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【答案】
【1】Is the boy eating dinner?
【2】The bears are playing chess under the tree.
【3】What are they doing?
【4】Yes, they are.
【5】My mother isn’t watching TV.
【解析】
【1】原句句意:男孩正在吃晚餐。改为一般疑问句is放到主语前,首字母大写,句末用问号,其他照抄,故答案为Is the boy eating dinner?
【2】原句句意:熊在树下下棋吗?改为陈述句are放到主语后,首字母大写,句末用句号,其他照抄,故答案为The bears are playing chess under the tree.
【3】原句句意:他们正在摘苹果。画线部分是动作,用what提问,用doing代替,动作,are放到主语前,首字母大写,句末用问号,故答案为What are they doing?
【4】原句句意:他们正在吃香蕉吗?该句是are引导的一般疑问句,简略的肯定回答Yes, 主语+are.这里主语是they,故答案为Yes, they are.
【5】原句句意:我的妈妈正在看电视。改为否定句,直接is后加not,缩写成isn’t,故答案为My mother isn’t watching TV.