Unit 2 Saving the earth. Topic 2 All these problems are very serious. Section A 课件(共26张PPT)

课件26张PPT。Unit 2 Topic 2 All these problems are very serious. Section ADo you know them?We had a happy life before.Don’t eat too much. We have to save the bamboos. People pollute the environment. As a result, we have less and less food to eat. A. Listen to the tape and circle the phrases you hear.become weaker destroy the environment disappear rapidly on this earth enough bamboo to eatB. Listen again and fill in the blanks.1. Now some kinds of animals are becoming _____ _____ _____. 2. Some animals are _____ _____of dying out completely. 3. In the past, pandas lived a quiet life and had _____ _____food. 4. Humans have come to_____ the importance of protecting animals. 5. We should _____ _____ ____to protect them.do our bestin dangerplenty ofrealizefewer and fewerDo you know what they mean?be in danger of （out of danger） dying out come to do sth处于……的危险之中 (脱离危险) 濒临灭绝 开始做某事What happened?air pollutionlight pollutionlitterwater pollutionsoil pollutionnoise pollutionTranslate the sentences.It says that China has become the world’s largest producer and user of coal. As a result , air pollution has become a serious problem. But the government is doing something useful to protect the environment. None of us likes pollution. Everyone should care for wild animals and plant more trees. We should do everything we can to protect the environment.It rained hard, as a result, we couldn’t go out. He was late as a result of the heavy rain. as a result (结果) (先交待原因, 再用as a result连接结果。) as a result of（由于） (先交待结果, 再用as a result of 连接原因。 )none指三者或三者以上的“没有,都不”, 常与of 连用, 既可修饰可数名词, 也可修饰不可数名词,谓语动词用单复数均可。 eg. 他的朋友当中一个也没有去过巴黎。 None of his friends has/have ever been to Paris. Read 1a and answer the following questions.What are they talking about? 2. Why is air pollution a serious problem in China? 3. What should students do and not do to protect the environment? 4. Can you give some advice to the government?They are talking about air pollution and envionment protection. Because China has become the world's largest producer and user of coal. We shouldn’t leave rubbish here and there. Don’t spit anywhere in public. Don’t walk on grass or pick flowers. Everyone should care for wild animals and plant more trees. 不定代词和不定副词有哪些？ somebody, someone, something, somewhere anyone, anybody, anything, anywhere none, nobody, nothing, nowhere everybody, everyone, everything, everywhere Everything begins to grow in spring. Something is wrong with the bus. Everybody likes her.不定代词作主语时, 谓语动词一般要用单数形式There is something wrong with the clock. There’s nothing new in today’s newspaper. Do you have anything to drink?形容词、动词不定式修饰不定代词、副词时，应置于 不定代词、副词之后下面的题你会做吗？Everyone is in the hall, _____? Everything goes well, _____? aren’t they在反义疑问句中，表示人的不定代词作主语时，其反义疑问句的主语通常用they；当句 ... ...