【精品】高中英语（人教大纲）第三册：Unit10 American literature(第五课时)

1、The Fifth PeriodThe Tenses of VerbsTeaching Aims:1.Review the usages of the Present Indefinite,the Present Continuous,the Present Perfect,the Past Indefinite,the Past Continuous,the Past Perfect,the Future Indefinite,the Past Future.2.Master the differences between the Past Indefinite and the Past P

2、erfect Tenses.3.Master the differences between the Past Indefinite and the Present Perfect Tenses.Teaching Important Point:Master the structures and the usages of all the verb tenses.Teaching Difficult Point:The differences between the Past Indefinite and the Past Perfect;the differences between the

3、 Past Indefinite and the Present Perfect.Teaching Method:Review,inductive and practice methods.Teaching Aids:1.a computer2.the blackboardTeaching Procedures:Step GreetingsGreet the whole class as usual.Step RevisionT:In the third period,weve done some exercises to revise all the verb tenses,includin

4、g the Present Indefinite,the Present Continuous,the Present Perfect,the Past Indefinite,the Past Continuous,the Past Perfect,the Future Indefinite and the Future Past.Now I want some one of you to write down the forms of each tense with the verb “keep” as an example.Any volunteer?(One of the student

5、s comes to the blackboard and writes on the blackboard.)T:(After that) Quite right.Thank you.You can go back to your seat now.Well,lets revise the usages of them.Step Explanation of the Verb Tenses (Teacher shows the following on the screen.)Choose the best answers:1.(NMET 2000)The reporter said tha

6、t the UFO_east to west when he saw it.A.was travellingB.travelledC.had been travellingD.was to travel2.(NMET 2000春季，北京）Old McDonald gave up smoking for a while,but soon_to his old ways.A.returnedB.returnsC.was returningD.had returned3.(2001年春季，上海）The new suspension bridge_by the end of last month.A.

7、has been designedB.had been designedC.was designedD.would be designed4.I_ten minutes to decide whether I should reject the offer.A.gaveB.was givenC.was givingD.had given5.My brother_while he_his bicycle and hurt himself.A.fell;was ridingB.fell;were ridingC.had fallen;rodeD.had fallen;was riding6.The

8、 Police found that the house_and a lot of things_.A.has broken into;has been stolenB.had been broken into;stolenC.has been broken into;stolenD.had broken into;had been stolen7.(NMET 1994)I dont really work here,I_until the new secretary arrives.A.just help outB.have just helped outC.am just helping

9、outD.will just help out8.(NMET 1994)Im sorry to keep you waiting.Oh,not at all.I_here only a few minutes.A.have beenB.had beenC.wasD.will be9.New problems_every day.A.deal withB.are dealing withC.are dealt withD.are dealt10.How many students in your class_the sports meet to be held next week?A.take

10、part inB.are taking part inC.will take part inD.would take part inT:Now lets do the exercises on the screen.Whod like to try the first one?S:Ill try.I think the correct answer is A.T:Can you tell us why?S:I think in this sentence there are two actions.The past continuous “was travelling” here is use

11、d in a sentence together with the past action “saw”.When this happens,the past continuous usually refers to a longer “background”action or situation.The Past indefinite usually refers to a shorter action or event that happened in the middle of the longer one,or interrupt it.T:Very good.Now lets do t

12、he second one.Who will try?S:Ill try.The best answer is also A.I think there are two actions in this sentence.The first action happened first and then the other happened.So we should use the past indefinite tense in the sentence.T:OK.This is the commonest usage of the past indefinite.I think you can

13、 use it correctly,can you?Ss:Yes.T:Good.Now,lets continue.Next one,who knows?S:.Suggested answers for 310:3.(B) The Past Perfect Passive should be used in this sentence.From the adverbial in this sentence “by the end of last month”,we know that the action “design”takes place before the adverial of t

14、ime.Besides,“bridge”is the subject of this sentence,and “design” is the verb,so the Passive Voice should be used.4.(B) From the subject and verb,we know that the Passive Voice should be used.This is a very common situation.It just expresses an action happening in the past.5.(A) In this sentence ther

15、e are three actions.“Fell” and “hurt”happened during the period when he “was riding” his bicycle.6.(B) From the verb “found”,we know that neither A nor C is correct.And we know that the subject of the object clause is “the house”,and the verb is “break into”,so the Passive Voice should be used.7.(C)

16、 The sentence talks about the action and the situation that are already going on at the moment of speaking.8.(A) The Present Perfect is used to talk about actions and situations which began in the past and have continued up to the present when we speak or just before.9.(C) From the adverbial “every

17、day”,we know that present indefinite should be used in this sentence.This is a very common situation.It expresses an action which happens regularly.10.(C) The adverbial “next week” tells us that the action “take part in” happens in the future.So the Future Indefinite is used here.If we want to say “

18、He told me that the majority of students in his class would take part in the sports meet to be held the next week,”we should use the past future tense.The adverbial in this sentence is “the next week”,not “next week”.Step Practice and ConsolidationT:Now,lets do more exercises to review the verb tens

19、es of different kinds.Please look at the exercise on the screen.It is an interesting story about the word “freeze”.Please read the passage first and then fill in the blanks with the verbs in their correct tenses.Put the verbs in brackets into the correct tense.There is one word which you must learn

20、before you_ (visit) the USA.That is “Freeze!”If you_ (not hear) the word in an American movie,this is what it_ (mean).It (mean) “Stand still and dont move.”Police officers_ (use) it when they _ (be) ready to use their guns.If the person_ (not obey) the order and (move),he or she _ (shoot).One evenin

21、g in Los Angeles,someone_ (ring) the bell of a house.It_ (be) a dangerous area at night,so the owner of the house_ (take) his gun with him when he (answer) the door.He_ (open) the door and_ (see) a person,who_ (turn) round and_ (start) walking away from the house.The owner_ (cry)“Freeze!”,but the ma

22、n _ (go) on walking.The owner(think) he_ (try) to escape,so he (shoot) him dead.Later,the sad story _ (discover).The dead man_ (be) a Japanese student.He (go) to visit a friend,but he_ (can) not remember the number of the house.When he (realize) that he_ (go) to the wrong house,he _ (turn) round to leave.He_ (not know) much English and so he_ (not understand) the command “Freeze!”Suggested answers:visit;have not heard;means;means;use;are;does not obey;moves;will be shot;rang;was;took;answered;opened;saw;turn