定語從句是使用頻率非常高的一種句型，掌握起來相對容易。但是，在實際寫作的過程中，同學們在這個部分還是會犯一些基本的語法錯誤，影響到最後的分數。下面小編爲大家分享定語從句作文例句，歡迎大家參考借鑑。
一、用法不當
很多中國考生認爲因爲which使用次數更少，所以在定語從句中which會比that使用分數更高，這其實是一個誤區，因爲which不能取代that在所有的定語從句中的使用。
A.可共用的地方——指代一般物
例如：
The amount of the rubbish that we produce is increasing at an alarming rate.
在這句話中，that就可以用which取代，而且建議考生當that和which在定語從句中充當賓語的情況下能省略就省略。
再如：
The problem thathas been under debate for several decades is that the basic facilities andinfrastructure are unlikely to satisfy the needs of more tourists.
B.不能共用的地方——只能用which，不能用that
例如：
Students living in their own homes would live a morecomfortable life and have more opportunities to communicate with their parents,which has a beneficial impact on thedevelopment of their personal character.
再如：
Television, the most pervasive means of entertainmentfor the average public, is advancing towards an entirely new era, an era ofextraordinary sophistication and versatility, which is likely to reshape the world.
在這兩句話中，which都是不可以用that取代的，因爲which在文章中指代的是前面的整句話，所以which後面的謂語動詞用的也是單三形式。當which在從句裏面用來表示前面整句話造成的'影響時，which前面要用逗號，謂語動詞用單數。
C.只能使用that，不能使用which的地方
1. 當先行詞爲all、little、much、few、everything、none等不定代詞時關係代詞用that而不用which。
Many people hold the view that they can do nothing to protect thefragile environment, and everything thatdoes have good impacts on the environment can only be implemented with thepolitical will.
There would be few thatcould pursue a career without future.
2. 當先行詞既有人又有物時，關係代詞用that，不用which。
There are a great number ofignorant people and large companies that sacrifice the environment to getthe maximum profits.
The most important thing is concerned with the reaction of workers and factories thatdo not agreewith this new scheme.
3. 當先行詞有形容詞最高級修飾時，關係代詞用that，而不用which。
Many people have extraordinary willingness to bombard their brainswith new experiences, while others avoidthe latest things that they think would make them have the feeling of fear.
4. 當先行詞有序數詞修飾時，關係代詞用that，不用which。
The first sight that wascaught at the Great Wall has made a lasting impression on him.
The first impression that you leave to the interviewer is the most important thing thatdetermines whether you are admitted by the company.
5. 當先行詞被the only, the very, the same, the right等修飾時，關係代詞用that，不用which。
Travelling exposes the students to a variety of cultures andnatural beauty by themselves, the very experience that school educationcannot provide to them.
This is the very hotel that we lived last year.
6. 當先行詞被all, every,any, much, little, few, no等修飾時，關係代詞用that，不用which。
Much of the blame that needs to betaken should be placed on tourists themselves, who foolishly clambered all over the revered Buddhastatues.
Every child that has auditory deficitwould have difficulty in learning to reach the maximum potential.
7. 當主句是以which開頭的特殊問句時，定語從句關係代詞一般用that而不用which.
Which of the books that had pictures was worth reading?
Many people wonder which of the problems that theyare facing is the most pressing one and should be researched and solvedimmediately.
8. 指代人時，只可以使用that以及who，而不可以使用which。
In my opinion, there are plenty of opportunities foreveryone in our society, but only those thatare adequately prepared and highly qualified can make full use of them.
that不可以用which取代，因爲that前面的先行詞是人，所以只能用that或者who來引導。
9. 在強調句型“It is ... that ...”中，只用that，不用which。
It is the lack of financial incentive thatis responsible for the shortage of talents in the athletic field.
It is talent that determineswhether a person can succeed in any field, particularly in the artistic andmathematic field.
二、缺乏將定語從句轉換成高分的方法
定語從句高分的用法——將定語從句轉換成非謂語動詞，修飾前面的先行詞
例如：Those people who strongly support capital punishment havethe following reasons.
改成：Those people strongly supporting capital punishmenthave the following reasons.
再如：Those students who study in a foreign country seem tobe more self-confident, independent and well-informed.
改成：Those students studying in a foreign country seem tobe more self-confident, independent and well-informed.
將從句中的關聯詞who去掉，從句的謂語動詞變成了ing形式
例如：The buildings that were knocked down several years ago arewith neither financial nor aesthetic values.
改成The buildings knocked down several years ago arewith neither financial nor aesthetic values.
Foods that areexported from a foreign market are more expensive than the local productsof the same kind.
改成Foods exported from a foreign market are more expensive than the localproducts of the same kind.
從句中的that照樣去掉，從句的謂語動詞由被動語態變成了過去分詞。
例如：The forest and bush that have been cleared for agricultureare now suffering from soil erosion.
改成The forest and bush having been cleared for agricultureare now suffering from soil erosion.
從句中的that去掉，構成完成時態的have變成having，這與主被動沒有關係。
