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题目
题型:不详难度:来源:
_____the beginning of the 19th century did scientists know that all matter is made up of atoms.
A,At     B,By     C,Up to     D,Not until
答案
D
解析

试题分析:句子用了部分倒装,所以前面用Not until
点评:句首状语为否定词或半否定词的句子。这类词或短语主要有never, neither, nor, little, seldom(很少,不常), rarely(很少,罕有), hardly, scarcely(几乎不,简直没有), no sooner(立即), not only, in no way(决不), at no time, few, not, no等, 用部分倒装。部分倒装是把be动词、情态动词、助动词放到主语之前。如果句子中没有这些词,要在主语之前加助动词do / does / did等,而把原来的谓语动词变成原形放在主语之后。
核心考点
试题【_____the beginning of the 19th century did scientists know that all matter is ma】;主要考察你对倒装句等知识点的理解。[详细]
举一反三
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A,Only if,willyou     B,Onlyif,you will     C,Unless,will you     D,Unless,you will
题型:不详难度:| 查看答案
________, his idea was accepted by all the people at the meeting.
A.Strange as might it soundB.As it might sound strange
C.As strange it might soundD.Strange as it might sound

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— What  are you going to do this weekend?
— ______, I’m going to visit the Nature Museum.
A.If anythingB.If everC.If possibleD.If busy

题型:不详难度:| 查看答案
Never _____________ of being admitted to Oxford University.
A.have I dreamedB.did I dreamC.I have dreamedD.I dreamed

题型:不详难度:| 查看答案
Then ____ that the war was over.
A.the news cameB.came the news
C.did the news comeD.did come the news

题型:不详难度:| 查看答案
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