填空题Conservationists are trying to save primary forests because they have much higher levels of biodiversity.____
题目
相似考题
参考答案和解析
根据题干信息“primary forests”和“trying to save”可以定位到F段“Primary forests usually have much higher levels of biodiversity than secondary ones, which is part of the reason conservationists are trying to save old growth.”，故匹配段落为F段。
更多“Conservationists are trying to save primary forests because”相关问题
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第1题：
Which the following statements is TRUE according to the passage?
A. The United Nations says about 50 million acres of rain forests are cut down every year.
B. Luckily people and the mass media all paid special attention to the depletion of rain forests.
C. The author thought the oceans' survival is questionable.
D. People have stopped cutting down rain forests because of the opposition of most people.
正确答案：B此题为三误一正的细节题。见第二段的第一句Unlike some environmental issues，rain forests’depletion has fortunately received significant public and media attention。
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第2题：
Mary is looking for the book she lost yesterday.A:trying to find
B:trying to read
C:trying to buy
D:trying to borrow答案：A解析：look for“寻找”。find是瞬间动词，例如：Many people cannot find work.许多人找不到工作。try to find“试图找到”，与look for的意思相近。read“阅读”, buy“购买”,borrow“借”。 -
第3题：
The doctors tried their best to save the patient's life,__failed.A.or
B.so
C.but
D.because答案：C解析：此题考查连词的使用。根据句意，上下文是转折关系，所以选C。医生们尽力挽救，但还是失败了。 -
第4题：
多选题Because free hydrogen does not exist in nature, it cannot be ______ a primary energy source, as coal or oil can.Aborne in mind
Btaken into account
Cconcerned with
Dconsidered
Eremarked upon
Fthought of as
正确答案： C,B解析：
句子的意思大致是：由于大自然中不存在游离氢，因此不能把氢气，像煤和石油一样，看作是主要能源。因此，选项中表达“看作，当作”含义的词语为D considered和F thought of as。A记住，考虑到；B考虑到，重视，体谅；C关心；与…有关；E谈论，评论。 -
第5题：
单选题View the Exhibit and examine the structure of the EMP table. You executed the following command to add a primary key to the EMP table： ALTER TABLE emp ADD CONSTRAINT emp_id_pk PRIMARY KEY （emp_id） USING INDEX emp_id_idx； Which statement is true regarding the effect of the command？（）AThe PRIMARY KEY is created along with a new index.
BThe PRIMARY KEY is created and it would use an existing unique index.
CThe PRIMARY KEY would be created in a disabled state because it is using an existing index.
DThe statement produces an error because the USING clause is permitted only in the CREATE TABLE command.
正确答案： D解析： 暂无解析 -
第6题：
单选题According to Paragraph 1, the tamarin story can be retold chronologically as follows:Ⅰ. Tamarins were declared extinct.Ⅱ. No one saw a tamarin in the wild.Ⅲ. Tamarins used to live in forests in southern Brazil.Ⅳ. The researchers have been doing everything they can to save tamarins.Ⅴ. Some researchers found by chance a small set of tamarins.AⅣ— Ⅱ —Ⅰ— Ⅲ—Ⅴ
BⅢ — Ⅰ —Ⅱ—Ⅴ— Ⅳ
CⅡ—Ⅰ— Ⅲ— Ⅴ— Ⅳ
DⅠ— Ⅱ— Ⅲ— Ⅳ—Ⅴ
正确答案： C解析：
本题是细节题。题干中的chronologically意为“按年代顺序排列”。第一段第三句提及Ⅰ.的内容，这是在1905年——l905年宣称他们(这里指绢毛猴)已灭绝；第四句提及Ⅱ.的内容，这是在1970年，直到l970年没有人再在野外见过黑脸狮狨猴；第三句提及Ⅲ.的内容，这是在1905年前，这些猴栖息在巴西东南部小片森林里的树上；最后一句提及Ⅳ.的内容，这是在Since that time，也即是二十世纪九十年代后，从那时起巴西的一些研究人员就设计绢毛猴的移民，尽他们的一切能力来挽救世界上最与众不同的灵长类；第五句提及Ⅴ.的内容，这是在二十世纪九十年代，一些巴西的研究人员发现了一小群与世隔离的天生绢毛猴散落在广阔的地域；所以按时间顺序分，Ⅲ—Ⅰ—Ⅱ—Ⅴ—Ⅳ应是正确答案，故选B。 -
第7题：
单选题You own a table called EMPLOYEES with this table structure: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE What happens when you execute this DELETE statement? DELETE employees; （）AYou get an error because of a primary key violation.
BThe data and structure of the EMPLOYEES table are deleted.
CThe data in the EMPLOYEES table is deleted but not the structure.
DYou get an error because the statement is not syntactically correct.
正确答案： C解析： 暂无解析 -
第8题：
单选题Night-shift workers often find it difficult to sleep in the morning because _____.Atheir internal clock will not allow them to
Bthey are often disturbed by morning visits
Cthey are not trying hard enough to do so
Dthey are too tired to go to sleep well
正确答案： D解析：
判断推理题。题目询问“夜班工人发现清晨难以入睡的原因是什么？”从文章倒数第三句“Night-shift workers often find it...”可知，难以入睡是因为身体的自然规律被打破，此时体内生物钟不允许睡觉。正确答案为A。 -
第9题：
填空题Conservationists are trying to save primary forests because they have much higher levels of biodiversity.____正确答案： F解析：
根据题干信息“primary forests”和“trying to save”可以定位到F段“Primary forests usually have much higher levels of biodiversity than secondary ones, which is part of the reason conservationists are trying to save old growth.”，故匹配段落为F段。 -
第10题：
单选题Madonna and Michael Jackson are not considered heroes because _____.Athey are popular only among certain groups of people
Btheir performances do not improve their fans morally
Ctheir primary concern is their own financial interests
Dthey are not clear about the principles they should follow
正确答案： C解析：
推论题。B项与第五段末句“Madonna and Michael Jackson are famous, but who would claim that fans find life more abundant”属于同义重述。 -
第11题：
填空题People have difficulty snapping negative loops of thinking because trying to think about something new in the brain is more difficult than keeping a built path.____正确答案： F解析：
根据题干信息“difficulty snapping negative loops of thinking”可以定位到F段“The pathway has been established and it’s just easier to continue following it than trying to think about something new and form a new connection in the brain.”，由于思维已经形成，保持它比在大脑中试着想象新的事情、形成新的连接更容易，故匹配段落为F。 -
第12题：
单选题Doctors give less importance to the communication between patients and doctors mainly because ______.Amodem medical instruments are used
Bthey can cure more diseases and save more lives
Cthey have much more medical experience than before
Dthey are too busy to have time to talk with patients
正确答案： A解析：
推理判断题。由the communication between patients and doctors定位到文章第二段分别介绍了这种医疗仪器的正面和负面影响，题干部分属于负面影响。 -
第13题：
Examine the data in the EMPLOYEES table.On the EMPLOYEES table, EMPLOYEE_ID is the primary key. MGR_ID is the ID of managers and refers to the EMPLOYEE_ID. The JOB_ID column is a NOT NULL column.Evaluate this DELETE statement:Why does the DELETE statement fail when you execute it?（）
A. There is no row with dept_id 90 in the EMPLOYEES table.
B. You cannot delete the JOB_ID column because it is a NOT NULL column.
C. You cannot specify column names in the DELETE clause of the DELETE statement.
D. You cannot delete the EMPLOYEE_ID column because it is the primary key of the table.
参考答案：C
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第14题：
根据下列内容，回答207-210题。
The makers of Europe's toilet paper and other household paper goods are contributing todeforestation by failing to offer consumers enough recycled products, conservationists said recently.
"Everyday about 270,000 trees are effectively flushed down the toilet or end up as garbagearound the world; such a use of the forests is both wasteful and unnecessary," said Duncan Poundof WWF, formerly known as the World Wildlife Fund.
According to a WWF study, the five biggest manufacturers of disposable paper products inEurope are Procter and Gamble, SCA, Kimberly Clark, Mesa Tissue and Georgia Pacific, whichcontrolabout 70 percent of European market. The vast majorityof their products contain"alarmingly low levels" of recycled fibers, it said.
That means that"virgin fibers" extracted from natural forests and tree plantations around theworld"end up as waste without the consumer's knowledge, ” the Switzerland-based internationalconservation group said in this communique.
"Consumers have no idea that they may be threatening the world's forests when they go to thebathroom, "said Pollard, who heads the WWF program on European forests.
"The manufactures claim that retailers mainly want non-recycled products because that is whatconsumers choose." the WWF said.
"It's a myth that recycled tissue products are not of good quality." Pollard said.
The European tissue business is worth around 8.5 billion euros(10 billion dollars) annuallyand accounts for 26 percent of global consumption.
Each European uses on average 13 kilos of paper products per year, the WWF said.
The WWF has asked the companies to better inform consumers about how much of theirhousehold paper goods are made with recycled fibers and to advise them to buy bounds of recycledtoilet paper and tissues.
What does the underlined part"end up as waste without the consumer's knowledge" mean ?__________A.Consumers waste "virgin fibers" because they lack knowledge
B.Consumers don't waste "virgin fibers" without knowledge
C.Consumers stopped using "virgin fibers" as waste because of knowledge
D.Consumers waste "virgin fibers" without know it答案：D解析：根据文章第五段Pollard说的话，即“Consumers have nO idea that they may be threateningthe world’s forests when they go to the bathroom，”可知，是因为消费者自身没有意识到自己行为的后果，所有他们才这样浪费“原生纤维”。故选D。 -
第15题：
You are Cisco Channel Partner Account Manager. You need to explain why the banking industryis ready to take advantage of an integrated network infrastructure. What is your explanation？（）
- A、 Because Banks are still connecting via dial-up.
- B、 Because Banks need to save cost.
- C、 Because Banks find themselves with an obsolete branch infrastructure.
- D、 Many banks need back-office process streamlining.
正确答案:C -
第16题：
单选题You own a table called EMPLOYEES with this table structure: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE What happens when you execute this DELETE statement? DELETE employees; （）AYou get an error because of a primary key violation.
BThe data and structure of the EMPLOYEES table are deleted.
CThe data in the EMPLOYEES table is deleted but not the structure.
DYou get an error because the statement is not syntactically correct.
正确答案： B解析： 暂无解析 -
第17题：
单选题Tamarins lost the paradise of their tree-bound niche mainly because the Portuguese __________.Acut down trees to make rooms of the houses
Bcleared the forests to set up cities and farms
Cdeforested some regions for playgrounds
Dhunted the most distinctive monkeys
正确答案： B解析：
本题是细节题。第三段第一句讲到：不幸的是，葡萄牙人抵达巴西后开始清除森林以便能够腾出空地修建里约热内卢（巴西的城市）、定居地和农田，绢毛猴赖以生存的生活环境就开始消失了。(Unhappily for the lion tamarins，their tree-bound niche began to disappear after the Portuguese landed in Brazil and began clearing forest to make room for Rio de Janeiro，the settlements and farms.)，因此答案为B。 -
第18题：
单选题Why do students like the self-protection lesson?①Because there are no tests.②Because the lessons are boring.③Because they can learn how to save lives.④Because they can know how to stop danger before it happens.A①②
B②③
C①②④
D①③④
正确答案： D解析：
【文章大意】本文是一篇说明文。文章主要介绍了在几种紧急危险情况下的一些自我保护的措施。
细节理解题。由第一段最后两句“Students like this lesson because there are no exams or boring classes. And they can learn how to save lives and know how to stop danger before it really happens.”可知，①③④ 符合文意。 -
第19题：
单选题You are Cisco Channel Partner Account Manager. You need to explain why the banking industryis ready to take advantage of an integrated network infrastructure. What is your explanation？（）ABecause Banks are still connecting via dial-up.
BBecause Banks need to save cost.
CBecause Banks find themselves with an obsolete branch infrastructure.
DMany banks need back-office process streamlining.
正确答案： D解析： 暂无解析 -
第20题：
单选题Some people may disagree with the author on his method because they think _____.Ait is not practical for adults
Bit is already out of date
Cit isn’t a primary method
Dit fails to cultivate creativity
正确答案： A解析：
推断题。作者在文章第三段段首提到了自己的这种练习方法，紧接着在第三句表明，也许会有人大声反对说：“但是这种方法并不能培养人的独创性！”。选项D中的cultivate creativity是对原文中to be original的同义替换。A、B、C三项在文中都没有提及，可排除。故答案为D项。 -
第21题：
单选题The author cites the dog as an example of artificial selection because of all the following statements EXCEPT that ______.ADogs are domestic animals
BThe dog is one of nature’s survivors
CBreeders register dogs to obtain a pedigree
DHumans have been the primary agents in dog evolution
正确答案： B解析：
根据文章内容可知人工选择会栽培植物、驯化动物，并且第三段末句指出通过人工选择人们充当了agents of evolution。可见人们对狗进行人工选择时也符合这两方面内容，因此A、D项正确。C项内容在末段提及。由于狗是人工选择的结果，因此就不可能是自然选择的幸存者，故B项表述有误。 -
第22题：
单选题In North America, ______.Aconsumers cut down 2 and half million hectares of forest each year.
Bthe forest service spends a huge sum of money trying to repair the damage caused by consumers.
Cdeforestation has cause huge amount of loss.
Dfires have caused steep loss to the forests.
正确答案： A解析：
录音中指出“今年以来，北美大概有250万公顷的森林被大火吞噬”，接着描述了大火造成的巨大的经济损失，因此选项D为正确答案。
【录音原文】
So far this year, some 2 and half million hectares (6 m acres) of North American forest have been consumed by fire. And several fires are still blazing in the west of the continent. The United States’ Forest Service reckons it will spend around $900m in 2003 on putting fires out, and the damage such fires have caused probably cost several times that figure. -
第23题：
单选题Some people may disagree with the author on his method because they think______.Ait is not practical for adults.
Bit is already out of date.
Cit isn’t a primary method.
Dit fails to cultivate creativity.
正确答案： C解析：
推断题作者在文章第三段段首提到了自己的这种练习方法，紧接着在第三句表明，也许会有人大声反对说：“但是这种方法并不能培养人的独创性！”。选项D中的cultivate creativity是对原文中to be original的同义替换。A、B、C三项在文中都没有提及，可排除。故答案为D项。 -
第24题：
单选题What happens because of the traditional fire-fighting practices in the USA?AThere are fewer wildfires.
BTrees and grass become thicker.
CThe weather becomes warmer and drier.
DSunlight reaches the ground to help forests.
正确答案： B解析：
细节理解题。文章第三段提到美国传统的消防方式能很快地将火扑灭，使得很多森林没有被烧毁，植被茂密，保存完好。所以，此题的正确答案为B项。