[单项选择]

Text 4
White people tend to be nervous of raising the subject of race and education, but are often voluble on the issue if a black person brings it up. So when Trevor Phillips, chair man of Britain’ s Commission for Racial Equality, said that there was a particular problem with black boys’ performance at school, and that it might be a good idea to educate them apart from other pupils, there was a torrent of comment. Some of it commended his proposal, and some criticized it, but none of it questioned its premise. Everybody accepts that black boys are a problem.
On the face of it, it looks as though Mr Phillips is right. Only 27% of Afro-Caribbean boys get five A-C grades at GCSE, the exams taken by 16-year-olds, compared with 47% of boys as a Whole and 44% of Afro-Caribbean girls. Since, in some subjects, candidates who score less than 50% get Cs, those who don’ t reach this threshold have picked up pretty little at school.
Mr Phill
A. poor children should be taught separately.
B. there is something odd with Mr Phillips' belief.
C. black boys should be educated as a whole.
D. there is something wrong with black boys.

Text 4
White people tend to be nervous of raising the subject of race and education, but are often voluble on the issue if a black person brings it up. So when Trevor Phillips, chair man of Britain’ s Commission for Racial Equality, said that there was a particular problem with black boys’ performance at school, and that it might be a good idea to educate them apart from other pupils, there was a torrent of comment. Some of it commended his proposal, and some criticized it, but none of it questioned its premise. Everybody accepts that black boys are a problem.
On the face of it, it looks as though Mr Phillips is right. Only 27% of Afro-Caribbean boys get five A-C grades at GCSE, the exams taken by 16-year-olds, compared with 47% of boys as a Whole and 44% of Afro-Caribbean girls. Since, in some subjects, candidates who score less than 50% get Cs, those who don’ t reach this threshold have picked up pretty little at school.
Mr Phill
A. Objectivity is overstated.
B. Wisdom is eliminated.
C. Economic analysis is ignored.
D. Self-confidence is lost.

Text 1
Populations tend to grow at an exponential rate. This means that they progressivel, double. As an example of this type of growth rate, take one penny and double it every day for one month. After the first week, you would have only 64 cents, but after the fourth week you would have over a million dollars.
This helps explain why the population has come on "all of a sudden". It took from the beginning of human life to the year 1830 for the population of the earth to reach one billion. That represents a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960, only thirty years, and in 1975 world population reached 4 billion, which is another billion people in only Fifteen years.
World population is increasing at a rate of 9,000 per hour, 220,000 per day, 80 million per year. This is not only due to higher birth rates, but to lower death rates as
A. 100 years
B. 145 years
C. 1975 years
D. Over two million years