21 be afraid to do (of sth 恐惧，害怕…… eg : I'm afraed to go out at night I'm afraid of dog

　　22 be allowed to do 被允许做什么

　　eg: I'm allowed to watch TV 我被允许看电视 I should be allowed to watch TV 我应该被允许看电视

　　23 be angry with sb 生某人的气 eg : Don't be angry with me

　　24 be angry with(at) sb for doing sth 为什么而生某人的气

　　25 be as…原级…as 和什么一样 eg : She is as tall as me 她和我一样高

　　26 be ashamed to

　　27 be away from 远离

　　28 be away from 从……离开

　　29 be bad for 对什么有害 eg : Reading books in the sun is bad for your eyes 在太阳下看书对你的眼睛不好

　　30 be born 出生于

　　31 be busy doing sth 忙于做什么事 be busy with sth 忙于……

　　32 be careful 当心；小心

　　33 be different from…… 和什么不一样

　　34 be famous for 以……著名

　　35 be friendly to sb 对某人友好

　　36 be from = come from 来自 eg ：He is from Bejing He comes from Bejing Is he from Bejing ? Does he come from Bejing ?

　　37 be full of 装满……的 be filled with 充满 eg: the glass is full of water the glass is filled with water

　　38 be glad+to+do/从句

　　39 be going to + v(原) 将来时

　　40 be good at(+doing) = do well in 在某方面善长， 善于……