2015中考英语《动词不定式》讲解课件

动词不定式

动词不定式的结构肯定： to + V.原 或者 (to)+ V.原否定：not/never + (to) + V.原 1) He likes to read novels. 2) I saw him come. 3) We decided not to buy that house. 4) It is interesting to fly a kite. 5) Please let him not go there.

作主语To hear your voice is so nice. It is so nice to hear your voice. To study hard is very important. It is very important to study hard. 注意:不定式作主语时，通常用it作形式主语， 把真正的主语放在后面。

1、It is +adj. for/ of sb. to do sth.

作主语It +be + adj. +for/of sb. to do sth.

for: adj. 多 为 描 述 不 定 式 行 为 的 特 征 (important/ necessary / interesting 等.) of: adj. 多为 描述主语的品质特征 (kind / nice / friendly / wise / foolish 等.)It is easy _______ for her to learn English well. of It is clever ________ you to solve the problem.

作主语2、It takes sb. some time to do sth.我每天花去三个小时完成家庭作业。 It takes me three hours to finish the homework every day. I spend three hours finishing the homework every day.

作主语3、It is + n. (for sb) to do sth.

It is my pleasure to help you with your English.

作主语4、用在谚语中

To see is to believe. To say is easy, but to do is hard.

练习for 1、It is necessary ______us to learn to wait.(of/for)2、It was careless ______me to break the cup . of

(of/for)

to buy 3、It took them 1,000 yuan _________thistable. (buy)

to carry the box for you. 4、It is my pleasure _________(carry)