536] The head engineer is in ________ the project .

[译文] 主任工程师负责这项工程。

　 A. his charge of 　 B. the charge of

　 C. charge of 　 D. one’s charge

[答案及简析] C。 in charge of　固定搭配，"负责"。

535] ______ began our new lesson.

[译文] 这样我们的新课就开始了。

　 A. But 　 B. Such

　 C. Thus 　 D. So that

[答案及简析] C。 副词Thus位于句首，要完全倒装。

534] I didn’t manage to do it _____ you had explained how.

[译文] 知道你解释了后我才能把此事做好。

　 A. until 　 B. unless

　 C. when 　 D. before

[答案及简析] A。 not …until..结构，"直到…才"。

533] According to the time table , the train for Beijing______ at seven o’clock in the evening .

[译文] 根据时刻表，去北京的火车晚上七点发车。

　 A. leaves 　 B. has left

　 C. was left 　 D. will leave

[答案及简析] A。 火车时刻是固定的用一般现在时态。

532] Henry escaped ____ by admitting his mistake.

[译文] Henry承认了错误，免受惩罚。

　 A. being punished 　 B. having been punished

　 C. having punished 　 D. punishing

[答案及简析] A。 escape一词后面一般跟动名词作宾语。

531] I first met Lisa three years ago. She _____ at a shop at the time.

[译文] 我三年前遇到Lisa。她一直在一家商店工作．

　 A. has worked 　 B. was working

　 C. had been worked 　 D. had worked

[答案及简析] B。 有at the time这个短语一般都是该用进行时态的。

530] I told him that if painting was important for him he would live on bread in order to ______ .

[译文] 我告诉他，如果绘画对他来是很重要，他就得靠吃面包为生以求成功。

　 A. Succeed 　 B. success

　 C. succeeding 　 D. to success

[答案及简析] A。 in order to接不定式表示目的。

529] It was not until then that I came to know knowledge ____ only from practice.

[译文] 知道那时我才认识到知识来自实践。

　 A. had come 　 B. came

　 C. would come　　 D. comes

[答案及简析] D。 真理的东西时态用一般现在时。

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。