be 係幾時用的和解要用呢???

2008-04-10 6:12 pm
If you want to be a fashion model, you need to be really slim

解要用 be 呢??? be 係幾時用呢????

麻煩長盡解釋, 十萬個唔該!!!!!!!

回答 (2)

2008-04-11 12:31 am
✔ 最佳答案
在英文的文法裏,有”to不定詞”(to-infinitive),這種不定詞的組成是
to+原形動詞,如:to be, to laugh, to do等等
但不定詞,也分現在式不定詞(Present infinitive)和完成式不定詞(Perfect Infinitive)
現在式不定詞的組成:to+原形動詞
完成式不定詞的組成:to+have+過去分詞:好像,to have been

那麼你可能會問,to不定詞的作用是甚麼?
不定詞的作用非常廣泛,容我簡單介紹:
1)作名詞用(稱名詞不定詞),如:
To know onself is difficult.(to know onself就是句子的主詞,也是名詞片語)
To see him is to love him(to see him是主詞,to love hime是補語,兩者也是由名詞不定詞所組成的名詞片語)
They ceased to laugh.(to laugh就是ceased這動詞的受詞,也是名詞不定詞)
2)用作形容詞用(稱為形容詞不定詞)
He is not a man to tell a lie.(=he is an honest man,而to tell a lie就是形容詞片語用來修飾man,這句子所用的是形容詞不定詞)
3)用作副詞用(稱為副詞不定詞)
I went to see him(to see him這片語就是用來修飾went這個動詞,說明去哪裏)
你的兩句示句,都是名詞不定詞,在句子中作受詞.
希望你幫到你!





2008-04-11 11:19:35 補充:
be其實有成為,變成的意思,所以你的示句(to be a fashion model)意思,就是:要成為時裝模特兒
而need to be really slim就是變得十分纖瘦

希望你明白!
2008-04-10 6:37 pm
If you want to be a fashion model, you need to be really slim.

係兩句句子裏面,be 係一個原形動詞

第一句既to be 係解作 成為,第二句既用to be 係因為be之後唔係一個動詞,係一個形容詞, 所以會加個be做動詞

eg.The weather will be sunny tomorrow.


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