508] This material ______ very soft.

[译文] 这种材料摸起来很柔软。

　 A. is felt 　 B. feels

　 C. has felt 　 D. feeling

[答案及简析] B。 feel连系动词，摸起来，后面跟形容词作表语。

507] Nobody enjoys ______.

[译文] 没有人喜欢被瞧不起。

　 A. being looked down upon 　 B. looking down upon

　 C. being looked down　　 D. to look down

[答案及简析] A。 enjoy后面要跟动名词做宾语；look down upon　瞧不起。

506] ______ metals are good conductors, silver ______ the best conductor of all.

[译文] 几乎所有的金属都是导体，银在其中是最好的。

　 A. Almost, being 　 B. Almost all, being

　 C. Almost, is 　 D. Almost all, to be

[答案及简析] B。 独立主格结构。

505] Instead, he seemed to see Tom ’s face, with the wide smile he ______ whenever he told a joke.

[译文] 相反，她似乎看到了Tom的脸，一张带着他任何时候讲笑话时微笑的脸。

　 A. wore 　 B. brought

　 C. appeared 　 D. carried

[答案及简析] A。 带着微笑，英语中wear a smile一般用表示。

504] ----- I can ’t see the words on the blackboard clearly. ----- Why, your eyes need _____ perhaps you need _______ glasses.

[译文] --黑板上的字我看不清楚。　--啊，你的眼睛需要检查，或许你需要戴副眼镜。

　 A. to examined, to wear　　 B. to examine ,to wear　

　 C. to be examined, to wear 　 D. examining, wearing

[答案及简析] C。 need作为实意动词，表示需要时，一般用动名词的主动形式或者不定式的被动形式表示被动意义。

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。

700] I need one more stamp before my collection ______.

[译文] 我再需要一枚邮票就完成了我的集邮册。

　 A. had completed 　 B. completes

　 C. has been completed 　 D. is completed

[答案及简析] D 主句是将来时态(包括含有情态动词)，时间或条件状语从句中用现在时态。

699] When and where to build the new factory ______ yet.

[译文] 什么时候和什么地点建工厂还没有决定。

　 A. is not decided 　 B. are not decided

　 C. has not decided 　 D. have not decided

[答案及简析] A。 不定式短语做主语谓语动词用该用单数。