Unit 13 We're trying to save the earth! Section B (3a~Self Check) 课件(共23张PPT)

(共23张PPT)
Unit 13
We’re trying to save the earth!
Section B (3a~Self Check)
1.学习目标
3.重点探究
2.自主学习
学习导航
5.当堂检测
6.课堂总结
4.拓展提升
新课导入
The earth is badly polluted.
What are the problems
What causes the problems
What should we do to save the earth
Turn off the lights when we leave a room.
Take our own bags when shopping.
Ride a bike.
Recycle paper.
Don’t use paper napkins.
Put things we don’t use anymore to good use.
学习目标
1. 能记住并正确运用本课时的重点单词和短语
2. 能使用派生、合成等方法构成新的单词
3. 能书写有关提出保护环境的建议的书信
自主学习
Review
1.save the earth
2.noise pollution
air pollution
water pollution
3.cut down pollution
4.throw litter into the river
5.put waste into the river
拯救地球
噪音污染
空气污染
水污染
减少污染
扔垃圾到河中
扔废品到河中
自主学习
6.close down the factory
7.clean up the ground
8.the bottom of the river
9.play a part in doing sth
11.advantages of bike riding
disadvantages of bike riding
关闭工厂
清扫地面
河的底部
参与做…在…起作用
骑自行车的优点
骑自行车的缺点
自主学习
12.wooden chopsticks
plastic forks
13.takeaway food
14.throw rubbish in the bins
15.keep public places clean
16.lead to
木制筷子
塑料叉子
外卖食物
扔垃圾到垃圾箱
保持公共场所干净
导致
重点探究
3a Think about the environment in your town/city
and complete the chart below.
Which parts of the town/ city have a nice environment Why are they nice
Which parts need to be improved Why
Good environment Why Bad environment Why
park
the air is clean
streets
so many trees
restaurants
clean and tidy
river
a lot of rubbish
so many cars
air
too many
factories
streets
1 Write different forms of the words. Then add
more to each group.
v.— n.
pollute —
act
protect —
inspire —
build —
create —
pollution
action
protection
inspiration
building
creation
n.— adj.
fame —
wood —
science—
health —
south —
care —
famous
wooden
scientific
healthy
southern
careful
Self Check
adj.— n.
different —
important—
difference
importance
adj. — adv.
slow —
wide —
sudden —
real —
slowly
widely
suddenly
really
2 Match each statement with the grammar structure.
Statement Grammar
The river used to be so clean. Present progressive
We have seen many changes in the environment. Modal verbs
People should take public transportation more. Passive voice
The river is polluted by factories. used to
The air pollution is getting worse and worse. Present perfect
3 Write ways to cut down on these kinds of pollution.
Kinds of pollution Ways to cut down
water pollution
land pollution
noise pollution
air pollution
stop factories from
throwing waste into rivers.
Try not to use plastic bags when shopping
Cut down the number of cars.
Reduce the number of factories that burn coal.
拓展提升
3b Write a letter to the city mayor about the problems
and your suggestions.
Writing
In your letter, describe the environmental
problems in your town/city.
1. What are the problems
2. Where are they
3. What or who is causing these problems
Then, give suggestions or possible ways to
solve the problems.
I think that…
We should/ could…
I suggest…
写作指导
本次写作内容是一封书信，信中首先要介绍你所在城市存在有哪些环境问题，是谁造成的这些问题，然后提出解决这些环境问题的方法和措施，可以结合3a中列举的问题和前面学过的解决办法来完成这封信。
One possible version
Dear Sir/ Madam,
Environmental problems are becoming more and more serious all over the world.
With the development of the society, there are too many cars on the streets in our city. Cars have made the air unhealthy for people to breathe. Black smoke and poisonous gas are given off by factories. Factories also put waste into the river. And wherever we go, we can find rubbish.
Now more and more people have realized these problems. I think that governments should close down the factories and develop laws to stop people from driving cars every day. I suggest everyone in this town should help to clean up the river and the streets. We should call on everyone in the town to throw rubbish in the dustbins.
I hope the problem will be solved in the near future and our home will become better and better.
当堂检测
Ⅰ. 根据句意及汉语提示完成句子，每空一词。
1. Everyone in this town should _____ ____ ___ (参加)
cleaning the city up.
2. Do you want your address written ___ ___ ____ ____
(在......顶端) the letter
3. So together, our actions can _____ ___ _________
(发挥作用).
4. His eyes were open and everything he saw was
______ ______(颠倒).
5. Smoking ______ ____________ ____(对......有害)
your health. You must give it up.
take part in
at the top of
make a difference
upside down
is/does harmful/harm to
Ⅱ. 用所给动词的适当形式填空。
1. We are trying (work) hard at all the subjects.
2. There used to (be) a lot of manatees. But now
there are few.
3. What was the air pollution (cause) by
4. Have you ever (throw) away things you
don't like to use
5. I have also (set) up a website to sell clothes
online.
to work
be
caused
thrown
set
课堂总结
能书写保护环境的相关建议
能使用派生、合成等方法构成新的单词
Unit 13
Section B (3a~Self Check)