句子的两大表达模式：

主+系+表: I am a student. (名词作表语)

          He is here.(副词作表语)

          We are in the classroom.(介词短语作表语)

          Who are you?(代词作表语)

          It is fine.(形容词作表语)

          I am twelve.(数词作表语)

          The door is closed.(过去分词作表语)

主+谓     自发 The sun shines.

          I get up in the morning.

主+谓+宾   He drinks milm.

          I learn English.

主+谓+宾+宾  He gives me an apple.

             They tell us a good news.

             My mum brings me some food.

主+谓+宾+宾补  He wants her to help him.

               主  谓   宾    宾补 

come lend repeat show shut wait

1 Do you want to go alone or do you want me to come with you?

2 Have you got enough money or do you want me to lend you some?

3 Shall I leave the window open or would you like me to shut it?

4 Do you know how to use the machine or would you like me to show you?

5 Did you hear what I said or do you want me to repeat?

6 Can I go now or do you want me to wait?

   want=would like  I want to go. I would like to go.