2020-2021学年北师大版必修二Unit4CyberspaceLesson3Grammar

1 北师大版高中英语导学案 班级： 姓名： 课题 Unit 4 Lesson3 Virtual Reality 主备人 课型 Grammar 审核人 时间 11 月 24 日 领导签字 学习 目标 掌握 if 引导的真实条件句与虚拟条件句 导学过程 笔记 2 一.【课前复习与检测】5min if 引导的条件状语从句 要点一 真实条件句和虚拟条件句 ◆用法归纳 if 引导的条件状语从句分为真实条件句和虚拟条件句 两种。 （1）真实条件句：假设的情况可能发生，是真实条件，用陈述语气。 主句是一般将来时，则从句用一般现在时表示将来。（主 将从现） If it doesn’t rain tomorrow，I ________ （go）for a picnic. _____we don’t stop climate change,many animals and plants in the world will be gone. （2）虚拟条件句：假设的情况根本不可能实现或实现的可能性很小， 主句和从句都用虚拟语气。 If I __ you，I would not reject his suggestion. 二、【课堂学习研讨】(小组合作探究) 20min 要点二 虚拟条件句 3 ◆单句语法填空 (1)［词汇复现］If I ________ （know） his telephone number，I would get in touch with him. (2) ［词汇复现］If I ________ （be） you，I would follow her suggestion. (3) ［词 汇 复 现］If I ___________ （study） hard，my dream would have come true. (4) ［词汇复现］If I had got there earlier，I ______________ （meet） her in the flesh. (5) ［词汇复现］If I were a millionaire in the future，I _________________ （contribute）a lot of money to Project Hope. 要点三 省略 if 的虚拟条件句 ◆用法归纳 虚拟条件句中如果有 were，had，should，那 么 if 可 省 略，但 要 把 were，had 或 should 提到句首，变为倒装句式。 ________ he agree to go there，we would send him there. 4 要是他答应去的话，我们就派他去了。 _________ she here，she would agree with us.如果她在这儿的话，她会同意 我们的。 ◆同义句转换 (1)［词汇复现］If the country were in economic chaos，what would you do? → ____________________ in economic chaos，what would you do? (3) ［词汇复现］If it should happen，I would give you good entertainment. → ________________ ，I would give you good entertainment. 要点四 错综时间条件句 ◆用法归纳 当条件状语从句表示的行为和主句表示的行为发生的时间不一致时，称为错 综时间条件句。 主句和从句的谓语动词要根据各自所发生的不同时间选择适当的形式。 ◆单句语法填空 (1) ［ 词 汇 复 现 ］ If people had protected the rainforest better ， it ____________________（not disappear） now. (2) ［词汇复现 ］You would be much better now if you _____________ (follow)my suggestion. 要点五 含蓄条件句 ◆用法归纳 有时不出现 if 虚拟条件句，而是以介词短语、并列句、副词、非谓语动词 的形式出现。 常见的介词（短语）有 without“没有 ……”，but for“ 要 不 是 ……”； 连词有 but“但是”，or“不然”；副词有 otherwise“否则的话”等。 单句语法填空 (1)［词汇复现］But for the meeting，I _________________ （finish） my 5 project. (2)［词汇复现］I was busy packing at that time. Otherwise，I _______________ （call） you. 三、【自我检测】 1.单句语法填空 (1).If you _______(study)hard,you’ll succeed sooner or later. (2).If he had listened to me,John ____________________(not fail). (3).If I ________(be)you,I would attend the meeting. (4).But for water,it _______________(be)impossible to live in the desert. (5).If it_____________(rain)tomorrow,the opening ceremony would be put off. 2.单句写作 (1).If Bill___________________(告诉我）yesterday,I should know what to do now. (2).If you don’t lose heart,______________________(你就会成功）. (3).If you had taken the medicine yesterday,you_____________________(现 在就好了）. (4).Without electricity(电）human life _________________________(将会 很不同）today. (5).I was ill that day.Otherwise, I __________________________the sports meeting(就参加运动会了）. 6 课后 总结 这节课我学到了什么？ 这节课重点总结： 1. 2. 3. 7 The key 一.【课前复习与检测】 要点一（1）will go,If(2)were 二、【课堂学习研讨】 要点二（1）knew（2）were(3)had studied(4)would have met(5)would contribute 8 要点三 省略 if 的虚拟条件句 Should ,Were(1)Were the country(2)Should it 要点四 错综时间条件句 would not disappear, had followed 要点五 含蓄条件句 (1) would finish(2)would have called 三、【自我检测】 1. 单句语法填空(1)study(2)would not have failed(3)were(4)would be(5)should rain 2.单句写作(1)had told(2)you will succeed(3)would be better now(4)would be better(5) would have taken part in