Unit 2 重点语法精讲1 课件- 高一上学期英语人教版（2019）必修第二册.pptx

It is.that.强调句,教材原句： It is for this reason that the WWF constantly put up information to stir up public interest in the welfare of the planet.,句型分析：本句使用强调句It isthat结构，把需要强调的部分放在It is和that中间，其它部分不变。,It is.that.强调句,It is.that.强调句,I came across them in the club two days ago. It was I who came across them in the club two days ago. It was them that I came across in the club two days ago.,It was in the club that I came across them two days ago. It was two days ago that I came across them in the club.,此句型可强调除谓语以外的其它句中成分,I came across them in the club two days ago.,Was it you that put these books on my desk?,How is it that he goes to school every day?,It was Tom who broke the window, wasnt it?,The child didnt fall asleep until his mother leave the room.=It was not until his mother leave the room that the child fell asleep.,1.如果强调句子的主语，后面的谓语动词应和被强调部分的人称和数保持一致。It is I that am going to Nanjing next week.,特别提醒,2. 将it iswas .that去掉来验证该句是否是强调句It was because he was ill that he didnt come to our party.It was a pity that he didnt come on time.It was at 10 oclock that he returned home.,特别提醒,1. It was _ (play)computer games that cost the boy a lot of money.2. It was not until near the end of the letter _she mentioned her own plan.,完成句子。,考点追击,playing,that,Sum up: It is.that.强调句,It is/was+被强调部分+thatwho+其他部分,将it iswas .that去掉来验证该句是否是强调句,only+状语结构引起的部分倒装,教材原句： Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.,句型分析：本句使用部分倒装结构，当only +状语位于句首时，要部分倒装。,only+状语结构引起的部分倒装,only+状语结构引起的部分倒装,Only in this way can he solve the problem.Only after my friend came was the computer repaired. Only then did he find out the truth.,部分倒装就是谓语的一部分位于主语前;也就是把句中的情态动词、助动词或be动词移至主语前，谓语动词依然在主语后面。,Only then did we realize that we were wrong.Only by working hard can you succeed.Only when the war was over were the villagers able to return to their homes.,副词,介词短语,状语从句,1.only所修饰的状语从句不倒装，主句倒装。Only when did he return did we find out the truth.Only when he returned did we find the truth.,特别提醒,2.only修饰句子主语时，句子不倒装。 Only can he answer the question. Only he can answer the question.,特别提醒,Only if you eat the correct foods _be able to keep fit and stay healthy. Only when the match was over in the afternoon _ they able to leave._ with hard work can you expect a pay rise.,完成句子。,考点追击,will you,were,Only,Sum up: only+状语引起的部分倒装,部分倒装就是谓语的一部分位于主语前,状语一般指副词、介词短语和状语从句,Bye-bye!,