2021年职称英语考试《理工类》考试共65题，分为单选题和多选题和判断题和计算题和简答题和不定项。小编为您整理词汇选项分析5道练习题，附答案解析，供您备考练习。

1、So far no one has been able to account for the cause of the accident. 【单选题】

A.assess

B.explain

C.describe

D.investigate

正确答案:B

答案解析:account for和explain同义，解释、说明；assess:评估；describe:描述；investigate:调查。

2、During the Second World War, all important resources in the U. S. were allocated by the federal government. 【单选题】

A.distributed

B.nationalized

C.commandeered

D.taxed

正确答案:A

答案解析:allocate：分派、分配，和distribute（分发、散布）意思相近；nationalize:国有化：commandeer:征募、霸占；tax：对……征税、课税、使负重担。

3、We\'re happy to report that business is booming this year.【单选题】

A.risky

B.successful

C.failing

D.open

正确答案:B

答案解析:我们很高兴地向大家报告今年业绩红火。本题难度不大，booming指“景气，繁荣”，和successful“成功的”是近义词，A项指“冒险的”，C项指“衰退的”，D项指“开放的”，都不合句意，最佳答案是B。

4、They didn\'t want anyone to know about their romance. 【单选题】

A.adventure

B.mystery

C.poem

D.love

正确答案:D

答案解析:romance:浪漫史，他们的浪漫史也就是他们的love; adventure：冒险；mystery：神秘、奥秘；poem:诗歌。

5、The great change of the city astonished all the visitors.【单选题】

A.surprised

B.scared

C.excited

D.moved

正确答案:A

答案解析:这座城市发生的大变化使所有的参观者惊讶。本题难度不大，干扰项干扰不强。astonished和surprised都可指“吃惊的”，B项指“使惊吓”，最佳答案是A。