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.It is.that.强调句强调句教材原句： 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，其它部分不变翻译：正是因为这个原因， 世界自然基金会不断地提供信息来激发公众对地球福利的兴趣It is.that.强调句It is.that.强调句典例分析强调句的基本结构:It is/was+被强调部分+thatwho+其他部分1 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.典例分析强调句的基本结构:It is/was+被强调部分+thatwho+其他部分1 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.典例分析强调句的疑问形式一般疑问句2 Was it you that put these books on my desk?典例分析强调句的疑问形式特殊疑问句2 How is it that he goes to school every day?典例分析强调句的疑问形式反义疑问句2 It was Tom who broke the window, wasnt it?典例分析对于“notuntil”句型的强调3The 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playingthatSum up: It is.that.强调句12It 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+only+状语结构引起的部分倒装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。

翻译：只有当我们学会和自然和谐相处，我们才不成为野生动植物和地球的威胁only+状语结构引起的部分倒装only+状语结构引起的部分倒装典例分析什么是部分倒装？1Only 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.什么是部分倒装？1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+状语中的状语指什么？2Only 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典例分析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1. Only if you eat the correct foods _be able to keep fit and stay healthy. 2. Only when the match was over in the afternoon _ they able to leave.3. _ with hard work can you expect a pay rise.完成句子考点追击will youwereOnlySum up: only+状语引起的部分倒装12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!。