be/强biː; 弱bɪ/

v.

➊ used to say sth about a person, thing or state

➋ used to form the continuous tenses

➌ used to form the passive

否定缩略式

isn't/'ɪzənt/

aren't/ɑːnt $ ɑːrnt/

wasn't/'wɒzənt $ 'wɑːzənt/

weren't/wɜːnt $ wɜːrnt/

v.

➊ [L] 是；成为：[be + n.] She'smy sister. 她是我的妹妹。

◇[be + prep.] The books are on the desk. 书在桌面上。

◇[be + a.] The picture is beautiful. 画很漂亮。

◇[be + ad.] Nobody is there. 那儿没人。

◇[be + doing/to do sth] The problem is finding/to find a solution. 问题是找到一个解决办法。

◇How much is the bag? 这个书包多少钱？

◇[用于祈使句] Be quiet! 安静！

➋ [A] [用于构成进行时]：They're working. 他们正在工作。

◇The window is being painted. 窗户正在上油漆。

➌ [A] [用于构成被动语态]：I haven't been told what to do. 我还没被告知做什么。

be to do sth 表示安排、命令、义务等：We are to meet at the school gate. 我们约定在校门口碰头。

◇You are to be home by 8 o'clock. 你得在8点钟前回家。

同音 b; be; bee

用法be的各种形式

❖ 现在时

I am/强æm; 弱əm/或ɪ'm/aɪm/

you are/强ɑːr $ ɑːr; 弱ər $ ər/

或you're/jɔːr, jʊər $ jɔːr, jʊr/

he is/ɪz/或he's/强hiːz, 弱hɪz/

she is或she's/强∫iːz, 弱∫ɪz/

it is或it's/ɪts/

we are或we're/wɪər $ wɪr/

they are或they're/ðeər $ ðer/

❖ 过去式

am/is → was/强wɒz $ wɑːz; 弱wəz/

are → were/强wɜːr $ wɜːr; 弱wər $ wər/

❖ 现在分词 being/'biːɪŋ/

❖ 过去分词 been/biːn/

辨析be + v. -ed; get + v. -ed

辨析be about to do sth; be going to do sth; be to do sth