公开课课件 北师大版英语选修七Unit 21 Grammar.ppt(课件中不含音视频素材)

1、If First ConditionalSecond ConditionalThird ConditionalMixed conditionalRevision:First ConditionalSummaryFirst Conditional(真实条件句真实条件句)：假设将来的情况可能发生假设将来的情况可能发生。If-clauseMain Clausewill/shall+dodo/doesIf I had a lot of money,I would buy a villa.Revision:Second ConditionalRevision:Second ConditionalSumm

2、arySecond Conditional：虚拟语气(和现在或将来事实相反的假设)。If-clauseMain Clausedid/werewould(could/should/might)+doWhat would have happened if you had had time last night?Revision:Third ConditionalIf I _time last night,I _ the film with you.had hadwould have enjoyedRevision:Third ConditionalRevision:Third Conditiona

3、lIf I _ time,I _ Liu Dehuas concert.had had timewould have gone toRevision:Second ConditionalSummaryThird Conditional：虚拟语气(和过去事实相反的假设)。If-clauseMain Clausehad donewould(could/should/might)+have doneIf clause Main clauseFirst conditionalSecond conditionalThird conditional Summarydo Will dowill/shall+

4、dodid/werewould(could/should/might)+do had donehad donewould(could/should/might)+have done Summary Verb forms of different conditionsDiscovering:mixed ConditionalIf peter was a more skillful player,he would have scored more points2nd conditional3rd conditionalIf Ben Johnson hadnt been caught,he woul

5、d still be the 100 meters record holder.Discovering:mixed ConditionalIf he had broken that record,he would be a world famous runner now 3rd conditional2nd conditional 3rd conditional 2nd conditional Discovering:mixed Conditional The of the Mixed Conditional If-clauseMain Clause Had done had donewoul

6、d(could/should/might)+do did/wereWould.+have doneDiscovering:mixed ConditionalEx:If they hadnt invited me to the party,I wouldnt be here.They invited me to the party so I am here.1.If peter was a more skillful player,he would have scored more pointsPeter is not a skillful player,he didnt score more

7、pointsIf Ben Johnson hadnt been caught,he would still be the 100 meters record holder.Ben was caught,and he is not the 100meters record holderIf he had broken that record,he would be a world famous runner now.He didnt break the record so he isnt famous nowDiscovering:mixed Conditional The of the Mix

8、ed ConditionalDiscovering:mixed ConditionalWe use the Mixed Conditional to talk about 假设的假设的过去过去事件可能对事件可能对现在现在的影响的影响 假设的假设的现在现在事件可能对事件可能对过去过去的影响的影响PracticeIf I_ all night,I _tired now.hadnt workedwouldnt feel现在现在过去过去If I _ you,I _shopping yesterday.werewould have gone现在现在过去过去If I had a dictionary,I

9、would have lent(lend)it to you yesterday.If they had studied(study)hard,they would be college students now.If Mary hadnt been caught(not be catch)in the rain that day,she would not have(not have)a fever now.If I were you，I wouldnt have missed(not miss)the film last nightIf you had asked(ask)him when

10、 you saw him last time，you would know(know)what to do nowComplete the sentences with the correct form of the verbs in brackets.According to the Chinese,complete the following sentences.1.如果他遵照医生的劝告，现在病就好了。If he had followed the doctors advice，he would recover already 2.如果我当时在学校用功读书，我现在就有一个更好的工作了。If

11、I had studied harder at school,I would have a better job now.3.如果我不害怕蜘蛛的话，我就会把它抓起来的。如果我不害怕蜘蛛的话，我就会把它抓起来的。If I wasnt afraid of spiders,I would have picked it up.4.要是他们一大早就出发的话，再过半个小时就要是他们一大早就出发的话，再过半个小时就该到了。该到了。If they had started in the early morning,they would arrive in half an hour5.如果昨晚下雨的话，今天就要凉

12、快些了。如果昨晚下雨的话，今天就要凉快些了。If it had rained last night,it would be cooler today.1.If you had gone to a doctor,you _ all right now.A.are B.were C.would have been D.would be2.It is hard to imagine what I would be doing today if I _ in love,at the age of seven,with the Melida Lox Library,in my hometown.A.wo

13、uldnt have fallen B.had not fallenC.should fall D.were to fallPractice:third Conditional3.I was very busy yesterday,otherwise I _ to the meeting.A.came B.would comeC.had come D.would have come4.If I _ with her last summer,I _ on very well with her now.A.worked;am gettingB.had worked;would getC.had w

14、orked;would have gotD.had worked;will get5.If it _ yesterday,we could play football on the sports ground now.A.didnt snow B.hasnt snowedC.hadnt snowed D.werent snowingPractice:third ConditionalHomework1.Ex45 on page 802.Write a short passage by using the words,phrases and conditionals learnt in class.(You feel regret at your stupid mistakes.)