Mr．Li as a physics teacher for ten years in our school.and now is Party secretary-general of our city．( )A．worksB．workedC．had workedD．has worked 题目和参考答案——青夏教育精英家教网—

题目内容

4．Mr．Li _____as a physics teacher for ten years in our school，and now is Party secretary-general of our city．（　　）

A．

works

B．

worked

C．

had worked

D．

has worked

分析李老师在我们学校做了十年的物理教师，现在是我市的党委书记．

解答答案：B
根据句意"…and now is Party secretary-general of our city…现在是我市的党委书记"可知，李老师现在不是物理老师了，前面的句子表达的应该是他过去是物理老师，所以要使用一般过去时．故选B

点评做本题时，要注意一般过去时与现在完成时的区别．一般过去时讲的只是发生在过去的动作或状态；而现在完成时表示发生在过去的动作或状态，持续到了现在，也有可能延续到将来；强调的是对现在造成的影响或结果．

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15．Multitasking
People who multitask all the time may be the worst at doing two things at once，a new research suggests．The findings，based on performances and self-evaluation by about 275college students，indicate that many people multitask not out of a desire to increase productivity，but because they are easily distracted （分心） and can't focus on one activity．And"those people turn out to be the worst at handling different things，"said David Sanbonmatsu，a psychologist at the University of Utah．
Sanbonmatsu and his colleagues gave the students a set of tests and asked them to report how often they multitasked，how good they thought they were at it，and how sensation-seeking （寻求刺激） or imperative （冲动）
they were．They then evaluated the participants'multitasking ability with a tricky mental task that required the students to do simple mathematical calculations while remembering a set of letters．
Not surprisingly，the scientists said，most people thought they were better than average at multitasking，and those who thought they were better at it were more likely to report using a cellphone while driving or viewing multiple kinds of media at once．But those who frequently deal with many things at the same time were found to perform the worst at the actual multitasking test．They also were more likely to admit to sensation-seeking and impulsive behavior，which connects with how easily people get bored and distracted．
"People multitask not because it's going to lead to greater productivity，but because they're distractible，and they get sucked into things that are not as important．"Sanbonmatsu said．
Adam Gazzaley，a researcher at the University of California，San Francisco，who was not a member of the research group，said one limitation of the study was that it couldn't find out whether people who start out less focusedtoward multitasking or whether people's recognizing and understanding abilities change as a result of multitasking．
The findings do suggest，however，why the sensation-seeker who multitask the most may enjoy risky distracted driving．"People who are multitasking are generally less sensitive to risky situations．"said Paul Atchley，another researcher not in the group．"This may partly explain why people go in for these situations even though they're dangerous．"

67．The research led by Sanbonmatsu indicates that people who multitaskD．
A．seek high productivity constantly
B．prefer handling different things when getting bored
C．are more focused when doing many things at a time
D．have the poorest results in doing various things at the same time
68．When Sanbonmatsu and his colleagues conducted their research，theyA．
A．assessed the multitasking ability of the students
B．evaluated the academic achievements of the students
C．analyzed the effects of the participants'tricky mental tasks
D．measured the changes of the students'understanding ability
69．According to Sanbonmatsu，people multitask because of theirC．
A．limited power in calculation
B．interests in doing things differently
C．inability to concentrate on one task
D．impulsive desire to try new things
70．From the last paragraph，we can learn that multitaskers usuallyC．
A．drive very skillfully
B．go in for different tasks
C．fail to react quickly to potential dangers
D．refuse to explain the reasons for their behavior．

12．我们非常关心食品质量，因为它与每一个人的健康都息息相关．（concern）Weareallconcernedabout thefoodquality becauseitiscloselyrelatedtoeveryone'shealth．．

19．---Such a mistake could have been avoided．
---Unfortunately，he the mistake again and again．（　　）

	A．	repeated		B．	would repeat
	C．	had repeated		D．	would have repeated

1．Decision-making under Stress
A new review based on a research shows that acute stress affects the way the brain considers the advantages and disadvantages，causing it to focus on pleasure and ignore the possible negative （负面的） consequences of a decision．
The research suggests that stress may change the way people make choices in predictable ways．
"Stress affects how people learn，"says Professor Mara Mather．"People learn better about positive than negative outcomes under stress．"
For example，two recent studies looked at how people learned to connect images（影像） with either rewards or punishments．In one experiment，some of the participants were first stressed by having to give a speech and do difficult math problems in front of an audience； in the other，some were stressed by having to keep their hands in ice water．In both cases，the stressed participants remembered the rewarded material more accurately and the punished material less accurately than those who hadn't gone through the stress．
This phenomenon is likely not surprising to anyone who has tried to resist eating cookies or smoking a cigarette while under stress-at those moments，only the pleasure associated with such activities comes to mind．But the findings further suggest that stress may bring about a double effect．Not only are rewarding experiences remembered better，but negative consequences are also easily recalled．
The research also found that stress appears to affect decision-making differently in men and women．While both men and women tend to focus on rewards and less on consequences under stress，their responses to risk turn out to be different．
Men who had been stressed by the cold-water task tended to take more risks in the experiment while women responded in the opposite way．In stressful situations in which risk-taking can pay off big，men may tend to do better，when caution weighs more，however，women will win．
This tendency to slow down and become more cautious when decisions are risky might also help explain why women are less likely to become addicted than men：they may more often avoid making the risky choices that eventually harden into addiction．

64．We can learn from the passage that people under pressure tend toA．
A．keep rewards better in their memory
B．recall consequences more effortlessly
C．make risky decisions more frequently
D．learn a subject more effectively
65．According to the research，stress affects people most probably in theirA
A．ways of making choices B．preference for pleasure
C．tolerance of punishments D．responses to suggestions
66．The research has proved that in a stressful situation，D．
A．women find it easier to fall into certain habits
B．men hav e a greater tendency to slow down
C．women focus more on outcomes
D．men are more likely to take risks．

8．Growing up in rural Malawi，Africa，William Kamkwamba learned to accept that life was hard．
He lived with his parents and seven sisters in a small clay house without electricity or running water．Like most boys in his village，William was expected to assist his parents on the family farm，as well as keep up with his school work．Each night，like most Malawians，his family went to bed early because the kerosene oil they needed to light the lamps was costly．
A terrible drought in 2000 left many Malawians hungry，and William's family was no exception．
In 2003 at the age of 13，William and many other children were forced to drop out of school when their parents could no longer afford his schooling．William had to work even harder to help his family，but he wasn't ready to give up his education．He went to the local library and took out some books to study．One book，called Using Energy，sparked William's interest in science and gave him an idea that significantly changed his future．
In the book，William found a picture of a windmill （风车），and a brief description of how it could be used to generate electricity from wind．He knew that there was plenty of wind in his village，and realized that if he could build a windmill like that，he could give his family and the．people in his village a much better life．There was just one problem．The book didn't explain how to build a windmill，and neither did any of the other books in the library．
What happened over the next year demonstrated William's incredible ambition and determination．He began to collect any kinds of materials he thought could be useful-scraps of wood，broken bicycles，old shoes-and started to build a windmill next to his family's house．He endured many challenges and failures．Other people in his village called him crazy and said his idea would never work．Finally，at the age of 14，William completed his first windmill．When they saw electric lights and heard the sound of music on the radio coming from William^house，the village people came running．He had done it．William Kamkwamba had found a way to capture the wind．
Kamkwamba's autobiography （自传），The Boy Who Harnessed the Wind^tells the story of how the rest of the world came to know about his achievements．With the help of international supporters，his village now has clean running water，solar powered lighting，and electric power．As a result of his actions，Kamkwamba was invited to study engineering at Dartmouth College，one of the top-ranking universities in the U．S．He also travels the world and gives talks about how he made his dream a reality．

56．William went to the local library becauseC．
A．he wanted to find some materials for his invention
B．it was his favorite way to kill time and relax
C．he wanted to continue his education
D．it was believed to be a way to change his fate
57．Paragraph 3is mainly aboutB．
A．why the windmill is so attractive
B．how William got inspired by a hook
C．why William decided to continue his education
D．how a windmill works to produce electricity
58．The living conditions in William's village are much better now mainly because
D
A．William has helped build a power station
B．the villagers are greatly encouraged by William
C．William、autobiography is locally popular
D．it has received much outside help
59．William Kamkwamba can be best described asA．
A．ambitious and determined
B．honest and forgiving
C．brave and patient
D．reasonable and humorous
60．What is the message conveyed in the passageC？
A．We should strike while the iron is hot．
B．A good beginning makes a good end．
C．One who lives his dream can make a difference．
D．You'd better not put all the eggs in one basket．

5．I might fail，but _____I insist on doing it．I never lose heart．（　　）

6．The twins look alike．It is very hard to tell one from _______．（　　）

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