大学英语教材4unit1课后练习答案

Iisten and Respond

Zooming In on the Details

1)endangered 2) threats 3) resource 4) diet 5) satisfy

6) harvested 7) declining 8) supplies 9) excessive

10) starvation

Words in action

1. 1) disaster; 2) compelled; 3) historical;

4) disciplined; 5) destruction; 6) output;

7) retreat; 8) abandoned; 9) trace;

10) eternal; 11) investment; 12) transfer;

13) justify; 14) nonetheless; 15) contributions;

16) accelerate; 17) threaten.

2. 1) show signs of; 2) called upon; 3) off limits;

4) in fear of ; 5) slow down; 6) cut down;

7) from head to foot; 8) come by; 9) lost out;

10) As yet; 11) reside in.

Increasing your word power

1. web+log; breakfast+lunch; medical+care;

Motor+hotel; net+citizen; science+ fiction;

Work+alcoholic.

2. 1) anthropology: the scientific study of the human race, especially of its origins, development, customs and beliefs;

2) archaeology;

3) ecology;

4) geology: the study of rocks, soils, etc. which make up the Earth, and of their changes during the history of the world.

5) ideology;

6) musicology: the study of the history and theory of music;

7) psychology;

8) sociology: the scientific study of the nature and development of society and social behaviour;

9) zoology.

3. 1) individua; 2) contradictory; 3) destructive;

4) rational; 5) primitive; 6) synthetic;

7) distant; 8) pessimistic; 9) irreplaceable;

10) enormous.

Grammar review

1. 1) she wished us health and success in the new year.

2) he asked how we are getting along with our work.

3) Jack said to me that I would be happy to know that his condition had improved.

4) Rose asked Jack whether he was sure his mother would like the idea.

5) He asked John how long he had been waiting for them.

6) She said I needn’t have done all that myself.

2. 1) The strikers protested to the police that they had no right

to arrest them.

2) He promised that he would give us whatever assistance we needed.

3) He agreed (that) was the best solution to the problem.

4) My sister admitted that it was she who had broken the glass.

5) He declard that he meant what he said and would never go back on his word.

6) The man insisted that we give an explanation of what had happened.

7) Mrs. Jones complained that no one showed concern for the elderly in that country.

8) The sales manager explained that he couldn’t give us a definite answer because he had not received instructions from his company.

Cloze

1) realm; 2) elemental; 3) obtain; 4) stubbornly;

5) transfrred; 6) transformed; 7) subdued; 8) expansion;

9) irreplaceable; 10) extinct; 11) dynamic; 12) verge;

13) moderate; 14) ecological; 15) rational;

Translation:

1. The village is so close to the border that the villagers live in constant fear of attacks from the enemy.