(5)15分可用quarter

　　4:15

　　a quarter past four 5:45 a quarter to six

　　(6)时间前通常用at.at 5 o’clock at 7:30 p.m.

　　10. want用法

　　(1)想干什么用want to do sth

　　They

　　want to join the sports club. 他们想加入运动俱乐部。

　　(2)第三人称单数作主语，want要作变化①He wants to play basketball.

　　②Li Xia wants to play the piano.

　　(3)变疑问句，否定句要借助助动词do或does.

　　①-Do

　　you want to play soccer ball ?

　　-Yes, I do . / No , I don’t.

　　②-Does he want to go home by bus ?

　　-Yes, he does . / No , he doesn’t.