Unit 2 Keeping Healthy Topic 3 Section D 课件(共34张PPT，内嵌音频)八年级英语上册 （仁爱版）

(共34张PPT)
Unit 2 Keeping Health
Topic3 Must we exercise to prevent the flu
Section D
Review
Discuss the advantages and disadbantages of the two kinds of food.
Review
give a talk
Speak out the meaning of the phrase as quickly as possible.
healthy eating habits
enough energy
fast/take-away food
stay/keep safe
on the other hand
learn/know about
first aid
say no to doing sth.
in order to
New words
choose [t u:z] v.
stretch [stret ] v.
instead [in sted] adv.
equipment [ kw pm nt] n.
instead of
伸展，舒展
设备，器材
选择；挑选
代替，反而
代替
Key phrases
Who has the best memory
停止做某事
1. stop doing sth.
2. stop to do sth.
3. The more exercise, the better
4. warm up
5. need to do sth.
6. sb. spends ... doing sth./on sth.
7. choose to do sth.
8. keep healthy/fit
9. be carful
停下来去做某事
锻炼得越多，就越好。
热身
需要做某事
某人花......做某事/在某事上
选择做某事
保持健康
当心
Ask and answer
-Should we need to warm up before running？
做热身运动
-Yes, we should.
-Is it necessary for us to buy
good exercise equipment？
运动器材
-No, it isn’t.
-Should we spend a lot of
time exercising
-No, we shouldn’t.
花费时间(/金钱)做某事
1. The more exercise, the better. ( )
2. We should stop exercising when we are hurt. ( )
3. Drinking while playing sports is bad for our health. ( )
4. Exercising in a gym is not a good idea. ( )
1a
Tick the following ideas you think correct before reading.
Then read the passage and check.
1. It’s important to warm up before exercising. ( )
2. It’s necessary to buy exercise equipment. ( )
3. We should choose a sport that we enjoy. ( )
4. We shouldn’t drink a lot of water when we exercise. ( )
5. We had better not exercise when we are hurt. ( )
Listen to 1a and mark True or False.
T
F
T
F
T
Read 1a and fill in the blanks.
How to Exercise Well
We need to __________.
We should _________________________.
We had better not ______________.
We should __________________.
We mustn’t ________ when we are hurt.
warm up
find good places to exercise
work too hard
drink enough water
exercise
1a
How to Exercise Well
*Warm up.
It is important to warm up before you exercise. You need to stretch your legs, arms, back and neck before you do any difficult activities like running.
*Find good places to exercise.
You do not need to spend a lot of money exercising. You can run or play sports in a park or in your school gym. You don’t need to buy exercise equipment for your home. Just get your body moving!
1b Underline the suggestions
1a
How to Exercise Well
*Don’t work too hard.
Choose a sport that you enjoy and then your exercise will be fun instead of work. Also, you only need to exercise a few times each week. If you exercise for 30 minutes each time, you will stay healthy.
*Drink enough water.
It is important to drink water when you exercise. Your body needs the water for energy and for keeping cool.
*Be careful!
If you hurt yourself while you are exercising, rest until you feel better. Exercising when you are hurt is bad for your health.
1b Underline the suggestions
Language points
考点：
the+比较级+（主语+谓语）， the+比较级+（主语+谓语） “越......越......”。
eg. The faster, the better. 越快越好。
The more careful drivers are, the fewer traffic accidents there will be.
及时练习：你练得越多，做起来就越容易。
________ you practice，________ it becomes.
1. The more exercise, the better. 锻炼得越多越好。
The more the easier
Language points
考点：
stop doing sth. 停止做某事；
stop to do sth. 停下来去做某事（表示停下正在做的事情去做另一件事）；
stop sb. (from) doing sth. 阻止某人做某事。
eg.When the teacher came into the classroom, we stopped talking.
She was too tired, so she had to stop to have a rest.
The heavy rain stopped us from playing basketball.
及时练习：
1. I want to ask my father to stop _______ (smoke) because of his bad cough.
2. Whenever we ask Miss Chen for help, she will stop ________ (help) us.
3. 我们应该阻止孩子们玩火。（完成译句）
We should _______ the children _______playing with fire.
2. We should stop exercising when we are hurt.
当我们受伤时应该停止锻炼。
smoking
to help
stop from
Language points
考点：
when/while/before/after+时间状语从句 可以简化为：
when/while/before/after+doing sth.
eg. I often give my mom a hug before I go out.
= I often give my mom a hug before ___________.
3. Drinking while playing sports is bad for our health.
做运动时喝饮料对我们健康不利。
going out
Language points
考点：
（1）that you enjoy是一个定语从句，修饰名词sport.
（2）choose to do sth. 选择做某事，
choose...from... 从......中选出......
what/which to choose 选择什么/哪一个。
eg. He often chooses not to answer my questions.
（3）instead adv.，意为“代替，而不是”，
常用作状语（位于句首或句末）。
eg. I didn’t go to the park. Instead, I went to the zoo.
拓展：instead 和 instead of 的辨析：
4. Choose a sport that you enjoy and then your exercise will be fun instead of work.
当选择一项你喜欢的运动，然后你的锻炼会有趣而不是工作。
Language points
拓展：instead 和 instead of 的辨析：
1）instead是副词，后面不接其他的词，一般情况下可不译出，通常放在句首或句末，在句首时常用逗号隔开，表示前面的事没做，而做了后面的事。
eg.He didn’t go to school. Instead, he went to the cinema
2）instead of是介词短语，意为“代替，而不是”，后面可以跟与前面并列成分相应的名词、代词、动词-ing形式等作为介词宾语。
eg.He went to the cinema instead of going to school.
记忆：instead+句子
instead of+名词、代词、动词-ing形式等（非句子）
练习：Philip didn't go hiking with his sister, _____, he stayed and played games alone at home.
A. instead B. rather than C.instead of D .although
A
Language points
考点：
（1）sb. spends some money doing sth./on sth.
意为“某人花钱做某事/在某事上”，常与
sb. pays some money to do sth./for sth.
sth. costs sb. some money 进行同义句转换。
eg. She spent much money buying a new computer.
= She paid much money for a new computer.
= A new computer cost her much money.
sb. spends some time doing sth./on sth.
意为“某人花时间做某事/在某事上”，常与
It takes sb. some time to do sth. 进行同义句转换。
eg. I spent two hours on this math problem.
= It took me two hours to work out this math problem.
5. You do not need to spend a lot of money exercising.
你不必花很多钱做锻炼。
Language points
考点：
（2）need作实义动词，可用need+n./v-ing/to do。
need sth. 需要某物，
need to do sth. 需要做某事
sth. needs doing 某事需要被做。
eg. I need your help.
Everyone needs to exercise at least 30 minutes every day.
The room needs cleaning.
注意：need作为情态动词主要用于否定句和疑问句中。
eg. You needn’t worry about it.
—Need he do this work first —No, he needn’t.
5. You do not need to spend a lot of money exercising.
你不必花很多钱做锻炼。
及时练习：
1. —Do you often get online
—Yes, I _____ lots of time on it. It’s a good way to kill time.
A. cost B. spend C. take D. pay
2. As you worked late last night, you _____ so early tomorrow.
A. needn’t to come B. don’t need come C. needn’t come D. need
3. This afternoon Mr. Li _____ for my dinner.
A. spent B. paid C. cost D. took
4. —What beautiful dress you’re wearing! They must be expensive.
—No, it only _____ 30 yuan.
A. spent B. took C. paid D. cost
5. It will _____ me too much time to read this book.
A. take B. cost C. spend D. pay
B
C
B
D
A
Grammar
Modal Verbs (Ⅲ): must/have to
______ 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
needn’t
must
have to
Read through Sections A-C and fill in the blanks with the correct words.
Language points
must和have to都是“必须”的意思，但must侧重于个人意志和主观上的必须，无时态变化；而have to侧重于客观上的必要，可用于各种时态。
eg. You must take good care of your little brother.
Because of bad weather, we have to/had to/will have to stay at home.
Grammar
Reflexive Pronouns
First person Second person Third person Singular ________ yourself himself _______ itself
Plural ourselves _________ ____________ Person
Number
myself
yourselves
herself
themselves
数 人称 单数 复数
第一人称 myself 我自己 ourselves 我们自己
第二人称 yourself 你自己 yourselves 你们自己
第三人称 himself 他自己 themselves
他们自己
herself 她自己 itself 它自己 反身代词是表示或强调自身的代词，有人称和数之分。
Functions
_____ 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
like
leave
not to forget
say
up
Project
Write Your Own Newspaper
Work in groups and discuss about keeping healthy.
Make a handwritten English newspaper about keeping healthy. The following information will help you.
Topic Picture What to write about Saying Poem Story
Keeping healthy 1.healthy eating habits 2.healthy living habits 3.happiness … 1.An apple a day keeps the doctor away. 2.Early to bed, early to rise.
3. Each group makes their own newspaper about keeping healthy. Then share it with the whole class.
Project
1. 用适当的反身代词填空。
① I cooked ______ a meal and then I watched TV.
② If you don’t help him, he’ll have to do it all by _________.
③ I put the food on the table and asked them to help __________.
④ Jack and Peter, did you clean the room __________
⑤ Be careful with that knife or you’ll cut ________.
⑥ John hurt ______ when he was playing football.
myself
himself
themselves
yourselves
yourself
himself
Exercises
2.句型转换。
(1) I have to go to school on foot today. (改为一般疑问句)
_____ you _____ to go to school on foot today
(2) Jim has to stay at home to look after his mother. (变为否定句)
Jim _______ ______ to stay at home to look after his mother.
(3) Do you have to cook for yourself (否定回答)
____, __ ______.
(4) Must I finish my homework now (否定回答)
____, ____ ________.
或 ____, _____ _____ ______ ____.
(5) We’d better go there by bike. (改为否定句)
We ______ _______ ______ go there by bike.
Do
have
No I don’t
No you needn’t
No you don’t have to
had better not
doesn’t have
由于学习生活紧张，现在许多学生饮食随便、不爱运动、不讲卫生，对身体有很大危害，假如你是学校的一名校医，请写一篇简短的发言稿，给同学们提出一些建议和忠告。不少于60词。
Hello, everyone! Now I will give you some advice about how to keep healthy.
First, never eat unhealthy food. Fast food, junk food and hot food are all bad for our health. We should eat green food.
Second, do more exercise. Exercising can keep us active all day. It’s good for our study.
Third, keep your room clean and keep the air in your room fresh. Stay away from the crowded places.
If you do these, you’ll be healthy.
That’s all! Thank you for listening.
3.书面表达。
1. Learn modals for giving advice.
--Must we exercise to prevent the flu
--Yes,we must./No, we needn't./No,we don't have to.
2. Learn reflexive pronouns.
myself; ourselves; yourself;yourselves; himself;herself;itself; themselves.
3. Talk about how to exercise well.
summary
Homework
1. Finish Review of Units 1-2 (P51-54).
2. Finish the exercises of SD in the exercise book.
3. Preview U2 T1 SA.
4. Have a dictation.