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英语造句软件
这是比较全面的语法讲解，里面也有例句自己去找吧，语法自己也要看。我建议还是抄在笔记本上吧。不排除有错误，自己又不懂得地方要问罗
主题： 定语从句 知识讲解 定语从句何时用that,何时用which,何时用where,when,what…
内容： 老师您好,请问:定语从句何时用that,何时用which,何时用where,when,what…
!
2.i don't know which one to chose.
3.i want to know who is your best friend .
4.will you give him a message when you see him?
5.can you tell me where you live?
6.please tell me why you are late.
定语从句（Attributive Clauses）在句中做定语，修饰一个名词或代词，被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。
关系代词有：who, whom, whose, that, which等。
关系副词有：when, where, why等。
一、 关系代词引导的定语从句
关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。
1）who, whom, that
这些词代替的先行词是人的名词或代词，在从句中所起作用如下：
Is he the man who/that wants to see you?
他就是你想见的人吗？（who/that在从句中作主语）
He is the man whom/ that I saw yesterday.
他就是我昨天见的那个人。（whom/that在从句中作宾语）
2) Whose 用来指人或物，(只用作定语, 若指物，它还可以同of which互换）, 例如：
They rushed over to help the man whose car had broken down. 那人车坏了，大家都跑过去帮忙。
Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。
3）which, that
它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等，例如：
A prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。（which / that在句中作宾语）
The package (which / that) you are carrying is about to come unwrapped. 你拿的包快散了。(which / that在句中作宾语)
二、 关系代词that, which的用法
A. 以下情况多用that.
(1) 如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系代词一般只用that，不用which。例如：
All the people that are present burst into tears.
Is there anything that I can do for you?
(2) 如果先行词被the only, the very, the same, the last, the best等词修饰，关系代词常用that(指人时，可以用who),例如：
This is the very book that I want to find.
That is the best film that we have seen.
I was the only person in my office that/who was invited.
(3) 当先行词被all, every, no, some, any, little, much所修饰时；
You can take any seat that is free.
(4) 当先行词被序数词或形容词最高级所修饰时。
It is the first foreign book that I have ever seen.
This is the most beautiful flower that I have seen.
(5) 在there be句型中，常用that.
There is a man that lives in that village.
(6) 先行词有两个，一个指人，一个指物，关系代词应该用that。例如：
The boy and the dog that are in the picture are very lovely.
B. 以下情况用which.
(1) 当关系词前面有介词时，指物常用which.
The prize for which he worked so hard was a new bike.
He built a telescope through which he could study the skies.
(2) 非限制性定语从句指物时，多用which.
Bamboo is hollow, which makes it light.
He wrote an article, which tells us about the computer.
(3) 如果先行词本身是that时，只用which.
This is that which he bought yesterday.
(4) which还有一种特殊用法，它可以引导从句修饰前面的整个主句，代替主句所表示的整体概念或部分概念。在这种从句中，which可以作主语，也可以作宾语或表语，多数情况下意思是与and this 相似，例如：
He succeeded in the competition, which made his parents very happy.
三、 关系副词引导的定语从句
关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。
1）when, where, why
关系副词when, where, why的含义相当于"介词+ which"结构，因此常常和"介词+ which"结构交替使用，例如：
There are occasions when (on which) one must yield. 任何人都有不得不屈服的时候。
Beijing is the place where (in which) I was born. 北京是我的出生地。
Is this the reason why (for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗？
2）that代替关系副词
that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句，在口语中that常被省略，例如：
His father died the year (that / when / in which) he was born.
他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。
I don’t like the way (that/ in which) he was treated.
This is the reason he was absent.
四、判断关系代词与关系副词
方法一：用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如：
This is the mountain village where I stayed last year.
I'll never forget the days when I worked together with you.
判断改错（注：先显示题，再显示答案，横线；用不同的颜色表示出。）
（错） This is the mountain village where I visited last year.
（错） I will never forget the days when I spent in the countryside.
（对） This is the mountain village (which) I visited last year.
（对） I'll never forget the days (which) I spent in the countryside.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。
方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。
例1. Is this museum ___ you visited a few days age?
A. where B. that C. on which D. the one
例2. Is this the museum ____ the exhibition was held.
A. where B. that C. on which D. the one
答案：例1 D，例2 A
例1变为肯定句： This museum is ___ you visited a few days ago.
例2变为肯定句： This is the museum ___ the exhibition was held.
在句1中，所缺部分为宾语，而where, that, on which都不能起到宾语的作用，只有the one既做了主句的表语，又可做从句的宾语，可以省略关系代词，所以应选D。
而句2中, 主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词where，又因 in the museum词组，可用介词in + which 引导地点状语。而此题中，介词on 用的不对，所以选A。
关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词 (who, whom, that, which, whose)； 先行词在从句中做状语时，应选择关系副词 ( where 地点状语，when 时间状语，why 原因状语) 。
五、限制性和非限制性定语从句
1) 定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，例如：
This is the house which we bought last month.
这是我们上个月买的那幢房子。（限制性）
The house, which we bought last month, is very nice.
这幢房子很漂亮，是我们上个月买的。（非限制性）
2) 当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的，例如：
Charles Smith, who was my former teacher, retired last year.
查理?史密斯去年退休了，他曾经是我的老师。
My house, which I bought last year, has got a lovely garden.
我去年买的的那幢房子带着个漂亮的花园。
This novel, which I have read three times, is very touching.
这本小说很动人，我已经读了三遍。
3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数，例如：
He seems not to have grasped what I meant, which greatly upsets me.
他似乎没抓住我的意思，这使我心烦。
Liquid water changes to vapor, which is called evaporation.
液态水变为蒸汽，这就叫做蒸发。
说明：关系代词that和关系副词why不能引导非限制性定语从句。
六、介词+关系词
(1) “介词＋关系代词“可以引导限制性定语从句，也可以引导非限制性定语从句。
“介词＋关系代词“结构中的介词可以是 in, on, about, from, for, with, to at, of, without 等，关系代词只可用whom或 which,不可用 that。
This is the house in which I lived two years ago.
Do you remember the day on which you joined our club?
(2) from where为“介词＋关系副词“结构，但也可以引导定语从句。例如：
We stood at the top of the hill, from where we can see the town.
(3) 像listen to, look at, depend on, pay attention to, take care of等固定短语动词，在定语从句中一般不宜将介词与动词分开。例如：
This is the boy whom she has taken care of.
（4） 某些在从句中充当时间，地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。
This is the house in which I lived two years ago.
This is the house where I lived two years ago.
Do you remember the day on which you joined our club?
Do you remember the day when you joined our club?
（2）Some, any, none等或数词+of+which/whom 引导的定语从句。例如
I have four books, two of which are interesting.
It’s a family of three children, all of whom I have ever taught.
七、as, which非限定性定语从句
关系代词as也可引导非限制性定语从句，其从句的谓语常是表示感知的动词，如：know, see, hear, expect等。从句可放在主句之前、之中、或之后。As可以指主句中的某个成分，也可以指整个主句，as在从句中可以作主语、宾语或表语。例如：
1） Tom, as you know, is a writer.
2） As we have seen, oceans cover more than 70% of the earth.
3） Tom doesn’t find his homework, as often happens.
4） Charlie looks strong, as in fact he is.
由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。As一般放在句首，which在句中。
As we know, smoking is harmful to one's health.
The sun heats the earth, which is very important to us.
典型例题
1）Alice received an invitation from her boss, ___came as a surprise.
A. it B. that C. which D. he
答案C. 此为非限定性从句，不能用 that修饰，而用which，it 和he 都使后句成为句子，两个独立的句子不能单以逗号连接。况且选he句意不通。
2）The weather turned out to be very good, ___ was more than we could expect.
A. what B. which C. that D. it
答案B。which可代替句子，用于非限定性定语从句，而what不可。That 不能用于非限定性定语从句，it不为连词，使由逗号连接的两个句子并在一起在英语语法上行不通。
3）It rained hard yesterday, ____ prevented me from going to the park..
A. that B. which C. as D. it
答案B.
as 和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以作主语和宾语。但不同之处主要有两点：
(1） as 引导的定语从句可置于句首，而which不可。
(2） as 代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词；若为行为动词，则从句中的关系代词只能用which。
在本题中，prevent由于是行为动词，所以正确选项应为B。
As 的用法
例1. the same… as；such…as 中的as 是一种固定结构, 和……一样……。
I have got into the same trouble as he (has).
例2. as可引导非限制性从句，常带有'正如'。
As we know, smoking is harmful to one's health.
As is know, smoking is harmful to one's health.
As是关系代词。例1中的as作know的宾语；例2中，它充当从句的主语，谓语动词know要用被动式。
八、定语从句与名词性从句的互换
定语从句和名词性从句由于表达意思的需要，有时可以互相转换。大致有下面三种情况：
（1）定语从句与表语从句的互换
That's the thing that we're worrying about.（定语从句）
That's what we're worrying about.（表语从句）
那就是我们正在担心的事。
This is the way she did it.（定语从句）
This is how she did it.（表语从句）
这就是她做这件事的方法。
This is the reason why we must go now.（定语从句）
This is why we must go now.（表语从句）
这就是我们现在该走的理由。
That is the place where Xiao Lin was born.（定语从句）
That is where Xiao Lin was born.(表语从句)
那就是小林出生的地方。
（2）定语从句与宾语从句的互换
I don't know the reason why she is so happy.（定语从句）
I don't know why she is so happy.（宾语从句）
我不知道她为什么这样高兴。
He showed me the place where he used to live.（定语从句）
He showed me where he used to live.（宾语从句）
他带我看了他曾经住过的地方。
Do you know the date when Wuhan was liberated?（定语从句）
Do you know when Wuhan was liberated?(宾语从句)
你知道武汉是什么时候解放的吗？Is he the man who/that wants to see you?
He is the man whom/ that I saw yesterday.
TA prosperity which / that had never been seen before appears in the countrysidehey rushed over to help the man whose car had broken down.
This is the very book that I want to find.
害羞的用英语怎么造句
翻译如下
用礼貌帮助的害羞的聪明的努力的英语造句如下：
在别人讲话时插嘴是不礼貌的。
It
is
not
polite
to
interrupt
when
someone
is
talking.
A
predominantly
liquid
diet
for
a
day
or
two
may
be
helpful
一两天里主要吃流质食物可能会有帮助的。
害羞的
那个害羞的孩子离群独坐一处。
The
shy
child
sat
apart
from
the
other
children.
聪明的
你真是个聪明的小家伙。
You
really
are
quite
a
clever
little
thing
努力的
这次成功是全体努力的结果。
This
success
was
the
result
of
a
collective
effort.
用从…从...从...造句
it is polite that you give up your seat to an old man.
being polite英语作文
In our daily life,I usually see some bad behavior around us.For example,I often hear people speak and laugh loudly in public.It is too noisy.Some people cut in line while others are waiting.It makes me unhappy.And in our school dining hall,I often see students waste food.At times,people seem unfriendly and offer no help when others are in trouble.For me,my parents are strict with me.They often tell me to behave well.So I never drop litter about.And I never draw on the desk or on the wall.I am polite to old people.
I think if everyone can think more of others,we’ll have a better living environme.
中文：
在我们的日常生活中，我经常看到一些不好的行为在我们周围。例如，我经常听到人们说话和大笑。太吵了。一些人插队当别人等待。这使我很不高兴。和我们学校的食堂，我经常看到学生浪费食物。有时，人们似乎不友好、不帮助别人有难时。对我来说，我的父母对我很严格。他们经常告诉我要好好表现。所以我从不乱扔废物。我不画在桌子上或墙上。我对老人有礼貌。
我想，如果每个人都能多为别人着想，我们会有一个更好的生活环境
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