备考指导

　　四六级考试是一项考察基础语法和词汇短语知识比较多的题型，这类知识往往又比较零碎，考生复习时不好把握方向，四六级考试网整理了历年 英语四级词汇真题内容，考生不妨来练习一下，从真题中掌握语法。

　　21. The fifth generation computers, withartificial intelligence, ________ and perfectednow.

　　A) developed

　　B) have developed

　　C) are being developed

　　D) will have been developed(C)

　　22. This ticket ________ you to a free meal in our new restaurant.

　　A) gives

　　B) grants

　　C) entitles

　　D) credits(C)

　　23. You ________ her in her office last Friday; she’s been out of town for two weeks.

　　A) needn’t have seen

　　B) must have seen

　　C) might have seen

　　D) can’t have seen(D)

　　24. That was so serious a matter that I had no choice but ________ the police.

　　A) called in

　　B) calling in

　　C) call in

　　D) to call in(D)

　　25. She was so ________ in her job that she didn’t hear anybody knocking at thedoor.

　　A) attracted

　　B) absorbed

　　C) drawn

　　D) concentrated(B)

　　26. ________ as it was at such a time, his work attracted much attention.

　　A) Being published

　　B) Published

　　C) Publishing

　　D) To be published(B)

　　27. At first, the speaker was referring to the problem of pollution in the country, buthalfway in her speech, she suddenly ________ to another subject.

　　A) committed

　　B) switched

　　C) favoured

　　D) transmitted(B)

　　28. It is politely requested by the hotel management that radios ________ after 11o’clock at night.

　　A) were not played

　　B) not to play

　　C) not be played

　　D) did not play(C)

　　29. Although I like the appearance of the house, what really made me decide to buy itwas the beautiful ________ through the window.

　　A) vision

　　B) look

　　C) picture

　　D) view(D)

　　30. Cancer is second only ________ heart disease as a cause of death.

　　A) of

　　B) to

　　C) with

　　D) from(B)