人教版九年级英语全册Unit13 We're trying to save the earth!SectionB3a-selfcheck课件(共19张PPT)

(共19张PPT)
Unit 13 We’re trying to save the earth!
(Period 6)
Section B (3a-Self Check)
Give Earth a Chance
Beat Plastic Pollution
Time for Nature
Only One Earth
让地球充满生机
塑战速决
关爱自然，刻不容缓
只有一个地球
Good environment Why Bad environment Why
3a
Think about the environment in your town/city and complete the chart below.
the air is clean
so many trees
clean and tidy
a lot of rubbish
so many cars
too many factories
Which parts of the town/city have a nice environment
Why are they nice
Which parts need to be improved Why
park
streets
restaurants
river
streets
air
审题
3b
Write a letter to the city mayor about the problems and your suggestions.
In your letter, describe the environmental problems in your town/city.
◆What are the problems
◆Where are they
◆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 …
审题
1．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哪些环境问题，是什么原因或者谁造成的这些问题，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保护环境的措施来完成这封信。
2．写作环保类的文章，要特别注意真情实感及语言的号召力。所以审题必须仔细，构思必须严谨。注意句式的变化，避免一种句式用到底的情况。采用祈使句和含有情态动词的句子，让文章更具亲和力。
①现在有越来越多的污染，环境问题变得越来越严重。
There is more and more ________ and the environmental problem is becoming ______ _____ ______ ________.
②这条河很脏，甚至河底都堆了大量垃圾。
The river was very ______. There is even ________ rubbish ______________ the river.
③我们的行动能带来变化，创造更加美好的未来。
Our _______can ________________and _______ a better future.
素材积累
1．词汇与句型
dirty
a lot of
at the bottom of
actions
make a difference
lead to
pollution
more and more serious
④使我们的环境更加美好是我们的责任。
_____ _____ ______ to make the environment more beautiful.
⑤首先，我们不应该到处扔垃圾。
_______, we are not _________ ____ drop litter everywhere.
⑥第二，为了减少空气污染，我们应该乘公共汽车或坐地铁来代替开车。
________, to _________air pollution, we should take the bus or subway ________________.
素材积累
1．词汇与句型
It’s our duty
cut down
instead of driving
Second
First supposed to
⑦骑自行车还有其他的优点。
There are ________________ of bike _______.
⑧当你离开房间的时候，你应该关灯以节约用电。
You should _____________ by ___________the lights when you leave a room.
⑨你经常扔掉你不再需要的东西吗？
Do you often _____________things you ___________anymore
素材积累
1．词汇与句型
other advantages
riding
save electricity
turning off
throw away
don’t need
①All of us want to live in a better place, so it’s our duty to beautify the environment.
（so引出结果）
②Not only can it protect the environment, but it is also good for our health.
（not only... but also... 连接两个并列句）
③If everyone can make their effort, our world will be much better.
（if 引导条件状语从句）
2．连接词与过渡语
素材积累
谋篇布局
分 段 构 思 表 达
1 当今的环境问题 Environmental problems are becoming more and more serious ...
2 保护环境的建议 It’s our duty to ... / We should ... / We are supposed to ... / ... is very important. / First, ... Second, ...
3 向人们提出倡议 If everyone can make their effort, our world will be much better. I hope ...
写作
Dear Sir/Madam,
I have lived in this town ever since I was born and I love it very much. There are beautiful areas in our town, but ________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
Yours faithfully,
________
参考范文
Dear Sir/ Madam,
I have lived in this town ever since I was born and I love it very much. There are beautiful areas in our town, but environmental problems are becoming more and more serious in our town. The people living here are throwing away too much rubbish. There is rubbish coming out of the bins, and flies and mice running all over the rubbish. The river was also very dirty. There is even a lot of rubbish at the bottom of the river. It is unpleasant to look at, smelly, and it makes the environment very unhealthy. With the development of the society, there are so 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. Wherever we go, we can find rubbish.
参考范文
All of us want to live in a better place, so it’s our duty to beautify the environment. First, we should call on everyone in the town to produce less rubbish and throw rubbish into the dustbins. Second, I think that governments should close down some factories and carry out laws to stop people from driving cars every day to cut down air pollution. We should take the bus or subway or ride bikes instead of driving. Not only can bike riding protect the environment, but it is also good for our health. Finally, I suggest everyone in this town should help to clean up the river and the streets.
If everyone can make their effort, our world will be much better. I hope the problem will be solved in the near future and our home will become better and better.
Yours faithfully,
Wang Xi
Self Check
Write different forms of the words. Then add more to each group.
1
v. — n. n. — adj. adj. — n. adj. — adv.
pollute— fame— different— slow—
act— wood— important— wide—
protect— science— sudden—
inspire— health— real—
build— south—
create— care—
pollution
action
protection
inspiration
building
creation
famous
wooden
scientific
healthy
southern
careful
difference
importance
slowly
widely
suddenly
really
Self Check
Match each statement with the grammar structure.
2
Statement
The river used to be so clean.
We have seen many changes in the environment.
People should take public transportation more.
The river is polluted by factories.
The air pollution is getting worse and worse.
Grammar
Present progressive
Modal verbs
Passive voice
used to
Present perfect
Self Check
Write ways to cut down on these kinds of pollution.
3
Kinds of pollution Ways to cut down
water pollution
land pollution
noise pollution
air pollution
ask factories not to throw waste into the river; remind people not to litter
ensure that factories throw away industrial waste in a responsible way; try not to use plastic bags when shopping
build airport away from places where people live
encourage people to use public transportation instead od driving; reduce the number of factories that burn coal
保护环境
素材积累
词汇与句型：throw away、at the bottom of、put waste into ...、cut down、make a difference、more and more serious、be supposed to、instead of、It is unpleasant to ...、It’s our duty to ...
连接词与过渡语：so引出结果；not only... but also... 连接两个并列句；if 引导条件状语从句
谋篇布局
污染问题及污染原因（Pollution and Causes）
解决方案（Solutions）
呼吁（Appeal）
你们学校的学生会打算以“保护环境”为主题开展一次社会实践活动。假如你是学生会主席，请你根据下面的提示用英语写一封倡议书。
提示：1．尽量不乘坐小汽车；出门乘公共交通；
2．回收利用课本；
3．不使用塑料袋、餐巾纸等；
4．节约水电。
要求：1．根据提示，可适当增加细节；
2．80词左右。