西安五粮液专卖:need doing 和 need to do 有什么区别?

来源:百度文库 编辑:高校问答 时间:2024/04/27 01:13:04

“need”作为实义动词时,通常用法是:

人+need +to do

物+need +doing

物+need +to be done

need有两种词性,就是情态动词和实意动词,情态动词后接动词原型,实意动词后接两种,need doing形似主动,意义表被动可以等于need to be done.
The flower needs watering 等于The flower needs to be watered.
need to do表示主动,I need to go to school.
情态动词多用于疑问句和否定句
实意动词多用于陈述句.

need doing=need to be done
need to do need作实意动词是表主动

need doing表被动
need to do need表主动