教育精品：Book6_U3_Grammarandusage.ppt
Grammar and usage华容一中华容一中 高二高二1306班班 吴维焱吴维焱January 8th,2015Unreal conditionalsModule 6 Units 3&4课件描述：课件描述：本课件通过文字、本课件通过文字、表格和图画表格和图画对对虚拟语气规则的讲解，使得复杂的虚拟语气规则的讲解，使得复杂的语法通俗明了，浅显易懂；还配上语法通俗明了，浅显易懂；还配上相应的练习加以巩固。相应的练习加以巩固。Zhou Xing Xings regretStep 1 情境导入曾经有一份真挚的感情放在我的面前，曾经有一份真挚的感情放在我的面前，我没有珍惜。等我失去的时候我才后我没有珍惜。等我失去的时候我才后悔莫及。悔莫及。If I had valued the true love when I got it,I wouldnt have greatly regretted when I lost it.如果上天能够给我一个再来一次的机会，如果上天能够给我一个再来一次的机会，我会对那个女孩子说三个字：我会对那个女孩子说三个字：“我爱你我爱你”。If God offered me another chance right now,I would utter t the three words to the girl,“I love you”.课前任务You probably wouldnt get much sleep if you lived near where a wedding reception was being held.If you came to Brunei,you would have to take off your shoes before going into someones house.1.1.一般条件句中虚拟语气的用法。一般条件句中虚拟语气的用法。2.2.错综时间条件句的虚拟语气。错综时间条件句的虚拟语气。3.3.省略省略ifif的虚拟语气倒装用法。的虚拟语气倒装用法。4.4.含蓄条件句的虚拟语气用法含蓄条件句的虚拟语气用法。（一）非真实条件句中虚拟语气的用法（一）非真实条件句中虚拟语气的用法Step 2 语法剖析表示与事实情况相反表示与事实情况相反 条件从句的谓语形式条件从句的谓语形式主句的谓语形式主句的谓语形式 表示与表示与现在事实现在事实情情况相反况相反(present)表示与表示与过去事实过去事实情情况相反况相反(past)表示与表示与将来事实将来事实情情况相反况相反(future)过去式过去式(did/were)(be常用常用 were)过去式过去式(did)/(were)should+do were to do过去完成式过去完成式(had+done)would/could/might/should+dowould/could/might/should+have donewould/could/might/should+do1.虚拟语气在条件从句中虚拟语气在条件从句中1.unreal present conditionals:If were/did ,would do 1.假如我有更多的时间，我就会学习英语。If I _time,I _ English.2.要不是她这么忙要不是她这么忙,她就会出席今天下午的会议她就会出席今天下午的会议了。了。If she _so busy,she _ the meeting this afternoon.Practice:had morewould studywere notwould attend2.unreal past conditionals:If had been/done,would/could/might have done 1)如果他抓紧时间，他本来能赶上那趟火车。如果他抓紧时间，他本来能赶上那趟火车。If he _,he _ the train.2)如果你昨天告诉他，他也许会提些建议了。如果你昨天告诉他，他也许会提些建议了。If you _ him yesterday,he _ some suggestions.had hurriedcould have caughthad toldmight have made3.unreal future conditionals:If were/did/should/were to,would/should/might do E.g.1)假如我要出国，我就会去文莱。假如我要出国，我就会去文莱。If I _ go abroad,I _ to Brunei.2)万一明天下雨，我们的运动会就推迟。万一明天下雨，我们的运动会就推迟。If it_ tomorrow,our sports meeting_ off.were towould goshould rainwould be put2.错综时间条件句错综时间条件句 虚拟条件句和主句的动作发生的时间 不一致。PRESENT PAST If Sam spoke Russian,he would have translated the letter for you.But Sam doesnt speak Russian and that is why he didnt translate the letter.If I were going to that concert tonight,I would be very excited.But I am not going to go to that concert tonight and that is why I am not excited.FUTURE PRESENT 1.如果他当时吃了药如果他当时吃了药,现在就痊愈了。现在就痊愈了。If he _ the medicine,he _ all right now.2.我要是你的话我要是你的话,我当时就听从他的建议了。我当时就听从他的建议了。If I _ you,I _his advice.had takenwould bewerewould have taken Practice:Practice:If从句中有were,had（助动词）,should时，省略if,将were,had,should移至主语前，实行倒装。1)If you should make a mistake,you should not be embarrassed.Should you make a mistake,you should not be embarrassed.3.省略省略if的虚拟语气的倒装的虚拟语气的倒装2)If you had told me earlier,I would not have this problem now.Had you told me earlier,I would not have this problem now.3)If you were to take the train,you would be there much sooner.Were you to take the train,you would be there much sooner.注意注意:如果省略的条件句中的谓语如果省略的条件句中的谓语动词是否定形式时动词是否定形式时,不能用动词的缩不能用动词的缩略形式略形式.我们可以说我们可以说:Were it not for the expense,I would go abroad now.但不但不说说:Werent it for _ she _ yesterday,she would meet the famous singer today.A.Hadnt;left B.Had;not leftB.C.If;didnt leave D.Didnt;leave TIPSB.Had;not left4.含蓄条件句的虚拟语气用法含蓄条件句的虚拟语气用法 虚拟的条件不是通过虚拟的条件不是通过if条件句，而是用一些条件句，而是用一些词或短语，如词或短语，如 with,without,otherwise,but(for)等暗示出来。等暗示出来。If I hadnt got your help,I wouldnt have passed the exam.Thanks to your help,otherwise I wouldnt have passed the exam.WithoutBut forIf it hadnt been for your help,I wouldnt have passed the exam.解题时要根据暗示部分和句意来判断时间，解题时要根据暗示部分和句意来判断时间，句子的谓语动词应参照句子的谓语动词应参照if大表格中主句的谓语大表格中主句的谓语动词动词形式。形式。（二）类似if用法的虚拟语气wish,as if/though后,现在相反 did/were;过去相反had done;将来相反s/w/c/m+do/be done even if/though=if用法（现在和过去）If only后，现在 did/were 过去had done 注意：注意：as if/though在某些语境中，如果不表示在某些语境中，如果不表示假设意义，就不必用虚拟语气。假设意义，就不必用虚拟语气。The fish smells as if it has gone bad.1.When a pencil is partly in a glass of water,it looks as if it _.A.breaks B.has broken C.were broken D.had been brokenC2.The actor is 58 years old.But he acts as if he _ a young man.A.is B.will be C.am D.wereD3.The clouds are getting darker and darker.It looks as if it _rain.A.is going to B.will C.was going to D.wouldA（三）固定短语或句型的虚拟用法1.It is(high/about)time that结构中的定语从句 从句谓语用从句谓语用 did/were或或should do/be done2.would rather后的宾语从句 现在现在/将来将来 did 过去过去 had done（四）(should)+动词原形的虚拟语气 表示建议、要求、命令等意义的动词或名词后的名词性从句中，谓语动词一律使用should+do/be done。(should可以省略)常考类似词如常考类似词如：suggest/suggestion（建议）,insist(坚决要求）,order,advise,request,desire,propose,urge,recommend等。注意：insist作“坚持认为，强调”，suggest作“暗示，表明”讲时，宾语从句不用不用虚拟语气。His attitude suggests that he isnt very interested.他的态度表明他并不非常感兴趣。The boy insists that he has no girlfriend.这个男孩坚持认为自己没有女朋友。Step 3 课中练 15 D A C B C 610 C B A A C 1115 D D A B CThank you!Thank you!
