2. 解析：选B。in the distance意为“在远方”。句意为：我看清在远处有三个人影在来回地动。

4. Given; get　 5. If; is given

?提升练习

5. comes about

B. 1. running out of　 2. running out　 3. running out/run out of　

C. 1. bounced　 2. jumping　 3. leap　 4. hopped

6. furnished　 7. loose　 8. adjusted　 9. originally　 10. fibre

10. Low profits,　　　　　 　high inflation, made many factories in the south close down.

A. combining with　 B. combined with　

C. combine with　　 D. to combine with

9. -How did you get the book?

-I　　　　 　it in an old bookstore on the Fourth Avenue.

A. took over　　 　 B. tried out 　　

C. got through　　　 D. came across

8. I’m afraid I can’t ；you will have to go to a hotel.

A. put you up 　B. take you up

C. give you up　 D. get you up

7. 　　　　　　alone with his homework all day, the child felt depressed and bad?tempered.

A. Leaving　 　　 B. Left 　　

C. To leave 　　 D. To be left

6. Reading 　　　　　the mind only with materials of knowledge； it is thinking that makes what we read ours.

A. furnishes　 B. instructs　

C. admits　 　D. quits