课件31张PPT。WelcometoC2G3单 位：广州市黄埔广附实验学校
使用教材：上海牛津版九年级下册
课 题：Unit 3 The environment
Writing Air pollutionChallenge
yourselfBingo（三）单词拼写
Our school is not l_____. It's small.
2. We should not kill animals. We should p______ them.
3. Air pollution is a big p_______. What can we do with it?
4. In some places of the world, people use fire to b____ rubbish.
5. Now, wild animals are getting fewer and fewer because people k___ them for money.
6. I have very f___ friends here, so I always stay at home on weekends.argerotectroblemurnillew二、单元知识复习 Knowledge Review ◎ 7A Unit 3 The Earth◎ （四）完成句子
1. 请把这些垃圾扔掉。
Please _____ _____ the rubbish.
2. 学校为学生提供早餐。
The school ________ the students ____ breakfast.
3. 我们必须停止把垃圾倒入海里。
We must stop _______ the rubbish ____ the sea.throw awayprovides with putting into二、单元知识复习 Knowledge Review ◎ 7A Unit 3 The Earth◎ （四）完成句子
4. 学生每天至少要花 15 分钟清洁教室。
__ _____ students more than 15 minutes __ _____ the classroom.
5. 广州是一座多么漂亮的城市啊!
_____ _ _________ city Guangzhou is!
6. 明天我们有时间的话将去参观博物馆。
The museum ____ _ _______ if we have time tomorrow.
7. 我经常请教体育老师怎样才能游泳快些。
I often ask my PE teacher ____ _ ____ swim faster.It takes to clean What a beautifulwill be visitedhow I can二、单元知识复习 Knowledge Review ◎ 7A Unit 3 The Earth◎ （三）单词拼写
We like to c_____ the Baiyun Mountains at this weekend.
2. The doctor is doing his best to s____ the little baby.
3. The teacher asks us to d______ the question in groups.
4. The box is heavy. Can I c____ it with you?
5. Watching TV too much is h______ to your eyes.
6. It's dangerous to f____ against the fire alone.limbaveiscussarryarmfulight二、单元知识复习 Knowledge Review ◎ 7B Unit 4 Save the trees ◎ （四）完成句子
1. 树很重要，因为它们能够吸收有害的气体。
Trees are very important because they can ____ __ harmful gases.
2. 这张桌子是由木头制成的。
The desk __ ____ __ wood.
3. 每年都有数以百万计的游客来广州游玩。
_______ __ tourists come to Guangzhou to visit every year.take inis made ofMillions of二、单元知识复习 Knowledge Review ◎ 7B Unit 4 Save the trees ◎ （四）完成句子
4. 运动有益于我们的健康。
Doing sports __ ____ ___ our health.
5. 你知道他什么时候来吗？
Do you know _____ __ ____ _____?
6. 我们每天必须保持教室干净。
The classroom ____ __ ____ clean by us every day.
7. 我们的城市多么干净啊!
____ _____ our city is!is good forwhen he will comemust be keptHow clean二、单元知识复习 Knowledge Review ◎ 7B Unit 4 Save the trees ◎ （三）单词拼写
1. The p______ of my journey to Paris is to see the Eiffel Tower.
2. The food must be kept at a low t__________, or it will easily go bad.
3. Without water, the Earth would be a l______ place.
4. Throwing rubbish is a bad h____.
5. Can you g____ who is the winner of this game?
6. We should only buy and use products f______ to the environment.urposeemperatureifelessabituessriendly二、单元知识复习 Knowledge Review ◎ 9B Unit 3 The environment（四）完成句子
1. 他们处境危险，我们必须要帮助他们离开。
They are __ ______. We must help them off.
2. 如果我们不保护环境，我们的生活就会有影响。
__ we don't protect our environment, our life will _____ _ _________.
3. 我们应该采取行动来保护环境。
We should ____ ______ to protect the environment.in dangerIf make a differencetake action二、单元知识复习 Knowledge Review ◎ 9B Unit 3 The environment（四）完成句子
4. 连续一周下雨，导致城市水灾。
It have rained for a week. This ______ __ floods around the city.
5. 明年工人将建造一座新桥。
A new bridge ____ __ _____ by the workers next year.
6. 我想知道你多长时间清洁一次你的房子。
I want to know ____ ____ ___ _____ your house.
7. 天气真好！我们去散步吧！
_____ _____________ weather it is! Let's go for a walk.results inwill be builthow often you cleanWhat fine/ nice/ good二、单元知识复习 Knowledge Review ◎ 9B Unit 3 The environment（三）单词拼写
1. I am a______ by my alarm clock every morning.
2. Don't stare at a computer s_____ for too long. It's bad for your eyes.
3. I n______ that he was awake and wanted to eat something.
4. When natural disaster came, everyone wanted to keep a____.
5. He was b____ hurt because he had a traffic accident.
6. The old man was d___, so he can't hear anything.wokencreenoticedliveadlyeaf二、单元知识复习 Knowledge Review ◎ 9B Unit 4 Natural disasters（四）完成句子
1. 盯着别人看是不礼貌的。
It's impolite __ ____ __ others.
2. 一旦我们决定了, 就一定要坚持下去。
Once we made a decision, we should ____ ____ it.
3. 孩子们见到那只怪物都惊呆了。
The children saw the monster __ _______.to stare atstick within surprise二、单元知识复习 Knowledge Review ◎ 9B Unit 4 Natural disasters（四）完成句子
4. 不愿意为学习花时间是错误的。
___ wrong __ ____ no ____ to study.
5. 上学期我们学校成功地举办了校园英语节。
The School English Festival ____ ____ successfully in our school last term.
6. 他们还没有决定什么时候离开。
They haven't decided _____ __ _____.
7. 多么有用的一本书啊！
_____ _ ______ book it is!It's to have time was heldwhen to leaveWhat a useful二、单元知识复习 Knowledge Review ◎ 9B Unit 4 Natural disasters一、话题朗读 Topic Reading Our world is in danger. The greenhouse effect, cutting down forests and bad habits are the main problems we face. In order to protect the environment, we need to take proper action. We should be different from many consumers and become “green consumers”. This means that we should only buy and use products friendly to the environment. We should also recycle as many things as we can. We can reuse things for the same purpose as before, or we can use them for new purposes. If we just learn to live in new and different ways, we can make a difference.What other bad habits do you know?the air, put…into…, harmful gases, many factories
Many factories put harmful gases into the air. Use the following words to make sentence. was, away, rubbish, throw, everywhere
Rubbish was thrown away everywhere. some hunters, were, endangered animals, killed,by
Endangered animals were killed by some hunters.
话题范文精选 As we all know, the environment around us is getting worse and worse. One of the most serious problems is the haze(烟雾), which has a bad effect on people’s health. Besides, some people in some places even have no clean water to drink because of the water pollution. It is time for us to take some action to cope with these problems. Enough attention should be paid to this serious problem and effective measures should be taken. Firstly, we can often go to school on foot or by bike instead of by car. Secondly, we can use shopping baskets rather than plastic bags when we go shopping. Thirdly, we can recycle something and use both sides of the paper if necessary. Last but not least, we must always keep in mind that we have only one Earth and realize the importance of protecting our Earth. Part 5 书面表达 每年的6月5日为世界环境日。假如你是李华，请你向你们学校的英语报社投稿，以 “Air Pollution” 为题写一篇短文。内容包括： 工厂排放有害气体，导致温室效应；汽车
污染大气；树木被砍；
2. 选择其他出行方式，如骑车或步行；
3. 其他改进措施：……（请你补充1-2点）【思路点拨】1. 审题构思，谋篇布局写
作
点
拨（一）：时态：一般现在时、一般将来时
人称：第一人称（二）词汇热身
污染 ( v. ) _______
排放有害气体________________
3. 砍伐树木 ___________
4. 越来越严重 ____________________________________
5. 导致________________________
6. 温室效应____________________
7. 步行/骑车/坐公车 _________________________________________________
8. 从小事做起 _____________八、话题写作指导与训练 Topic Compositionpolluteput harmful gases into the airworse and worse/ more and more seriouscut down the treeslead to/ result ingreenhouse effectstart out smallgo out on foot/ride a bike/ take a bussays:（三）句型热身，按要求改写下列句子
1. Many factories put harmful gas into the air. It results in greenhouse effect.(定语从句) ____________________________________________________
2. A large number of trees are cut down, It is difficult to take in the polluted air.(伴随状语)
_____________________________________________________
3. We can plant more and more trees. We can make the air cleaner. (so that)
________________________________________________________________
八、话题写作指导与训练 Topic CompositionMany factories put harmful gases into the air which results in greenhouse effect.A large number of trees are cut down, making it more difficult to take in the polluted air.We can plant more and more trees so that we can make the air cleaner. 写作评分标准Protect the environment from now now!
Start out small! (从小事做起) 参考范文Air Pollution
Nowadays, people do a lot of bad things to pollute the air. On one hand, many factories put harmful gases into the air, which results in greenhouse effect. On the other hand, the air is seriously polluted because of the waste gas caused by cars. What’s worse, a large number of trees are cut down, making it more difficult to take in the polluted air. Therefore, it’s important for us to take proper action to protect the environment. First, we should choose other ways to go to school and work, such as riding bikes and going out on foot. Second, we should be aware of the great importance of protecting the environment and do what we can do in our daily life. For example, We can plant more and more trees so that we can make the air cleaner. Third, we should stop factories from producing harmful gases.
If we try our best, our hard work will make a difference on the environment.
