题目内容

4. If times                ，have our ways of thinking changed too? (change)

如果时代变了，我们的思维方式也会变吗？

4. have changed考查现在完成时的用法。根据汉语提示中的"了 "，说明事情已经发生且对以后有影响，应使用现在完成时。另外，times作主语，谓语应使用复数have。

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(   ) 1. The long absence of rain       led to a serious drought in the southwest of China the

year before last,which drew the concern of the whole country.

A. immediately    B. accidentally C. gradually    D. undoubtedly

10. The money was repaid on time                 . (as)

按照他许诺的，钱被按时归还了。

5. The pop stars' personal life is regularly discussed by people who do not know them but talk
as if                  . (be)

素不相识的人们经常谈论明星的私生活，就像是谈论他们的亲密朋友一样。

Pretoria, South Africa. Hundreds of swimmers are playing in the water along a South African beach. Suddenly a huge shark appears offshore and heads for the bathers. Before it can get close to the swimmers, the shark, for some mysterious reason, starts swimming parallel to the beach. Then it turns away from the shore and heads out to sea,leaving the swimmers untouched.

Such a scene will soon become common along shark infested(鲨鱼出没)shores. An electrical engineer from the University of Pretoria has developed an electrical system that repels(击退)sharks by controlling their movements. Confixsed by this action, the sharks end up turning away from the beach.

In this unusual shark repellent method, an insulated(绝缘的)cable is buried on the bottom of the sea around a beach from which people swim. When an electric current is sent through the cable， an electric field is produced in the water above the cable.

When the shark swims into the electric field, nerve cells just below the shark's skin detect the field. The electricity produces a reflex(反射)action in the shark's muscles, causing the dangerous animal with sharp teeth to swim parallel to the cable. Confused by increasing loss of control of its muscles, the shark suddenly changes its direction and heads seaward, away from the electric field.

In a test of the invisible new shark-repellent system，a cable was placed around a beach in St. Lucia,an island in the tropics. A protective net,which had been installed around the beach a long

 

time ago to keep sharks from swimmers, was left in place during the experiment.

When the electric field was left on for more than a year and a half,no sharks were found in the nets. However, when the power was turned off, 89 sharks ended up in the nets.

of many sharks，say biologists. Currently，thousands of sharks die each year when they become trapped in protective nets that surround holiday resorts in Africa and Australia. About 10 to 15 humans are killed by sharks annually.

(   ) 4. In the first passage, why doesn't the shark attack the swimmers?

A.   Because there are many swimmers in the water.

B.   Because the shark doesn't want to eat the swimmers.

C.   Because of some mysterious reason from the God.

D.   Because there is an invisible electric field confusing the shark.

(   ) 5. An electrical engineer from the University of Pretoria has developed                   -

A. a protective net    B. a new shark-repellent system

C. the electric field    D. an insulated cable

(   ) 6. An electric field is produced in the water above the cable       

A.   only when the shark swims into the electric field

B.   only when an insulated cable is buried on the bottom of the sea around a beach from which people swim

C.   only when an electric current is sent through the cable

D.   only when the sharks are trapped in protective nets

(   ) 7. Which of the following is NOT true according to the passage?

A.  Protective nets had been installed around the beach earlier than the new shark re?pellent system.

B.  This new kind of shark repellent system will take place of the protective nets.

C.  Thousands of sharks die and about 10 to 15 humans are killed by sharks each year in Africa and Australia since this new system was put into use.

D.  Using the electric wall method instead of nets to protect bathers would avoid the needless death of many sharks.

9.                         he called back. (about)

我正要给Tom再次打电话时，他打过来了。

16. Tm afraid you'd better not call me at 3 o'clock on the afternoon tomorrow. I            then. (have)

你最好不要在明天下午3点钟给我打电话。那时我在开会。

(   ) 3. ―I think I should wear a dress instead of this jeans.

―It's just a small informal party，so you don * t have to         

A. warm up    B. put up C. dress up    D. keep up

Tess was eight years old when she heard her Mom and Dad talking about her little brother，Andrew. He was very 1    and they were completely out of money. Only a very 2    surgery could save him now and it was looking like there was no one to 3    them the money. She heard Daddy say to her tearful Mother with whispered desperation, "Only a 4    can save him now."

5    all her coins in her bedroom and6   bringing the coins,Tess slipped out the back door and made her way six blocks to Drug Store. She 7    patiently for the pharmacist(药剂师)to give her some 8   but he was too busy at this moment. Tess twisted her feet to make a scuffing noise. Nothing. She cleared her 9    with the most disgusting sound she could muster. No 10    . Finally she took a coin and banged it on the glass counter. That did it！"And what do you11   ？” the pharmacist asked in an annoyed tone of voice. Tm talking to my brother from Chicago whom I haven' t seen for ages， ”he said 12   waiting for a reply to his question.

"Well,I want to talk to you about my brother," Tess answered. "He's really, really sick... and I want to 13   a miracle."

"1 beg your pardon? " said the pharmacist. "Andrew has something bad growing inside his head and my Daddy says only a miracle can save him now. 14 how much does a miracle cost?” "We don't sell miracles here,little girl." "Please,just tell me how much it costs," Tess 15     .

The pharmacist's brother was a well-dressed man. He stooped down and asked the little girl, "What kind of a miracle does your brother need?"

"1 don' t know，" Tess replied with her eyes wetting up. "I just know he, s really sick and Mommy says he needs an 16   . But my Daddy can't pay for it,so I want to use my money." "How much do you 17    ？ ”asked the man from Chicago. "One dollar and eleven cents," Tess answered 18   . "Well, what a coincidence！ ”smiled the man. 'That, s the 19    price. Take me to where you live. Let's see ifl have the kind of miracle you need."

That well-dressed man was Dr. Carlton Armstrong, a surgeon, specializing in neurosurgery. The operation was completed without charge and soon Andrew was home again and doing well.

'That surgery," her Mom whispered, "was a real miracle. I wonder how much it would have cost? " Tess  20   . She knew exactly how much a miracle cost... one dollar and eleven cents... plus the faith of a little child.

(   ) 1. A. energetic    B. sick C. young    D. naughty

(   ) 2. A. costly    B. easy C. simple    D. formal

(   ) 3. A. give    B. donate C. supply    D. lend

(   ) 4. A. dream    B. doctor   C. miracle D. examination

(   ) 5. A. Counting    B. Making C. Spending    D. Saving

(   ) 6. A. nervously    B. cautiously C. carefully    D. disappointedly

(   ) 7. A. imagined    B. stared C. sat    D. waited

(   ) 8. A. drugs    B. attention C. words    D. money

(   ) 9. A. face    B,mind C. throat    D. head

(   ) 10. A. good    B. way C. problem    D. doubt

(   ) 11. A. do    B. think C. want    D. like

(   ) 12. A. with    B. after C. upon    D. without

(   ) 13. A. make    B. buy C. get    D. produce

(   ) 14. A. So    B. Therefore C. Otherwise    D. However

(   ) 15. A. begged    B. tried C. pleaded    D. cried

(   ) 16. A. boy    B. operation C. choice    D. job

(   ) 17. A. have    B. earn C. save    D. offer

(   ) 18. A. happily    B. pitifully C. shyly    D,patiently

(   ) 19. A. correct    B. precise C. exact    D. true

(   ) 20. A. cheered    B. smiled C. argued    D. imagined

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