3.4 Writing（同步课件）-七年级英语上册同步精品课堂（沪教牛津版）

Look and discuss put…into… S1: What’s the problem? S2: People put waste into rivers and seas. S1: What will happen? S2: This pollutes the water. 1 课堂导入 Look and discuss throw away S1: What’s the problem? S2: People throw away a lot of rubbish. S1: What will happen? S2: This pollutes the land. Look and discuss cut down (砍伐) S1: What’s the problem? S2: People cut down many trees. S1: What will happen? S2: There are fewer and fewer trees. Look and discuss kill S1: What’s the problem? S2: People kill animals to make money. S1: What will happen? S2: There are fewer and fewer animals. Look and discuss more and more cars S1: What’s the problem? S2: There are more and more cars. S1: What will happen? S2: This pollutes the air. Look and discuss burn S1: What’s the problem? S2: People burn things to make energy. S1: What will happen? S2: This pollutes the air. Read and review Problems Results throw away a lot of rubbish pollute the land put waste into rivers and seas pollute the water cut down many trees fewer and fewer trees kill animals to make money fewer and fewer animals more and more cars pollute the air burn pollute the air So it’s important to protect our earth for the future. What can we do to protect the Earth? We must/should … We mustn’t/shouldn’t … We must/should stop people throwing away rubbish. We mustn’t/shouldn’t throw away rubbish. What can we do to protect the Earth? We must/should stop people putting waste into rivers and seas. We mustn’t/shouldn’t put waste into rivers and seas. We must/should … We mustn’t/shouldn’t … What can we do to protect the Earth? We must/should stop people cutting downs trees. We must/should plant more trees. We mustn’t/shouldn’t cut down trees. We must/should … We mustn’t/shouldn’t … What can we do to protect the Earth? We must/should stop people killing animals. We must/should protect animals. We mustn’t/shouldn’t kill animals. We must/should … We mustn’t/shouldn’t … What can we do to protect the Earth? We must/should u