大学英语四级听力复习备考：学会同义替换

　　Unit Thirteen 学会同义替换

　　标准测试

　　Passage 1

　　1.

　　A. Float in water.

　　B. Sink in water.

　　C. Cause downward force.

　　D. Cause upward force.

　　2.

　　A. Upward force and downward force are equal.

　　B. Upward force is greater.

　　C. Downward force is greater.

　　D. The earth’s pull is not great.

　　3.

　　A. The water will push it.

　　B. The water will pull it .

　　C. The water will do nothing to it .

　　D. The earth will push it.

　　经典真题

　　Passage 2

　　4.

　　A. Alcohol helps develop people’s intelligence.

　　B. Heavy drinking is not necessarily harmful to one’s health.

　　C. Controlled drinking helps people keep their wits as they age.

　　D. Drinking, even moderately, may harm one’s health.

　　5.

　　A. Worried.

　　B. Pleased.

　　C. Surprised.

　　D. Unconcerned.

　　6.

　　A. At a conference.

　　B. In a newspaper.

　　C. On television.

　　D. In a journal.

　　能力强化

　　Passage 3

　　7.

　　A. To learn why human population grows so fast.

　　B. To find out to what extent man is affected by living space.

　　C. To learn in what way rats are like human beings.

　　D. To find out how rats live and die.

　　8.

　　A. They can’t sleep well.

　　B. They can’t eat well.

　　C. They tend to reproduce more.

　　D. They tend to bite each other.

　　9.

　　A. Population explosion is inevitable.

　　B. Over crowdedness can have the same effect on man.

　　C. Food and space are essential to all animals.

　　D. Population explosion can lead to violence.