非谓语动词 语法讲解非谓语动词的类型:Infinitive 不定式Gerund 动名词Participle 分词Structure : to be doneInfinitive:to doNegative (否定): not to doPassive voice:(1). 主语 Subject不定式作主语时,往往放在谓语之后,用it作形式主语.To get enough sleep at night is important.It_.It is adj. (for sb) to do sth.It is + a pleasure/an honor/a pity to do.It takes sb +time to do.is important to get enough sleep at night1.吸烟对你来说是不好的。It is not good for you to smoke. 2.和你一起共进晚餐很愉快。It is a pleasure to have dinner with you.It only took two years to complete the proje
