351. The rapidly growing birth rate brings about a lot of environment problems, which the government is supposed to take _____.

A. significantly　 B. severely C. earnestly D. seriously

[答案] D. seriously.

[注释]take...seriously 是习惯搭配，意为“重视，认真对待”

350. The two dogs started to fight, so we tried to _____ them.

A. split　　 B. separate　　 C. tear　　 D. divide

[答案] B. separate.

[注释]separate 意指将结合的东西“分开，拆散”，divide指把整体“分成”几个部 分，split(沿一条线-)裂开，tear撕开，distinguish“区分，区别，辨别”。

349. Japan has to employ an increasing number of overseas workers because there is no easy solution to its labor _____.

　A. decline　　 B. rarity　　 C. vacancy　　 D. shortage

[答案] D. shortage.

[注释]labour shortage 劳动力短缺。Decline 下降。rarity稀少。vacancy 空缺，未占用.

348. The thieves _____ him _____ in the park, took his wallet and escaped.

　 A. held .. back　　　 B. held .. up

　 C. held .. on　　　　 D. held .. out

[答案] B. held ... up.

[注释]hold up sb.拦劫。hold up, hold on, hold out 的用法请参阅III.82,83注释.

347. When I arrived in this country, I had to start learning the language from _____.

A. scratch　　 B. scrap　　 C. snatch　　 D. scrape

[答案] A. scratch.

[注释]start from scratch (=from the beginning, from nothing) 从头开始，白手起家；John brought the radio from scratch. (=John bought the parts and put them together himself.)

346. As soon as Charles had _____ a little from his surprise, his one thought was to get away.

A. returned　 B. absorbed　 C. dissolved　 D. recovered

[答案] D. recovered.

[注释]recover from 从......恢复过来

345. I shall never beat John at tennis; we are clearly not in the same _____.

A. set　　 B. band　　 C. group　　 D. class

[答案] D. class.

[注释]be in the same class 水平相同。此句中class,意为“(高低、优劣的)等级；种 类”。

344. I'm afraid you have no _____ but to come along with us.

A. possibility　 B. permission C. choice　 D. selection

[答案]C. choice.

[注释]have no choice but 除了...没有别的选择；只能...：I have no choice but to obey.(我只能服从)。

343. One-room schoolhouses can still be found in _____ areas where there are no other schools for many miles.

A.disposed B. deserted C. isolated　 D. abandoned

[答案]C. isolated

[注释]isolated 孤立的。Deserted被遗弃的；空无一人的；abandoned丢弃的，如；abandoned cars(因报废而丢弃的汽车)。Dispose of sth. 处理掉某物：He disposed of his old car .(他把旧的汽车处理掉了。)意为卖掉或扔掉等。

342. If you put too many potatoes in that paper-bag it will _____.

A. fail　　 B. explode　　 C. crack　　 D. burst

[答案]D. burst

[注释] burst vt./vi.涨破，涨裂。Burst one's clothes(撑破衣服)。