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[听力原文]11-15Venice is a fascinating city between sea and sky. It is built on 117 islands. There aren’t any cars and buses, But it has 150 canals and 400 bridges. The narrow streets, with their historic names, are paved with stones but have no footpaths. They are lined with flower, shops and lights side by side. The squares are charming, The brick bridges are built high to; allow boats to pass tinder them.Every year thousands of tourists front the five continents visit this city. They are always amazed at the charm of her water and beautiful lights, which can make them free from all dust and cooled by the sea breezes.But because the level of the surrounding waters is constantly rising, the Venice faces a threat to its Very existence. And the Venetian love their city and want to stay there to save the Venice from the sea, Now various methods hove already been taken and a plan to protect the city is under investigation. How many islands are there in Venice（）
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简述国际企业组织的基本原则。
What Are the Fine ArtsWhat we call the fine arts are considered to he painting, sculpture, literature, drama, music, dancing, and architecture.Today, many curious experiments are being made in all the fine arts. But the traditional methods and products of the fine arts all have things in common. For one thing they have "design". Design can be with sounds, with stones, with words, with building materials, with lines, and paint. A work of fine art is designed. And within that design, the creator uses "rhythm". "balance" , and "harmony’.Rhythm comes from the more or less regular repetition of similar sounds, colors, shapes, and movements. Balance is the arrangement of: what the artist works with so that the result seems right to us. And harmony is putting things together that seem to belong together. These, of course, are only rough ideas of what a creator in the fine arts tries to do.Now please find correct English expressions in the diagram to fill in the following translations:A) traditional methodsB) designC) painting, sculptureD) "regular repetition"E) fine artF) literature, dramaG) "rhythm", "balance", and "harmony"H) music, dancing, architectureI) curious experiments （）稀奇古怪的实验（）美术
Although the United States has been shaped by continual waves of immigrants, Americans have often viewed immigration as a problem. Established Americans often look down on new immigrants. Despite such tensions, economic needs have always forced Americans to seek immigrants as laborers and settlers, and economic opportunities have appealed to foreigners. The vast majority of immigrants to the United States have come in search of jobs and the chance to create a better life for themselves and their families.In all of American history, less than 10 percent of immigrants have come for political or religious reasons.Economic immigrants from Europe, Asia, and Latin America have come to the United States voluntarily. Others, most African Americans, were involuntarily transported to North America to do forced labor or to be sold as slaves. Regardless of the reasons they come to the United States, new immigrants typically work in labor-intensive, low-paying, and dangerous jobs--occupations that most other Americans avoid.Although immigrants are expected to absorb the beliefs and standards of the dominant society, most immigrant groups try to maintain their own cultural tradition, language, and religious practices. Some groups, such as the Huguenots (French Protestants) who immigrated during the colonial period, assimilated (同化)within one or two generations. Others, such as the German and Irish immigrants of the 19th century, still maintain some aspects of their traditional cultures.Traditionally the United States has been described as a melting pot, a place where the previous identities of each immigrant group are melted down to create an integrated, uniform society. In the sentence "Others, most African Americans, were involuntarily transported to North America to do forced labor or to be sold as slaves.", the word "involuntarily" can be explained as（）
An airplane flies because its wings push down on the air flowing past them, and in reaction, the air pushes up on the wings. When an airplane is level or rising, the front edges of its wings ride higher than the rear edges. The angle the wings make with the horizontal is called the angle of attack. As the wings move through the air, this angle causes them to push air flowing under them downward. A sleeper angle of attack will cause the wings to push more air downward. The third law of motion voiced by English physicist Isaac Newton states that every action produces an equal and opposite reaction. In this case, the wings pushing air downward is the action, and the air pushing the wings upward is the reaction. This causes lift, the upward force on the plane, Lift is often explained using Bernoulli’s principle, which states that, in some circumstances, a faster moving fluid(流体) (such as air)will have a lower pressure than a slower moving fluid. The air on the top of an airplane wing is at a lower pressure than the air underneath the wing, but this is an effect of lift, not its cause.Lift is one of the four primary forces acting upon an airplane. The others are weight, thrust, and drag. Weight is the force that offsets lilt. because it acts in the opposite direction. The weight of the airplane must be overcome by the lift produced by the wings, if an airplane weighs 4.5 metric tons, then the lift produced by its wings must be greater than 4.5 metric tons in order for the airplane to leave the ground. Designing a wing that is powerful enough to lift an airplane off the ground, and yet efficient enough to fly at high speeds over extremely long distances, is one of the marvels of aircraft technology. What are forces acting upon an airplane
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