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ns) work Pair work in 1a. Let the Ss listen to 1a once and do 1b alone. T: Right. Now look at this picture. What’s the weather like? S1: It’s a sandstorm. T: How do you like the weather? S2: I think it’s terrible. T: People can’t see things clearly. And it’s bad for our health. Now listen to the tape and choose the best answer in 1b. When you are listening, pay attention to the main idea. … T: Now please check answers. The boy and girls are talking about… S1: B, the reasons for sandstorms. … Step 2: Let the Ss listen to 1a again and plete the functions of trees in 1c. They can discuss in pairs. T: Listen to 1a again and in 1a, listen and choose the best answer in 1b. . S1: It’s a sandstorm. S2: I think it’s terrible. S1: B, the reasons for sandstorms. … Read and plete the functions in 1c. Discuss in pairs. S1: Trees can stop the wind from blowing the earth 引導(dǎo)學(xué)生預(yù)測課文內(nèi)容,為完成聽力降低難度。1b 的聽力是抓對話的主題,不能直接找 到主旨句,而是要通過歸納的 方式得出,如果教師提示學(xué)生用 “排除法 ”,可以幫助學(xué)生作出正確的選擇。 如果學(xué)生基礎(chǔ)較好,也可以將 1c調(diào)整成 聽的活動,學(xué)生能夠找到答案,但會很難記下來。因此,可以用聽讀結(jié)合的方式,先聽兩 find the functions in 1c. … T: What are the trees’ functions? S1: Trees can stop the wind from blowing the earth away. S2: They can also stop the water from washing the earth away. away. S2: They can also stop the water from washing the earth away. 遍,記下關(guān)鍵詞,再通過朗讀,檢查答案。 5 Postlistening (10 mins) Group work Group work Step 1: Let the Ss read 1a in groups and then role play it. T: Read 1a with your group members and act it out. Step2: Let the Ss read again and find the important phrases in 1a. Then write them down on the Bb. T: Now read 1a sentence by sentence, underline the important phrases and then write them down on the Bb behind. … T: OK, let’s look at your notes. , “change into”. Who can tell us its meaning? S1: It means “turn into”. Read 1a in groups and then role play it. Read