八年級英語上冊unit2keepinghealthytopic2imustaskhimtogiveupsmokingsectionamust用法仁愛版-在線瀏覽
2024-07-25 15:32本頁面
【正文】 r and Mrs when you speak to older people . You mustn’t talk too loudly . Complete the sentences with must or mustn39。t. 1. You _______ be late for school. 2. You _______ eat in the library. 3. You _______ ride your bike in the playground. 4. You _______ do your homework. 5. You _______ listen to the teacher. must must mustn39。t mustn39。 Must I finish the work before dark? No, you needn’t. 我必須在天黑前完成工作嗎？ 不，你沒必要。 (3) must在 肯定句中 可以表示“ 一定要， 一定是，一定會 ”等意思，即 表示不 可避免性、肯定性、可能性、推定 或揣測等意思 。 辨析： must與 have to have to往往可與 must互換，但 兩者的 意義和用法有些不同 。 (2) must只能表示現(xiàn)在“必須”，表示過去 的事情要用 had to。 (3) must與 have to的否定意思不同。 You don’t have to do that. 你不必做那件事。 1. They have got lots of homeworks to do. 2. When you accept a present, you must use both hand. 3. You mustn’t break anything. It’s bad lucky. 4. There are so much people in the library. 5. It was ve
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