時態(tài)專項,歡迎光臨指導,Steps: Revise sth about English tenses Some explanation about the difficulties More exercise to be given if possible Ask ss to do some exercises,Warm up:,一、結構：1、be式動詞： is am are 2、實義動詞：難點:當主語為第三人稱單數(shù)時，V+ S（注意動詞+s的方法）疑問找助動詞：do, does否定找助動詞：dont ,doesnt,一般現(xiàn)在時,在if,unless,before, as soon as,when等引導的狀從中；,eg:I will tell you if he _ (come) back tomorrow. We shall start when the rain _ (stop). She will call Jenny as soon as she _ (return).,在賓從中陳述客觀事實或客觀真理時；,eg:Mr Li told us yesterday that the earth_ (move) around the sun.,一 、結構： is / am /are + doing二、注意（現(xiàn)在分詞的構成） 1、直接+ing 2、去掉e,+ ing 3、雙寫+ing,現(xiàn)在進行時,難點:, 表狀態(tài)的動詞,不用于進行時態(tài);Eg: We _ (have) a computer. We _ (have) a meeting now.,二、結構：1、be 式動詞： was were 2、實義動詞：使用動詞的過去式（分為規(guī)則與不規(guī)則）疑問否定：did, didt,一般過去時,難點:,注意不規(guī)則動詞拼寫；Eg: Han Mei _ (buy) this new coat yesterday. Who _ (teach) you last term,Mary?,(2) 通過句子的其他成分來判斷用一般過去式；Eg: She often _（go) to see her grandma when she was in Shanghai. Tom always _ (come) late to school when he was young.,四、結構： was / were + doing注意過去進行時與一般過去時的區(qū)別：,過去進行時,翻譯：（1）昨天早上8點鐘我在打掃房間。 （2）當我進入房間時，湯姆正在給他的爸爸寫信。 （3）上星期天的這個時候你在干什么？ （4）Sue在整理床鋪時，Mary正在看電視。（while）,五、現(xiàn)在完成時1、have/ has + done（動作發(fā)生在過去對現(xiàn)在造成的結果或影響）2、常見的時間狀語或句型already,just,ever,never,yet現(xiàn)在完成時 +since + 過去的時間現(xiàn)在完成時+since+ 一般過去時句子現(xiàn)在完成時+ during(in)+the last現(xiàn)在完成時 + for + 時間段,現(xiàn)在完成時,現(xiàn)在完成時中，終止（短暫）性動作的動詞不用于For + 多長時間（或how long )的句型中。如go,come,begin,start,leave,open,close,sell,buy,take,bring,die等。,eg: She_ (left) Beijing for three days. The movie _ (begin) for half an hour. The old man _(die) since two years ago.,3、難點：,have /has + gone to 與have / has been to區(qū)別； eg: - Where is Tom,David? - He_the school library. I _ the new cinema for three times.,現(xiàn)在完成時與一般過去時的區(qū)別：現(xiàn)在完成時指動作發(fā)生在過去對現(xiàn)在造成的結果或影響;一般過去時純粹描述在過去的時間里所發(fā)生的事情,與現(xiàn)在無關. eg: I saw that film last night. I have seen that film.,六、：過去的過去在過去某時間（或動作）看來已經(jīng)完成了的動作 ：had + done 常見的句型：過去完成時 + by the time 過去完成時 + by the end of+ 過去的時間過去完成時+ when + 一般過去時的句子過去完成時+ before + 一般過去時的句子After + 過去完成時 ，+ 一般過去時的句子 一般過去時（主句）+ 過去完成時（賓語從句）,過去完成時,七、一般將來時：在現(xiàn)在看來將要 發(fā)生的動作。1、will + do 2、be + going to do 常用的時間狀語：tomorrow, next , in (以后多長時間）3、go,come,leave ,have的進行時態(tài)可以表示一個將來的動作?？键c：主句為一般將來時，從句（條件）用一般現(xiàn)在時。We will not go out if it snows tomorrow.I will give the letter to her as soon as she comes back tomorrow.,一般將來時,八、過去將來時：在過去某時間（或某動作）看來將要發(fā)生的動作。1、would + do 2、was / were + going to do 過去將來時常用于賓語從句中 I heart that they would help us . He said that he was going to play football. I didnt know if they would come. We didnt know what they were going to do next Sunday.,以動詞write 為例寫出下列句子. 她每周寫一封英文信。 她上星期寫了一封英文信。