【正文】 氣更委婉，而不是過去式。在疑問句中還可用could,might代替，不是過去式，只是語氣更委婉，不能用于肯定句和答語中。而be able to則有更多的時態(tài)。t fishing in the pool.(must not 語氣方面比 may not 更強)你們不準在池里釣魚。 I make a suggestion? 我可以提個建議嗎? I take a look of your work? 我看看您的大作行嗎? may not make noise in the library.(may not 表示不許可或禁止)學生不得在圖書館里吵鬧。t there be a mistake?(mustn39。 should be Sam and his mother.(should be)那準是Sam和他的母親。(3)will 和 would 用于表示“預測”或“習慣性”： think he will be all right 。(否定句) the news be true? 這消息可能是真的嗎?(將情態(tài)動詞 can 置于主語 the news 前就成疑問句) can make 。注意：在口語中，dare 的各種形式常與不帶to 的不定式連用。Your car needs mending.= Your car needs to be 。He needs to learn more about the 。如：—Need I stay here any longer? 我還有必要留在這兒嗎?—Yes, you 。如: The light is on, so he must be at home ，他現(xiàn)在肯定在家。Must I hand in my homework right now? 我必須現(xiàn)在交作業(yè)嗎?(2)其否定形式mustn’t表示“ 一定不要 ” “千萬別” “禁止, 不許”.如：You mustn’t play with 。(4).表示希望、祈求、祝愿，?？勺g為“祝愿”。如：It may rain 。如:Could you do me a favour? 你能幫我個忙嗎?—Could I use your pen? 我能用一下你的鋼筆嗎? —Yes, you 。咱們老師正在游覽長城呢。(2).表示許可，常在口語中。英語情態(tài)動詞用法歸納 的用法：(1).表示能力、許可、可能性。He needs to see a doctor straightaway.（此處needs to不能換做need，因為本句是肯定句）Will he need to start earlier? 注：NEED TO BE DONE與NEED DOING可以互換，后者更為常用（這里的NEED均為實義動詞）。）You need not have ：NEED HAVE DONE的形式較為少見Need you have scolded him so severely for his bad work? He had done his best.（否定意味）He need have gone and sent that letter in person.（實際上沒有做）四、NEED與推測NEEDN’T表示“不一定”。All he need do was to was clear that he need never trouble to get up at seven told him he needn’t be in a terrible ：表示過去的NEED常用于間接引語中。以下的各種用法也遵循這條規(guī)則。I needn’t say need hardly advise never need tell me this or need help don’t think he need e.（否定轉(zhuǎn)移）注：NEEDN’T的意思其實有三種，即不必要/不一定/不應該，視具體語境而定。could 。課堂練習，復習鞏固教師：我們學完了情態(tài)動詞的用法，下面來做些練習。教師：教大家一個情態(tài)動詞的口訣口訣：動詞原形接后面，說話語氣較委婉。You don39。如：The play is not really must go 。如： You needn’t e so early.— Need I finish the work today? —Yes,you ：needn39。如：It would be about ten when he left home.[6] dare(dared)的用法Dare作情態(tài)動詞時，主要用于疑問句、否定句和條件從句中，一般不用在肯定句中。Will表示現(xiàn)在的意愿，would表示過去的意愿，也可以表示現(xiàn)在的意愿，語較為委婉。:(1)．It must / may / might have rained last ground is ，昨晚肯定/可能/也許下雨了。，用“情態(tài)動詞 + be”，“情態(tài)動詞 +be doing”:(1)．He must / may / might be listening to the radio 。如：Can [Could] this be true? 這能是真的嗎Where can [could] he have gone? 他能到哪里去了呢She can’t [couldn’t] have left so 。情態(tài)動詞后面緊跟的一個動詞用原形She may lose her 。五、教學過程教師：同學們，我們這節(jié)課要想學習的內(nèi)容是情態(tài)動詞的用法，那1這個情態(tài)動詞其實我們對于我們來說也并不陌生，平時在句子的運用也很多，那么大家告訴我情態(tài)動詞有哪些？ 常見的情態(tài)動詞有：can(could), must, may，might, shall，should, ought to ,will(would),dare, need, have to（板書）我們這節(jié)課主要來歸納下它的用法本身具有一定詞意，但不能單獨作謂語。若果我有一雙會畫畫的手，我定把這如癡如醉的荷塘活色生香的描繪一番；若果我有一部高像素的相機，我定不放過每個花開的鏡頭；若果我是一個詩人，我定把這荷塘每片光鮮艷麗的色澤融入人生的詩篇。You can’t imagine that a wellbehaved gentleman should be so rude to a ，在水中串上串下，吐著頑皮的泡泡；鳥兒從荷葉上空飛過，想親吻荷花姑娘的芳澤。，表示“與將來事實相反的假設(shè)”，用 If+主語+should +動詞原形，當“萬一(會)”講?！扒楦?、態(tài)度、語氣”主要有以下用法：(1)表示主觀的義務和必要，主要用于肯定句和疑問句，意思為“必須……，得……，要……”；由must引起的疑問句，肯定回答要用must或have to，否定回答要用needn’t或don’t have to,意思是“不必”。would表過去意愿。、可能性。3．疑問句中：常用can/could來表示說話人的猜疑、懷疑或不肯定的語氣⑴ 對當前行為、情況或狀態(tài)的推測：can/could + 主語+ do/beWhere can he be now?他現(xiàn)在會在哪里呢？Can it be true?那會是真的嗎？⑵ 對此時此刻正在進行的動作的推測：can/could +主語+ be doingIt’s so Tom be reading?這么晚了，湯姆還在看書嗎？What can he be doing?他可能在做什么呢？⑶ 對過去發(fā)生的事情的推測：can/could +主語+have doneCan she have told a lie?她會不會說謊了？Where can she have gone?她會上哪兒去了呢？情態(tài)動詞的辨析need和dareNeed he go yesterday? 昨天他有去的必要嗎?I don’t think you need dare not go out alone at dare you say I’m unfair?She needs the work done before 。They may not be telling the 。2．否定句中：can/could not不可能，想必不會may/might not可能不⑴對當前行為、情況或狀態(tài)的推測：can/could not+動詞原形不可能，想必不會may/might not +動詞原形可能不He may not be busy 。You look very must have stayed up last ，你昨晚一定熬夜了。I must look funny in this 。The Greeks used to worship several ,希臘人崇奉好幾種神。Ought you to smoke so much? 你應該抽這樣多煙嗎？You ought to write to the 。You should study the article 。Every time she was in trouble, she would go to him for 。t smoke in the meeting room, will you?Won’t you drink some more coffee? 。s go fishing, shall we?，有“命令、允諾、警告、決心”等意思，用于第二、第三人稱陳述句。過去式為had to。語氣不肯定。主要用于否定句、疑問句或感嘆句中。第一篇：情態(tài)動詞的基本用法情態(tài)動詞的基本用法情態(tài)動詞的特點。Can I have a look at your new pen?Can(Could)you lend me a hand?、懷疑、不相信等態(tài)度。You may take whatever you told me that I might smoke in the （事實上）。have(has)to：have(has)got to 必須, 不得不。s a fine 39。Don39。Would you like another glass of beer?。s 。They should be home by ought to“應該”，口氣比should稍重。used to過去常常, 現(xiàn)在不復發(fā)生或存在。其中，might 和could并非過去時態(tài)，只是語氣較為委婉或可能性較小 ⑴ 對當前行為、情況或狀態(tài)的推測：must /may /might /could + do/beHe must/may/might/could be in the reading 。⑶ 對過去發(fā)生的事情的推測：must