题目内容
Study the following diagrams of the rainfall(雨量)carefully and answer the questions below.
1.Which city has the most rainfall.'?
A.Harbin B.Beijing C.Wuhan D.Guangzhou
2.From the diagrams we know the rainfall is heavy from _____to_____,covering80%of the year′s amount(总量).
A.April;August
B.June;October
C.May;September
D.March;September
3.We know _________ from the diagrams.
A.Beijing has the least rainfall
B_山e north has much more rainfall
C.Guangzhou gets the most rainfall
D.the south has much more rainfall
4.Beijing gets ________ rainfall than ___________.
A.a little more;Guangzhou
B.1ess;Harbin
C.far more,Wuhan
D.1ess;Wuhan
5.Which of the following is true according to the diagrams?
A.The rainfall in Harbin and Beijing is the heaviest in July of the year.
B.The rainfall of Guangzhou in May is as heavy as in June.
C.The rainfall in Wuhan is about the same in May and July.
D.There is enough rain in the east,but little rain in the west.
DCDDC
Noise can be caused by many kinds of machines, such as motorcycles, jet planes, tractors and so on. And, to some people, rock bands are also noise.
What happened to people who live near noisy machines or use them over a period of time? Doctors find that these people have trouble in sleeping, But, most important, constant loud noise can cause a loss of hearing.
Scientists use a unit of measure called a decibel 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 this high level causes the greatest hearing loss.
【小题1】 From the article we know noise is ___________.
A.wanted sound | B.loud and unwanted sound |
C. all sounds that you can hear | D.comfortable sound |
A.unit that measures sound | B.kind of noise |
C.machine that makes very loud noise | D.person who hates noise |
A.help people sleep better | B.stop machine |
C. cause a loss of hearing | D.kill people |
A.noise pollution can be a serious problem |
B.rock bands are noisy |
C.noise can cause people to be mad |
D.some people hate noise deeply |