人教版高考英语一轮总复习精品课件 必修1 Unit 4 Earthquakes.ppt

重点句型透视1.asif引导表语从句或状语从句[教材原句]Itseemedasiftheworldwasatanend!仿佛到了世界末日!【练会】单句语法填空①Thekidsareveryfriendlywithherandevenlookuptoherasifshe(be)theirownmother.?②Itseemsasifyou(be)reallyenthusiasticaboutChineseculture.SoIsuggestyouapplyforPekingUniversity,oneofthebestuniversitiesinChina.?③Jackwasn’tsayinganythingbuttheteachersmiledathimasifhe(do)somethingveryclever.?werearehaddone【写美】句式升级·背诵④Therescueworkerwalkedhereandthereonthedamasifhewaslookingforsomething.→Therescueworkerwalkedhereandthereonthedamasif.(用省略句改写)?lookingforsomething归纳(1)asif从句用陈述语气:从句表示的情况是真实的或极有可能发生的(2)asif从句用虚拟语气:①从句用一般过去时(与现在的事实相反)②从句用过去完成时(与过去的事实相反)③从句用would/could/mightdo形式(与将来的事实相反)点津asthough/if引导的从句中的主语和主句主语一致,且含有be动词时,从句中的主语和be动词常常可以省略。佳句PaullookedoutofthebackwindowandsawthewolfstandingoverMac’sbicycleasifitwereakill.保罗从后窗往外看,看见那只狼站在麦克的自行车旁边,就好像它是被杀死的动物一样。2.部分否定[教材原句]Allhopewasnotlost.不是所有的希望都破灭了。【练会】微写作①我同意你讲的大多数内容,但并非同意你讲的全部。Iagreewithmostofwhatyousaid,butI.?②不是所有的付出都会有收获,但所有的收获都必须有付出。willbeharvested,butalltheharvestmustbepaid.?don’tagreewitheverything/allNotalltheefforts【写美】句型转换·背诵③Noteverythingshedidpleasedhim.→(改为全部否定)?④Bothofthemarenotmybrothers.→(改为全部否定)?Nothingshedidpleasedhim.Neitherofthemismybrother.归纳all...not=notall...部分否定,也称半否定。(1)具有总括意义的代词(each,everybody,everything,all,both等)、形容词(complete,whole等)和副词(completely,always,wholly,altogether等)与否定词not连用,构成部分否定,表示“不都;并非都”。(2)no,none,never,nobody,neither,nothing,nomore,nolonger等表示否定意义的词与谓语一起使用构成全部否定。佳句Nothingintheworldisdifficultifonesetshismindtoit.[谚]世上无难事,只怕有心人。3测效果课堂评价Ⅰ.单句语法填空——分层级强化高频考点A组基础必练1.Hishouse(destroy)intheearthquakelastyearandhehadtobuildanewone.?2.Onarrivingthere,weexpressedo