Unit3 section B 课件— 2021-2022学年高二英语浙江版中职教材第四册

Environment Section B Unit 3 Let’s Watch Lead-in What has happened to the earth? A What problems does the earth face?. 57.unknown The earth is suffering from a lot of pains! Lots of _________ are _________. Many _______things are_______. More and more______ rain destroys the cities. icebergs melting living dying acid iceberg [5aIsbE:g] n.冰山 melt [melt] v. 使融化 acid [5AsId]  rain 酸雨 Let’s learn Lead-in The _______ causes crop failure. _________ and _______happen more and more frequently. drought Sandstorm smog smog [smDɡ] n. 光化学烟雾 drought 干旱 Let’s learn Lead-in What’s the possible cause? The ___________ climate has become warmer. global [‘glEubl] adj.全球的 Too much waste gas is _____ _____. given off 1 2 3 The apples give off a very sweet smell.这些苹果散发出非常香甜的味儿 Lots of __________ are poured into the rivers. chemicals ['kemIkl] n.化学物品 adj.化学的 chemical product 化学物品 Let’s learn global economy 全球经济 global climate 全球气候 Lead-in The underground water is ____ _____. Too many trees are ____ _____. used up 使用完 cut down 砍掉，减少 我们应该减少空气污染。 We should cut down the air pollution. Let’s learn What’s the possible cause? 能源很快将被用完了。 Energy will be used up soon. 每样物品都被用完了。 Everything has been used up. Lead-in What’s happening and what’s the possible cause? A: I hear there are lots of icebergs melting near the North Pole. B: That’s terrible! What’s the possible cause? A: It seems that the global climate has become warmer. Let’s imitate Speaking 1 录音 It seems that the global climate has become warmer. 好像全球气候已经变暖。 It seems that … It是形式主语，真正的主语是that引导的主语从句。 e.g. It seems that she has got the news. 她好像已经知道了那个消息。 类似的句型还有： It appears that … 似乎…… It happens that … 碰巧…… It occurs to sb. that … 某人突然想到…… It turns out that ... 结果是…… It follows that … 由此得出结论，…… Let’s learn Speaking 1 Example: A: I hear there is/ are_________. B: That’s terrible! What’s the possible cause? A: It seems that____________. Let’s look