新概念英語(yǔ)第2冊(cè)lesson16-18語(yǔ)法知識(shí)點(diǎn)(編輯修改稿)
2024-12-06 23:53 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 他們(當(dāng)時(shí))不得不出發(fā)。(過(guò)去時(shí)中用have to代替) They have had to leave. 他們(當(dāng)時(shí))不得不出發(fā)?！ ?2) have to和have got to往往可以互換: I have to/have got to leave home every morning at 7:30. 我每天早上7點(diǎn)半就得離開(kāi)家?！ 〉牵calways,sometimes等頻度副詞連用時(shí)，用have to往往比用have got to好: I often have to get up at you ever have to get up at 5? 我經(jīng)常5點(diǎn)就得起床。你有時(shí)候也得5點(diǎn)起床嗎? have got to 比have to聽(tīng)上去要更加口語(yǔ)化一些: Have you really got to go to bed now? 你真的現(xiàn)在就得上床睡覺(jué)嗎? I’m afraid I’ve got have to leave early tomorrow. 恐怕我必須得去睡了。我明天必須一早就出發(fā)?！ ?3)在表達(dá)“難道你不能不(做...)”的含義時(shí)，一般用“Must you ..?”句型而不用“Do you have to…?”或“Have you got to..?”句型: Must you leave now? 難道你非得現(xiàn)在就走嗎? I’m afraid have to study for an exam. 恐怕是的。我得準(zhǔn)備一個(gè)考試?！ ?4) must從還可以用來(lái)表示推測(cè): He must be
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