3. New words 1. 按 _______ 2. 按钮 , 纽扣 ________ 3. 介绍 _________ 4. 录像 _________ 5. 复印 __________ 6. 内存 ___________ 7. 打开 _________ 8. 录音机 _________ 9. 第二 __________ 10. 赶快 __________ 11. 女士 ________ 12. 出现 _________ 13.save one’s life______________ 14.text_____________ 15.medicine______________16.suggest____________ press button instruction video copy memory turn on recorder second come on lady appear 挽救某人的生命 文本，课文 药物 建议
4.
5.
6. 总结： 1. if 的含义： _____________ 2. if 引导的从句： _________________ 归纳 ： （一）定义： ______________________________________________ Eg. 如果你病了，你必须去看医生。 ______________________________________________ 如果 条件状语从句 条件状语从句表示主句动作发生的条件。 If you are ill, you must go to see the doctor.
7. 1. If you want to go ， please call me. = Please call me if you want to go . 2. If you get up early ， you can catch the school bus. = You can catch the school bus if you get up early. 3. If we study hard ， we will pass the exam. = We will pass the exam if we study hard. 归纳 ： ( 二 ) 位置： If 引导的条件状语从句既可在主句之后，也可在主句之前（但须用逗号与主句隔开）
8.
9. 单项达标 ： 1.If Bruce _____(be) free, let’s go to the park. 2.Tell him the news if you _______(meet) him tomorrow. 3.If you______ (stand) higher, you can see much farther. 4.If you ______(be) hurry, you can arrive in time. 5.If he ______(do) well in the exam, his teacher will be happy. 6.If the phone________(ring), I won’t answer it. is meet stand are does rings
10. 教师点拨 I f 引导的宾语从句与 If 引导的条件状语从句的异同点： 同： 异： 是否 如果 ⑴ 主句为一般现在时和一般将来时，从句？ ⑵ 主句为一般过去时，从句？ 都为 if 引导 时态 If 的含义 If 引导的条件状语从句 If 引导的宾语从句
11.
12. 课堂达标： 一 . 用所给动词的适当形式填空 1.If it _____(keep) raining, we’d better not go out. 2.If any problem ______(appear), ask your teacher for advice. 3.My father wants to buy a car if he _____(have) enough money. 4.Lucy ________(not go) to the party tomorrow if we _________(not invite) her. 5.I will visit the Great Wall if it ___________ (not rain) tomorrow. keeps appears has won’t go don’t invite doesn’t rain
13. 二 . 选择填空 1.We are going to visit the museum if it ______ sunny tomorrow. A. is B. is going to be C. was D. will be 2.If you _____ harder, you ____pass the exam next week. A. work; will be able to B. will work; can C. work; could D. will work; will be able to 3.If you _____, you will be the most beautiful girl at the party. A. have come B. came C. come D. will come √ √ √
