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與復(fù)習(xí)) 1. Greetings. 2. Guessing game. Step ⅡPresentation and practice (自主探究) T: Please write the meanings on your paper air______ smoke ______ factory ________ dirty________ clean ______ alive _________ everywhere_______ important ______ 2. Learn the new words. T: Let’s listen and say the new words. Ss: read these words after teacher. 3. Work in groups to read the new words. Recite the new words, and then recite in groups?! ?. Watch the screen and learn to say the sentences. 5. Ask pupils to talk about the famous cities of the world in groups . Sept ⅢLearn the story (文本學(xué)習(xí)) T: Here’s a riddle. It’s very long one. Please listen carefully and guess what it is. What is it? Ss: Air.