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题目
题型:不详难度:来源:
How long do you think it will be _______ scientists succeed in providing a cure for cancer?
A.whenB.afterC.sinceD.before

答案
D
解析

试题分析:句意:你认为还需多长时间科学家就能成功提供治癌症的方法?when当……时候;after在……之后;since自从;it will be some time before...再过多长时间就。根据句意故选D。
点评:本题难度适中。固定句式是近几年高考常出现的一个考查项目,高中阶段的一些句式不是很多,提醒考生在平时多加注意它们的用法及意义。
即学即练: How long is it _______ we visited your mother?
A. when       B. after       C. since      D. before
解析:C。句意:自从我们看望你母亲以来到现在有多长时间了?
核心考点
试题【How long do you think it will be _______ scientists succeed in providing a cure 】;主要考察你对句式等知识点的理解。[详细]
举一反三
I made ___ clear to my team that I want our initial reviews completed this week.
A.thisB.thatC.itD.one

题型:不详难度:| 查看答案
He made another wonderful discovery, ______ of great importance to science.
A.which I think it isB.which I think is
C.which I think D.I think which is

题型:不详难度:| 查看答案
Please do me a favor----_____ my friend Mr. Smith to Youth Theater at 7:30 tonight.
A.to inviteB.invitingC.inviteD.invited

题型:不详难度:| 查看答案
One more week,______we will leave school and have a holiday.
A.so B.butC.andD.or

题型:不详难度:| 查看答案
       ,the more quickly he will learn a foreign language.
A.The stronger motivation will a person have
B.The stronger motivation has a person
C.The stronger motivation a person will have
D.The stronger motivation a person has

题型:不详难度:| 查看答案
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