關(guān)系代詞在從句中充當(dāng)?shù)某煞钟校褐髡Z、賓語、定語、表語（作表語的時(shí)候不是很多）
1.He is no longer the man （that） he was.他已經(jīng)不是過去的他了.
2.He will become the man which the Party wants him to be.他將成為黨所期望的那種人.
that在定語從句中作表語時(shí)的省略.
說明：關(guān)系代詞作be 的表語,且先行詞是特指時(shí),關(guān)系代詞通常用that(不用who或which)或省略
She was not the beautiful girl (that) she used to be.她已經(jīng)不是過去那個(gè)漂亮姑娘了.
但如果先行詞是泛指時(shí),關(guān)系代詞通常用which,且不省略：
He looked like a teacher which he was.他像個(gè)老師,而他也的確是個(gè)老師.