(共38张PPT)
Unit 13 We're trying to save the earth.
人教新目标版 九年级上
Section B3a-Selfcheck
写作优质公开课课件
Learning objectives
1. 复习并巩固本单元所学词汇。能够掌握后缀构词法。
2. 通过运用正在进行时、现在完成时和被动语态等描述污染、环境保护和循环再利用，来培养学生爱护环境和保护动物的意识。
3. 能结合本单元的环境问题和环保措施，完成写作任务。能够识别句子结构，熟练掌握现在进行时、现在完成时、被动语态、情态动词和used to的用法。
4. 了解环境问题的现状，起因以及解决方法，激发学生强烈的社会责任感和对未来发展的思考。
What kinds of environmental problems do you know
Warming-up
different kinds of pollution
waste pollution
water pollution
noise pollution
light pollution
land pollution
air pollution
waste of energy
Forget to turn off the tap,the shower or the light and waste paper.
break the balance of ecosystem
cut down trees
kill animals
What can we do
to save the earth
ways to let people know
hand out notices
make videos
post articles on the Internet
make speeches
ways to cut down pollution
take the bus, ride a bike or walk instead of driving a car
ways to cut down pollution
stop factories from putting waste into the river and burning coals
ways to cut down pollution
use reusable bags instead of plastic bags
don’t take wooden chopsticks or plastic forks
sort garbage
ways to save energy
turn off the tap,the shower or the light and waste paper when not using
ways to save energy
Don’t use paper napkins .
Recycle things that we don’t use anymore.
ways to keep the balance of ecosystem
plant more trees
save the animals
stop ocean plastic pollution
To protect the environment
Topic
Think about the environment in your town/city and complete the chart below.
3a
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
Suggested answers:
Good environment Why Bad environment Why
Central Park
clean
greenery
fresh air
nice to look at
quiet and peaceful
rubbish disposal areas at the bottom of apartment blocks
rubbish spilling out of bins
bad smells
unsightly
unhealthy
full of pests like rats, insects, cockroaches
Write a letter to the city mayor about the problems and your suggestions.
In your letter, describe the environmental problems in your town/city.
3b
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 ...
写作指导
It might be better to focus on one problem and write about it in detail instead of writing about many problems and not providing enough details.
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。
1. 体裁：应用文（书信）
2. 话题：保护环境
3. 时态：一般现在时
4. 人称：以第一人称为主
Writing tips:
While-writing
Letter
Problems
Causes
Solution
Beginning
Body
Ending
审体裁 ______________
审人称 ______________
审时态 ______________
应用文
第一人称
一般现在时
While-writing
The structure of the letter
What caused the environmental problems
Problems
pollution
waste of
energy
break the balance
of ecosystem
waste water
waste gas
plastic bags
…
forget to turn off the light
or shower
…
cut down too
many trees
kill the animals
…
the environment around us is becoming
worse and worse…,we can't see…,the air is so…
While-writing
How to save the earth
should/
can …
had
better ...
It’s necessary /
important to …
Save the energy
Cut down the pollution
other
ways
ride bikes or walk instead of…
…
turn off the light /shower
…
keep the balance of ecosystem,
plant more trees, …
the little things in
daily lives
government
and public
We should...
We’re supposed to ...
We can...
It’s important/necessary to...
We’d better...
We’re trying to...
Dear Sir/Madam,
I have lived in this town ever since I was born and I love this town very much.
I think that there are beautiful areas in this town, but there are also areas that aren’t attractive, like the rubbish disposal areas at the bottom of our apartment blocks. There is rubbish coming out of the bins, and flies, cockroaches and rats running all over the rubbish. It is unpleasant to look at, smelly, and it makes the environment very unhealthy.
Sample writing:
时态用一般现在时，以第一人称为主
注意书信的格式
多种句型陈述问题
The problem is that the rubbish collectors do not come often enough to collect the rubbish. The people living here may also be throwing away too much rubbish.
We could try to ask people to produce less rubbish. I suggest that rubbish collectors collect rubbish more often as well.
I believe that a better environment can be created in this town and we should all work together to achieve it.
Yours faithfully,
Wang Xi
注意书信格式
提出产生问题的原因，并给出建议
提出希望和号召
Group work
级别 项目 A (正确) B （1—2处错误） C （3—4处错误） D
（>4处错误）
格式
时态
连接词
句式
拼写
书写
Check your composition in your group.
Share your stories!
Exchange your letter with your partner, then correct mistakes you made.
v.— n.
pollute —— act —— protect —— inspire ——
build —— create ——
pollution
action
protection
inspiration
building
creation
1. Write different forms of the words. Then add more to each
group.
Self Check
fame ——
wood ——
science ——
health ——
south ——
care ——
famous
wooden
scientific
healthy
southern
careful
different —— important ——
Others: sunny ——
noisy ——
harmful ——
beautiful ——
difference
importance
n. — adj.
adj. — n.
sun
noise
harm
beauty
adj. — adv.
slow ——
wide ——
sudden ——
real ——
quick ——
true ——
happy ——
loud ——
slowly
widely
suddenly
really
happily
loudly
quickly
truly
Add more words to each group.
Group work
v.—n. : educate—education, meet—meeting, paint—painting
n.—adj. : wool—woolen, north—northern, wind—windy
adj.—n. : silent—silence, patient—patience, absent—absence
adj.—adv.: actual—actually, quick—quickly, sure—surely
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
Suggested answers
Kinds of pollution Ways to cut down
water pollution
land pollution
noise pollution
air pollution
ask factories not to throw waste into the rivers; 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 airports away from places where people live
encourage people to use public transportation instead of driving; reduce the number of factories that burn coal
Let’s care for the earth and make it a better place!
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