牛津版模块七动词.ppt

二. may, might 1）表许可，译为“可以”（正式场合） You may take the book home. 2) 表示推测，“或许，可能” 。 It may rain tomorrow. 3) 表示祝愿 May you succeed! 4) might: may 的过去式，但might表可 能性较小，或表更婉转语气。 Jim may (might) lend you money. Might I ask a question? 三. must, have to, need 1. must 的用法： 1） “必须” ，否定表禁止。回答其 问句用needn’t或don’t have to。 I must leave at 9. --- Must we hand it in today? --- Yes, you must. No, you needn’t / don’t have to. 三. must, have to, need 1. must 的用法： 2) must 还可表示一种推断和揣测。must +do对现在事实的猜测;must +have done 对过去事实的猜测. You must be joking. I can’t find my key. I must have left it in the bus. 三. must, have to, need 2. must与 have to的比较： A) have to--客观情况；must--主观看法。 I must learn another foreign language. You have to learn another foreign language if you want to work here. B) have to用于不同时态，must不行. We will have to buy another TV set. 三. must, have to, need 3. need 的用法： 1）作情态动词用时，用于疑问或否定句。回答need问句时，肯定用must,否定用needn’t / don’t have to. You need not do anything here. -- Need I go so soon? -- Yes, you must. No, you needn’t. / don’t have to. 三. must, have to, need 3. need 的用法： 2)need用做行为动词时的用法： I need to buy a new dictionary. My bike needs repairing / needs to be repaired . 四. will 和 would 的用法： 1. 表示“意愿” She won’t lend me the money. 2. 表“邀请”或“请求” Will you give me a piece of paper? 3. would比will语气更温婉。 Would like something to eat? 五. shall, should的用法 A) shall的用法 用于第一人称， 表示征求意见。 Shall I turn on the light? B) should的用法 表示劝告，建议。 You should study the article carefully. 2. 表示推测，译为 “可能，应该，该”。 He should arrive at noon. Choose the best answer 1. –Where is our head teacher, Mr. Li? --He _____ be in the office. I saw him th