（一）基礎：引導詞---who, which, that, whom,
練習1.I like cities___________are quiet and clean. 2.I prefer students _________are hard- working.
3.I hate TV shows _________ are noisy and music __________ is gentle and quiet attracts me a lot.
food __________tastes delicious is not always healthy.
e boys ___________ are playing basketballs over there are from Class Fifteen.
books ____________ are written by Lu Xun are worth reading.
town ___we visited last week is much larger than book ___ he bought is very interesting.
（二）特例：只用that的情況
1先行詞被___________或___________所修飾，或本身是______________________時，只能用 that，
2.被修飾的先行詞為 ________________________________________________等不定代詞時, 只能用 that.
3.先行詞被 _____________________________________________等詞修飾時，只能用 that，而不用 which。
4.先行詞裡同時含有______________________，如I can remember well the persons and some pictures that I saw in the room.
5. 以______________________引導的特殊疑問句，只能用that.如： Who is the girl that is crying?
練習1. I am interested in everything___ is about the 2006 World Cup.
2. Is there anything___I can do for you? 3. This is the very bike ______I lost
my surprise, he gave me nothing __ I need. is the best dictionary __ I have ever used.
6. He was the first person _______passed the exam.
talked happily about the men and books________interested him greatly.
