专业英语四级语法与词汇模拟题26

专业英语四级语法与词汇模拟题26

单项选择题

1. But for the accident, we ______ the task much earlier.

A.should finish

B.should have finished

C.would finish

D.shall have finished

答案：B

[解答] 考查虚拟语气。

but for相当于without，if not for，意为“要不是”。用but for开头的句子就相当于if引导的非真实条件句，故排除选项C与D。对过去事情的虚拟，应该用完成时，故本题应该选B。

2. —When has the country been open to international trade?

—1960, I suppose.

A.Since

B.In

C.From

D.After

答案：A

[解答] 考查句子时态。

问句中用的是现在完成时态，when相当于下文的1978。since+过去某一时间点常与现在完成时连用，故选A项。

3. Despite the wonderful acting and well-developed plot the ______ movie could not hold our attention.

A.three hours

B.three-hour

C.three hours'

D.three hour's

答案：B

[解答] 考查复合词作定语。

数词+量词构成的复合词作定语时，中间用连接符连接，量词用单数。故B正确。

4. Careful surveys have indicated that as many as 50 percent of patients do not take drugs ______ directed.

A.like

B.so

C.which

D.as

答案：D

[解答] 考查连词的用法。

此处考查引导方式状语从句的连词，空格后面实际上是一个省略句，完整形式应该是they are directed。由此可知该处缺少连词，意思应该是“以…方式”，故选as。

5. ______ the door when a gust of wind blew the candle out.

A.He had no sooner opened

B.Hardly had he opened

C.Scarcely did he opened

D.No sooner did he open

答案：B

[解答] 考查倒装句。

hardly/scarcely…when或no sooner…than为固定搭配，意为“一…就…”。含有此结构的句子，表示从句中的动作一发生，主句中的动作随即发生，并且当hardly/scarcely或no sooner置于句首时，从句的主语和谓语必须倒装；另外，在以上结构中，主句一般用过去完成时，从句一般用一般过去时。由此可知正确答案为B。

6. The old tower must be saved, ______ the cost.

A.however

B.whatever

C.whichever

D.wherever

答案：B

[解答] 考查状语从句连接词及省略。

whoever引导让步状语从句，表示“不管…是什么(怎样)”；从句的有些成分有时可以省略，此处就省略了谓语be动词，其完整形式应为Whatever the cost is。故本题应该选B。

7. Silk, printing, paper, the compass and powder originated in China, and ______ introduction in the west had far reaching effects.

A.these

B.their

C.those

D.its

答案：B

[解答] 考查物主代词。

空格后边是名词，故可以推断出应该填入物主代词。由题干可知，此处传入的是丝绸、印刷术、造纸术、指南针和火药，故物主代词应用第三人称复数形式，所以正确答案是B。

8. Which sentence of the following is correct?

A.The climate here is cooler throughout the year than the rest of the country.

B.The climate here is cooler throughout the year than in the rest of the country.

C.The climate here is cooler throughout the year than at the rest of the country.

D.The climate here is cooler throughout the year than other places of the country.

答案：B

[解答] 考查比较状语从句。