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Unit 4 FoodReadingDiscussHow can we keep healthy2. Eat healthy food1. Exercise morefruitvegetables Some words:tired healthier change diet lifestyle before seldom impo
Unit 5Going ShoppingGrammarThe Present Continuous Tense现在进行时Tomplayfootball.isingLucy isreada book.ingThey watchTVareingLookThe twinsthinkareing.now.现在进行时态表示现在正在进行的动作结构: be (am is are ) 动词现在分词(
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