小学二年级英语语法：only在句首要倒装情况.docx

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小学二年级英语语法：only在句首要倒装情况这篇关于小学二年级英语，是特地为大家整理的，盼望对大家有所关心！Only in this way,can you learn English well.Only after being asked three times did he come to the meeting.假如句子为主从复合句，则主句倒装，从句不倒装Only when he is seriously ill,does he ever stay in bed.部分倒装是指将谓语的一部分如助动词或情态倒装至主语之前。假如句中的谓语没有助动词或情态动词，则需添加助动词do,does或did，并将其置于主语之前。1)句首为否认或半否认的词语，如no,not,never,seldom,little,hardly,at no time,in no way,not until…等。Never have I seen such a performance.Nowhere will you find the answer to this question.Not until the child fell asleep did the mother leave the room.当Not until引出主从复合句，主句倒装，从句不倒装。留意：如否认词不在句首不倒装。I have never seen such a performance.The mother didn’t leave the room until the child fell asleep.典型例题1)Why can’t I smoke here?At no time___in the meeting-room A.is smoking permittedB.smoking is permitted C.smoking is it permittedD.does smoking permit答案A.这是一个倒装问题。当否认词语置于句首以表示强调时，其句中的主谓须用倒装结构。这些否认词包括no,little,hardly,seldom,never,not only,not until等。此题的正常语序是Smoking is permitted in the meeting-room at no time.2)Not until the early years of the 19th century___what heat is.A.man did know B.man know C.didn’t man know D.did man know答案D.看到Not until…的句型，我们知道为一倒装句，答案在C，D中选一个。改写为正常语序为，Man did not know what heat is until the early years of the 19th.如今将not提前，后面就不能再用否认了,否则意思就变了。