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can?t/couldn?t + be doing:“不可能在做 ……” can?t/couldn?t + have done:“不可能已經(jīng) ……” may/might:“也許、可能”用于肯定、否定, may/might + 動(dòng)詞原形: may/might + have done: may/might not + 動(dòng)詞原形: may/might not + have done: 15. Peter ______ e with us tonight, but he isn39。s nearly seven o39。 The report is written after careful investigation, so it is should be reliable 11. I39。 ② .should: “竟然”表驚奇、遺憾等 It is astonishing that we should find violence here. 我們這兒竟然有有暴力行為,真令人震驚。s a good idea. B、用于第二、三人稱陳述句中,表示說話人給對(duì)方的“命 令”“禁止”“警告”“許諾”“威脅”等。 shouldn39。 must D. can39。 may C. shouldn39。t B. mustn39。t。t D. I won39。t B. I can39。t B. couldn39。t = don39。情態(tài)動(dòng)詞與高考 (復(fù)習(xí)課 ) 一、情態(tài)動(dòng)詞的基本特征 : 情態(tài)動(dòng)詞本身有詞義,表示說話的語(yǔ)氣或情態(tài),但不能單獨(dú)在句中作謂語(yǔ),只能同動(dòng)詞原形一道構(gòu)成句子謂語(yǔ),它們沒有人稱和數(shù)的變化,大多用于所有人稱。 二、常見的情態(tài)動(dòng)詞: can/could, be able to, may/might, must, have to, need, dare/dared, should, ought to, shall, will/would, 三、情態(tài)動(dòng)詞考點(diǎn)分布情況: ㈠ 、常見情態(tài)動(dòng)詞的基本用法: 1. can/could: “能、會(huì)”“可以”(用于現(xiàn)在、過去和將來三 種時(shí)態(tài)) can?t/couldn?t: “不能、不可以” be able to: “能、會(huì)”(用于多種時(shí)態(tài)) may/might: “可以( =can/could)” must: “必須、一定”(表主觀看法,) have to: “必須、不得不”(表客觀需要,有人稱、數(shù)、時(shí) 態(tài)的變化) mustn?t: “一定不、千萬(wàn)不” 表禁止之意 needn39。t have to: “不必” 1. A puter _______ think for itself, it must be told what to do. (91) A. can39。t C. may not D. might not 2. Will you stay for lunch? (99) Sorry, ______. My brother is ing to see me. A. I mustn39。t C. I needn39。t 3. Could I borrow your dictionary? Yes, of course you _________. (92) A. might B. will C. can D. should 4. Johnny, you ________ play with the knife, you ________ hurt yourself. (96) A. won39。 can39。t。t。t。t √ √ √ √ 5. How ______ you say that you really understand the whole story if you have covered only part of the article? A. can B. must C. need D. may (2020上海 ) 6. A leftluggage office is a place where bags _______ be left for a short time, especially at a railway station. A. should B. can C. must D. will