题目内容
听力原文： American researchers have made a discovery that might help them better understand the mysterious sense of smell. VOA's Jessica Bermon reports. There are about a thousand protein receptors in the nose that tell the brain what it's smelling. Each receptor can detect one or more odors but scientists have never before linked a specific odor molecule to a particular receptor. Writing in the journal Science, researchers at New York's Columbia University report doing just that with a meat odor and a receptor in the noses of rats. Steward Fairstine led the team of investigators. He says humans are capable of decerning something like ten thousand different odors. Mr. Fairstine says the reasearch might also tell scientists more about brain chemicals and hormones which are part of the same family as odor receptors. Jessica Bermon, VOA news Washington.
The discovery by American researchers might help them understand ______.
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According to the most modern idea, a real myth has nothing to do with religion. It is an explanation of something in nature; how, for instance, any and everything in the universe came into existence: men, animals, this or that tree or flower, the sun, the moon, the stars, storms, eruptions, earthquakes, all that is and all that happens. Thunder and lightning are caused when Zeus hurls his thunderbolt. A volcano erupts because a terrible creature is imprisoned in the mountain and every now and then struggles to get free. The Dipper (大熊星座) , the constellation (星座) called also the Great Bear, does not set below the horizon because a goddess once was angry at it and decreed (命令) that it should never sink into the sea. Myths are early science, the result of men's first trying to explain what they saw around them.
But there are many so-called myths which explain nothing at all. These tales are pure entertainment, the sort of thing people would tell each other on a long winter' s evening. The story of Pygmalion (皮格马利翁) and Galatea is an example; it has no conceivable connection with any event in nature. Neither has the Quest of the Golden Fleece (寻找金羊毛), nor Orpheus (奥菲士，竖琴圣手) and Eurydice, nor many another. This fact is now generally accepted; and we do not have to try to find in every mythological heroine the moon or the dawn and in every hero' s life a sun myth. The stories are early literature as well as early science. But religion is there, too. In the background , to be sure , but nevertheless plain to see. From Homer through the tragedians and even later, there is a deepening realization of what human beings need and what they must have in their gods.
The author believes that myths ________.
某宗物业是在政府有偿出让的土地上开发建设的，当时获得的土地使用年限为50年，至今已使用了6年；预计利用该宗物业正常情况下每年可获得净收益8万元；该宗物业的报酬率为8.5%。则该宗物业的收益价格为()万元。
Part A
Directions: Read the following three texts. Answer the questions on each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.
The automobile has many advantages. Above all, it offers people freedom to go wherever and whenever they want to go. The basic purpose of a motor vehicle is to get from point A to point B as cheaply, quickly, and safely as possible. However, to most people, cars are also personal fantasy machines that serve as symbols of power, success, speed, excitement, and adventure.
In addition, much of the world's economy is built on producing motor vehicles and supplying roads, services, and repairs for those vehicles. Half of the world's paychecks are auto related.
In the United States, one of every six dollars spent and one of every six non-farm jobs are connected to the automobile or related industries, such as oil, steel, rubber, plastics, automobile services, and highway construction.
In spite of their advantages, motor vehicles have many harmful effects on human lives and on air, water, land, and wildlife resources. The automobile may be the most destructive machine ever invented. Though we tend to deny it, riding in cars is one of the most dangerous things we do in our daily lives.
Since 1885, when Karl Benz built the first automobile, almost 18 million people have been killed by motor vehicles. Every year, cars and trucks worldwide kill an average of 250, 000 people--as many as were killed in the atomic bomb attacks on Hiroshima and Nagasaki--and injure or permanently disable ten million more. Half of the world's people will be involved in an auto accident at some time during their lives.
Since the automobile was introduced, almost three million Americans have been killed on the highways--about twice the number of Americans killed on the battlefield in all U. S. wars. In addition to the tragic loss of life, these accidents cost American society about $60 billion annually in lost income and in insurance, administrative, and legal expenses.
Streets that used to be for people are now for cars. Pedestrians and people riding bicycles in the streets are subjected to noise, pollution, stress, and danger.
Motor vehicles are the largest source of air pollution, producing a haze of smog over the world's cities. In the United States, they produce at least 50% of the country's air pollution.
Cars represent people's _________.
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