题目内容
The plan: turn Mars into a blue world with streams and green fields, and then fill it with creatures (生物) from the earth. This idea may sound like something from a science fiction (科幻小说), but it is actually being taken seriously by many researchers.
This suggested future for the “red planet” will be the main topic for discussion at an international conference hosted by NASA (美国宇航局) this week. Leading researchers as well as science fiction writers will attend the event. It comes as NASA is preparing a multi?billion?dollar Mars research programme. “Turning Mars into a little earth has long been a topic in science fiction,”said Dr Michael Meyer, NASA’s senior scientist for astrobiology (太空生物学). “Now, with scientists exploring the reality, we can ask what are the real possibilities of changing Mars.”
Most scientists agree that Mars could be turned into a little earth, although much time and money would be needed to achieve this goal.
But many experts are shocked by the idea. “We are destroying our own world at an unbelievable speed and now we are talking about ruining another planet,” said Paul Murdin, of the Institute of Astronomy, Cambridge, UK. Over the past months, scientists have become increasingly confident they will find Martian life forms. Europe and America’s robot explorers have found proof that water, mixed with soil, exists in large amounts on the planet.
In addition, two different groups of scientists announced on March 28 that they had found signs of methane (甲烷) in the Martian atmosphere (大气). The gas is a waste product of living creatures and could be produced by microbes (微生物) living in the red planet’s soil.
But scientists such as Dr Lisa Pratt, a biologist at Indiana University, say that these microbes will be put in danger by the little earth project. “Before we have even discovered if there is life on Mars, we are talking about carrying out projects that would destroy all these native lifeforms, all the strange microbes that we hope to find buried in the soil,” said Dr Pratt. This view is shared by Monica Grady, a planetary scientist at the Natural History Museum, London. “We cannot risk starting a global experiment that would wipe out the precious information we are looking for.” she said, “This is just wrong.”
5. The passage is about________.
A. a plan turning Mars into a little earth
B. the necessity of changing Mars
C. Mars supporting life
D. finding water in the Mars
6. Which of the following is NOT the reason why some scientists are against the plan?
A. The project would wipe out all the native lifeforms on the Mars.
B. The project will cost too much money and work.
C. We would ruin Mars.
D. We are destroying our own world at an unbelievable speed.
7. We can infer from the passage that________.
A. water is a crucial factor for life
B. the project will have little effect on the native lifeforms supposed to live on the Mars
C. Monica Grady is in favour of carrying out the little earth project
D. the idea turning Mars into a little earth is nothing but a science fiction
8. Which of the following supports the conclusion of microbes living in the Mars’s soil?
A. Scientists found liquid water in the Mars.
B. Scientists found signs of methane in the Martian atmosphere.
C. Scientists found a lot of good soil on the Mars.
D. Scientists found some creatures living on the Mars.
5---8 ABAB
解析:
本文是议论文,描绘了把红色火星改造成蓝色的“生命天堂”的宏伟规划,综述了科学家对这个火星改造工程所持的不同观点。
5.A 主旨大意题。根据第一段第一句The plan: turn Mars into a blue world with streams and green fields, and then fill it with creatures from the earth.可知这段短文主要讲的是火星改造计划的设想。
6.B 细节题。根据短文所述,科学家反对这个设想的理由有:“We are destroying our own world at an unbelievable speed and now we are talking about ruining another planet”, 和that would destroy all these native lifeforms。B项没有提到。
7.A 推测题。根据scientists have become increasingly confident they will find Martian life forms. Europe and America’s robot explorers have found proof that water, mixed with soil, exists in large amounts on the planet的内容,我们知道科学家越来越相信火星上存在生命,因为有证据表明火星土壤中存在大量的水,故可断定水是生命存在的关键要素。
8.B 推理题。根据The gas(methane) is a waste product of living creatures and could be produced by microbes living in the red planet’s soil可知,火星大气层中存在甲烷的迹象,而甲烷是活着的动物产生的废物,据此科学家推断这可能是生活在火星上的微生物产生的。故可得出结论:火星上可能存在微生物,主要证据是火星在大气层中发现了甲烷的迹象。
阅读下面短文, 掌握其大意, 然后从1 ̄25各题所给的四个选项中, 选出一个最 佳答案。
On the night of the play, Jack was at the theatre early and he was already dressed in a policeman's clothes long 1 the end of the first scene. He certainly looked the part all right, he thought as he 2 himself in the mirror. He 3 thought of going out into the street to see 4 he could pass as 5 out there. Just for 6 , of course.
Then he suddenly felt nervous. After all, it was his first time to 7 a part in a play. 8 could he face all those people 9 the play? He put his head in his hands and tried to 10 his lines (台词), but nothing 11 to his mind. A knock on the door made him look 12 . He was to go on stage (舞台) in the second scene. "Have I 13 my part and ruined (破坏) the play for everybody?" he thought to himself. But 14 was only the manager. She 15 how nervous he was and 16 he should stand near the stage 17 he could watch and follow the play. It was a 18 of getting rid of his nervousness. She was right. It seemed to 19. In fact the more he watched the play the 20 the felt himself part of it .
At last the 21 came for him to appear on the stage. But suddenly the manager came to him again, 22 worried as she placed a hand on his arm to 23 him back. "Has anything gone 24?" Jack asked. "I'm afraid you're going to be 25 ," she said. "They've jumped three pages of the play and have missed your part out completely."
(1) | A. before | B. by | C. after | D. at | [ ] |
(2) | A. looked | B. showed | C. admired | D. enjoyed | [ ] |
(3) | A. just | B. even | C. still | D. already | [ ] |
(4) | A. how | B. why | C. as if | D. whether | [ ] |
(5) | A. a policeman | B. an inspector | C. an officer | D. a manager | [ ] |
(6) | A. joke | B. fun | C. play | D. exercise | [ ] |
(7) | A. make | B. join | C. have | D. give | [ ] |
(8) | A. Where | B. Why | C. When | D. How | [ ] |
(9) | A. following | B. attending | C. watching | D. observing | [ ] |
(10) | A. read | B. remember | C. understand | D. learn | [ ] |
(11) | A. came | B. went | C. happened | D. got | [ ] |
(12) | A. away | B. up | C. out | D. down | [ ] |
(13) | A. passed | B. left | C. missed | D.failed | [ ] |
(14) | A. this | B. that | C. she | D. it | [ ] |
(15) | A. wondered | B. imagined | C. noticed | D. examined | [ ] |
(16) | A. agreed | B. suggested | C. persuaded | D. encouraged | [ ] |
(17) | A. where | B. when | C. that | D. there | [ ] |
(18) | A. idea | B. way | C. path | D. plan | [ ] |
(19) | A. do | B. win | C. work | D. act | [ ] |
(20) | A. less | B. harder | C. better | D. more | [ ] |
(21) | A. hour | B. minute | C. moment | D. period | [ ] |
(22) | A. feeling | B. looking | C. sounding | D. growing | [ ] |
(23) | A. hold | B. take | C. catch | D. push | [ ] |
(24) | A. had | B. late | C. mad | D. wrong | [ ] |
(25) | A. frightened | B. excited | C. disappointed | D. pleased | [ ] |
完形填空
Geoffrey Moorhouse's Travel Plan
Geoffrey Moorhouse was flying home to England from Africa in 1971, when he looked __1__ the plane and suddenly thought how huge and __2__ the Sahara Desert was. There and then, he decided to __3__ it by himself by camel.
For many __4__ men had crossed the Desert from the __5__ and south to trade. But there had been __6__ point in crossing from __7__ to east. So no one had done it __8__ 1963, when twelve Belgians drove across. If he went __9__, by camel, it would be __10__. Moorhouse did not __11__ to go just for fun. But what other __12__ was there? Immediately he knew. He would go because he was afraid. “I would use this journey to __13__ for fear.”
A year passed __14__ he was free to begin his __15__. He was forty. He had never __16__ a camel. He spoke no Arabic. And he did not know how to __17__ himself by the stars. His friends thought he would soon __18__ such an impossible plan.
He did not. To take advantage of(利用)the desert winter, he decided to __19__ England early in October 1972. He had six months to get __20__. He began learning Arabic-school lessons in the __21__, and listening to __22__ at home in the afternoon. He made a lot of visits to the London Zoo to learn about camels. At night, he studied the __23__. Maps and compass(指南针)are not enough in the desert. You must know __24__ where you are, and for that you must be able to “read” the stars with a sextant(六分仪).
Moorhouse planned to begin his __25__ from the Atlantic coast of Africa, and ride through Mauritania, Mali, Algeria and Libya into Egypt, where he hoped to reach the River Nile.
1. | ||||
[ ] |
||||
A. after | B. for | C. out of | D. into | |
2. | ||||
[ ] |
||||
A. yellow | B. hot | C. beautiful | D. empty | |
3. | ||||
[ ] |
||||
A. owe | B. cross | C. pass | D. finish | |
4. | ||||
[ ] |
||||
A. days | B. months | C. centuries | D. reasons | |
5. | ||||
[ ] |
||||
A. east | B. south | C. west | D. north | |
6. | ||||
[ ] |
||||
A. a | B. no | C. one | D. some | |
7. | ||||
[ ] |
||||
A. east | B. south | C. west | D. north | |
8. | ||||
[ ] |
||||
A. to | B. after | C. until | D. in | |
9. | ||||
[ ] |
||||
A. alone | B. by | C. slowly | D. faster | |
10. | ||||
[ ] |
||||
A. difficult | B. easy | C. successful | D. enough | |
11. | ||||
[ ] |
||||
A. start | B. want | C. take off | D. refuse | |
12. | ||||
[ ] |
||||
A. reason | B. person | C. plan | D. travel | |
13. | ||||
[ ] |
||||
A. explain | B. show | C. examine | D. enjoy | |
14. | ||||
[ ] |
||||
A. after | B. as | C. because | D. before | |
15. | ||||
[ ] |
||||
A. preparations | B. trip | C. holidays | D. writing | |
16. | ||||
[ ] |
||||
A. had | B. fed | C. seen | D. touched | |
17. | ||||
[ ] |
||||
A. live | B. stay | C. move | D. guide | |
18. | ||||
[ ] |
||||
A. begin | B. drop | C. finish | D. make | |
19. | ||||
[ ] |
||||
A. return to | B. work in | C. leave | D. leave for | |
20. | ||||
[ ] |
||||
A. ready | B. back | C. there | D. off | |
21. | ||||
[ ] |
||||
A. morning | B. afternoon | C. evening | D. night | |
22. | ||||
[ ] |
||||
A. talks | B. tapes | C. his wife | D. his guide | |
23. | ||||
[ ] |
||||
A. books | B. camels | C. stars | D. deserts | |
24. | ||||
[ ] |
||||
A. naturally | B. surely | C. correctly | D. exactly | |
25. | ||||
[ ] |
||||
A. exercises | B. classes | C. trip | D. race |
完形填空
DC Hilton was one of the first American to find out that there was money to be made in the middle of the night. 42 years ago be bought a small __1___on US highway 69, in Oklahoma. His___2___customers were truck drivers and___3___salesmen who drank coffee and ate cheese-burgers when they stopped to___4___their journey.
It was they who first tried to____5____Hilton to remain open all night. He thought about it for a while, and then suddenly made up his___6____. He took the door key and threw it across the road. He hasn't closed the door____7___.
Over the years his simple cafe expanded into a 24-hour roadside ____8___,with a 100-seat restaurant, a petrol station, a mini shopping market, a car ___9___for mobile homes and all-night selfhelp laundry(洗衣店).
Hilton was a ___10__in a 24-hour working trend which has now ___11___ around the world. Today not only restaurants but also hanks, supermarkets, mail-order ___12___and many other businesses are___13___to be open all night. But is this really a good thing?
A lot of ____14____has been done in America on the effect of 24-hour working and there is growing ___15____about the long term dangers of society that doesn't sleep.
Americans are said to be___16___20% less than they did 100 years ago, and 55% claim to __17___at least occasionally from overtiredness. ___18____of the worst man-made accidents happened in the last few hours before ___19___, when even the most experienced night-worker has difficult____20____awake.
(1)A.market |
B.business |
C.station |
D.restaurant |
(2)A.main |
B.common |
C.strange |
D.only |
(3)A.shopping |
B.clothing |
C.traveling |
D.cooking |
(4)A.start |
B.break |
C.enjoy |
D.continue |
(5)A.persuade |
B.suggest |
C.order |
D.warn |
(6)A.plan |
B.thought |
C.mind |
D.decision |
(7)A.then |
B.since |
C.later |
D.yet |
(8)A.cafe |
B.building |
C.workshop |
D.hotel |
(9)A.garage |
B.park |
C.repair |
D.rest |
(10)A.pioneer |
B.dealer |
C.master |
D.manager |
(11)A.caught in |
B.caught out |
C.caught on |
D.caught up |
(12)A.shops |
B.firms |
C.markets |
D.departments |
(13)A.ordered |
B.forced |
C.performing |
D.beginning |
(14)A.research |
B.effort |
C.work |
D.information |
(15)A.interest |
B.sense |
C.concern |
D.progress |
(16)A.working |
B.playing |
C.sleeping |
D.relaxing |
(17)A.recover |
B.suffer |
C.return |
D.prevent |
(18)A.Some |
B.Few |
C.None |
D.All |
(19)A.dust |
B.midnight |
C.darkness |
D.dawn |
(20)A.staying |
B.becoming |
C.continuing |
D.insisting |