503] The typewriter _______ all week.

[译文] 桌上的打字机放在这儿已经一周了。

　 A. laying on the table, were it had laid 　

B. lying on the table, were it had laid

　 C. laying on the table, were it had laid 　

D. lying on the table had been laid

[答案及简析] D。 lying on the table现在分词短语作定语，该句是一个被动语态。

502] This is the plane _______ he went to Shanghai ______ business.

[译文] 这就是他到上海出差乘坐的飞机。

　 A. where, for a 　 B. by which, on the

　 C. in which, on 　 D. where, on

[答案及简析] C。 定语从句中表示方式一定要注意：by which = by the plane 所以只有in which = in the plane是正确的。

501] ______ that she should come here on time.

[译文] 她今天准时到这儿来就好了。

　 A. Suppose 　 B. Demand

　 C. Think 　 D. Believe

[答案及简析] A。 Suppose表示假设，后面的从句用虚拟语气。

500] At no point south of the Han River _______ more than a mile.

[译文] 敌军在汉河南岸前进了一英里多。

　 A. the enemy didn’t advance 　 B. the enemy advanced

　 C. did the enemy advance　　 D. didn’t

[答案及简析] C 表示地点的状语在句首，主句要部分倒装。

本资料来源于《七彩教育网》

499] Only at that time ______ that he had made a lot of mistakes in his homework.

[译文] 知道那个时候他才意识到他的家庭作业中出了很多错误。

　 A. He realized 　 B. did he realize

　 C. he did realized 　 D. realized he

[答案及简析] B。 only引导的状语在句首，主句要部分倒装。

498] He ______ prison two years ago and now he _______.

[译文] 两年前他悲观进监狱，现在被释放了。

　 A. was put in; was set free 　 B. was shut into, is set free

　 C. put into, has been set freely 　 D. was put into; has been set free

[答案及简析] D。 put sb. into prison　；set sb. free都是固定搭配。

497] _______ the two oceans the Pacific is ______ .

[译文] 在这两个大海中，太平洋是最大的一个。

　 A. In; the large 　 B. For; larger

　 C. Of; larger 　 D. Of, the larger

[答案及简析] D。 在两个当中的比较级，要用介词of。

496] If city noises _______ from increasing, people _______ shout to be heard even at the dinner table 20 years from now.

[译文] 如果城市噪音不制止，二十年后人们不得不在餐桌上吃饭就得大声喊叫才能听得见。

　 A. are not kept; will have to 　 B. are not kept; have to

　 C. do not kept; will have to 　 D. do not kept; have to

[答案及简析] A。 考查keep…from doing sth.结构的被动形式。

495] I _____ ten minutes to decide whether I should reject the offer.

[译文] 给我使分钟的时间考虑是否拒绝这个帮助。

　 A. gave 　 B. was given

　 C. was giving 　 D. had given

[答案及简析] B。 考查动词give的用法。give sb. sth ,该句中还差个宾语，故用被动形式。

494] The people are ______ young workers between the age of twenty and thirty.

[译文] 这些大部分都是20到30岁的年轻工人。

　 A. nearly 　 B. almost

　 C. mostly 　 D. most

[答案及简析] C。 mostly副词，大部分。