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(共24张PPT)
Units 1-3
Units 1-3
Mid-term revision
Lead-in
餐桌上有好多可口的事物，但是哪些我们不能多吃，哪些应该多吃呢？请你给出合理的建议吧！。
Don’t eat too much ... Eat more …
Lead-in
Tang Chong is my best friend. I like him _____
We both(两个都) like sports. I like playing basketball _____ I often go to the park to play it. _____ he doesn’t like basketball, he likes swimming. He often swims in the gym(体育馆).
我有一位好朋友。你能帮我补全我对他的介绍吗？
because
and
But
话题梳理
lyric
What’s on your plate
Talk about healthy eating.
Don’t take too much.
You should have some vegetables.
We should eat carrots.
They’re good for our eyes.
Talk about how to choose the right food.
话题梳理
lyric
A green life
Share what you can do to be green.
Bring our own water bottles.
Use old paper for art homework.
We can pick up rubbish and make posters.
We should bring our own water bottles.
Talk about how to take care of the earth.
话题梳理
lyric
Happy together
Talk about friendship.
Share what you do with your best friend(s).
We want to be friends but we can’t.
We are friends because we are happy together.
We often read books, watch films and play games together.
We share things.
Friends help each other. Friends take care of ...
Friends play together and friends share with each other.
Talk about how to be a good friend.
重点突破
“Don’t ...”句型属于否定祈使句，用来禁止、劝阻别人不要做某事，意思是”_______”，Don’t 后面要接动词 ____。例如：
Don’t ____ in class. 不要在课堂上睡觉。
Don’t ____ in the library. 不要在图书馆说话。
Don’t ____ late. 不要迟到。
1．否定祈使句
talk
不要……
sleep
原形
be
重点突破
should 是情态动词，意思是“____”，可以用来提建议。should 后要接动词 _____。例如：
You should ____ more fish. 你多吃点鱼。
You should go to school early. 你应该早点去上学。
We should ____ each other. 我们应该互相帮助。
My sister should do more sports. 我妹妹应该多做运动。
2．用 should 表示建议
应该
原形
eat
help
重点突破
如果要表示“不应该”，应该在should 后面直接加not，可以缩写为 ________。例如：
You should not swim in the river. 你不应该在河里游泳。
We should not be late. 我们不应该迟到。
You shouldn’t sleep do late. 你不应该那么晚睡。
2．用 should 表示建议
shouldn’t
重点突破
祈使句用来表达：命令、请求、劝告、建议、禁止等。
肯定祈使句（让对方做某事）：
① 动词 ____ + 其他
Give that red apple to me, please.
请把那个红苹果给我。
用 ______可以使语气更委婉，可放在句首或句末。
3．祈使句的用法
原形
please
重点突破
② Let sb. + 动词____ + 其他.
Let’s recycle the paper!
让我们回收利用纸张！
否定祈使句（让对方不要做某事）：
Don’t + 动词____ + 其他.
Don’t use plastic bags. 不要使用塑料袋。
3．祈使句的用法
原形
原形
重点突破
because的意思是“_____” ，用来说明原因。它可以放在句子的开头或者中间。例如：
I am happy because I have a new pen.
我很开心，因为我有一支新钢笔。
He stays at home because it rains.
他待在家里，因为下雨了。
4．连词because、but、and的用法
因为
重点突破
but的意思是“_____” ，用来表示转折。它一般不放在句子的开头。例如：
The bag is small but it is heavy.
这个包很小，但是很重。
I want to run but I am tired.
我想跑步，但是我很累。
4．连词because、but、and的用法
但是
重点突破
and的意思是“________” ，用来表示意思的递进或者表示顺序。例如：
I like apples and bananas.
我喜欢苹果和香蕉。
She gets up early and washes her face.
她早起，然后洗脸。
4．连词because、but、and的用法
和；而且
强化训练
选择 and / but / because 填空。
1. I like cats ____ I like dogs.
2. The book is old ____ it is interesting（有趣的）.
3. She is sad _______ she loses her pencil.
4. Tom runs fast ____ jumps high.
5. It is hot ____ we want to drink water.
6. The dress is pretty ____ it is too expensive（贵的）.
and
because
but
and
and
but
强化训练
______ to the teacher, please.
_____ the window. It’s hot.
_________ on the wet floor. It’s dangerous!
____ quiet in the library.
____ down, please.
Listen
Don’t run
Open
Be
open run listen be sit
Sit
选择填空，用方框里词语的肯定或者否定形式完成句子。
强化训练
用 should 或者 shouldn't 填空
1. We ______ keep our classroom clean.
2. You _________ run in the hallway. It’s dangerous.
3. We ______ help our parents at home.
4. You ________ eat too much candy.
5. Students ______ listen carefully in class.
should
shouldn't
should
shouldn't
should
为了保护绿色地球，你有怎样的建议？请你和小组成员一起列举3-5条吧！
We should …
We shouldn’t …
Why not …
Task 1
请你根据自己的学习和了解，给小朋友们一些有关于饮食的建议。
Eat some …
You shouldn’t eat …
You should eat …
Don’t eat too much …
Task 2
谁是你最好的朋友？你们之间有什么相同与不同？请你使用以下句子试着说一说！
I/He/She am/is/like … and …
I am/He is …, but …
I like/He likes … because …
Task 3
知识梳理
Try to make more friends.
New words
Expressions
plate, group, fruit, candy, chocolate, cola, chips, soup, potato, choose, meat, letter, stomach, enough, bad, bread, a few, biscuit, heavy, sleepy, always, change, healthy, problem, slow, whoa, oats, nut, bar, teaspoon, sugar, bottle, oil, snack
Try to make more friends.
Don’t take too much.
不要拿太多。
01
02
We should drink milk. It’s good for our bones.
我们应该喝牛奶。它对我们的骨骼有益。
知识梳理
Try to make more friends.
New words
Expressions
waste, plastic, throw, useful, Yours, recycle,
each, over, metal, into, turn into, newspaper,
flat, beginning, off, take off, seat, land, shop
Try to make more friends.
Don’t throw it away.
不要把它扔掉。
01
02
Give that old shirt to me, please.
请把那件旧衬衣给我。
03
Let’s start now for a green world!
为了绿色的世界，让我们从现在开始行动！
知识梳理
Try to make more friends.
New words
friendship, unhappy, both, funny, musical,
er, rabbit, key, parent, tip, similar, plan, openly
Try to make more friends.
We are friends because we are happy together.
我们是朋友，因为我们在一起很开心。
01
02
We often read books, watch films and play games together. 我们经常一起看书、看电影、玩游戏。
03
Friends play together and friends share with each other.
朋友一起玩耍，并且朋友之间互相分享。
Expressions
Bye-bye!
Bye-bye!

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