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外研版高中英語(yǔ)必修4module5atripalongthethreegorgesgrammar2課件(編輯修改稿)

2024-12-24 13:12 本頁(yè)面
 

【文章內(nèi)容簡(jiǎn)介】 h you? 語(yǔ)氣 強(qiáng) 弱 表許可 ,征詢意見(jiàn) can, will could / may / would / shall / might 三、表示許可 : may / might, can / could might, could 比較 委婉 , 一般多用于 疑問(wèn)句 。 can, may 表達(dá)的語(yǔ)言比較隨便。 在以 could, might 表示 征求對(duì)方意見(jiàn) 或 表示請(qǐng)求 時(shí),回答應(yīng)相應(yīng)使用 can, may。 must may, might, can, could 肯定句 語(yǔ)氣 強(qiáng) 弱 表可能性 (推測(cè) ) ?There must be a mistake. ?It can be true. ?In those days few workers could support their families. ?You may walk ten miles without seeing a house. ?He might get there on time. Grammar3. Observation(2ms) 語(yǔ)氣 強(qiáng) 弱 表不可能 (推測(cè) ) can’t, couldn’t may not, might not 否定句 ?She can’t be serious. ?We couldn’t have done better. ?People may not pick flowers in this garden. ?She was afraid they might not like the idea. Grammar4. Observation(2ms) mustn’t, shouldn’t had better not 表禁止 ?We mustn’t waste our time. ?They shouldn’t leave so soon. ?You’d better not disturb him. Grammar5. Observation(2ms) should, must have to 表義務(wù) (應(yīng)該 ) 有時(shí)態(tài)變化 Grammar6. Observation(3ms) ?You should do what your parents tell you. ?If you can’t finish the book by then, you must e and renew it. ?This is a lovely party, but we have to go because of the babysister. ?The bridge was not wide enough so that somebody had to give way. 1. 表示否定的情態(tài)動(dòng)詞的用法 : 部分情態(tài)動(dòng)詞的否定式是情態(tài)動(dòng)詞中的考點(diǎn)之一。 mustn’t 不準(zhǔn) , 禁止 needn’t 沒(méi)必要 ( = don’t have to ) can’t
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