Are you a man or a mouse? When people ask this question they want to know whether you think you are a 36 person or a coward (懦夫). But you will never really know the answer to this question 37 you are tested in real life. Some people think they are brave, but when they come face to face with real 38 , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like heroes.
Lenny had always thought of himself as a 39 person. He got worried before examinations. He worried about his job and health. All he wanted in life was to be safe and healthy. Then on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny happened to see a woman in the ice-cold water. He did not feel afraid. He 40 very calm and did a very dangerous thing. He jumped into the Potomac, 41 to the woman, and kept her head 42 the water. Seventy-eight people died that day. Thanks to Lenny, it was not 43 .
When you are in a very dangerous situation and feel afraid, the body automatically(自动地) produces a chemical called adrenalin in the blood. With adrenalin in the blood system, you actually feel stronger and stronger and are 44 to fight or run away. However, when you are terrified greatly, the body can produce too much adrenalin. 45 this happens, the muscles become very hard. You are then paralyzed (麻木) with fear. This is why when we are extremely frightened, we sometimes say we are “petrified”. This word 46 a Greek word “petros”, which means “stone”. We are 47 frightened that we become stonelike.
A．brave B．real C．hard D．certain
A．when B．until C．after D．once
A．life B．question C．mouse D．danger
A．useful B．brave C．nervous D．terrible
A．had B．kept C．let D．made
A．went B．ran C．spoke D．swam
A．in B．under C．above D．from
A．an accident B．a mistake C．seventy-eight D．seventy-nine
A．ready B．unable C．afraid D．anxious
A．Before B．When C．Unless D．While
A．comes from B．comes back C．comes on D．comes across
A．such B．very C．so D．really
Do you know 21 languages there are in the world? There are about 1500, but many of them aren’t very 22 . English is one of the most important languages because many people 23 it, not only in England and America, 24 in other countries of world. About 375000000 people speak it 25 their own language, and another 375000000 use it as 26 language. It is 27 to say how many people are learning it. 28 boys and girls in schools are trying to do so.
Many English children study French. French is also a very important language. 29 children study German, Russian, Japanese and Chinese.
What is the best 30 to learn a language? We know that we all learnt 31 language well when we were 32 . If we learn a second language in the 33 way, it won’t seem so difficult. What does a small child do? It 34 what people say, and it tries to guess what it hears. When it wants something, it has to 35 it. It is using the language, 36 in it and talking in it all the time. If people use a second language 37 , they will learn it 38 .
In school, you learn to read, to write, to hear and to speak. It is best to learn all new words
through the 39 .You can read them, spell them and 40 them later.
A．how many B．what number C．a lot of D．so many
A．useful B．necessary C．important D．good
A．like B．use C．learn D．speak
A．but B．and C．also D．so
A．like B．with C．for D．as
A．foreign B．a second C．the second D．a special
A．easy B．again C．difficult D．best
A．Millions of B．Million of C．Millions D．Several million of
A．Some B．Other C．All D．Few
A．time B．way C．thing D．place
A．a foreign B．our mothers’ C．other’s D．our own
A．born B．children C．grown D．boys
A．same B．different C．useful D．good
A．does B．says C．listens to D．follows
A．ask B．want C．get D．ask for
A．some time B．sometimes C．all the same D．for the time
A．quickly B．soon C．freely D．hardly
A．mouth B．hands C．ears D．mind
A．listen to B．use C．love D．write
完形填空
Air travel makes some people very nervous． The crowds，the noise and flying itself can cause_______．But there are classes people can take to help them_______the fear of flying．And there is_______training for service dogs that suffer the same problem．
Service dogs almost never______the side of the people they care for．You will see them working on buses，trains and other public_______systems．But the busy environment found at an airport can_______even the best trained working dog．
People with disabilities depend on their dogs．They want the animals to safely_______them through security areas．They also need the dogs to remain_______on duty on the airplane，even when the flying is not_______．This takes special_______．The Air Hollywood K9 Flight School is one place where such help can be found．
The school has a piece of equipment that provides the sights，sounds and even the feel of an airplane in flight． Dog trainers say_______training is based on a simple rule: preparation． Dogs need to be exposed gradually and_______to the environment，to loud noises，to sounds and other dogs so that when this experience happens to them on a daily basis，they're able to act in a way that they're used to acting and that they don't get_______．
Dog owners who_______the training at Air Hollywood K9 Flight School say they now feel much more at ease about future_______．Their dogs also seem ready for take off．
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
第一节 完形填空 (共10小题；每小题2分，满分20分)
阅读下面短文，掌握其大意，然后从21～30题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
A robot called “Tiro” acts as master of ceremonies at a wedding for Seok Gyeong--Jae，one of the engineers who designed it，and his bride in Daejeon，130 kilometers south of Seoul．
“This is Tiro，master of ceremonies for today’s wedding，” the 21 --featuring a cone--shaped body, two arms and a dark--glassed 22 with eyes and a mouth of flashing lights---said in front of smiling guests．In a male voice，the robot 23 the couple to the crowd，let the couple bow to them and performed its 24___ duties．Manufacturer Hanool Robotics claims it is the first 25 in the world a robot has been 26 as master of ceremonies at a wedding．
After its marital（婚姻的）duties，Tiro---whose 27 was put at some 215，000 dollars---would be upgraded to perform various 28 functions，according to Hanool officials．Small other robots were also at the ceremony to 29 guests or give performances．
South Korean robots have also been given harder tasks to tackle. Last month it was 30 that a robot dubbed OFRO would be arranged as a school security guard in what was also claimed as a world first．
21．A．master B．designer C．engineer D．robot
22．A．forehead B．mind C．face D．form
23．A．introduced B．told C．pushed D．1ed
24．A．prepared B．arranged C．planned D．programmed
25．A．day B．time C．moment D．stage
26．A．used B．known C．considered D．created
27．A．wealth B．cost C．value D．charge
28．A．modem B．special C．old D．other
29．A．enjoy B．guide C．observe D．visit
30．A．reported B．believed C．suggested D．thought
语言知识及应用（共两节，满分45分)
第一节完形填空(共15小题；每小题2分．满分30分)
阅读下面短文，掌握其大意．然后从1—15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Carmen’s mother Maria had just survived a serious heart attack. But without a heart transplant(移植)her life was in constant 1 .
Both the mother and daughter knew that the chances were very small: finding a donor heart that 2 Maria’s blood type could take years. However, Carmen was determined to save her mother. She kept 3 hospitals all over the country.
Days stretched out. By Christmas, Maria had trouble 4 from one end of the room to the other. Carmen lost all hope. She fell into a 5 of the hospital, crying.
“Are you okay?” a man asked.
Carmen sobbed as she told the stranger her story. This middle-aged man was named Frank, whose wife, Cheryl, a tender and devoted mother of four lovely children, had been in hospital with a brain disease and wouldn’t 6 it through the night. Suddenly, an idea came to Frank’s mind. He knew Cheryl had always wanted to 7 something from herself. Could her 8 go to Carmen’s mother?
After reviewing the data, doctors 9 Frank that his wife’s heart was by some miracle a perfect fit for Carmen’s mother. They were able to 10 the transplant.
That cold night, when Cheryl was 11 dead, Frank came to knock at Maria’s door. She was 12 for Frank’s family as she had been doing every day recently. Though Maria had never met Frank before, they both felt a strange bond as they hugged and cried.
On New Year’s Eve, Carmen attended Cheryl’s 13 with Frank’s family, who were singing their favorite song “My heart will go on.”
One day later, on New Year’s Day, Maria 14 with Cheryl’s heart. Yes, Cheryl’s loving heart would go on, for it was 15 in another loving mother’s chest.
1. A. change B. danger C. disorder D. pain
2. A. matched B. replaced C. controlled D. cooperated
3. A. finding B. phoning C. touring D. interrupting
4. A. rolling B. running C. walking D. jumping
5. A. corner B. bed C. man D. nurse
6. A. put B. support C. pass D. make
7. A. save B. recycle C. donate D. separate
8. A. heart B. brain C. husband D. spirit
9. A. informed B. warned C. congratulated D. reminded
10. A. give up B. carry out C. search after D. put off
11. A. noticed B. predicted C. found D. declared
12. A. praying B. begging C. decorating D. singing
13. A. funeral B. operation C. performance D. anniversary
14. A. passed away B. woke up C. left behind D. dressed up
15. A. active B. alive C. necessary D. changeable
二：完形填空（共15小题，每小题1分，满分15分）
阅读下面的短文，掌握其大意。然后从21－35各题所给的四个选项中选出最佳选项，并在答题卡上将该项涂黑。
How to get rid of waste is a great problem for the world today. Waste must be treated 21 it does not become a danger to life. 22 , in some countries, waste from factories is still poured straight into rivers. People who use the water from one of these rivers often get 23 . The water may become so polluted that it 24 all the fish in the river. When these rivers finally reaches the 25 , it pollutes the ocean.
In many countries with 26 , human waste is piped directly into the sea without being dealt with. This is not 27 . Although the sea itself can break up the waste, beaches 28 become polluted. 29 scientists suggest people take the waste far out to sea in ships where the wind and waves break it down.
In 1989 an international law was passed to 30 people putting waste into the sea. It is now against the 31 to put anything into the sea nearby. Such rubbish as plastics may not be thrown 32 the sea anywhere. Other waste may be put into the sea, either 19 or more than 40 kilometers from land, 33 the nature of the materials.
The 34 of dealing with waste has become so great that several international organizations have been 35 to protect the world and control pollution.
21. A. as if B. so that C. ever since D. now that
22. A. Luckily B. Happily C. Unfortunately D. Hopefully
23 A. sick B. hope C. rich D. fun
24. A. raises B. feeds C. kills D. breaks
25. A. pool B. lake C. spring D. sea
26. A. grassland B. plains C. sea coasts D. deserts
27. A. safe B. useful C. dirty D. wrong
28. A. need B. may C. can’t D. needn’t
29. A. So B. Because C. Since D. But
30. A. stop B. suggest C. keep D. find
31. A. school B. organization C. factory D. law
32. A. out of B. away from C. into D. above
33. A. depending on B. feeding on C. leading to D. connecting to
34. A. news B. method C. problem D. disadvantage
35. A. punished B. set up C. refused D. called at
三、完形填空（共20小题；每小题1．5分，满分30分）
My classmates called me “the alien”, and they avoided me like the plague（瘟疫）. As a young boy, I 36 from a serious skin disease, which filled my arms with scars. The true 37 of my condition, however, was social: I lived a life of loneliness.
Doctors predicted that I would never fully recover, but my parents encouraged me to hope for the future, teaching me that any difficulty could be 38_. I therefore took an active role in fighting against my disease, and my health 39 greatly before I graduated. I realized that my personal 40_ had led to this improvement. I regained self-confidence and made many friends at school.
Years later, 41 my personal battle against disease, I learned a great deal about 42 by overcoming difficulties.
I joined the Culture Club as a Special Event Director. I 43 a group of six students in organizing various activities. I was the most advanced student among the group, so I considered myself the most capable. But I quickly learned my 44 . While preparing for our first presentation, I was 45 with my team members and often rejected their 46 . I performed most of their tasks myself, allowing them to 47 me only with small details. As a result, the presentation was not very successful. The setback 48 me, and I mentioned it to the club’s director. She _49 that she trusted my ability to succeed in the future. This comment filled me with 50 , for I realized that I had never trusted my own team members.
Although they were 51 in English, they had many valuable talents. I immediately 52 my policy. For our program, we had many meetings, which gave 53 to many good ideas. Most 54_, the atmosphere among us improved dramatically. We were crazy and eager to devote time to the program, _55 I learned what true leadership is.
My experiences undoubtedly improved my ability to handle challenging situations.
36．A．judged B．separated C．prevented D．suffered
37．A．pain B．sign C．value D．meaning
|
38．A．overlooked B．overcome C．overdone D．overestimated
39．A．developed B．removed C．increased D．improved第二节完形填空 (共20小题；每小题1.5分，满分30分)
阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项(A、B、C和D)中，选出最佳选项, 并在答题卡将该项涂黑。
Brenda was a young woman who was invited to go rock climbing. 36 she was very frightened, she went with her 37 to a cliff. She took hold of the rope and started 38 the face of that rock. She got to a place where she could take a breath. 39 she was hanging on there, the safety rope suddenly struck Brenda’s eye and 40 her contact lens(隐形镜片).
Well, here she was, on a rock face, with hundreds of feet below her and hundreds of feet 41 her. She began to get 42 , and she had to pray to the Lord to help her to 43 it.
When she got to the top, a friend 44 her eye and her clothing for the lens, but there was no contact lens to be found. She 45 across the mountains, thinking of that verse(诗句) that says, “The 46 of the Lord run backward and forward throughout the whole earth.” She thought, “Lord, you can see all these 47 . You know every stone and leaf, and you know 48 where my contact lens is. Please help me.”
Finally, they 49 down the path to the bottom. At the bottom there was a new party of climbers just starting up the face of the cliff. Suddenly, one of them shouted out, “Hey, you guys! Anybody 50 a contact lens?”
Well, that would be 51 enough, but you know 52 the climber saw it? An ant was moving 53 across the face of the rock, carrying it on it’s back.
Brenda told her father about the story of the 54 , the prayer, and the contact lens. He then drew a picture of an ant carrying that contact lens with the words, “Lord, I don’t know why you want me to do this. I can’t eat it, and it’s awfully 55 .But if this is what you want me to do, I’ll carry it for you.”
36. A. Although B. As C. Because D. Except
37. A. friend B. group C. guide D. leader
38. A. down B. off C. On D. up
39. A. Because B. As C. Before D. Until
40. A. wore out B. gave out C. carried out D. knocked out
41. A. over B. across C. beyond D. above
42. A. hopeful B. upset C. Eager D. proud
43. A. search B. dream C. find D. imagine
44. A. watched B. tested C. saw D. examined
45. A. looked up B. looked on C. looked out D. looked for
46. A. eyes B. arms C. hands D. legs
47. A. persons B. mountains C. trees D. animals
48. A. exactly B. simply C. generally D. nearly
49. A. walked B. climbed C. ran D. flew
50. A. missed B. owned C. got D. lost
51. A. annoying B. surprising C. disappointing D. worrying
52. A. which B. why C. when D. whether
53. A. Quickly B. happily C. slowly D. sadly
54. A. rock B. rope C. ant D. Lord
55. A. heavy B. light C.valuable D. dirty
第二部分语言知识及应用（共两节, 满分35分）
第一节：完形填空（共10小题，每小题2分，满分20分）
阅读下面短文，掌握其大意，然后从21—30各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Secondhand smoke clearly kills people and the only way to control it is to ban smoking in all workplaces, US Surgeon-General Dr Richard Carmona said.
In 1964Surgeon General’s report first laid out the 21 of smoking. Years later, in another report Dr Richard Carmona 22 the effects of secondhand smoke and said no one should be forced to inhale it.
“Secondhand smoke causes early death and disease in children and in 23 who do not smoke,” the report reads. “Children 24 to secondhand smoke are at an increased risk for sudden infant death syndrome（综合症）, acute respiratory（呼吸道） infections, and ear problems,” it adds.
Smoking by 25 causes respiratory symptoms and slows lung growth in their children. A 2005 report from the US Centers for Disease Control and Prevention found that 430 26 died every year in the United States from sudden infant death syndrome-all 27 by secondhand smoke.
States, 28 and other local authorities have battled over instituting（制定）smoking bans. Some 29 , especially bars and restaurants, have said they will lose business if smoking is completely banned. But the report said it is impossible to protect non-smokers even with designated smoking areas, and at least one report from California, which has strict bans, has shown no 30 on businesses.
21．A．advantages B．dangers C．poisons D．elements
|
22．A．neglected B．gained C．detailed D．conquered
23．A．gentlemen B．mothers C．youngstersD．adults第二部分：英语知识及运用（共两节，满分35分）
第一节：完形填空（共10小题；每小题2分, 满分20分）
阅读下面短文，从短文后所给各题的四个选项A、B、C和D中选出能填入相应空白处的最佳选项。
Rubber ducks are being used to help scientists understand global warming and melting glaciers. NASA researchers have 21 90 ducks into holes in Greenland's fastest moving glacier, the Jakobshavn Glacier between Greenland and Canada. The 22 have each been marked with the words "science experiment" along with an e-mail address. If they are found scientists will be able to 23 how the water moves through the ice and provide information about the 24 of glaciers. Scientists are still 25 about why glaciers speed up in summer and head towards the sea. One theory is that as the summer sun melts ice on top of the glacier's surface, the water moves to the bottom of the glacier, where it helps to 26 the movement of ice toward the coast. The Jakobshavn Glacier is believed to be the 27 of the iceberg that sank the Titanic in 1912. Robert Jones, the experiment organizer, said none of the ducks had been 28 yet. "We haven't heard back but it may take some time until somebody actually finds it and decides to send us a/an 29 that they have found it," he said. "These are places that are 30 so there aren't people walking around."
21. A. flown B. buried C. hidden D. dropped
22. A. results B. toys C. glaciers D. scientists
23. A. remember B. invent C. learn D. control
24. A. development B. movement C. growth D. travels
25. A. unsure B. excited C. concerned D. ignorant
26. A. reduce B. control C. speed D. stop
27. A. position B. source C. reason D. result
28. A. hurt B. eaten C. missing D. reported
29. A. email B. card C. fax D. sign
30. A. hidden B. lost C. remote D. quiet
第二部分：英语知识及运用（共两节，满分35分）
第一节：完形填空（共10小题；每小题2分, 满分20分）
阅读下面短文，从短文后所给各题的四个选项A、B、C和D中选出能填入相应空白处的最佳选项。
Rubber ducks are being used to help scientists understand global warming and melting glaciers. NASA researchers have 21 90 ducks into holes in Greenland's fastest moving glacier, the Jakobshavn Glacier between Greenland and Canada. The 22 have each been marked with the words "science experiment" along with an e-mail address. If they are found scientists will be able to 23 how the water moves through the ice and provide information about the 24 of glaciers. Scientists are still 25 about why glaciers speed up in summer and head towards the sea. One theory is that as the summer sun melts ice on top of the glacier's surface, the water moves to the bottom of the glacier, where it helps to 26 the movement of ice toward the coast. The Jakobshavn Glacier is believed to be the 27 of the iceberg that sank the Titanic in 1912. Robert Jones, the experiment organizer, said none of the ducks had been 28 yet. "We haven't heard back but it may take some time until somebody actually finds it and decides to send us a/an 29 that they have found it," he said. "These are places that are 30 so there aren't people walking around."
21. A. flown B. buried C. hidden D. dropped
22. A. results B. toys C. glaciers D. scientists
23. A. remember B. invent C. learn D. control
24. A. development B. movement C. growth D. travels
25. A. unsure B. excited C. concerned D. ignorant
26. A. reduce B. control C. speed D. stop
27. A. position B. source C. reason D. result
28. A. hurt B. eaten C. missing D. reported
29. A. email B. card C. fax D. sign
30. A. hidden B. lost C. remote D. quiet
第三节 完形填空（每小题1分）
阅读下面短文，从短文后各题所给的四个选项中，选出可以填入空白处的最佳选项。
Scientists find that hard-working people live longer than average men and women. Career women are 1 than housewives. Evidence (证据) shows that 2 are in poorer health than the job-holders. A study shows that whenever the unemployment (失业) rate increases by 1%，the death rate increases correspondingly (相应地) by 2%. All this comes down to one point: Work is helpful to heath.
Why is work good for health? It is because work keeps people busy, _3 loneliness and solitude (孤独). Researches show that people feel unhappy, 4 and lonely when they have nothing to do. Instead, the happiest are those who are 5 . Many high achievers who love their careers feel that they are the happiest when they are working hard. Work serves as a 6 between man and reality (真实). By work, people come into contact with each other. By collective (集体的) activity, they find friendship and warmth. This is helpful to health. The loss of work 7_ the loss of everything. It affects man spiritually (在精神上) and makes him liable to (易于) 8 .
9 , work gives one a sense of fulfillment (充实感) and a sense of 10 . Work makes one feel his value and status in society. When a 11 finishes his writing or a doctor successfully operates on a patient or a teacher sees his students grow, they are 12 beyond words (无法用语言表达).
From the above we can come to the conclusion 13 the more you work, 14 you will be. Let us work hard, 15 and live a happy and healthy life.
⒈ A. more healthier B. healthier C. weaker D. worse
⒉ A. career women B. the busy C. the jobless D. the hard-working
⒊ A. up with B. off C. in touch with D. away from
⒋ A. interested B. joyful C. concerned D. worried
⒌ A. busy B. free C. lazy D. empty
⒍ A. river B. gap C. channel D. bridge
⒎ A. means B. stands C. equals D. matches
⒏ A. success B. death C. victory D. disease
⒐ A. Besides B. Nevertheless C. However D. Yet
⒑ A. disappointment B. achievement C. regret D. apology
⒒ A. worker B. farmer C. writer D. manager
⒓ A. moved B. surprised C. sad D. happy
⒔ A. that B. which C. what D. when
⒕ A. the lonelier and weaker B. lonelier and healthier
C. happier and healthier D. the happier and healthier
⒖ A. study well B. studying well C. study good D. studying good
第二节：完形填空（共 20 小题；每小题 1.5 分，满分 30 分）
阅读下面短文，掌握其大意，然后从 36－55 各题所给的四个选项（A、B、C和D）中，选出最佳选项。
Telling the truth is a very good habit. If you 36 speak the truth, you can save yourself from a lot of 37 ! Here is a story of a man who did a lot of 38 things, but his promise to tell the truth 39 him.
Once a man came to a prophet（预言家）and said, “Oh, prophet, I have many bad 40. Which one of them should I 41 first？”The prophet said, “Give up telling 42 first and always speak the truth. ”The man promised to do so and went home.
At night the man was about to go out to steal. Before setting out , he thought for a moment about the 43 he made with the prophet. “44 tomorrow the prophet asks me where I have been, what shall I say？Shall I say that I went out 45？No, I cannot say that. But nor can I lie. If I tell the truth, 46 will start hating me and call me a thief. I would be 47 for stealing.”
So the man 48 not to steal that night, and gave up this bad habit.
Next day, he 49 drinking wine. When he was about to do so, he said to himself, “What shall I say to the prophet if he asks me what I did during the day？I cannot tell a lie, and if I speak the truth people will 50 me, because a Muslim is not 51 to drink wine.” And so he gave up the 52 of drinking wine.
In this way, 53 the man thought of doing something bad, he 54 his promise to tell the truth. One by one, he gave up all his bad habits and became a very 55 person.
36、A、always B、hardly C、sometimes D、never
37、A、time B、money C、trouble D、energy
38、A、great B、bad C、strange D、stupid
39、A、educated B、bothered C、tested D、saved
40、A、habits B、friends C、purposes D、collections
41、A、take in B、bring back C、give up D、depend on
42、A、stories B、truths C、reasons D、lies
43、A、plan B、secret C、promise D、mistake
44、A、Because B、Unless C、Since D、If
45、A、stealing B、drinking C、walking D、dancing
46、A、none B、someone C、anyone D、everyone
47、A、controlled B、admired C、punished D、killed
48、A、refused B、tried C、decided D、agreed
49、A、talked about B、felt like C、adapted to(适应) D、broke down
50、A、understand B、like C、hate D、respect
51、A、allowed B、encouraged C、invited D、advised
52、A、chance B、disadvantage C、adventure D、idea
53、A、wherever B、whenever C、whatever D、however
54、A、forgot B、doubted C、regretted D、remembered
55、A、good B、attractive C、practical D、generous(慷慨的)
.
III. Reading Comprehension
Section A
Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.
Your cell phone holds secrets about you. Besides the names and 50 that you’ve programmed into it, traces of your DNA remain on it, according to a new study.
DNA is genetic material that appears in every cell. Like your fingerprint, your DNA is unique to you 51 you have an identical twin. Scientists today routinely analyze DNA in blood, saliva (唾液), or hair 52 behind at the scene of a crime. The results often help detectives identify 53 and their victims. Your cell phone can 54 more about you than you might think.
Meghan J. McFadden, a scientist at McMaster University1in Hamilton, Ontario, heard about a crime in which the suspect（嫌疑犯）bled onto a cell phone and later dropped the 55 . This made her wonder whether traces of DNA remained on cell phones ___ even when no blood was involved. 56 she and colleague Margaret Wallace of the City University of New York analyzed the flip-open phones(翻盖手机) of 10 volunteers. They used swabs(药签) to collect 57 traces of the users from two parts of the phone: the outside, where the user holds it, and the 58 , which is placed at the user’s ear.
The scientists scrubbed the phones using a solution made mostly of alcohol. The aim of washing was to 59 all detectable (可查明的) traces of DNA. The owners got their phones back for another week. 60 the researchers collected the phones and repeated the swabbing of each phone once more.
The scientists discovered DNA that 61 to the phone’s owner on each of the phones. Better samples were collected from the outside of each phone, but those swabs also 62 DNA of other people who had apparently also handled the phone. 63 , DNA showed up even in swabs that were taken immediately after the phones were scrubbed. That suggests that washing won’t remove all traces of evidence from a criminal’s device. So cell phones can now be added to the 64 of clues that can settle a crime-scene investigation.
50. A. secrets B. music C. numbers D. films
51. A. because B. unless C. although D. if
52. A. kept B. dropped C. stayed D. left
53. A. criminals B. clues C. witnesses D. policemen
54. A. reveal B. convince C. acquire D. value
55. A. document B. paper C. card D. device
56. A. However B. But C. So D. For
57. A. invisible B. non-existent C. missing D. apparent
58. A. microphone B. keys C. screen D. speaker
59. A. preserve B. revise C. remove D. protect
60. A. Then B. Thus C. Meanwhile D. Otherwise
61. A. stuck B. belonged C. happened D. contributed
62. A. took in B. mixed with C. picked up D. gave out
63. A. Generally B. Shortly C. Disappointedly D. Surprisingly
64. A. explanation B. list C. book D. discovery
Sharks have lived in the oceans for over 450 million years, long before dinosaurs appeared. There are now about 360 of sharks, whose size, behavior, and other characteristics differ widely.
Every year, we catch and kill over 100 million sharks, for food and for their fins. Dried shark fins are used to make shark fin soup, which sells for as much as $50 a bowl in fine Hong Kong . Other sharks are killed for sport and out of fear. Sharks are vulnerable(脆弱的) to overfishing because it most species 10 to 15 years to begin reproducing and they produce only a few offspring.
by movies and popular novels, most people see sharks as people-eating monsters. This is far from the . Every year, a few types of shark injure about 100 people worldwide and kill about 25. Most are by great white sharks, which often feed on sea lions and other marine mammals. They sometimes mistake human swimmers for their normal prey, if they are wearing black wet suits.
If you are a typical ocean-goer, your of being killed by an unprovoked （无缘无故的）attack by a shark are about 1 in 100 million. You are more to be killed by a pig than a shark and thousands of times more likely to get killed when you drive a car.
Sharks help human lives. In addition to providing people with food, they are helping us learn how to cancer, bacteria, and viruses. Sharks are very healthy and have aging processes similar to ours. Their highly effective immune system wounds to heal quickly without becoming infected, and their blood is being studied in connection with AIDS research.
Sharks are among the few animals in the world that almost get cancer and eye cataracts. Understanding why can help us improve human . Chemicals extracted from shark cartilage have killed cancerous tumors in laboratory animals.
A．species B．classes C．groups D．names
A．greatly B．popularly C．widely D．mostly
A．supermarkets B．restaurants C．offices D．companies
A．spends B．takes C．costs D．uses
A．Impressed B．Moved C．Changed D．Influenced
A．story B．truth C．movie D．problem
A．injuries B．deaths C．attacks D．causes
A．specially B．especially C．mainly D．usually
A．chances B．fears C．lives D．percentages
A．likely B．frequent C．possible D．lucky
A．avoid B．save C．keep D．prevent
A．damage B．destroy C．fight D．ruin
A．advises B．allows C．forces D．forbids
A．never B．seldom C．often D．usually
A．analysis B．research C．study D．health
试题篮
()
粤公网安备 44130202000953号
