She__________ __________ __________the post by a colleague.

(4)我是经你推荐买的。

I bought it__________ __________ __________.

答案：(1)recommend a good hotel

(2)recommended the book to

(3)was recommended for

(4)on your recommendation

5.1）单项填空

（1）The best way to deal with an impolite person is to__________him.

A.ignore B.neglect

C.omit D.overlook

提示：根据句意:"对付无礼之人的最佳方法就是置之不理。"ignore多指"有意忽略；或故意不理睬"；neglect指对自己职务、义务、家庭等没有给予应有的重视；如：neglect one's duty;omit指由于疏忽没注意而遗漏；overlook "遗漏；忽略"。

答案：A

(2)As he had been ill in bed for several months, he was__________of the new development in this field.

A.aware B.conscious

C.ignorant D.ignorance

提示：句意为:"由于他生病卧床已有数月，他对这个领域的新发展不甚了解。"be ignorant of..."对......不知道"；be aware of"意识到；了解到"；ignorance为名词，"无知；愚昧"；illiterate指"(既不会读，也不会写的)文盲"。

答案：C

6.单项填空

(1)The bad weather prevented us__________the project on time.

提示：根据句意，"坏天气使我们不能如期完成工程。"prevent sb. (from) doing sth. 阻止某人做某事。

答案：C

(2)The government should take measures to prevent the air __________.

A.to be polluted B.being polluted

C.polluted D.polluting

提示：句意为"政府应该采取措施阻止河流被污染。"

答案：B

7.1）单项填空

By__________coincidence we met in Beijing for the second time.

A.pure B.purify C.through D.poor

提示：句意为"我们第二次在北京见面纯属巧合。"

答案：A

2）完成句子

（1）一片药就能在10分钟内净化一升水。

One tablet will__________a litre of water in 10 minutes.

（2）这些衬衫是100%的纯棉。