【正文】 Seeing all of the children already seated, he said,“Since everyone is here, let’s start.”4． 目的狀語(yǔ)從句引導(dǎo)目的狀語(yǔ)從句的主要連詞有: so that（以便）, in order that（為了）, for fear that（以便）,目的狀語(yǔ)從句的謂語(yǔ)動(dòng)詞常與情態(tài)動(dòng)詞can, could, may, might, should連用Let’s take the front seats (so) that we may see more ，這樣我們看得更清楚些。）as/since表示已經(jīng)知道的原因時(shí)用as或since,即某種原因在說(shuō)話人看來(lái)已經(jīng)很明顯，或已為聽話人所熟悉，因此它是句中不很重要的部分。如果不是因果關(guān)系，而是對(duì)前面主句的內(nèi)容加以解釋或推斷時(shí)，只能用for。下列情況下只能使用because:①在回答why的問(wèn)句時(shí)；②在用于強(qiáng)調(diào)句型時(shí)；③被not所否定時(shí)。Considering that they are just beginners, they are doing quite a good ，他們干得算很不錯(cuò)的了。(because不能與 so連用)He couldn’t have seen me, because I was not ，因?yàn)楫?dāng)時(shí)我不在那兒。He would keep in touch with us wherever he ，總是與我們保持聯(lián)系。Where there is a will, there is a ，事竟成。當(dāng)not until位于句首時(shí)，主句中的主語(yǔ)、謂語(yǔ)要使用倒裝語(yǔ)序：Not until she came back did I leave. = I didn’t leave until she came back.在強(qiáng)調(diào)句型中一般用until，不用till。④until引導(dǎo)的從句可以放在主句之前或主句之后，但till從句一般不放在句首。如：I didn’t leave until / till / before she came ，我才離開的。如：He waited until / till we finished our 。Things went well until / till one night an accident I knew nothing about it until / till he told me. 他告訴我了我才知道。(ever 放在since之前是用來(lái)表示說(shuō)話者強(qiáng)調(diào)主句動(dòng)作或狀態(tài)持續(xù)時(shí)間長(zhǎng))The big clock which used to strike the hours day and night was damaged during the war and has been silent ever since.( ever since可以放在句末， since則不能)這只一向日夜不停打點(diǎn)報(bào)時(shí)的大鐘在戰(zhàn)爭(zhēng)中損壞了，從此就一直不響了。(4）表示持續(xù)性或瞬間性 主要連詞有：since（自從）,ever since（自從）,until（直到……才/為止,till（直到……才/為止）常用句型: It is /was…since… It is just a week since we arrived 。Whenever we met with difficulties, they came to help Each time he came to town he would visit our ，總要來(lái)看看我們的學(xué)校。(注意before在漢語(yǔ)中的譯義)（3）表示習(xí)慣性、經(jīng)常性，即從句描述的不是一次性動(dòng)作，而是經(jīng)常發(fā)生的習(xí)慣性動(dòng)作。It isn’t/ wasn’t/won’t be … before… 沒(méi)有過(guò)多久就…It was not long before I forgot it all. 我沒(méi)有過(guò)多久就全忘了。（從句的動(dòng)作發(fā)生在主句的動(dòng)作之前，所以從句用了過(guò)去完成時(shí)）He had learned English for three years before he went to London. 他去倫敦之前已學(xué)了三年英語(yǔ)。主要連詞有：after（在……之后，before（在……之前）, when(=after)等。當(dāng)主從句之間表示轉(zhuǎn)折或?qū)Ρ汝P(guān)系時(shí)，多用while, 不用as或whenPlease don’t talk so loud while others are working.He fell asleep while/when reading. Strike while the iron is hot.(用as或when不可，這里的while意思是“趁……”)She thought I was talking about her daughter, while in fact, I was talking about my ，而事實(shí)上，我在談?wù)撐业呐畠骸Ｖ骶渲械膭?dòng)作或事情在從句中的動(dòng)作或事情的進(jìn)展過(guò)程中發(fā)生，從句中的動(dòng)詞一般要用延續(xù)性動(dòng)詞。They had just arrived home when it began to，這時(shí)天就開始下雨了。此外，when還含有“at that moment”的意思（= and then），引起的句子不能放在句首，也不能用as, while來(lái)替換。when(at or during the time that )既可以表示在某一點(diǎn)的時(shí)候，又可表示在某一段時(shí)間內(nèi)，主句與從句的動(dòng)作或事情可以同時(shí)發(fā)生也可以先后發(fā)生。如果從句和主句要表示一個(gè)人的兩個(gè)動(dòng)作交替進(jìn)行或同時(shí)完成時(shí)，則多用as，可譯為“一邊......，一邊......”She came up as I was cooking.(同時(shí))The runners started as the gun went off.(幾乎同時(shí))He looked behind from to time as he went.他一邊走，一邊不時(shí)地往后看。He had hardly finished when someone rose to refute his She had scarcely fallen asleep when a knock at the door awakened ，忽然敲門的聲音把她驚醒。She rushed into the room immediately / the moment she heard the He left me a good impression the first time I met ，他給我留下了好印象。= We had hardly got into the country when it began to rain.No sooner had he e home than she started plaining. 他一到家她就開始抱怨。Once you see him, you will never forget him. 你一旦見過(guò)他，就不會(huì)忘了他的。As / When I came home, I met an old schoolmate of 。其連詞有：when （當(dāng)……的時(shí)候）, while（當(dāng)……的時(shí)候）, as（當(dāng)……的時(shí)候）, once（一旦……）as soon as（一……就……）, the time（當(dāng)……的時(shí)刻）, the moment（當(dāng)……的時(shí)刻）, by the time（到……時(shí)候?yàn)橹梗? next time(下次), the first time(第一次……的時(shí)候), the last time(上次……的時(shí)候)，immediately（一……就……）, instantly（一……就……）,directly（一……就……）以下關(guān)聯(lián)詞引起的句子中，前面常用過(guò)去完成時(shí)，后面用一般過(guò)去時(shí)hardly /scarcely…when…（剛……就……）, no sooner…than…（剛……就……） Strike while the iron is 。狀語(yǔ)從句一般分為九大類時(shí)間狀語(yǔ)從句 地點(diǎn)狀語(yǔ)從句 原因狀語(yǔ)從句 目的狀語(yǔ)從句 結(jié)果狀語(yǔ)從句 條件狀語(yǔ)從句 方式狀語(yǔ)從句 比較狀語(yǔ)從句 讓步狀語(yǔ)從句二．狀語(yǔ)從句的分類： 1．時(shí)間狀語(yǔ)從句： 在時(shí)間狀語(yǔ)從句中，要注意時(shí)態(tài)一致，一般情況下主句是將來(lái)時(shí)的時(shí)候，從句要用一般現(xiàn)在時(shí)。2011年高考英語(yǔ)二輪專題復(fù)習(xí)專題十二 狀語(yǔ)從句（一）一．狀語(yǔ)從句的定義：在復(fù)合句中由從句表示的狀語(yǔ)稱作狀語(yǔ)從句，它可以用來(lái)修飾謂語(yǔ)（包括非謂語(yǔ)動(dòng)詞）、定語(yǔ)或狀語(yǔ)，或是整個(gè)句子。狀語(yǔ)從句通常由一個(gè)連詞引起，也可以由一個(gè)起連詞作用的詞組引起，有時(shí)甚至不需要連詞直接和主句連接起來(lái)?？梢砸龑?dǎo)時(shí)間狀語(yǔ)從句的連詞很多，根據(jù)意義和主從句之間的時(shí)間關(guān)系，又可分類如下：（1）表示同時(shí)性，即主從句的謂語(yǔ)動(dòng)作同時(shí)發(fā)生或幾乎同時(shí)發(fā)生。While I am washing the floor, you can be cleaning the windows.（while含有對(duì)比的意思）我洗地板的時(shí)候，你可以擦窗戶。I’ll ring you up as soon as I get an answer from 。Hardly had we got into the country when it began to rain. 我們一到鄉(xiāng)下就開始下雨了。= He had no sooner e home than she started plaining.He made for the door directly he heard the knock. 他一聽到敲門聲就向門口走去。He had no sooner arrived there than he fell 。 ★as、when、while用法一覽表類別作 用例 句asas表示“當(dāng)……的時(shí)候”，往往和when/ while通用，但它著重強(qiáng)調(diào)主句與從句的動(dòng)作或事情同時(shí)或幾乎同時(shí)發(fā)生。As time goes on, it’s getting warmer and warmer..隨著時(shí)間的推移，天氣變得越來(lái)越暖了。如果表示從句的動(dòng)作在主句的動(dòng)作“之前”或“之后”發(fā)生時(shí)，多用when（=after）, 不用as或while。It was raining when we arrived.(指時(shí)間點(diǎn))When we were at school, we went to the library every day.(在一段時(shí)間內(nèi))We were watching TV when suddenly the lights went ，這時(shí)燈突然滅了。whilewhile意思是“當(dāng)……的時(shí)候”或“在某一段時(shí)間里”。在when表示a period of time時(shí)，兩者可以互換。（2）表示先時(shí)或后時(shí)，即主句的謂語(yǔ)動(dòng)作發(fā)生在從句之前或之后。如：After / When the children had gone to bed, she began to prepare her lessons. 孩子睡覺(jué)了以后她開始備課。（主句的動(dòng)作發(fā)生在從句的動(dòng)作之前，所以主句用了過(guò)去完成時(shí)） 常用句型：It is/was/will be …before… 要過(guò)多久才…It will be another five days before we finish this task. 還要再過(guò)5天我們才能完成這個(gè)任務(wù)。He ran off before I could stop him.（主句和從句的動(dòng)作幾乎同時(shí)發(fā)生，時(shí)態(tài)一致）我還沒(méi)來(lái)得及阻止他他就跑掉了。主要連詞有every time（每次）, each time（每次）, whenever（每當(dāng)）等。Ever