重点语法：能正确使用反意疑问句
【一】含be(is, are, was, were)动词的反意疑问句
① You are from America, aren’t you? Yes, I am. No, I’m not.
② It isn’t very cold today, is it? Yes, it is. No, it isn’t.
【二】行为动词的一般现在时的反意疑问句
① You often watch TV in the evening, don’t you? Yes, I do. No, I don’t.
② The students don’t study hard, do they? Yes, they do. No, they don’t.
③ Mary studies Chinese hard, doesn’t she? Yes, she does. No, she doesn’t.
④ The boy doesn’t often go to school by bike, does he? Yes, he does. No, he doesn’t.
【三】行为
