【正文】 to)表示“去某地了(說話時某人不在當地)”，常用于第三人稱，前者可與once ,never,several times等連用，后者則不能。如：It is two years since his father died.=His father has been dead for two 。(2)現在完成時常見兩種句型： ①主語＋have / has been＋for短語 ②It is＋一段時間＋ since從句 例如：He has been in the League for three is three years since he joined the 。He has been sleeping for ten hours．（譯文同上。How long have you known that？你知道這事多久了？ He’s been in hospital since his accident． 他從發(fā)生事故之后，一直在醫(yī)院里。I’ve been writing letters since breakfast．早飯后我一直在寫信。我想屋里沒有人現在完成進行時與現在完成時的區(qū)別(1)現在完成時可以表示一個已經完成的動作，而現在完成進行時則表示一個正在進行的動作：I have read the 。(陳述事實)I have been waiting for two 。They’ve been married for twenty 。助動詞說明該謂語是屬于現在時范圍。常被just、already、yet 等副詞修飾。這個動作可能剛停止，可能仍然在進行。t seen her for four 。如：yesterday,last Sunday,in1990,three years ago等。如：We have already finished our 。多用于否定或疑問句中，表示“曾經”或“從未“等。He has been there three times the last few 。How many times have you been there this year?今年你去過那里多少次？(2)現在完成時可以和帶有since或for等表示“一段時間”的狀語連用,表示動作或狀態(tài)從某一時刻開始，一直持續(xù)到現在。現歸納總結一下由非延續(xù)性動詞到延續(xù)性動詞的轉換：arrive→be here begin(start)→be ondie →be dead e back→be backleave →be away fall ill(sick,asleep)→be ill(sick,asleep)get up→be up go out →be outfinish →be over put on →wear 或be onopen →be open join →be in或 be a member of…close →be closed go to school→be a studentborrow →keep buy →havecatch(a cold)→ have(a cold)get to know →knowbegin to study→study e to work→work等如：He has been a soldier for three ?，F在完成時和一般過去時都表示在過去完成的動作。(現在還未找到)I lost my new book 。(2)如單純表示一段時間，或強調一段時間，雖有since一詞，也不必用完成時。t left here since ，我一直沒有離開過這兒。good changed。study。finished 。have finished 。t they they 39。As we all know，the environmemt around us is getting worse and some places，we can39。假如你是李華，準備以“What Can We Do for the Environment” 為題，寫一篇保護環(huán)境的英語演講稿。離開教室應關燈；(4)。The first thing we can do is to use cloth bags instead of plastic bags when we go helps to protect the second thing we can do is to reuse the old textbooks as possible as we should also never forget to turn off the lights when we leave the classrooms in order to save 39。提示詞； water，the source of life，protect drinking water，stop polluting，make full use of it。Save is the source of water，no it39。t forget to turn off lights or other electric machines when we finish working。與父母相處的話題類作文難度較大，掌握基本句式，背誦范文非常必要。m afraid I39。m annoyed(煩惱)。s I think you should listen to your opinions are different from your mother39。I hope what I say here can help you a lot。：健康一直是人們關注的問題我校要舉行以“關愛健康”為題的主題班會，請根據下表內容談談你的看法，寫一篇80字左右的演講槁。Then you should pay attention to your diet or 39。 moment ago(剛才)，yesterday morning，last night/ week，the day before yesterday(前天)，just now(剛才)等。She entered the room, picked up a magazine and looked through it ，拿起一本雜志，認真地翻閱了起來。b)在口語中，一般過去時往往顯示委婉客氣Might I e and see you tonight?我想今晚來看你，好嗎？現在完成時的用法:1)表示過去發(fā)生或已完成的某個動作對現在產生的影響或結果，強調的是這個影響或結果，一般不與過去時間連用，常同already, just, yet等狀語連用例：I have just turned off the 。3)表示從過去某一時間到說話時這段時間中反復發(fā)生的動作或多次動作的總和，常同頻度副詞always, often, seldom, never等連用I have been to the Great Wall 過去完成時用法：。例如：When Jack arrived, he learned Mary had been away for almost an ，他得知瑪麗已經離開快一個小時了。1.“一般過去時”所關心的是過去之事,與現在無聯系，常帶有表示過去某個時間的狀語；現在完成時所關心的是過去發(fā)生的事，對現在產生某種結果，強調過去與現在的聯系。t you buy one? _______(fall)into the river only a moment ago when I washed my I39。They have lived here for a long time6一般過去時比現在完成時更能表達事情的結果John has taught math for twenty John taught math for twenty ，他可能退休了，換工作了，或者去世了。，而過去完成時則表示過去某一動作或時間之前發(fā)生的動作或存在的狀態(tài)。clock。比較：I have learned 1000 English words so 1000 個英語單詞。一、用于指人以外的一切生物、無生命的東西和事情。s Lucy39。s grown in the southeast of China．什么地方種植茶？中國東南部種植茶。t it？看這雨！雨很大，對嗎？3．代替上文提到過的整個事情。這太危險了！It was hard work，but they really enjoyed it．摘蘋果是艱苦活，可他們都樂意去干（它）。（根據上下句，“it was”也可不譯出來。如：—Is it your sister，Kate？（那舊照片上的 baby）是你姐姐凱特吧？—No！不是。3．指代性別不詳的嬰幼兒或在不計較性別時，也可用it來指人。注意：看到這樣的句子（或聽到這樣的話）時，要想一想，不要一看到it就把它譯成“它”。re right．It39。如：—What time is it？幾點鐘？—It39。特別注意it用于表示時間時還常見于以下兩個句型中：（1）It39。s time for supper／to have supper．是吃晚飯的時候了。譯為“自從??以來已過了??（時間）”。s three years since he came here．＝It has been three years since he came here．＝He has been here for three years．他到這里已經三年了。s walk from my home to the school．從我家到學校步行得花半小時時間。3．表示自然現象。英語中常常見到某個句子以it開頭，it與其后面的動詞不定式短語、動名詞短語、名詞性從句等相呼應，以表達一個完整的意義。如：It is interesting to play with snow in winter．冬季里玩雪是很有趣的。s very kind of you to say so．你這樣說真是太好了。It must be great fun to fly to the moon in a spaceship．乘宇宙飛船飛往月球一定很有趣。s bad playing in the street．在街上玩是沒好處的。s true that he may fall behind the other students．他真的可能落后于其他同學。如：It39。6．It ＋cost／costs ＋sb．＋some money ＋to do sth．譯為“某人花多少錢做某事”。如：It seems that he is ill．＝He seems to be ill．看起來他好像病了。該句型中賓語補足語可由形容詞、名詞等充當。[原題再現]Don39。that 。如：It seems as if we should finish it tomorrow.【練習】（1）There is a photo on the the photo of Lei 39。[原題再現]The news that they failed their driving test discouraged him, ______? 39。[原題再現]Why don39。[原題再現]Few pleasures can equal ________ of a cool drink on a hot 答案: C高考“it”的用法英語題歷屆高考英語單項選擇題精選（一）“it”的用法 it during the Second World War_____ he died? (88) ____ necessary to plete the design before National Day?(89) dont think ____ possible to master a foreign language without much memory (91) ______ matter if he can’t finish the job on time?(91) was not _____ she took off her glasses _____ I realized she was a famous film , , that , , then(92) was disappointed with the had expected ______ to be much (93) was not until 1920 ______ regular radio broadcasts (94) a fact that English is being accepted as an international (95) was only when I reread this poems recently _____ I began to appreciate their (97) hate _____ when people talk with their mouths (98) is the ability to do the job _____ matters not where you e from or what you (2000)KEYS:15 ACDDB610 DCDBA11 B ’