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dn’t you? You39。 He needs help, doesn’t he? ②當(dāng) need , dare 為情態(tài)動詞時 , 反意疑問句附加部分用其本身。t it? It cannot be true, is it? It can happen soon, doesn39。t;前面否定則后面用肯定 can, eg: He can swim very well, can’t he? He can’t speak English, can he? ② 如果 can 表示 猜測 , 前面是肯定 , 后面 則 用 be 動詞否定形式或者助動詞否定形式 +主語。t she? You must have told her about it, haven39。t+主語 ”。t+主語 ”;如果強(qiáng)調(diào)動作的完成(一般沒有明確的過去時間狀語),問句要用 “haven39。t+主語 ”或 “wasn39。t they? You must leave now, needn’t you? ③ 當(dāng) must 用來表示對現(xiàn)在的情況進(jìn)行推測時,問句通常要根據(jù) must 后面的動詞采用相應(yīng)的形式 ; He must be good at English, isn39。t stop your car here, must you? ② must 表示 “ 有必要 ” 時,附 加問句通常要用 needn39。 Let’s have a look at your book, shall we? Let’s try again, shall we? Let us know the time of your arrival, will you? Let me help you, will you? 5. 情態(tài)動詞出現(xiàn)時,反意疑問句的構(gòu)成規(guī)則: (1) 當(dāng)陳述部分情態(tài)動詞 為 must 時 ,問句 可有以下幾種 情況: ① mustn39。t you? ② 以 Let39。t you。s an engineer, do they? She doesn39。t you? They don39。t imagine the twins have arrived, have they?