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1、Grammar,課標人教實驗版 高一 Module 3 Unit 1,情態(tài)動詞用法,Find the sentences in the reading passage that use modal verbs,1. Most ancient festivals would celebrate the end of cold weather. 2. Sometimes celebrate would be held after hunters had caught animals. 3. At that time people would starve if food was difficult
2、 to find 4. Some festivals are held to honour the dead or to satisfy the ancestors, who might return either to help or to do harm. 5. If the neighbours do not give any sweets, the children might play a trick on them.,6. People should go to clean graves and light incense in memory of their ancestors.
3、 7.Harvestand Thanksgiving festivals can be very happy events. 8.Some peoplemight win awards for their farm produce. 9. At the Spring Festival inChina, people may give children lucky money in red paper. 10.These carnivals might include parades, dancing in the streets,情態(tài)動詞有一定的意義，但沒有人稱和數(shù)的變化，不能獨立使用，它和后
4、面的動詞構成謂語 只作情態(tài)動詞的 can/could, may/might, ought to， must 可情態(tài)可實義的 need, dare/dared 可情態(tài)可助動詞的 shall/should, will/would 相當于情態(tài)動詞的 have to, used to,1) can的主要用法是： A. _： eg. The girl can dance very well. B. _： eg. Can the news be true? C. _: eg. Can I sit here?,can 和could：,表示能力,表示推測可能性,表請求或允許,（多用于疑問否定句中）,其他用法：
5、表示請求，命令，驚訝，不相信等。 Can you help me to lift it, please? If you wont keep quiet, you can get out! You cant be serious!,2) could的主要用法是： A. _ _: eg. We all knew that the young man couldnt be a doctor.,could 是can的過去式, 表示過去 的能力,許可和推測,B. could可代替can表示請求, 語氣委婉,eg. Could you lend me your bike? Could I use your
6、 bike?-Yes， you can,may 和might ： may 常用來表示： A. _ eg. May I come in ? Yes, please. B. _,表示請求、允許;比can正式:,eg. -I believe the man is from England. -But I may be wrong. The guest may arrive this afternoon,表示猜測,答語避免使用may，以免顯得 太嚴肅或太不客氣,C. _ eg. May you succeed! May you have a good journey!,表示祝愿;語氣較正式:,will
7、和would：,1. I will tell you something important. 我將要告訴你一些重要的事,Will you tell her that Im here? 請您告訴她說我在這兒，好嗎?,（助動詞）,（情態(tài)動詞）,will是助動詞或是情態(tài)動詞 用于構成將來時是助動詞。 用于表“意志/決心/請求”是情態(tài)動詞。 would亦同理，只是表過去。,2. _ If you want help, let me know, will you? 如果你需要幫助, 讓我知道, 好嗎? Would you type this, please? 請打印這個，好嗎？ Wont you si
8、t down? 請坐下，好嗎？,疑問句中用于第二人稱，提出請求,表委婉不是表過去,3. _ Would you help us, please? 請您幫助我們，好嗎？ Id go there with you. 我要和你一塊到那兒去。 Teacher wouldnt allow it. 老師不會允許這件事。,（表請求）,would比will客氣委婉。,（表意愿）,（表許可）,shall和should：,1. Perhaps I shall pay a visit to England this winter.可能今年冬天我會去英國觀光。 （構成一般將來時, 助動詞）,shall用于構成將來時是
9、助動詞。,（表 “決心”，情態(tài)動詞）,Shall we go by train, Mom? 媽媽，我們乘火車去好嗎？ Shall he come in?要他進來嗎？,2.用于征求意見,是情態(tài)動詞,一般用于第一 人稱和第三人稱,（表 “決心”，情態(tài)動詞）,Dont worry, you shall get the book. Nothing shall stop us.,2.用于表允諾，決心，警告，命令,或 頒布法令規(guī)定等。用于二三人稱。,3. eg: You should keep your promise. 你應該遵守諾言。 You should call the police. *表示“按
10、理說”。 Its 8 oclock now, he should be here at any moment. *表埋怨，用于“Shouldnt ?” Shouldnt you be doing your homework now?,should表示義務/建議/勸告，意為 “應該”。,must 的主要用法：,1. _ eg: We must all die. 人總要死的。 2. _ eg: You must get up early. 你必須早起來。,表示必然性。,表示強制/義務。,如：We mustnt waste our time. - May I take this magazine out? - No, you mustnt.,注意: must not : “禁止”。,must 用于一般疑問句的時候， 肯定回答用yes, please 或者 Im afraid so, 其否定回答用 neednt 或者 dont have to,可能性從大到小: must. can could may might,完成課本P5第二題,
高一英語情態(tài)動詞的用法(新人教版).ppt
