---Don’t shout at your kid. He is only a little boy. Be more . --- Sorry, I won’t.

A.take a shower

B.sighing

C.framework

D.disable person

--- Don’t forget to come to our party this weekend!

--- _____________________________

A、You are welcome.

B、Sure. See you.

C、Not at all.

A、are you

B、aren't you

C、do yo

D、don’t you

You seldom have to do the cooking,______？

A. have you

B. haven't you

C. do you

D. don't you

— _______________？ — That’s a good idea.

A、When can you write the invitations

B、What do you think of the invitations

C、Why don’t you write the invitations now

D、Why not you write the invitations now

s. Sound has a waste product, too, in the form. of noise. Noise has been called unwanted sound. Noise is growing and it may get much worse before it gets any better.

Scientists, for several years, have been studying how noise affects people and animals. They are surprised by what they have learned. Peace and quiet are becoming harder to find. Noise pollution is a threat that should be looked at carefully.

There is a saying that it is so noisy that you can't hear yourself think. Doctors who study noise believe that we must sometimes hear ourselves think. If we don't, we may have headaches, other aches and pains, or even worse mental problems.

Noise adds more tension to a society that already faces enough stress.

But noise is not a new problem. In ancient Rome, people complained so much about noise that the government stopped chariots(战车) from moving through the streets at night!

Ways of making less noise are now being tested. There are even laws controlling noise. We cannot return to the "good old days" of peace and quiet. But we can reduce noise—if we shout loudly enough about it.

Why are scientists surprised by the findings in their noise study？

A．Because the world is becoming increasingly noisy.

B．Because they have learned that noise is also is also a kind of pollution.

C．Because noise is an unwanted waste for human beings.

D．Because people knew little about noise before.

A.Happy birthday

B.on't shout in the library

C.Thank you

A.Not bad, thank you

B.Thank you

C.on't shout in the library

D.How nice

E.It's Tom

The machine made a terrible ______ so we couldn't ______.

A、noise ... hear

B、voice ... hear

C、sound ... listen

D、shout ... listen