17 be /feel confident of sth /that clause +从句 感觉/对什么有信心，自信
eg : I am / feel confident of my spoken English I feel that I can pass the test
18 be + doing 表：1 现在进行时 2 将来时
19 be able to (+ v 原) = can (+ v 原） 能够……
eg : She is able to sing She can sing
20 be able to do sth 能够干什么 eg :she is able to sing
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