狀語(yǔ)從句的時(shí)態(tài)特點(diǎn)

1、精選優(yōu)質(zhì)文檔-傾情為你奉上涉及狀語(yǔ)從句的幾種特定時(shí)態(tài) 1. “”原則即若主句為，時(shí)間和條件狀語(yǔ)從句通常要用一般現(xiàn)在時(shí)表示將來(lái)，而不能直接使用將來(lái)時(shí)態(tài)。如：Ill give her the telex when she comes. 她來(lái)時(shí)把電傳交給她。Ill return the book as soon as I have read it. 這書一看完我就送還。Hell have four years at university after he leaves school. 他中學(xué)畢業(yè)后要上四年大學(xué)。2. since與完成時(shí)since 引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，其主句通常要用，有時(shí)也用

2、現(xiàn)在完成進(jìn)行時(shí)。如：She has had another baby since I saw her last. 從上次我見(jiàn)到她以來(lái)，她又生了一個(gè)孩子。He has grown an inch since I saw him. 我上次見(jiàn)到他以后他已長(zhǎng)高了一英寸。注：當(dāng)主句為“It + be + 一段時(shí)間”時(shí)，則通常用一般現(xiàn)在時(shí)代替現(xiàn)在完成時(shí)。如：Its more than three years now since I saw her last. 我們已有三年多沒(méi)見(jiàn)面了。 3. 特定句式的時(shí)態(tài)由no sooner. . . than, hardly scarcelywhen引出的時(shí)間狀語(yǔ)從句，

3、其主句通常用過(guò)去完成時(shí)，從句通常用。如：Hardly had he arrived when she started complaining. 他剛到她就抱怨起來(lái)。No sooner had he gone to sleep than the telephone rang. 他剛睡著電話鈴就響了。We had no sooner set out than a thunderstorm broke. 我們剛出發(fā)就下起一陣?yán)妆?。No sooner had she agreed to marry him than she started to have terrible doubts. 她剛同意嫁給

4、他她就開(kāi)始產(chǎn)生可怕的疑慮。狀語(yǔ)從句的時(shí)態(tài)特點(diǎn)一般情況下，時(shí)間和條件狀語(yǔ)從句的謂語(yǔ)動(dòng)詞一般用“一般現(xiàn)在時(shí)”表示“一般將來(lái)時(shí)”，用“現(xiàn)在完成時(shí)”表示“將來(lái)完成時(shí)”。例如： I will call you as soon as I arrive in Beijing. 我一到北京就給你打電話。（這是由as soon as引導(dǎo)的時(shí)間狀語(yǔ)從句，從句中的謂語(yǔ)動(dòng)詞arrive是一般現(xiàn)在時(shí)，表示一般將來(lái)時(shí)，決不可用will arrive） As soon as I have finished this work, I will go home. 我一完成此工作，就回家。（從句中的謂語(yǔ)動(dòng)詞用現(xiàn)在完成時(shí)have

5、finished，表示將來(lái)完成時(shí),決不可用will have finished） If he comes back, please let me know.如果他回來(lái)了，請(qǐng)通知我。（從句中的謂語(yǔ)動(dòng)詞用comes back,表示一般將來(lái)時(shí)，決不可用will come back） 狀語(yǔ)從句講解和練習(xí)狀語(yǔ)修飾動(dòng)詞、形容詞、副詞或整個(gè)句子。通常由副詞、介詞短語(yǔ)、動(dòng)詞不定式、分詞和從句等擔(dān)當(dāng)。例如：1. Naturally , our grandparents were pleased to get our phone call . (副詞)2. We worked hard , from sunris

6、e to sunset . (介詞狀短語(yǔ))3. To help my disabled aunt , I spend an hour working in her house every day . (不定式)4. Seen from a distance , the farmhouse looked deserted . (過(guò)去分詞)5. I know how to light a camp fire because I had done it before .（原因狀語(yǔ)從句）狀語(yǔ)的位置比較靈活，可以位于句首、句末或句中。enough用作狀語(yǔ)修飾形容詞和副詞時(shí)必須后置。狀語(yǔ)從句主要用來(lái)修飾主

7、句或主句的謂語(yǔ)。一般可分為九大類，分別表示時(shí)間、地點(diǎn)、原因、目的、結(jié)果、條件、讓步、比較和方式。盡管種類較多，但由于狀語(yǔ)從句與漢語(yǔ)結(jié)構(gòu)和用法相似，所以理解和掌握它并不難。狀語(yǔ)從句的關(guān)鍵是要掌握引導(dǎo)不同狀語(yǔ)從句的常用連接詞和特殊的連接詞即考點(diǎn)。現(xiàn)分別列舉如下:1 時(shí)間狀語(yǔ)從句常用引導(dǎo)詞：when, as, while, as soon as, before, after, since , till, until特殊引導(dǎo)詞：the minute, the moment, the second, every time, the day，the instant, immediately , direc

8、tly, no sooner than, hardly when, scarcely whenI didnt realize how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果園) the moment they saw the guard.No sooner had I arrived home than it began to rain.Every time I l

9、isten to your advice, I get into trouble.2 地點(diǎn)狀語(yǔ)從句常用引導(dǎo)詞：where特殊引導(dǎo)詞：wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.3 原因狀語(yǔ)從句常用引導(dǎo)詞：because, since, as, for特殊引導(dǎo)詞：seeing that, now that, in that, considering that, given t

10、hat.My friends dislike me because Im handsome and successful.Now that everybody has come, lets begin our conference.The higher income tax is harmful in that it may discourage people from trying to earn more.Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.4

11、目的狀語(yǔ)從句常用引導(dǎo)詞：so that, in order that特殊引導(dǎo)詞：lest, in case, for fear that，in the hope that, for the purpose that, to the end thatThe boss asked the secretary to hurry up with the letters so that he could sign them.The teacher raised his voice on purpose that the students in the back could hear more clear

12、ly.5 結(jié)果狀語(yǔ)從句常用引導(dǎo)詞：so that, so that, such that,特殊引導(dǎo)詞：such that, to the degree that, to the extent that, to such a degree that,He got up so early that he caught the first bus.Its such a good chance that we must not miss it.To such an degree was he excited that he couldnt sleep last night.6 條件狀語(yǔ)從句常用引導(dǎo)詞：

13、if, unless,特殊引導(dǎo)詞：as/so long as, only if, providing/provided that, supposing that, in case that, on condition thatWell start our project if the president agrees.You will certainly succeed so long as you keep on trying.Provided that there is no opposition, we shall hold the meeting here.7 讓步狀語(yǔ)從句常用引導(dǎo)詞：

14、though, although, even if, even though特殊引導(dǎo)詞： as(用在讓步狀語(yǔ)從句中必須要倒裝)，while ( 一般用在句首 )，no matter ， in spite of the fact that, while, whatever, whoever, wherever, whenever, however, whicheverMuch as I respect him, I cant agree to his proposal.盡管我很尊敬他， 我卻不同意他的建議。The old man always enjoys swimming even thoug

15、h the weather is rough.No matter how hard he tried, she could not change her mind.He wont listen whatever you may say.8 比較狀語(yǔ)從句常用引導(dǎo)詞：as(同級(jí)比較), than(不同程度的比較)特殊引導(dǎo)詞：the more the more ; just as ， so; A is to B what /as X is to Y; no more than; not A so much as BShe is as bad-tempered as her mother.The ho

16、use is three times as big as ours.The more you exercise, the healthier you will be.Food is to men what oil is to machine. 食物之于人，猶如油之于機(jī)器。9 方式狀語(yǔ)從句常用引導(dǎo)詞：as, as if, how特殊引導(dǎo)詞：the wayWhen in Rome, do as the Roman do.She behaved as if she were the boss.Sometimes we teach our children the way our parents ha

17、ve taught us.10. 狀語(yǔ)從句的簡(jiǎn)化狀語(yǔ)從句的省略狀語(yǔ)從句同時(shí)具備下列兩個(gè)條件:主句和從句的主語(yǔ)一致，或從句主語(yǔ)為it；從句主要?jiǎng)釉~是be的某種形式。從句中的主語(yǔ)和be動(dòng)詞?？墒÷?。例如：When ( the museum is ) completed , the museum will be open to the public next year .Hell go to the seaside for his holiday if (it is ) possible.另外，比較狀語(yǔ)從句經(jīng)常省略。例如：Im taller than he (is tall ).The higher

18、 the temperature (is), the greater the pressure (is ).就狀語(yǔ)從句而言,有時(shí)為了使語(yǔ)言言簡(jiǎn)意賅,常常將狀語(yǔ)從句進(jìn)行"簡(jiǎn)化"。狀語(yǔ)從句的"簡(jiǎn)化"現(xiàn)象在口語(yǔ)中較為普遍,而且在高考中的復(fù)現(xiàn)率也較高。因此,有必要對(duì)其進(jìn)行全面、透徹的了解。狀語(yǔ)從句的"簡(jiǎn)化"現(xiàn)象常存在于以下五種狀語(yǔ)從句中:由if, unless等引導(dǎo)的條件狀語(yǔ)從句;由although, though, even if / though等引導(dǎo)的讓步狀語(yǔ)從句;由when, while, as, before, after, unt

19、il / till等引導(dǎo)的時(shí)間狀語(yǔ)從句;由as, as if等引導(dǎo)的方式狀語(yǔ)從句;由as, than等引導(dǎo)的比較狀語(yǔ)從句。下面針對(duì)這五種情形作一歸納。(1)當(dāng)狀語(yǔ)從句的主語(yǔ)是it,且謂語(yǔ)動(dòng)詞是be時(shí),it和be要完全簡(jiǎn)化掉。例如:If (it is) possible, he will help you out of the difficulty.如果可能的話,他會(huì)幫你擺脫困境。You must attend the meeting unless (it is) inconvenient to you.除非情況對(duì)你來(lái)說(shuō)不方便,否則你必須出席這次會(huì)議。(2)當(dāng)狀語(yǔ)從句的主語(yǔ)和主句的主語(yǔ)一致時(shí),從

20、句可以將主語(yǔ)和be動(dòng)詞簡(jiǎn)化掉。常用于以下幾種情形:a.連詞+形容詞As (he was) young, he learned how to ride a bike.他小時(shí)候就學(xué)會(huì)了騎自行車。Whenever (she is) free, she often goes shopping.她有空就去逛商店。Work hard when (you are) young, or you'll regret.少壯不努力,老大徒傷悲。b.連詞+名詞While (he was) a young boy, he was always ready to help others.他在孩提時(shí)代就樂(lè)于助人。Although (he was) a farmer, now he is a famous director.盡管他曾是個(gè)農(nóng)民,而現(xiàn)在是位著名的導(dǎo)演了。c.連詞+現(xiàn)在分詞As (she was) walking along the river bank, she was singing a pop song.她沿著河堤邊走邊唱著流行歌曲。Although (he is) doing