题目内容

2．--Do you think Mary will pass the exam this time？
-I think so．She_____for it for months．（　　）
A．is preparingB．was preparing
C．has been preparingD．had been preparing

分析 --你认为玛丽这次会通过考试吗？
---我认为会的．她为这次考试准备了数月了．

解答 答案：C．根据Do you think Mary will pass the exam this time可知考试还没有进行，所以她现在还在为考试做准备，而for months表示准备工作从过去开始一直到现在，所以用现在完成进行时，答案是C．D是过去完成进行时．

点评 考查现在完成进行时．prepare和prepare for 的用法
1）prepare：准备，后接直接准备的对象，谓语动作直接体现在宾语上．
eg．Mother is preparing lunch．（母亲正在准备午饭．）
2）prepare for：为…作准备，for 后的宾语为准备的目的．
eg．The students are preparing for the exam．（学生们正在为考试作准备．）

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