-I'm sure Tom will pass the exam．-I think so．He in the library every night over the last two months．( )A．studiesB．studiedC．is studyingD．has been studying 题目和参考答案——青夏教育精英家教网—

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14．-I'm sure Tom will pass the exam．
-I think so．He _________ in the library every night over the last two months．（　　）

	A．	studies		B．	studied
	C．	is studying		D．	has been studying

分析 -我确信汤姆会通过考试．
-我认为会通过．他在过去的两个月里每晚都在图书馆里学习．

解答答案：D 考查时态辨析．根据句中时间状语"over the last two months"，是指截止到现在的两个月里一直在学习，要用现在完成进行时态．A项是一般现在时态，指习惯性的动作；B项是一般过去时态，句中并没有过去的时间；C项是现在进行时态，强调现在正在发生的动作．

点评解答此类问题要了解各种时态的基本含义，并区别各种时态之间的差异，了解某些时态与一些特殊时间的固定用法，然后结合语境选择正确答案．

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5．Something has to be done to stop the rivers from being further polluted，_____？（　　）

2．AVATAR director James Cameron is now taking his camera deep into the ocean．
On March 25，he did alone submarine（潜水艇）dive nearly 11 kilometers down to the deepest place in the ocean，the Mariana Trench（马里亚纳海沟）in the westem Pacific．
Compared with the colorful forest of Avatar，the Mariana Trench is dark and icy cold Cameron became the first person to explore the deepest valley in the ocean since two men made a 20-minute trip there in 1960．
"I felt like I literally（真正地）had gone to another planet and come back"Cameron told the Associated Press after returning from his dive．"It's really the sense of isolation（与世隔绝），realizing how tiny you are down in this big，black and unexplored place．"
The filmmaker has spend the past few years working with his team of engineers to design and build the submarine called Deepsea Challenger．Unlike ordinary submarines，it is wrapped（包围）in cameras and lights so that Cameron can film the ocean from the inside．
The minute-long video that Cameron took while under the sea has been released by the National Geographic．There are no words in the video，but there is something fascinating about this extremely quiet and distantplace．Cameron said be was thankful that he had had the chance to go there．
"There had be a moment where I just stopped，and took it in，and said，‘This is where I am at the bottom of the ocean，the deepest place on Earth What does that mean？'"Cameron told reporters．
  The Mariana Trench was once thought to be of little interest to scientists．It was assumed that nothing could live under so much pressure and with so little light，But in recent years scientists have found creatures there like fish and shrimps （虾）that can resist the heavy pressure．They are also trying to figure out what role deep-sea trenches play in earthquakes．
    Cameron told the BBC that he does not want this dive to be one-time thing．He wants to use it as a platform for further ocean exploration
41．What is the point of the articleC
A．To draw public attention to the Mariana Trench．
B．To report on the successful launch of the"Deepsea Challenger"．
C．To inform readers of Cameron's adventure to the Mariana Trench．
D．To introduce Cameron's Latest video filmed in the Mariana Trench．
42．It can be inferred from the article that when Cameron reached the Mariana Trench，C．
A．he felt lonely and isolated
B．he was anxious about his safety．
C．he was astonished by what he experienced
D．he was excited that he had conquered the ocean
43．How does the"Deepsea Challenger"differ from ordinary submarines？A
A．It is specially designed for filming under the sea．
B．It is much heavier than an ordinary submarine．
C．It is more comfortable than an ordinary submarine．
D．It enables passengers to see the outside．
44．Which of the following statements about the Mariana Trench TRUE E according to the article？B
A．Cameron is the first person to have explored the Mariana Trench so far．
B．The role that deep-sea trenches play in earthquakes is still unknown．
C．Scientists don't think that the Mariana Trench is of much scientific value．
D．There are no creatures living in the Mariana Trench due to its peculiar conditions．
45．What can we know about James Cameron according to the passage？B
A．curious．        B．Challenging．
C．Imaginable．   D．Enjoyable．

9．Do you find yourself leading groups，or are you naturally more comfortable following others？Research published today shows that if you want to be a leader you're better off at the edges of a crowd，and not in the middle of the action．
In a series of experiments on crowd behaviour，a research team at the University of Leeds also found that successful leaders display more decisive behaviour，spending less time following others and acting more quickly than others in the group．
Lead researcher Jolyon Faria said："It was interesting to find that the most effective leaders remained on the edges of the group and attempted to lead from the front．You'd think leaders in the centre of the group should interact more often with others and therefore be more effective but here this wasn't the case．"
The research team asked groups of eight students to walk around continuously in a specified area and remain as a group without speaking or gesturing to one another．
One person was asked to move towards a target，while remaining a member of the group，without letting the others know that he or she was leading them to a target．In a second set of experiments，the students were told to follow"the leader"，but not told who the leader was．
In the second set of experiments，it was found that those leaders who remained on the edge of the group were able to move their group towards a target much more quickly than the leaders that chose to remain in the centre．
"We wanted to find out how people decided who to follow"said Faria．"We found that people were able to identify their leader by what position the leader takes，which helps explain how animals in groups-such as birds and fish-can be led by only a small minority，even when leaders don't signal their identity．"
"Our findings have illustrated a general principle behind group behaviour．This can also be applied to animal groups，something that could help in the management of the natural environment，as well as in the management of the urban environment．"
（Note：Answer the questions and complete the statements in NO MORE THAN TWELVE WORDS．）

78．The decisive behavior successful leaders display in a group is that theyspend less time following others and act more quickly．
79．According to Jolyon Faria，people tend to have the wrong belief that leaders shouldstay in the center of the group and interact more with others in order to be more effective．
80．We can learn from the passage that the fish leaders may lead the whole group byremaining on the edges of the group．
81．What does"a general principle"refer to in the last paragraph？People can identify their leader by the position he takes．

19．We all think that nuclear energy should be used as ______ weapons，and it should be used to benefit human beings．（　　）

6．---What's the model plane look like？
---The wings of the plane are _____ of its body．（　　）

	A．	more than the length twice		B．	twice more than the length
	C．	more than twice the length		D．	more twice than the length

3．I worked as a manager in a company for a number of years．I liked my job，and was doing well there，but our company was bought by a large company and most of the managers at our place lost their jobs．That was when I decided to do something I'd always wanted to do---become a freelance（自由撰稿的） writer．Changing professions has meant that my lifestyle has changed in a number of ways．
The main difference for me now is that I have a much more flexible（灵活的） schedule．I work about as much as I did before---between 45and 50hours a week---but my schedule is much less rigid （刻板的） than it used to be．Before，I worked from 8a．m．to 5p．m．every day，with a few extra hours on weekends．Now，however，I work when I feel like it．For instance，sometimes I work until midnight or 2a．m．，then sleep until noon．I really prefer this kind of schedule．It seems more natural to me．
I alse decided that it was about time I began to pay more attention to my health．While I was working as a manager，I never exercised．I already felt tired after work，so I just came home in the evening and watched TV．However，last year I joined a health club and began to do regular exercise．As a result I have lost over 10pounds and I feel much better．I've also started to eat more healthfully．I used to eat a lot of fast food，but now I do my own shopping．I buy lots of fruits and vegetables and cook them at home．
Of course，not all the changes have been that east．For example，I don't feel as safe financially as I used to．When I was working as a manager，I never worried much about money．I could always count on getting my paycheck every two weeks．Working freelance，I don't have a regular paycheck．So now I have to make sure that there's enough money until the next check arrives．
All in all，I really like my current lifestyle．Of course，that doesn't mean I'll never want to have a"regular"job．But for me，at least，it suits me．

71．The author decided to become a freelance writer becauseA．
A．he had always liked writing
B．he hadn't liked to work in the company
C．the boss didn't like him
D．the boss had another person to do the job
72．What is the main difference the job change brought to the author？C
A．That he doesn't need to work hard．
B．That he can earn much more money．
C．That he can change his schedule as he likes．
D．That he can watch TV as long as he likes．
73．What is his chief problem now？D
A．He has no job to do．
B．He must work harder than before．
C．His health has changed worse than before．
D．He has to worry about money．
74．At the end of the passage，the author indicates thatB．
A．he wants to have a regular job
B．he is not going to change his lifestyle in the near future
C．he wants to change his lifestyle in the near future
D．he must change his job to earn more money．
75．Which of the following is True according to the passage？B
A．The author likes to work in the company very much．
B．The author's lifestyle has changed in a number of ways．
C．The author doesn't like to do exercise．
D．The author does want to change his job to earn more money．

4．The newly built stadium for the next Olympic is the present one．（　　）

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

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