高一英语语法pdf

高一英语语法是学习整个高中英语语法的开始，也关系到整个高中英语语法的基础好坏，那么高一英语语法有哪些内容呢?下面由我为大家整理的高一英语语法大全，希望对大家有所帮助!

高一英语语法大全

虚拟语气在各种从句的应用

主语从句的虚拟

1. It is + adj. + that sb. (should) do

常见的形容词有：necessary, important, strange, natural

It's important that he take my advice.

2. It is + n. + that sb. (should) do

常见的名词有：a pity, a shame, no wonder, one's wish

It's a pity that he be so silly.

3. It is + done + that sb. (should) do

常见的过去分词有：suggested, advised, demanded, requested, required, asked, ordered,

proposed, decided, desired, insisted等。

It's requested that she go home as soon as possible.

宾语从句的虚拟

1. 表命令，表建议，表要求的动词，后接宾语从句虚拟。虚拟的构成为(should) do。

I advise that he stay at home.

2. wish后接从句，虚拟的构成是往过去推一个时态。

I wish I had watched the football match last night.

注意以下几组词或短语用于虚拟语气中。

1. as if, as though

He speaks English as if he were a native speaker.

2. otherwise, but, even though

He was ill. Otherwise he would have been there.

3. with, without, but for

Without your help, I would have died two years ago.

But for your help, I would have died two years ago.

4. would rather I'd rather you told me yourself.

5. It's time that

It's time that you went to bed.

It's time that you should go to bed.

表语从句中的虚拟

在表语从句中，表示间接的命令，要求、请求、建议、决定等，主句中的主语通常是suggestion, proposal, request, orders, idea等。从句谓语形式是"(should)+动词原形"。如：

His suggestion is that we (should) leave at once.

名词从句部分

1. that不可省略的情况

2. that引导同位语从句和that引导定语从句的区别：同位语从句中的that是连词，不做成分，只连接主从句，不能省略;定语从句中的that要代替先行词在从句中做主语、宾语或者表语，并且做宾语时可以省略。从语义上看，同位语从句是对前面名词的解释、说明或内容;而定语从句时对前面名词的限定。

We should consider the students’request that the school library provide more books on

popular science. (that引导同位语从句)

The only hope that he expressed was that they would do what they could to help the people

in disaster areas. (that引导定语从句)

3. 要根据句子结构尤其是谓语动词判断从句的类型：

What is known to us all is that the 2008 Olympic Games took place in Beijing.

本句含有一个主语从句和一个表语从句，主句的动词为is。

It is known to us all that the 2008 Olympic Games took place in Beijing.

本句含有一个主语从句，主句的动词为is known to。

As is known to us all, the 2008 Olympic Games took place in Beijing.

本句含有一个定语从句，主句的动词为took place，as引导非限制性定语从句。

4. 名词性从句的语序和语态。

名词性从句均应用陈述语序，不能用疑问语序，其时态应该和主句时态保持一致。

5. 名词性从句中连词的省略。

介词后的连词以及引导主语从句和同位语从句的连词不可省略。that引导名词从句(除了引导第一个宾语从句可省略外)都不可省略，但是引导定语从句并在从句中做宾语时可以省略。

that不能省略的情况：

1)介词后面的that不能省略：

Peter is a good student except that he is sometimes careless.

2)当that引导的宾语从句位于句首时：

That he ever did such a thing I don’t believe.

3)主句谓语动词和that从句之间有插入语，that不省略：

She said that, if she failed, she would try again.

4)当宾语从句有其他从属连词时，that不省略：

He told me that if it was necessary they would work extra time.

6.名词性从句中it的使用：

为了保持句子平衡，多数情况下，it作形式主语或形式宾语，将真正的主语或宾语从句后置。

定语从句

关系代词有who, whom, whose, which, that, as,和关系副词when, where, why。

(1)that指物时一般可与which互换，但在下列情况下，要用that而不用which。

a. 先行词有all, everything等不定代词时，如，

Everything (that) he did is wrong.

b. 先行词被all, every, no, some, any, little, much等修饰时，如，

I'll read all the books (that) you lend me.

c. 先行词被序数词或形容词最高级修饰时，

This is the first letter (that) the boy has written.

d. 先行词被the only, the very, the same, the last修饰时，如

He is the very man (that) I'm looking for.

e. 只用which的情况

在介词后或在非限定性定语从句中

This is the book about which we have talked a lot.

The book, which he gave me yesterday, is very interesting.

f. where和when作关系副词

This is the room where I worked.

This is the room which I stayed in.

I remembered the day when we lived there.

I remembered the day that I spent there.

g. as和which

as 可以放于句首，而which 不可以

As you know, he is good at English.

three of them 和three of which

I have a lot of books, three of which are in Russian.

I have a lot of books and three of them are in Russian.

(2. )“介词+关系代词”的情况：

在固定短语中介词不能提前;判断介词的口诀：瞻前顾后看意义

瞻前——看先行词;顾后——找从句动词;看意义——看全句表达含义

(3. )先行词在从句中充当地点状语时，关系词用where 或者介词加which;先行词在从句中充当时间状语时，关系词用when或者介词加which;先行词在从句中充当原因状语时，关系词用why或者for which。

(4. )注意as和which在非限制性定语从句中代表主句所表达的内容的区别：

位置不同：as从句放在主句前或后均可;而which从句只能放在主句后

作用不同：as从句动词常常是see \know等，因而相当于插入语;which从句则在陈述一件事实。

状语从句部分

1.while 是高考中的高频词，它既可引导时间状语从句，又可引导并列句，还可引导让步状语从句，表示“尽管”。

2. no matter wh- 与wh-ever 的联系及区别：no matter wh- 只引导让步状语从句，此时与wh-ever通用。wh-ever又可引导名词性从句，No matter wh-不能。

No matter when / Whenever he comes back, he should be invited to the party.

3. 在条件，时间和让步从句中，用一般现在时表示一般将来时，用现在完成时表将来完成时，

用一般过去时表过去将来时。在since 引导的时间状语从句中，动词一般都用一般过去时，而主句常用现在完成时。

4. 状语从句的倒装一般有下面几种情况：①否定词开头;②so 加adj. 开头;③as /

though引导的让步状语从句。

5. 连词before小结：

We had sailed four days before we saw land. (……才)

We hadn’t run a mile before he felt tired. (不到……就)

Please write it down before you forget it. (趁……)

Before I could get in a word, he had measured me. (还没来得及)

It will be/was…before…要过多久才……

6. because, since, as 引导原因从句的区别：because表达直接原因，语气最强，回答why;

since通常放句首，译为“既然”;as引导不谈自明的原因，语气最弱;

7. as可以引导多种从句，要注意其中的区别。

8. till, until和not…until的区别;if和unless的区别。

非谓语动词部分

动词不定式几点注意。

1.下列动词或动词短语后接不定式：agree, seem, appear, offer, happen, wish, hope, pay,

expect, long, plan, intend, promise, pretend, decide, afford, manage, choose, be said to,

would like to等。

2. 不定式常用的句型：too…to do (太……而不能), …enough to do…(够……就能

……), so as to do/in order to do(为了……)，so…as to do/such…as to do(如

此……结果……)。

3. 不定式的三个结构：即否定结构、复合结构和疑问结构。

否定结构为“not (never) to do”;疑问结构是特殊疑问词“how (what, which, who, whether…) to do”;复合结构是“for/ of +名词(或代词宾格)+ to do ”。

4. let/ make/ have/ see/ hear/ notice/ observe/ listen to/ look at/ watch/feel

这些动词带不定式作宾补时，省掉to, 若这些动词以被动形式出现时，应加上to。

5. 当前面是the first, the second, the last, need, plan, time, chance, right,determination,

ability, opportunity(机会)，way时，一般用不定式作定语。

6. but/ except + to do/ do 结构，要根据谓语动词来确定其后面的形式。当谓语动词是do,

does, did时，but后用动词原形;谓语动词是其他动词时，but后用“to + 动词原形”的形式。

7. 形容词后一般用不定式(除busy, worth 两个外)。

You are sure to succeed. 你一定能成功。

He is busy preparing his lessons at present. 他现在正忙于预习功课。

8. 不定式作定语和表语时，有时需要在后面放上一个适当的介词。

This is a bench to sit on.(这是用来坐的凳子。)

This room is comfortable to live in. (这个房间住起来很舒适。)

9. 在“主语+系动词+adj.+不定式”这个句型中，当主语是不定式的逻辑宾语时，不定式不用被动，不能在动词后再放宾语。

The question is easy to answer. (question是answer的宾语，不能说：The question is easy to be answered. 也不能说：The question is easy to answer it .)

包含高中英语全部语法的13个句型

1. as 句型

(1) as引导方式状语从句句型：“按照……;正如……”

例：As(it is)in your country, we grow wheat in the north and rice in the south.

正如(像) 你们国家一样，我们北方种植小麦，南方种植水稻。

(2) as+形容词/副词原级+(a /an)+名词+as ; 否定式：not as/so --- as

例：He is as good a player as his sister.

他和他姐姐一样是位优秀的运动员。

(3) such + n. + as to do 如此……以致于……

例：She is such a fool as to believe what he said.

她是一个如此的一个笨蛋以致相信了他所说的话。

(4) so + adj./adv. + as to do sth 如此……以致于……

例：He was so strong as to carry the heavy box.

他是如此的强壮以致于能提起那重箱子。

(5) such...as... 象……之类的…… (接名词或定语从句)

例：He wished to be such a man as Lei Feng was.

他希望成为一个像雷锋这样的人。

(6) the same +名词+as 和……一样的…… (接名词或定语从句)

例：He is not the same man as he used to be.

他不是从前的那样子了。

(7) as 引导非限制性定语从句

例：As is known to us, knowledge is power.

众所周知，知识就是力量。

(8)引导时间状语从句，与while意义相近

例：We get wiser as we get older.

随着我们长大，我们也变得越来越聪明。

(9) 引导原因状语从句，与 because的用法相近

例：As it was getting very late, we soon turned back.

因为越来越迟了，所以我们不久就回来了。

(10) 引导让步状语从句

例：Child as he is, he knows much about science.

尽管他是一个小孩，但他对科学了解得很多。

2. prefer 句型

(1) prefer to do sth

例：I prefer to stay at home.

我宁愿呆在家里。

(2) prefer doing sth

例：I prefer playing in defence.

我喜欢打防守。

(3) prefer sb to do sth

例：Would you prefer me to stay?

你愿意我留下来吗?

(4) prefer to do sth rather than do sth… 宁愿…...而不愿...

例句：I prefer to stay at home rather than go out.

我宁愿呆在家里而不愿出去.

(5) prefer doing sth to doing sth

例：I prefer watching football to playing it.

我喜欢看篮球，不喜欢打篮球。

(6) prefer sth to sth

例：I prefer tea to coffee.

我要茶不要咖啡。

3. when 句型

(1) was/were doing sth...when...

例：He was still smiling when the door opened and his wife came in.

他正笑着的时候门突然开了，他妻子走了进来。

(2) was/were about to do sth ... when ...

例：We were about to start when it began to rain.

我们刚要出发，天就开始下雨了。

(3) had just done ... when ...

例：I had just gone to bed after a very hard day when the phone rang.

在劳累了一天之后我刚刚就寝，电话铃就响了。

4. seem 句型

(1) It +seems + that从句

例：It seemed that everyone was satisfied.

看来好像每个人都很满意。

(2) It seems to sb that ...

例：It seems to me that she is right.

我看她是对的，

(3) There seems to be ...

例：There seems to be a heavy rain.

看上去要有一场大雨。

(4) It seems as if ...

例：It seemed that she couldn't come to class.

看样子她不能来上课了。

5. 表示“相差……; 增加了……; 增加到……”的句型

(1) She is taller than I by three inches.

她比我高三英寸

(2) There is one year between us.

我们之间相差一岁。

(3) She is three years old than I.

她比我大三岁。

(4) They have increased the price by 50%.

他们把价格上涨了50%

(5) His salary has rised to 10,000 yuan per month.

他的工资已经涨到了每月10,000元。

6. what 引导的名词性从句

(1) what 引导主语从句

例：What surprised me is that everybody seemed to be very indifferent to her.

让我吃惊的是每个人似乎对她都很冷淡。

[ indifferent adj.不关心的;冷漠的]

(2) what 引导宾语从句

例：We can learn what we do not know.

我们能学会我们不懂的东西。

(3) what 引导表语从句

例：That is what I want.

那正是我所要的。

(4) what 引导同位语从句

例：I have no idea what they are talking about.

我不知道他们正在谈论什么。

7. too句型

(1) too ... to do ...

例：Politics is too important to be left to the politicians.(=Politics is so important that it can't be left to the politicians.)

政治太重要了，不能由政治家来决定。

(2) only too ... to do ...

例：I shall be only too pleased to get home.

我要回到家里就非常高兴。

(3) too + adj + for sth

例：These shoes are much too small for me.

我穿这双鞋太小了。

(4) too + adj + a + n.

例：This is too difficult a text for me.

这篇课文对我来说太难了。

(5) can't … too +形容词 无论……也不为过

例：We cannot emphasize the importance of protecting our eyes too much.

我们再怎么强调保护眼睛的重要性也不为过。

8. where 句型

(1) where 引导的定语从句

例：This is the house where he lived last year.

这就是他去年住过的房子。

(2) where 引导的状语从句

例：Where there is a will，there is a way.

有志者事竟成。

He left his key where he could find.

他将钥匙放在易找到的地方。

I will go where I want to go.

我要去我想去的地方。

(3) where 引导的表语从句

例：This is where you are wrong.

这正是你错的地方。

9. wish 句型

(1) wish that sb did sth 希望某人现在做某事

例：I wish I were as strong as you.

我希望和你一样强壮。

(2) wish that sb had done sth 希望某人过去做某事

例： I wish you had told me earlier

要是你早点告诉我就好了。

(3) wish that sb would/could do sth 希望某人将来做某事

例：I wish you would succeed this time.

我希望你这次会成功。

10. would rather 句型

(1) would rather do sth than do sth 宁愿做……而不愿做……

例：She would rather die than turn against his motherland.

她宁可死也不去背叛祖国。

(2) would rather have done sth 宁愿过去做过某事

例：I would rather have taken his advice.

我宁愿过去接受他的意见。

(3) would rather sb had done sth 宁愿某人过去做过某事

例：I would rather I had passed the examination last week.

我真希望通过上星期的考试。

(4) would rather sb did sth 宁愿某人现在或将来做某事

例： Who would you rather went with you?

你宁愿谁和你一起去?

11. before 句型

(1) before sb can/ could … 某人还没来得及……

例：Before I could get in a word ，he had measured me.

我还没来得及插话，他就给我量好了尺寸。

(2) It will be +时间+ before + 还有多长时间……

例：It will be 4 years before he graduates.

他还有四年时间变毕业了。

(3) had done some time before (才……)

例：We had sailed four days and four nights before we saw land.

我们航行了四天四夜才见到陆地。

(4) had not done ... before ... 不到……就……

例：We hadn’t run a mile before he felt tired.

我们还没走到一英里路就觉得累了。

(5) It was not +一段时间+ before 不多久就……

例：It wasn’t two years before he left the country.

还没到两年他们离开了那国家。

12. 强调句型

(1) It is /was +被强调部分+that(who)...

例：It was I who wrote to my uncle yesterday.

是我昨天给我叔叔写信的。

(2) Is/was it + 被强调部分 + that (who) ...

例：Was it your brother that you met in the street?

在街上你遇见的是你兄弟吗?

(3) Where/who/what/how等特殊疑问词 + is/was it that ...

例：How is it that you will go to visit her tomorrow?

明天你究竟怎样去看望她?

(4) do/does/did +谓语动词 (强调谓语)

例：They do know the place well.

他们的确很熟悉那个地方。

13. 用于表示过去未实现的希望和计划的句型

(1)would like to/ would love to have done sth.

例：I would like to have written to you.

我本想给你写信的。

(2) was / were going to do sth.(用过去将来时态表示原打算做什么)

例：Lucy was going to watch a basketball match.

Lucy 原打算看一场篮球比赛。

..... 我也是

高一语法(一) 定语从句定义:★在复合句中用来修饰名词或代词(这个名词或代词在英语中叫先行词)的从句叫定语从句.定语从句常见的引导词是:that, which who, whom, whose, when, where, why及.as九个定语从句必须从 ①先行词,②成份 ,③引导词 三要素着手引导词在定语从句作宾语时可以省略★ what不能引导定语从句 / sth that =what all that =what 当第一要素"先行词"是指代物的名词或代词时,其后的定语从句的引导词用that 或which在定语从句中作主语或宾语e.g. A plane is a machine (that / which can fly.) 物 ↘ 作从句中的主语 The noodles (that / which I cooked )were delicious.物 ↘ 作从句中的宾语(可省略)当第一要素先行词是指代人的名词或代词时,用that 或 who在定语从句中作主语,用that /who/whom 在定语从句中代替宾语e.g. The foreigner( that/who visited our school yesterday) is from Canada.↘作从句中的主语The girl (that/who/whom you saw yesterday) is Jim's sister.↘作从句中的宾语(可以省略)关于定语从句中可以作介词宾语的引导词只有引导词which ,whom才可在定语从句中直接跟在某一介词的后面作宾语.e.g. The athlete( to whom you talked) is a famous runner.↘介词 ↘只用whom不用who 代人athleteThis is the room( in (介词) which he lived 3 years ago.) (其中in which 可以用where换,)★但介词也可留在原词组中,上句也可如下表示:The athlete (that/who/whom you talked to )is a famous runner.This is a room (that/which he lived in 3 years ago.)注:常见的不可分拆的词组有:take care of , look after, look for, catch up with, keep up withlook out for ,catch sight of etc.当第一要素先行词是指人或物的名词或代词,在定语从句中修饰别的名词时都用whose 来代替人或物,意为"他(们)的,或它(们)的"在从句中作定语.e.g. This is a door (whose color is brown).↘代替了"门的 "修饰color 在从句中作定语Harry is the boy( whose mother is our maths teacher.)/ Harry is the boy, the mother of whom is our maths teacher .↘ 代替"男孩的" 修饰mother 在从句中作定语/Harry is the boy ,of whom the mother is our maths teacher.稍难例句The child was saved by a man ,the name of whom/whose name/of whom the name was unknown.There are 54 students in our class, 25 of whom are girls /相当于 of whom 25 are girls.The Greens have two daughters, both of whom /of whom both are college students. The journey around the world took the old sailor nine months, of which the sailing time was 226 days./ /相当于/the sailing time of which was226days或 226days of which was the sailing time./注意以下句子: (多样化例句)The beggar has no money with which he can buy food . /The beggar has no money which /that he can buy food with .The beggar has no money with which to buy food.( 引导词后直接跟了不定式短语)/The beggar has no money to buy food with The peasants built some stores in which to store their grain. (可以模仿以上例句举一反三)★在有些定语从句中常只能用that引导定语从句,而不能用who/whom/which与它互换.当第一要素先行词中既有人又有物时e.g. I still remember the school and the teachers (that he mentioned yesterday.)当第一要素先行词是指物的不定代词 如anything , all , everything, much, something. (sth that =what all that =what)e.g. All (that /can be done) has been done(能做的一切都做了)/What can be done has been doneI can do all (that )/what I can║ to help you.that可省因为它在定语从句中作宾语Jack is no longer the lazy boy that he used to be/Jack is no longer what he used to be .Shanghai is no loner what it used to be /Shanghai is no longer the city that it used to be. .当第一要素先行词中带有the only, the very 修饰物时e.g. He was the only person( that knew about the secret.)4. 当第一要素先行词中有序数词或形容词的最高级时e.g. This is the first book〔 (that) I have bought.〕This is the best film (that )I have ever seen 5. 以疑问词who, which 开头的疑问句为避免重复Who is the boy( that is talking to our headmaster )Which of us that knows something about physics does not know this 一般只能用who的搭配anyone who , he who, anybody who, Anyone who /He who /Whoever doesn't reach the great wall is not a true man.★ 注意下句的先行词和主句的谓语单复数He is the only one of the teachers who /that knows French in our school. He is one of the teachers who/that know French in our school.当第一要素先行词是指时间的名词时,其后的定语从句的引导词一般用when,在定语从句中作时间状语.e.g. I still remember the day ( when I first came to Beijing.)↘表时间的名词 ↘作从句中的状语"在那天"当第一要素先行词是指地点的名词时,其后的定语从句的引导词一般用where在定语从句中作地点状语.e.g. The factory (where his father works )is in the west of the city.↘表地点的名词 ↘作从句中状语"在那家工厂"★ ★ case ,point situation ,scene 等是表示地点的抽象名词,其后的定语从句常常用where引导当第一要素先行词是reason 时,其后的定语从句的引导词一般用why (the reason why) 在定语从句中作原因状语.e.g. There are several reasons( why we can't do that).★**但并非看到先行词是指时间或地点的名词及reason 时,就马上用引导词when ,where or why ,要看在定语从句中缺少了什么成份,如果第一要素"先行词"的确是时间或地点的名词及reason,就立刻分析第二要素"成份",如果定语从句中缺少了成份主语或宾语,这时只能把先行词第一要素时间或地点的名词及reason,看作指物的名词,然后选择第三要素"引导词"用that/which 而不能如例句"五,六, 七"中用when ,where, or why .e.g. I still remember the day (that/which we spent (度过) together ) last summer.↘表时间的名词 ↘在定语从句中作spent的宾语故不用when The factory (that / which we visited last week) is my father's.↘表地点的名词 ↘ 在定语从句中作visit 的宾语,故不用whereThe reason (that /which was given by him) was right.↘表原因 ↘在定语从句中作主语,故不用why***还要注意典句 The reason is that ………是表语从句eg. The reason is that he has difficulty in learning English . The reason (why he is late for school) is that he missed the early train. ****************************************************************************★★以上所举例子全部为限制性定语从句,主从句之间无逗号分开,因此,如果主从句之间有逗号隔开,后面的从句即被称为非限制性定语从句.引导词that是永远不会出现在非限制性定语从句中.e.g. Dinner starts with a small fish, which (不用that) is called a starter .Yesterday I met LiPing , who(不用that) look very tired. 十.引导词As 引导的定语从句常在such ….as, the same …as , as…as结构中 ,as在定语从句作主语或宾语.Such a boy (as you referred to just now) is too curious.I have the same reference book ( as was described in the lecture .)I have as many books〔 as you (have) 〕区别下列两组句子.This is the same book( as he bought yesterday .) ( 同一种书)This is the same book( that he bought yesterday.)( 同一本书)He is such a lovely boy as we all like. (定语从句中作like 的 宾语)He is such a lovely boy that we all like him.( 结果状语从句 十一,★ As 也可以引导非限制性定语从句. 但要区别which引导非限制性定语从句.As 引导非限制性定语从句,可以放在句首,或句中, 谓语常是 expect, know, hope , realize ,see, understandEg. He stands out of the crowd in music, as everybody can see.= As everybody can see, he stands out of the crowd in music2. As 引导非限制性定语从句,不用于否定句.而which可以.Eg. He took the first place, which we didn't expect.which引导非限制性定语从句只能放在句中,且主从句之间常有因果关系.Eg. You saved my life, which I will never forget.↘ 因 ↘果十 二,★注意先行词way ,time后的定语从句当先行词是way意为"方式, 方法"时,引导定语从句的关系词有三种形式.What surprised me was not what he said but the way in which/that / 不填 he said it.注意下面两个句子中关系词的不同,试比较The way in which/that /不填 he explained the sentence to us was not difficult to understand.他向我们解释句子的那种方法不难理解.The way ( that /which /不填 ) (he explained ∧to us was quite simple.(作explained的宾语)他向我们解释的那种方法很简单.先行词是time时,若time 是"次数"时, 应用关系代词that引导定语从句,that可省略;若time作"一段时间"讲时,应用关系副词when或介词at/during+which引导定语从句.如:This is the second time (that) the president has visited the country.(表第几次时,必须用完成时)I could hardly remember how many times (that) I've failed.This was at a time when/during which there were no radios, no telephones or no TV sets.Attributive clauses 定语从句 综合一练)(2007/9/20)★定语从句的补充说明:Which仅表示"这件事,这(个/点)"等,相当于and that 或and this;as 表示"正如/正象/这一点..."等as常引导肯定的非限制性定语从句.否定的非限制性定语从句则用which.在下列一些固定结构中,用as不用which:As we (all) know, as is well known, (众所周知)as we (all) can see, as you say,as is said/mentioned above, as you may have heard, as you may remember,as is often the case,(情况经常如此) as often happens 等.★注意以下例句:Eg: 1. He failed to keep his promise , whichdisappointed meand that2.He has a lot of magazines ,some of which are about sports.and some of them3.There are fifty students in the class ,three-fifths of whom are girls.and three-fifths of them★如何区别定语从句和强调句1. 强调句型 It is +被强调部分(人)that/who+其他……强调句型 It is +被强调部分(物)that …+其他当强调名词时,注意勿与定语从句混淆.如★It was in the company that my father worked in for ten years.(定语从句) that /which my father worked for ten years.(强调句)★----where did you have the shampoo ----- It was in the barber's shop (that /which you recommended to me. (定语从句) )(that I had the shampoo.) (强调句)(此句常常省略的)that I had a shampoo and set. (强调句)It /this is the first time that I have visited Scotland. (定语从句)★It was for the first time that I visited Scotland. (强调句)这些定语从句中,that在从句部分担当成分.如果去掉it is ….that ….,句子结构就不完整了.而在强调句中,如果去掉it is ….that/who …这个架子.,只需要把语序稍加调整,句子结构仍是完整的.★★特别注意难句带有定语从句的强调句型"It is +被强调的名词+修饰该名词的定语从句+that/who引导的强调句+其他部分".如It was in that barber's shop( which/ that was managed by Coney)that I met the pop star.It is always the mouth( which talks too much ) that causes troubles.It is only a man who has seen much of the world that can be a leader.------When did he have a traffic accident -----It was in 2005 when he was in college. that he had a traffic accident (此句常常省略的)