478] The car ______ at the present speed until it reaches the foot of the mountain at about ten o’clock tonight.

[译文] 按目前速度前进，大约今天10点就可以到达山脚下。

　 A. would go 　 B. went

　 C. will be going 　 D. goes

[答案及简析] A。 情态动词用法。would表示对将来的推测。

477] Though ______, many laws of nature exist.

[译文] 尽管没被发现，许多自然规律还是存在的。

　 A. not having been discovered 　 B. having not been discovered

　 C. not having discovered 　 D. having not discovered

[答案及简析] A。 当从句的主语与主句的主语一致，可以用分词短语化简。

476] The servant did _____ she could ______ the revolutionary.

[译文] 仆人做了她该做的事来帮助革命。

　 A. what, help 　 B. that, to help

　 C. what, to help 　 D. all help

[答案及简析] C。 do what one can to do sth.是一个句型。

475] The missing boys were last seen _____ near the river.

[译文] 丢失的孩子最后看见他时，他在河边玩耍。

　 A. playing 　 B. to be playing

　 C. play 　 D. to play

[答案及简析] A。 现在分词作主与补足语，表示进行。

474] He gave me the phone number in order ______ contact him when we are in need of help.

[译文] 他给我他的电话号码以便我们需要他的帮助时好联系他。

　 A. to 　 B. of me to

　 C. for me to 　 D. that I

[答案及简析] C。 不定时表示目的。

472] The factory is five kilometers ______ from his house.

[译文] 工厂离他家五公里左右。

　 A. so far 　 B. or so

　 C. far 　 D. way

[答案及简析] B。 or so固定搭配，“左右”。

471] The little boy found his toy you _____ under the bed.

[译文] 小孩找到了你藏在床下的玩具。

　 A. hide 　 B. hiding

　 C. to hide 　 D. hid

[答案及简析] D。 考查定语从句。先行词his toy在从句中充当hid的宾语。

470] The meeting ______ tomorrow afternoon is about _______ rid of pollution.

[译文] 明天下午举行的会议是关于制止污染的问题。

　 A. held, to get 　 B. to be held; getting

　 C. to hold; to get 　 D. being held; getting

[答案及简析] B。 不定式表示将来；get rid of阻止；除掉。

469] If you ______ the medicine you ______ better now.

[译文] 如果你吃了这药，现在就会感觉好多了。

　 A. took ; would feel 　 B. had taken; felt

　 C. had taken; would feel 　 D. took; would have felt

[答案及简析] C。 考查错综复杂条件状语从句中的虚拟语气。从句与主句的时态各顾各的。