动词不定式
1、to加动词原形构成一种非谓语形式，在这里不是介词，无词义。
如：I want to make a New Year card. 我想制作一张新年贺卡。
Would you like to have a picnic with us? 你愿意和我们一起去野餐吗？
2、to保留原来动词的一些特征，它可以带自己的宾语和状语等。
如：To get there faster, you can take bus No.5. 想快一点到那儿，你可以坐5路车。
3、to前有时带疑问词what, when, where, which, why, how等。
如：He’s asking Yang Ling how to get there. 他正在问杨玲怎样到达那里。
总而言之，一定要记住：to后面用动词原形。
练一练：
1、用扩号中所给动词的适当形式填空。
1) People would like________( go ) to farms in the countryside.
2) It’s time ________ ( have ) lunch
3) I want ________ ( buy ) some presents for my friends.
4) The thief began ________ ( run ).
5) Please shouw me how________ ( go ) to the shopping centre. 6) Would you like ________ ( join ) us?
7) Don’t forget________ ( write ) ―Happy New Year‖.
8) She was very glad________ ( see ) them.
9) Please remember________ ( close ) the windows before you go home.
10) I’m sorry________ ( hear ) that.
2、圈出下列句子中的错误，并改正。
1) Would you like go camping with us?
2) Helen, show ux how drawing a square.
3) I want to writes a letter to my penfriend.
4) It’s time for us go to school.
5) Liu Tao wants to showing Peter’s photos to his mum.