有趣的英语科普短文

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We were stading at the top of a church tower. My father had brought me to this spot in a small Italian towen not far from our home in Rome. I wondered what.

”Look down, Elsa,” father said. I gathered all My idea and looked down. I saw the square in the centre of the village. Then I saw the crisscross of twisting turning streets leading to the square. ”See, my dear,”father said gently. ”There is more than one way to the square. Life is like that . If you can't get to the place where you want to go by one road, try others.”

In the year that followed, Ioften remember the lesson father sent me .I knew what I wanted to go in my life. I wanted to be a fashion designer. And on the way to my frist small success I found that road blocked. What could I do? Accept the road blocked and fail? Or use imagination and wait to find another road to my goal?

Central Park is a large public, urban park (843 acres or 3.41 km?0?5; a rectangle 2.5 statute miles by 0.5 statute mile, or 4 km × 800 m) in the borough of Manhattan in New York City. With about twenty-five million visitors annually, Central Park is the most visited city park in the United States, and its appearance in many movies and television shows has made it among the most famous city parks in the world. It is run by the Central Park Conservancy, a private, not-for-profit organization that manages the park under a contract with the New York City Department of Parks and Recreation.

Central Park is bordered on the north by West 110th Street, on the west by Central Park West, on the south by West 59th Street, and on the east by Fifth Avenue. Along the park's borders, these streets are usually referred to as Central Park North, Central Park West, and Central Park South, respectively. (Fifth Avenue retains its name along the eastern border.)

The park was designed by Frederick Law Olmsted and Calvert Vaux, both of whom later created Brooklyn's Prospect Park. It has been a National Historic Landmark since 1963. While much of the park looks natural, it is in fact almost entirely landscaped and contains several artificial lakes, extensive walking tracks, two ice-skating rinks, a wildlife sanctuary, and grassy areas used for various sporting pursuits, as well as playgrounds for children. The park is a popular oasis for migrating birds, and thus is popular with bird watchers. The 6-mile (10 km) road circling the park is popular with joggers, bicyclists and inline skaters, especially on weekends and in the evenings after 7:00 p.m., when automobile traffic is banned.

求英语高手~=~关于做梦的英文文章（科普类型的不要叙事）

大雁是如何飞过喜马拉雅山的?

大雁是如何飞过喜马拉雅山的?到底能否飞过去， 我们先不论，我们先假设一下,大雁要想飞越过去的前提条件和目的，进行一次推理：

1.首先考虑的是喜马拉雅山是世界最高山脉，海拔高度接近9000米了，峰顶空气稀薄，气压非常另人窒息的，登山队员之所以能登顶，是因为穿着国际标准的登山服，配备氧气瓶，确保他们的生命安全，对吧。而大雁呢，它们飞的时候，身体抗压是有极限的，当感觉呼吸困难的时候，就不会继续飞了，至少要在一个适宜的空间高飞，是吧。再好比说，航天飞机为什么能飞出地球，而里面的宇航员也能很好的在太空中生活呢，还不是供氧设备完好，身体保护设施也很先进的缘故吗？将大雁和人都装飞机里飞这么高的山脉，当然没事了，但你这题目是，大雁怎么飞的，安这样的推理，还没等飞到那么个高度，大雁已经因氧气不够，气压太大，业已身亡了。

2.人们通常看到大雁飞的高度是通过肉眼看到的，而人的视觉能见最大极限也是有的，但也绝对不是9000米吧，那不成千里眼了，也就几百米，视力好的，就千米了。因此凭借生活常识，也能推断，大雁飞的高度也就是千米左右。至少要在人的视野范围内的。

3.大雁是出色的空中旅行家。每当秋冬季节，它们就从老家西伯利亚一带，成群结队、浩浩荡荡地飞到我国的南方过冬。第二年春天，它们经过长途旅行，回到西伯利亚产蛋繁殖。大雁的飞行速度很快，每小时能飞68～90公里，几千公里的漫长旅途得飞上一两个月。

漫长的旅途，当然它们要选择最舒服的高度最充足的空间去滑翔于蓝天了，飞的越高，气压越影响它们的飞翔，也越耗费力气，自然也不会飞到9000米那个极限的高度了。

4.飞山脉作什么？山脉那头有什么？山脉上都是积雪，无比寒冷，达到南飞的目的了吗，南飞是过冬，不是集体自杀吧，还有，一个物种的繁衍是几千年的结果，大雁也不例外的，或许当初大雁刚诞生的时候，它们的祖先或许能想飞到山脉那头，但不断的被冻死，不断的有死去的，自然，就形成了固定的生活范围了，我国的南方来过漫长的冬天，所以是随时间形成的！

5.由此可见，想飞的条件和目的都不成立，当然大雁是飞不过去的，即使飞，也是楼上说的，山谷，但还是要死掉的，所以，楼主问的，不会发生的。

How do wild geese flow over the Himalayan mountains?

Let's put aside the question of whether they can make their way through,and let us make an assumption of

the preconditions and their objectives and then proceed to make a rationale.

1. First, considering that the Himalayan mountain being the highest mountain range in the world, with heights close to 9000 ft above sea level, the air at the peak is thin and atmospheric pressure suffocates someone to death if he is devoid of aids.

Why mountain climbing teams can reach the peak without endangering their lives is because they wear climbing

suits of international standards,and are equipped with oxygen tanks.

2. How about the wild geese? When they fly,their body resistance to air pressure has a certain limit. When they feel that they have problem breathing, they will not

continue to fly at least not at at a height unsuitable for their biological functioning.This reasoning is much the same to explain why spacecrafts can fly out of our planet and the spacemen can live in space,which much of it is attributed to the oxygen supply support and human body

protection facility.

3. When wild geese and humans are put on a air plane,

flying at such a height is definitely not a problem.

However,your topic is how do the geese fly.According to logical reasoning,geese will suffocate to death before

reaching this height.

4. Wild geese are usually sighted with our naked eyes, and our vision has a limit as to how far we can see.

Nevertheless, this vision limit cannot exceed 9000 ft.

Otherwise,we will all become clairvoyants.At the very most, our vision is good up to a few hundred feet or a few thousand feet. Therefore, based on our logical reasoning,

we can deduce that wild geese fly at a height of about a thousand feet.At least, their flying height has to remain

in our vision limits.

5. Wild geese are outstanding air travellers. During autumn and winter times,they will fly from their native habitat in the Siberian region in groups and mightily

to the south of China,part of natural winterly migration patterns for wide life.In the spring season of the second

year, they will return in a long journey to Siberia for eggs laying and breeding.Wild geese fly really fast rating at 68 to 90 km/h. Even at this speed,flying to destination

of a few thousand kilometers away will take them one to two months.

6.In such a long journey, they definitely have to choose a flying height where they are comfortable with and in a blue

space with openness that allows them to fly and glide.The higher they fly,the higher the influence of air pressure.

This resultantly affects their volitation capability resulting in a heavier use of their strength and energy and naturally they will not be able to attain a flying

height of 9000 ft which is also their maximum flying limit.

7.Why do they want to fly over a mountain range? What are on the other side of the mountain range? Mountain ranges

are capped with snow and are extremely cold.Have they achieved their objective of flying south? Isn't flying south to pass their winter time a mass suicide? On top of that, the multiplication of a living specie is an outcome realized from a period of a few thousand years,and wild geese is no exception.

Dreams are successions of images, ideas, emotions, and sensations that occur involuntarily in the mind during certain stages of sleep.The content and purpose of dreams are not definitively understood, though they have been a topic of scientific speculation, as well as a subject of philosophical and religious interest, throughout recorded history. The scientific study of dreams is called oneirology.Dreams mainly occur in the rapid-eye movement (REM) stage of sleep—when brain activity is high and resembles that of being awake. REM sleep is revealed by continuous movements of the eyes during sleep. At times, dreams may occur during other stages of sleep. However, these dreams tend to be much less vivid or memorable.Dreams can last for a few seconds, or as long as twenty minutes. People are more likely to remember the dream if they are awakened during the REM phase. The average person has about 3 to 5 dreams per night, but some may have up to 7 dreams in one night. The dreams tend to last longer as the night progresses. During a full 8-hour night sleep, two hours of it is spent dreaming.

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