If you go to the party you’ll have a great time教案
3. are you going to the party? yes, i am. i’m going to wear my new jeans.
4. if you do, you will be late.
5. what will happen if they have the party tomorrow?
6. if i don’t clean my room, my mother won’t let me meet my friends.
7. i am going to the school party.
8. you should wear your cool pants.
精講巧練：
1.if you go to the party, you will have a great time.
如果你這次去聚會，你就會玩得很高興。
if條件句：條件句用于陳述語氣，表示假設的情況可能發生，其中 if 是“如果”的意思。
構 成 條件從句 主 句
時 態 if＋一般現在時 主語＋shall/will+動詞原形
例 句 if he comes, he will take us to the zoo.
用法：
(1)條件狀語從句通常由連詞if引導，意為“如果、假如”，主句不能用be going to表示將來，
而應該用shall，will。 如：if you leave now, you will never regret it.
(2)if “如果”，引導條件狀語從句，主句用一般將來時，從句則用一般現在時，如：
if it rains tomorrow, we won’t go there.
注意：
賓語從句中的if與條件狀語從句if的區別。賓語從句中的if“是否”相當于 whether，引導賓語從句，時態需根據語境確定。如：
i don't know if it will rain tomorrow. 我不知道明天是否會下雨。
【考例】 if_________, i will go.
a. he doesn’t come b. he won’t come c. he will come d. he is coming
2.half the class won’t come.這個班一半的人不能來。
half a； half the； a half 后面都可接名詞，表示“一半”。
【考例】i have read _____________ the book..
a. half of b. half c. a half d. halves
3.i want to remind you of the rules for school parties.
我想提醒你注意學校聚會的規則。
remind someone (of something), remind someone that ….
“提醒某人（某事）”，“使某人想起（某事）”
例如：
if i forget, please remind me. 如果我忘了，請提醒我。
please remind me that i must call him up before noon. 請提醒我中午之前給他打電話。
【考例】the film reminded him________ what he had seen in paris.
a. on b. of c. in d. off
4.don’t wear jeans. if you wear jeans, we won’t let you in.
不要穿牛仔褲。如果誰穿了，那就不要進去。
if 引導的條件狀語從句，主句用一般將來時，從句用一般現在時。
if you do, the teachers will take it away.
if you do, the teachers will ask them to leave.
if you do, the teachers will call your parents.
if you do, you’ll have to leave.
let in 放進，招致（災害等） let out 放掉，泄露
例如：please open the window and let in some fresh air.請把窗戶打開，放點新鮮空氣進來。