528] I don’t really work here, I _____ until the new secretary arrives.

[译文] 我真的不是在这儿工作，我在这儿帮忙直到新的秘书来。

　 A. just help out 　 B. have just helped out

　 C. am just helping out 　 D. will just help out

[答案及简析] C。 until前的谓语动词是延续性动词就用肯定形式，动作到until从句的时间就结束了。

527] Charles Babbage is generally considered ______ the first computer.

[译文] Charles Babbage被认为是第一台电脑的发明者。

　 A. to invent 　 B. inventing

　 C. to have invented 　 D. having invented

[答案及简析] C。 不定式的动作发生在谓语动作之前，要用完成时态。

526] "Can’t you read?" Mary said ______ to the notice.

[译文] "你不能读么？"　Mary指着告示生气地说道。

　 A. angrily pointing 　 B. and point angrily

　 C. angrily pointed 　 D. and angrily pointing

[答案及简析] A。 现在分词短语表示伴随。

525] After the new technique was introduced, the factory produced______ tractors in 1998 as the year before.

[译文] 引进了新的技术后，这加工厂1998年生产的拖拉机是以前的两倍。

　 A. as many twice 　 B. as twice as many

　 C. twice as many 　 D. twice many as

[答案及简析] C。 比较级的修饰语应该放在比较级结构的前面。

524] Look, they seem _____ about you.

[译文] 看，他们好像在议论你呢。

　 A. Talk 　 B. to talk

　 C. to be talking 　 D. to be talked

[答案及简析] C。 Look，后面一般是进行时态。

523] My brother ______singing ______ dancing while I _____ dance _____sing.

[译文] 我的哥哥宁愿唱歌而不愿跳舞，而我却喜欢跳舞而不喜欢唱歌。

　 A. prefers , to , would rather , than 　 B. would rather , than , prefer , to

　 C. prefers , than , would rather ,to 　 D. would rather , to ,prefer , to

[答案及简析] A。 考查动词用法。Prefer doing sth. to doing sth. would rather do sth. tha. Do sth.

522] Mr. Chen is a teacher and works very hard. _________ his wife.

[译文] 陈先生是一个老师工作努力。他的妻子也是这样。

　 A. So does 　 B. So it

　 C. So it is with 　 D. It is same with

[答案及简析] C。 句型考查；前面提及到的。

521] The car was stopped by highway man, while ______ through a forest.

[译文] 在穿过一个树林子的时候，小车被交警拦住。

　 A. was passing 　 B. passed

　 C. passing 　 D. pass

[答案及简析] C。 passing的动作由car发出，因此用现在分词表示时间。

520] There is no cause to tremble ______ his judge.

[译文] 没有理由在法官面前颤抖。

　 A. in front 　 B. beside

　 C. after 　 D. before

[答案及简析] D。 介词before表示在什么面前。

519] ______ a terrible storm would take place in Shanghai.

[译文] 消息说，暴风雨即将降临上海。

　 A. Word came with 　 B. Word came that

　 C. Word with came 　 D. Word that came

[答案及简析] B。 word单数，无冠词表示消息，信息；that是同位语从句。