The computer plays an important part in our everyday life. It is one of the great __1__ in the world in the __2__ century. It works for us not only at home, in the offices, in big shops, __3__ at schools. Today it is used __4__ many ways. It really __5__ the world large wealth (財(cái)富) and happiness.

The first computer in the world was __6__ Enid. It was built in America in 1946. It was __7__ and heavy. __8__ it was born, it has been developing very fast. Until now it has gone __9__ four periods(時(shí)期，階段)and changed a lot. There’re many kinds of computers. Computers are getting smaller and smaller and computing faster and faster. It becomes more and more __10__.

The computer can do most of the things __11__ the people. It can help us to __12__ about the real world more quickly, to learn __13__ we want to learn and to think __14__ ourselves. __15__ a student in the twenty-first century, you must work hard at it.

1. A. inventions B. discoveries C. robots D. inventors

2. A. twenty-first B. twenties C. twelfth D. twentieth

3. A. also B. but also C. too D. either

4. A. in B. to C. by D. over

5. A. takes B. helps C. gets D. brings

6. A. found B. invented C. called D. bought

7. A. easy B. small C. large D. light

8. A. For B. Until C. When D. Since

9. A. by B. across C. through D. against

10.A. serious B. harmful. C. dangerous D. helpful

11.A. for B. to C. at D. with

12.A. set B. tell C. know D. talk

13.A. what B. that C. which D. who

14.A. of B. about C. out D. for

15.A. For B. Be C. As D. To

名師點(diǎn)評

本文介紹了電腦的產(chǎn)生、發(fā)展以及在我們?nèi)粘Ｉ�活中廣泛的使用，針對一些人對將來電腦會控制人類的擔(dān)憂，作者提出了自己的看法。

答案解析在下一頁

1. A。one of 后要用可數(shù)名詞的復(fù)數(shù)形式，根據(jù)文章意思，可知答案是A。

2. D。要表達(dá)第幾個(gè)世紀(jì)，應(yīng)該用“序數(shù)詞 century”，而根據(jù)常識，計(jì)算機(jī)是二十世紀(jì)的產(chǎn)物，A項(xiàng)“二十一世紀(jì)”與實(shí)際不符合。

3. B。固定搭配not only…but (also)… 意思是“不但……而且……”。所以答案是B。

4. A。in many ways為一固定用法，表示“在許多方面”。

5. D。根據(jù)文章大意，可知答案是D，表示“給人們帶來財(cái)富和快樂”。

6. C。因?yàn)镋nid是名字，故用called。

7. C。根據(jù)常識可知老式計(jì)算機(jī)龐大而笨重，故填large。

8. D。該句句意為“自它誕生之日起，它的發(fā)展就非常迅速”，since在意思和時(shí)態(tài)上與主句呼應(yīng)，為正確選項(xiàng)。

9. C。動詞短語go through表示“經(jīng)歷……”。 #p#分頁標(biāo)題#e#

10. D。

11. A。用介詞for 賓語表示“為人們做事”，故選A。

12. C。know about表示“了解”，側(cè)重于有關(guān)某人或某事的具體情況。

13. A。learn后面接的是一個(gè)賓語從句，而且連接詞在從句中做learn 的賓語，所以只能用what，因?yàn)閠hat在賓語從句中是純連詞，只能起連接作用，不能做句子成分。

14. D。think of表示“想起;認(rèn)為”;think about表示“考慮”;think out表示“想出”;根據(jù)文章含義，答案應(yīng)是D。

15. C。介詞as表示“作為”，為正確選項(xiàng)。

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