“who”和“that”在从句中可作主语和宾语
They are the people that/who were seen yesterday. 昨天那些人被看见了 （在从句中作主语）
They are the people whom/that/who I saw yesterday. 他们是昨天我看见的那些人 （在从句中作宾语）
They are the people whose wallets were lost yesterday. 他们是昨天丢失钱包的那些人 （属格）
b.先行词是动物/事物的话，用which,that,whose来引导定语从句。which,that在从句中可作主语和宾语，作宾语时可以省略 He came back for the book which/that he had forgotten. 作宾语，他回来找那本他遗忘的书。
He came back for the book which/that was on the desk. 作主语，他回来找的那本书在桌上
This is the chair whose legs were broken. 这是那张断腿的椅子。 主格 宾格 属格
2、练习：
He was the person who/that joined the army that year. He came back for the book which/that或省略 he had forgotten.
He is the man whose wife is a teacher.
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指人 Who/that Whose 指物 Which/that whose Whom/who/that Which/that
第四十七讲 定语从句（关系副词）why,when,where why：用于修饰表示原因的名词 如： the reason
We don't know the reason why he didn't show up. 我们不知道他没出现的原因
when：修饰表示时间的名词 如：next week
We'll put off the picnic until next week, when the weather may be better.
我们将推迟野餐到天气更好的下周
where：修饰表示地点的名词 如：the place
We don't know the place where he lives. 我们不知道他居住的地方。 练习：
He works in a factory where TV sets are made. We'll put off the picnic until next week, when the weather may be better.
She didn't tell me the reason why she refused the offer.
第四十八讲 宾语从句的连词
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