高中英语人教大纲第三册：Unit9 Helth cre(第五课时).doc

The Fifth PeriodThe Subjunctive MoodTeaching Aim:Review the Subjunctive Mood to improve the students ability to use the English language.Teaching Important Point:Help the students to make a summary of all kinds of the sentence structures in which the Subjunctive Mood can be used.Teaching Difficult Point:Help the students to use the correct verb-form to show the Subjunctive Mood in different sentence structures.Teaching Methods:Revision,summary,explanation,inductive and practising methods.Teaching Aids:1.the multimedia2.the blackboardTeaching Procedures:Step GreetingsGreet the whole class as usual.Step Revision and Lead-inT:In Unit 8 and Unit 9,weve revised the use of the Subjunctive Mood.Now,Ill read three sentences to you.Listen carefully and tell in which sentence the Subjunctive Mood is used.Can you follow me?Ss:Yes.T:OK.Listen carefully.No.1,You are careful.No.2,Please be careful.No.3,If you had been more careful,you would not have made the same mistake again.Ss:In the third sentence,the Subjunctive Mood is used.T:Quite right.In the third sentence,a special group of verb-forms is used to talk about events or situations which were not certain to happen in the past.We know,in different cases,we use different verb-forms.Up to now,weve learnt many kinds of cases in which the Subjunctive Mood should be used.Right?Ss:Right.T:Today,lets make a summary of all the cases.Step Summary of the Subjunctive MoodT:First,lets revise the verb-forms in sentences of unreal condition.Please look at the sentences on the screen.(Teacher shows the following on the screen.)1.If he were not ill in bed,he might come to class.I would certainly go if I had time.2.If I hadnt forgotten your telephone number,I should have called you last Sunday.3.If I were to do it again tomorrow,I might do it in different ways.If there should be no water,there would be no life on earth.T:In the first pair of sentences,the past tense is used in the if-clause;“might/could+an infinitive” in the main clause.What kind of situation is talked about?(Bb:did/were,might/could/should/would do)Ss:“Unreal” or improbable present.T:Then what about the second sentence?Zhao Liang,you try,please.S1:The second sentence talks about things that did not happen in the past.The past perfect is used in the if-clause;“should have done” in the main clause.(Bb:had done;should/would/might/could have done)T:Quite right.Wang Ning,please try the third pair of sentences.S2:They are both about improbable future.“were to or should+an infinitive” is used in the if-clause;“would/might+an infinitive” in the main clause.T:Can the past tense be used in the if-clause?Ss:Yes.(Bb:did/were to/should do;would/might/could/should do)T:In addition,“were I/you/he etc.” “should I/you/he etc.”“had I/you/he etc.” can be used instead of “if I/you/he etc.were”,“if I/you/he etc.should” and “if I/you/he etc. had”.Do you still remember?Ss:Yes.T:OK.Now,please rewrite the sentences on the screen if possible.Any volunteers?S3:Were he not ill in bed,he might come to class.S4:Hadnt I forgotten your telephone number,I should have called you last Sunday.S5:Were I to do it again tomorrow,I might do it in different ways.S6:Should there be no water,there would be no life on earth.T:Nice work.But theres another case you should pay attention to,that is,the if-clause and the main clause dont talk about events or situations happening at the same time.In this case,the verb-form depends on its own meaning.Can you give some examples?Have a try,please.S7:If you hadnt seen that late film last night,you wouldnt be sleepy now.S8:If he had received six more votes,he would be our chairman now.S9:If I were you,I would have attended the lecture.T:Im glad that you can use it correctly.Next,lets revise the verb-forms after “wish” and “as if”.Look at the sentences on the screen.(Teacher shows the following on the screen.)1.I wish I knew her address.He works very hard as if he never in-tended to sleep.2.How I wish I had been able to say the rules without a mistake.He speaks English well as if he had studied in England.3.I wish he would try again.It seems as if it would rain.T:Whod like to make a summary according to the examples?S10:To express a present meaning,the past tense is used both after “wish” and “as if”;to express a past meaning,the past perfect tense is used after “wish” as well as “as if”;to express a future meaning,“ would+an infinitive”is used not only after “wish” but also after “as if”,and “could/should/might+an infinitive”is also possible.(Bb:wish/as if+did/were;had done;would/could/should/might+an infinitive)T:Well done.Thank you.Sit down,please.Next,lets revise the sentences in which “(should) do” is used to express the Subjunctive Mood.Look at the screen again. (Teacher shows the following on the screen.).in the Objective Clause after the verbs order,command,insist,demand,desire.request,recommend,propose,suggest and other verbs with similar meaninge.g.I suggest (that) we (should) hold a meeting tonight.They insisted(that) he(shuld) begin the work at once.He ordered (that) all (should) take part in the work.in the Predicative Clause or the Appositive clause after the nouns suggestion,order,proposal,advice,demand,request,requirement,etc.e.g.My suggestion is that we (should) get down to our work immediately.We all agree to your proposal that we (should) put on a short play next week.in the Subjective ClauseA.It is/was+p.p.(suggested,ordered,desired,insisted,required,demanded,requested,decided,proposed,urged,etc.)+that-clausee.g.It is desired that everyone(should) get everything ready by tonight.It is requested that Miss Zhang(should) give a performance at the party.B.It is/was+adj.(important,necessary,strange,natural,etc.)+that-clausee.g.It is necessary that you (should) attend the meeting.It is strange that he should say that. (Teacher and the students go through the examples together to make sure the students understand them.At the same time,teacher writes some words and structures on the Bb.After that,they go on to revise some other cases.)T:Well,lets revise some other cases in which the Subjunctive Mood is used.Look at the screen again.(Teacher shows the following on the screen and explains the different cases to the students.).in the Objective Clause after “would rather”e.g.Id rather you went home now.(present)Dont come tomorrow.Id rather you came next weekend.(future)Id rather you hadnt done that.(past).It is (high) time+that-clausee.g.Its(high) time(that) we went home.in the clause after “lest” and “in case”(should+do)e.g.He ran away lest he (should) be seen.She explained again and again in case he (should) misunderstand her.in the clause after “so that” and “in order that”(can/could/may/might/would+do)e.g.She stayed at home for a few days so that she might/could take care of her sick mother.He came ten minutes earlier in order that he might get a good seat.in the clause after “for fear that.”(should/may/might+do)e.g.He worked hard for fear that he should fail.after some prepositions “with,without,in,under,but for,etc.(like if-clause)”e.g.Without air,there would be no living things.With her help,I would do the experiment well.Under the leadership of a less experienced person,the experiment would have failed.I would have lost my head in that position.But for their help,we could not get over the difficulties.in some expressions or sentences for blessinge.g.Long live world peace!Heaven help us!May the friendship between our two peoples last forever.Oh,if he only knew how we miss him!He is,as it were,a walking dic-tionary. (Teacher writes some key words or sentence structures on the Bb while explaining.)Step PracticeT:Well,now lets do some exercises.Look at the screen.(Teacher shows the following on the screen and finishes it with the whole class.).Choose the best answers.1.If it_for the snow,we_the mountain yesterday.A.were not;could have climbedB.were not;could climbC.had not been;could have climbedD.had not been;could climb2.Without electricity human life_quite different today.A.isB.will beC.would have beenD.would be3.The old professor gave orders that the experiment_before 6.A.was finishedB.will finishC.be finishedD.shall be finished4. _your letter,I would have started off two days ago.A.If I receivedB.Should I receiveC.If I could have receivedD.Had I received5.If only I_to my parents advice!A.listeningB.listenC.am listeningD.had listened6.It is politely requested by the hotel management that radios_after 11 oclock at night.A.were not playedB.not to playC.not be playedD.did not play7.I feel I am so tired tonight.Well,it is time that you_.A.go to bedB.would go to bedC.went to bedD.are going to bed8.I would rather Mary_home next Sunday.A.goesB.wentC.will goD.is going9.Your advice that_till next week is reasonable.A.she waitsB.she waitC.wait sheD.she waited10.It is necessary that the lazy boy_the class meeting.A.will attendB.attendsC.attendD.attendedSuggested answers:1.C2.D3.C4.D5.D6.C7.C8.B9.B10.C(If time permits,teacher asks the students to do the following exercise on the screen in class.If not,assign it as the students homework.)Fill in the blanks with the right verb forms.1.If he_ (listen) to me,he would not be in such trouble now.2.When a pencil is partly in a glass of water,it looks as if it_ (break).3.But for the storm,we_ (arrive) earlier.4.Mark tried to tie the boat to the buoy so that it_ (hit) by other ships.5.The guard at the gate insisted that everybody_ (obey) the rules.6.Its time we_ (go) to school.7.We wish we_ (pay) more attention to our pronunciation.8.He made the suggestion that they_ (carry) on their conversation in French.9. _he_ (make) adequate preparations,we might have succeeded.10.Shall I open a window?Id rather you_（do） not.Suggested answers:1.had listened2.were broken3.should have arrived4.wouldnt be hit5.obey6.went7.had paid8.(should