【正文】 e?a?letter?to?his?parents?last?night.第三篇：一般過去時與現(xiàn)在完成時一般過去時 與 現(xiàn)在完成時▲側(cè)重點不同：現(xiàn)在完成時側(cè)重于對現(xiàn)在的影響或結(jié)果一般過去時側(cè)重于動作發(fā)生在過去時間▲時間狀語不同：現(xiàn)在完成時already,yet,just,never,everbeforefor+時間段，since+時間點// 一般過去時句子一般過去時時間段+ago,just now,yesterday,last week 等表過去的時間狀語▲基本結(jié)構(gòu)不同：一般過去時主語+ was/were//主語+ + have/has+ .第四篇：一般過去時和現(xiàn)在完成時一．一般將來時： _____________________________________The door bell is , I will answer the is busy will going to 表將來：(1)Basketball is my am going to be a basketball player someday.(2)Debbie is going to swim across the England channel tomorrow.(3)She is going to set out from the French coast at five o’(4)Look at the is going to be a storm.(5)These two groups of people are angry are going to conflict with each (6)He is staying in his cousin’s for a week.(7)I am leaving for London next ．_____________________在時間或條件狀語中的_____ 表將來(1)Tomorrow he will be watching her anxiously as she swims to England.(2)I will be meeting her at the station when she arrived tomorrow.(3)If you park your car in the wrong place, a traffic policeman will soon find it.(4)if he lets you go without a ticket, you will be very ．_____________ 在 _____________中表將來(1)The sports meeting takes place On October 18.(2)The train leaves at eight every morning from this ．現(xiàn)在完成時（have/has done）表示過去發(fā)生的動作對現(xiàn)在產(chǎn)生的結(jié)果和影響。?共同的時間狀語：this?morning,?tonight,?this?April,?now,?already,?recently,?lately?等。另外,在等引導(dǎo)的從句中,由于這些詞本身已經(jīng)表示出時間的先后, entered the room, turned on the light and sat (had)called him before left here.第二篇：比較一般過去時與現(xiàn)在完成時比較一般過去時與現(xiàn)在完成時1）一般過去時表示過去某時發(fā)生的動作或單純敘述過去的事情，強調(diào)動作；現(xiàn)在完成時為過去發(fā)生的，強調(diào)過去的事情對現(xiàn)在的影響，強調(diào)的是影響。I had wanted to see you, but I was too busy to get 兩種時態(tài)的判斷依據(jù)：凡表示過去發(fā)生或已經(jīng)完成且對現(xiàn)在造：凡表示過去發(fā)生或已經(jīng)完成且對現(xiàn)在造成影響或結(jié)果的動作；或過去已經(jīng)開始，一直持續(xù)到現(xiàn)在的動作或狀態(tài)，可以用現(xiàn)在完成時。此時多與 already/yet/still/before/just/never等時間adv及 by/at/before/until等引導(dǎo)詞的組或從句連用?？梢员硎緩倪^去從某一事可延續(xù)到現(xiàn)在(包括”現(xiàn)在”在內(nèi))。試比較下列兩句的時態(tài)：The train started just before we reached the train had gone when we arrived the ，常與過去完成時連用的時間狀語有 already , still , yet , just , ever , never , hardly , scarcely 以及由 by , before , since , for ,after , until , as soon as 等構(gòu)成的短語或從句。Our teacher told us that Columbus discovered(不用 had discovered)America in 1492 年發(fā)現(xiàn)美洲的。，以過去完成時代替直接引語中的一般過去時和現(xiàn)在完成時。一般過去時以現(xiàn)在時間為起點，表示過去發(fā)生的動作或存在的狀態(tài)。，用 and , then 或 but 等連接，按照動作發(fā)生的順序表達時，用一般過去時，表示過去發(fā)生的連續(xù)的動作。特別要注意該結(jié)構(gòu)省if 后的倒裝結(jié)構(gòu)。She had hardly sat down when she heard her name called by the monitor.= Hardly had she sat down when she heard her name called by the ，則第一個動作用過去完成時，第二個用一般過去時。They had wanted to help her but couldn’t get there in ，卻沒有及時趕到那里。、計劃或打算，用過去完成時。He has been in the League for three years.(在團內(nèi)的狀態(tài)可延續(xù))He has been a League member for three years.(是團員的狀態(tài)可持續(xù))He joined the League three years ago.(三年前入團，joined為短暫行為。）Who hasn39。一般過去時的時間狀語:yesterday, last week，…ago, in1980, in October, just now, 具體的時間狀語共同的時間狀語:this morning, tonight, this April, now, once，before, already