记得学习由when引导的定语从句
英语，最早被中世纪的英国使用，并因其广阔的殖民地而成为世界使用面积最广的语言。下面是为大家整理的由when引导的定语从句，欢迎阅读与收藏。
when 可以引导很多从句：
1.宾语从句：例如 I don`t know when he left here.我不知道他上面时候离开的.此时when作连接词引导宾语从句.
2.定语从句：例如 He left his hometown in that year when his father died.他在他父亲死的那一年离开了他的家乡.此时when作连词修饰that year,引导定语从句.
3.状语从句：例如 He will go to the doctor`s when it is sunny.当天晴时,他就会去看医生.此时when引导状语,意思是“当...时候”.
4.主语从句：例如When he left here is a question.他上面时候离开这儿的还没有人知道.此时when引导主语从句,意思是“什么时候”
附：由“介词+关系代词”引导的定语从句
1. 由“介词+关系代词”引导的定语从句主要用于正式文体，在非正式文体中通常将介词放至句末。如：this is the man to whom i referred. 我指的就是这个人。this is the man (whom) i referred to. 我指的就是这个人。
2. 直接用于介词后作宾语的关系代词which不能换成that，直接用于介词后作宾语的关系代词whom不能换成who。但若介词用于句末，则用作宾语的which, whom也可换成that, who，或者省略不同。如：这是一个我们讨论了许多的问题。this is a subject about which we have talked a lot.(which不能换成that，也不能省略)this is a subject which we have talked about a lot. 这是一个我们讨论了许多的问题。(which可以换成that，也可以省略)
3. 关系副词when, where, why根据情况有时可换成“介词+关系代词which”。如： that is the day when [=on which] he was born. 那就是他出生的日子。that is the house where [=in which] he lived. 那就是他住过的房子。that is the reason why [=for which] he must apologize. 那就是他必须道歉的原因。
4. 在很正式的文体中，“介词+关系代词”引导的定语从句可紧缩成“介词+关系代词+不定式”结构。如：在那儿孩子们有个玩耍的花园。正：there the children had a garden in which to play. (很正式)正：there the children had a garden in which they could play. (较正式)正：there the children had a garden to play in. (较口语化)注：这类“介词+关系代词++不定式”结构中的介词不能没有，也不能放在句末。如不能说there the children had a garden which to play in.
定语从句that
that常用作关系代词，可指代某人，也可指代某物，指物时有的时候可用which替换that，指人时可用who替换。但在下列情况下，一般用that。
一、that指代某物事时
1.先行词为all, few, little, much, the one, something, anything, everything, nothing等时。如：
（1）We'll do all that we can to protect the endangered plants and animals.
我们将尽我们的最大努力来保护那些濒危的动植物。
(2) There is much that I wan to tell you.
我有很多想要告诉你的话。
(3) Is there anything that I can do for you?
有什么我可以帮你的吗？
2. 先行词被all, every, no, some, any, (a)few, (a)little, much等限定词修饰时。如：
(4) You can borrow any book that you want to read in our school library.
在我们*书馆，你可以借任何你想读的书。
3. 先行词被序数词或形容词最高级修饰时。如：
（5）This is the most beautiful city that I've ever seen.
这是我见过的最漂亮的城市。
4. 先行词被the only, the very, the right, the last 等修饰时。如：
（6）This is the very factory that they visited last summer holiday.
这恰好是他们去年参观的那个工厂。
（7）This is the only painting in this style that we have.
这种风格的画我们仅有一幅。
5. 先行词是并列结构，既有人又有物时。如：
（8）He talked happily of the writer and his books that interested him.
6. 先行词前有the same 修饰，表示和先行词是同一物时。如：
（9）This is the same purse that I lost yesterday.
这就是我昨天丢的那个钱夹。
注：如果表示的.是与先行词同一类或相似的某物，则用the same…as….如：
（10）This is the same purse as I lost yesterday.
这个钱夹和我昨天丢的那个一样。
7. 先行词为数词时。
（11）Look at the books on the bookshelf. You can see the two that you bought me for my birthday.
瞧书架上那些书。你可以看到我过生日时你买的那两本。
8. 如果which引导的定语从句中又含有一个定语从句，为避免重复，第二个定语从句用that。如：
（12）They built a factory which produced things that had never been seen.
他们建了一工厂，生产以前从未见过的东西。
9. 以which作主语开头的特殊问句，为了避免重复，定语从句用that。如。
（13）Which is the bus that you will take?
你要乘的是哪一班车？
10. 关系代词在定语从句中作表语时，而且通常省略。如：
（14）My hometown is no longer the place that it used to be.
我的家乡再也不是以前那个样子了。
11. 关系代词在there be 句型中作主语时,而且常可以省略。如：
（15）This is the fastest train (that) there has ever been.
这是有史以来最快的列车。
二、that 指代某人时。
1. 泛指某人时。如：
（16）He is a man that is never at a loss.
他是一个从未一筹莫展的人。
2. 主句是以作主语的who开头的特殊问句，为了避免重复时。如：
（17）Who is the person that is talking with our headmaster?
和我们校长说话的那人是谁？
3. 先行词前有the same时。如：
（18）This is the same man that gave us a talk last year.
这和去年给我们作报告的是同一人。
4. 关系代词在定语从句中作表语时。如：
（19）He has changed. He was not the man (that) he was 10 years ago.
他变了。他再也不是10年前的他了。
另外，that也可用作关系副词，表示时间、地点、原因和方式，在口语中可以用来代替when, where, why 引导的定语从句。在以下名词day, year, time, moment, reason, place等作先行词时，可用that作关系副词引导定语从句。如：
（20）I'll never forget the day (that) I joined the League.
我永远不会忘记我入团的那一天。
（21）Is this the reason (that) they were late for the meeting?
这就是他们开会迟到的原因吗？
（22）We want to find a place (that) we can have a picnic.
我们想找一个我们能野餐的地方。
（23）This is the first time that I have been abroad for traveling.
这是我第一次到国外去旅游。
（注：先行词是time,前面有序数词或last修饰时，常用that引导定语从句或者省略。）
当先行词为表示方式的词the way时，可用that引导定语从句, that常可以省略。
（24）I don't the way you speak to her.
我不喜欢你和她说话那种方式。
转载请注明出处记得学习 » 由when引导的定语从句例句