《Great Scientists》教案

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　　《Great Scientists》教案
　　课时1
　　课题 Module 4 Great Scientists Grammar 课型 New
　　教学目标
　　1. Enable the students to understand the subjunctive mood
　　2. Help the students to learn how to do some exx about subjunctive mood
　　重点 Enable the students to understand the subjunctive mood
　　难点 Enable the students to understand the subjunctive mood
　　学情分析 The Ss can finish the task.
　　教具课件 1. A recorder 2. A projector 3. A puter
　　教法 Explanation---guidance---do the exx again
　　教学程序 教学内容（引入、例题、练习题、检测题等） 师生
　　活动
　　时间分配
　　Step 1
　　Step 2
　　Step 3
　　Step 4
　　Grammar
　　虚拟条件句：条件状语从句是非真实情况时，要用虚拟语气。
　　If条件句 主句
　　与现在事实相反 did(be动词用were) would(或could, should, might) do
　　与过去事实相反 had done would(或could, should, might) have done
　　与将来事实相反或可能相反 did(were) should do
　　were to do
　　would(或could, should, might) do
　　1.和现在时相反
　　1）If I were you, I would study hard.
　　2）If it rained, I would not be here now.
　　2.和过去时相反
　　1）If the doctor had e last night, the boy would have saved.
　　2）If I had not studied hard, I would have failed in the exam last term.
　　3.和将来事实相反
　　1) If it should rain tomorrow, we would stay at home.
　　2) If I were to go to the moon one day, I could see it with my own eyes.
　　3) If you missed the film tonight, you would feel sorry.
　　★注意问题：
　　1、If条件句中绝对不可出现“would”。
　　2、根据句中的时间状语，有时可能出现“混合虚拟”的情况，即主句可能是现在的情况，条件句也许是发生在过去的情况，但都是遵守上述句型。
　　eg: If you had worked hard, you would be very tired now.
　　3、在条件句中如果出现were, had, should可省去if，将主语与这些词倒装，例如：
　　Exercises
　　1) If the doctor had e last night, the boy would have saved.
　　Had the doctor e last night, the boy would have saved.
　　2) If I were to go to the moon one day, I would see it with my own eyes.
　　Were I to go to the moon one day, I would see it with my own eyes.
　　3) If it should rain tomorrow, we would stay at home.
　　Should it rain tomorrow, we would stay at home
　　1) If he ______ drunk, he wouldn’t have lost control of the car. (C)
　　A. wasn’t B. weren’t C. hasn’t been D. hadn’t been
　　2) I would have gone to the concert, if I _____ time. (A)
　　A. had had B. have had C. had D. would have had
　　3) _______ to tell us everything, we could try to solve his problem. (C)
　　A. If he is B. Were he C. Had he D. Be he
　　4) _______ I known it, I would have told you. (C)
　　A. Have B. If C. Had D. Having
　　5) ____ to the doctor right away, he might have been alive. (D)
　　A. If he went B. Were he gone C. Should he have gone D. Had he gone
　　6) If we ____ here ten minutes earlier, we ___ the bus. (D)
　　A. arrived/would catch B. arrived/would have caught
　　C. had arrived/had caught D. had arrived/would have caught
　　7) If I ____ more time, I would have gone with him. (C)
　　A. had B. had had C. have had D. would have
　　8) If he ___ to the teacher attentively, he ___ the answer to the problem now. (A)
　　A. had listened, would have known B. listened, would know
　　C. listened, would have known D. had listened, would know
　　9) ___, I would tambrella with me. (C)
　　A. Had I been you B. I were you C. Were I you D. I had been you
　　10) If you were older, I ____ you to go there yesterday. (B)
　　A. will allow B. should allow C. would have allowed D. had allowed
　　Grammar
　　名词性从句中的虚拟语气
　　1. 在表示命令、建议、要求、惊叹时的名词性从句中需用虚拟语气，基本句型：
　　主语＋(should）＋动词原形，如：
　　1). We suggested that the meeting should be held.
　　2) The suggestion that the meeting should be held was rejected.
　　3) It was suggested that the meeting should be held.
　　4) The suggestion is that the meeting should be held.
　　5) It was required that the crops should be harvested at once.
　　6) That is their demand that their wages be increased.
　　★suggest等动词后的宾语从句中的谓语动词用(should) + do,
　　这类动词的字头记忆口诀为: I drop caps.
　　具体为: insist, demand, desire, request(请求), require, order, propose(建议), mand(命令), ask(要求), advise, prefer, suggest
　　★注意:
　　insist
　　1) 表示坚持认为，真实语气
　　I insisted that the earth moves round the sun.
　　2）表示坚持要求某人该…，虚拟语气
　　I insisted that John had done it.
　　I insisted that John (should) do it.
　　★suggest 表示暗示，说明的意思时用真实语气
　　Her expression suggested that she was angry.
　　He suggested that we (should) go to school at once.
　　2.在It’s strange/important/necessary/surprising that…句式中, that 从句的谓语动词用(should) +do,如:
　　1) It’s strange that he (should) not e.
　　2) It’s important that you (should) asr parents for advice about your work.