初中英語情態(tài)動詞專項講解-文庫吧
2025-03-19 23:52 本頁面
【正文】 定回答為must，否定回答為needn’t或don’t have to?！狽eed I stay here any longer? 我還有必要留在這兒嗎？—Yes, you must .是的?！狽o. you needn’t /don’t have ，你不必。(2).need還可以作實義動詞，此時有人稱、數(shù)和時態(tài)的變化，如果是人作主語后邊多接動詞不定式。I need to do it right 。He needs to learn more about the 。如果是物作主語，一般用need doing與need to be done這種情況下應(yīng)注意兩點：①. 主動形式的動名詞doing具有被動的含義；②.該動名詞可以改為其動詞不定式的被動形式而句子的意義不變。.The door needs painting. = The door needs to be 。Your car needs mending. = Your car needs to be 。6. dare的用法：dare意為“敢、敢于”,用法近似于need，有兩種詞性：（1）dare作為情態(tài)動詞，多用于否定句、疑問句或條件句中，無第三人稱單數(shù)形式，只有一般現(xiàn)在時和一般過去時。Dare he tell them what he knows ? 他敢告訴他們所知道的情況嗎？I daren’t ask her – will you do it for me ? 我可不敢問她，你能幫我問問嗎？（2）dare作為實義動詞，此時有人稱、數(shù)及時態(tài)的變化。He doesn’t dare to break his 。注意：在口語中，dare的各種形式常與不帶to的不定式連用。Do you dare tell her what I said? 你敢告訴她我說的話嗎？I didn’t dare look at him. 我不敢看他。7. shall的用法：shall表示征求對方意見（多用于第一、三人稱），Shall we go out for a walk?我們出去散步好嗎？在英語中，我們可以用其他多種方式提出我們的建議或征求對方意見。(1).用“Let39。s do...”來提出建議。Let39。s go for a walk after supper.(2).用“What/How about...?”來提出建議；about后接名詞或動詞ing形式。What about/How about a drink? What about/How about taking Tom with us?(3).用“Why not...?”來提出建議，表示“何不……”not面后接動詞原形?！癢hy not...?”實際上是“Why don39。t you/we...?”的簡略形式。Why not meet at the school gate at eight? Why don39。t we stay here another day?(4).用“Would you like...?”來提出建議，意思是“你想要……嗎?”Would you like后可接名詞或不定式。Would you like a cup of tea? Would you like to go and see her?因此，如果我們說：“去游泳好嗎?”英語中可有這樣幾種表達法：Shall we go for a swim? Let39。s go for a swim，shall we? What about/How about going swimming? Why not go for a swim? Would you like to go for a swim? What do you think of going for a swim?8. should的用法：（1）.should意為“應(yīng)該”，可表示勸告、建議、義務(wù)、責任等。We should protect the 。（2）Should have done表示對過去動作的責備、批評。You should have finished your 。（事實上你沒有完成。）9. will的用法：will表示意愿、意志、打算，可用于多種人稱。I will help you if I’m free this ，我就會幫你。注意：will在there be句型中的形式及其句式變換。由于“一般將來時”的結(jié)構(gòu)可以用“will+動詞原形”來表示，所以there be句型的一般將來時的形式就是there will be。（一定不能說there will have）There are many students in our school.→There will be many students in our school. There will be a sports meeting next week.一
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