《中考复习状语从句》PPT课件
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状语从句(43张PPT)初中英语专项复习课件
知识点 2 状语从句的连接词
(3) 强调句型：It is/was not until ... that ...
It was not until the professor came that we began the experiment. 直到教授来了，我们才开始做实验。 易错点：（1）till不可以置于句稿首定，PP而T until可以。 Until you told me I had no idea o稿新f定，itP上.P千T，款海模量板素选材择持总续有更一 直到你告诉我，我才知道这件事款适。合你
It’s three years since he joined the army.(自从......多久了......)
自从他参军已经三年了。
稿定PPT
稿定PPT，海量素材持续更
It's two years since we arrived新h，e上re千. 款我模们板选到择这总有儿一两年了。 款适合你
连词
常用句式
before It will be＋一段时间＋before ... 过……时间才……
since
It will not be/was not long＋before ... 不久就会/没多久就…… It was＋时间段＋befo稿稿r定e定P.P.P.TP，过T海了量素…材…持续(时更 间)才…… It is/has been＋一段时新间，上＋千s款in模c板e选..择. 总(从有一句用一般过去时)
as soon as / no sooner … than / hardly … when / the moment / the minute /（一…就…) since （自从…以来）
知识点2：状语从句的连接词 No. 1 时间状语从句 1．when, while, as 引导的时间状语从句
中考英语复习状语从句复习课件(共30张PPT)
状语从句
考点梳理
中考对状语从句的考查主要集中在时间、原因和条件状语 从句上。尤其应当注意当主句为一般将来时,时间和条件状语用
一般现在时。
时间 when/while/as, 状语 before, 从句 after, since, until, as soon as 条件 if, as long as, 状语 unless 从句 原因 because, since, as, 状语 for 从句 目的 so that, in order 状语 that 从句
结果 状语 从句 让步 状语 从句
so that, so… that/such… That though/although, even if, whenever, whatever
It’s so hot that we want to go swimming. It is such a heavy box that nobody can move it away. Though he looks weak, he is healthy.
( B )2. Please hold on to your dream one day it comes ture. A. if B. until C. unless D. though
【点拨】if如果；until直到……为止；unless除非；though尽
管。由空格前“请坚持你的梦想”和空格后“有一天它实现” 可在，中间应用四个选项中的until连接，其他三项句意不通。 句意“请坚持你的梦想，直到有一天它实现为止。”
比较 状语 从句 地点 状语 从句
than, as…as, not as/so…as where, wherever
He ran as fast as Mike.
考点梳理
中考对状语从句的考查主要集中在时间、原因和条件状语 从句上。尤其应当注意当主句为一般将来时,时间和条件状语用
一般现在时。
时间 when/while/as, 状语 before, 从句 after, since, until, as soon as 条件 if, as long as, 状语 unless 从句 原因 because, since, as, 状语 for 从句 目的 so that, in order 状语 that 从句
结果 状语 从句 让步 状语 从句
so that, so… that/such… That though/although, even if, whenever, whatever
It’s so hot that we want to go swimming. It is such a heavy box that nobody can move it away. Though he looks weak, he is healthy.
( B )2. Please hold on to your dream one day it comes ture. A. if B. until C. unless D. though
【点拨】if如果；until直到……为止；unless除非；though尽
管。由空格前“请坚持你的梦想”和空格后“有一天它实现” 可在，中间应用四个选项中的until连接，其他三项句意不通。 句意“请坚持你的梦想，直到有一天它实现为止。”
比较 状语 从句 地点 状语 从句
than, as…as, not as/so…as where, wherever
He ran as fast as Mike.
中考英语语法之状语从句 )(共23张PPT)
八、让步状语从句 定义：让步状语从句，是指状语从句中的一种，其本身也是状语从句。一般翻译为“尽管……”或 “即使……”，就是我们日常生活中用的“退一步说…”的感觉。 //引导词// though/although/as（虽然，尽管） even if/though（即使，尽管） whether/no matter whether...or(not)（不管...是否，不管是...还是） //注意// 1. though, although,as的区别 A. though, although的主句中可以用 yet, still, nevertheless,但不可使用but。 B. though引导的从句可以倒装，也可以不倒装； as引导的从句必须倒装； although引导的从句不能倒装。
as 1. 表示“当...时候”，强调同时发生，不指先后。 2. 说明两种正在发展或变化的情况，表示“随着”，表示时间的推移。 3. 表示“一边...一边...”。 4. 强调两个动作紧接着发生。 5. 表示“虽然，尽管”。 6. 其他含义“正如，正像”，“作为”，“由于，因为”
before 1. 一般意为“在...之前” “...才”，“...就” “还没有...”“免得”“不知不觉” “宁可，宁愿”，“否则，要不然”。
//注意// for也可以表示原因，属并列连词，但不是说明直接原因，而是对某种情况加以 推断，用于表示补充说明理由。
三、地点状语从句 定义：地点状语从句表示地点、 方位。 引导词：where, wherever 1. 地点状语从句由where, wherever引导。 //注意// where与wherever的区别：where表特定的地点，而wherever表示非特定的地点。 wherever=to/at any place where 2. 地点状语从句与定语从句的区别 where引导定语从句时，从句前应有一个表示地点的名词作先行词； 而状语从句前则无先行词。
中考英语专题复习(十七)状语从句(共33张PPT)
在复合句中表示的状语 可以用来修饰谓语（包括非谓语动词）、定语、状语或整 个句子。
We became superheroes suddenly.
（动词）
（副词）
主语
谓语
宾语
状语
We became superheroes after we watching Avengers. （句子）
状语从句 分类
2. 在我们进电影院之前，我们应该买一些喝的。 We should buy something to drink before we enter the cinema. 3. 直到那个妖怪死了，这个电影才会结束。 The movie will not end until the monster dies.
A. while B. as C. before D. when
_____ John was watching TV, his wife was cooking.
A. As
B. As soon as C. While
D. Till
地点状语从句
地点状语从句表示地点、 方位， 这类从句通常由where, wherever引导。
1. 我喜欢女生，直到我遇到马力。 我是马力
I like girls until I met 马力.
2. 我不喜欢男生直到我遇到马力。
I did not like boys until I met 马力.
3. 我一遇到马力就坠入爱河了。
As soon as I met 马力 I fell in love with him.
选出你的Mr. Right
1. Tom will call me as soon as he _______ Shanghai.
We became superheroes suddenly.
（动词）
（副词）
主语
谓语
宾语
状语
We became superheroes after we watching Avengers. （句子）
状语从句 分类
2. 在我们进电影院之前，我们应该买一些喝的。 We should buy something to drink before we enter the cinema. 3. 直到那个妖怪死了，这个电影才会结束。 The movie will not end until the monster dies.
A. while B. as C. before D. when
_____ John was watching TV, his wife was cooking.
A. As
B. As soon as C. While
D. Till
地点状语从句
地点状语从句表示地点、 方位， 这类从句通常由where, wherever引导。
1. 我喜欢女生，直到我遇到马力。 我是马力
I like girls until I met 马力.
2. 我不喜欢男生直到我遇到马力。
I did not like boys until I met 马力.
3. 我一遇到马力就坠入爱河了。
As soon as I met 马力 I fell in love with him.
选出你的Mr. Right
1. Tom will call me as soon as he _______ Shanghai.
中考英语复习状语从句【优质PPT】
D. see; will go
总结： 条件状语从句考的频率比较高，主要考查if 2连021词/10/1和0 if引导的从句与主句的时态（主将从现） 6
原因状语从句
中考题型
1. I didn’t buy the dictionary yesterday ______
√ my aunt would give me one. A. until B. because C. if D before 2. ---- Why did you come to school late this morning?
结果状语从句
1. His mother was _______ busy ______ she
√can’t look after Tom.
A. so, that
B. such, that
C. very , that D. too, to
2. He was ______ angry to hear the news that
2021/10/10
18
——Look! Here comes our school bus.
——No hurry. Don't get on it _________
it has stopped.
A.until
B. after
C. since
D. when
[答案] A．
[解析]句中有don‘t，可想not．．．until为固定结构， 意为“直到……才……”。
came back.
A. until B. before C. after D. while
5. John fell asleep ________ he was listening to the
中考复习--状语从句(共17张PPT)
原因状语从句 He distrusted me because I was new. As all the seats were full he stood up. Since we’ve no money,we can’t buy it.
目的状语从句
You must speak louder in order that you can be heard by all. I got up early so that I could catch the first bus.
although和though用正常语序，可与yet, still 连用，但不可和but 连用。
地点状语从句
The church was built where there had once been a Roman temple. Where there is a will, there is a way. The Red Cross is expected to send help wherever there is human suffering.
little是“小的”意思除外。 同义句转换 The girl is so young that she can't go to school. = The girl is too young to go to school. = The girl is not old enough to go to school.
只能用so的情况 There are so many people on the bus that we must stand. 当名词前有表示数量的many, much, (a) little, (a) few等表数量的词 修饰时，只能用so.
2023年中考英语语法状语从句精讲课件25张PPT
• Leave it where it was
• Put it where it can be seen easily.
• Put it to the place where it can be seen easily（定从）
原因状语从句
• 原因状语从句：由because, since, now that, as, for 引导。
As he said it, he laughed.
As time went on,I began to understand it. with time going on,I began to ……
• (三) 由immediately, instantly，directly，, no sooner…than, hardly…when, scarcely…when, as soon as ,the moment，the minute，on/upon/at doing ，引导的时间状语从句 表示“一…… 就……”，
状语从句（adverbial clause).
状语的定义和构成形式 用作状语的从句叫作状语从句状语从句. 由从 属连词引导，修饰主句中的动词，形容词和副 词等，可放句首或句末。放在句首时，从句后 面用逗号；放在句末时，不用逗号。
状语从句的分类
• 根据意义上的不同，英语状语从句分为 • 时间状语从句、 • 地点状语从句、 • 原因状语从句、 • 目的状语从句、 • 结果状语从句、 • 条件状语从句、 • 方式状语从句、 • 让步状语从句, • 比较状语从句。
• 1.because 语气最强，用来回答why提问，可用在强调 句型中。
• I do it because I want to do it.
• It was because he was ill that he didn’t go with us.
• Put it where it can be seen easily.
• Put it to the place where it can be seen easily（定从）
原因状语从句
• 原因状语从句：由because, since, now that, as, for 引导。
As he said it, he laughed.
As time went on,I began to understand it. with time going on,I began to ……
• (三) 由immediately, instantly，directly，, no sooner…than, hardly…when, scarcely…when, as soon as ,the moment，the minute，on/upon/at doing ，引导的时间状语从句 表示“一…… 就……”，
状语从句（adverbial clause).
状语的定义和构成形式 用作状语的从句叫作状语从句状语从句. 由从 属连词引导，修饰主句中的动词，形容词和副 词等，可放句首或句末。放在句首时，从句后 面用逗号；放在句末时，不用逗号。
状语从句的分类
• 根据意义上的不同，英语状语从句分为 • 时间状语从句、 • 地点状语从句、 • 原因状语从句、 • 目的状语从句、 • 结果状语从句、 • 条件状语从句、 • 方式状语从句、 • 让步状语从句, • 比较状语从句。
• 1.because 语气最强，用来回答why提问，可用在强调 句型中。
• I do it because I want to do it.
• It was because he was ill that he didn’t go with us.
中考英语二轮复习语法专项：状语从句课件(32张PPT).ppt
目的 so that (以便, 为了), in order They sped up so that/ in
状语从句 that (为了)
order that they could get
there on time.
分类
引导词
例句
结果 so … that / such … that (如 It’s so hot that nobody
在主从复合句中作状语的从句叫做状语从句。状语从 句由从属连词引导，与主句连接，位于句首时，常用逗号 与主句分开，位于句末时，其前一般不用逗号。
状语从句根据其用途可分为时间状语从句、条件状语 从句、原因状语从句、目的状语从句、结果状语从句、让 步状语从句、比较状语从句、地点状语从句等。
分类
引导词
例句
A. so
B. when
C. unless
( A )2. I love to listen to rock music _______ I am running.
A. while
B. after
C. since
D. until
( B )3. Ann didn't know anything about the news _______
状语从句 此……以至于)
wants to go out.
though/although (尽管, 虽然), Although milk is good，
让步 even though/if (即使),
状语从句
whatever (无论什么), whenever (无论何时),
you should not drink too much of it. Whatever you want to be,
中考英语《状语从句》总结复习课件(共31张PPT)
“在……之后”，表示主句的动作发生在从句的动作之后
ura went to school by bike ____she had breakfast at home A．when B．after C．before D．while 2.Please take the medicine _________ you go to bed. A．when B．after C．before D．while 3.We should wash our hands _______ we have meals. A. after B. before C. when D. since
(1)用于句首时。例如: Until you told me I had no idea of it. 在你告诉我之前，我对此事一无所知。
(2)not until 句首起强调。 Not until eleven o’clock did we get home. 我们直到十一点才回家。
since
I haven't heard from Jenny since she left middle school. It is five years since we met last time. It has been five years since we met last time.
2.I was cooking ___ I heard someone knocking at the door. A．as soon as B．when C．unti her homework ______ the bell rang. A．as soon as B．when C．until D．while
2.引导词：
when/while/as; before/after; until; till since; as soon as... each time/every time/whenever
ura went to school by bike ____she had breakfast at home A．when B．after C．before D．while 2.Please take the medicine _________ you go to bed. A．when B．after C．before D．while 3.We should wash our hands _______ we have meals. A. after B. before C. when D. since
(1)用于句首时。例如: Until you told me I had no idea of it. 在你告诉我之前，我对此事一无所知。
(2)not until 句首起强调。 Not until eleven o’clock did we get home. 我们直到十一点才回家。
since
I haven't heard from Jenny since she left middle school. It is five years since we met last time. It has been five years since we met last time.
2.I was cooking ___ I heard someone knocking at the door. A．as soon as B．when C．unti her homework ______ the bell rang. A．as soon as B．when C．until D．while
2.引导词：
when/while/as; before/after; until; till since; as soon as... each time/every time/whenever
中考英语语法复习状语从句课件
C. If
D. Though
（ ）7. My family always go somewhere interesting ____ the holiday begins.
A. as soon as
B. so
C. so that
D. even though
（ ）8. Phone me_______ you get to Wuhan.
）1. What's the matter with Li Ping?
A. She has a sore back.
B. She has a stomachache.
C. She has a sore throat.
D. She has a toothache.
（
）2. What causes Xu Fang’s trouble?
A. Going to the doctor.
B. Doing exercise.
you start.
主将从现
Unless you go at once, you will be late. = If you don’t go at once, you will be late.
unless=if … not
3. as long as
As long as we show our love, the world will be full of happiness.
A. He talks too much.
B. He cooks too many dishes.
C. He often works in front of his computer.
D. He doesn't eat regularly.
状语从句专题课件ppt(初三复习课件)
修饰动词、形容词、副词或整个句子的 成分，可以表示时间，地点，目的，结果等。 2. 状语从句：
修饰动词、形容词、副词等的句子。状 语从句一般由连词引导。
二、状语从句的分类
（一）时间状语从句 引导词：when, while, whenever, before, after, as soon as, until … 例句：1. He visited a lot of places while he was traveling. 他在旅途中参观了许多地方。
（八）方式状语从句 (1) 引导词：as，as if 例句：Leave the children as they are. 让孩子们自由随便一些。
例题讲解
1. _____ David goes, he is welcome. A. Whichever B. However C. Wherever
D. Whatever
（三）原因状语从句 引导词: because, since, as, for 注：对because 原因状语提问用“why”；because 不能与so连用。 例句： I didn’t go to school yesterday because I was ill. 我昨天没去上学，因为我生病了。
2. — Do you know if he _______ to school with us? — I think he will if he ______ better tomorrow. A. goes; feels B. goes; will feel C. will go; feels D. will go; will feel
（二）条件状语从句 引导词：if, unless (= if not), as long as 例句： 1. If it doesn’t rain tomorrow, we will go hiking.
修饰动词、形容词、副词等的句子。状 语从句一般由连词引导。
二、状语从句的分类
（一）时间状语从句 引导词：when, while, whenever, before, after, as soon as, until … 例句：1. He visited a lot of places while he was traveling. 他在旅途中参观了许多地方。
（八）方式状语从句 (1) 引导词：as，as if 例句：Leave the children as they are. 让孩子们自由随便一些。
例题讲解
1. _____ David goes, he is welcome. A. Whichever B. However C. Wherever
D. Whatever
（三）原因状语从句 引导词: because, since, as, for 注：对because 原因状语提问用“why”；because 不能与so连用。 例句： I didn’t go to school yesterday because I was ill. 我昨天没去上学，因为我生病了。
2. — Do you know if he _______ to school with us? — I think he will if he ______ better tomorrow. A. goes; feels B. goes; will feel C. will go; feels D. will go; will feel
（二）条件状语从句 引导词：if, unless (= if not), as long as 例句： 1. If it doesn’t rain tomorrow, we will go hiking.
状语从句-中考复习PPT课件
D. comes, will be
19. -Do you know if we will go to the cinema tomorrow? --
I think we’ll go if we too much homework.
A. will have B. had C.Dwon't have D. don’t have
7．比较状语从句：比较状语从句通常由 as…as，比较级+ than…等连词引导。
8．方式状语从句：方式状语从句通常由as if．as though等词引导。
9．让步状语从句：让步状语从句通常由 although，though，even if，whoever/no matter who等连词引导。
2021
come
2. If Frank B to the office tonight, give this
package to him. A. came B．comes C．has come D．will
come
3. Frank D a film if he's free next Saturday.
（北京）
B. 20. What he do if he
the answer?
A. will, Bwon ' t know C. doesn't. won't know
B. will. doesn't know D2.0d21oesn’t, doesn't know 13
He is such a kind teacher that they all like him.
They are such good students that they always do
状语从句(23张PPT)初中英语专项复习课件
时间状语从句的引导词
when while as
when, while, as：当…时
①既可以加持续性动词也可以加终止性动词 ②从句动作与主句动作可同时发生也可先后发生
When he arrived all the guests had left. Mary was having dinner when I saw her.
让步状语从句
though和although的用法 （1） 两词用法基本相同，although更加正式一些 （2） even though结构中的though不可以换为although （3） 两词不可与but连用，但是可以和yet, still连用
Though/although she works very hard, she makes slow progress. Though/although she is young, she has travelled to many countries.
条件状语从句
If the weather is terrible next week, we will put off the meeting. As long as you promise to come, I will wait for you. You will be late unless you hurry up. In case it rains, do not expect me.
3. such + 形容词+不可数名词+ that…
This was such fine music that it was worth listening to it again.
比较状语从句
1.在复合句中起比较状语作用的从句称为比较状语从句
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结果状语从句 so (such )… that …. 目的状语从句 so that ; in order that ;
让步状语从句 though ; although ; as ; however ; no matter ….; 疑问词+ever；
比较状语从句 than ; as (so )…. as ; the more ….the more
② Wherever you go, you should work h ard.
Where there is a will, there is a way. ________________________. Wherever you go, I go too． 无论你去哪里, 我都去。
① He got up ___ early that e caught the f irst bus.
② It’s ____ a good chance that we must not miss it.
He spoke ___ fast that I couldn't follo w him．他讲得太快，我跟不上。 He told us ____funny stories that we al l laughed． 他给我们讲了那么多有趣的故事，我 们全都哈哈大笑。
____ he reached home, he had a little res t. 回到家后, 他休 息了一会儿。
2. 条件状语从句 常用引导词: _if_, _u_n_l_e_ss_ 特殊引导词: as/so long as,
① We’ll start our project ___ the presi dent agrees.
③ as强调主句与从句表示的动作同时发生; while强调主句表示的动作持续于while所 指的整个时间内; when可指主、从句所述 动作同时或先后发生。如: He sang as he went along. 他边走边唱. Please write____ I read. 我读的时候, 请 写下来。
3. 比较状语从句
常用引导词: _a_s_(_同__级__比__较__),t_h _a_n_(_不__同__程__度__的__比__较__) 特殊引导词： the more … the more … ;
A is to B what /as X is to Y; n o … more than;
① She is___ bad-tempered ____ her mother.
总结、状语从句常见引导词
时间状 语从句
as /when / while; after; 关联词 before; since; till / until
whenever; no sooner … than / hardly … when
副词 immediately; 名词 the moment; the minute; the 短语 second; each (every)
地点状语从句 where wherever
1. 时间状语从句 常用引导词：w__h_e_n, _a_s, _w__h_il_e, _a_s___s
_o.o_n_,a_s__w__h,il_e__b_e_f_o,r_e__a_f,t_er__s_i_n,c_e__t, il _l __u_n_.til 特殊引导词：the minute, the moment, t he day, immediately, no sooner … tha n, hardly …when, scarcely … when
5. 地点状语从句
常用引导词: _w__h_e_r_e_ 特殊引导词: _w_h_e_r_e_v_e_r_,e_r_y_w__h_e_re
① Air will be heavily polluted where the re are factories.
状语从句
状语从句简介
状语从句主要用来修饰主句或主句的谓 语。一般可分为八大类, 分别表示时间、 地点、原因、目的、结果、条件、让步、 比较。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和特殊 的连接词即考点。
time;the day (year); next time; the first (second /last ) time; by the time
条件状语从句 if ; unless ; as (so ) long as ;
原因状语从句 because ; as ; since ; now (that )
② The house is three times___ big __ _ ours.
③ ____ more you exercise, ____ healt hier you will be.
4. 结果状语从句 常用引导词: _so_…_ _t_h_a_t, _s_u_c_h _…__t_h_a_t.
疑点解释
1) when, while, as的区别： ① 三者均可表示“当……的时候”, 如果主句
表示的是短暂的动作, 而从句表示的是一 段时间, 三者可通用。 ② as和when都可与终止性动词连用, while 只能与延续性动词连用。如：
It was snowing ____ we got to the airpor t．当我们到达机场时, 天正下着雪。 （不能用 while）
② You will certainly succeed ____ ___ ___ you keep on trying.
要点: 引导条件状语从句的连词有if(如 果)、unless(除非)等, unless在意义上相 当于if…．not。条件状语从句也像时 间状语从句一样，如果主句用将来时, 从句要用现在时代替将来时。如： You will fail ____ you study hard．(＝ You will fail if you don't study hard．) 除非你努力学习, 否则你会失败。
让步状语从句 though ; although ; as ; however ; no matter ….; 疑问词+ever；
比较状语从句 than ; as (so )…. as ; the more ….the more
② Wherever you go, you should work h ard.
Where there is a will, there is a way. ________________________. Wherever you go, I go too． 无论你去哪里, 我都去。
① He got up ___ early that e caught the f irst bus.
② It’s ____ a good chance that we must not miss it.
He spoke ___ fast that I couldn't follo w him．他讲得太快，我跟不上。 He told us ____funny stories that we al l laughed． 他给我们讲了那么多有趣的故事，我 们全都哈哈大笑。
____ he reached home, he had a little res t. 回到家后, 他休 息了一会儿。
2. 条件状语从句 常用引导词: _if_, _u_n_l_e_ss_ 特殊引导词: as/so long as,
① We’ll start our project ___ the presi dent agrees.
③ as强调主句与从句表示的动作同时发生; while强调主句表示的动作持续于while所 指的整个时间内; when可指主、从句所述 动作同时或先后发生。如: He sang as he went along. 他边走边唱. Please write____ I read. 我读的时候, 请 写下来。
3. 比较状语从句
常用引导词: _a_s_(_同__级__比__较__),t_h _a_n_(_不__同__程__度__的__比__较__) 特殊引导词： the more … the more … ;
A is to B what /as X is to Y; n o … more than;
① She is___ bad-tempered ____ her mother.
总结、状语从句常见引导词
时间状 语从句
as /when / while; after; 关联词 before; since; till / until
whenever; no sooner … than / hardly … when
副词 immediately; 名词 the moment; the minute; the 短语 second; each (every)
地点状语从句 where wherever
1. 时间状语从句 常用引导词：w__h_e_n, _a_s, _w__h_il_e, _a_s___s
_o.o_n_,a_s__w__h,il_e__b_e_f_o,r_e__a_f,t_er__s_i_n,c_e__t, il _l __u_n_.til 特殊引导词：the minute, the moment, t he day, immediately, no sooner … tha n, hardly …when, scarcely … when
5. 地点状语从句
常用引导词: _w__h_e_r_e_ 特殊引导词: _w_h_e_r_e_v_e_r_,e_r_y_w__h_e_re
① Air will be heavily polluted where the re are factories.
状语从句
状语从句简介
状语从句主要用来修饰主句或主句的谓 语。一般可分为八大类, 分别表示时间、 地点、原因、目的、结果、条件、让步、 比较。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和特殊 的连接词即考点。
time;the day (year); next time; the first (second /last ) time; by the time
条件状语从句 if ; unless ; as (so ) long as ;
原因状语从句 because ; as ; since ; now (that )
② The house is three times___ big __ _ ours.
③ ____ more you exercise, ____ healt hier you will be.
4. 结果状语从句 常用引导词: _so_…_ _t_h_a_t, _s_u_c_h _…__t_h_a_t.
疑点解释
1) when, while, as的区别： ① 三者均可表示“当……的时候”, 如果主句
表示的是短暂的动作, 而从句表示的是一 段时间, 三者可通用。 ② as和when都可与终止性动词连用, while 只能与延续性动词连用。如：
It was snowing ____ we got to the airpor t．当我们到达机场时, 天正下着雪。 （不能用 while）
② You will certainly succeed ____ ___ ___ you keep on trying.
要点: 引导条件状语从句的连词有if(如 果)、unless(除非)等, unless在意义上相 当于if…．not。条件状语从句也像时 间状语从句一样，如果主句用将来时, 从句要用现在时代替将来时。如： You will fail ____ you study hard．(＝ You will fail if you don't study hard．) 除非你努力学习, 否则你会失败。