单选题In a class of 160 seniors, the ratio of boys to girls is 3 to 5. In the junior class, the ratio of boys to girls is 3 to 2. When the two classes are combined, the ratio of boys to girls is 1 to 1. How many students are in the junior class?A 400B 360C 2

题目

单选题

In a class of 160 seniors, the ratio of boys to girls is 3 to 5. In the junior class, the ratio of boys to girls is 3 to 2. When the two classes are combined, the ratio of boys to girls is 1 to 1. How many students are in the junior class?

400

360

200

180

160

相似考题

1.Bob is __ of the two boys. Mary is ____ of the three girls.A、tall,shortB、taller,the shorterC、tallest,the shortestD、the taller,the shortest

2.BPeople usually think that boys are stronger，heavier and taller than girls． Maybe it's true．Some people even think that boys are smarter than girls．Expert's view:l can' t agree with them． If you say that girls learn faster than boys，you may be right，at least when it comes to young chimps(猩猩) using tools．People found that girl chimps in Tanzania，East Africa，use sticks to find tasty insects(昆虫) two years earlier than boy chimps． This is because young girl chimps watch their moms col-lect bugs，while the boy chimps climb trees．But young boy chimps may hunt and throw(扔) sooner than girl clumps．It's also true for humans．It-s easier for girls to learn to write and draw earlier，but boys often run and throw balls earlier than girls．Teacher's view:l think boys and girls both have their special advantages． Boys are good at sports． They are very athletic． But girls do well in performance． They are very calm．( )26． People usually think boys are _________'than girls．A． tallerB． strongerC． heavierD． All of the above

3.28． Teachers think that__________A． boys and girls both have their special advantagesB． boys are calmer than girlsC． girls are better at sports than boysD． girls do better in drawing than boys

4.Class one has 23 _________.()A.boy studentsB.boys studentsC.boy’s studentsD.students of boys

更多“单选题In a class of 160 seniors, the ratio of boys to girls is 3 to 5. In the junior class, the ratio of boys to girls is 3 to 2. When the two classes are combined, the ratio of boys to girls is 1 to 1. How many students are in the junior class?A 400B 360C 2”相关问题

第1题：

30． What-s the best title of the passage?
A． Boys and Girls．．
B． Are’Girls Smarter?
C． Young Boy and Girl Chimps．
D． Are Boys Slower?

正确答案：B
30.B【解析】全文围绕专家不同意女孩没有男孩聪明这个观点提出事实论据，故选B.
第2题：

According to the author, the reason why parental divorce has greater effect on boys than on girls is that_____.
［A］ all cultures encourage male aggression and noncompliance
［B］ boys are always involved in their parents’ fights
［C］ males are usually viewed as the models in self-control and strong will
［D］ boys are basically more self-disciplined than girls

正确答案：C

本题考查推理引申。第三段中间作者提出了一个问题，怎样解释离婚对男孩影响比女孩大的原因呢？接下来文章从三个方面进行了解释：一，我们的文化更能容忍男孩具有攻击性和不驯服；二，男孩更希望树立起自律的强悍的男人形象，也希望父母严格自律；三，男孩较少受到他人的同情与支持。［C］符合第二点原因，是正确项。［A］错在“所有文化”，文章中是“我们的文化”。［B］错在“卷入（involved in）”，全文最后一句提到的是“男孩更容易看到（be exposed to）父母吵架”。［D］这种说法无从推知。
第3题：

In terms of receiving acceptance from teachers the proportion of boys to girls is appropriately equal. (Sexism in Class) ()

此题为判断题(对，错)。

正确答案：T
第4题：

－ How many students do you teach? － _________

A、Quite a bit.
B、More boys than girls.
C、About 50.
D、Three mornings.

正确答案:C
第5题：

--How many boy students are there in your class?
--There are __________girls as boys.

A．three times many as
B．many as three times
C．as many three times
D．three times as many

答案：D
解析：
考查倍数表达法。句意为“女生人数是男生的三倍”，此句用的是该句型A+be+倍数+as+adj．／adv．(原级)+as+B，表示“A是B的多少倍数”。故选D。
第6题：

共用题干
第三篇

Boys' schools are the perfect place to teach young men to express their emotions and are more likely to get involved in activities such as art,dance and music,according to research released today.
Far from the traditional image of a culture of aggressive masculinity,the absence of girls gives boys the chance to develop without pressure to conform to a stereotype,the U.S. study says.
Boys at single-sex schools were said to be more likely to get involved in cultural and artistic activities that helped develop their emotional expressiveness,rather than feeling they had to conform to the "boy code" of hiding their emotions to be a "real man".
The report,presented at a conference of the International Boys' Schools Coalition in London attended by the heads of private and state schools,goes against received wisdom that boys do better when taught alongside girls.
The headmaster of Eton,Tony Little,warned that boys were being failed by the British education system because it had become too focused on girls.He criticised teachers for failing to recognise that boys are actually more emotional than girls,despite the fact that girls"turn on the waterworks".
The research argued that boys often perform badly in mixed schools because they become demoralised when their female counterparts do better earlier in verbal skills and reading,because the left side of the brain develops faster in girls.They also felt they had to be"cool"rather than studious.
But in single-sex schools teachers are able to tailor lessons to boys' learning style,letting them move around the classroom and getting them to compete in teams to prevent boredom,wrote the study's author,education expert Abigail James,of the University of Virginia.
Teachers could encourage boys to enjoy reading and writing with specifically"boy-focused" approaches such as themes and characters that appeal to them. Because,the researchers say,boys generally have better spatial skills,more acute vision,learn best through touch,are more impulsive and more physically active,they need to be given "hands-on" lessons where they are allowed to walk around." Boys in mixed schools view classical music as feminine and prefer the modern genre in which violence and sexism are major themes,"James wrote.
Single-sex education also made it less likely that boys would feel they had to conform to a stereotype gained from the media by girls that men should be "masterful and in charge" in relationships. "in the present sexualised atmosphere prevalent in mnixed schools,boys feel coerced into acting like men before they understand themselves well enough to know what that means,"the report said.

What does Tony Little say about the British education system?
A:It fails more boys than girls academically.
B:It focuses more on mixed school education.
C:It fails to give boys the attention they need.
D:It places more pressure on boys than on girls.

答案：C
解析：
文章第三段讲到：在男子学校里，一男生们可以有更多的杯会参与文化和艺术活动，还有助于他们发展情感表现力。他们不用强迫自己遵守“男性代码”，隐藏内心的感情，表现的像个“真正的男人”。
第四段最后讲到：报告驳斤了认为男生跟女生二起能学得更好的传统认识。因此得出人们通常认为“in a mixed school boys perform relatively better"。
第五段讲到：现在的英国教育体系太过关注女生，可能会造成对界李的教育失败。他批评教师们没有意识到，虽然女生很容易哭终，停男生其牢些幸生情感更丰富。
答案相关句是第七段第，句",..tahers are ab卜迄叹禅or lessons to boys' learning style...”······教师会为男生们量身制作适合体们学习方式的课程······。
相关句在第八段第二句：“...boys generally have better spatia1 skill, more acute vision, learn...”所以B项为正确答案。
第7题：

共用题干
Teaching Math,Teaching Anxiety
In a new study about the way kids learn math in elementary school,the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math.
If these girls keep getting math-anxious female teachers in later grades,it may create a snowball effect on their math achievement said Levine. In other words,girls may end up learning math anxiety from their teachers. The study suggests that if these girls grow up believing that boys are better at math than girls are,then these girls may not do as well as they would have if they were more confident.
Just as students find certain subjects to be difficult,teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word“anxiety”to describe such feelings:anxiety is uneasiness or worry.
The new study found that when a teacher has anxiety about math,that feeling can influence how her female students feel about math. The study involved 65 girls,52 boys and 17 first-and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year,and the researchers compared the scores.
The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt,for example,was probably anxious about math.
Boys,on average,were unaffected by a teacher's anxiety. On average,girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did. Plus,on the test showing whether someone thought a math superstar had to be a boy,20 girls showed feeling that boys would be better at math一and all of these girls had been taught by female teachers who had math anxiety.
“This is an interesting study,but the results need to be interpreted as preliminary and in need of replication with a larger sample,”said David Geary,a psychologist at the University of Missouri in Columbia.

The sixth paragraph tells us that the research findings______.
A:prove a strong link between female teachers'math anxiety and their female students' math achievements
B: show that male students are less likely to be affected by their math anxiety than female students
C: provide strong evidence that math superstars are more likely to be males than females
D: discover a strong link between teachers'math anxiety and their students'math achievements

答案：A
解析：
题干意为“依据第一段的内容来看，芝加哥大学的研究结果是什么？”利用题干及备选项中的细节信息词/短语result of the research, University of Chicago, girls, math skills,boys,female teachers' math skills,girl students' math skills作为定位线索，在第一段中寻找到相关句：In a new study about the way kids learn math in elementary school, the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math．第一段是一个独立成段句，该句意为“在最近一项关于小学生学数学的研究中，芝加哥大学的心理学家Sian Beilock和Susan Levine发现，女教师的想法和女学生的学习之间有着惊人的联系：如果女教师对自己的数学能力感到焦虑，她的女学生很可能会认为男孩学数学比女孩学得更好”。由此可知女教师对自己数学能力的自信会影响女生对自己数学能力的信心，从而最终会影响到女生的数学能力，因此答案为D项“女教师对自己数学能力的自信与女生的数学能力相关”。
题干意为“第三段暗示了什么？”题干中没有任何细节信息词可以利用，因此只能利用备选项中的细节信息词/短语math teachers,math learners, subject,difficulty, difficult subject,teachers' confidence, teaching math, students learning math，利用这些线索词在第三段中找到相关句：Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word”anxiety“ to describe such feelings:anxiety is uneasiness or worry．第三段第一句提到“如同学生会认为某些科目很难学那样，老师也会认为某些学科既难学也难教”。最后一句提到“这就是研究者所言的‘焦虑’：不自在或担心”。依据这两个句子可以推断出作者想要告诉读者，教师会因为数学这门学科的难度而对教授该课程产生焦虑，也就是不自信，因此答案为B项“像数学这样难学的科目可能会影响教师对教授该学科的自信”。
题干意为“根据实验来看，当那些老师感到……时可能会对数学产生焦虑感”。利用题干及备选项中的细节信息词/短语experiment , teachers , numbers of a sales receipt作为定位线索，在第五段中找到相关句：The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt.A teacher who got nervous looking at the numbers on a sales receipt, for example,was probably anxious about math．定位线索词集中出现在第五段第二句和第三句中，因此重点关注这两个句子。这两个句子提到“然后研究者们对教师进行测试，试图找出哪些教师对数学感到焦虑，研究者们问教师们当遇到数学问题诸如阅读销售清单时的感受，如果一位教师一看到销售清单的数字就感到紧张，那么她可能会对数学存在焦虑”。由此可知选项C项“一看销售清单上的数字就感到紧张”是答案。saving the numbers意为“保存数字”,filling in the numbers意为“数字排序”,memorizing the numbers意为“数字记忆”。
第8题：

共用题干
Teaching Math,Teaching Anxiety
In a new study about the way kids learn math in elementary school,the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math.
If these girls keep getting math-anxious female teachers in later grades,it may create a snowball effect on their math achievement said Levine. In other words,girls may end up learning math anxiety from their teachers. The study suggests that if these girls grow up believing that boys are better at math than girls are,then these girls may not do as well as they would have if they were more confident.
Just as students find certain subjects to be difficult,teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word“anxiety”to describe such feelings:anxiety is uneasiness or worry.
The new study found that when a teacher has anxiety about math,that feeling can influence how her female students feel about math. The study involved 65 girls,52 boys and 17 first-and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year,and the researchers compared the scores.
The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt,for example,was probably anxious about math.
Boys,on average,were unaffected by a teacher's anxiety. On average,girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did. Plus,on the test showing whether someone thought a math superstar had to be a boy,20 girls showed feeling that boys would be better at math一and all of these girls had been taught by female teachers who had math anxiety.
“This is an interesting study,but the results need to be interpreted as preliminary and in need of replication with a larger sample,”said David Geary,a psychologist at the University of Missouri in Columbia.

What is implied in the third paragraph?
A: Math teachers,like math learners,do not like the subject due to its difficulty.
B: A difficult subject like math may affect teachers'confidence in teaching the subject.
C: Teachers are more anxious teaching math than their students learning math.
D: Math is so difficult that no teachers like to teach it.

答案：B
解析：
题干意为“依据第一段的内容来看，芝加哥大学的研究结果是什么？”利用题干及备选项中的细节信息词/短语result of the research, University of Chicago, girls, math skills,boys,female teachers' math skills,girl students' math skills作为定位线索，在第一段中寻找到相关句：In a new study about the way kids learn math in elementary school, the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math．第一段是一个独立成段句，该句意为“在最近一项关于小学生学数学的研究中，芝加哥大学的心理学家Sian Beilock和Susan Levine发现，女教师的想法和女学生的学习之间有着惊人的联系：如果女教师对自己的数学能力感到焦虑，她的女学生很可能会认为男孩学数学比女孩学得更好”。由此可知女教师对自己数学能力的自信会影响女生对自己数学能力的信心，从而最终会影响到女生的数学能力，因此答案为D项“女教师对自己数学能力的自信与女生的数学能力相关”。
题干意为“第三段暗示了什么？”题干中没有任何细节信息词可以利用，因此只能利用备选项中的细节信息词/短语math teachers,math learners, subject,difficulty, difficult subject,teachers' confidence, teaching math, students learning math，利用这些线索词在第三段中找到相关句：Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word”anxiety“ to describe such feelings:anxiety is uneasiness or worry．第三段第一句提到“如同学生会认为某些科目很难学那样，老师也会认为某些学科既难学也难教”。最后一句提到“这就是研究者所言的‘焦虑’：不自在或担心”。依据这两个句子可以推断出作者想要告诉读者，教师会因为数学这门学科的难度而对教授该课程产生焦虑，也就是不自信，因此答案为B项“像数学这样难学的科目可能会影响教师对教授该学科的自信”。
题干意为“根据实验来看，当那些老师感到……时可能会对数学产生焦虑感”。利用题干及备选项中的细节信息词/短语experiment , teachers , numbers of a sales receipt作为定位线索，在第五段中找到相关句：The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt.A teacher who got nervous looking at the numbers on a sales receipt, for example,was probably anxious about math．定位线索词集中出现在第五段第二句和第三句中，因此重点关注这两个句子。这两个句子提到“然后研究者们对教师进行测试，试图找出哪些教师对数学感到焦虑，研究者们问教师们当遇到数学问题诸如阅读销售清单时的感受，如果一位教师一看到销售清单的数字就感到紧张，那么她可能会对数学存在焦虑”。由此可知选项C项“一看销售清单上的数字就感到紧张”是答案。saving the numbers意为“保存数字”,filling in the numbers意为“数字排序”,memorizing the numbers意为“数字记忆”。
第9题：

How many students do you teach?（）
AQuite a bit.
BMore boys than girls.
CAbout .
DThree mornings.

C
略
第10题：

单选题
-How many boy students are there in your class? -There are ______ girls as boys .
A
three times many as
B
many as three times
C
as many three times
D
three times as many

正确答案： A
解析：
第11题：

单选题
On ______ side of the street was standing young boys and girls to welcome the President.
A
both
B
two
C
either
D
every

正确答案： A
解析：
第12题：

单选题
—How many girls are there in your class?—_____them ______ over twenty.
A
A number of; are
B
The number of; are
C
A number of; is
D
The number of; is

正确答案： A
解析：
句意：—你们班有多少个女生？—女生的数量是二十多个。本题考查固定搭配的辨析以及主谓一致。表示“……的数量”用the number of表达，其谓语动词使用单数形式，因此D项符合题意。a number of表示“许多……”，做主语时，谓语动词应使用复数形式。
第13题：

Boys like sports more than girls， they are very _a __________．

正确答案：
35. athletic
第14题：

The text indicates that private schools are very selective because they
[A] have no reliable methods to pick students for a class.
[B] want a good mixture of boys and girls for classes.
[C] encounter more demand than they can cope with.
[D] prefer to enroll children of their relatives.

正确答案：C
43．C该题为推理题。根据第三段“The problem for the applicants is that while demand has increased．supply has not.”可知申请私立学校的人数在增加，但私立学校的招生名额却没有增加。接着第四段详细讲了一些私立学校如何选择学生。由此可推断，私立学校对学生如此精挑细选的原因在于有太多的学生申请，他们不得不通过各种方法来选择学生。选项A与文章的意思有所出入，第四段第二句“Schools know there is no easy way to pick a class when children are so young.”可知学校认为选择学生没有简单的方法，并不是如A项所表示的选择的方法不可靠。选项B是某些学校选择生源的方法，即男女比例协调，由此可知A、B两项不能作为学校精心选择学生的原因。选项D在文中没有提及，故选C。
第15题：

Girls are usually a little weaker than boys __________ mathematics.
A、at
B、 in
C、with
D、as to

参考答案：B
第16题：

25． Which sentence is right according to the passage?
A． There are no green sweaters．
B． Young boys and girls like T-shirts very much．
C， The T-shirt in Hualin are for young boys．and girls．
D． Only the things in the advertisement are cheap．

正确答案：C
25．C【解析】根据文章中~For young boys... for only 15 yuan！”判断可知。
第17题：

共用题干
第三篇

Boys' schools are the perfect place to teach young men to express their emotions and are more likely to get involved in activities such as art,dance and music,according to research released today.
Far from the traditional image of a culture of aggressive masculinity,the absence of girls gives boys the chance to develop without pressure to conform to a stereotype,the U.S. study says.
Boys at single-sex schools were said to be more likely to get involved in cultural and artistic activities that helped develop their emotional expressiveness,rather than feeling they had to conform to the "boy code" of hiding their emotions to be a "real man".
The report,presented at a conference of the International Boys' Schools Coalition in London attended by the heads of private and state schools,goes against received wisdom that boys do better when taught alongside girls.
The headmaster of Eton,Tony Little,warned that boys were being failed by the British education system because it had become too focused on girls.He criticised teachers for failing to recognise that boys are actually more emotional than girls,despite the fact that girls"turn on the waterworks".
The research argued that boys often perform badly in mixed schools because they become demoralised when their female counterparts do better earlier in verbal skills and reading,because the left side of the brain develops faster in girls.They also felt they had to be"cool"rather than studious.
But in single-sex schools teachers are able to tailor lessons to boys' learning style,letting them move around the classroom and getting them to compete in teams to prevent boredom,wrote the study's author,education expert Abigail James,of the University of Virginia.
Teachers could encourage boys to enjoy reading and writing with specifically"boy-focused" approaches such as themes and characters that appeal to them. Because,the researchers say,boys generally have better spatial skills,more acute vision,learn best through touch,are more impulsive and more physically active,they need to be given "hands-on" lessons where they are allowed to walk around." Boys in mixed schools view classical music as feminine and prefer the modern genre in which violence and sexism are major themes,"James wrote.
Single-sex education also made it less likely that boys would feel they had to conform to a stereotype gained from the media by girls that men should be "masterful and in charge" in relationships. "in the present sexualised atmosphere prevalent in mnixed schools,boys feel coerced into acting like men before they understand themselves well enough to know what that means,"the report said.

It is commonly believed that in a mixed school boys__________.
A:perform relatively better
B:grow up more healthily
C:behave more responsibly
D:receive a better education

答案：A
解析：
文章第三段讲到：在男子学校里，一男生们可以有更多的杯会参与文化和艺术活动，还有助于他们发展情感表现力。他们不用强迫自己遵守“男性代码”，隐藏内心的感情，表现的像个“真正的男人”。
第四段最后讲到：报告驳斤了认为男生跟女生二起能学得更好的传统认识。因此得出人们通常认为“in a mixed school boys perform relatively better"。
第五段讲到：现在的英国教育体系太过关注女生，可能会造成对界李的教育失败。他批评教师们没有意识到，虽然女生很容易哭终，停男生其牢些幸生情感更丰富。
答案相关句是第七段第，句",..tahers are ab卜迄叹禅or lessons to boys' learning style...”······教师会为男生们量身制作适合体们学习方式的课程······。
相关句在第八段第二句：“...boys generally have better spatia1 skill, more acute vision, learn...”所以B项为正确答案。
第18题：

共用题干
Teaching Math,Teaching Anxiety
In a new study about the way kids learn math in elementary school,the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math.
If these girls keep getting math-anxious female teachers in later grades,it may create a snowball effect on their math achievement said Levine. In other words,girls may end up learning math anxiety from their teachers. The study suggests that if these girls grow up believing that boys are better at math than girls are,then these girls may not do as well as they would have if they were more confident.
Just as students find certain subjects to be difficult,teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word“anxiety”to describe such feelings:anxiety is uneasiness or worry.
The new study found that when a teacher has anxiety about math,that feeling can influence how her female students feel about math. The study involved 65 girls,52 boys and 17 first-and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year,and the researchers compared the scores.
The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt,for example,was probably anxious about math.
Boys,on average,were unaffected by a teacher's anxiety. On average,girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did. Plus,on the test showing whether someone thought a math superstar had to be a boy,20 girls showed feeling that boys would be better at math一and all of these girls had been taught by female teachers who had math anxiety.
“This is an interesting study,but the results need to be interpreted as preliminary and in need of replication with a larger sample,”said David Geary,a psychologist at the University of Missouri in Columbia.

What is the result of the research at the University of Chicago,according to the first paragraph?
A:Girls comfortable with their own math skills are better than boys at math.
B: Girls uncomfortable with their own math skills are not as good as boys at math.
C: Female teachers'math skills have influence over girl students'math skills.
D: Female teachers'confidence in their math skills is related to girls'math skills.

答案：D
解析：
题干意为“依据第一段的内容来看，芝加哥大学的研究结果是什么？”利用题干及备选项中的细节信息词/短语result of the research, University of Chicago, girls, math skills,boys,female teachers' math skills,girl students' math skills作为定位线索，在第一段中寻找到相关句：In a new study about the way kids learn math in elementary school, the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math．第一段是一个独立成段句，该句意为“在最近一项关于小学生学数学的研究中，芝加哥大学的心理学家Sian Beilock和Susan Levine发现，女教师的想法和女学生的学习之间有着惊人的联系：如果女教师对自己的数学能力感到焦虑，她的女学生很可能会认为男孩学数学比女孩学得更好”。由此可知女教师对自己数学能力的自信会影响女生对自己数学能力的信心，从而最终会影响到女生的数学能力，因此答案为D项“女教师对自己数学能力的自信与女生的数学能力相关”。
题干意为“第三段暗示了什么？”题干中没有任何细节信息词可以利用，因此只能利用备选项中的细节信息词/短语math teachers,math learners, subject,difficulty, difficult subject,teachers' confidence, teaching math, students learning math，利用这些线索词在第三段中找到相关句：Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word”anxiety“ to describe such feelings:anxiety is uneasiness or worry．第三段第一句提到“如同学生会认为某些科目很难学那样，老师也会认为某些学科既难学也难教”。最后一句提到“这就是研究者所言的‘焦虑’：不自在或担心”。依据这两个句子可以推断出作者想要告诉读者，教师会因为数学这门学科的难度而对教授该课程产生焦虑，也就是不自信，因此答案为B项“像数学这样难学的科目可能会影响教师对教授该学科的自信”。
题干意为“根据实验来看，当那些老师感到……时可能会对数学产生焦虑感”。利用题干及备选项中的细节信息词/短语experiment , teachers , numbers of a sales receipt作为定位线索，在第五段中找到相关句：The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt.A teacher who got nervous looking at the numbers on a sales receipt, for example,was probably anxious about math．定位线索词集中出现在第五段第二句和第三句中，因此重点关注这两个句子。这两个句子提到“然后研究者们对教师进行测试，试图找出哪些教师对数学感到焦虑，研究者们问教师们当遇到数学问题诸如阅读销售清单时的感受，如果一位教师一看到销售清单的数字就感到紧张，那么她可能会对数学存在焦虑”。由此可知选项C项“一看销售清单上的数字就感到紧张”是答案。saving the numbers意为“保存数字”,filling in the numbers意为“数字排序”,memorizing the numbers意为“数字记忆”。
第19题：

共用题干
Teaching Math,Teaching Anxiety
In a new study about the way kids learn math in elementary school,the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math.
If these girls keep getting math-anxious female teachers in later grades,it may create a snowball effect on their math achievement said Levine. In other words,girls may end up learning math anxiety from their teachers. The study suggests that if these girls grow up believing that boys are better at math than girls are,then these girls may not do as well as they would have if they were more confident.
Just as students find certain subjects to be difficult,teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word“anxiety”to describe such feelings:anxiety is uneasiness or worry.
The new study found that when a teacher has anxiety about math,that feeling can influence how her female students feel about math. The study involved 65 girls,52 boys and 17 first-and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year,and the researchers compared the scores.
The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt,for example,was probably anxious about math.
Boys,on average,were unaffected by a teacher's anxiety. On average,girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did. Plus,on the test showing whether someone thought a math superstar had to be a boy,20 girls showed feeling that boys would be better at math一and all of these girls had been taught by female teachers who had math anxiety.
“This is an interesting study,but the results need to be interpreted as preliminary and in need of replication with a larger sample,”said David Geary,a psychologist at the University of Missouri in Columbia.

According to the experiment,those teachers were probably anxious about math when they felt______.
A:nervous memorizing the numbers of a sales receipt
B: helpless saving the numbers of a sales receipt
C: uneasy reading the numbers of a sales receipt
D: hopeless filling in the numbers of a sales report

答案：C
解析：
题干意为“依据第一段的内容来看，芝加哥大学的研究结果是什么？”利用题干及备选项中的细节信息词/短语result of the research, University of Chicago, girls, math skills,boys,female teachers' math skills,girl students' math skills作为定位线索，在第一段中寻找到相关句：In a new study about the way kids learn math in elementary school, the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math．第一段是一个独立成段句，该句意为“在最近一项关于小学生学数学的研究中，芝加哥大学的心理学家Sian Beilock和Susan Levine发现，女教师的想法和女学生的学习之间有着惊人的联系：如果女教师对自己的数学能力感到焦虑，她的女学生很可能会认为男孩学数学比女孩学得更好”。由此可知女教师对自己数学能力的自信会影响女生对自己数学能力的信心，从而最终会影响到女生的数学能力，因此答案为D项“女教师对自己数学能力的自信与女生的数学能力相关”。
题干意为“第三段暗示了什么？”题干中没有任何细节信息词可以利用，因此只能利用备选项中的细节信息词/短语math teachers,math learners, subject,difficulty, difficult subject,teachers' confidence, teaching math, students learning math，利用这些线索词在第三段中找到相关句：Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for everyone. Researchers use the word”anxiety“ to describe such feelings:anxiety is uneasiness or worry．第三段第一句提到“如同学生会认为某些科目很难学那样，老师也会认为某些学科既难学也难教”。最后一句提到“这就是研究者所言的‘焦虑’：不自在或担心”。依据这两个句子可以推断出作者想要告诉读者，教师会因为数学这门学科的难度而对教授该课程产生焦虑，也就是不自信，因此答案为B项“像数学这样难学的科目可能会影响教师对教授该学科的自信”。
题干意为“根据实验来看，当那些老师感到……时可能会对数学产生焦虑感”。利用题干及备选项中的细节信息词/短语experiment , teachers , numbers of a sales receipt作为定位线索，在第五段中找到相关句：The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt.A teacher who got nervous looking at the numbers on a sales receipt, for example,was probably anxious about math．定位线索词集中出现在第五段第二句和第三句中，因此重点关注这两个句子。这两个句子提到“然后研究者们对教师进行测试，试图找出哪些教师对数学感到焦虑，研究者们问教师们当遇到数学问题诸如阅读销售清单时的感受，如果一位教师一看到销售清单的数字就感到紧张，那么她可能会对数学存在焦虑”。由此可知选项C项“一看销售清单上的数字就感到紧张”是答案。saving the numbers意为“保存数字”,filling in the numbers意为“数字排序”,memorizing the numbers意为“数字记忆”。
第20题：

共用题干
Teaching Math,Teaching Anxiety
In a new study about the way kids learn math in elementary school,the psychologists at the University of Chicago Sian Beilock and Susan Levine found a surprising relationship be-tween what female teachers think and what female students learn:If a female teacher is un-comfortable with her own math skills,then her female students are more likely to believe that boys are better than girls at math.
If these girls keep getting math-anxious female teachers in later grades,it may create a snowball effect on their math achievement said Levine. In other words,girls may end up learning math anxiety from their teachers. The study suggests that if these girls grow up be-lieving that boys are better at math than girls are,then these girls may not do as well as they would have if they were more confident.
Just as students find certain subjects to be difficult,teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particularly difficult for every-one. Researchers use the word“anxiety”to describe such feelings:anxiety is uneasiness or worry.
The new study found that when a teacher has anxiety about math,that feeling can influ-
ence how her female students feel about math. The study involved 65 girls,52 boys and 17 first-and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year,and the researchers com-pared the scores.
The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out
which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt,for example, was probably anxious about math.
Boys,on average,were unaffected by a teacher's anxiety. On average,girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study
did. Plus,on the test showing whether someone thought a math superstar had to be a boy,20 girls showed feeling that boys would be better at math一and all of these girls had been taught by female teachers who had math anxiety.
“This is an interesting study,but the results need to be interpreted as preliminary and in need of replication with a larger sample,”said David Geary,a psychologist at the University of Missouri in Columbia.

What is the result of the research at the University of Chicago,according to the firstparagraph?
A: Girls comfortable with their own math skills are better than boys at math.
B: Girls uncomfortable with their own math skills are not as good as boys at math.
C: Female teachers'math skills have influence over girl students'math skills.
D: Female teachers'confidence in their math skills is related to girls'math skills.

答案：D
解析：
题干意为“依据第一段的内容来看，芝加哥大学的研究结果是什么？”利用题干及备选项中的细节信息词/短语 result of the research , University of Chicago , girls , math skills,boys,female teachers' math skills,girl students' math skills作为定位线索，在第一段中寻找到相关句：In a new study about the way kids learn math in elementary school, the psy-chologists at the University of Chicago Sian Beilock and Susan Levine found a surprising rela- tionship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills，then her female students are more likely to believe that boys are better than girls at math．第一段是一个独立成段句，该句意为“在最近一项关于小学生学数学的研究中，芝加哥大学的心理学家Sian Beilock和Susan Levine发现，女教师的想法和女学生的学习之间有着惊人的联系：如果女教师对自己的数学能力感到焦虑，她的女学生很可能会认为男孩学数学比女孩学得更好”。由此可知女教师对自己数学能力的自信会影响女生时自己数学能力的信心，从而最终会影响到女生的数学能力，因此答案为D项“女教师对自己数学能力的自信与女生的数学能力相关”。
题干意为“第三段暗示了什么？”题干中没有任何细节信息词可以利用，因此只能利用备选项中的细节信息词/短语math teachers,math learners, subject,difficulty, dif-ficult subject,teachers' confidence, teaching math, students learning math，利用这些线索词在第三段中找到相关句：Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn一and teach. The subject of math can be particular-ly difficult for everyone. Researchers use the word“anxiety”to describe such feelings: anxie-ty is uneasiness or worry．第三段第一句提到“如同学生会认为某些科目很难学那样，老师也会认为某些学科既难学也难教”。最后一句提到“这就是研究者所言的‘焦虑’：不自在或担心”。依据这两个句子可以推断出作者想要告诉读者，教师会因为数学这门学科难而对教授该课程产生焦虑，也就是不自信，因此答案为B项“像数学这样难学的科目可能会影响教师对教授该学科的自信”。
题干意为“根据实验来看，当那些老师感到……时可能会对数学产生焦虑感”。利用题干及备选项中的细节信息词/短语experiment , teachers , numbers of a sales re-ceipt作为定位线索，在第五段中找到相关句：The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the research-ers turned to the teachers:To find out which teachers were anxious about math,the research-ers asked the teachers how they felt at times when they came across math,such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt， for example,was probably anxious about math．定位线索词集中出现在第五段第二句和第三句中，因此重点关注这两个句子。这两个句子提到“然后研究者们对教师进行测试，试图找出哪些教师对数学感到焦虑，研究者们问教师们当遇到数学问题诸如阅读销售清单时的感受，如果一位教师一看到销售清单的数字就感到紧张，那么她可能会对数学存在焦虑”。由此可知选项C项“一看销售清单上的数字就感到紧张”是答案。saving the numbers意为“保存数字”,filling in the numbers意为“数字排序”,memorizing the numbers意为“数字记忆”。
题干意为“第六段告诉我们研究结果……”利用题干及备选项中的细节信息词/短语research findings,strong link,female teachers' math anxiety,female students' math achievements , math anxiety , strong evidence , math superstars , males , females作为定位线索，在第六段中找到相关句：Boys , on average , were unaffected by a teacher's anxiety. On aver-age,girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did. Plus,on the test showing whether someone thought a math su- perstar had to be a boy,20 girls showed feeling that boys would be better at math一and all of these girls had been taught by female teachers who had math anxiety（与female teachers' math anxiety呼应）．定位线索词集中出现在第六段最后一句中，因此重点关注这个句子。该句意为“在关于是否认为数学高手应该是男孩的测试中，有20个女孩认为男孩数学比女孩好，这20个女孩的老师都是女性，而且都对数学有焦虑感”。这说明女教师对数学的焦虑感会影响女学生对自己数学能力的信心。该句的前一句提到“一般来说，教女孩子的教师对数学有焦虑感，那么女孩子们在学年结束时测试得分会比其他的女孩要低”。结合这两个句子的意思可以得出这样的结论：女教师对数学的焦虑感会影响女学生对自己数学能力的信心，并最终影响女学生的数学成绩，因此该题答案为A项“证明在女教师对数学的焦虑感和女学生的数学成绩之间有密切的联系”。
第21题：

How many students do you teach?（）
- A、Quite a bit.
- B、More boys than girls.
- C、About .
- D、Three mornings.
正确答案:C
第22题：

单选题
How many students do you teach?（）
A
Quite a bit.
B
More boys than girls.
C
About .
D
Three mornings.

正确答案： C
解析：暂无解析
第23题：

单选题
On _____ side of the street were standing young boys and girls to welcome the President.
A
both
B
two
C
either
D
every

正确答案： C
解析：
句意：年轻的男孩们和女孩们站在大街的两旁欢迎总统。此题考查词汇辨析。either两者之一，后面用单数，符合句式，C项为正确答案。both两者，后面应该用复数。two两（个）。every每一个。此句是一个倒装句型，表示方位的状语提前，主谓完全倒装，结构为：方位状语＋谓语部分＋主语部分。

单选题In a class of 160 seniors, the ratio of boys to girls is 3 to 5. In the junior class, the ratio of boys to girls is 3 to 2. When the two classes are combined, the ratio of boys to girls is 1 to 1. How many students are in the junior class?A 400B 360C 2

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