1.一般現(xiàn)在時(shí) （do/does; is/am/are）①表示現(xiàn)在的情況、狀態(tài)或特征例：He is a student.他是一個(gè)學(xué)生②表示經(jīng)常性、習(xí)慣性動(dòng)作例：He always helps others.他總是幫助別人③客觀事實(shí)和普遍真理例：The earth moves the sun.地球繞著太陽轉(zhuǎn)④表示一個(gè)按規(guī)定、計(jì)劃或安排要發(fā)生的動(dòng)作僅限于某些表示“來、去、動(dòng) 、停、開始、結(jié)束、繼續(xù)”等的動(dòng)詞，可以與表示未來時(shí)間的狀語搭配使用 常見的用法是：飛機(jī)、火車、輪船、汽車等定期定點(diǎn)運(yùn)行的交通方式?例：The next train leaves at 3 o'clock this afternoon.下一趟火車今天下午3點(diǎn)開車⑤在時(shí)間、條件和讓步狀語從句中經(jīng)常用一般現(xiàn)在（有時(shí)也用現(xiàn)在完成時(shí)）表示將的來事情即：主將從現(xiàn)原則）例：I will call you as soon as I arrive at the airport.我一到機(jī)場就會(huì)給你打電話When you have finished the report, I will have waited for about 3 hours.等你完成這份報(bào)告的時(shí)候，我就已經(jīng)等了將近3個(gè)小時(shí)了。

2. 現(xiàn)在進(jìn)行時(shí)(am/is/are doing)①表示此時(shí)此刻正在發(fā)生的事情例：He is listning to the music now.他現(xiàn)在正在聽音樂②表示目前一段時(shí)間內(nèi)一直在做的事情，但不一定此時(shí)此刻正在做例：I am studying computer this term.這個(gè)學(xué)期我一直在學(xué)習(xí)計(jì)算機(jī)③現(xiàn)在進(jìn)行時(shí)可以表示將來的含義瞬時(shí)動(dòng)詞的進(jìn)行一定表將來例：I am leaving.我要離開了持續(xù)動(dòng)詞的進(jìn)行只有有將來的時(shí)間狀語或有將來語境中才表將來例：I am travelling next month.下個(gè)月我要去旅行④現(xiàn)在進(jìn)行時(shí)與頻度副詞連用，表示說話者或褒義或貶義的感情色彩例：He is always helping others.他總是幫助別人褒義）3. 現(xiàn)在完成時(shí)(have/has done)①表示動(dòng)作到現(xiàn)在為止已經(jīng)完成或剛剛完成，強(qiáng)調(diào)對現(xiàn)在產(chǎn)生的影響?例：I bought a new house, but I haven't sold my old one yet, so at the moment I have two houses.我買了一所新房子，但是還沒有賣掉舊的，所以現(xiàn)在我又兩所房子。

②表示從過去某時(shí)刻開始，持續(xù)到現(xiàn)在的動(dòng)作或情況，并且有可能會(huì)繼續(xù)延續(xù)下去此時(shí)經(jīng)常用延續(xù)性動(dòng)詞時(shí)間狀語常用since加一個(gè)過去的時(shí)間點(diǎn)，或for加一段時(shí)間，或by加一個(gè)現(xiàn)在時(shí)間?例：Great as Newton was, many of his ideas have been challenged today and are being modified by the work of scientists of our time.雖然牛頓是個(gè)偉大的人物，但他的許多見解直到今天還在受到挑戰(zhàn)，并且被現(xiàn)代科學(xué)家的工作所修正4. 現(xiàn)在完成進(jìn)行時(shí)(have/has been doing)表示某一動(dòng)作開始于過去某一時(shí)間，延續(xù)或重復(fù)地出現(xiàn)至今，或?qū)⒗^續(xù)延續(xù)至將來?例：We have been working on this project for over a month now.到目前為止，我們一直在處理那個(gè)項(xiàng)目，已經(jīng)花了一個(gè)多月時(shí)間了5. 一般過去時(shí) (did; was/were)①表示過去某個(gè)時(shí)間發(fā)生的動(dòng)作或情況例：I bought some fruits yesterday.我昨天買了一些水果。

②表示過去習(xí)慣性動(dòng)作例：When I was a boy，I often swam in that river.would/used to do：表示過去常常......例：The old man would sit on a bench in the quiet park and look at others for hours without doing anything or talking to anybody.老人過去常常坐在寧靜的公園里的一條長椅上，看著其他的人，一坐就是數(shù)個(gè)小時(shí)，什么也不干，也不和任何人交談?He used to visit his mother once a week.他以前總是每周看望一次他的母親6. 過去完成時(shí)(had done)表示在過去的某個(gè)時(shí)間或動(dòng)作以前已經(jīng)發(fā)生的動(dòng)作或已經(jīng)存在的狀態(tài)就是我們常說的"過去的過去"?Until then, his family?hadn't heard?from him for six months.?到那時(shí)為止，他家里已經(jīng)有六個(gè)月沒得到他的消息了7. 過去將來時(shí)(would do)表示從過去的某個(gè)時(shí)間看將要發(fā)生的事。

?例：I said on Thursday I should see my friend the next day.我星期四說我將于第二天拜訪我的朋友8. 過去進(jìn)行時(shí)(was/ were doing)①表示在過去具體的時(shí)間正在發(fā)生的動(dòng)作?例：Mary was listening to light music 10 minutes ago.10分鐘前，瑪麗正在聽輕音樂?②表示過去某個(gè)時(shí)間段內(nèi)一直在發(fā)生的事情例：I was travelling in London last summer vacation.去年暑假我在倫敦旅行③過去進(jìn)行時(shí)可以表示過去將來的含義瞬時(shí)動(dòng)詞的過去進(jìn)行時(shí)一定表示過去將來的含義例：Then she said she was leaving.然后她說她要離開了持續(xù)動(dòng)詞的過去進(jìn)行時(shí)只有在有過去將來的時(shí)間狀語或過去將來的語境下才能表示過去將來例：She said that she was travelling the next day.她說她第二天要去旅行④過去進(jìn)行時(shí)和頻度副詞連用可以表示說話者或褒義或貶義的感情色彩9. 一般將來時(shí)（1）will do①表示主語主觀意愿的將來。

例：I will send her a glass hand-made craft as her birthday gift.我將送給她一個(gè)玻璃的手工制品，作為給她的生日禮物?②表示客觀將來例：Fish will die without water.離開水，魚會(huì)死③表示臨時(shí)決定例：——Mary has been ill for a week.——Oh，I didn't know. I will go and see her.?（2）am/is/are going to do①表示計(jì)劃、打算做某事?例：This is just what I am going to say.這正是我想說的②表示根據(jù)某種跡象看，很可能或即將發(fā)生的事情，表推測例：Look at the dark clouds in the sky. It's going to rain.看天上的烏云，要下雨了3）am/is/are about to do表示“即將、正要”時(shí)，可用強(qiáng)調(diào)近期內(nèi)或馬上要做的事?例：Don't worry, I am about to make a close examination on you.別擔(dān)心，我馬上就給你做一次仔細(xì)的檢查。

4）be to do①表示“按計(jì)劃、安排即將發(fā)生某事或打算做某事”?例：She is to be seen in the lab on Monday.星期一你準(zhǔn)會(huì)在實(shí)驗(yàn)室見到她②該做或不該做的事情（語氣上接近于should, must, ought to, have to），表示一種命令、規(guī)勸性語氣?例：You are to go to bed and keep quiet, kids. Our guests are arriving in less than 5 minutes.孩子們，你們必須 上床睡覺，不準(zhǔn)吵鬧我們的客人5分鐘之內(nèi)就要到了10. 將來進(jìn)行時(shí)(will be doing)強(qiáng)調(diào)在將來的某個(gè)具體時(shí)間正在發(fā)生的動(dòng)作或事情?例：Don't worry, you won't miss her. She will be wearing a red T-shirt and a white skirt at that time.別擔(dān)心，你不會(huì)認(rèn)不出她的她到時(shí)會(huì)穿一件紅色的T恤衫和一條白色的短裙11. 將來完成時(shí)(will have done)表示從將來的某一時(shí)間開始、延續(xù)到另一個(gè)將來時(shí)間的動(dòng)作或狀態(tài)，或是在某個(gè)將來時(shí)間完成，但對其后的另一個(gè)將來時(shí)間有影響的動(dòng)作或狀態(tài)。

就好象把現(xiàn)在完成時(shí)平移到時(shí)間軸的將來時(shí)時(shí)段一樣例：The conference will have lasted a full week by the time it ends.會(huì)議從開始到結(jié)束將持續(xù)整整一個(gè)星期12.將來完成進(jìn)行時(shí)：(will have been doing)例：By the end of next month, the project will have been being worked for 3 years.到下個(gè)月底為止，這項(xiàng)工程就已經(jīng)不停地進(jìn)行了3年了13.過去完成進(jìn)行時(shí)：had been doing例：The old clock had been being taken apart of and fixed up again for several times by my 10-year old son before I came back home.我回到家之前，我10歲大的兒子已經(jīng)把這個(gè)舊鐘表拆卸并重新組裝了好幾回了14.過去將來進(jìn)行時(shí)：( would be doing )例：The government promised that a new highway would be being built next July.政府承諾說第二年7月將有一條新的高速公路正在修建。

15.過去將來完成時(shí)：(would have done)例：I believed by the end of that year an advanced version of that software would have been developed, but I was wrong.我堅(jiān)信到那年年底為止，那個(gè)軟件的新版本將被開發(fā)出來但是我錯(cuò)了16.過去將來完成進(jìn)行時(shí)：(would have been doing)例：They said that by the end of the following month, the project would have been being worked for 3 years.他們說到第二個(gè)月底為止，這項(xiàng)工程就已經(jīng)不停地進(jìn)行了3年了。