资源简介

(共20张PPT)
Section D
Unit 2 Keeping Healthy
Topic 3
Must we exercise to prevent the flu
Learning Aims
(2 mins)
1.复习掌握情态动词must和have to的用法与区别。
2.掌握stretch, equipment, instead, instead of, choose, energy等重点词汇和短语。
3.了解锻炼身体时的注意事项，并会用英文表达。
4. 反身代词的含义和用法。
Review
(5 mins)
we exercise to prevent the flu
Yes, we must. /No, we don't . /No, we .
And you do your homework first.
I do some cleaning.
must/have to
Must
have to
needn't
must
have to
First person Second person Third person
Singular ________ yourself himself ___ itself
Plural ourselves _________ ____________
Person
Number
myself
yourselves
herself
themselves
I ask you some questions Sure,go .
I'm afraid he is right now.
OK,I'll ring him later.
I'd to speak to Dr.Li Yuping.
Can I a message
Please tell my father the talk tomorrow afternoon.
You should no to smoking and drinking.
May
ahead
busy
up
like
leave
not to forget
say
Functions
Self-learning
(8 mins)
Tick the following ideas you think are correct before reading. Then read the passage and check.
The more exercise, the better. ( )
We should stop exercising when we are hurt. ( )
Drinking while playing sports is bad for our health. ( )
Exercising in a gym is not a good idea. ( )
1a
1a
Read 1a and mark True or False.
It’s important to warm up before exercising. ( )
It’s necessary to buy exercise equipment. ( )
We should choose a sport that we enjoy. ( )
We shouldn’t drink a lot of water when we
exercise. ( )
We had better not exercise when we are hurt. ( )
T
F
T
F
T
Key Points
（10 mins）
1. must 用法：
（1）用于命令、事关生命安全、规定或要求的情境中；
（2）表主观性的肯定推测，语气强烈；
Eg: 我知道我必须努力学习
I know I must study hard.
2.have to 用法：
意思为“不得不”，强调客观需要。
Eg: 我妹妹生病了，所以我不得不照顾她。
My sister was ill, so I have to take care of her.
3.The more exercise, the better. 锻炼越多，身体越好。
the+比较级 , the+比较级 越...，就越...
eg:越多越好。
The more, the better.
The more you practice, the easier it becomes.
你练的越多，就变得越容易。
4.We should stop exercising when we are hurt.
stop doing sth. 停止做(正在做)某事
stop to do sth. 停下来去做某事
Eg: Stop __________(talk).Please listen to the teacher carefully in class.
He stopped____________(talk) with my father.
talking
to talk
5.You need to stretch your legs, arms...
① need to do sth. 需要做某事 need 为实义动词
I need to water the flowers.
② need 做情态动词 ，“需要，必要” 主要用于否定，疑问句中。 否定： needn’t
You needn’t come if you are busy.
---Must he go now
--- No, he needn’t.
Summary
(2 mins)
1. 阻止某人做某事
2. 远离人多的地方
3. 上网
4. 经常做运动
5. 保持空气清新
6.勤洗手和勤换衣服
7. 为了预防流感我们必须服药吗？
prevent... from doing sth
keep away from crowded places
on the Internet
exercise often
keep the air fresh
wash hands and change clothes often
Must we take some medicine to prevent the flu
1. 电话用语
May/Could/Can I speak to...
2. 我恐怕他现在正忙着。
I am afraid he is busy right now.
3. 给某人打电话：
4. 留口信:
5. 给某人捎个口信:
ring sb. up = call sb. up
leave a message
give sb. a message
take a message for sb.
1.做报告
2.需要做某事
3.保持安全状态
4.在另一方面
5.做运动能帮你保持健康。
6.对你们来说，学习急救是有必要的。
7.快乐就能健康。
8.你们必须远离吸烟和饮酒。
9.你们应该对吸烟饮酒说不。
1.give a talk
2.need to do sth.
3.keep / stay safe
4.on the other hand
5.Playing sports can help you keep fit.
6.It is necessary for you to learn about first aid.
7.Be happy to be healthy.
8.You should stay away from smoking and drinking.
9.You should say no to smoking and drinking.
Test
（10 mins）
Thank you !

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