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Let’s do sth.
Why not do sth.
Why don’t you do sth.
What / How about doing sth.
It’s a good idea /way to do sth.
It’s adj for sb to do sth.
You’d /We’d better (not) do sth.
I think doing sth is …
It’s one’s duty to do sth.
四、Target Language (目标语言)
1.复习本单元的表示规则的句型
Don’t eat in the classroom!
We can’t/shouldn’t/mustn’t arrive late for class.
We must/should be on time.
We have to clean the classroom.
We have to follow the rules.
Keep the room clean.
No parking here.
2.召回，总结并归纳表示提建议的句型：
How about saying hello to them?
I think helping the old to cross the streets is a good idea.
It’s good for us to be friendly to other people.
It's our duty to follow the traffic rules.
We'd better save water and food.
Why not eat up all the food in your bowl?
Let's try our best to do the things we can do to make our city beautiful and wonderful.
Why don’t you throw the rubbish into the dustbin?
It’s a good idea to plant more trees.
五、Vocabulary （词汇）
重点单词和固定搭配的运用: