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题文

Snow-melting Agent
A heavy snow can kill pests and this means a good harvest next year.This will bring as well as trouble to urbanites.
On Nov.16,2003,a cold air current brought a heavy snow to Beijing.To prevent traffic jams,related government departments mobilized people to clear off snow on streets.
One of the most effective ways to clear off snow on roads is to scatter snow-melting agent on the roads.The major component of the snow-melting agent is salt.The snow-melting agent can make snow stop from freezing,make it easier to clear off the road,and allow traffic to flow smoothly.But it also brings about some hidden dangers.In the spring of 2003,over 300 000 trees in Beijing urban districts died.After analyzing soil around these trees,experts discovered that the salt content of these soils was 392 times higher than normal.Where did the excessive salt come from?After investigating,forestry experts found that when clearing snow in the winter,people usually heap snow containing snow-melting agent at trees’ roots,and that when the snow melts,this agent penetrates the soil and increases its salt content.The snow-melting agent indirectly killed the trees.
Statistics show that during a heavy snow in 2002,over 1000 tons of snow-melting agent was scatterred on streets in Beijing.Snow water containing a large amount of snow-melting agent got into the soil through sewers.
In addition,salt in the snow-melting agent can expedite the corrosion of steel bars in concrete buildings and cause the concrete to crack and peel,shortening the life of roads.
Scientists and government officials are required to solve traffic problems caused by heavy snows as soon as possible and at the same time try to reduce the negative effects of the snow-melting agent.This is a difficult problem placed before them.Related authorities have framed some local criteria to regulate the production and use of snow-melting agents.
Now,more harmless snow-melting agents are being developed.Now that even snow-melting agents that meet today’s criteria must still be used carefully,we have to rely more on our manpower and machines to clear off snow.
This year,in addition to using snow-melting agents,Beijing will use a large number of snow vehicles to clear snow on roads.In more places,citizens are mobilized to clear snow with their hands.This may be a test of a city’s civilization level.
Salt is a snow-melting agent while _________ is a cleaning agent.

A.water B.soap C.a washing-machine D.a housewife

The third paragraph of the text is mainly about _______.

A.the side effect of snow-melting agent
B.a case of damage to trees caused by snow-melting agent
C.the results of using snow-melting agent
D.the uses of snow-melting agent

According to the text,the most practical way to clear off snow is to _________.

A.use snow-melting agent as much as possible
B.only use more harmless snow-melting agent
C.encourage people to clear snow with their hands
D.use more snow vehicles

This text most probably appears in_________.

A.a newspaper B.a magazine on latest findings
C.a book on salt D.a magazine on environmental protection
科目 英语   题型 阅读理解   难度 容易
知识点: 日常生活类阅读
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A.She has been living with her father.
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C.She can’t search for her father without being watched.
D.She suffers from Alzheimer’s disease.

When people suffer from Alzheimer’s disease, ________.

A.their families and friends will suffer from the same disease
B.their families and friends will experience mental sufferings
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Memory loss occurs ________.

A.from Alzheimer’s disease and nothing else
B.from sadness, shock, anger, and so on
C.for a number of reasons
D.with changes in personality

From the passage we know that .

A.early treatment may stop Alzheimer’s disease occurring
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C.nerve fibers in the brain will cause Alzheimer’s disease
D.when one suffers from Alzheimer’s disease, he will be buried

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A.Putting many things on the floor.
B.Wearing a new kimono.
C.Dancing a waltz.
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In many countries you can ________ when you reach the age of eighteen.

A.join the army
B.have a key
C.have a special ceremony
D.have special sweets

Which of the following sentences is NOT true?

A.The tradition of birthday parties started a long time ago.
B.Some birthday traditions are only found in certain countries.
C.You become the owner of your house at the age of fifteen.
D.In many countries you have the right to vote at the age of eighteen.

Which is the best title of this passage?

A.Birthday Traditions around the World
B.Chinese Birthday Celebrations
C.Japanese Special Celebration
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NEW YORK PLUMBING(管道) & HEATING
Since 1968
Plumbing and Heating Fixing
LARGE OR SMALL
24 Hours 7 Days Service
Tel: 56568833
268 Pine Street 5th Avenue
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A.“Since 1968” B.“24 Hours 7 Days Service”
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You’re standing with your classmates. Everyone is talking—except you. Perhaps you’re afraid they will laugh at what you say. Or maybe you just aren’t brave enough to speak.
I’ve been there, and so have many other people all over the world. Shyness is like a snake that crawls(爬进) into our mouths and stops us speaking. But we shouldn’t let it stay there.
I am 29 years old. Even today, that snake still sometimes visits me. But when I was in high school, I was so shy that I wouldn’t talk to anyone except my parents and best friends. If a stranger asked me the way to a local shop, it was as if I’d forgotten how to talk.
One summer, I got a job in a restaurant and that helped a lot. It meant I had to talk to customers. I had to tell them how much their meal cost. I had to ask them if they wanted to drink Coke or Sprite. I had to tell the people in the kitchen if someone wanted pickle(泡菜)on their sandwich.
This job taught me how to speak with people.
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If you do these things for a while, the “shyness” snake will soon begin to leave you alone. It’ll look for another mouth to crawl into.
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A.show that everyone has the right to speak in class
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C.introduce the fact that many people have a shyness problem
D.argue that it is alright to keep silent in public

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A.cooking the meals for customers
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A.Shy early teenagers.
B.College students.
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D.People who need a part-time job.

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