高二英語(yǔ)教案：NSEFC2BUnit16全單元教案新教材5thperiod

1、the fifth periodnon -finite verbsteaching aim:revise the non-finite verbs and non-finite passive form.get the students to do some exercises to master its usage,and correct the common mistakes that students make when doing exercises.teaching important point:master the usage of the non-finite verb for

2、m,especially how to choose the correct form when we use it.teaching difficult point:how to choose the correct form when the v.-ing form is used as adverbial and how to change the v.-ing form into a clause.teaching methods:review inductive,discussion methods.teaching aids:1.the blackboard2.the multim

3、ediateaching procedures:step greetings and lead-in(greet the students as usual.)t:in this class,wediscussll how touse the non-finiteverb.letdivides itintothreeparts,i.e.the infinitive,thev.-ing and the past participle.then we ll do some exercises to master itsusage and at last we ll do a test.ok.let

4、 s study the first part: the infinitive (write them on theblackboard.)step discussion(teacher lets students look at some sentences on the screen and pay attentionto theunder lined phrases.)t:please look at these sentences on the screen.(show the following on the screen.)i want to go shopping.(object

5、)2. to answer the question is not easy.(subject) 3.would you like anything to drink?(attribute)4.he went to help the farmers. (adverbial)5.she wanted you to ring her.(object complement)as you know,the infinitives in these sentences are used as subject,object,object complement,attribute and adverbial

6、 for purpose.maybe some of them are hard for you to master,but in fact they are very important.step summary the forms,the tensesand the usages of the infinitive and theinfinitive phraset:today let s sum up and review the forms and usages of the infinitives.please look at the diagram on the screen.(s

7、how the following on the screen.)第 1頁(yè)共 7頁(yè)forms of the infinitiveactivepassiveindefiniteto doto be doneperfectto have doneto have been donecontinuousto be doingperfect continuousto have been doingnegative formnot/never to dot:the tenses of the infinitive express time relatively to that of the predica

8、te verb.if the action expressed by the infinitive is of the same time as or of later time than that expressed bythe predicate verb,the infinitive or continuous forms should be used.if the action expressed bythe infinitive is of earlier time than that expressd by the predicated verb,the perfect infin

9、itive should be used.please look at the examples on the screen.(show the following on the screen.)i hope to visit beijing again.=i hope that i ll visit beijing again.he seemed to have known this.=it seemed that he had known this.he seems to be studying hard.=it seems that he is studying hard.t:atten

10、tion,please.(1)the infinitivewithout“ to ”isused afterthe verbs:make,have,let,feel,listento,hear,watch,look at,see,notice,observe,etc.(write them on the blackboard.)e.g.we saw him cross the street.i listened to her sing a song.but in the passive voice,the infinitive with“ to” must be used.e.g.he was

11、 seen to cross the street.she was heard to open the door.(2)the infinitive can be with“ to” or without “to ” after the verb “ help ” .e.g.he helped me(to)carry the books upstairs.step consolidation and practicet:now you have known the usages of the infinitive.let s do some exercise.please look at th

12、escreen.(show the following on the screen.)choose the best answer to fill in the blanks:1.they asked me_it a secret.a.to keepb.keepingc.to be keptd.kept2.the doctor did everything he could_the patient.a.saveb.to savec.savingd.saved3.they don t need_so early this time.a.leaveb.leftc.to leaved.leaving

13、4.could you lend me a pen_?a.to writeb.to write byc.to write ind.to write with5.it was foolish_you to give up what you rightly owned.a.forb.ofc.aboutd.from6.last summer i took a course on_.a.how to make dressesb.how dresses he made第 2頁(yè)共 7頁(yè)c.how to be made dressesd.how dresses to be made7.tom kept qu

14、iet about the accident_lose his job.a.so not as tob.so as not toc.so as to notd.not so as to8. the light in the office is still on. oh,i forgot_.a.turning it offb.turn it offc.to turn it offd.having turned it off9.we agreed_here but so far she hasn t turned up yet.a.having metb.meetingc.to meetd.to

15、have met10.john was made_the truck for a week as a punishment.a.to washb.washingc.washd.to be washingsuggested answers:1.a2.b3.c4.d5.b 6.a7.b8.c 9.c10.at:now let dealswithpart 2:thev.-ing(write iton the blackboard)please look at thescreen.pay attention to the function of the underlined parts.(show t

16、hem on the screen.)1.beating a child will do more harm than good.2.i hate writing letters.3.do you mind my making a suggestion?4.i m looking forward to seeing you at christmas.5.your hair needs cutting.(=your hair needs to be cut.)t:who can tell us the function of thev.-ing in each sentence?please t

17、ry your best.s1:i ll try.no“.1,beating ” is used as subject.no.2,3,4,5,all the v.-ing are used as objects.t:can we transform the second sentence into“ i hate to write letters ”?ss:no,we can t.t:you reight.inenglish,the v.-ingisonlyusedafter some verbs,theyare:admit,avoidconsider,delay,dislike,enjoy,

18、escape,excusefeellike,finish,giveup,can thelp,imagine,mind,miss,practise,suggest,understand.(write them on the bb.)e.g.have you considered getting a job in the city?i enjoy travelling abroad.attention,please.when the v.-ing is used after “ need,require and want ”,it can express the passive meaning.e

19、.g.the garden needs watering.(=the garden needs to be watered.)t:now,look at some other sentences on the screen.(show the following on the screen.)1.the train standing at platform eight is for wuhan.2.people shopping carry many plastic bags.3.hearing the noise,they immediately rushed out of the room

20、.4.having graduated from the college,he went to a factory.have a discussion in groups of four and then find out the function of thev.-ing(or presentparticiple)in each sentence.(teacher goes among the students to help them.)(a few minutes later)t:ok.who wants to say?s2:let me try.in no.1 and 2,thev.-

21、ing is used as attribute.in no.3 and 4,thev.-ing is used asadverbial.t:you re right.we should notice no.3 and 4.when the action takes place at the same time or第 3頁(yè)共 7頁(yè)immediately before the action indicated by the main verb,we use thev.-ing form.when the actionhas been finished before the action ind

22、icated by the main verb,we should use the perfect participle having done.is that clear?ss:yes.step practicet:now,let s do some exercises.look at the screen,please.change the clause intov.-aing form in each sentence.you can make any change if necessary.you may discuss in pairs.(show the following on

23、the blackboard)1.as peter was feeling ill,he decided to stay at home.2.when i had finished my homework,i began to preview my lessons.3.if you heat water,you can change it into steam.4.they stood at the east end of the bridge and waited for the bus.suggested answers:1.being ill,peter decided to stay

24、at home.2.having finished my homework,i began to preview my lessons.3.heating water,you can change it into steam.4.they stood at the east end of the bridge,waiting for the bus.t:from the sentences above,we can see that the v.-ing form can be used to express cause(1),time(2),condition(3)and manner or

25、 accompanied situation(4).generally speaking,when the v.-ing form is used to express cause,time or condition,it is often put before the main clause;when it is used to express manner or accompanied situation,it is often put after the main clause.are you clear about it?ss:yes.step consolidationt:now l

26、et dos some exercises on the screen.you can discuss in pairs.then i checkll the answers.(show the following on the screen.)complete these sentences with the given words using thev.-ing forms:1._a brave woman,the servant let him into the castle.(be)2._fire to the castle,the two escaped into the woods

27、.(set)3.with his heart_hard,he knocked at the door.(beat)4._for three days,the revolutionary arrived at the castle.(travel)5.while_near the gates,he saw a vegetable cart coming along the road.(wait)suggested answers:1.being2.having set3.beating4.having travelled5.waiting(a few minutes later,teacher

28、checks the answers.)t:now let s look at the third part:past participle.(write them on the blackboard.)we know that the past participlecan be used as attribute to modify a noun.now look atthese sentences.(show the following on the screen.)1.the stolen car was found by the police last night.2.i receiv

29、ed the letter written by my old friend jane.t:can you tell us the difference between the past participles used in these two sentences?s3:let me try.the past participle in the first sentence is put before the noun it modifies,but第 4頁(yè)共 7頁(yè)the one in the second sentence is put after the noun it modifies

30、.t:yes,you re right.does anyone know why?s4:i think it because in the first sentence,the past participle is only one word,butin thesecond sentence,it s a past participle phrase.t:that s right.now,look at some different sentences.(show the following on the screen.)1.don t speak until spoken to.2.give

31、n more time,we could do the work better.3.destroyed by the earthquake,the house had to be rebuilt.t:what are these past participles used as?ss:they re all used as adverbial.t:yes.yourightre.and we know that the past participle as adverbial can express differentadverbials,such as time,cause,condition

32、,manner.doyou know what the past participle in eachsentence expresses?who knows?s5:the past participlein thefirstsentence expresses time.thesecond one expressescondition.and the last one expresses cause.t:let s look at the blackboard.(teacher writes the following on the blackboard.)1.seen from the h

33、ill,our school looks more beautiful.2.seeing from the hill,we can see our beautiful school.t:look at these two sentences carefully.who can tell us the difference between them?s6:the first sentence uses the past participle as the adverbial while the second sentenceuses the present participle as the a

34、dverbial.t:good.do you know why?s7:because the subject in the first sentence is“ our school ”,but in the second sentence thesubject is “ we ” .t:very good.when we are using participles,we should pay attention to the subjects in thesentences,and the participle we use must have the same logical subjec

35、t as the subject in the sentence.if the subject in the sentence receives the action,we should use the past participle as adverbial;if the subject in the sentence does the action,we should use the present participle as adverbial.is that clear?ss:yes.step practicet:ok.now,look atthe screen.letdo s som

36、e more exercises.you may discuss with yourpartner.(show the following on the screen.)1.as soon as she entered the room,the girl caught sight of the flowers_by her mother.a.buyingb.being boughc.were boughtd.bought2._along the street,he came across his old friend.a.walkingb.walkedc.walkd.to walk3.the

37、man_li ming used to live here.a.calledb.callingc.to calld.call4.the sports meet_last week is very important.a.holdingb.being heldc.heldd.hold第 5頁(yè)共 7頁(yè)suggested answers:1.d2.a3.a4.cstep testt:that alls for the three parts.now let haves a test.you have to do it by yourself.after a while,i ll check the

38、answers.look at the screen.(show the following on the screen.)1._the past,our life is much better.a.comparing withb.be comparedc.to compare withd.compared with2.i went to see him,_him out.a.findingb.findc.only to findd.to finding3.he was so foolish_his car unlocked.a.to leaveb.that leavec.as to leaved.for him to leave4.why do you stand and watch the milk_over?a.boilingb.boiledc.from boilingd.having been boiled5.i regret_you that we