题目列表(包括答案和解析)
Holding a cell phone against your ear or stalling it in your pocket may be hazardous to your health．
This paraphrases a warning that cell phone; manufacturers include in the small print that is often tossed aside when a new phone is purchased．Apple, for example, doesn't want iP hones to come closer to you than 1．5 centimeters; Research In Motion, Blackberry's manufacturer, recommends 2.5 centimeters．
If health issues arise from cell phone use, the implications are huge．Voice calls - Americans chat on cell phones 2．26 trillion minutes annually - generate $109 billion for the wireless carriers．
Devra Davis, an epidemiologist who has worked for the University of Pittsburgh, has published a book about cell phone radiation, "Disconnect." The book surveys scientific research and concludes the question is not settled.
Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
"Most cancers have multiple causes," she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid. No studies have yet been completed on cell phone radiation and children, she says.
Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiofrequency radiation had damaged DNA in their brains.
Ms. Davis recommends using wired headsets or the phone's speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen.
1.We can infer from the passage that________．
A．Cell phone may do harm to our health if we hold it against our ear or store in our pocket
B．Devra Davis thinks that there are many factors contributing to cancer．
C．The increase in brain cancer in the young adults may have something to do with cell phone
D．Children are more likely to be affected by radiation
2.According to the passage, how could children avoid being hurt by cell phone radiation?
A．They can keep cell phones away from the abdomen．
B．They can send short massage instead of making phone calls directly．
C．They can pay more attention to the small print on the phone．
D．They should use more advanced cell phones．
3.From this passage we can learn that．________．
A．American cell phone manufacturers did not give any warning to their customers
B．American cell phone manufacturers benefit greatly from their products
C．Scientists have found the connection between brain cancer and ceil phone
D．Cell phone should be banned because of the increase in brain cancer
4.In which column can we most probably read this passage?
A．Advanced technology． B．Entertainment．
C．Science and life． D．Celebrity．
War, money and power are a few things that countries and people are concerned about. __1__ I agree that those things are important, I believe that everyone should start to __2__ more on a growing problem—global warming.
Global warming will not only __3__ our country and our generation, but also the entire __4__ and future generations. It is __5__ because the weather has been a lot warmer over the past few years, which __6__ the melting(融化) of the ice in the Antarctic. This will soon cause water levels to __7__ and flood parts of the world.
Many people ignore this problem because they feel __8__ they can't do anything about it and have more __9__ things to worry about. If we all __10__ so, then our ozone layer(臭氧层) will be __11__ and the planet will no longer be able to make life continue to exist. We should do our best to limit the use of our planet's __12__ resources(资源) and keep our air clean. __13__， future generations will suffer from our __14__.
Some might feel that they can't stop global warming from __15__. But if every single person does his or her part in keeping the air clean, then it will become a __16__ effort. Sure, there are some things that cause pollution and that we won't be able to __17__ change. This may include cars burning oil, but we can __18__ adjust some of these things. People can start carpooling, taking the bus, riding their bikes, or __19__ just walking.
If everyone takes __20__ now, I believe we can start seeing remarkable results within a few years.
1．A.When B．As C．How D．Though
2．A.depend B．focus C．hang D．remark
3．A.annoy B．interrupt C．affect D．confuse
4．A.world B．continent C．industry D．climate
5．A.failing B．completing C．changing D．occurring
6．A.lies in B．results in C．suffers from D．escapes from
7．A.reduce B．rise C．drop D．move
8．A.as if B．in case C．even though D．if only
9．A.popular B．suitable C．important D．difficult
10．A.do B．keep C．like D．find
11．A.protected B．strengthened C．destroyed D．surrounded
12．A.unlimited B．natural C．recycled D．industrial
13．A.Therefore B．Otherwise C．However D．Instead
14．A.illnesses B．failures C．decisions D．mistakes
15．A.continuing B．arriving C．improving D．disappearing
16．A.physical B．mental C．national D．worldwide
17．A.slightly B．fully C．hardly D．slowly
18．A.at least B．at most C．at first D．at last
19．A.yet B．even C．still D．thus
20．A.time B．turns C．action D．arms
Water costs money．In some places water is hard 16 ．What 17 when a town
has these problems？A small town in California found a happy 18 ．
Very 19 rain ever fell there．The town had no water 20 ．The water it used was 21 from a river 300 miles away．As more people 22 live in the town 23 water was needed．Now water 24 to be brought in from 600 miles away．All these cost 25 money．
The town 26 a plan．It found 27 to clean its “dirty” water．Once the cleaned water was reused 28 many ways．Five 29 lakes were built．Here people could swim and fish and go 30 ．They 31 have picnics in their new parks．Farmers had more water 32 their crops．New factories can be built，now that they have the promise of 33 ．
In most places，water is used and thrown 34 ．The town that saved 35 water has saved the town！
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While I studied at school, I felt great difficulty in learning my Latin translations. I was always very 36 in using a dictionary, and 37 it most difficult, while to other boys it seemed no 38 .
I formed an alliance(盟友) with a boy in the Sixth Grade. He was very clever and 39 read Latin as easily as English. My friend for his part was almost as 40 troubled by the English essays he had to write for the headmaster as I was 41 these Latin words. We agreed together that he should 42 me my Latin translations and that I should do his essays. The arrangement 43 wonderfully. The headmaster seemed quite 44 with my work, and I had more time to myself in the morning. On the other hand, once a week 45 I had to compose the essays of my friend. For several months no difficulty 46 , but once we were nearly caught out.
One afternoon, the headmaster 47 my friend to discuss one essay with him in a lively spirit. “I was interested in this 48 you make here. I think you might have gone further. Tell me 49 you had in your mind.” The headmaster continued in this 50 for some time to fear of my friend. However, the headmaster, not wishing to 51 an occasion of praise into 52 of fault-finding, finally 53 him go. He came back to me like a man who had had a very narrow 54 and I made up my mind to make every effort to study my 55 .
1.A. quick B. slow C. hard D. good
2.A. made B. got C. found D. left
3.A. trouble B. difference C. labor D. worry
4.A. might B. would C. should D. could
5.A. very B. little C. much D. few
6.A. for B. by C. in D. to
7.A. change B. take C. forgive D. tell
8.A. worked B. tried C. happened D. developed
9.A. angry B. satisfied C. frightened D. sad
10.A. or so B. or else C. as usual D. as far
11.A. became B. seemed C. lay D. appeared
12.A. called B. taught C. arranged D. sent
13.A. aim B. goal C. point D. opinion
14.A. why B. how C. which D. what
15.A. excitement B. way C. meaning D. disappointment
16.A. turn B. leave C. grow D. become
17.A. none B. one C. either D. some
18.A. ordered B. asked C. took D. let
19.A. surprise B. escape C. hope D. chance
20.A. reading B. writing C. translations D. essays
People need to relax and enjoy themse1ves．One way they can have a good time is to watch a baseball game or another sports event．Even thousands of years ago，groups of people gathered（聚集） to watch skilled athletes（运动员）．
Over 2000 years ago in Greece，certain days in the year were festival days．These were holidays when people stopped work and enjoyed themselves．They liked to watch athletes take part in races and other games of skill．
The most important festival was held every four years at the town of Olympia．It was held in honor of the Greek god Zeus（Zus）．For five days，athletes from all parts of the Greek world took part in the Olympic Games．At the Olympic Games，people could watch them box，run，jump and so on．There was a relay race between two teams of men in which a lighted torch（火矩）was passed from runner to runner．The Olympic Games were thought to be so important that cities which were at war with one another had to stop fighting．People were allowed to travel to the games safely．Thousands of people came to Olympia from cities in Greece and from her colonies（殖民地）in Africa，Asia and Italy．They met as friends to cheer their favorite athletes and to enjoy themselves．
What happened in Greece over 2000 years ago？
A．People stopped work and enjoyed themselves．
B．The cities there were often against one another．
C．People watched baseball games．
D．People didn’t go to any games at all．
What were those countries in Africa？
A．Friends． B．Enemies．
C．Colonies． D．Other cities．
What did people do at the games？
A．They fought． B．They just talked to friends．
C．They cheered for good athletes． D．They tried to find friends．
The best title for the story is“_____”．
A．Greece at War B．Together for the Games
C．Stop Fighting D．Sport
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