[单项选择]The book concentrates on the fact that the twenty executives who are interviewed ______.


A. work in a number of different in dustries.
B. strated their companies.
C. have worked for different lengths of tim

[单项选择]Even though he had recently gained twenty pounds, Mike continued to ______ himself by eating five can dy bars every day.


A. diverge
B. endure
C. indulge
D. instruct

[单项选择]In the past twenty years the replacement rate has been falling in every country.

[单项选择]Disease of the twenty-first century will differ from those of the twentieth century, just as the illnesses of the twentieth century have been quite different from those of nineteenth century.（）
A. 疾病在二十一世纪将会不同于二十世纪，正是因为二十世纪的疾病与十九世纪的疾病大为不同。
B. 二十一世纪的疾病必定异于二十世纪的疾病，恰如二十世纪和十九世纪的疾病比起来十分悬殊那样。
C. 二十一世纪的疾病将会与二十世纪的那些不同，就像二十世纪的疾病也与十九世纪的那些差别很大一样。
D. 二十一世纪的疾病必将与二十世纪的疾病不同，正如二十世纪的疾病与十九世纪的疾病大为不同一样。

[单项选择]Twenty-four members took part in the debate, most of them making speeches（）to the chairman.
A. to oppose
B. be oppose
C. opposing
D. opposed

[单项选择]The railway station is only twenty （　） walk from my home.
A. minute
B. minute's
C. minutes
D. minutes'

[单项选择]—It takes me just twenty minutes to reach the city from here.
—Do you really drive ______


A. as fast
B. that fast
C. with such fastness
D. fast like that

[单项选择]

Text 4
Last summer, some twenty-eight thousand homeless people were afforded shelter by the city of New York. Of this number, twelve thou sand were children and six thousand were parents living together in families. The average child was six years old, the average parent twenty seven. A typical homeless family included a mother with two or three children, but in about one-fifth of these families two parents were present. Roughly ten thousand single persons, then, made up the remainder of the population of the city’ s shelter.
These proportions vary somewhat from one area of the nation to another. In all areas, however, families are the fastest-growing sector of the homeless population, and in the Northeast they are by far the largest sector already. In Massachusetts, three-fourths of the homeless now are families with children; in certain parts of Massachusetts-Attleboro and Northampton, for example-the proportion reaches 90percent. Two thirds of the
A. Robert Hayes thought more homeless people are family members.
B. There is a trend that more and more homeless people live in families.
C. The proportion of homeless families remains the same in the country.
D. Most of the children had the opportunity, to study in Boston.

[单项选择]It will take us twenty minutes to get to the railway station,______ traffic delays.


A. acknowledging
B. affording
C. allowing for
D. accounting for

[单项选择]After (driving) twenty miles, he suddenly (realized) that he (has been driving) (in) a wrong direction.
A. driving
B. realized
C. has been driving
D. in

[单项选择]Many important scientific discoveries are in fact _________ones as they were made by chance.


A. relative
B. temporary
C. subordinate
D. accidental

[单项选择]--Will another ten be enough
--Just twenty will


A. work
B. give
C. fit
D. do

[单项选择]In the twenty-first century, American's attitude towards remarried people will be ________.


A. suspicious
B. critical
C. fussy
D. approving

[单项选择]The naturalist walked on for ______ twenty kilometers on an empty stomach.


A. more
B. much more
C. another
D. another more