问答题Kara attends a university where students study for an average (arithmetic mean) of 13.4 hours per week. How many hours per week does Kara study? (1) The standard deviation of study time at Kara’s school is 2.8. (2) Kara’s study time is one standard d
题目
问答题
Kara attends a university where students study for an average (arithmetic mean) of 13.4 hours per week. How many hours per week does Kara study? (1) The standard deviation of study time at Kara’s school is 2.8. (2) Kara’s study time is one standard deviation away from the mean.
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更多“问答题Kara attends a university where students study for an average (arithmetic mean) of 13.4 hours per week. How many hours per week does Kara study? (1) The standard deviation of study time at Kara’s school is 2.8. (2) Kara’s study time is one standard d”相关问题
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第1题：
Many people find the experience of attending university lectures to be confusing and frustrating experience.The lecturer speaks for one or two hours, perhaps (1)The talk with slides, writing up important information on the blackboard distributing reading material and giving out assignment.The new students sees the other students continuously writing on notebooks and wonders what to write.Very often the student leave the lecture with notes which do not catch the main points and(2) become hard even for the students to understand
Most institutions provide courses which assist new students to develop the skills they need to be effectively listeners and note-takers.If these are unavailable.there are many usual study-skills guides which (3) learners to practice these skills independently.In all cases it is important to (4) the problem before actually starting your studies
It is important to acknowledge that most students have difficulty in acquiring the language required in college study.One way of (5)these difficulties is to attend the language and study-skills classes which most institutions provide throughout the academic year.Another basic strategy is to find a study partner with whom it is possible to identify difficulties, exchange ideas and provide support.(完型填空)
A.Which
B.Enable
C.Overcoming
D.Tackle
E.Illustrating
参考答案：EABDC
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第2题：
II．完形填空． (20分)
What is the best way to study? This is a very ．important question． Some Chinese students often (11) very hard for long hours． It is a (12) habit, but it is not a better way to study．
An efficient（讲率的） student must (13) enough sleep, enough food and enough rest． Ev-ery week you (14) to go out for a walk or visit some friends or some nice places． It's good (15) your study． When you return to your studies, you'll find yourself (16) than before and you'll learn more．
Maybe we can ( 17) that learning English is (18) taking Chinese medicine． We don't mean that it ,s bitter(苦的)． We mean that like Chinese medicine, the efficiency of your study (19) slowly but surely． ( 20) slowly but surely every day and effects will come just like Chinese medicine．
( )11．
A．play
B．study
C．sleep
D．think
正确答案：B
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第3题：
The second paragraph is mainly about ______.
A. international students solve their money problem in different ways
B. international students can't study full time because they have to do spare-time jobs
C. American students prefer to study in their own country
D. American students can attend colleges abroad easily
正确答案：A
本题属理解分析题。文章第二段第一句已明确点明本段的主要意思。 -
第4题：
Which of the following is not mentioned in this article?__________A.The number of the Chinese students studying in the US
B.The Chinese government's reaction to this affair
C.The time when the US delegation will leave Beijing
D.The increase of the US students that study in China答案：C解析：文章第六段“Morethan63，000Chinese students are currently studyingintheUnitedStates”可以排除A项；文章第二段可以得知政府对这次事件的反应是号召的，故排除B；文章倒数第三段“…shows that6．389 us students eame to China in the 2005—2006 academic year，up 35 percent year-on—year．”可以知道在中国
学习的美国学生增加了．排除D。故答案选C。 -
第5题：
资料：The increasing amount of personal information that can be collected by computer programs that track how people use Facebook has been revealed by an extensive academic study.
Such programs can show undisclosed private information such as Facebook users' sexuality, drug-use habits and even whether their parents separated when they were young, according to the study by the University of Cambridge academics.
In one of the biggest studies of its kind scientists from the university’s team and a Microsoft-funded research center analyzed data from 58,000 Facebook users to predict traits and other information that were not provided in their profiles.
The algorithms were 88 per cent accurate in predicting male sexual orientation, 95 per cent for race and 80 per cent for religion .And political leanings, personality
types and emotional stability were also predicted with accuracy ranging from 62-75 per cent.
The study highlights growing concerns about social networks and how data trails can be mined for sensitive information even when people attempt to keep information about themselves private ：Less than 5 per cent of users were connected with explicitly gay groups.
Michal Kosinksi ，one of the report’s authors told the Financial Times that the university’s techniques could easily be replicated by companies to inter personal attributes a person did not wish to share such as sexual orientation or political views:”We used very simple and generic methods :Marketing companies and internet companies could spend much more time and resources and hence get much higher accuracy than we did.
The report also revealed some unexpected correlations such as people who liked ‘curly fries’ having higher IQs while those Who like Facebook’s “Sliding on Floors With Your Socks On”page were unlikely to use drugs.
According to Michal Kosinksi,which of the following is true according to the passage?A.The study draws people’s attention for private information
B.information can be predicted correctly in the study
C.some personal information may be collected and used by some companies
D.if people attempt to keep personal information private, things will change答案：C解析：本题考查的是细节理解
【关键词】Michal Kinkossi
【主题句】第6自然段Michal Kosinksi one of the report’s authors told the Financial Times that the university’s techniques could easily be replicated :by companies to inter personal attributes a person did not wish to share such as sexual orientation or political views:”We used very simple and generic methods :Marketing companies and internet companies could spend much More time and resources and hence get Much higher accuracy than we did。本报告的作者之一Michal Kosinksi告诉金融时报，大学的技术能够被公司轻易复制来将人们按照不希望分享的信息（如性取向或政治观点）归类，他说：“我们使用非常简单和基础的方式。市场营销公司和网络公司能够花更多的时间和资源得到比我们更精确的数据。”
【解析】题目意为“根据Michal Kinkossi所说，下面哪一项是正确的？”选项A意为“研究吸引了人们对个人私密信息的关注”，选项B意为“研究中信息可以被正确预测”，选项C意为“一些个人信息可以被一些公司搜集并使用”，选项D意为“如果人们试图保护个人隐私，情况将会改变”，根据主题句，选项C符合题意。 -
第6题：
资料：The increasing amount of personal information that can be collected by computer programs that track how people use Facebook has been revealed by an extensive academic study.
Such programs can show undisclosed private information such as Facebook users' sexuality, drug-use habits and even whether their parents separated when they were young, according to the study by the University of Cambridge academics.
In one of the biggest studies of its kind scientists from the university’s team and a Microsoft-funded research center analyzed data from 58,000 Facebook users to predict traits and other information that were not provided in their profiles.
The algorithms were 88 per cent accurate in predicting male sexual orientation, 95 per cent for race and 80 per cent for religion .And political leanings, personality
types and emotional stability were also predicted with accuracy ranging from 62-75 per cent.
The study highlights growing concerns about social networks and how data trails can be mined for sensitive information even when people attempt to keep information about themselves private ：Less than 5 per cent of users were connected with explicitly gay groups.
Michal Kosinksi ，one of the report’s authors told the Financial Times that the university’s techniques could easily be replicated by companies to inter personal attributes a person did not wish to share such as sexual orientation or political views:”We used very simple and generic methods :Marketing companies and internet companies could spend much more time and resources and hence get much higher accuracy than we did.
The report also revealed some unexpected correlations such as people who liked ‘curly fries’ having higher IQs while those Who like Facebook’s “Sliding on Floors With Your Socks On”page were unlikely to use drugs.
What is the main point of this passage?A.The efficiency of computer programs in data analysis
B.The result of a study can be predictable by computers
C.Usefulness of some personal information in marketing
D.Personal Information could be collected and analyzed online答案：D解析：本题考查的是主旨大意
【关键词】main point
【主题句】The increasing amount of personal information that can be collected by computer programs that track how people use Facebook has been revealed by an extensive academic study. 根据一份广泛学术研究揭露，电脑程序通过研究人们如何使用脸书的方式来收集越来越多的个人信息。
【解析】题目意为“全文的主要观点是什么？”选项A意为“电脑程序在数据分析方面的效率”，选项B意为“研究结果可以被电脑预测”，选项C意为“市场中一些个人信息的用处”，选项D意为“个人信息可以在网上被搜集和分析”，文章主要写的是对脸书搜集和分析用户个人信息的研究，以及一些人对其的观点和评价， -
第7题：
根据以下材料，回答题
He works ten hours a day, makes more thanUS $ 98000 a year, doesn′t 16 to take holidays, dresses 17 he pleases. He′s 18 been happier and is looking foranother job. This 33-year-old white, university-educated person is the typical Internetworker, according to a study by the Industry Standard, a San Francisco-basednews magazine.
There is also a reasonable chance that hisemployer will arrange his dry cleaning,19 him to 20 his dog to work, offer him fleemassages and give him stock options. And he still thinks people in other 21are doing 22.
The typical worker, it appears, not onlyenjoys an income about 23 the national average but also enjoys himself.At present 2.5 million people 24 by Internet firms in the US, The 25 ofthe study give plenty of reasons 26 so many people think the grass isgreener in Silicon Valley.
27 after tech-stoeks sharply 28 in April,29 many start-ups, there is still mood of enthusiasmand special advantage among those still employed. So what 30 52 percent of them "veryhappy" "Demandingwork" is given as the main reason and "salary" is 31 close 32 .
Those questioned in the study also listedworking weekends and 33 holidays as signs of the pleasure of theworkplaces.
Only 13 percent were paid for 34hours work while 14 percent put more than 12 hours work on an average day."It wasn′t all about 35." wrote Mary Ann Thompson in theintroduction to the study, "It was fun."
A.job
B.money
C.enthusiasm
D.time答案：B解析：考查名词辨析。job“工作”，money“金钱”，enthusiasm“热情”，time“时间”。前一句说，只有13％的人有加班费，但仍有这么多人选择这样的工作，可见大家并不全是为了钱，而是一种乐趣。故选B。 -
第8题：
根据以下材料，回答题
He works ten hours a day, makes more thanUS $ 98000 a year, doesn′t 16 to take holidays, dresses 17 he pleases. He′s 18 been happier and is looking foranother job. This 33-year-old white, university-educated person is the typical Internetworker, according to a study by the Industry Standard, a San Francisco-basednews magazine.
There is also a reasonable chance that hisemployer will arrange his dry cleaning,19 him to 20 his dog to work, offer him fleemassages and give him stock options. And he still thinks people in other 21are doing 22.
The typical worker, it appears, not onlyenjoys an income about 23 the national average but also enjoys himself.At present 2.5 million people 24 by Internet firms in the US, The 25 ofthe study give plenty of reasons 26 so many people think the grass isgreener in Silicon Valley.
27 after tech-stoeks sharply 28 in April,29 many start-ups, there is still mood of enthusiasmand special advantage among those still employed. So what 30 52 percent of them "veryhappy" "Demandingwork" is given as the main reason and "salary" is 31 close 32 .
Those questioned in the study also listedworking weekends and 33 holidays as signs of the pleasure of theworkplaces.
Only 13 percent were paid for 34hours work while 14 percent put more than 12 hours work on an average day."It wasn′t all about 35." wrote Mary Ann Thompson in theintroduction to the study, "It was fun."
A.third times
B.third time
C.three times
D.three time答案：C解析：考查倍数的表达方式。这里表示他的工资是全国平均水平的三倍。“三倍”用three times表示，故选C。 -
第9题：
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，"I generally play alone or keep to myself" and，"I am often unhappy or tearful".They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise."Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.What is the passage mainly about?AIt describes the reasons people watch television.
BIt reports the findings of a scientific study.
CIt discusses ways to improve children's physical health.
DIt advises parents on raising their children.
正确答案： A解析： -
第10题：
单选题Why does the woman think it is good that the test will be early?AThey will have time to study for it.
BAfternoons are bad times for tests.
CAfter it, they can study for other exams.
正确答案： B解析：
女孩提到早考完测验也很好，因为After we have finished with it, we can concentrate on our other finals.故C项正确。 -
第11题：
单选题If the set S is composed of the following numbers {99, 100, 100, 105, 106, 116, 123}, which of the following is largest?AThe average (arithmetic mean) of set S
BThe median of set S
CThe mode of set S
DThe range of set S
EThe standard deviation of set S
正确答案： B解析：
根据公式可知，A项S数集的平均数=107，B项S数集的中位数=105，C项S数集的众数=100，D项S数集的极差=24，E项S数集的标准差≈9，故本题选A项。 -
第12题：
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，I generally play alone or keep to myself and，I am often unhappy or tearful.They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise.Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.How did the researchers carry out the study?ABy reviewing children's records online.
BBy interviewing children's parents.
CBy watching children in their home.
DBy asking children questions.
正确答案： C解析： -
第13题：
Which of the following conditional clause is a real condition________?A.If I had time, I would study French
B.If I have time, I will study French
C.If I had had time, I would have studied French
D.If I should have time, I would study French
答案：B
解析：条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设或实际可能性不大的甚至完全不可能发生的情况，故采用虚拟语气。
A选项中，if+主语+一般过去时表示与现在事实相反，为虚拟语气；B选项中，if引导的是一个一般现在时的条件状语从句，为真实条件句；C选项中，if+主语+had done表示与过去事实相反，为虚拟语气；D选项中，if+主语+should do表示与将来事实相反，为虚拟语气。题干意为：下列条件句中那个是真实条件，所以答案选B。
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第14题：
C Too much TV-watching can harm children’s ability to learn and even reduce their chances of getting a college degree, new studies suggest in the latest effort to examine the effects of television on children.
One of the studies looked at nearly 400 northern California third-graders. Those with TVs in their bedrooms scored about eight points lower on math and language arts tests than children without bedrooms TVs.
A second study, looking at nearly 1,000 grown-ups in New Zealand, found lower education levels among 26-year-olds who had watched lots of TV during childhood. But the results don’t prove that TV is the cause and don’t rule out that already poorly motivated youngsters(年轻人)may watch lots of TV.
Their study measured the TV habits of 26-year-olds between ages 5 and 15. Those with college degrees had watched an average of less than two hours of TV per weeknight during childhood, compared with an average of more than 2½ hours for those who had no education beyond high school.
In the California study, children with TVs in their rooms but no computer at home scored the lowest, while those with no bedroom TV but who had home computers scored the highest.
While this study does not prove that bedroom TV sets caused the lower scores, it adds to accumulating findings that children shouldn’t have TVs in their bedrooms.
第64题：
According to the California study, the low-scoring group might____________.
A. have watched a lot of TV
B. not be interested in math
C. be unable to go to college
D. have had computers in their bedrooms
正确答案：A
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第15题：
He works ten hours a day, makes more than US $ 98000 a year, doesn′t 16 to take holidays, dresses 17 he pleases. He′s 18 been happier and is looking for another job. This 33-year-old white, university-educated person is the typical Internet worker, according to a study by the Industry Standard, a San Francisco-based news magazine.
There is also a reasonable chance that his employer will arrange his dry cleaning,19 him to 20 his dog to work, offer him flee massages and give him stock options. And he still thinks people in other 21 are doing 22 .
The typical worker, it appears, not only enjoys an income about 23 the national average but also enjoys himself. At present 2.5 million people 24 by Internet firms in the US. The 25 of the study give plenty of reasons 26 so many people think the grass is greener in Silicon Valley.
27 after tech-stocks sharply 28 in April, 29 many start-ups, there is still mood of enthusiasm and special advantage among those still employed. So what 30 52 percent of them "very happy"? "Demanding work" is given as the main reason and "salary" is 31 close 32 . Those questioned in the study also listed working weekends and 33 holidays as signs of the pleasure of the workplaces.
Only 13 percent were paid for 34 hours work while 14 percent put more than 12 hours work on an average day. "It wasn′t all about 35 ." wrote Mary Ann Thompson in the introduction to the study, "It was fun."
第（23）题选A.third times
B.third time
C.three times
D.three time答案：C解析：考查倍数的表达方式。这里表示他的工资是全国平均水平的三倍。“三倍”用three times表示，故选C。 -
第16题：
If you use your commute to catch up on work email, that time "should be counted as part of the working day," according to a new study by researchers who analyzed thousands of commuters'online habits." If travel time were to count as work time, there would be many social and economic impacts." said Juhet Jain, one of the academics from the University of the West of England who surveyed several thousand commuters on trains in and out of London.
"Most respondents expressed how they consider their commute as time to 'catch up' with work, before or after their traditional working day," according to a summary of the study.“This transitional time also enabled people to switch roles, for example from being a parent getting the kids ready for 3 school in the morning to a business director during the day " The study quotes a working mother named Katheryn saying. "It's really important to my sanity that I can get work done on the tram. I am a busy mum and I rely on that time, so I can get things done”Another commuter, Andrew, told the researchers.'“It's dead time in a way so what it allows me to do is finish stuff and not work in the evenings." The study notes that while work rules vary around the world, some commuters in Norway are already "able to count travel time as part of their working day”
The findings on workers' use of smartphones and other devices to stay plugged in highight the importance of providing Wi-Fi to commuters, according to the academics, who presented their study at the Royal Geographical Society. To ollet the data, they focused on two train lines that boosted the amount of free Wi-Fi they offered. On the Birmingham to London line, 60 percent of commuters connected to the enhanced network. The results hint at what are likely to be increasingly complicated work-life discussions, in which employees and their bosses debate what qualifies as "work" and where the line between personal and professional time should be drawn. Discussing the results in a news release, Jain said, "It may ease commuter pressure on peak hours and allow for more comfort and flexibility around working times. However, it may also demand more survillance and accountability for productivity."
In addition to potential ramifications for mass transit that the British researchers highlighted,the idea of claiming commuting time on the clock could also appeal to workers who use other means of travel. Take, for instance, people who rely on ride. share companies to get to their jobs. And the discussion seems certain to widen in the near future, to inc lude a looming wave of self-driving cars that - in theory, at least -promises to free up more travel time for drivers.
As for rail commuters, the researchers said their work shows it s important that trains "“ffer a good working environment including tables , power。space and good continuous connectivity for internet and phone calls"
what is the author' s attitude towards the study ?
A、neutral
B、critical
C、ndifferent
D、biased答案：A解析：态度题。首先确定是作者的态度，重点读首尾段，和每段的首尾句。首先排除选项C和D,如果作者对某一现象毫不关心，并且带有偏见，那就不会写这么长的文章了。根据文章，可以得知作者的态度是中立的。 -
第17题：
资料：The increasing amount of personal information that can be collected by computer programs that track how people use Facebook has been revealed by an extensive academic study.
Such programs can show undisclosed private information such as Facebook users' sexuality, drug-use habits and even whether their parents separated when they were young, according to the study by the University of Cambridge academics.
In one of the biggest studies of its kind scientists from the university’s team and a Microsoft-funded research center analyzed data from 58,000 Facebook users to predict traits and other information that were not provided in their profiles.
The algorithms were 88 per cent accurate in predicting male sexual orientation, 95 per cent for race and 80 per cent for religion .And political leanings, personality
types and emotional stability were also predicted with accuracy ranging from 62-75 per cent.
The study highlights growing concerns about social networks and how data trails can be mined for sensitive information even when people attempt to keep information about themselves private ：Less than 5 per cent of users were connected with explicitly gay groups.
Michal Kosinksi ，one of the report’s authors told the Financial Times that the university’s techniques could easily be replicated by companies to inter personal attributes a person did not wish to share such as sexual orientation or political views:”We used very simple and generic methods :Marketing companies and internet companies could spend much more time and resources and hence get much higher accuracy than we did.
The report also revealed some unexpected correlations such as people who liked ‘curly fries’ having higher IQs while those Who like Facebook’s “Sliding on Floors With Your Socks On”page were unlikely to use drugs.
why does the author mention “religion”in paragraph four?A.To show the importance of it in people’s life
B.To support that people can collect information from Facebook
C.To give an example of the information predicted in the study
D.To illustrate the percentage of people with religious belief答案：C解析：本题考查的是细节理解
【关键词】religion；paragraph four
【主题句】第4自然段The algorithms were 88 per cent accurate in predicting male sexual orientation,95 per cent for race and 80 per cent for religion。研究结果为，预测男性性别取向的正确率是，预测种族的正确率是，预测宗教信仰的正确率是。
【解析】题目意为“第四段中作者提到religion（宗教信仰）的目的是什么？”选项A意为“为了显示宗教在人们生活中的重要性”，选项B意为“为了支持人们从脸书上搜集信息的观点”，选项C意为“为了举例说明研究中预测的信息”，选项D意为“为了说明有宗教信仰的人所占的百分比”，根据上下文， -
第18题：
根据以下材料，回答题
He works ten hours a day, makes more thanUS $ 98000 a year, doesn′t 16 to take holidays, dresses 17 he pleases. He′s 18 been happier and is looking foranother job. This 33-year-old white, university-educated person is the typical Internetworker, according to a study by the Industry Standard, a San Francisco-basednews magazine.
There is also a reasonable chance that hisemployer will arrange his dry cleaning,19 him to 20 his dog to work, offer him fleemassages and give him stock options. And he still thinks people in other 21are doing 22.
The typical worker, it appears, not onlyenjoys an income about 23 the national average but also enjoys himself.At present 2.5 million people 24 by Internet firms in the US, The 25 ofthe study give plenty of reasons 26 so many people think the grass isgreener in Silicon Valley.
27 after tech-stoeks sharply 28 in April,29 many start-ups, there is still mood of enthusiasmand special advantage among those still employed. So what 30 52 percent of them "veryhappy" "Demandingwork" is given as the main reason and "salary" is 31 close 32 .
Those questioned in the study also listedworking weekends and 33 holidays as signs of the pleasure of theworkplaces.
Only 13 percent were paid for 34hours work while 14 percent put more than 12 hours work on an average day."It wasn′t all about 35." wrote Mary Ann Thompson in theintroduction to the study, "It was fun."
A.where
B.what
C.how
D.why答案：D解析：考查关系词。句意为“研究结果足以表明为什么那么多人认为硅谷的草地比他处更绿”，所以用关系副词why引导该定语从句．修饰先行词reasons。 -
第19题：
Directions: Some people think that all university students should study whatever they like. Others believe that they should only be allowed to study subjects that will be useful in the future, such as those related to science and technology. What′s your view about what subject university students should study? You are required to write a composition within 180 words, but no less than 150 words.答案：解析：People have different views about what subject university students should study, whether the one they like or only the one that will be useful in the future. People who believe students should only study subjects that will be useful in the future list several reasons. First, university courses like medicine, engineering and information technology can provide more job opportunities, career progression, better salaries, and therefore an improved quality of life for students who take them. Second, those subjects play the major role in new inventions, economic growth, and the society' s greater future prosperity. As far as I am concerned, university students should be free to choose their preferred subjects. In my opinion, students can study well if the learning content caters to their interest. Besides, the creative thinking patterns behind some theoretical subjects have potential value. In this sense, more students of art, history and philosophy are needed. In conclusion, although it might seem sensible for students to focus only on the most useful subjects, I personally assert that they have the right to study whatever they like. -
第20题：
In the course of time， the study of language has come to establish close links with other branches of s（） studies， such as sociology and psychology.
social
略 -
第21题：
单选题Which of the following is TRUE according to Donna’s letter?AThe best time to study is from 10 pm to 1 am.
BWalking outside can make you remember more.
CIt’s good to tell a study partner about your feeling.
DIt’s necessary to have a rest for 15 to 20 minutes an hour.
正确答案： C解析：
由“建议1”可排除A项；由“建议2”可排除B项；选项D 短文中没提到，故可排除。根据第4条建议可知选项C正确。 -
第22题：
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，I generally play alone or keep to myself and，I am often unhappy or tearful.They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise.Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.What information can we get about the University of Bristol study?AThe results of it have been published.
BAll kids who take part in the study had an interview.
CThe questionnaires of it contained five questions.
DIt was done by an elementary school.
正确答案： A解析： -
第23题：
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，"I generally play alone or keep to myself" and，"I am often unhappy or tearful".They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise."Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.Which of the children behavior below leads to the highest risk of the mental problems, according to the University of Bristol study?APlaying computer every day.
BWatching TV 3 hours per day.
CDoing few physical activities.
DOwning few friends.
正确答案： A解析：