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as bought some cloth。但是,可用別的表達方式: 意為“我就來,媽媽!”請看: The train is leaving soon。 四、“be going to+動詞原形”與“will(shall)+動詞原形”結構的轉換“be going to+動詞原形”、表示打算、計劃要做的事;將來時“will(shall)+動詞原形”結構在書面語 ①瞬間動詞用于“一段時間+ago”的一般過去時的句型中; ②瞬間動詞可改成與之相對應的延續(xù)性動詞及短語,與一段時間連用;③瞬間動詞用于“It is+一段時間+since+一般過去時”的句型中,表示”自從??以來有??時間”的意思,主句一般用it is來代替It has been;④瞬間動詞用于“Sometime has passed since+一般過去時”的句型中。He joined the League two years ago。He has been in theLeague for two years。It is two years since he joined the League。Two years has passed since he joined the League。此短語可與進行時態(tài)轉換。Peter is working,but Mike is playing。如:I am ing,Mum!中,當主語為第一人稱時,常用助動詞shall。請看:We are going to visit the Great Wall next Sunday。表示將來的五種非時態(tài)方式“be+不定式”:表示命令、安排、傾向或必須、義務等。她扮演朱麗葉。你要做出必要的改變。如:The package is about to eunwrapped。“be going+不定式”:表示按計劃或安排打算去做某事,或表示有跡象表明要發(fā)生某事。我們打算今晚給她打電話。我姐姐今年夏天要生孩子。如:The students are leaving on Sunday。We’re having a party next week。 用一般現在時表示將來:表示按規(guī)定或時間預計要發(fā)生的事。我們明天放假。My brother was very ill, so I had to call the doctor in the middle of the this evening。must表示推測1) must用在肯定句中表示較有把握的推測,意為amp。一定amp。2) must表對現在的狀態(tài)或現在正發(fā)生的事情的推測時, must 后面通常接系動詞be 的原形或行為動詞的進行式。(對現在情況的推測判斷)He must be working in his office. 他一定在辦公室工作呢。He must stay there。3) must 表示對已發(fā)生的事情的推測時,must 要接完成式。4) must表示對過去某時正發(fā)生的事情的推測,must 后面要接不定式的完成進行式。 5) 否定推測用can’t。比較have to和must night.我弟弟病得很厲害,我只得半夜里把醫(yī)生請來。(主觀上要做這件事)2) have to有人稱、數、時態(tài)的變化,而must只有一種形式。He had to look after his sister yesterday。quot。quot。quot。quot。You mustn’t tell him about it. 你一定不要把這件事告訴他。May God bless you! He might be at home。只是可能性比may 小。quot。quot。典型例題Peter ___e with us tonight, but he isn’t very sure yet。比較can 和be able to1)can could 表示能力;可能 (過去時用could),只用于現在式和過去式(could)。They will be able to tell you the such + n. (pl。) such +n. (pl。2)只用be able toa. 位于助動詞后。c. 表示過去某時刻動作時。e. 表示成功地做了某事時,只能用was/were able to, 不能用could。= He managed to flee Europe before the war broke out。 Could I have the television on? Yes, you can. / No, you can’t。He couldn’t be a bad man.他不大可能是壞人。such 是形容詞,修飾名詞或名詞詞組,so是副詞,只能修飾形容詞或副詞。 so + adj. such + a(n) + n。so?that與such?that之間的轉換既為 so與such之間的轉換。它是動詞的一種非謂語形式,沒有人稱和數的變化,不能單獨作句子的謂語。quot。quot。動詞不定式具有兩大特點: 1.具有動詞的特點,因此,后面可以跟表語、賓語或狀語,構成動詞不定式短語。下面以近幾年全國部分省市的中考英語試題為例,對不定式的難點以及它在中考英語中的考查點,作 一簡要的總結和分析,供同學們學習時參考。It will _________ the workers over a year _________ _________ the flyover.(北京市海淀區(qū))4. It’s very nice _________ you to get me two tickets _________ the World Cup.A. for, of B. of, for C. to, for D. of, to(安徽省)Keys: 1. A 2. C 3. take, to, build 4. B[簡析]動詞不定式作主語時,可以直接放在謂語動詞前面的主語位置,也可以用先行詞it作形式主語,而將真正的主語(不定式)置于后面。句式(4)中常用hard, difficult, easy, important等形容詞,與介詞for搭配,表示不定式表示的動作、行為的性質。如果其后接形容詞補足語時,則可以用it作形式賓語,而把作真正賓語的不定式放到后面。后面可以接不定式作賓語補足語的動詞有:ask, teach, expect, tell, allow等。3. I’m sorry ______ that.A. hears B. hearing C. hear D. to hear (河北省)4. I’m sorry ______ you.A. trouble B. to trouble C. (河南省)3. He is not an easy man ______.A. get on B. to get on C. get on with D. to get on with (山東省)Key: 1. C 2. D 3. D [簡析]不定式作定語時,常放在被修飾的詞語之后,與被修飾的詞troubling D. troubled (吉林省)5. My mother was very glad ______ her old friend.A. to meet B. meet C. met D. meets (甘肅省)Keys: 3. D 4. B 5. A[簡析]amp。be +形容詞+ to do sthamp。結構中的不定式作狀語,常表示原因或方式。quot。quot。quot。quot。五、動詞不定式作定語1. Would you like something ______?A. drink B. drinking C. to drink D. drinks (湖北省)2. I have a lot of homework ______.A. do B. doing C. did D. to do 語為邏輯上的主謂關系或動賓關系。六、不帶to的動詞不定式 1. We saw him ______ the building and go upstairs.A. to enter B. enter C. entering D. entered (河南省)2. So much work usually makes them ______ very tired.A. to feel B. feels C. feeling D. feel (吉林省)3. Your father is