she is back是她回來(lái)了
back做名詞名詞 n.
1.背脊,背部[C]
Someone patted me on the back.
有人在我背上輕輕地拍了一下.
2.后部[the S][(+of)]
Grandpa and grandma sat in the back of the car.
爺爺和奶奶坐在汽車(chē)后排的座位上.
3.后面,背面[the S][(+of)]
4.椅背[the S] [(+of)]
5.(書(shū)報(bào)等的)末尾[the S][(+of)]
There is an appendix at the back of the book.
該書(shū)末尾處有一附錄.
6.(足球等的)后衛(wèi);后衛(wèi)球員[C][U]
she is a back是 她是后衛(wèi)球員 back應(yīng)是后衛(wèi)的意思請(qǐng)問(wèn)she is back中,is和back都是動(dòng)詞，為什么能連用？she is back 是主系表結(jié)構(gòu)。在這個(gè)句子中,把back看作一個(gè)形容詞．理解為”回來(lái)的，回程的”意思。此時(shí)，she是主語(yǔ),is是be動(dòng)詞作系動(dòng)詞，back為形容詞作表語(yǔ)。