游客
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
登录免费查看答案和解析
相关试题

Hamsters are lovely small animals which are similar to mice,and some people 1ike to keep them as pets.They need to eat a balanced diet,or they can become very sick.That’s why hamsters should be fed healthy foods.
Most pet stores sell hamster mix.This is a combination of foods that are just right for hamsters.Some hamsters are picky eaters.They don’t eat anything they don’t like,so you have to find a hamster mix that your hamster will like.Most hamsters only eat a few tablespoons a day.You should feed them at the same time every day,or you can just keep your hamster’s bowl full.Remember to clean the bowl at least once a week.Hamsters also drink a lot of water,so be sure to keep the water supply full and fresh.
Just like people,hamsters like treats.Besides the hamster mix,you can sometimes feed your hamster seeds,nuts,and some other people food.You should never feed your hamster anything unless you are sure that it is safe for hamsters.
Feed your hamster carefully,and always take good care of your pet !
If hamsters don’t have a balanced diet,they will.

A.become sick B.drink water C.store food D.feel fresh

What does the underlined sentence “some hamsters are picky eaters” mean?

A.They pick food with tools. B.They mix food once a week.
C.They find their food in stores. D.They only eat the food they like.

What’s the passage mainly about?

A.Where to keep hamsters. B.When to buy hamsters.
C.What to feed hamsters. D.Why to raise hamsters.

Jenny was almost five. Waiting with her mother at the checkout stand, she saw a circle of white pearls(珍珠) in a box. “Oh please, Mommy .Can I have them? Please, mommy, please!”
Quickly the mother checked the back of the little box and said ,” That’s almost $2.00. If you really like them, I’ll think of some extra chores for you and in no time you can save enough money to buy them for yourself.”
Then Jenny began doing more chores at home and did housework for neighbors. On her birthday, Grandma gave her another new dollar bill and she had enough money to buy the necklace.
Jenny loved her pearls. She wore them everywhere, even to bed.
Jenny had a very loving daddy and every night when she was ready for bed, he would stop whatever he was doing and come upstairs to read her a story. One night when he finished the story, he asked Jenny, “Do you love me?”
“Oh yes, Daddy. You know that I love you.”
“Then give me your pearls.”
“Oh, Daddy, not my pearls. But you can have my Princess.”
“That’s okay, Honey. Daddy loves you. Good night. ”And he brushed her cheek with a kiss.
About a week later, after the story time, Jenny’s daddy asked for the pearls again. And Jenny refused him again.
A few nights later when her daddy came in, Jenny was sitting on her bed with her legs crossed. As he came close, he noticed one silent tear rolling down her cheek.
“What is it, Jenny? What’s the matter?”
Jenny didn’t say anything but lifted her little hand up to her daddy. And when she opened it, there was her little necklace. She finally said, “Here, Daddy. It’s for you.”
With tears gathering in his own eyes, Jenny’s kind daddy reached out with one hand to take the dime-store necklace, and with the other hand to reach into his pocket and pull out a blue case with real pearls and gave them to Jenny. He had had them all the time. He was just waiting for her to give up the dime-store stuff so he could give her the real treasure.
What does the underlined word “Princess” mean?

A.It may be the daughter of the king .
B.It may be one of her toy girls.
C.It may mean Jenny`s teacher.
D.It may mean another necklace.

Why did tears come down when Jenny offered her necklace to her father?

A.Jenny felt sorry because she would lose her favorite.
B.Jenny felt excited because her father would give her a new necklace.
C.Jenny felt sad because the necklace she had bought was expensive.
D.Jenny `s father spent too much money on the necklace.

What’s the best title?

A.The Necklace B.Father C.Mother D.Daughter

Here is an unusual story: a diamond ring was recently found in an egg. The magician, Liu Qian, discovered it, in front of an audience of millions at CCTV`s Spring Festival Gala. Liu`s magic tricks have made the centuries-old art of magic fashionable (时髦的)once again, and made him the hottest magician in China.
As a seasoned (老练的) young magician from Taiwan, Liu is popular worldwide for his magic shows. Countries he has performed in include the United States, Japan, South Korea and the UK.
Witnessing (目击)something impossible happen right before your eyes is the root of people`s love for magic.
Liu is known for his interaction(互动) with his audiences. He has a special understanding of performing skills.
“It is actually thinking , rather than one`s performing skills, that is more important to achieve a successful magic show. We think carefully about how to design the shows creatively,to make them appear more attractive.” Liu said.
Liu Qian`s success dates back to his childhood. Born in 1976 in Taiwan, he found himself attracted to a magic toy in a shop when he was seven years old. At the age of 12, he won Taiwan`s Youth Contest, which was judged by the great American magician, David Copperfield.
Yet, Liu never planned on becoming a professional magician. He studied Japanese literature at university and only hoped to be an amateur (业余的) magician in his spare time. However, his failure to find a decent (体面的) job after graduation pushed him towards magic as a career.
To improve his performing skills, he has performed on streets, roads and fields, for passers-by, policemen and farmers.
“Street shows are the biggest challenge for us magicians. We have to deal with unexpected situations and tough(难对付的) crowds.” Liu said.
The story is about _________.

A.how Liu Qian became China`s hottest magician
B.why people love magic
C.what magic tricks are
D.what fashionable magic is

People love to watch magic because __________.

A.they can`t figure out the secret of magic
B.it arouses their curiosity
C.they love watching magicians make the impossible happen
D.it is a centuries-old art

Which of the following is the key reason that Liu Qian decided to make magic his career?

A.He was interested in magic when he was little
B.He had won Taiwan`s Youth Magic Contest
C.He became an amateur magician in his spare time
D.He couldn`t find a decent job after graduation

From the story, we know that________.

A.Liu Qian competed in many magic competitions
B.Liu Qian often invites audiences to be in his magic shows
C.Liu Qian performs on streets in order to increase his fame
D.Liu Qian does street shows to make money

Until a relatively short time ago, traveling abroad was limited to rich tourists and wealthy businesspeople. Flying abroad was not common for the average person. In time, however, plane travel became safer, more convenient, and less expensive. As a result, people of different backgrounds now fly to distant places for pleasure and businesspeople fly to one country for a breakfast or lunch conference, and then fly to another country for a dinner meeting.
With the world becoming smaller, many young adults make the decision to study in foreign universities. It is an exciting, challenging experience to live in a foreign country. Anyone who can study abroad is fortunate; but, of course, it is not easy to change from one culture to another. One faces many difficulties.
The student who studies in a foreign country leaves behind a familiar, loving, comfortable environment. Back home, he has his family, friends, and acquaintances. He knows the language, politics, money, food, social customs, and so forth. He knows all the unclear aspects of his native culture, such as body language, and bargaining practices, etc. in short, he knows “the system” in his native country. Then one day he leaves all this behind and suddenly finds himself in a place where everyone and everything is strange, perhaps even confusing. All this strangeness is a major surprise to a person’s self-confidence. This sudden change often leads to a reaction called culture shock.
Foreigners experience different degrees of culture shock. The symptoms range from being ill at ease to being seriously depressed. Feeling homesick, unhappy, and very sensitive are other signs of culture shock. It is easy to understand that the endless frustrations of the early days in a new country would produce dissatisfaction, and perhaps even hostility. People are always at ease in a familiar environment. A mature, realistic person experiences mild, temporary symptoms; the insecure newcomer suffers more seriously from a culture shock.
During the inevitable period of adjustment, the international student tends to complain about everything in the new environment. In fact, the student is likely to exaggerate the problems. When the student meets another miserable person from the same country, he will pour out his unhappy feelings. Together they can complain in their native language. Although this complaining provides temporary satisfaction, it certainly does not help him adapt to a new society. Being negative will never get rid of the feelings of frustrations. The mature person understands that a positive attitude, determination, and flexibility are important in making the change successful. A sense of humor is a big help.
76. Nowadays, flying abroad is ___ ____.
A. limited to rich tourists and wealthy businesspeople
B. more convenient but less safe
C. common for the average person
D. not common for the average person
77. “The system” in the third paragraph includes the following except _________.
A. social customs
B. bargaining practices
C. politics
D. foreign culture
78. Culture shock affects foreigners _________.
A. in just the same way
B. in the same degree
C. in quite similar ways
D. in different degrees
79. Endless frustrations of the early days in a new country would create _________.
A. dissatisfaction
B. discomfort
C. hostility
D. all of the above
80. The following are important in fighting culture shock except _________.
A. determination
B. a positive attitude
C. a sense of humor
D. hostility

Wall Street is the banking center of New York City. But how did the street get its unusual name? To find out, we must go back to the early years of exploration in North America.
New York City was first called New Amsterdam by the explorer Henry Hudson. He was working for a Dutch trading company when he entered what is now the lower Hudson River area in the year 1609. There he found an island that was a perfect trading harbor. The Manhattan Indians lived there.
Dutch traders built a town on the end of Manhattan Island. It became a rich trading center. But the British questioned the right of the Dutch to control the area. The two nations went to war in 1652.
The governor of New Amsterdam, Peter Stuyvesant, worried that British settlers in New England would attack his town. He ordered that a protective wall be built at the north edge of Manhattan. The wall was more than 2,290 feet long. It extended from the Hudson River to the East River.
The British never attacked New Amsterdam. So the wall was never tested in war. But the path beside it became known as Wall Street. Later, Wall Street became a street of banks and business.
Dealing in stocks and shares in the stock markets began in the 17th Century. An informal market developed around the coffee houses in the City of London gradually. In 1773 “New Jonathan’s” Coffee House became the informal Stock Exchange, and it was formally established till 1802. at that time London was the largest share market, and the growth of the Industrial Revolution helped the establishment of local share markets in other parts of the country --- more than 330 of them when there were most. These markets first began moves towards combination in 1890, when the Council of Associated Stock Exchanges was formed. By 1967 all the “Country” Exchanges had got together themselves into six regional exchanges, and in 1973 all seven exchanges in the British Isles came together to form The Stock Exchanges of Great Britain and Ireland, and its member firms spread from Aberdeen to the Channel Islands and from Lancaster to Limerick.
72. Manhattan was named after _____­­­­_____.
A. a Dutch explorer
B. a British colonist
C. an Indian tribe
D. the Dutch governor
73. The British and the Dutch went to war in 1652 because __________.
A. they both liked the rich island
B. they both wanted to have Wall Street
C. they both wanted to control the rich area
D. they had questions in some aspects unsolved
74. The wall _________.
A. was used in the war
B. was never used in the war
C. was destroyed later
D. was so weak that the British never tested it
75. In 1773 “New Jonathan’s” Coffee House became _________.
A. the place the merchants had their ventures
B. an informal stock exchanges
C. a formal stock exchanges
D. the biggest market in Britain

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号