狀語從句地時態(tài)特點

1、實用標準涉及狀語從句的幾種特定時態(tài)1. “主將從現(xiàn)"原則即若主句為一般將來時，時間和條件狀語從句通常要用一般現(xiàn)在時表示將來，而不能直接使用將來時態(tài)。如：I' ll give her the telex when she comes.她來時把電傳交給她。I' ll return the book as soon as I have read it.這書一看完我就送還。He' ll have four years at university after he leaves school. 他中學畢業(yè)后要上 四年大學。2. since與完成時since引導時間狀語從

2、句時，其主句通常要用現(xiàn)在完成時，有時也用現(xiàn)在完成進行時。如：She has had another baby since I saw her last.從上次我見到她以來，她又生 了一個孩子。He has grown an inch since I saw him.我上次見到他以后他已長高了一英寸。注：當主句為“It + be + 一段時間”時，則通常用一般現(xiàn)在時代替現(xiàn)在完成時。如：It' s more than three years now since I saw her last.我們已有三年多沒見面 了。3. 特定句式的時態(tài)由no sooner. . . than, hardl

3、y scarcely when引出的時間狀語從句，其主句通常用過去完成時，從句通常用一般過去時。如：Hardly had he arrived when she started complaining.他剛至U她就抱怨起來。No sooner had he gone to sleep than the telephonerang.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)就下起一陣雷暴。No sooner had she agreed to marry him than she started to h

4、ave terribledoubts.她剛同意嫁給他她就開始產(chǎn)生可怕的疑慮。狀語從句的時態(tài)特點般情況下，時間和條件狀語從句的謂語動詞一般用“一般現(xiàn)在時”表示我一到北京就給你打電“一般將來時”，用“現(xiàn)在完成時”表示“將來完成時”。例如：I will call you as soon as I arrive in Beijing.話。（這是由as soon as引導的時間狀語從句，從句中的謂語動詞arrive我一完成此工是一般現(xiàn)在時，表示一般將來時，決不可用will arrive ）As soon as I have finished this work, I will go home.作，就回家

5、。（從句中的謂語動詞用現(xiàn)在完成時have finished ,表示將來完成時，決不可用 will have finishedIf he comes back, please let me know. 如果他回來了，請通知我。（從句中的謂語動詞用 comes back,表示一般將來時，決不可用 will come back ）狀語從句講解和練習狀語修飾動詞、形容詞、副詞或整個句子。通常由副詞、介詞短語、動詞不定式、分詞和從句等擔當。例如：1. Naturally , our grandparents were pleased to get our phonecall .（副詞）2. We wor

6、ked hard , from sunrise to sunset .（介詞狀短語 ）3. To help my disabled aunt , I spend an hour working in herhouse every day .（ 不定式）4. Seen from a distance , the farmhouse looked deserted .（過去分詞）5. I know how to light a camp fire because I had done it before .（原因狀語從句）狀語的位置比較靈活，可以位于句首、句末或句中。enough用作狀語修飾形容詞

7、和副詞時必須后置。狀語從句主要用來修飾主句或主句的謂語。一般可分為九大類，分別表示時間、地點、原因、目的、結(jié)果、條件、讓步、比較和方式。盡管種類較多，但由于狀語從句與漢語結(jié)構(gòu)和用法相似，所以理解和掌握它并不難。狀語從句的關(guān)鍵是要掌握引導不同狀語從句的常用連接詞和特殊的連接詞即考點?，F(xiàn)分別列舉如下：1 .時間狀語從句常用弓 I 導詞： when, as, while, as soon as, before, after, since , till,until特殊弓 I 導詞： the minute, the moment, the second, every time, theday , the

8、 instant, immediately , directly, no soonerthan, hardly when, scarcely whenI didn ' t realize how special my mother was until I became an文案大全實用標準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

9、 home than it began to rain.Every time I listen to your advice, I get into trouble.2 .地點狀語從句常用引導詞：where特殊弓 I 導詞：wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.3 .原因狀語從句常用弓 I 導詞： because, since, as, for特殊弓 I 導詞： se

10、eing that, now that, in that, considering that, giventhat.My friends dislike me because I ' m handsome and successful.Now that everybody has come, let ' s 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

11、 more than 12 years old, his height of1.80 m is quite remarkable.常用弓 I 導詞：so that, in order that特殊弓 I 導詞：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 v

12、oice on purpose that the students in theback could hear more clearly.5 .結(jié)果狀語從句常用引導詞:so that, so that, such that, 特殊弓 I 導詞：such that, to the degree that, to the extent that, tosuch a degree that,He got up so early that he caught the first bus.It' s such a good chance that we must not miss it.To s

13、uch an degree was he excited that he couldn' t sleep lastnight.6 .條件狀語從句常用引導詞：if, unless,特殊弓 I 導詞： as/so long as, only if, providing/provided that,supposing that, in case that, on condition thatWe ' ll start our project if the president agrees.You will certainly succeed so long as you keep o

14、n trying.Provided that there is no opposition, we shall hold the meetinghere.7 .讓步狀語從句常用弓 I 導詞：though, although, even if, even though特殊引導詞：as（用在讓步狀語從句中必須要倒裝），while （ 一般用在旬首 ）,no matter ，in spite of the fact that, while, whatever,whoever, wherever, whenever, however, whicheverMuch as I respect him, I

15、 can ' t 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 though the weather is rough.No matter how hard he tried, she could not change her mind.He won ' t listen whatever you may say.8 .比較狀語從句常用引導詞：as（同級比較）,than（不同程度的比較）特殊引導詞： the more the more ;just as ， so ；

16、A is to Bwhat /as X is to Y; no more than; not A so much as BShe is as bad-tempered as her mother.The house 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，猶如油之于機常用引導詞： as, as if, how特殊引導詞：the wayWhen in Rome, do as the Roman

17、 do.She behaved as if she were the boss.Sometimes we teach our children the way our parents have taught us.10 .狀語從句的簡化?狀語從句的省略狀語從句同時具備下列兩個條件：主句和從句的主語一致，或從句主語為it;從句主要動詞是 be的某種形式。從句中的主語和be動詞?？墒÷?。例如：When ( the museum is ) completed , the museum will be open to the public next year .He ' ll go to th

18、e seaside for his holiday if (it is ) possible.另外，比較狀語從句經(jīng)常省略。例如：I' m taller than he (is tall ).The higher the temperature (is), the greater the pressure (is ).就狀語從句而言，有時為了使語言言簡意賅，常常將狀語從句進行“簡化"。 狀語從句的"簡化"現(xiàn)象在口語中較為普遍，而且在高考中的復現(xiàn)率也較高。因止匕，有必要對其進行全面、透徹的了解。狀語從句的"簡化”現(xiàn)象常存在于以下五種狀語從句中：由if

19、, unless等引導的條件狀語從句 ；由although, though, even if / though等引導的讓文案大全實用標準文案大全步狀語從句 由 when, while, as, before, after, until / till等引導的時間狀語從句；由as, as if等引導的方式狀語從句；由as, than等引導的比較狀語從句。下面針對這五種情形作一歸納。當狀語從句的主語是it,且謂語動詞是be時,it和be要完全簡化掉。例如:If (it is) possible, he will help you out of the difficulty.如果可能的話，他會幫你擺脫

20、困境。You must attend the meeting unless (it is) inconvenient to you.非情況對你來說不方便，否則你必須出席這次會議。(2)當狀語從句的主語和主句的主語一致時，從句可以將主語和be動詞簡化掉。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.他小時候就學會了騎自行車。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.他在孩提時代就樂于助人。Although (he was) a farmer, now he is a famous director.盡管他曾是個農(nóng)民，而現(xiàn)在是位著名的導演了。c.連詞+現(xiàn)在分詞As (she was) walking along the river bank, she was singing a popsong.她沿著河堤邊走邊唱著流行歌曲。Alt