need的用法：need可以作為名詞，表示需要、必須，常用詞組有：meet a need、financial needs。need可以作為動詞，表示應該或不得不做，後面接動詞原形或to do，比如need to do sth。
need的例句
There is no need for you to get up early tomorrow.你明天不必早起。
I had no need to open the letter─I knew what it would say.我沒必要拆開那封信——我知道里面會説些什麼。
The house is in need of a thorough clean.這房子需要來個大掃除。
You needn't finish that work today.你不必今天做完這項工作。
You needn't have hurried (= it was not necessary for you to hurry, but you did) .你當時不必這麼匆忙。
I need hardly tell you (= you must already know) that the work is dangerous.這工作很危險，這就不用我説了。
If she wants anything, she need only ask.她想要什麼東西，只要開一下口就行了。
All you need bring are sheets.你需要帶的就是牀單。
