阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出一个最佳答案.

　　Jungle country is not friendly to man, but is possible to survive there. You must have the right 1 and you must 2 a few important things about the jungle. Then your chances of staying 3 are very good. In the jungle, you should always carry a 4 , Then you can 5 which way to go. Again and again you must alert（警惕）your 6 by it. Keep 　　 7 . 8 the ground in front of you carefully. Stop and listen 　　 9 .

　　If you lose your 10 , do not be 11 . Mark the 12 where you are with blazes on a tree. Then you can always know where you started.

　　Finding water that is safe to drink can be a 13 . Many streams and rivers carry germs that can be 14 to man. 15 , the jungle has many kinds of plants and vines that give water.

　　 16 in the jungle is a science. Learn as much as you can about what to 17 in the jungle. Then no part of the jungle will seem completely unfriendly or 18 . 19 , you will be able to“ 20 ”it for a long time.

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　　Most of us can remember the days when we didn't use e-mail as an everyday vehicle for communication. Slowly but surely, it crept into 1 . E-mail is a 2 tool for college students at any level. It's available 24 hours a day, 7 days a week and 3 at holidays. Most universities assign students an account upon entrance, 4 there is usually not even an option (choice) involved.

　　You can do everything from consulting on homework and projects, 5 classmates, family and friends, arid getting daily news services to 6 you informed of world 7 . But, what are the 8 ?

　　E-mail can. be e-jail. You might 9 hours writing and replying to e-mail. 10 you should be busy with the books for an upcoming exam. 11 , you might be signed up for so many daily services, 12 horoscopes, news services, or personals, that your mailbox is so 13 “junk mail,” the finding the 14 e-mails through your box might take hours.

　　If you're a student, 15 is precious. Create and organize your e-mail folders into important school-related mail, correspondence with friends and family, and a folder for jokes, horoscopes and other news, services. 16 put the mail into the proper folders first, and when you're finished, head for the important school-related folder first. Respond to the most important e-mails first and, 17 you have time, you can get to the others.

　　 18 your friends from forwarding those tiresome joke lists, sex quizzes, and chain mails. The minute you 19 you've got one, delete it 20 so you won't be tempted to read it.

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When sailors are allowed ashore after a long time at sea, they sometimes get drunk and cause trouble. For this reason, the navy ___1___ has its police in big ports. Whenever sailors cause trouble, the police come and ___2___ them.　　

One day, the police in a big seaport received a telephone call ___3___ a bar in the town. The barman said that a big sailor had got drunk and ___4___ the furniture in the bar. The officer in charge of the police guard that evening said that he would come immediately.　　

Now, officers who ___5___ and punish the sailors ___6___ drunk usually chose ___7___ policeman they could find to go with them. ___8___ this particular officer did not do this. ___9___, he chose the smallest and ___10___ man he could find to go to the bar with him and ___11___ the sailor.　　

Another officer who ___12___ there was surprised when he saw the officer of the guard chose such a small man. ___13___ he said to him, “Why ___14___ you take a big man with you? You have to fight the sailor who ___15___.”　　

“Yes, you are ___16___ right,” answered the officer of the guard. “That is exactly ___17___ I am taking this small man. If you see two policemen coming ___18___ you, and one is ___19___ the other, which one ___20___ you attack?”　　

1. A. always   B. seldom       C. forever       D. sometimes　　

2. A. meet with      B. deal with    C. see     D. judge　　

3. A. about     B. from   C. in       D. of　　

4. A. was breaking B. was ordering      C. was moving       D. was dusting　　

5. A. would go       B. might beat  C. dared to fight     D. had to go　　

6. A. slightly   B. not at all     C. heavily       D. much more　　

7. A. the biggest     B. the youngest      C. the bravest D. the experienced　　

8. A. In fact    B. But     C. So      D. And　　

9. A. Instead   B. Therefore   C. Although    D. Then　　

10. A. good-looking       B. weakest-looking　    C. ugly-looking    D. strongest-looking　　

11. A. seize     B. kill      C. get rid of    D. catch up with　　

12. A. will go  B. had come   C. would start off          D. happened to be　　

13. A. Yet       B. But     C. So      D. Then　　

14. A. don’t    B. couldn’t     C. can’t   D. do　　

15. A. looks strong B. is drunk      C. seems rude D. is dangerous　　

16. A. all B. very    C. too     D. quite　　

17. A. how     B. what   C. why    D. that　　

18. A. up B. at C. before D. towards　　

19. A. not smaller than   B. as big as　　       C. as small as D. much smaller than

20. A. could    B. will     C. do      D. can　　

We often talk about ourselves as if we have permanent genetic defects(缺陷) that can never be changed. “I’m impatient.” “I’m always behind.” “I always put things 　　1 !” You’ve surely heard them. Maybe you’ve used them to describe　　　 ___2　 .

These comments may come from stories about us that have been 　3　 for many years—often from 　4　 childhood. These stories may have no 　5　 in fact. But they can set low expectations for us. As a child, my mother said to me, “Marshall, you have no mechanical (操作机械的) skills, and you will never have any mechanical skills for the rest of your life.” How did these expectations　 6　 my development? I was never 　7　 to work on cars or be around　 8　 . When I was 18, I took the US Army’s Mechanical Aptitude Test. My scores were in the bottom for the entire nation!

Six years later,　 9　 , I was at California University, working on my doctors degree. One of my professors, Dr. Bob Tannbaum, asked me to write down things I did well and things I couldn’t do. On the positive side, I　 10　 down, “research, writing, analysis, and speaking.” On the　 11　 side, I wrote, “I have no mechanical skills.”

Bob asked me how I knew I had no mechanical skills. I explained my life 　12 and told him about my 　13　 performance on the Army test. Bob then asked, “　 14　 is it that you can solve 　 15　 mathematical problems, but you can’t solve simple mechanical problems?”

Suddenly I realized that I didn’t 　16　 from some sort of genetic defect. I was just living out expectations that I had chosen to 　17　 . At that point, it wasn’t just my family and friends who had been　 18　 my belief that I was mechanically hopeless. And it wasn’t just the Army test, either. I was the one who kept telling myself, “You can’t do this!” I realized that as long as I kept saying that, it was going to remain true. 　19　 , if we don’t treat ourselves as if we have incurable genetic defects, we can do well in almost 　20　 we choose.

1. A. away 　　　　　 B. off 　　　　　　　 C. up 　　　　　　　　　 D. down

2. A. them 　　　　 B. myself 　　　　　 C. yourself 　　　　 D. others

3. A. said 　　　　　 B. spoken 　　　　　 C. spread 　　　　　 D. repeated

4. A. as long as 　 B. as far back as 　 C. as well as 　　　 D. as much as

5. A. basis 　　　　 B. plot 　　　　　　　 C. cause 　　　　　　　　　　 D. meaning

6. A. lead 　　　　　 B. improve　　　　　　 C. affect 　　　　　 D. change

7. A. encouraged B. demanded 　　 C. hoped 　　　　　 D. agreed

8. A. means 　　　 B. tools 　　　　　　 C. facilities 　　　　 D. hammers

9. A. therefore 　 B. somehow 　　　 C. instead 　　　　　 D. however

10. A. settled 　　 B. turned 　　　　　 C. took 　　　　　　　　　　 D. got

11. A. passive 　　　 B. active 　　　　　 C. negative 　　　　　 D. subjective

12. A. experiences 　　　 B. trips 　　　　　　　　　　 C. roads 　　　　　　 D. paths

13. A. unexpected B. poor 　　　　　　 C. excellent 　　　 D. average

14. A. When 　　　 B. What 　　　　　　 C. How 　　　　　　　 D. Why

15. A. complex 　 B. advanced　　　　　 C. common 　　　　 D. primary

16. A. arise 　　　　 B. separate　　　　　　 C. suffer 　　　　　 D. come

17. A. believe 　　 B. suspect 　　　　 C. adopt 　　　　　　 D. receive

18. A. weakening B. strengthening 　 C. abandoning 　 D. accepting

19. A. As a result 　　　 B. At the same time C. In addition 　　 D. On the contrary

20. A. anything 　　 B. something 　　 C. nothing 　　　　 D. all

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　　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