课件47张PPT。教学课件
英语 九年级上册 外研版
Module 12 Save our world Unit 1 If everyone starts to do something, the world will be saved. Talk about the pictures. Warm up factory
pollute
recycle
waste
enemy
crop n. 制造厂；工厂
v. 污染
v. 回收利用，再使用
(废品)
n. 废料；废弃物
n. 敌人；仇人
n. 庄稼；作物 kill
oil
less
hopeless v. 杀死；弄死
n. 石油
adj. 较小的；较少的
n. 较少数；较少量
adj. 无望的What environmental problems do you know? river pollution air pollutionoil pollution industrial waste pollutionwhite pollutionThese pollutions are a danger to our health and to our world.What can we do to save the world?We can save the world by recycling waste.We can reduce air pollution by riding bicycles.We can save water by taking shorter shower.We can save energy by turning off the lights when we leave a room.What else can we do?1. Turn off computers when we are not
using them.
2. Use both sides of a piece of paper.
3. Send e-cards instead of paper cards.
4. Buy products that can be used again.
5. Reduce waste.P96Work in pairs. Look at the pictures and talk about them.
Use the words in the box to help you.factory pollute recycle waste Pair work1Some laws should be made to stop factories polluting. At the same time, people's awareness of environmental protection should be aroused and raised.The waste air from factories is exhausted(排放). Many factories pour waste water into the lakes and rivers. And the waste plastics are also thrown into the river.The factories are causing a lot of pollution.③How do you think the factories can reduce pollution?①What may cause pollution?②Why do many of the factories pollute the air and rivers? Possible answerListen and complete the sentences. 1. The factory is causing a lot of __________.
2. There should be some ________ to stop the pollution.
3. We can ________ waste products, such as ________ and paper in a recycling centre. pollutionrules recycle glass2123Listen and read.Lingling: After our lesson on the environment, I’m worried about the future. Pollution is our great enemy, and we have to fight it. If the rivers are polluted, farmers can’t use water for their crops.
Tony: And in some places, pollution from factories spreads over cities and villages. It makes people ill, and may even kills them. Pollution is a danger to our health.3Betty: And there’re so many cars on the road. They use so much oil and cause pollution as well.
Daming: But we are only students. We can’t do anything about factories and cars.
Betty: It’s no use talking about things we can’t do. We’ve got to think of things we can do!
Daming: Such as…?
Lingling: Do you think we can make our school a green school?
Daming: What’s a green school?Lingling: At a green school, every class collects waste or rubbish which can be recycled or used again. Then the school sells the waste and uses the money to help students in poor areas.
Daming: Nice idea!
Betty: Students at a green school also learn ways to save energy and recycle at home. That means less waste.
Tony: That’s a good idea. Though pollution is heavy now, I don’t think it’s hopeless. If everyone starts to do something, the world will be saved.Now complete the notes. Pollution problems
If the rivers are polluted, ____________
____________________________.
2. In some places, pollution from factories __________________________________.
3. The cars on the roads _______________
__________________________________. farmers can’t use them to water their crops spreads over cities and villages use so much oil and cause pollutionWhat the students can do
4. Support a green school: every class ___________ which can be ___________________. Then the school _____________to help students ______________.
5. Students learn __________________________________. That means _________. recycled or used again collect waste sells the waste in poor areas ways to save energy and recycle at home less wasteRead and try to recite the conversations in 5-10 minutes.Role-play1. Role play the conversation in groups;
2. Role play the conversation in front of the class.Let’s see which group does the best. Pollution is our great (1) ________. Pollution from (2) ________ is a danger to our health, and may even (3) _______ people. Factories sometimes (4) ________ the rivers, and the farmers cannot use the water for their crops. Pollution (5) _______ over cities and villages, and that (6) ________ even more danger. Cars use a lot of (7) ___ and cause pollution too. cause enemy factory kill oil pollute spread enemyfactories kill pollute spreads causes oilComplete the passage with the correct form of the words in the box.4Language points1. And in some places, pollution from factories spreads over cities and villages.在一些地方， 来自工厂的污染遍布城市和村庄。spreads over意为“遍布在……, 复盖在……”
What he studied spread over many fields.
他所研究的内容涉及许多领域。2. Pollution is a danger to our health. 污染有害我们的健康。a danger to…意为“对…是一种威胁；有伤害”，
相当于be dangerous to。
It?is?a?danger?to?your?computer’s?health.?
=It?is?dangerous?to?your?computer’s?health.?
这对你电脑的健康是个威胁。3. And there’re so many cars on the road. They use so much oil and cause pollution as well.路上有很多车。它们使用很多石油并且也引起污染。so many很多
You can’t crush so many people into the classroom.你不能让这么多人挤进教室。so much很多Furniture is so bulky, it takes so much room.家具体积太大，占了太多空间。There was so much noise outside that we couldn’t hear the teacher.外面嘈杂声很大， 以致我们不能听到老师的话。
He feels nervous when her faces so many people.
面对那么多人， 他感到紧张。辨析：so many与so much
so many 用来修饰可数名词， so much 用来修饰不可数名词。I am going to London and my sister is going to as well.
我要去伦敦， 我妹妹也去。(2).as well 在口语中也可置于句中， 作“也好，也行”或“倒不如”解。用来缓和语气。
You may as well go.你去也好。as well 也；又(1). 相当于too或also, 常位于句末，无须用逗号与句子隔开。China is a socialist country, and a developing country as well. 中国是一个社会主义国家，也是一个发展 中国家。
4. Such as …？例如……
such as 表示举例，意为“例如，诸如此类的，像……那样的”，相当于like 或 for example。 Animals such as rabbits and deer continue to be active all winter. 像兔和鹿这样的动物整个冬天都很活跃。
There are few poets such as Keats and Shelly. 像济慈和雪莱这样的诗人现在很少了。5. That means less waste.那意味着更少的废弃物。(1). less 较小的，较少的； 较少数，较小量1). less 是 little(小；少)的比较级。
He spends less time (in) doing experiments.
他做实验花的时间较少。2). “less+形容词或副词”构成比较， 译为“较不，更不”。
It is less cold than it was yesterday.
天气不如昨天冷。3). less作名词时， 表示“较小量，较少量”。
Less than ten of the thermometers remain.
这些温度计剩下不到十支。4). less 作介词时， 译为“不足， 还差”。
Five less two leaves three. 五减去二余三。
The time cycle is a year less three days.
(时间)周期是差三天一年。6. I don’t think it’s hopeless.我不认为它是没有希望的。hope可作名词和动词， 表示“希望”(1). 用于表示可能实现的事情， 后接从句， 用陈述语气。
I hope I shall see him again. 我希望再见他一次。(2). hope 多用于指多好事物的盼望， 预想； 对坏事物的预想多用I am afraid…
I hope it will be fine tomorrow.
我希望明天天气好。(3). hope 所希望的一般指将来或现在的事情， 不指过去的事情。
I hope he will come. 我希望他会来。 (4). hope 可用于 hope to do 结构， 但不能说hope sb. to do sth.
I hope to watch the football match again.
我希望再看一次那场足球赛。Listen and mark the words which the speaker links. 1. After our lesson on the environment, I’m worried about the future.
2. Students at a green school also learn ways to save energy and recycle at home.Now listen again and repeat.Pronunciation and speaking5 在同一个意群(即短语或从句)中，如果相邻的两个词中前者以辅音音素结尾，后者以元音音素开头，就要自然地将辅音和元音相拼，构成一个音节，这就是连读。
连读的音节一般不重读，只需顺其自然地一带而过，不可以加音，也不可以读的太重。连 读 英语连读的规则：
1. “辅音+元音”型
2. “辅音+半元音”型
3. “元音+元音”型
注意：若前一个词的结尾和后一个
词的开头相同，这两个词要
连读。Work in pairs. List the pollution problems in your place. Choose one problem and say what should be done about it.—The air pollution in our
city is getting worse. What can we do to stop it?
—I think we can ride our bicycles to school more .6—The water are polluted, farmers can’t
use them to water their crops .We
should stop the factories from
polluting the river.
—I agree. And we should stop them
from polluting the air as well. SampleExercises一. 根据句意及首字母提示完成单词。1. Don’t w_____ water. Please turn off the cock after you wash your hand.
2. I get a job in a f_________.
3. It’s more and more important for every to save e__________ now.
4. Air p_______ is quite harmful to our health.
5. The students from a green school are helping collect waste paper and bottles for r_______.asteactorylectricityollutionecycling二. 用所给单词的适当形式填空。We should give up those __________(waste) habit in order to save our world.
2. Some factories________ (cause) pollution.
3. I think ______________(environment) education for kids is necessary.
4. Most students on our school often collect ________(reuse) waste for recycling.
5. If we don’t look after our earth well, the future will be _________(hope).
wastefulcauseenvironmentalreusablehopeless三. 根据汉语意思完成英语句子。1. 每个人都应该关心自己的健康。Everyone should ______ _______ _________ his health.2. 来自该市的很多人都决心节约用水。______ _______ people from the city made up their mind to save water.becarefulabout/ofSomanyMike likes drinks_____ ______ milk tea and cola.4. 我们应该谈谈我们的事情。3. 迈克喜欢奶茶和可乐之类的饮料。We should ____ _____ what we can do.suchastalkabout The changing global environmentWords for describing the environmentText understandingWays to develop the paragraphs Summary What have we learnt? Recite the diagoue Do the exercise book on page 178 Homeworkhomework
