1.I think I’ll wear jeans ___ the party. If you do, the teachers won’t _____ ____ ____.( 让你进去 ) 2. I think I’ll ____ ____ ____ ( 呆在家里 ). If you do, you’ll ____ _____.( 伤心 ) 3. I think I’ll ___ the bus ___ the party. If ___ ____, ____ ____ ____.( 要是那样, 你会迟到 ) 4. ____ will you go _____?( 你和谁一起去啊 ) 5. They are ___ _____ ( 谈论 ) ___ ___ ____ ____ ___ ____. ( 什么时间开班会 ) 6. ___ ____ ____if we have the party today?( 会发生什么事 ) _____ _____ ____ ____ ____. 一半的同学不会来。 7. ___ is ___ ___ ___ ___ the party? 何时是开聚会的好时间？ to let you in stay at home be sorry take to you do you’ll be late Who with talking about when to have a class meetingwhen to have What will happen Half the class won’t come When a time to have

A: When is a time ___ ___ the party? B: Let’s have it today. A: If we have it today, half the class ___ ____ B: What about tomorrow? A: If we have it tomorrow, students will ___ ____to study for a test. B: Let’s have it on Saturday afternoon. We’ll watch a video ____the party. A: If we watch a video,students will be bored. Let’s play ____ ____. B: Good ideas! Can you ____ the party games? A: Certainly! Can you ___ ___ ___ for us? B: No problem!

注意这种结构： how, what, when, where 等特殊疑问词后若无主语且这 些特殊疑问词本身不做主语是，要考虑特殊疑问词的不定式 的结构，即 “how ， what ， when ， where 等特殊疑问词 +to+ 动词原形 ” 。练习： 1.The guide taught us how _____(make) robots. 2.We want to know when ____(leave). 3.Can you tell us what ____(do) next? 4.I don’t know what ____(do) about going to the party. 5.I’m not sure how ____(go) to the party. 6. I wonder where _____(go) on vacation. 7. we’ll never know what ______(happen) in the future.

Role play: Jeff: Ben.For the party, should we ask people to bring some food? Ben: No, Let’s order some food from a restaurant. If we ask people to bring some food, they’ll just bring potato chips and chocolate because they’ll be ___ lazy ____cook. Jeff: OK. For the games, should we give people some small gifts if they win? Ben: That’s a good idea! If we do that, more people will want to play the games. Jeff: Yes, the games will be more exciting. ask sb. to do sth 让某人做某事， 例如：让你妈妈来学校。 too…to… 太 … 而不能 … 例如： 有些决心太难而不能坚持 。 有关聚会

归纳总结： 本课所学带有 if 的句子不再是简单句，而是条件状语从句。任 何一个条件状语从句都由主句和从句组成。其中以 if 开头的句 子是 ____ 句，没有 if 的句子就是 ____ 句。 分清下列句子的主句和从句。 1.If you go to the party, you will have a good time. 2.What will happen if we have the party today? 3.If we do that, more people will want to play the games. 4.They’ll just bring chocolate if we ask people to bring food. 从以上例句中还可得出：①从句既可以在句 ____, 又可以在句 ____. 若从句在句首时，其后要加 _____ ，再加主句。若主句 在前则不用加逗号。 ② if 引导的状语从句中，要注意主从句的时态是不一致的，一 般而言，主句要用 _____________ 时态，而从句的时态必须 是 ___________ 时态，这就是 if 从句的 “__________” 原则。 从主 首 末 逗号 一般将来时 一般现在时主将从现

1. If you ____ (get) up at 7:30, you______(be) late for school. 2. I ____ (stay) at home if it _____(rain) tomorrow. 3. If he ____(be) late, the teacher ___(not let) him in. 4. We ____(get) good grades if we ____(work) hard. 5. We _____(have) an exam if it _____( not rain ) tomorrow. 6. If he ___________(not finish) his homework, the teacher ______(be) angry. 7. Please call me if he _____(come) here. 8. Parents can help us if we __(have) problems in future. 9. Unless he ________(work) hard, he________(not pass) the exam. 10. Others ____ (not help) you unless you _____(help) others. 11. When I _____(be) free tomorrow, I _______(help) you get will be will stay rains is will get work will have doesn’t rain doesn’t finish will be comes have works won’t pass won’t help help amwill help won’t let

小结： 1. 除一般将来时表示将来的意义外，祈使句和带有情态动 词的句子也可以表达将来的意义。 2. 除 If 的条件状语从句中要体现 “ 主将从现 ” 外，其反义词 unless 也适用这一原则。 when 引导的时间状语从句也适用这一原则。