要点探究
while
【感知】
» After dinner, he usually plays the guitar for a while.（教材第63页）晚饭后，他通常弹一会儿吉他。
» We can't get on or off a bus while it is moving. 当公共汽车正在行驶的时候我们不能上下车。
【探究】
(1) while 作名词时，意为“一段时间；一会儿”。常见固定搭配：
for a while
一会儿
after a while 过了一会儿
(2) while 作连词时，意为“在……期间；当……的时候”，表示两个动作相伴随而发生。
【应用】
①完成句子：让我休息一会儿。
Let me rest
for
a
while
.
②单项选择：(河北中考) I love to listen to rock music
A
I am running.
A. while B. after C. since D. until
答案：(1) 一会儿
① for a while
② A
【应用】
(1)请用顺读法写出下列时间
①$3:00$
three o'clock
②$5:10$
five ten
③$6:30$
six thirty
④$4:50$
four fifty
(2)请用逆读法写出下列时间
①$6:10$
ten past six
②$9:30$
half past nine
③$10:50$
ten to eleven
④$8:15$
a quarter past eight
⑤$4:45$
a quarter to five
答案：(1) ① three o'clock
② five ten
③ six thirty
④ four fifty
(2) ① ten past six
② half past nine
③ ten to eleven
④ a quarter past eight
⑤ a quarter to five
