定义——在复合句中由从句表示的状语称作状语从句，状语从句由从属连词引导，也可以由一个起连词作用的词组引导，有时甚至不需要连词而直接和主句连接起来。
类型——时间、地点、原因、结果、条件、目的、让步、方式、比较状语从句。
1.引导词when, while, as, as soon as, once, before, after, every time, each time, since, whenever, ever since, until ,till等。
2.whenever, each time, every time的用法。注：whenever=no matter when
every time / each time 每次，whenever 每当······时，表示习惯性、经常性的动作。
Whenever we met with difficulties, they came to help us.
Each time he came to town he would visit our school.
Eevery time I went to his house, he was out.
注：whenever=no matter when
whenever既可以引导时间从句也可引导名词性从句，no matter when只可以引导时间状语从句。
It does not matter whenever the party begins.
3.before的汉英表达
1）before的基本含义是“在·····以前”
The train had left before he got to the station.
注意：与before对应的是after引导的时间状语从句，表“在·····之后”。
2）强调从句动作发生的晚或慢，before可译成“（后）·····才”
句型：It was + 时间段+ before·····It will be + 时间段+ before·····
It seemed long time before my turn came.
It was a long time before I got to sleep again.
It will be five years before we meet again.
3)主句中谓语动词是否定形式，before可译成“就”、“便”、“快”
句型：It was not +时间段+ before ····
It won’t be + 时间段+ before ····（从句谓语动词用一般现在时）
It was not long before he got to know it.
It won’t be long before we get promotion.
4)强调在从句动作发生之前，主句动作已经发生，before可译成“还没有····就”
Before I could say a single word, he ran away.
4.when, while, as 的用法及区别
1）when表示“当····的时候”
从句中既可用延续性动词，又可用点动词，可表示动作，又可表示状态。从句中的动词既可和主句的动作同时发生，又可在主句的动作之前或之后发生。
I met Tom when I was walking along the street.
1)如果when 从句的主语与主句主语相同，谓语又是be动词，从句主语和be可以省略。
When (you are) in trouble, ask me for help.
2）当when从句主语与主句主语相同时，用when加分词可以代替状语从句。
When ( I am) sleeping, I can never hear anything.
2.as 表示“当····时”、“一边····一边”、“随着”
1)表示“当····时”、“与····同时”，指从句的动作未结束，主句中的动作就已发生。从句中多用动态动词，而不用be动词或表示感觉、理解、知道这类动词。
As he was eating his breakfast , he heard the door bell ringing.(强调同一时间)
2）用于平行的动作中，表示“一边····一边····”，常指一个主语同时进行两个动作。
The students took notes as they listened.
3)表示“随着····”，常指两种正在发展或变化的情况。
As spring warms the good earth, all flowers begin to bloom.
3.while表示“在····的时候”、“在····期间”
它强调主句的动作与从句的动作同时发生或强调主句表示的动作持续于while所指的整个时间内。While 从句中必须是延续性动词。
I was reading the book while he was watching TV.
1)如果主句的动作在从句的动作过程中发生，从句常用进行时。
While we were swimming, someone stole our clothes.
2)如果主句和从句主语相同，while加现在分词可代替状语从句。
While discussing the matter, they got very excited.
3)while有时还有对比的含义，意为“然而，却”。
While I was reading, he was playing.
注意：1.表示主句的动作发生在从句的较长动作过程中，用when,while, as。
He was fond of swimming when (while) he was yet a child.
As he was a child, he was fond of swimming.
2.从句中为be动词时，多用when 和while.
Don’t talk too much when (while) you are eacting.
3.谈论两个同时进行的长时间动作可用while。
While he is in the office, he is always serious.(严肃的)
4.谈论两个平行动作或两种状态变化多用as。
The students rose as the teacher entered the classroom.
5.till和untill的用法。
在肯定句中表示“直到····为止”，主句需用延续性动词。在否定句中表示“直到····才”，主句常用点动词。1）till一般不用于句首
Let’s wait till the rain stops. Don’t wake him till midnight.
2)until when疑问句中，untill要放在句首
——Until when are you staying here ?
——Until next Tuesday.
注意：当until引起的状语修饰动词肯定式时，动词常是延续性动词；反之，修饰动词否定式时，动词常是点动词。
3）否定句可用另外两种句式表示
Not until ····放在句首，主句用倒装。
Not until it was dark did he come back.
It is not until ···that ···强调句型。
It wasn’t until I began to work that I realized how much time I had wasted.
6.since（自从）,ever since(自从)的用法
since表示自过去的一个起点时间到目前(说话时间)为止的一段持续时间。主句一般用现在完成时，从句用一般过去时。
I have known her since I have lived here.
He has been ill ever since.他自那以后一直生病。
句型：It is / has been + 时间段+since····(一般过去时)
It is 10 years since he lived here.
7.表示“一····就····”的结构
Hardly / scarcely ····when , no sooner ···· than, as soon as, the minute, the momemt, directly, immediately 都可以表示“一····就····”的意思。
I had hardly / scarcely got home when it began to rain.=I had no sooner got home than it began to rain.= As soon as I got home, it began to rain.
The old worker recognized the type of the machine directly he saw it.
注意：如果hardly, scarcely 或no sooner置于句首，主句必须用倒装结构。
Hadly had I got home when it began to rain.= No sooner had I got home than it began to rain.
The performance had hardly begun when the lights went out. = Hardly had the performance begun when the lights
分为两大类：
真实条件句——当从句所表达的条件是有可能实现的、是真实的条件时，用真实条件句。
If it rains tomorrow, we won’t hold a sports meeting on the playground.
If I have time, I will come to help you.
非真实条件句——当从句所表达的条件是不可能实现的、与客观事实完全相反的条件或假设时，用非真实条件句。
If I had known the answer at that time , I would have told him.
1.if, unless和if···not用法
条件状语从句可以由if, unless等词或词组引导。Unless在意义上相当于if···not。
If I had enough money, I would buy it.
You will fail unless you study hard. = You will fail if you don’t study hard.
You won’t be late unless he is ill. = He won’t be late if he is not ill.
注意：虚拟条件句中可用if···not,但不能用unless。
If she were not too silly, she would understand.
2.引导条件状语从句的其他连词
in case 万一，so / as long as 只要，as / so far as 就···而言，on condition that 条件是····，suppose假设，supposing假设等。
Send us a message in case you have any difficulty.
You may stay here as long as you keep quiet.
We will let you use the room on condition that you keep it clean and tidy.
Suppose the plane is late?= What if ( What will happen if ) the plane is late?
注意：on condition that 从句只位于主句后。
Suppose / supposing往往仅用在问句中。
Suppose / supposing we can’t ge enough food, what shall we do ?
3.if后的主谓可以省略
If possible, I would lke to have two copies.= if it is possible, I would like to have two copies.
注意：当主句是一般将来时，条件句要用一般现在时。
1.引导词as, because, since, now that, considering that , seeing that等。
2.because引导的原因状语从句
Because不能与so 连用，但可与therefore, consequently 连用。
3.seeing that 引导的原因状语从句
Seeing that quite a few people were absent, we decided to put the meeting off.
4.because与for的区别
For是并列连词，表示因果关系时，可用because替换，不同是：because引导的从句位置可在主句之前或
之后，而for分句只能后置。另外，当for用于推断或猜测（常有must be, must have done 结构）时，不能用because替换。
It must have rained last night, for the ground is wet now.
5.在it is / was ···that···的强调结构中
1.引导词that , so that, for fear that以便，in case等，这类从句中常常用情态动词may/might, can/could,should等，以保证语气通顺自然。
He wrote the name down for fear that / lest he should forget it.
They do exercises every morning so that they might be healthy.
注意：目的状语从句中一般用情态动词或“should+动词原形”，或省略should。
The students study hard so that they they may pass the exam.
2.in case, lest , for fear that引导的目的状语从句。
动词可以用虚拟语气，形式为（should）+ 动词原形，也可以不用虚拟语气，用动词的一般现在时或一般过去时。
You had better leave the key at home in case one of us should think of / thinks of coming back.
1.引导词that, so that , so···that, such···that。
I am really tired that I can not stand.
2.so与such的用法
1）当名词前有many, much, few, little(少)修饰时，要用so而不用such
I have had so many falls that I am black and blue all over.
He did so much work that he was really tired.
有时为了表示强调，so位于句首，这时后面跟动词的倒装形式。
So terrible was the storm that whole roofs were ripped off.
3.such的位置
1）与不定代词any, all, no, few, some, several等连用时，放在不定代词后。
All such possibilities must be considered.
Several such mistakes affect the whole composition.
2)与不定冠词连用放在不定冠词前。常用结果状语从句句型：
so + 形容词/副词+that 从句。They were so absorbed that we didn’t disturb them.
so + 形容词+a/an+单数可数名词+that 从句。It was so beautiful a night that I wanted to walk.
such a/an + 形容词+单数可数名词+that 从句。It is such a good chance that we must not miss it.
such+形容词+复数可数名词/不可数名词+that从句。
There are much lovely birds here that many children come to see them.
注意：They are such little children that they don’t kown that.
He had so little education that he didn’t know that.
在词组such little children中，little表示“小”，修饰名词children，不是表示“少”，所以用such;而词组so little 表示“少”，so修饰形容词little。
1.引导词although, though,however,whatever,whoever,whomever,whichever,whenever,wherever, whether,no matter(who, what,where,when ,etc.) even if, even though。
We won’t be discouraged even if / even though we fail ten times.
No matter what you do, don’t touch this switch.
However rich people are, they always seem anxious to make more money.
2.as 引导的让步状语从句
连词as也可以引导让步状语从句，但从句中要用特殊语序。
Young as he is, he knows a lot.= Though he is young，he knows a lot.= Young though he is, he knows a lot.
注意：though也有同as一样的用法，可以替代as，但although没有这种用法。
表语为名词时，前面通常不用冠词。Child as he was, he knew that what was the right thing to do.
表语为形容词修饰的名词时，要用冠词。
A young child as he is, he knows how to please others.
3.even if , even though引导的让步状语从句even if, even though即使，表示让步，语气最强。
We will make a trip even though/even if the weather is bad.
4.though 和although引导的让步状语从句
Though和although不能与but连用，但可与still和yet连用。
Though it is hard work, I still enjoy it.
Although it was very cold, yet he went out without a cap.
5.whether ···or引导的让步状语从句
Whether he drives or takes the bus,he will be here on time.
6.despite和in spite of 的用法
Despite / In spite of the bad weather, they had a wonderful holiday.
In spite of having no qualifications he got the job.=He got the job in spite of having no qualifications.
Despite the severe weather conditions all the cars completed the course.
7.no matter+疑问句或疑问句+后缀ever用法
no matter what=whatever no matter who=whoever no matter when=whenever
no matter where=wherever no matter which=whichever no matter how=however
However/No matter how expensive it may be, I will take it.
注意：no matter 不能引导名词性从句
Don’t let them in , whoever/no matter who they are.
Whatever you do, don’t tell him that I told you this.
Whatever you say is of no importance now.
1.引导词as 按照，与···一样, as if仿佛, as though.仿佛
I must do as my parents tell me to.
2.as if / as though由.as if / as though引导的方式状语从句可用虚拟语气
1.引导词as···as, not so/as ···as,than, the more ···the more···,more···than, the most···in/of···等。He got up earlier than I did.
2.同等状况的比较He studies as hard as you. He doesn’t study as hard as you.
3.不同层次的比较
I know you better than she.
There are more than one hundred people in the hall.
The more he learns, the more he wants to learn.
This is the most comfortable chair of the three.
4.形容词和不定式或动名词连用时的比较
通常两者都可使用，但动词不定式常常用于特定的动作，动名词则用于一般情况。
It will soon be more difficult to get a visa than it is now.
Getting a visa will soon be more difficult than it is now.
5.动词原形与would rather / sooner 连用
Most people would rather work than starve.
where在···的地方，wherever无论哪里，everywhere / anywhere任何地方
状语从句精练100题
1. I am to stay______ my mother______ well.
A. untill; gets
B. until, get
C. when; gets
D. before; will get.
2. Li Ming was about to do his homework______ the phone rang.
A. while
B. when
C. as
D. after
3. I have never been to Beijing______ I went to university.
A.when
B.before
C.as
D.since
4. It was not long______the writer finished his novel. A. when B. after C. before D. until
5. We shall go swimming______we have time.
A.whenever
B.wherever
C.howerver
D.whatever
6. -Where should I put my dictionary? -Put it______ you can easily get it.
A.so that
B.where
C.which
D.in order that
7. -I'd like a suitcase to use in college, father, -OK. I'll buy one for you______ I have done my work.
A.before
B.since
C.so that
D.the monent
8. I would like to do it______I like it. A.since B.because of C.because D.now that
9. ______it is raining,we had better take a taxi.
A.As
B.For
C.Because of
D.When
10. His speech made______deep impression on the audience that they could hardly forget it.
A.so a
B.such a
C.so
D.such
11. We must do the experiment______the teacher does. A.whatever B.as C.how D.when
12. The book is______it gives a wrong idea of the fact.
A.so writing that
B.such written that
C.such writing that
D.so written that
13. We started so early______we could get there before that sun set.
A.in order that
B.in order to
C.so as to
D.for
14. -Could you tell me______you will get my trousers ready? -Yes.In half a month.
A.how
B.when
C.how soon
D.how long
15. I know nothing about it______he told me. A.unless B.until C.except D.if
16. I won't join you______you invite me. A.if B.or C.until D.unless
17. Give me your telephone number______I need your help.
A.in case
B.whether
C.unless
D.so that
18. -Did you answer Smith's call? -I don\'t have to______I'll see him tomorrow.
A.though
B.because
C.otherwise
D.unless
19. The number of the people present,______we had expected,was very large.
A.that
B.which
C.who
D.as
20. ______I like it very much,I won't buy it. A.Although B.As though C.As D.If
21. ______he came to see me,he would phone me first.
A.When
B.Whenver
C.As
D.While
22. I'm working in the burning sun,______he is sleeping in the shade.
A.when
B.because
C.as
D.while
23. The work was completed earlier______.
A. than we expected
B. as we expected
C. than we had expected
D. like we expected
24. ______had he hurried into the cave______ it began to pour down.
A. No sooner; when
B. Hardly; when
C. Hardly; than
D. As soon as; when
25. ______,so the sports meet has to be put off.
A.Because of the bad weather
B.Because it was been raining for days
C.Since the weather has been bad
D.It has been raining for days
26. I had to borrow some money______I could buy a new car.
A.so that
B.in order to
C.because
D.since
27. I will keep studying______I live. A.when B.so long as C.as soon as D.on conditon
28. ______it was late,she went on working. A.Because B.Since C.Though D.Whether
29. You will be late for the meeting______you take a taxi. A.until B.and C.or D.unless
30. I thought her nice and honest______I met her.
A.the first time
B.for the first time
C.every time when
D.by the time
31. ______the day went on,the weather got worse. A.With B.Since C.As D.While
32. He was doing his homework______he saw the teacher passing by his window.
A.while
B.when
C.as
D.which
33. Is it three years ago______he was put into prison? A.that B.since C.when D.before
34. Though he failed in the exam,______he didn\'t give up.A.but B.and yet C.yet D.still
35. Tom was______that he couldn\'t understand______difficult sentence.
A.so a stupid boy;such a
B.a so stupid boy;a such
C.so stupid a boy;a such
D.so stupid a boy;such a
36. ______you\'ve understood all these rules,you'll have no further difficulty.
A.Unless
B.Once
C.Although
D.Until
37. ______,he speaks Japanese quite well.
A. Child as he is
B. Though is he child
C. As a child he is
D.A child as he is
38. ______we got on the bus, it started to move.
A.Short after
B. Before long
C. Soon after
D. After a while
39. The cost of one day in the hospital can run as_____ as 500 dollars.
A.lower
B.much
C. expensive
D. high
40. ______,he works just as hard as everyone else.
A. Because he is weak
B. Weak as he is . Though weak he is D. As he is weak
41. He thinks more of others______.
A.than of himself
B.than of him
C.than himself
D.than he
42. ______the rain has stopped,let's start again.
A.For
B.Because
C.Now that
D.That
43. Mr.Smith is a warm-hearted person.He helps me______I ask him to.
A.whatever
B.whenever
C.only
D.however
44. It is five years______I joined the army. A.when B.that C.whose D.since
45. ______what may happen,I will stand by your side.
A.No matter
B.Perhaps
C.Although
D.Even if
46. Time passed quickly and three weeks went by______we knew it.
A.after
B.when
C.before
D.till
47. ______there is a will,there is a way. A.When B.Where C.That D.While
48. John's mother allowed him to go swimming______that he didn\'t go too far from the bank.
A.if
B.unless
C.when
D.on condition
49. You'll be punished______you obey the order. A.unless B.if C.when D.though
50. ______we help people,______we'll be.
A.more;happy
B.The more;the happy
C.The more;the happier
D.More;the happier
51. You may do______you please. A.when B.as C.if D.that
52. It is so hot______I don't go out today. A.that B.when C.as D.which
53. It is raining heavily______they still want to go out. A.though B.because C.but D.so
54. ______we study hard,we'll succeed sooner or later.
A.Though
B.When
C.Once
D.As long as
55. I'll go on with the work____ I come back tomorrow.A.as B.when C.whenever D.unless
56. We shall go___working conditions are difficult.A.where B.there C.when D.to the place
57. I know the reason______he came so early. A.that B.when C.why D.for
58. They started early______they might arrive in time. A.so B.in order to C.for D.that
59. Take more rest______you want to get well soon. A.unless B.if C.though D.even if
60. Leave a basin of water outside in freezing weather,______it will soon be covered with ice.
A.and
B.or
C.but
D.as
61. We had to be patient.It would be some time______we got the full result.
A.since
B.that
C.before
D.after
62. It was May 4th______my parents left for Shanghai. A.when B.since C.until D.after
63. It was______she was about to speak that the door opened.
A.that
B.when
C.what
D.because
64. ______jouralism seems like a good profession,I would prefer to be a teacher.
A.No matter
B.Now that
C.Even
D.Although
65. His eyes were closed,so I said nothing,but put the chair______he would see me______he woke.
A.when;when
B.where;where
C.when;where
D.where;when
66. ______physics,he likes maths better.
A.As he much likes
B.Much likes as he
C.Much as he likes
D.Likes much as he
67. We'll carry the fight to the end______happens.
A.whatever
B.no matter which
C.no matter how
D.anything
68. ______she hasn't got anything against you.
A.As long as I know
B.So long as I know
C.I know so far
D.As far as I know
69. Fire safety in family houses,______most fire deaths occur,is difficult to achieve.
A.why
B.where
C.how
D.when
70. _____the pain was bad,______he did not complain.
A.Although;but
B.Though;but
C.Though;yet
D.Even;still
71. I am going______you went last week.
A.where
B.whererver
C.when
D.the place
72. ______you get into the habit of smoking,you won\'t be able to give it up easily.
A.While
B.Once
C.Because
D.Since
73. Try to guess the meaning of a new word while reading______your reading skill can be improved. A.when B.before C.until D.so that
74. Hurry up,______we won't catch the last bus. A.unless B.but C.otherwise D.then
75. -How are you,Harry? -Fine,______a bit tired. A.but B.or C.and D.so
76. ______he spoke,we recognized his voice.
A.At the moment
B.The moment
C.For the moment
D.The moment while
77. ______invited I won’t go to her birthday party. A.Even B.When C.If D.Even if
78. Don't speak______.
A.when speak
B.after spoke
C.until spoken to
D.while speaking
79. These two weeks they have planted______they did during the same period of last month.
A.as much twice trees as
B.twice as many trees as
C.twice as much trees as
D.as many twice trees as
80. They were______busy studying______they couldn\'t go to the restaurant with us.
A.so;that
B.such;as
C.very;that
D.enough;as
81. It was not ____ he took off his dark glass ____ I realized who he was.
A. when; that
B. until; when
C. when; then
D. until; that
82. ____ he is very good at numbers.
A. As he is a small boy
B. A small boy he is
C. A small boy as he is
D. Small boy as he is
83. ____ Newton started to do experiments, he forgot about the time.
A. When
B. Once
C. If
D. As
84. ____ hard I tried, I still couldn’t manage it.
A. No matter
B. However
C. Although
D. Though
85. We young people should go ____ the Party wands us to.
A. no matter where
B. to the place
C. to any place
D. wherever
86. Make a mark ____ you have any questions.
A. which
B. in which
C. what
D. where
87. ____ time went on, the weather got colder and colder.A. With B. Since C. While D. As
88. Sorry I haven’t been able to do ____ I should.
A. as many as
B. as much as
C. as far as
D. move than
89. You’ve done much better ____ expected.
A. as
B. than
C. more than
D. such as
90. Everything returned to normal ____ nothing had happened.
A. as if
B. because
C. when
D. for
91. Take an umbrella with you ____ it should rain.
A. in no case
B. in the case
C. in case of
D. in case
92. So ____ that no one could catch up with him.
A. did he run quickly
B. he ran quickly
C. quickly did he run
D. quickly he ran
93. ____ so we had to walk home.
A. There being no buses
B. Being no buses
C. As there were
D. There were no buses
94. Hardly ____ come into the room ____ the meeting began.
A. had they; when
B. they had; when
C. did they; than
D. they did; then
95. I wrote down his name and address ____ I should forget it.
A. in order that
B. for fear that
C. so that
D. since
96. Although she did not know Boston well, she made her way ____ to the Home Circle Building.
A. easy enough
B. enough easy
C. easily enough
D. enough easily C。
97. A typhoon swept across this area with heavy rains and winds ____ strong as 113 miles per hour.
A. too
B. very
C. so
D. as 选D。
98. It was raining heavily. Little Mary felt cold so she stood ____ to hr mother.
A. close
B. closely
C. closed
D. closing 选A。
99.If it ___ sunny tomorrow, I ____ boating. A. is go B. will be, go C. is, will go D. will be, will go 100.----what will you do if it ______ tomorrow, ----I'll stay at home and watch TV.
A. rain
B. rains
C. will rain
D. is raining
参考答案1-10 ABDCA BDCAB 11-20 BDACB CABDA 21-30 BDCBD ABCDA 31-40 CBACD BACDB 41-50 ACBDA CBDAC 51-60 BACDB ABDBA51-70 CABDD CADBC 71-75 ABDCA 76-80BDCBA
状语从句考点+例题_全面解析（word） 一、初中英语状语从句 1．一What will you do then? 一I will telephone the police and complain about it the noise stops soon. A．unless B．though C．because D．if 【答案】A 【解析】 【详解】 句意：----那么你会怎么做？-----我会给警察打电话投诉，除非噪音很快停止。考查连词辨析。A. unless除非，如果不，引导否定的条件状语从句；B. though虽然，尽管，引导让步状语从句；C. because因为，引导原因状语从句；D. if如果，引导条件状语从句。根据句意可知后句表示否定条件，填unless；选A。 2．Tony has had to cook by himself ________ his mother went on business to Guangzhou. A．since B．after C．during D．when 【答案】A 【解析】 【详解】 句意：自从妈妈去广州出差以来，托尼不得不自己做饭。A. since从……以来；B. after在……之后；C. during 在……期间；D. when当……时候。since后跟时间状语从句时，表示的是到目前为止的时间段，从句时态为一般过去时，而主句的时态为现在完成时，故正确答案为A。 3．___________ she couldn’t see his face, she could tell by his voice that he was young. A．Unless B．If C．Because D．Though 【答案】D 【解析】 【详解】 句意：虽然她看不见他的脸，但是她能够通过声音分辨出他很年轻。A. Unless除非；B. If 如果；C. Because因为；D. Though尽管。根据语境以及上下文，本题考查的是连词的用法。结合句意可知，在这里两个句子之间存在一个相反的让步关系，though/although/even though"虽然；尽管"，引导让步状语从句，符合句意。故答案选D。 4．If the kids stay indoors all the time and get no exercise, they _________ weak.
中考英语状语从句专项训练及答案及解析 一、初中英语状语从句 1．It’s much easier for us to become friends________ we share similar interests. A．unless B．when C．even though D．so that 【答案】B 【解析】 【详解】 句意：当我们分享相似的兴趣爱好时，对于我们来说成为朋友更加容易一些。 考查连词。unless如果不，除非，引导条件状语从句；when当……时候，引导时间状语从句；even though尽管，引导让步状语从句；so that以便，因此，结果，引导目的或结果状语从句。根据句意可知此句表示时间，故填when，选B。 2．---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A．since B．unless C．when D．until 【答案】B 【解析】 试题分析：句意：----你想要明天和我们一起去划船吗？好的，如果我不忙我就去。A自从；B如果不；C当……时候；D直到……才。根据句意，应选B。 考点：考查连词。 3．I still remember my first teacher________we haven't seen each other for many years. A．for B．because C．since D．though 【答案】D 【解析】 试题分析：句意：尽管我们很多年没有见过面了，但是我仍然记得我的第一位老师。此题考查连词，A因为；B因为；C自从；D尽管。根据句意，应选D。 考点：考查连词。 4．—The novel seems a little boring. —You won’t enjoy it _______________ you put your heart into it. A．when B．if C．after D．unless 【答案】D 【解析】 试题分析：句意：--这部小说似乎有点儿无聊。--如果你不用心读的话，你不会享受到这本书。when，当……的时候；if如果；after在……之后；unless，如果不，除非。结合句意，故选D。 考点：考查连词的用法。
状语从句解题技巧及练习测试题 一、初中英语状语从句 1．--Peter, please send us postcards we’ll know where you have visited. --No problem. A．but B．or C．for D．so 【答案】D 【解析】 句意：——彼得，请给我们及明星片，这样我们将会知道你参观过哪里。——没问题。but 但是，表示转折关系；or或者，表示选择；for为了，表示原因；so所以，表示结果。结合句意，前半句让彼得给我们及明信片，后半句知道彼得到哪里参观了，后一句是前一句的结果，故用连词so。故选D。 2．—I’m going to the post office. —________you are there, can you get me some stamps? A．When B．While C．Because D．If 【答案】B 【解析】 试题分析：A. As 一边…一边，作为 B. While当…时候 C. Because 因为 D. lf假如；句意：我将要去邮局。你去那里的时候，能不能给我带一些邮票呢？故选B 考点：连词 点评：连词在中考中涉及到的很多，尤其在宾语从句、状语从句、定语从句中连词是必考点。平时学习过程中，掌握连词的意思，及所表示的关系是至关重要的，这种关系的判断可以通过句子意思的理解来选择恰到的连词。 3．—Leonardo didn't win an Oscar he acted in The Revenant（荒野求生）. 一Yeah. It was hard for him to realize this dream, but he never gave up. A．after B．since C．when D．until 【答案】D 【解析】句意：——列奥纳多直到他在《荒野求生》中才获得奥斯卡奖。——是的。对他来说很难实现这个梦想，但他从不放弃。考查连词辨析题。A. after在……以后；B. since自从……；C. when当……时候；D. until直到……才，多和not连用。本句是时间状语从句，四个选项都可做引导词；根据Leonardo didn't win an Oscar和答语中的but he never gave up.，结合句意结构和语境，可知until符合句意，故选D。 4． 一Last night I went to a concert of Chinese folk music. Erquan Yingyue was so sad but beautiful that I sensed a strong sadness and pain under the beauty. 一So it was. The musician who played it last night to play the erhu since he very young.
中考英语状语从句考点归纳与例析 【重点讲解】 中考英语试题对状语从句的考查主要涉及引导状语从句的从属连词的用法。单项选择题的四个选项往往是四个连词，这是状语从句最常见的考查形式。另一个考点是状语从句中的时态，因此，在学习状语从句时要弄清状语从句的几个主要类别，如时间、地点、原因、条件、让步、方式、目的、结果等，同时记住它们的“引导词”及其相关意义。 考点一：引导状语从句的连词的选择。 1、引导时间状语从句的连词主要有when, while, as, by the time, before, after, since, till/until, as soon as等。其中when，while和as都可表示"当……时候"，但用法有区别: when意为"在……时;当……时",可表示"点时间"或"段时间",从句谓语可以是终止性动词,也可以是延续性动词。例如: When I got home, he was having supper. as意为"边……边……"或"与……同时",重在表示两个动作同时发生。伴随进行。as从句是终止性动词时,主句通常也必须是终止性动词。例如: They sang as they danced. while只可表示"段时间",从句谓语只限于延续性动词。例如: While I was sleeping, my father came in. 注意：从句谓语是持续性动词时,when，while和as可以互换。主、从句谓语都是终止性动词时，when与as可互换。从句谓语表示状态时，通常用while。 2、引导地点状语从句的常用连词是where。例如： Where there is a will there ia a way. 3、引导原因状语从句的连接词主要有because, as, since, for。例如： Tom was late for school this morning because he didn’t catch the early bus. As he was not well,I decided to go there without him. Since this method doesn't work, let's try another. for表示所说的理由是一种补充说明，因此, for引导的从句一般不放在句子的开头。例如: I decided to stop and have lunch, for I was feeling quite hungry. 注意：because语气最强，as, since, for次之。对于以why开头的问句，一般要用because引导的从句来回答。 4、引导条件状语从句的连接词主要有if, unless, as long as。例如： If I am not busy tomorrow, I will play football with you. Unless you tried it, you can’t imagine how pleasant it is. 5、引导让步状语从句的连接词有although, though, even if, even though。例如： Although (though) I gave him some advice, he didn’t take them.
中考英语状语从句专题(含答案) 一、初中英语状语从句 1．—I don ' t know if Sam tomorrow. —Don't worry. I will tell you as soon as he . A．will come; comes B．comes; will come C．will come; will come D．comes; comes 【答案】A 【解析】 【详解】 句意：——我不知道萨姆明天是否会来。——别担心，他一来我就告诉你。 第一个句子为if引导的宾语从句，根据从句中的时间状语tomorrow判断，从句的时态为一般将来时，排除B,D；第二个句子是as soon as引导的时间状语从句，遵循“主将从现”的原则，本句的主句是一般将来时，as soon as引导的从句要用一般现在时，故答案为A。 2．We don’t know the love of our parents ____________ we become parents ourselves one day. A．before B．until C．when D．after 【答案】B 【解析】 【详解】 句意：直到有一天我们自己成为父母，我们才知道父母的爱。考查连词辨析。before在……以前；until直到，和not连用表示“直到……才”；when当……的时候；after在……以后。本句是“not …until”结构；根据句意结构和语境，可知选B。 3．The nurse won’t leave her patients ______ she’s sure somebody else takes good care of them. A．if B．because C．since D．unless 【答案】D 【解析】 【详解】 句意：这个护士如果不确定其他人照顾她的病人，她不会离开他们。if如果，引导条件状语从句用一般现在时，主句用一般将来时；because因为，since自从，引导时间状语从句，主句用现在完成时；unless除非，如果不，引导条件状语从句用一般现在时，主句用一般将来时；结合句意，如果她不确定有人照顾病人，她不会离开。故选D。 4．__________ you have tried it on, you can’t imag ine how pretty the new style skirt is. A．Because B．Although C．Unless D．When 【答案】C 【解析】 本题的含义是如果你不尝试一下，你将不能想象一下这件新款式的裙子有多么漂亮，unless表示如果不的意思，故本题选C。
状语从句 1.在主从复合句中修饰主句中的动词，形容词，副词等的从句叫状语从句。可 分为，时间状语从句，地点状语从句，原因，目的，结果，条件，让步，比较和方式状语从句。 2.时间状语从句 起时间状语作用的句子； 可放在句首，句中和句尾 常用引导词：when，while, as, after, before, since, till, until, the moment, hardly … when , no sooner … than when, while, as的用法 1)when 用法最广，常可代替while和as, 在while 引导的从句中，动词只 能是延续性的 When the fire broke out, all the students were sleeping soundly. The telephone rang while I was taking a bath. 2)当两个表示时间延续的动作同时发生而又有对比意味的时候，用while， 在这样的复合句中，主句从句的时态通常是相同的。 Father was preparing a report while I was playing PC games. 3)常用as 的情况：一边…一边；表示随着短暂动作的发生，另一行为伴随 发生 As he talked on, he got more and more excited. until和till的用法 表示“一直到…”时，主句和从句都用肯定式； I will wait until/ till the concert is over. 表示“直到…才…”是，主句用否定，从句用肯定式。 They can’t go until Sunday. since的用法 since引导的从句中，如果是持续性动词，往往理解为某一状态的终止。 He has written to me frequently since he was ill. 自从他病好以来，他常写信给我。
状语从句 一、时间状语从句 1、when, while, as 和whenever when 表时间点，时间段 while 表时间段；有“而”的意思 as “当……”,“一边……一边”，“随着……” whenever 每当，无论什么时候 It is cold when it snows. While there is life, there is hope. While we were speaking, he was reading newspaper. Just as Mrs Richards was entering the dinning-room, there was a knock on the front door. As we age, we trade strength for ingenuity, speed for thoroughness, and passion for reason. 随着年龄的增长，我们用力量换来了机敏，以速度换来了严谨，以热情换来了理智。 注：1)when还可作并列连词，其意义为“那时，这时”，相当于and at this/that time。常用于下列句式： sb.was doing sth.when...某人正在干某事就在这时…… sb.was about to/ going to do sth.when...某人正打算干某事就在这时…… sb.body has just done sth.when...某人刚干了某事就在这时…… 2)如果主句表示的是短暂动作，而从句用延续性动词的进行时态表示在一段时间内正在进行的动作时，when，while 与as可互换使用。如： When/While/As I was walking down the street，I came across an old friend of mine. 2、before/ after It will be five years before we meet again.五年之后我们才能见面。 After you think it over, please let me know what you decide. After her husband had gone to work, she sent her children to school. 3、until, till, not...until 1)肯定句：主句的谓语是延续性动词，主从句均为肯定式，意为“某动作一直持续到某时间点才停止”
状语从句考点+例题_全面解析 一、初中英语状语从句 1．We all know that we won't enjoy good health ______ we often exercise. A．though B．if C．when D．unless 【答案】D 【解析】 【详解】 句意：我们都知道如果我们不经常锻炼，我们将不会享有好的健康。考查连词的用法。A. though虽然，尽管；B. if如果；C. when当......的时候；D. unless除非，如果不。根据句意：我们都知道如果我们不经常锻炼，我们将不会享有好的健康。只有D项符合题意。故选D。 【点睛】 主将从现是指在时间状语从句和条件状语从句中，如果主句是一般将来时，从句用一般现在时替代一般将来时。 常见的有以下四种情况： 一、条件状语从句的主句是一般将来时，那么从句常常用一般现在时 如：When I grow up, I’ll be a nurse and look after patients 我长大后要当一名护士，照顾病人 二、如果主句是祈使句，那么从句通常要用一般现在时 如：Don’t laugh at me when I make a mistake. 我犯错误的时候不要笑话我。 三、如果主句是含有情态动词的一般现在时，根据需要从句多用一般现在时 如：You should be quiet when you are in the reading room 在阅览室时应保持安静 四. 如果if的条件状语从句遇到变换间接和直接时 , 祈使句应用not to.... 如; She said not to close the window 常见的时间状语从句的连词有：as soon as,when,while ,as,until等。 2．—I’m going to the post office. —________you are there, can you get me some stamps? A．When B．While C．Because D．If 【答案】B 【解析】 试题分析：A. As 一边…一边，作为 B. While当…时候 C. Because 因为 D. lf假如；句意：我将要去邮局。你去那里的时候，能不能给我带一些邮票呢？故选B 考点：连词 点评：连词在中考中涉及到的很多，尤其在宾语从句、状语从句、定语从句中连词是必考点。平时学习过程中，掌握连词的意思，及所表示的关系是至关重要的，这种关系的判断可以通过句子意思的理解来选择恰到的连词。
中考英语状语从句专题训练答案及解析 一、初中英语状语从句 1．—Tom wants to know if you ___ a picnic next Sunday. —Yes. But if it ___， we'll visit the museum instead. A．will have; will rain B．have; rains C．have; will rain D．will have; rains 【答案】D 【解析】 试题分析：句意：汤姆想知道下周你是否要去野餐。——是的，但是如果下雨，我们就会去参观博物馆。结合语境可知上文是宾语从句，描述的是将来发生的动作，故用一般将来时态。下文是条件状语从句，当主句为一般将来时态时，条件状语从句中用一般现在时态表示将来的动作，结合语境可知选D。 考点：从句中的时态 点评：英语宾语从句的时态和主句没有必然的联系，需结合语境进行具体分析。而英语状语从句的时态与主句有比较紧密的联系，若主句为一般将来时，时间和条件状语从句通常要用一般现在时表示将来，而不能直接使用将来时态。 2．---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A．since B．unless C．when D．until 【答案】B 【解析】 试题分析：句意：----你想要明天和我们一起去划船吗？好的，如果我不忙我就去。A自从；B如果不；C当……时候；D直到……才。根据句意，应选B。 考点：考查连词。 3．--- Do you know what time Daniel Xuzhou tomorrow? ---At 2:00 p. m. I will meet him when he at the airport. A．gets to; arrives B．will get to; will arrive C．will get to; arrives D．gets to; will arrive 【答案】C 【解析】 句意：——你知道丹尼尔明天什么时候去徐州吗？——下午2:00点。当他到达机场时我将与他会面。第一句是what time引导的宾语从句，主句是一般现在时，从句时态不受限制，结合tomorrow用一般将来时will+动词原形；第二句是when引导的时间状语从句，遵循主将从现的规则，所以从句用一般现在时，主语是he，因此是arrives；结合选项，故答案选C。 4．You will fall behind others ______ you work hard.
状语从句专项练习题及答案详解含答案解析 一、初中英语状语从句 1．Many college students go to West China to help local people, ______ they may find a good job in big cities. A．because B．if C．although D．after 【答案】C 【解析】 【详解】 句意：许多大学生去中国西部帮助当地人，尽管他们可能在大城市找到一份好工作。A. because因为；B. if如果；C. although尽管；D. after在……之后。句子Many college students go to West China to help local people和句子they may find a good job in big cities.之间存在着转折关系，因此选择although尽管；故选C。 2．I will go to the English club tomorrow I am too busy. A．since B．if C．unless D．until 【答案】C 【解析】 【详解】 句意：明天我将会去英语俱乐部，除非我太忙。since自从；if如果；unless除非，如果不；until直到…时候。根据句意可知，这里表示的意思是“如果我不忙，我会…”，故应选C。 3．Betty you the answer as soon as she works it out later. A．tells B．told C．will tell D．is telling 【答案】C 【解析】 【详解】 句意：贝蒂之后一算出来，她就会告诉你答案。 考查时态。tells告诉，一般现在时；told一般过去时；will tell一般将来时；is telling现在 进行时。as soon as表示“一……就……”。由as soon as引导的从句需要用一般现在时态代替将来时态，可知主句时态是一般将来时。故选C。 4．—Dear, I have an important meeting tomorrow. —It doesn’t matter. If you _______ go to the movie tomorrow, I _______ my friend to go with me. A．don’t; will ask B．won’t; will ask C．don’t; ask D．won’t; ask 【答案】A 【解析】 试题分析: 句意：亲爱的，明天我有个重要的会议。没关系，如果明天你不能去看电影，我
第章状语从句 学习指导 状语从句在句子中作状语，用来修饰主句或主句的谓语。一般可分为九大类,分别表示时间、地点、原因、目的、结果、条件、让步、比 较和方式。尽管种类较多,但由于状语从句与汉语结构和用法相似,所 以理解和掌握它并不难。状语从句的关键是要掌握引导不同状语从句的常用连接词。现分别列举如下: 状语从句分九类： 在这一章节的学习中，要求同学们掌握各类状语从句基本概念，并能够灵活应用。 第一节时间状语从句 时间状语从句用一般现在时表示将来。连接时间状语从句的连接词有：2．when，while，as均可表示“当……的时候”。 when强调“特定时间”，表示主句谓语动词的动作与从句谓语动词的动作是同时发生的，或从句的动作发生在主句的动作之前；while表 示的时间是一段，而不是一点，as多用在口语中，强调“同一时间”或“一前一后”，有时还有“随着”的含义。 When spring came, he felt like a trip.春天来了，他想去旅游。 As spring warms the good earth，all flowers begin to bloom．(as有“随着”的含义) as, when, while都表示主、从句的动作或状态同时发生，但三者也有
区别。as和when引导的从句既可表示一点时间，也可表示一段时间，从句中的谓语动词既可以是持续性动词，也可以为短暂性动词，经常可以互换使用；while引导的从句通常表示一段时间，从句中宜用持续性动词作谓语。当从句中的谓语动词为持续性动词时，这三者可以通用（前面例句中已有体现），再如： 1 / 18 Mother was worried because little Alice was ill, especially as / when / while father was away in France.妈妈担心，因为小艾丽思病了，特别是当父亲远在法国的时候。 如果从句和主句要表示一个人的两个动作交替进行或同时完成时，则多用as，可译为“一边......，一边......”。例如： He looked behind from to time as he went.他一边走，一边不时地往后看。 As time goes on, it's getting warmer and warmer..随着时间的推移，天气变得越来越暖了。 I thought of it just as you opened your mouth.你一张嘴我就知道你要 说什么。（若表示两个短促动作几乎同时发生时，用as的场合多于when.） 当主从句之间表示转折或对比关系时，多用while, 不用as或when。如：
【英语】状语从句考点解析（Word版附答案） 一、初中英语状语从句 1．He made a serious mistake, but he took immediate action to change that ______ it got worse. A．until B．when C．because D．before 【答案】D 【解析】 试题分析：句意：他犯一个严重的错误。但他采取行动来改变它以免变得更糟。A. Until直到；B. When当……时；C. Because因为；D. Before在……之前。在变得更糟之前采取行动改变。故选D。 考点：考查连词辨析。 2．---The two old friends were ____ busy ____ with each other that they forgot the time. ---Yes. They hadn’t met for over ten years, so they kept talking the whole night. A．too; to talk B．too; talking C．so; to talk D．so; talking; 【答案】D 【解析】 试题分析：句意:这两个老朋友那么忙于交谈以至于忘了时间。是。他们十年多没见到了，所以他们聊了一晚上。考查句式so…that…因此……以至于……;be busy doing忙于做……，故选D。 考点：考查so…that句式。 3．___________ she couldn’t see his face, she could tell by his voice that he was young. A．Unless B．If C．Because D．Though 【答案】D 【解析】 【详解】 句意：虽然她看不见他的脸，但是她能够通过声音分辨出他很年轻。A. Unless除非；B. If 如果；C. Because因为；D. Though尽管。根据语境以及上下文，本题考查的是连词的用法。结合句意可知，在这里两个句子之间存在一个相反的让步关系，though/although/even though"虽然；尽管"，引导让步状语从句，符合句意。故答案选D。 4．Pandas are facing danger!The situation won’t change humans stop killing. A．unless B．though C．if D．after 【答案】A 【解析】 试题分析：句意：熊猫面临危险。如果人们不停止杀害熊猫，形势不会改变。此题考查连词，A如果不；B尽管；C如果；D在之后。根据句意，应选A。 考点：考查连词。
中考专项训练状语从句经典例题 一、初中英语状语从句 1．________ I came back home yesterday, my mother was looking ________ a magazine. A．While; through B．When; through C．When; around 【答案】B 【解析】 【详解】 句意：昨天当我回到家的时候，我的妈妈正在浏览一本杂志。While当…时候，引导时间状语从句，从句中的谓语动词应该是延续性的；When当…时候，引导时间状语从句，从句中谓语动词可以是延续性的，也可以是瞬间性的；through穿过，通过；around周围。第一个空后came back是瞬间性动词，故不能用while引导，排除A。look through浏览；look around向四周看，根据句意可知应该是“浏览杂志”，故选B。 2．You won't succeed _____ you work hard A．if B．because C．unless D．so that 【答案】C 【解析】 【详解】 句意：你不会成功的，除非你努力工作。if如果；because 因为，引导原因状语从句；unless如果不，除非；so that以至于，引导结果状语从句；为的是，引导目的状语从句。根据句意可知，这里表示“如果不努力工作”，故应选C。 3．I won't go he comes back. A．until B．while C．when D．why 【答案】A 【解析】 句意：直到他回来，我才走。A. until 直到； B. while当---时候； C. when当---时候； D. why为什么；not---until--- 直到---才---；故选A 4．一When did you leave your office yesterday? 一 I finished the project. A．Until B．While C．When D．Not until 【答案】D 【解析】 句意：昨天你什么时候离开你的办公室的？——直到我完成那个任务。本题考查连词。A. Until 直到···时候才结束，要与延续性动词连用；B. While 当···时候；C. When 当···时候；D. Not until直到···时候才开始，与非延续性动词连用；句子中finished（完成）是非延续性动词，故选D
状语从句高考考点高考状语从句讲解 语法专题 状语从句 考点归纳 考点一：对when，while，as，since等词的辨析 when，while，as，since在引导时间状语从句时的区别可参见下表： 和从句动词所表示的动作或状态是同时发生的，它引导的从句用延续性动词，若从句中是非延续性动词，不能用while。 表示“一边……一边”的意思时用as或while。 As/While she was cooking she was singing songs、 She sang as she cooked、 当主句谓语动词表示短暂动作，而从句动作可以持续一段时间时，三个连词都可以用。 Tom poke his leg while/when/as he was playing football、注意： ① when也可用作并列连词，其意义为“就在那时，这时”，相当于and at this/that time，常用下列句式中： We were having a meeting when someone poke in、 We were about to set off on our way，when it suddenly began to rain、
He had just left the room when it rained、 另外when还可表示原因“既然”。 It was foolish of you to take a taxi when you could easily walk there in five minutes、 ②while除引导时间状语从句外，还可引导让步或条件状语从句及作并列连词连结两个并列的简单句。如：While he was respected，he was not liked、 There will be life while there is water and air、 He is a worker while I am a doctor、 since引导从句时在主句是现在完成时的条件下，从句若为非延续性动词的一般过去时，表示从该动作的完成时刻算起，因此动词的语法形式与词义一致，是肯定意义；若从句动词为延续性动词的一般过去时，表示动作或状态从最后一次发生到现在。因此其含义与动词的词义恰好相反，具有否定意义，若从句延续性动词用现在完成时，则动词的语法形式与词义一致，是肯定意义。 I haven”t heard from her since she left Beijing、 自从她离开北京后，我从未收到她的信。 I haven”t written to her since she lived in London、 自从她离开伦敦以后，我从未给她写信。 Since I have been at this school we have three headmasters、
中考英语状语从句专项练习(附答案) 一、初中英语状语从句 1．We don't know the love of our parents _______ we become parents ourselves one day. A．until B．after C．when D．since 【答案】A 【解析】 句意：直到有一天我们成为父母，才知道父母的爱。本题考查连词。A. until到…为止，在…以前; 直到…才;B. after在…以后;C. when当···时候；D. since自从; 从…以来; Not until 直到···才···；不到···不···，是固定搭配，故选A。 2．—I’m afraid the class has begun.—Don’t worry. It ________ until the bell ________. A．doesn’t begin; rings B．won’t begin; will ring C．won’t begin; rings D．doesn’t begin; will ring 【答案】C 【解析】 试题分析：句意：-恐怕课已经开始了。一不要担心。直到铃声响了才会开始。前面是主句，会议还没开始，所以用一般将来时；后面是until引导的时间状语从句，所以要用一般现在时代替一般将来时。所以选C。 考点：考查动词时态。 3．（题文）I’m sure that you will succeed in the end ___________ you give up halfway. A．until B．till C．unless D．although 【答案】C 【解析】 试题分析：句意：如果你不半途放弃，我肯定你最终会成功的。A. until直到，表示时间； B. till 直到，表示时间； C. unless如果不，除非，表示条件； D. although虽然，尽管。表示让步。如果不放弃，就会成功。故选C。 考点：考查连词用法辨析。 4．Rony will get a chance to work in this company ________ he doesn’t pass the interview. A．unless B．when C．if D．after 【答案】A 【解析】 【详解】 句意“除非罗尼没有通过面试，否则他将有机会在这个公司上班”。A.除非；B.当……时候；C.如果；D.在……时候。根据句意可知，表示“除非他没有通过面试”，故选A。
创作编号：BG7531400019813488897SX 创作者：别如克* 状语从句练习题 1. I had been looking for the book for two days____ I found it at last. a. until b. when c. before d. while 2. He punished his students ____ they did anything wrong. a. however b. whenever c. whatever d. whichever 3. Those passengers will wait here____ the bus arrives. a. until b. because c. though d. as 4. Hardly had we reached home ____ it began to rain. a. before b. than c. as soon as d. when 5. No sooner had we arrived at the cinema___ the film began. a. than b. before c. when d. as soon as 6. You can’t watch TV ____ you’ve finished your homework. a. since b. until c. as d. after 7. We had scarcely left our school____ the rain began. a. before b. than c. while d. when 8. We have never seen her again_____ she went to work in another city.
【初中英语】状语从句知识点题型 一、初中英语状语从句 1．He was so busy preparing for the high school entrance exam that . A．he had enough time to watch football matches every day B．he was free enough to go shopping online C．he had no time to do sports every day 【答案】C 【解析】 【详解】 句意：他忙于准备高中入学考试，以至于他每天都没有时间做运动。 考查结果状语从句。A. 他每天有足够的时间看足球比赛；B. 他有足够的时间去网上购物； C.他每天都没有时间做运动。本句是“so…that”结构，表示“如此……以至于……”，引导结果状语从句；根据“He was so busy preparing for the high school entrance exam”可知没有时间娱乐、购物或做运动，A、B两项不合句意，故选C。 2．I won't go he comes back. A．until B．while C．when D．why 【答案】A 【解析】 句意：直到他回来，我才走。A. until 直到； B. while当---时候； C. when当---时候； D. why为什么；not---until--- 直到---才---；故选A 3．---Can students go online during lessons? ---They can’t ________ it is f or that lesson. A．if B．unless C．until D．while 【答案】B 【解析】 【详解】 句意：——学生上课时能上网吗？他们不可以，除非为了上那堂课。本题考查连词辨析，A.如果；B.除非；C.直到；D.当……时候。答语是条件状语从句，根据句意结构可知，需要unless连接，故选B。 4．We will go to Tian’anmen Square to watch the raising of national flag if it _________ tomorrow. A．will rain B．rains C．doesn’t rain D．won’t rain 【答案】C 【解析】 试题分析：句意：如果明天不下雨我们要去天安门广场看升国旗。根据句意及题干分析if