Unit 12 Art and literature
（5）其它注意事項：
① 在定語從句中做主語的who, which 或that后的動詞的數應根據先行詞的人稱和數來確定；
i want a girl who knows english.
i want three girls who know english.
he is one of the greatest men that are known to everyone.
he is the only one of the students who has been to canada.
② 關系代詞做介詞的賓語時，介詞可置于whom 或which的前面或句末，但關系代詞that不可直接放在介詞之后做賓語；
is this the car for which you paid a high price?
= is this the car which you paid a high price for?
= is this the car that you paid a high price for?
= is this the car you paid a high price for?
③ 關系副詞 ＝ 介詞＋which(關系代詞)
where = in/at which when = at/in which why = for which
i can still remember the sitting-room where/in which my mother and i used to sit in the evening.
但為表意清楚，在關系副詞where/when前可加介詞from 或 to等。
china is the birthplace of kites, from where kite flying spread to japan, korea, thailand and india.
④ that可代替關系副詞when, why等，或省略。
┏ in which he
i am quite satisfied with the way ┣ that he has done it.
┗ he
2) 動詞不定式
(1) 構成與特征
動詞不定式事動詞的一種非限定形式，由“to + 動詞原形”構成，在句中起名詞、形容詞或副詞的作用，同時也保留動詞的一些特征，可以帶賓語或狀語。
例：he tried to work out the problem in five minutes. 他試圖在五分鐘之內算出這道題。（帶賓語和狀語）