人教版九年级全册 Unit 13 We’re trying to save the earth! Section B 3a-Self Check 习题课件 (共33张PPT)

(共33张PPT)
Section B 3a-Self Check
Unit 13 We’re trying to save the earth!
九年级下册 RJ
初中英语
Writing: Write a letter about the environmental problems
and your suggestions.
Learning goals
Is it a nice place Why or why not What are the problems Discuss in groups.
Is it a nice place Why or why not What are the problems Discuss in groups.
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
Suggested answers:
Good environment Why Bad environment Why
Central Park
clean, fresh air, full of green plants, quiet and peaceful
rubbish disposal areas at the bottom of apartment blocks
rubbish spilling out of the bins,
bad smells,
unhealthy,
full of pests
（害虫）
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 ...
市长
Less is more
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.
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:
Writing tips:
Good Sentences
Everyone in this town should play a part in cleaning it up.
To cut down air pollution, we should take the bus or subway instead of driving.
The river used to be so clean.
Let’s take action now!
All these small things can add up and become big things that can improve the environment.
Dear Sir/Madam,
I have lived in this town ever since I was born and I love this town very much.
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
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.
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.
提出产生问题的原因，并给出建议
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.
Exchange your letter with your partner, then correct mistakes you made.
1. Write different forms of the words. Then add more to each group.
v. — n. n. — adj.
pollute— fame—
act— wood—
protect— science—
inspire— health—
build— south—
create— care—
pollution
famous
action
protection
inspiration
building
creation
creativity
wooden
scientific
healthy
southern
careful
Self Check
1. Write different forms of the words. Then add more to each group.
adj. — n. adj. — adv.
different— slow—
important— wide—
sudden—
real—
difference
importance
slowly
widely
suddenly
really
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 dispose of 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
完形填空
(2021 ·南京中考) What does the word ecology mean
It was 1 by Ernst Haeckel, a German biologist. He joined two Greek words: oikos, meaning “house”, and logie, meaning “the study of”. Together they mean “the study of the house”.
1.A. proved B. invented C. marked D. accepted

Exercises
The “house” Haeckel had in mind is our _____, Earth. Earth is home for all living things—humans, animals, plants, and even tiny microbes.
To study a house is to learn how its residents（居民）use it. An ecologist is a scientist who studies the _____ between organisms （生物）and their environment. The environment is an organism’s surroundings. It may ______ water, gases, rocks, and temperature.
2.A. planet B. building C. project D. surface
3.A. feeling B. relationships C. distance D. competitions
4.A. pollute B. control C. include D. reduce



2
3
4
Ecologists also study the balance of using the environment while protecting it.
An ecologist once asked a boy _____ he thought it meant to protect the environment.
The boy said, “You go into the forest and look for somebody who wants to cut down a tree. You take away his axe. You tell him about how _____ trees are. You say they are good for natural beauty, saving soil, and giving shelter to birds and other animals. ”
5.A. who B. whose C. why D. what
6.A. wild B. common C. wealthy D. important


5
6
“ Good answer,” said the ecologist, “_____ it may not be easy to find a woodcutter to talk to. Also, remember that sometimes it’s _____ to cut down a tree. If we cut down too many trees, the forest will disappear. If we don’t cut down any trees, we won’t get any resources from the forest. We have to find the right _____. ”
7.A. but B. and C. so D. or
8.A. comfortable B. tiring C. impossible D. necessary
9.A. mystery B. temperature C. balance D. symbol

7
8
9


“I get it,” the boy said. “We need the forest’s ______ for wood and paper or we might not have desks or notebooks for school.”
“Exactly—and school is a good place to learn about ecology,” added the ecologist. “Then you will know how to protect the natural environment.”
10.A. soil B. resources C. landscape D. wildlife

10
Write a letter about the environmental problems and your suggestions.
1. What are the problems
2. Where are they
3. What or who is causing
these problems
4. How can we solve the problems
5. Say your hope.
Summary
Protecting the environment
Solutions
close down the factories, help to clean up the river, take the bus or subway, ride a bike, bring a bag to go shopping, throw rubbish in the cans, turn off the lights when you leave a room, use paper or reusable bags, recycle books and paper, turn off the shower while you are washing your hair, don’t use paper napkins, rethink, reuse, recycle
Protecting the environment
Talking about it
We are trying to save the earth.
The river used to be so clean.
It was considered the nicest river in town.
The air is badly polluted.
We should help save the sharks.
(2021·宜宾中考) 你校English Corner将以“绿色生活，从我做起”为主题，组织全校英语征文比赛。请你以Going Green Starts with Small Things为题，用英语写一篇征文参赛。
内容包括：
Homework
Homework
内容要点 具体做法 理由
绿色出行 步行或骑自行车上学 ……
厉行节约 节约用电（或水、食物等）
其他方式 ……
提出倡议 …… ……
THANKS
谢谢聆听！