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听力原文：Experts say some fanning activities are seriously damaging Earth's environment. B

听力原文： Experts say some fanning activities are seriously damaging Earth's environment. Bad farming methods can damage soil, forests and water supplies. They also have caused some plants and animals to disappear.

Two groups now say that bad farming methods are threatening the ability of farmers to produce enough food to feed the world population in the future.

The groups used satellite images, maps and modern equipment to study the effect of agriculture on the environment.

The study found that the destruction of soil is widespread, Important organic nutrients are being removed from farmland.

Agriculture uses 70 percent of the freshwater in the world each year. The study found that many farmers are wasting water supplies. In addition, chemicals designed to protect crops may pollute waterways.

The report also says as much as 30 percent of the world's forests have been cut down so the land could be used for agriculture. This has led to a severe loss of wildlife and their environments.

(30)

A．Soil.

B．Human population.

C．Forest.

D．Water.

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发布时间：2020-07-15

更多“听力原文：Experts say some fanning activities are seriously damaging Earth's environment. B”相关的问题

第1题

听力原文：Experts on dyslexia say that the problem is not a disease. They say that persons

听力原文： Experts on dyslexia say that the problem is not a disease. They say that persons with dyslexia use information in a different way. One of the world's greatest thinkers and scientists named Albert Einstein was dyslexic. Dr Einstein said that he never thought in words the way that most of us do. He said that he thought in pictures instead. Other famous people who suffered from dyslexia include Leonardo Da Vinci, a celebrated Roman artist, Thomas Edison, a well-Known American inventor and a former American Vice president, Nelson Rockfeller.

Dyslexia was first recognized in Europe and then in the United States over 80 years ago. Many years passed before doctors discovered that people with this disorder were not mentally slow or disabled. The doctors found that the brains of dyslexia persons are rather different. In brains of most people, the left side, the part that controls language, is larger than the fight side. In the people with dyslexia, the right side of the brain is much bigger. However, research has shown that dyslexia is more common in men than in women, and it is also found more often in people who are left-handed.

(30)

A．The left-handed women.

B．The left-handed men.

C．Excellent female scientists or artists.

D．Some celebrated female presidents.

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第2题

听力原文：Economic experts say that the world economy should improve some this year. They s

听力原文： Economic experts say that the world economy should improve some this year. They say there will be exploding economic growth in most of Asia. There will be moderate economic growth in the United States and Canada, and there will be little or no growth in Europe and Japan, but China is expected to have the most economic growth this year, probably ten percent.

The New Year is expected to bring more underpayment in industrial countries. The organization for economic Cooperation and Development says about 35 million people in its 24 member countries could be without jobs by the middle of the year. That would mean an average unemployment rate in industrial countries of about eight and one hall per cent. Unemployment in some European countries, however, could be much higher. It could climb to eleven and one half percent. Economic experts in the United States say the American economy will continue to expand. They say Americans are feeling sure that economic conditions are improving. This means they are willing to spend more money. Economic experts also think American industries will invest more money to increase production.

(33)

A．There will be exploding development in economy.

B．There will be moderate growth.

C．Them will be stagnation actually.

D．There will be no growth at all.

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第3题

听力原文：The British government says it will decide within two days if it will start an an

听力原文： The British government says it will decide within two days if it will start an animal treatment program to halt the spread of foot-and-mouth disease. Britain's National Farmers' Union has requested a quick decision. On Wednesday animal experts in the European Union gave Britain the choice to start a treatment program. 180,000 farm animals in the Cumbria and Devon areas would receive the treatment. Also in Moscow E. U. officials have protested Russia's ban on European meat imports. They say the 3-week ban is too strong because of measures the E. U. has now taken to control the disease.

Q: How long is the Russia's ban on European meat imports？

(22)

A．2 weeks.

B．4 weeks.

C．3 weeks.

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第4题

听力原文：Thousands of persons die each year after eating or drinking poisonous substances.

听力原文： Thousands of persons die each year after eating or drinking poisonous substances. Experts say most accidental poisonings happen at or near the home. And most are caused by substances we commonly use at home: medical supplies, insect poisons or cleaning fluids. There are several common signs of poisoning. A sudden feeling of pain or sickness. Bums in the area of the mouth. Or an unusual smell coming from a person's mouth.

Health experts generally advise poison victims to drink water or milk. But never give liquids to someone who is not awake or to those having a violent reaction to the poison. Next, seek help from professional medical experts. Save the material expelled from the mouth for doctors to examine. Save the container of the suspected poison to answer questions the doctors may have. The container may also describe a substance that halts the poison's effects. Use this substance without delay.

Health experts say vomiting sometimes may be started if medical advice is delayed. But vomiting should be used only when it is known the victim took too much of what is called a general poison, such as a medicine. The experts suggest never cause vomiting if the victim was poisoned by a petroleum product or by a substance that was a strong acid or strong alkali. These victims should be taken to a medical center as soon as possible.

(23)

A．Cleaning fluids.

B．Bums.

C．Unusual smell.

D．Milk.

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第5题

听力原文：More and more people are immigrating into the United States. The growing numbers

听力原文： More and more people are immigrating into the United States. The growing numbers of new immigrants have caused some tensions. Asian-Americans are concerned about a number of anti Asian incidents in the last five years. Some of the incidents involved racial insults. Some involved violence.

The United States Civil Rights Commission reported last autumn that anti-Asian violence is a national problem. Social experts say some Americans are looking for someone to blame for the country's economic problems. These people believe Japan is responsible for the trade imbalance and loss of industrial jobs. So they blame anyone who, to them, looks like Japanese... or simply Asian. This feeling is strongest, experts say, among poorer Americans who are struggling for survival.

Partly because of this problem, Asian-Americans are becoming more politically active. They are speaking out against anti-Asian violence and against policies based on anti-Asian feelings.

Traditionally, Asians have taken little part in politics in the United States. They put their energy into hard work and taking care of their families. Now, a movement for more political power has begun.

Asian-American politicians say the reason is mainly the desire for political representation. They say all Asian Americans do not share the same political goals, but share a desire to end all forms of racism. These political leaders would like to see more Asian-Americans in political life. California politician Jule Tang believes that Asian-Americans will become a united political force with their own elected officials. Ms. Tang says, "Asians want to be really part of the American system."

(33)

A．Some Americans look down upon Asian-Americans.

B．Some Americans blame China for the trade imbalance.

C．Some Americans blame Japanese for the trade imbalance and loss of jobs.

D．Americans think that they lost their jobs because Asian-Americans have taken the job places.

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第6题

听力原文：Whether it's a small job or a large haul, the people at Pixapolnt can supply all

听力原文： Whether it's a small job or a large haul, the people at Pixapolnt can supply all your painting needs. We are the experts in painting project needs. We have completed restorations for national treasuries, including statuies, buildings, and antique paintings as well as bringing back to life old antique cars and furniture. We are proud to say that our estimated time of completion for each job has always been on time as well as always staying within budget requirements. Our quality of service surpasses expectations every time. So, if you need something painted, pick up the phone, and call us.

What does Pixapoint do？

A．Make paints.

B．Build statues.

C．Collect antiques.

D．Paint buildings.

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第7题

听力原文：American scientists have found that some birds are more intelligent than experts

听力原文： American scientists have found that some birds are more intelligent than experts had originally believed. The scientists say birds have abilities that involve communication and different kinds of memory. In some unusual cases, their abilities seem better than those of humans.

Griffin is a Grey parrot. He lives in his laboratory at the Massachusetts Institute of Technology in Cambridge. Griffin can arrange objects in order of size. He can also combine words in the right order. For example, he will combine words when asking for a piece of food.

Some birds have other memory skills. For example, they collect and store thousands of seeds in autumn, and find them later in winter. These birds use natural objects to find the seeds they have stored. They use at least three objects, such as rocks or trees, to find the stored seeds.

A jay can be trained to choose one object instead of another. The bird uses this skill to receive a prize, such as food.Scientists also say some birds can learn as many as two thousand different songs. They say songs may have developed as a way for birds to communicate with other birds.

Scientists believe that birds must have a special guidance system in their brain. Understanding how a bird's brain operates may help us better understand how a human brain processes information.

(26)

A．Talking.

B．Communication and memory.

C．Singing.

D．Finding the way.

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第8题

听力原文：For many years, officials of the National Institutes of Health have told American

听力原文： For many years, officials of the National Institutes of Health have told Americans that they need to get enough sleep to stay healthy and perform. well. In the past, the N-I-H targeted special groups, like drivers, soldiers and astronauts.

Now, health officials have begun a campaign to urge children to get enough sleep. The officials say children need at least nine hours o(sleep every night. They say research shows that children who get this much sleep perform. better in school, suffer fewer accidents and are less likely to become too fat.

Studies show that lack of sleep causes tiredness and problems with clear thinking. People who do not get enough sleep become angry easily and have trouble controlling their emotions.

Among children, problems that result from lack of sleep often are mistaken for more serious disorders. Unlike adults, tired children seem to have endless energy. Some doctors mistakenly identify this as hyperactivity.

Experts say many American teenagers are not getting enough sleep. Teenagers stay up later for several reasons, including schoolwork, after school activities and late- night fun. Many high school students in the United States start school very early in the morning.

(33)

A．To urge children to get enough sleep.

B．To relieve the burden of school children.

C．To dissuade teenagers from staying up late.

D．To tell Americans to have 9 hours of sleep every night.

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第9题

听力原文：The word "okay" is known and used by millions of people all over the world. Still

听力原文： The word "okay" is known and used by millions of people all over the world. Still, language experts do not agree on where it came from. Some say it came from Indian people. When Europeans first came to America, they heard hundreds of different Indian languages. Many were well developed. One tribe especially had a well developed language. They were farmers and fishermen who lived in the rich Mississippi valley in what is now the state of Alabama. When problems arose, the headers of this tribe discussed them with the tribal chief. They sat in a circle and listened to the wisdom of the chief. He heard the different proposals often raising and lowering his head in agreement, and saying, "okeh," meaning, "all is so". The Indian languages have given many words to English. Many American states have Indian names, and so do rivers, streams, mountains, cities and towns.

(30)

A．American Indian.

B．British people.

C．Europeans.

D．African people.

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第10题

听力原文：Judging from the recent surveys, most experts in sleep behavior. agree that there

听力原文： Judging from the recent surveys, most experts in sleep behavior. agree that there is virtually an epidemic of sleepiness in the nation. "I can't think of a single study that hasn't found Americans getting less sleep than they ought to," says Dr. David. Even people who think they are sleeping enough would probably be better off with more rest.

The beginning of our sleep-deficit recording and others can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to between 7.5 and eight hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don't even realize they're doing it," says Dr. David. "They think they're okey because they can get by on 6.5 hours, when they really need 7.5, eight or even more to feel ideally vigorous."

Perhaps the most merciless robber of sleep, researchers say, is the complexity of the day. Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on his programme. "In our society, you're considered dynamic if you say you only need 5.0 hours' sleep. If you've got to get 8.5 hours, people think you lack drive and ambition."

(33)

A．Americans are ideally vigorous even under the pressure of life.

B．Americans often neglect the consequences of sleep deficit.

C．Americans don't know how to relax themselves properly.

D．Americans can get by on 6.5 hours of sleep.

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