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Question

同学们，在遥远的明朝，没有电和蒸汽来发动船只，郑和是怎么样完成下西洋的壮举呢？这是因为他们借用了一种自然能源——风。很早以前，人类就学会了利用风能来改善我们的生活。风在自然界里做了许多工作。它能使大范围的热量和水汽混合、均衡，调节空气的温度和湿度；能把云雨送到遥远的地方，使地球上的水分循环得以完成。风在日常生活中的作用很多，帆船的行驶也是靠风力的推动。郑和下西洋就是多亏了风的帮忙才能得以成功。

　　空气在水平方向上的流动就叫做风。风的形成是空气流动的结果。是气压在水平方向分布的不均匀。简单地说，风是空气分子的运动。风能的形成主要是将空气分子运动时所具有的动能转化为其他形式的能。帆船就是通过船帆兜风受到推力来前进的。随着风向的变化，船员们及时的调整帆的角度，以此得到前进方向的推力。

在这个实验中，在风扇的转动下，空气分子运动起来，形成了风，风作用于船帆，小船得到了前进的推力，所以能够前进。

Answer 1

Everyone, in the anicent Ming dynasty, when there were no electricity or steam to power boats, how did Zheng He navigate to the West? It is because he used a natural resource, the wind. Dating back to the old times, people have learned how to use wind energy to ammeliorate our lives. Wind performs a lot of work in nature. It can make the heat and steam in a large are to merge, balance, adjust the temperture and humidity. It can also deliver rain to far places, so the water cycle of Earth would be completed. Wind is very useful in daily lives, for example, a sailboat depends on to wind to move. Zheng He's voyages were successful because of the help of wind.

Air moving up on horizontal direction is called Wind. Wind is formed by the movement of air, as the air pressure on the horizontal direction is distributed unevenly. To put it simply, wind is the movement of air particles. Wind energy is formed mainly by converting the kinetic energy of the air particles to other forms of energy as they are moving. A sailboat is able to move forward as its sail is pushed against by wind. Looking out fo the changes in the set of the wind, sailors can adjust the angle of the sail to obtain impulse force for movement.

In this experiment, as the fan spins, air particles are starting to move, creating wind. Wind is used for sailing. A sailboat obtains sufficient thrust, so it can advance.

Answer 2

莱斯特大学是我的目标。老实说，我不知道多少它before.However，我被深深地吸引了，当我打开网站莱斯特大学。它必须是一个美妙的事情，如果我能在这所大学学习。

至于未来，我真正感兴趣的融资。我认为这是最幸福的事情，我从事我喜欢的职业生涯。因此，我希望，我可以力争在金融领域。

Answer 3

Students,farintheMing Dynasty,no electricityandsteamto launchboats,Zhengandhow tocompletethefeatunder the Western?Thisisbecause theyborroweda naturalenergy-wind.A long time ago, humans havelearned tousewindpowerto improveour lives.Winda lot of workto dointhenatural world.Which enablesa wide rangeof heat and moisturemixed,balanced,adjustthetemperatureand humidityoftheair;able toclouds and rainsent todistantplaceson Earth'swatercycleto be completed.Theroleofthewindin their daily livesanda lot ofsailboatrideisalsodrivenbythewind.Zheng He's voyagesisthanks tothe helpofthewindinordertobesuccessful.

Theflowofairin the horizontal directionis calledwind.The formationofthewindisthe resultoftheair flow.Istheuneven distribution ofpressure in thehorizontal direction.Simply put,thewind isthe movementofair molecules.Theformationofwindenergyisthemovementofair moleculeswithkinetic energy intoother forms of energy.Sailingthroughthe sailsfor a rideby thethrusttomove forward.Withthechangeinwinddirection,thetimelyadjustmentofthecrewsail'sanglein order togettheforwarddirectionofthrust.

In this experiment,therotation of the fan, the air moleculesin motion,theformationofthe wind,thewindacting on thesail,theboathas beenthrustforward, socan move forward.

Answer 4

同学们，在遥远的明朝，没有电和蒸汽来发动船只，郑和是怎么样完成下西洋的壮举呢？这是因为他们借用了一种自然能源——风。很早以前，人类就学会了利用风能来改善我们的生活。风在自然界里做了许多工作。它能使大范围的热量和水汽混合、均衡，调节空气的温度和湿度；能把云雨送到遥远的地方，使地球上的水分循环得以完成。风在日常生活中的作用很多，帆船的行驶也是靠风力的推动。郑和下西洋就是多亏了风的帮忙才能得以成功。
Dear classmates, in the long-past Ming Dynasty, under the condition that there was no electricity nor steam to motivate boats, how could He ZHENG completed the feat of exploring the oceanic countries? It is because of a natural energy- wind, that they utilized to succeed. Long long ago, mankind had mastered the ways to use winds to improve their lives. Wind does a lot of work in the nature. It can mix and balance heat and vapor on a large scale and modulate the air temperature and humidity as well as complete the water cycle on the earth by sending clouds and rain to faraway places. Wind plays many roles in our daily lives, for example,the moving of a yacht is realized by the force from the wind blowing the sails . Mr. Zheng succeeded in his oceanic adventure because of the help from Aeolus.
空气在水平方向上的流动就叫做风。风的形成是空气流动的结果。是气压在水平方向分布的不均匀。简单地说，风是空气分子的运动。风能的形成主要是将空气分子运动时所具有的动能转化为其他形式的能。帆船就是通过船帆兜风受到推力来前进的。随着风向的变化，船员们及时的调整帆的角度，以此得到前进方向的推力。
Wind is the flow of air in a horizontal way. The formation of wind is the result of the air movement and the uneven distribution of air pressure in the horizontal direction. Simply speaking, wind is the movement of air molecules. The wind energy is formed mainly by changing the kinetic energy from air molecule movements into other forms of energies. The movement of a sailing boat is achieved by the energy from the wind blowing the sails. With the changes of wind directions, sailors can adjust the angles of sails in time to get the thrust for forward movement.
在这个实验中，在风扇的转动下，空气分子运动起来，形成了风，风作用于船帆，小船得到了前进的推力，所以能够前进。
In the experiment, due to the rotation of the fan, air molecules start moving to form wind, which works on the sails to provide the energy to push the boat. That is the reason why the boat can move forward.
仅供参考，欢迎指正

Answer 5

Far ming, no electricity and steam to power ships, Zheng He was about how to complete the feat of the era? This is because they use a natural energy--wind. A long time ago, man learned to use wind energy to improve our lives. Wind in the natural world has done a lot of work. It enables a wide range of thermal and moisture mixing, equalization, adjust the temperature and humidity of the air; could you take sex to a distant place, on Earth's water cycle to be completed. Wind in the everyday life of many, sailing wind driven. Zheng He is, thanks to the help of the wind leads to success. A horizontal movement of the air is called wind. Wind formation is the result of air flow. Is the uneven distribution of air pressure in the horizontal direction. Simply put, the wind is the movement of air molecules. Formation of wind is mainly the air when molecular motion has kinetic energy is converted into other forms of energy. Sailing through the sails for a ride was thrust forward. As the wind direction changes, the crew adjust the angle of the sails in a timely manner, to get the direction of thrust. In this experiment, under the fan turns, air molecules moving together, forming a wind and wind for the sails, boats are thrust forward, the ability to go.

Answer 6

The classmates, far in the Ming Dynasty, no electricity and steam to launch ships, Zheng He is how to fulfill the's feat? This is because they use a natural wind energy --. Long ago, humans will learn to improve our life energy. The wind did a lot of work in the world of nature. It can make a wide range of heat and water vapor mixing, balance, regulate the temperature and humidity of the air; the cloud to the distant place, make the earth's water cycle to complete. A lot of wind action in everyday life, sailing driving also depend on wind push. Zheng He's voyages is thanks to the help to the success of the wind.

The air flow in the horizontal direction is called the wind. The wind is the formation of air flow results. The pressure distribution in the horizontal direction is not uniform. Simply put, the wind is the movement of air molecules. Wind formation is the kinetic energy of air molecules when moving into other forms of energy. Sailing is through the ride was thrust forward. With the wind direction changes, the crew to adjust the angle of the sail, in order to get the direction of the thrust.

In this experiment, in the rotation of the fan, air molecules in motion, formation of the wind, the wind in the sail boat, get forward thrust, so can advance.