廣東版開(kāi)心英語(yǔ)六下unit11課件2(完整版)
【正文】 只能用于一般現(xiàn)在時(shí)和一般過(guò)去時(shí)，（在間接引語(yǔ)中） have to 可用于更多的場(chǎng)合。 You’d better get some sleep. You’d better not invite him. You should do what your parents tell you. You oughtn’t to smoke so much. 最好 最好不 應(yīng)該不應(yīng)該 必須不許不得不 不必要You must get some sleep. You mustn’t invite him. You have to do what your parents tell you. You haven’t got to smoke so much. Model verbs (Ⅱ ) must have to have got to must not / mustn’t don’t have to haven’t got to / hasn’t got to Must sb… ? Do / Does sb. have to … ? Have / Has sb. to … ? （必須、應(yīng)當(dāng)） （必須、不得不） 1. have to 由 have + to組成。 4. 你 抽這么多的煙。 S
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