第一篇：初中英語——If引導的條件狀語從句

初中英語――if引導的條件狀語從句

引導條件狀語從句最常用的連詞是if，常見的if條件狀語從句表示在某條件下，某事很可能發生，條件是可能存在的，主句中某種情況發生的概率也是很高的。如：

If you ask him，he will help you．如果你請他幫忙，他會幫你的。

If you fail in the exam，you will let him down．如果你考試不及格，你會讓他失望的。

If you have finished the homework，you can go home．如果你作業做完了就可以回家了。

另外，if從句還表示不可實現的條件或根本不可能存在的條件，也就是一種虛擬的條件或假設。從句多用一般過去時或過去完成時，表示對現在或過去的一種假設。如：

If I were you，I would invite him to the party．如果我是你，我會邀請他參加聚會。

I would have arrived much earlier if I had not been caught in the traffic．要不是交通堵塞，我本會來得早一些。另外你還要注意if 條件句的時態搭配

1．if從句用一般現在時，主句用一般將來時

If he runs，he’ll get there in time.如果他用跑的，他就會及時趕到那兒。

The cat will scratch you if you pull her tail.如果你拉貓的尾巴，它就會抓你。

2．if從句用一般現在時，主句用may/might/can

If the fog gets thicker，the plane may/might be diverted.如果霧在大一些，飛機可能就會改在別的機場降落。If it stops snowing，we can go out.如果雪停了，我們就可以出去。

3．if從句用一般現在時，主句用must/should

If you want to lose weight，you must/should eat less bread.如果你想減肥，你必須少吃面包。

4．if從句用一般現在時，主句用一般現在時

If you heat ice，it turns to water.(也可用will turn)如果把冰加熱，它就會化成水。

5．if從句用現在進行時，主句用一般將來時

If you are looking for Peter，you’ll find him upstairs.如果你是在找彼得，上樓就會找到他。

6．if從句用現在完成時，主句用一般將來時

If you have finished dinner，I’ll ask the waiter for the bill.如果你吃完了，我就叫服務生來算賬

注意 ：

學習“ if ” 引導的條件狀語從句的用法,現在總結一下:

if 條件句不一般,幾個要點記心間;

條件句,放在前,逗號要放句中間。

條件句表可能，主句多用將來時；

條件句表事實，主句常用現在時。

在 if 引導的條件狀語從句中，如果從句談論的是一個有可能發生的事實及其產生的相關的結果，主句用一般將來時態，從句用一般現在時態。如：

We can walk there if we can't find a bus.If it rains tomorrow ,we will not goto the zoo.What will youdo if youfind a panda in danger.如果 if 條件句談論的是重復發生和預示要發生的情景和事件，則主從句大多用一般現在時態。如：If bears are in danger ,they attack people.在 if 引導的條件狀語從句中，if 和條件句位置靈活，可直接放在主句后面，若 if 條件句放句首，從句后面要加逗號，和主句隔開。還要注意前后時態一致原則

if 條件狀語從句的時態練習

一.單項選擇

1.If you _____ to the party, you’ll have a great time.A.will goB.wentC.goD.going

2.It will be a long time ____ Peter _____ his work.A.since, has finishedB.after, finishes

C.when, will finishD.before, finishes.3.What will father _____ us from Japan?

A.takeB.bringC.carryD.make

4.Weifang is famous ______ kites

A.forB.toC.onD.with

5． I ____ her the answer if she ____me.A.can tell, will askB.will tell, will askC.would tell, askD.will tell, asks

6.– What are you going to do tomorrow?--We’ll go to the library tomorrow if it ___.A.isn’t rainB.rainC.won’t rainD.doesn’t rain

7.—Do you know when he will come back tomorrow?--Sorry, I don’t know.When he ____ back, I’ll tell you.A.comesB.will comeC.comeD.may come

8.What will you do if you _____ to the old folk’s home visit?

A.goB.wentC.goingD.will go

9.If I eat ____ food, I’ll be very fat.A.too manyB.many tooC.too muchD.much too

10.I’ll give the book to him if he ___ here next Sunday.A.will comeB.comesC.is comingD.came

11.There ____an English film in our school tomorrow.A.is going to haveB.will haveC.is going to beD.has

12.Could you tell us where ____？

A.will the next Olympic Games heldB.the next Olympic Games will be held

C.would the next Olympic Games be heldD.the next Olympic Games would be held

13.When my mother returned last night, I ____a book.A.readB.am readingC.was readingD.am going to read

14.What ____ you ____ when it began to rain?

A.do, doB.were, doingC.are, doingD.did, do

15.I’ll wake you up when he ____back.A.willB.is going to comeC.comesD.come

二．在正確的答案下劃一條線。

1.Daina(will go/go/goes)to Europe if she(will pass/pass/passes)the exams.2.The graduates(will teach/teach/teaches)in the poor village if the Ministry of Education(will agree/ agree/agrees)soon.3.If there(will be/ are/is)a car accident, they(will call/call/calls)110 for help at once.4.If it(won’t/don’t/doesn’t/ isn’t)rainy, we(will take/ take/takes)walk outside.5.If a UFO(will land/land/lands)in front of me, I(will go/go/goes)in to look for the alien.6.If he(will have/have/has)money, he(will bulid/build/builds)a science lab.7.Don’t wait for me if I(am/ will be)late.8.They(won’t/don’t)go to the beach if it(will rain/rain /rains).9.I(will call/ call)you if he(will stay/stay /stays)at home.10.Mr Smith(will let/ let/lets)you know if he(will need/ need/ needs)help.11.(Will / Do/ Does)he visit the museum if he(won’t / don’t/ doesn’t)gettired?

12.Where(will/ do/does)they live if they(will miss/ miss/ misses)the bus?

三、用所給詞的適當形式填空

1.If you ________(feel)tired, you _________(have)to have a rest.2.Where _____ he ____(see)the film if he _________(have)time?

3.If there ____(be)fewer trees, there _______(be)more pollution.4.He ___(dress)more casually if he ___(not work)on weekends.5.If Marcia _______(live)alone, she _______(keep)a pet parrot.6.Lana _____(buy)a new dress if the old one ____(be)out of style.7.The twins _______(fight)if they__________(argue).8.I ______(have)a bake sale if I ____(need)money for education.9.Peter ____(send)me a beautiful souvenir if he ____(tour)Spain.10.If Mr.Green _______(say)I am hard-working, my parents ___(feel)glad.11.I ______(go)to the beach if it________(not rain)this week.12._____they ___(have)a match if the P.E.teacher __(be)busy?

13.He ____(write)a letter to his grandparents if he ____(get)his report card this week.14.If she ______(get)up late, she _____(not catch)the early bus.15.Peter ____(major)in English if he ____(pass)the exams in PekingUniversity.四．完成句子

1.如果他到的晚了會發生什么事情？

What _______________ if he _____________ late?

2.如果努力學習，你就會取得好成績。

If you_________ ________, you ________ good ___________.3.他如果看電視太久了，他的父母會不高興。

If he _____ TV too much, his parents _____ _________unhappy.4.如果我們為他組織生日聚會，大家都會來的。

Everyone ________ if we _______a birthday party ________ him.5.如果明天不下雨，我會和你一起去公園的。

If it _____ ______tomorrow, I _____ go to the park ______you.6.如果她睡過頭了，就會旅游遲到的。

She;_________ ___the trip if she _____ ___

7.如果他有空，他會幫助你的。

If he ____ ____, he ______ ____ you.8.如果Tom考試不及格，他就沒有機會上高中了。

Tom ______have the _____to go to the high school if he ________the exams.9.你如果抄同學的作業就不能學好各門功課。

You _______ _____ good at all the subjects if you ______ the other students’ homework.

第二篇：狀語從句

Clauses of Condition, Concession and Contrast(條件、讓步和對比從句)條件從句

由 if, unless, as(so)long as, provided / providing(that), suppose / supposing(that), in case等引導，如：

If he comes I'll tell you.You would have succeeded if you had tried harder.You will fail unless you work hard.(=You will fail if you don't work hard.)

Supposing / Suppose it rains, shall we have the match as scheduled?

In case you need anything else, please let me know.讓步從句

由 although, though, even though, even if, whether...or, while, as, wh-words + ever(= no matter + wh-words)等從屬連詞引導，如：

He is quite modest though he is the best student in the class.The needle has the same mass whether it is hot or cold.Whichever(No matter which)plan you adopt, you will meet with difficulties.使用上述讓步從句的某些從屬連詞時注意以下幾點：

a.although(though)不可與連詞 but 連用；

b.as 引導的從句意義和 though 相似，但表示的語氣較強，并須將強調的詞放在句首（但不用 although），如：

Simple as(though)the question may seem, it is not at all common in nature.c.however / no matter how 引導的從句中，however / no matter how 后須緊跟形容詞或副詞，如：

However / No matter how hard I tried, I couldn't remember all the questions.對比從句

表示兩個人或兩件事之間的對比，常用 while 或 whereas 引導，如：

He is idle, while his brother is diligent.Some people like fat meat, whereas others hate it.Clauses of Cause, Result and Purpose(原因、結果和目的從句)原因從句

主要由下列從屬連詞引導：

1． Because, as, since。其中 because 語氣最強，表示直接、主要原因，通常引導的從句放在句尾，特別是回答 why 提出的問題只能用 because;as 和 since 表示明顯的、已知的原因，since 比 as 正式，如：

They had to move because their building was to be pulled down.As Mary was the eldest, she looked after the others.Since they live near the sea, they often go sailing.2． now that, seeing(that), considering(that), in that。這些連詞與 as, since 意思相近，通常用于書面語，并且它們兼有其它意義。now that 有“時間”含義，表示”既然”，說明一種新

情況；seeing(that)和 considering(that)有“條件”含義；in that 有”某一方面”含義，如：

Now that you are well again you can travel.Seeing(that)they are just beginners, they are doing quite a good job.I was lucky in that I was able to find a good baby-sitter（保姆）.結果從句

常用 so that, so...that, such...that, that 等連詞引導，如：

I was caught in a shower, so that all my clothes got wet.I was so tired that I could hardly keep my eyes open.He was such a good runner that I couldn't catch him.目的從句

常用 so that, in order(that), lest, for fear that 等連詞引導，如：

I took a taxi so that I could be in time for the meeting.Come closer in order that you may see the blackboard better.so that 既可引導結果從句也可引導目的從句，但結果從句表示事實，通常不含情態動詞；目的從句表示希望或想要實現的事實，通常含有情態動詞，如：

He got up early so that he caught the train.（結果）

He got up early so that he could(might)catch the train.（目的）

Lest 和 for fear(that)含有否定意義，并且從句中動詞須用 “動詞原形”或 ”should + V.” 的虛擬語氣，如：

He ran away lest he(should)be caught.(= He ran away in order that he would not be caught.)

I checked all the results time and again for fear that there should be any mistakes.(= I checked all the results time and again so that there wouldn't be any mistakes.)

Clauses of Manner and Comparison(方式和比較從句)方式從句

主要由 just as, as, as if, as though 等連詞引導，如：

He doesn't speak the way as other people do.Our bodies are made up of millions of very small cells, just as a building is made of many stones or bricks.He speaks French as if(as though)he were a Frenchman.由 as if 或 as though 引導的從句通常用虛擬語氣，但如果主句謂語是感官動詞，并且所述情況實現可能性大，也可用陳述語氣，如：

It looks as if the coming autumn harvest will be even better than the last one.比較從句

主要由 as...as, not so(as)...as, than 等連詞引導，如：

This table is as wide as that one.Mary can not run so(as)fast as Tom.Silver conducts electricity better than other metals.Clauses of Proportion and Other Types(比例從句和其它從句)比例從句

由關聯詞 the...the...連接形容詞或副詞比較級構成，如：

The more she thought about it, the more she liked it.其它從句

如 as...so 和 what...that 引導的類比從句；so(as)far as 引導的范圍從句；except that 引導的例外從句；rather / sooner than 和 would / had rather than 引導的擇比從句等，如：

As the desert is like a sea, so is the camel like a ship.（沙漠似海，駱駝似舟。）

What blood vessel is to a man's body, that railway is to transportation.（鐵路對于運輸，好比血管對于人的身體。）

As(So)far as I know, he is an honest man.（據我所知，他是一個誠實的人。）

I would do it with pleasure, except that I am too busy.（要不是我太忙了，我會很高興去做的。）

Rather than get money in such a dishonest way, he would beg in the streets.（他寧可沿街乞討，也不愿意用欺騙手段騙取錢。）

He would rather have the small one than the large one.（他寧可要那個小的，而不愿要那個大的。）

第三篇：if引導的條件狀語從句

If引導的條件狀語從句中考題型

1.I will send you an e-mail as soon as I _______ in Canada.A.arrive B.arrived C.am arriving D.will arrive 2.If there _______ no buying and selling of animals, there ______ no killing in nature.A.is;will he B.will be;will be C.is;is D.will be;is 3.I’m waiting for my friend._____, I'll go shopping alone.A.If she comes B.If she won't come C.If she doesn't come 4.Mr.Green speaks very loudly _______ all the people can hear him clearly.A.when B.so that C.because 5.You can’t watch TV ________ you finish your homework.A.before B.if C.while D.as 6.As we all know, planting trees is good for the environment.Our class will go to the Sun Island tomorrow.As soon as we ______ there, we’ll begin to plant trees.A.arrived B.arrive C.will arrive 7.The students ________ have a sports meeting this weekend if it ________.A.won’t;rains B.will;rains C.won’t;will rain D.are going to;is going to rain 8.Don’ talk loudly at the meeting.If you ________, you will have to leave.A.do B.are C.did 9.I don't know if she _______ to my birthday party tomorrow.If she ______, I'll be very happy.A.comes;comes B.will come;comes C.comes;will come 10.— When will you come to Daqing? — I will call you _____I arrive.A.till B.while C.as quickly as D.as soon as 11 I’ll give it to Jim as soon as I _______ him tomorrow.A.saw B.will see C.see D.have seen 12.I’m waiting for my friend._______, I’ll go shopping alone.A.If she comes B.If she doesn’t come C.If she won’t come 13.If she ______ here tomorrow, I will tell you.A.comes B.will come C.come D.came 14.Mary, could you tell me if your mother ________ our school sports meeting tomorrow? —I think she will come to school if she _________ free.A.will take part in;will be B.takes part in;is C.will take part in;is D.takes part in;will be 15.—Tom wants to know if you will have a picnic tomorrow.—Yes.But if it ______, we’ll play chess instead.A.will rain B.rained C.is raining D.rains 16.— You study ______ hard _______ you’re sure to pass the exam.— Thank you for saying so.A.enough, to B.as, as C.so, that 17.If Tom _____ the game, we'll give him a surprise".A.win B.wins C.won D.miming 18.— I hear the famous singer Xu Song may come to Ningbo next month.— Really? _______ he comes, my younger sister will be very excited.A.If B.Until C.Unless D.Before 19.－What time will Diana get to Chengdu? －I’m not sure.When he ________, I’ll call you.A.will arrive B.arrive C.arrives 20.Zhou Libo is Shanghai’s favorite funny man.He is good at making people laugh.His lively shows were _________ hot that tickets sold out in minutes.A.very B.too C.such D.so 21.They develop their skills _________ they can do things better and better.A.however B.because C.since D.so that 22.They develop their skills _________ they can do things better and better.A.however B.because C.since D.so that 23.—Let

’

s go fishing if it _____ this weekend.—But nobody knows if it _______.A.is fine, will rain B.will be fine, rains C.will be fine, will rain D.is fine;rains

1.答案：A

【解析】考查點：本題考查狀語從句的時態的用法。當主句是將來時態時，狀語從句用一般時態來代替將來時，所以選擇答案A。

2.答案：A

【解析】考查點：本題考查if引導的狀語從句的時態。if 意為“如果”。引導條件狀語從句，主將從現。故選A。

3答案：C

【解析】考查從句的時態。If引導的條件狀語從句，主句用將來時，從句用一般現在時。根據句意：如果他不來，我就獨自去購物。故選C。

4.答案： B

【解析】詞義辨析。When 是“當------的時候”的意思；so that是“為了，目的是”的意思；because是“因為”的意思；本句中，so that 引導的目的狀語從句。

5.答案：A

【解析】本題考查詞義辨析。A項意為“在??之前”；B項意為“假如；即使”；C項意為“當??時候”；D項意為“因為”。句意為“你不能看電視在你完成作業_____”。根據語可知此空應為before.故選A。

6.答案：B

【解析】考查狀語從句的時態。在as soon as引導的時間狀語從句中，如果主句和從句的動作都發生在將來，從句用一般現在時表示將來，句意：我們一到那兒，我們就開始植樹。故選B.7.答案：A

【解析】考查if引導的條件狀語從句用法。if意為“如果”，引導條件狀語從句，主句用一般將來時，從句用一般現在時態。句意為“如果明天下雨我們就不舉行運動會了”。故選A。

8.答案：A

【解析】考查狀語從句的時態當主句為將來時態是，if引導的狀語從句中用一般時態代替將來時，而這里需要助動詞，不是系動詞，所以選擇答案A。

9.答案：B

【解析】賓語從句和條件狀語從句的考查。由if引導的條件狀語從句，用一般現在時態，主句用一般將來時。當if做是否講時，所引導的賓語從句通常是一般將來時。

10答案：D

11【解析】C 考查點：考察條件從句的時態。解題思路：as soon as表示“一??就??”，其主句用將來時態，從句要用一般現在時態。故選C。

12答案：B

13答案：A

14答案：C

【解析】考查if引導的賓語從句及條件狀語從句的用法。問句是由if引導的賓語從句，時間狀語為 tomorrow，故用一般將來時；答語是由if引導的條件狀語從句，主句用將來時，從句用一般現在時，故選C。

15答案：D

16答案：C

【解析】考查so?that的用法。enough...to“足夠做??”；

as...as...“和??一樣”；so...that...“如此??以至??”。由句意：－你學習如此的努力以至于你肯定能通過考試。－謝謝你這么說。故選C。

答案：B

17【解析】考查if引導的條件狀語從句。在if引導的條件狀語從句中，如果主句和從句發生的動作都在將來時間，從句用一般現在時表將來。故選B。

18答案：A

【解析】狀語從句考查。if如果；until到??為止；unless除非；before在??之前。根據句意，如果他來，我的妹妹將會很激動的。19答案：C

【解析】考查從句的時態。When引導的時間狀語從句中，如果主句和從句的動作都發生在將來，主句用將來時，從句用一般現在時。he是單數第三人稱形式，故用arrives。

20答案：D

【解析】句型考查。句中的句型為so?that?, 意為“如此?.以至于?”，so 用來修飾形容詞或副詞，such也構成這一句型，但such 用來修飾名詞。

21答案：D

【解析】狀語從句。句意：他們拓展他們的技能是為了他們能夠把事情做的越來越好。后面的從句表示目的，只有D符合題意。

22答案：D

【解析】考查連詞的用法。句意：他們拓展他們的技能是為了他們能夠把事情做的越來越好。后面的從句表示目的，只有D符合題意。

23答案： A

【解析】本題考查if的用法。第1空if引導的是條件狀語從句，因此用一般現在時表示將來；第2空if引導的是賓語從句，時態時間狀語this weekend決定用將來時。故選A。

第四篇：初中英語狀語從句教案及精品練習講解

掌握狀語從句的作用。▲掌握狀語從句的意義。▲掌握各種不同類型的狀語從句。

【知識要點】狀語從句在句中作狀語，修飾句中的動詞、形容詞或副詞等。

狀語從句由從屬連詞作關聯詞，從屬連詞在從句中不充當句子成分。狀語從句在主句之前，一般要用逗號分開，朗讀時用升調。狀語從句在主句之后，一般不用逗號，朗讀時用降調。

狀語從句按其意義和作用可分為時間、條件、原因、讓步、目的、結果、方式、比較、地點等類型。1.時間狀語從句

(1)常用的連詞有when（當……時候），while（當……時候）,before(在……以前)，after（在……以后），until(till)（直到……為止）,since（自從……以來）, as soon as（一……就）等。(2)時間狀語從句中一般不用將來時，若談論將來的事情，往往用一般現在時代替：

如：I'll go on with the work when I ________(come)back tomorrow.As soon as he ___________(finish)the work, he will come to see me..2.條件狀語從句

常由if(假如、如果)No matter(不管)來引導，如果主句是一般

如： I'll go for a picnic if it _____(be)fine.No matter what he ________(say)，I won't believe him，3.原因狀語從句

(1)常由because, since, as引導。

(2)because表示直接的原因，著重點在從句，用于回答why, 語氣最強。because 不能與 so 連用。

since一般表示對方已知的，無須加以說明的既成事實的理由，全句中心在主句，語氣比because弱，常譯為“既然”。

as表示十分明顯的原因，一般說明因果關系，著重點在主句，語氣較弱。常譯為“由于”。

for是個并列連詞，只能放在另一個并列分句后面，表示一種推理或解釋，或用作附加說明，而不是指理由或原因，語氣最弱，一般不放在句首，常譯成“因為”。

如：______ it is raining hard, we won't go hiking._______ you are ill, I'll go alone.I can't go to school ________ I am ill.You haven't met him, ______ he didn't come here.4.結果狀語從句

一般由so...that, such...that引導，so 與such的區別：(1)so＋形容詞＋a / an＋名詞

(2)such＋a / an＋形容詞＋名詞（3）such＋形容詞＋不可

/ 可數名詞復數

(4)so＋many / much / few / little＋形容詞＋名詞

如：It's _______ a heavy box that nobody can move it.It's ______ heavy a box that nobody can move it.There are _________many books in the library 5.目的狀語從句

往往由so that,引導，如：I'll speak slowly_________ you can understand me.6.比較狀語從句

常由as...as, than, not as / so...as等引導。比較從句部分常是省略句，如：I'm taller ______ he(is).Science is not _____ popular _____ English.7.讓步狀語從句

由though或although(雖然)等引導，但不能與but同時連用，改錯：Though it snowed heavily,but they kept on working.1.方式狀語從句

常用as if ,as though（好像）引導。如：He acted as if(though)nothing had happened.2.地點狀語從句

常用where, wherever引導。

I'll go where work is hard.【典型例題解析】

例1 The question was _______ difficult that nobody could answer______.A.very...them B.very...it C.so...them D.so...it 解析 因為句中有that,所以前面用so,構成so……that從句，而question是單數，用代詞it，故選D。

例2 It was ______that he had to ask for help.A.such big work B.so big a work C.so a big work D.such big job 解析 work是不可數名詞，指工作或工程，故選A。

例3 He won't believe it ________ he sees it with his own eyes.A.when B.after C.until D.as soon as

解析 此句是not……until,“直到……才”。故答案選C。例4 I'll go _____ with you _______ next Sunday.A.hunting...when I will have time B.to hunt...until I'm free C.boating...if I have nothing to do D.to boat...as I will not be so busy

去打獵、劃船常用go hunting, go boating，所以應在A和C中選擇，又因為when和if在句中引導狀語從句時，要用一般現在時表示將來，故選C。

例5 It's almost three years _________ I last saw her.A.since B.when C.that D.after 解析 本句表示自從上次見到她幾乎有三年了，句型It's+時間段+since從句(過去時)，故選A。

【選講例題】

用所給動詞適當形式填空

例6 I'll go to Shanghai if I _______(have)time tomorrow.And I want to know if you ________(have)time to go with me.解析 第一句中if是“假如”的意思引導狀語從句，要用一般現在時表示將來時，第二句中if是“是否”的意思，引導賓語從句，仍用將來時。例7 —Could you tell me when he ________(return)home next week? —Sorry, I can't.But I will ring you up when he _________(return)home.解析 第一句中的when意思是“什么時候”，引導賓語從句用將來時態，第二句中的when是“當……時”的意思，引導時間狀語從句，用一般現在時表示將來。

【課內追蹤練習】 單項選擇

()1.Jack was tired _______he played tennis all afternoon.A.if B.as soon as C.because D.before()2____ he finished his work, he left hurriedly.A.As soon as B.In order that C.Until D Since()3._____the rain has stopped, let's start again.A.For B.Because C.Since D What()4.He started early ______ he could get there before nine.A.so that B.because C.so as to D.in order to()5.They waited ____ it was dark outside.A.since B.until C.so D.while

【復習小結】

1.牢記引導各類狀語從句的連詞及它們的不同意義和作用。2.注意區別when（什么時侯）引導賓語從句、（當……時）引導狀語從句；if（是否）引導賓語從句、（假如）引導條件狀語從句； so……that、so that、such……that 3.注意用一般現在時表示將來的幾種句式。

一、單項選擇

()6.Mike is _____ boy that we all like him.A.a good so B.so good a C.a such good D.such good a()7.It was ______that they wanted to go for a picnic in the country.A.such a fine weather B.so fine a weather C.a fine weather so D.such fine weather()8.Ships are______ than planes that few people take them on business.A.too much slower B.very much slower C.so much slower D.much more slower()9.They had started harvesting rice ______ the rain began.A.after B.before C.since D.as

二、在下列各句中填入適當的狀語從句連詞，使句子意思完整、通順 10 I will tell you the secret_____ you don't tell anyone else about it.11 Mary always takes a seat in the first row ____________she can hear better.12.We didn't notice anything wrong with the computer _________we started using it.13.The young doctor was a bit worried ___________ it was his first time to operate on a patient.14 The elephant has ______strong a body _______it can do heavy work for people.15.It is _______ a difficult problem _______ nobody can work it out.三、句型轉換 Use your head, then you'll find a way._____ you use your head, you'll find a way.17 I went to bed after my father came back home yesterday.I ________ go to bed ______ my father came back home yesterday.18 The island is so beautiful that it can attract large numbers of people.The island is beautiful ______ ____ attract large numbers of people.19 My dress is more expensive than Lily's.Lily's dress is ____ ____ expensive as mine.My sister is so young that she can’t go to school.My sister is _____ young _______ go to school.

第五篇：初中英語知識點總結：時間狀語從句

在復合句中，由時間連接詞引導的狀語從句叫做時間狀語從句。時間狀語從句通常由when, while, as，after,before,since,until等詞引導。

一、時間狀語從句種類

1、引導的從句表示主從句的動作同時發生，或從句的動作在主句之前。when引導的從句的謂語動詞可以是延續性的動詞，又可以是瞬時動詞。例如：

When she came in, I stopped eating.她進來時，我停止吃飯。(瞬時動詞)

When I lived in the countryside, I used to carry some water for him.當我住在農村時，我常常為他擔水。（延續性的動詞）

We were about to leave when he came in.我們就要離開，就在那時他進來了。

2、While引導的從句的謂語動作必須是延續性的，并強調主句和從句的動作同時發生（或者相對應）。并且while有時還可以表示對比。例如：

While my wife was reading the newspaper, I was watching TV.(was reading是延續性的動詞，was reading和was watching同時發生)

I like playing football while you like playing basketball.我喜歡踢足球，而你喜歡打籃球。（對比）

3、As表示“一邊……一邊”，as引導的動作是延續性的動作，一般用于主句和從句動作同時發生；as也可以強調“一先一后。例如：

We always sing as we walk.我們總是邊走邊唱。（as表示“一邊……一邊”）

As we was going out, it began to snow.當我們出門時，開始下雪了。（as強調句中兩個動作緊接著先后發生，而不強調開始下雪的特定時間）

4、由before和after引導的時間狀語從句，表示兩個動作一前一后發生。例如：It will be four days before they come back.他們要過四天才能回來。

After you think it over, please let me know what you decide.你仔細考慮過以后，告訴我你是怎樣決定的。

5、由till或until引導的時間狀語從句。till和until一般情況下兩者可以互換，但是在強調句型中多用until。并且要注意的是：如果主句中的謂語動詞是瞬時動詞時，必須用否定形式；如果主句中的謂語動詞是延續性動詞時，用肯定或否定形式都可以，但表達的意思不同。till不可以用在句首，而until可以放在句首。例如：

I didn't go to bed until（till）my father came back.直到我父親回來我才上床睡覺。

I worked until he came back.我工作到他回來為止。

6、由since引導的時間狀語從句表示“自從……以來”。

I have been in Beijing since you left.自從你離開以來，我一直在北京了。

7、由as soon as引導的時間狀語從句表示“一……就”。例如：

As soon as I reach Canada, I will ring you up.我一到加拿大，就給你來電話。

二、時態問題

在狀語從句中，有“主將從現”的規定，即主句用一般將來時，從句用一般現在時表示將來時。例句： I will call you as soon as I arrive in Beijing.我到北京就將給你打電話。（這是由as soon as引導的時間狀語從句，從句中的謂語動詞arrive是一般現在時，表示一般將來時，決不可用will arrive）常見考法

對于時間狀語從句的考查，多以單選和完形填空的形式，從連詞的意義角度讓大家選擇連詞，或從時態的角度設題，考查學生靈活運用的能力。典型例題：I'm sure he will jump up when he the good news.A.know B will know C.knows D knowing 解析：本題考查學生時間狀語從句的時態問題。時間狀語從句中，主句若是一般將來時，從句應用一般現在時表示將來時。從句的主語是單三人稱，所以排除 A。

答案： C 誤區提醒

When既可以引導時間狀語從句，也可以引導賓語從句，辨別它在這兩種從句中的時態是我們經常容易出錯的地方。

典型例題：I don’t know when he next week.when he , please let me know.A.comes, comes B.will come, will come C.will come, comes D.comes, will come 解析：第一句話“我不知道他下周什么時候來”，when引導賓語從句，表示將來時，就用一般將來時will come；第二句話“當他來的時候，請讓我知道”，when引導時間狀語從句，用一般現在時表示將來時，所以用 comes。答案： C