need 既可做实义动词,又可以做情态动词.具体区别如下 :
1. 做实义动词时,有两个词组:
need to do sth. 需要做某事
need doing sth. 某物需要被~~~ 等于need to be done sth.
2. 做情态动词时只能用于否定句,如:sb. needn't do sth. 不能用于肯定句,绝对不可能出现在用法是:sb. need do sth.
need 既可做实义动词,又可以做情态动词.具体区别如下 :
1. 做实义动词时,有两个词组:
need to do sth. 需要做某事
need doing sth. 某物需要被~~~ 等于need to be done sth.
2. 做情态动词时只能用于否定句,如:sb. needn't do sth. 不能用于肯定句,绝对不可能出现在用法是:sb. need do sth.