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题目
题型:不详难度:来源:
We are now short          fresh water. Something must be done to prevent people       polluting it.
A. of;from     B. for;from        C. of;to
答案
A
解析

试题分析:句意:我们现在缺乏新鲜的水。必须做点什么来防止人们污染它。第一个空是一个固定的短语,be short of 短缺……;第二个空也是一个句型,prevent sb. from doing sth. 意为:阻止某人做某事。故选A。
核心考点
试题【We are now short          fresh water. Something must be done to prevent people 】;主要考察你对介词的分类等知识点的理解。[详细]
举一反三
We study many other subjects       English.
A. except  B. unless   C. besides
题型:不详难度:| 查看答案
Judy failed in this exam, since she is very strict ____ herself. She is sad.
A.inB.forC.withD.at

题型:不详难度:| 查看答案
--- You never feel worried before an exam, how can you?
---Well, I’ve been working hard all the time. Surely I am _________ any exam.
A.interested inB.afraid ofC.busy withD.ready for

题型:不详难度:| 查看答案
Are you ready? We’ll go out for a picnic ____ three o’clock.  
A.inB.afterC.forD.since

题型:不详难度:| 查看答案
My baseball is____ the floor, ____the table.  
A. under; on                B. on; under           C. in; under
题型:不详难度:| 查看答案
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