顧名思義，定語從句就是充當(dāng)定語,，用來修飾名詞或代詞的句子,。被修飾的名詞或代詞稱作先行同，在先行同和定語從句之間通常會有關(guān)系代詞或關(guān)系副詞,，也即定語從句的引導(dǎo)詞,。常見的關(guān)系代詞有that, which, who, whom, whose，關(guān)系副詞有why, when,where,。相比其他引導(dǎo)詞引起的從句,，由that, which, who和why引導(dǎo)的定語從句在雅思寫作中使用的頻率較高。
　　由who引導(dǎo)的定語從句 　　who引導(dǎo)的定語從句可以在句子中修飾表示人的名詞或代詞,。此外,，如果who在定語從句中充當(dāng)主語，則它不能省略,。
　　It offers many conveniences to the people who live there. 　　它給居住在那里的人們提供了很多便利,。
　　Compared with those who are introverted, with little words and easy to be comedepressed, I prefer to make friends with people who would like to share happiness and sorrow with me. 　　相比那些內(nèi)向,、少言寡語且容易變得消沉的人，我更喜歡和愿意與我分享快樂和悲傷的人交朋友,。 　　They are backed up by technicians who design instruments to collect data from athletes. 　　他們背后有技師的支持,，這些技師設(shè)計(jì)工具以從運(yùn)動員那里收集數(shù)據(jù)。
　　由why引導(dǎo)的定語從句 　　why引導(dǎo)的定語從句常用來修飾先行詞reason,，why在定語從句中充當(dāng)原因狀語,。 　
　One reason why I support the building of a modern gym is that physical education class is very important to the well一being of students. 　　我支持興建一座現(xiàn)代化體育館的理由是，體育課學(xué)生們的健康非常重要,。
　　The main reason why I choose the pig is that, in my opinion, the country's most valued animal does not need to be graceful or cuddly, but rather beneficial to the average person. 　　對我而言,，我選擇豬的主要理由是，我國有價(jià)值的動物不需要很優(yōu)雅或者很可愛,，而應(yīng)該是對每個(gè)人都有用處,。
　　The reason why I chose the forests as the most important is because they help us in so many ways. By saving the forests, I believe we can also save the planet. 　　我認(rèn)為森林為重要，因?yàn)樯衷诤芏喾矫娑紝ξ覀冇幸?。通過拯救森林,，我相信我們也能夠拯救地球,。

　　以上是由廣州啟德教育小編為您整理的關(guān)于who丨why的定語從句的全部內(nèi)容,。