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1、精選優(yōu)質(zhì)文檔-傾情為你奉上高中英語狀語從句講解匯總 原因從句 除了下面A2，A3中所示各種類型外，這兩種從句均可由as或because來引導(dǎo)。但是用as引導(dǎo)原因從句較為穩(wěn)妥（參見A）；用because引導(dǎo)結(jié)果原因從句較為穩(wěn)妥（參見B）。 A 原因從句 1 由asbecausesince 引導(dǎo)的原因從句： We camped there asbecausesince it was too dark to go on 我們?cè)谀抢锫端奘且驗(yàn)樘焯?，不能再繼續(xù)往前走了。 AsBecauseSince it was too dark to go on，we camped there 因?yàn)樘焯诓荒茉倮^續(xù)

2、往前走，我們就在那兒露宿了。 2 in view of the fact that可用assinceseeing that來表示，但不能用because： AsSinceSeeing that you are here，you may as well give me a hand 既然你在這兒，你就幫我個(gè)忙吧。 AsSinceSeeing that Tom knows French，hed better do the talking 既然湯姆懂法語，最好讓他來談。 3 在assinceseeing that意指以前共知的或共知的陳述時(shí)，可用if來代替： AsSinceSeeing thatIf

3、 you dont like Bill，why did you invite him？ 既然如果你不喜歡比爾，你為什么邀請(qǐng)了他？ 注意：if so的用法： I hope Bill wont come If so（If you hope he wont come），why did you invite him？ 我希望比爾別來。 如果這樣（=如果你希望他不來），你為什么邀請(qǐng)了他？ 關(guān)于ifsonot，參見第347節(jié)。 B 結(jié)果從句 由because或as引導(dǎo)： The fuse blew because we had overloaded the circuit 保險(xiǎn)絲燒斷了，因?yàn)槲覀兪咕€路超載

4、了。 He was angry because we were late 他生氣是因?yàn)槲覀儊硗砹恕?As it froze hard that night there was ice everywhere next day 因?yàn)槟翘焱砩侠涞脜柡?，所以第二天到處都是冰?As the soup was very salty we were thirsty afterwards 因?yàn)檫@湯很咸，后來我們渴得厲害。 C 這種組合也可用so連接兩個(gè)主句的形式來表示： It was too dark to go on，so we camped there 天太黑了，不能繼續(xù)往前走了，所以我們就在那兒露宿了

5、。 You are here，so you may as well give me a hand 你們既然在這兒，不如就幫我一下。 It froze hard that night，so there was ice everywhere next day 那天夜里冷得厲害，所以第二天到處都是冰。 也可以使用therefore，但只限用于非常正式的句子中： The Finnish delegate has not yet arrivedWe are therefore postponing We have therefore decided to postponeTherefore we are

6、 postponing the meeting 芬蘭代表還沒有到達(dá)。我們因此要把會(huì)議推遲因此我們已決定把會(huì)議推遲因此我們要把會(huì)議推遲。（注意therefore可以放在幾個(gè)不同的位置。） suchsothat引導(dǎo)的結(jié)果從句 A such是形容詞，用于形容詞+名詞結(jié)構(gòu)之前： They had such a fierce dog that no one dared to go near their house 他們有一條如此兇猛的狗，以致沒人敢靠近他們家。 He spoke for such a long time that people began to fall asleep 他說了這么長(zhǎng)時(shí)間，

7、以致在座的人都犯困了。 B so是副詞，用于副詞和不帶名詞的形容詞之前： The snow fell so fast that our footsteps were soon covered up 雪下得這么快，以致我們的腳印很快就被雪蓋住了。 His speech went on for so long that people began to fall asleep 他的講話這么長(zhǎng)，以致在座的人都開始犯困了。 Their dog was so fierce that no one dared come near it 他們的狗太兇猛了，所以沒人敢靠近它。 但such不能用于much和man

8、y之前，所以so可用于后跟名詞的much和many之前： There was so much dust that we couldnt see what was happening 灰塵太大了，使得我們看不清發(fā)生了什么事。 So many people complained that they took the programme off 抱怨的人太多，所以他們?nèi)∠四莻€(gè)節(jié)目。 C 注意：sucha形容詞名詞可由so形容詞a名詞來代替，所以such a good man可由so good a man來代替。這只能在名詞前面有aan的情況下使用。這種形式不常見，但有時(shí)出現(xiàn)在文學(xué)作品中。 有時(shí)為了

9、表示強(qiáng)調(diào)，so位于句首。這時(shí)后面跟動(dòng)詞的倒裝形式： So terrible was the storm that whole roofs were ripped off 暴風(fēng)真可怕，把整個(gè)的屋頂全都刮飛了。 讓步從句它們由下列詞來引導(dǎo)：although，though，even though，even if，no matter，however（參見第85節(jié)）。有時(shí)也可以使用whatever。as也可以，但是只限于形容詞asbe結(jié)構(gòu)。AlthoughThoughEven thoughEven if you dont like him you can still be polite 盡管即使縱然即使

10、你不喜歡他，你仍可有禮貌一些。 No matter what you do，dont touch this switch 無論怎樣，都別碰這個(gè)按鈕。However rich people are，they always seem anxious to make more money 無論人們多么富有，他們似乎總還渴望賺到更多的錢。 However carefully you drive，you will probably have an accident eventual ly 無論你開車多小心，最后你大概還會(huì)出車禍。 Whatever you do，dont tell him that I

11、told you this 無論如何，別跟他說這件事是我告訴你的。 Patient as he was，he had no intention of waiting for three hours 哪怕他再有耐心，也不打算等上三個(gè)小時(shí)。 may動(dòng)詞原形可用于假設(shè)情況： However frightened you may be yourself，you must remain outwardly calm 無論你有多害怕，外表上你仍要保持冷靜。 may含有I accept the fact that（我接受這一事實(shí)）的意思： But hes your brother！ He may be my

12、 brother but I dont trust him！ 可他是你的兄弟！ 盡管他是我的兄弟，可我不信任他！ 但may這樣用時(shí)，是另一主句的一部分，并不屬于讓步從句之列。should動(dòng)詞原形結(jié)構(gòu)可用于even if之后，正如用于條件句的if之后一樣，用來表示should后面的動(dòng)詞原形所指的動(dòng)作不太可能發(fā)生： Even if he should find out he wont do anything about it 即便他發(fā)現(xiàn)了，他也不會(huì)采取什么行動(dòng)的。 比較從句 A 形容詞和限定動(dòng)詞連用時(shí)的比較 Its darker today than it was yesterday 今天比昨天天

13、色昏暗。 He doesnt pay as much tax as we doas us 他沒我們交的稅款多。 He spends more than he earns 他花的比掙的多。 注意：that形容詞是一種口語形式，表示“那么”： Will it cost100？ No，it wont cost as much as（all）thatIt wont be（all）that expensiveIt wont be as expensive as that 要花100英鎊嗎？ 不，花不了那么多。沒那么貴。 that形容詞結(jié)構(gòu)有時(shí)用于口語中表示very（很）的意思。 B 副詞和限定動(dòng)詞連用時(shí)

14、的比較 He didnt play as well as we expectedas well as you（did） 他打得不如我們預(yù)料的好你打得好。 He sings more loudly than anyone Ive ever heardthan anyone else （does） 他唱得比我聽到的任何人唱得都響比任何人都聲音響。 You work harder than he doesthan himthan I did at your age 你比他干得賣勁我在你這個(gè)年齡時(shí)干得賣勁。 C 形容詞和不定式或動(dòng)名詞連用時(shí)的比較： 通常兩者都可使用，但動(dòng)詞不定式常常用于特定的動(dòng)作，動(dòng)

15、名詞則用于一般情況（參見下面E）： Its sometimes as cheap to buy a new one as（it is）（to）repair the old one Buying a new one is sometimes as cheap as repairing the old one 有時(shí)買一個(gè)新的跟修理舊的一樣便宜。 He found that lying on the beach was just as boring as sitting in his office He found lying on the beach just as boring as sitting etc 他發(fā)現(xiàn)躺在沙灘上和坐在辦公室里一樣沒趣煩人。 He thinks