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。

　　41. You would be ________ a risk to let your child go to school by himself.

　　A) omitting

　　B) attaching

　　C) affording

　　D) running(D)

　　42. He is always here; it’s ________ you’ve never met him.

　　A) unique

　　B) strange

　　C) rare

　　D) peculiar(B)

　　43. There has been a great increase in retail sales, ________?

　　A) does there

　　B) isn’t there

　　C) hasn’t there

　　D) isn’t it(C)

　　44. We’d like to ________ a table for five for dinner this evening.

　　A) preserve

　　B) retain

　　C) reserve

　　D) sustain(B)

　　45. Although a teenager, Fred could resist ________ what to do and what not to do.

　　A) being told

　　B) telling

　　C) to be told

　　D) to tell(A)

　　46. The European Union countries were once worried that they would not have ________ supplies of petroleum.

　　A) proficient

　　B) efficient

　　C) potential

　　D) sufficient(D)

　　47. In fact, Peter would rather have left for San Francisco than ________ in New York.

　　A) to stay

　　B) stayed

　　C) staying

　　D) having stayed(B)

　　48. He soon received promotion, for his superiors realized that he was a man of considerable ________.

　　A) ability

　　B) future

　　C) possibility

　　D) opportunity(A)

　　49. Britain ahs the highest ________ of road traffic in the world—over 60 cars for every mile of road.

　　A) popularity

　　B) density

　　C) intensity

　　D) prosperity(B)

　　50. How is it ________ your roommate’s request and yours are identical?

　　A) if

　　B) so

　　C) what

　　D) that(D)

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