科目：初中英語 來源： 題型：
Stop. Listen!What do you hear? You may hear many different sounds. Some of those sounds may be noise. Noise is a loud or unwanted sound.
Noise can be caused by many kinds of machines,such as motorcycles,jet planes,farm tractors (拖拉機）. Rock music is also a noise.
What happens to people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble in sleeping. But,most importantly,constant(不斷的)loud noise can cause loss of hearing.
Scientists use a unit of measure called decibel (分貝） to measure the loudness of a sound. The sound of a quiet room,for example,measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at its high level(層次)causes great hearing loss.
根據(jù)材料內(nèi)容選擇最佳答案。
( ) 1. According to the passage,noise is .
A. any kind of sound
B. a loud or unwanted sound
C. all sounds that you can hear
D. terrible sound
( ) 2. A decibel is a .
A. unit that measures sound
B. kind of noise
C. machine that makes loud noise
D. person who hates sound
( ) 3. According to the passage,loud noise can
A. help people to sleep better
B. stop machines
C. cause loss of hearing
D. kill people
( ) 4. We can conclude from the passage that
A. noise is a serious problem
B. rock music isn’t noisy
C. noise is only from traffic
D. some people hate any sound
( ) 5. Studying that diagram below. would be
the quietest.
Room | Noise Level |
A | 40 - 65 decibels |
B | 35 decibels |
C | 120 decibels |
D | 130 decibels |
A. Room A B. Room B
C. Room C D. Room D
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科目：初中英語 來源： 題型：
( ) 5.—Which do you prefer, a CD player or a Walkman?
— I prefer a portable computer. (2013.十堰）
A. Both. B. Either.
C. None. D. Neither.
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科目：初中英語 來源： 題型：
( ) 5. sweets and not enough exercise will make you put on weight.
A. Too many B. Too much
C. Much too D. Many too
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科目：初中英語 來源： 題型：
( ) 1 . —Get up earlier， you’ll be late for school.
—OK,I will.
A. and B. but C. or D. so
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科目：初中英語 來源： 題型：
March 20th is World Water Day every year, According to a report from the United Nations,more than half of the world’s major rivers have serious water loss and are polluted. The Yellow River,the world’s fifth longest river,
watered some of the oldest farms on earth. But now it j has a serious problem. 1 In most of the past 35 f years,it didn’t reach the sea.
The Nile in Egypt,running 6，650 km,is the longest river in the world. 2 Now it is down to 2 billion m’ or so.Australia’s Murray River reaches the sea only every other year. One fifth ofAmerica’s Rio Grande has no water,either. 3
Mostly it’s damming (筑現(xiàn))and global (全球) warming that make rivers dry. 4 Now about 45,000 of them lie across the — world’s rivers. They hold back around 15% of the -world’s fresh water from running to the sea.
Global warming is making things worse. Warmer weather takes water away. The glaciers (冰川）are becoming smaller. 5 Global warming has had certain effects on water sources (源頭）.Droughts. happening around the world make people pay more attention to this fact.
根據(jù)材料內(nèi)容，從下面五個選項中選出能填人文中空缺處的最佳選項，使短文意思通順，內(nèi)容完整，并將其標(biāo)號填寫在下面題號后的橫線上。
A. Dams hold water to irrigate (灌慨）fields and make -power.
B. The source of the Yellow River is drying up because of it.
C. It used to carry 32 billion m’ of water a year.
D. How does it happen?
E. Its source on Qinghai-Tibet Plateau is drying up.
1. 2. 3. 4. 5.
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