一、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.

1. before 2. While 3. when 4. after 5. when
6. 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。(汉译英)______

1. His grandparents have looked after him since he was born.
2. Tom didn't leave until the rain stopped.
3. 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.

1. as soon as 2. whenever 3. As soon as
4. Whenever 5. as soon as 6. as soon as

( )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 【点拨】although 虽然；when 当……的时候；unless 除非；until 直到……为止。根据“we step out bravely, we can find it easy”可知，当勇敢地迈出第一步时，会发现它很容易。故选 B。

( )2.(2025·江苏徐州市区期中)Time waits for no man. But some people won't realize the value of time ______ it's gone.

A.since
B.until
C.whenever
D.while

B 【点拨】since 自从；until 直到……为止；whenever 无论什么时候；while 当……时。根据“But some people won't realize the value of time ______ it's gone.”可知，此处表示“有些人直到失去时间才意识到时间的价值”。not...until 直到……才。故选 B。

( )3.—Are you happy with your work, Amy?
—Sure. ______ I complete a task, I feel a real sense of achievement.

A.Until
B.If
C.Whenever
D.Unless

C 【点拨】until 直到……为止；if 如果；whenever 每当；unless 除非。根据“I complete a task”可知，应该说“每当”完成一项任务，都会有一种真正的成就感。故选 C。

( )4.—I want to go to the concert later on. Would you like to join me?
—With pleasure. ______ I finish the work, I'll call you.

A.Unless
B.Though
C.After
D.Since

C 【点拨】unless 除非；though 虽然；after 在……之后；since 自从。根据“I finish the work, I'll call you”可知，前半句是一个时间状语从句，空处表示“在……之后”。故选 C。