1)在既指人又指事物的兩個或兩個以上的先行詞後面。例如：
they are talking about the people and countries that they had visited.
2)在限制性定語從句中有形容詞最高階的先行詞後面。例如：
he is the best student that i have ever met.
3)在以“it is...”,“it was...”等開頭的強調句中，和相應的疑問句中。如：
what is it that he wants?
4)在only, all, little的後面
this is all that i know.
5)在no, every, some和any等詞後面，也包括在它們的複合詞在內。如：
there is no person that is always in the right.
is there anything that i can do for you?
近義詞辨析
beautiful, good looking, handsome, lovely, pretty
這組詞均含有“美麗”、“漂亮”、“可愛”的意思。
beautiful
指能不僅給人帶來感官上的快樂，而且通過感官產生思想和靈魂的愉悅，在同類詞中層次最高。
she was even more beautiful than i had remembered.她比我記憶中的她更漂亮了。
good looking
不如handsome, pretty意思強烈，指一般的“好看”或“悅目”。
that good瞝ooking young man visited the house once or twice a week.那個長相不錯的年輕人一星期光顧一兩次。
handsome
通常是一種客觀的不帶感情色彩的'評價。一個人如被形容為handsome,是指此人外貌符合觀察者的要求，但不激發更深層的感受。
he looked very handsome in his dark suit.他穿深色西裝顯得非常英俊。
lovely
比感官的快樂更進一步，是強調純粹情感上的愉悅，指覺得某人或某物“可愛”。
mary has two lovely daughters.瑪麗有兩個可愛的女兒。
pretty
pretty也是“漂亮、可愛”的意思。很少形容大而有影響力的事物，多形容事物不以其優秀、完美而以小巧、優雅、精緻見長，使人容易接受並喜愛。
her boyfriend believes that she is the prettiest girl in the town.她男朋友覺得她是鎮上最漂亮的女孩。
