一、选用方框中所给连词填空。
before after when while
1. The children asked some questions ______ the teacher left the classroom.
2. ______ I was writing a letter last night, he was chatting with his friends on the Internet.
3. They were playing tennis ______ it began to rain heavily.
4. Rebecca went to bed ______ she got home because she was so tired.
5. People should be very careful ______ they cross busy roads.
6. Paul found somebody's wallet on the ground ______ he was walking to the bus stop.

before
; While
; when
; after
; when
; when/while

二、按括号内的提示或要求完成句子。
1. He was born. His grandparents looked after him. (since)
______
2. Tom left. The rain stopped. (not... until)
______
3. 一直走到你看到一座白房子为止。（翻译）
______

His grandparents have looked after him since he was born.
; Tom didn't leave until the rain stopped.
; Walk till/until you see a white house.

三、用 as soon as 或 whenever 填空。
1. It started raining _______________ we got out of the car.
2. You are welcome to come and stay with us _______________ you like.
3. _______________ he wakes up, he checks his phone for messages.
4. _______________ I see them, they are always talking about football.
5. I'm going to have a shower _______________ I get home.
6. Tom will be back tomorrow. I'll give him the message _______________ I see him.

as soon as
; whenever
; As soon as
; Whenever
; as soon as
; as soon as

综合运用
四、单项选择。

( )1. —Learning to love is like learning to walk.
—Yes. ______ we step out bravely, we can find it easy.
A. Although B. When C. Unless D. Until

B

( )2. (2023·天津)You should turn off the lights ______ you leave the room.
A. until
B. before
C. although
D. so

B