重庆快乐十分

统考大学英语A完型填空习题及解析

8复习6

Throughout history man has had to accept the fact that all living things must die, but people now live longer than they http://www.like2us.com/doc/info-286f0668b42acfc789eb172ded630b1c58ee9b40.htmled to. Yet, all living things still show the 2.effect of aging, which will eventually 3.result in death.

Aging is not a disease, but as a person passes maturity, the cells of the body and the organs they form do not function as well as they did in childhood。 The body provides less 4。protection against diseases and is more inclined 5。to accident。

A number of related causes may contribute to aging. Some cells of the body have a fairly long life, but they are not 6.replaced when they die. In an aging person the new cells may not be as capable 7.of growth as those of a young person.

Another 8.effect in aging may be changes within the cells themselves. Some of the protein chemicals in cells are known to change with age and become less flexible. This is why the skin of old people wrinkles. This is also the reason old people 9.shrink in height. There may be other more important chemicals changes in the cells. Some complex cell chemicals, such as DNA and RNA, store and 10.pass on information that the cells need. Aging may affect this process and change the information-carrying molecules so that they do not transmit the information as well.

重庆快乐十分1. A:had B:use to C:were used to D:used to

2. A:fact B:effect C:function D:symbol

3。 A:affect B:produce C:result in D:result from

4. A:protection B:demand C:decline D:delay

5. A:to B:for C:against D:from

6. A:replaced B:born C:recovered D:discovered

7. A:with B:for C:of D:to

8. A:factor B:effect C:reason D:element

9。 A:short B:shrink C:lengthen D:increase

10。 A:pass to B:pass from C:pass on D:pass on to

DBCAA ACBBC

6复习5

As the plane circled over the airport, everyone sensed that something was wrong。 The plane was moving unsteadily through the air, and although the passengers had 21。fastened their seat belts, they were suddenly thrown forward。 At that moment, the air-hostess appeared。 She looked very pale, but she was quite 22。calm。 Speaking quickly but almost in a whisper she http://www。360docs。net/doc/info-286f0668b42acfc789eb172ded630b1c58ee9b40。htmlrmed everyone that the pilot had fainted and asked 24。if any of the passengers knew anything about machines -- or at least how to drive a car。 After a moment's hesitation, a man got up and followed the stewardess into the pilot's cabin。

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