题目内容
4. Look!The black smoke is (污染)the air. We should stop it.
4. polluting
Noise Pollution Stop!Listen!What do you hear? You may hear many different sounds. Some of those sounds may be noisy. Noise is loud or unwanted sound.
Noise can be caused by many kinds of machines,such as motorcycles,jet planes,tractors (拖拉机)and so on. And,to some people,rock bands also cause noise.
What happens to people living near noisy conditions? Doctors find that these people have trouble in sleeping. But most seriously,constant (持续的)loud noise can cause a loss of hearing.
Scientists measure the loudness of a sound by decibel (分贝).The bigger the number of decibel is,the noisier it will be. The sound of a quiet room,for example,measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from the traffic and some rock bands can measure over 120 decibels. Noise at this high level causes the greatest hearing loss.
根据短文内容,完成下列任务。任务一:将画线部分译成汉语。
1.
任务二:根据短文内容,回答下列问题。
2. What is noise?
3. What can cause noise?
4. According to the passage,what can loud noise cause?
任务三:根据短文内容,选择最佳答案。
( ) 5. Study the chart below. Which room would be the quietest?
RoomNoise Level
A 35 decibels
B 120 decibels
C 130decibels
D 40 decibels
( ) 4.——What are you looking for,Michael?
—My cousin's MP3 player. It right here just now and now it's
!
A. has been;gone
B. was;gone
C. was;going
D. is;going
( ) 2. ―Is there important in today's newspaper?
——Nothing special.
A. everything B. nothing
C,something D. anything
4. I'm very t and I want to get something to drink.
( ) 9. ―Would you like something to drink?
―No,thanks. I'm not .
A. hungry B. thirsty
C. tired D. free
5. 这片树林里以前有很多小鸟,可现在都不见了。
There used to be many birds in the woods,but now they_________.
1. Our English teacher asked us to make a s with the new word.
5. Zhang Ming couldn't take part in the sports meet because of his leg w