北师大版必修五U15 L1(Grammar)第三条件句

1、Unit 15 Lesson 1 Grammar To preview First and Second Conditional sentences. To practice using Third Conditional sentences.Objectives 学习目标 ifWhat will you do if it rains tomorrow?1. I will stay at home if it rains tomorrow.2.Well have lessons in the classroom if it rains tomorrow.3.Well visit the mus

2、eum if it rains tomorrow.4.The football match will be put off if _.it rains.5. Information _(look up) in the Internet if it rains.will be looked upTask1 Interview your partnerWhat will you do if it is fine tomorrow?假设将来的情况可能发生。假设将来的情况可能发生。条件从句一般现在时 主句shall/will+动词原形First conditional：真实条件句：真实条件句Summa

3、rize:Task2. Choose one of the topics and discuss it in groups.Suppose you won a lot of money . What would you do with the money? What would you do if you won the lottery?1. If I won the lottery,I would2. If I won the lottery, I would buy an expensive car. 3. If I had a lot of money, I would buy a bi

4、g house.4.If I had a lot of money now, I would travel around the world.5.If it were fine now,I would go shopping.6. If I _a teacher, Iwere时时 间间 If If条件句谓语动词条件句谓语动词主句谓语动词主句谓语动词现在现在一般过去时一般过去时(be 动词动词 用用were)would should + docouldmight同现在事实相反的假设First conditional:Summarize: If the sun _(rise) from the w

5、est tomorrow, I _(lend) you some money. If the earth _(stop) turning, what _( happen)?时时 间间 If If条件句谓语动词条件句谓语动词主句谓语动词主句谓语动词将来将来一般过去时一般过去时(be 动词动词 用用were)were to doshould dowould should + do sthcouldmightrosewould lendwere to stopwould happen 1. Passage 1: In the past, if someone like me _ to get int

6、o university through the college exam, he _ no chance of getting a degree.fail to get into university through the college examget a degreehad failedwould have had 2. Passage 3: In the past, if I _ to see them, I _ visit them in person.had wantedwould have had to3.If I _time last night, I _ to see th

7、e film with you .had hadwould have gone4.If he more carefully, he the car accident yesterday.had driven would not have had 5.If I how to swim then, I trapped in this island.had learnt would not have been 时时 间间 If If条件句谓语动条件句谓语动词词主句谓语动词主句谓语动词过去过去过去完成时过去完成时 had donewould should + have done couldmight与

8、过去事实相反的假设Third ConditionalSummarize:Task3.Solve problems. Suppose you failed the math exam last week. You really regretted. Now you say to yourself.went to Londongot this jobfell in lovemet Jennygot marriedhad childrenbought this computer gamehad the idea for a computer companystarted the factorywen

9、t to London If I hadnt gone to London, I wouldnt have got this job. If I hadnt got this job, I wouldnt have met Jenny. If Make up a story according to the given clues.非真实条件句中的虚拟语气非真实条件句中的虚拟语气时时 间间 If If条件句谓语动词条件句谓语动词主句谓语动词主句谓语动词过去过去现在现在将来将来过去完成时过去完成时would should +have done sthcouldmight一般过去时一般过去时be

10、动词动词 用用werewould should + do sthcouldmight一般过去时一般过去时be 动词动词 用用wereshould dowere to dowould should + do sthcouldMightExercises 1. If I _ (be) not at office tomorrow, you can leave the documents to my secretary. 2. If you heat ice, it _ (turn) to water 3. If I _(finish) the letter, Ill post it tomorro

11、wamwill turn/turnsfinish.1. I am not free today. If I _（be）free today, I _ (go) and visit some of my friends .2. We missed the bus. Mother complained “If we _ (arrive) here ten minutes earlier, we _(catch) the bus.” 3. - Do you think Tom will come to my party? - No. If he _(come), I would be very gl

12、ad.werewould go had arrived would have caughtwere to come非真实条件句中的虚拟语气非真实条件句中的虚拟语气时时 间间 If If条件句谓语动词条件句谓语动词主句谓语动词主句谓语动词过去过去现在现在将来将来过去完成时过去完成时would should +have done sthcouldmight一般过去时一般过去时be 动词动词 用用werewould should + do sthcouldmight一般过去时一般过去时be 动词动词 用用wereshould dowere to dowould should + do sthcoul

13、dMightPractice1 Tell what the following people are thinking.Two-year-old: If I _(can) talk, I _(tell) my mother that I hate peas.14 year-old: I _(be) happier if I _(can) drive. 16-year-old: If I _(have) a car, my friends,I_ (go) out every night.19-year-old: If I _(have) a lot of money,I _(attend) a

14、private(私立的私立的) university. could would tell would be could would attend had had could goPractice 2 1.I _ (study) English when I was a child if I _(know) the importance (重要性重要性)of it. 2.I didnt see your sister at the meeting. If she_ (come), she_ (meet) my brother. 3. Miss Jiang explained the homewo

15、rk to the class yesterday. If Judy _(pay) more attention at the time, he_ (not miss) her instructions(介绍介绍). would have studied had known had come would have met had paid would not have missed Practice3 1.If it _ (rain) tomorrow, we _ (not go) out.2. I dont like exams. If there _ (be) no exam tomorr

16、ow, I _ (see) a movie.3. Eason doesnt think he will ever win a singing Competition（比赛）（比赛）. If, by chance, he _ (win), he _ (spend) the prize money on a computer. should rain/were to rain/rained would not go would see would spendwere/should be were to win/should win/wonIf the God _(give) meanother c

17、hance，I_ (tell)the girl three words: I love her! If our love _ (have to) be set a time limit, I wish it _ (be)10,000 years! should /were to give/gave would tellhad to would be 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：我爱你。我会对那个女孩子说三个字：我爱你。如果非要在这份爱上加上一个期限，我希望是如果非要在这份爱上加上一个期限，我希望是-一万年一万年! 假如我是你

18、，我会放弃吸烟的。假如我是你，我会放弃吸烟的。 If I were you, I would give up smoking. Were I you, I would give up smoking. 非真实条件句要注意非真实条件句要注意1: 条件句条件句If 可以省略，条件句变为倒装句可以省略，条件句变为倒装句 若非真实条件句中有若非真实条件句中有 were, had, should 等词时，可省略等词时，可省略 if, 而将而将 were, had, should 移到句首。移到句首。Translate the sentencePractice ：Say them in another w

19、ay If I had had time, I would have run round that lake again.= _ time, I would have run round that lake again. If there should be a flood, what should we do? =_a flood, what should we do?Had I hadShould there be Fill in the blank: 1. Mike failed the college entrance exam. His mother said to him “ If

20、 you _ (work) hard at school, you _( be) a college student now. 非真实条件句要注意非真实条件句要注意2: 错综时间条件句错综时间条件句(混合条件句）：混合条件句）： 主句和条件句用不同的时态，主句和从句中主句和条件句用不同的时态，主句和从句中的动词根据的动词根据各自各自所表示的动作发生的时间，所表示的动作发生的时间，采用前面表格中相应的形式。采用前面表格中相应的形式。had worked would be Practice 1. If you _ (prepare) for your lessons yesterday, you

21、_ (have) so many difficulties now. 2. If I were you, I _ (take) his advice. Look, you have so many problems working out the matter. 3. If you _ the doctor, you _all right now. 4. I only got the third prize. If I _(get) the first prize, I _ (fly) to London to have a one-week journey next month.had pr

22、eparedwouldnt have would have taken had got would flyhad listened to would beFill in the blank 1. Without air, there _(be) no living things. 非真实条件句要注意非真实条件句要注意3: 含蓄非真实条件句：含蓄非真实条件句： 不用不用if从句表示条件，而用从句表示条件，而用without, but for(要要不是）不是）otherwise, supposing (假设假设)等表示假等表示假设，或者通过上下文的语境来代替条件句。设，或者通过上下文的语境来代替条

23、件句。would bePractice 1. But for the storm, we _ (arrive) earlier . 2. She wasnt feeling very well. Otherwise she _(leave) the meeting so early. 3. Supposing there is no electricity, life _(be) quite different toady. 4. I _(help) you, but I was too busy.would have arrivedwouldnt have leftwould bewould

24、 have helped综合练习：语法填空综合练习：语法填空 It is necessary that we keep in mind yesterday, make good use of today and think about tomorrow. If there _(be) the Communist Party（共产党）（共产党）, there would not have been the foundation of New China. If China had not opened to the world, we _ (lead) a poor life now. _ th

25、e development of our country, we wouldnt enjoy the rich life today.had not been would leadWithout 综合练习综合练习2：完成句子：完成句子 1.A girl applicant complained “ _ I a boy, they _me the job.” “我要是男的，他们就会把这份工作给我。我要是男的，他们就会把这份工作给我。” 2. But for the kind man, he _ of hunger 30 years ago. 要不是那个好心人，要不是那个好心人，他三十年前就会死于

26、饥饿。他三十年前就会死于饥饿。 3.I was caught in a traffic jam. Otherwise _here by lunchtime.我我堵车了。否则午饭前就到了。堵车了。否则午饭前就到了。 4. 如果我们没有误了那趟火车，现在我们正在家如果我们没有误了那趟火车，现在我们正在家里吃晚饭。里吃晚饭。If we _, we _ supper at home now. would have givenwere would have diedI would have arrived had not missed would be having综合练习综合练习3：Multiple

27、Choice 1. It is hard for me to imagine what I would be doing today if I _ in love, at the age of seven, with the library in my hometown. (02上海上海) A.wouldnt have fallen B. had not fallen C.should fall D. were to fall 2._ for the free tickets, I wouldnt have gone to the films so often.(上海上海95)A. If it is not B. Were it notC. Had it not been D. If they were not 3. If you _ him yesterday, you would know what