3. You should...
4. Don't you want to ...?
5. Don't you think ....?
四、重点讲解
1.If you go to the party, you will have a great time.
如果你这次去聚会,你就会玩得很高兴。
if条件句:条件句用于陈述语气,表示假设的情况可能发生,其中 if 是"如果"的意思。
构 成 条件从句 主 句
时 态 If+一般现在时 主语+shall/will+动词原形
例 句 If he comes, he will take us to the zoo.
用法:
(1)条件状语从句通常由连词if引导,意为"如果、假如",主句不能用be going to表示将来,
而应该用shall,will。 如:If you leave now, you will never regret it.
(2)if "如果",引导条件状语从句,主句用一般将来时,从句则用一般现在时,如:
If it rains tomorrow, we won't go there.
注意:
宾语从句中的if与条件状语从句if的区别。宾语从句中的if"是否"相当于 whether,引导宾语从句,时态需根据语境确定。如:
I don't know if it will rain tomorrow. 我不知道明天是否会下雨。
【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.这个班一半的人不能来。
half a; half the; a half 后面都可接名词,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.
我想提醒你注意学校聚会的规则。
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,请提醒我。
Please remind me that I must call him up before noon. 请提醒我中午之前给他打电话。
【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.
不要穿牛仔裤。如果谁穿了,那就不要进去。
if 引导的条件状语从句,主句用一般将来时,从句用一般现在时。
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 放进,招致(灾害等) let out 放掉,泄露
例如:Please open the window and let in some fresh air.请把窗户打开,放点新鲜空气进来。
Don't tell this to Ben. He always lets out our secrets.不要把这个告诉本,他总是泄露我们的秘密。