一、根据句意,填上合适的连接词。
1. They don't know ______ to go or wait.
2. She said ______ it wouldn't matter much.
3. He always doubts ______ he can do it better.
4. Jim told me ______ he didn't go fishing yesterday afternoon.
5. I want to know ______ you will come back at 8:00 tomorrow.
6. We are talking about ______ we'll go back tomorrow.
7. I am sure ______ you are very busy these days.
8. Sometimes I'm careless. I wonder ______ I can be more careful.
9. We haven't decided ______ we'll go shopping tomorrow.
10. Sandy is asking ______ Millie will come. ______ she comes, please call her.

1. whether 2. that 3. whether/if 4. that 5. if/whether 6. whether 7. that 8. if/whether 9. whether/if 10. if/whether; If

1. I can't decide take part in the activity.
2. Jeff asked his students they it is important to protect the earth.
3. I can't stop wondering be willing to help me.
4. The policeman warned us be dangerous to swim here.
5. Mr Wu me someone waiting for outside.

1. if/whether I should 2. if/whether; knew 3. if/whether Tom will 4. that it could 5. told; that; was; me

()1.Many people think ______ the windy yard(有风小院) in the TV play Meet Yourself is well worth ______.
A.whether; visiting
B.that; a visit
C.if; a visit
D.that; to visit

B

( )2.Before you ask someone for help, find out ______ he is the right person for your problem.

A.since
B.that
C.whether
D.unless

C 【点拨】句意:在你向别人寻求帮助之前,先弄清他是否是解决你问题的合适人选。since 自……以来;that(没有实际意义)引导宾语从句;whether 是否;unless 除非。故选 C。

()3.In the past, people didn't know that the earth ______ around the sun.
A.will move
B.moved
C.would move
D.moves

D 【点拨】“地球绕着太阳转”是客观事实,用一般现在时。故选 D。