Why is a full moon, yellower and bigger when it is coming up than when it is higher in the sky?

That's a good question about something that we all can see. Let's talk about the moon's color first.
We see the moon only because of the sunlight that falls on it and is reflected. Actually, the moon is not a very good reflector, because its surface is all rocks and dirt. We see it in almost its true color when it is high in the sky.
When the moon first comes up, its light reaches our eyes after an extra-long path through the atmosphere (大氣). There are lots of particles (微粒) scattering (分散) light in that long path. Blue light is scattered more than other colors, which means that it doesn't reach your eyes. The light that is left over looks yellow to your eye.
Now about the other question—why the moon seems to change in size. That's more complicated. It's not an effect of the atmosphere, the way color is; it's not caused by something fooling your eyes. It seems, instead, to be caused by something that fools your brain—an illusion(錯覺).
Here's a drawing that creates an illusion. The two cones(圓錐體) are really the same size. But the rest of the drawing makes the right-hand cone seem farther away. Your brain knows that faraway objects are really larger than they look. It decides that the right-hand cone must be larger because it seems to be farther away.
Similarly, when you see the moon just come up over a line of trees or houses—or whatever makes the horizon(地平線)—it may be that your brain decides that the moon must be larger because it seems to be farther away.
【小題1】The moon doesn't reflect the sunlight very well because________________.

A．it is high in the skyB．its surface is rough
C．its surface is whiteD．it isn't a good reflector
【小題2】Which statement is true according to the passage?
A．In the course of its rising, the moon is getting smaller and smaller
B．The size of the moon is more complicated than its color
C．The atmosphere has the same effect on the moon's size as on its color
D．The change in the moon's size is caused by an illusion while that in its color is caused by the atmosphere
【小題3】After reading this passage, you can possibly answer one of the following questions. Which one? ______.
A．Why is the sun bigger when it rises over the horizon?
B．Why does the sun look bigger when it rises over the horizon?
C．Why does the sun look golden?
D．Why does the sun rise in the east?
【小題4】Who do you think probably wrote this passage?________.
A．A novelistB．A reporter
C．A science editorD．An English teacher．


【小題1】B
【小題2】D
【小題3】B
【小題4】C

解析試題分析：文章介紹了月亮知識，包括顏色，大小，表面的狀況等。
【小題1】細節(jié)題：從第三段的句子：because its surface is all rocks and dirt.可知月亮表面太粗糙，所以不能很好反射太陽光。選B
【小題2】細節(jié)題：第四段講的四月亮的顏色改變是大氣造成的，第五段講月亮大小改變是人的錯覺。選D
【小題3】從最后一段的句子：it may be that your brain decides that the moon must be larger because it seems to be farther away.可知是回答為什么月亮從地平線起來時看起來更大。選B。
【小題4】這是一篇介紹月亮知識的文章，屬于科普類短文，作者也是。選C
考點：考查科普類短文
點評：文章比較抽象，但題目并不難，集中考查了細節(jié)題，題目設(shè)置較為合理，涵蓋了全篇文章內(nèi)容，在做題的時候，準確確定考點，準確判斷就行。

練習冊系列答案
相關(guān)習題

科目：高中英語 來源： 題型：閱讀理解

Directions: Read the following text and choose the most suitable heading from A-F for each paragraph. There is one extra heading which you do not need.

A. Leave others a deep impression

B. Be a pleasant listener

C. Pay attention to your wearing

D. Get enough background information

E. Make full self-preparation

F. Apply appropriate postures

Interviewing is a skill that can be learned and the key lies in the “three-Ps” of planning, practice and preparation. Here are some tips on making a successful interview.

1.

Prepare as well as you possibly can, search the web and research the background of the company and the people who you think are going to be interviewing you. Learn exactly what it is they do and exactly how you would fit in with the company. Most importantly try to understand the “culture” of the company. You need to communicate in a way that mirrors their company standards; this will show you can fit in that organization. Understand a little of what their competitors are doing. This will show you’ve bothered to find out where their position in the market is.

2.

Just as important is your own personal preparation. Think about the key things you want to communicate and why you would be ideal for the job. Think about you can sound enthusiastic, without sounding desperate; how you can sell yourself. If they ask you a question, such as “tell me about your CV”, and you can’t do it fluently, you will find the interviewers will lose interest and you won’t get the job.

3.

During the interview, be a very good listener and if you can find some common ground with your interviewers, you will have a big advantage over your competitors. The interview is basically an interaction between two people, so how you come across as a person is of upmost importance. As soon as you enter the company building, make sure everyone you meet is left with the impression that you are a pleasant person. Sometimes an interview question might seem very simple but, don’t be deceived, there is always a reason for them asking that question.

4.

Generally wear a suit and tie, but it does depend on the job you are going for. You should have discovered, when you studied the company culture, what is expected. For media companies, for example, being smart but casual might be the style they want. They are looking for someone who is comfortable with himself or herself. In this case you should dress for who you are.

5.

It is natural if you are nervous, in fact it is a good sign; it shows you are taking the interview seriously. However try to avoid nervous mannerisms, such as tapping your foot or playing with your hair. Positive body language is important, so adopt a good posture. If you slouch in your chair the interviewer will think you could be sloppy in your work as well. Positivity is essential in all aspects of your interview.

查看答案和解析>>

科目：高中英語 來源：2011-2012學年廣東省三校高二下學期聯(lián)考英語試卷（帶解析） 題型：填空題


A. 20 Years Younger

The book details easy and effective steps we can all take to rebuild the foundation of youth and enjoy better health, improved energy, and a positive outlook on life. The four basic programs are: an exercise system for fighting muscle and bone loss, a longevity-focused diet, sleep rejuvenation, and wrinkle-fighting skin care. Woven throughout the text is practical advice on changing appearances, controlling stress, staying mentally sharp, navigating medical tests, and much more.
B. Born To Run

Full of incredible characters, amazing athletic achievements, cutting-edge science, and, most of all, pure inspiration, Born to Run is an epic adventure that began with one simple question: Why does my foot hurt? In search of an answer, Christopher McDougall sets off to find a tribe of the world’s greatest distance runners and learn their secrets, and in the process shows us that everything we thought we knew about running is wrong.
C. Natural Running

In Natural Running, Abshire explains how modern running shoes distort the efficient running technique that humans evolved over thousands of years. He reviews the history of running shoes and injuries, making the case for barefoot running but also warning about its dangers.
D. Woodworking

This book includes excellent instruction from a best-selling woodworking author on all aspects of woodworking with hand tools. He approaches setting up the all-hand tool shop, explains how the tools work in wood, addresses the joinery, and finishes with instructions on building a workshop accessory to use with hand tools. Also included are other sample projects and information on finishing the hand worked projects.
E. Whittling Little Folk: 20 Delightful Characters to Carve and   Paint

At the beginning of the book, readers will find step-by-step carving and painting instructions for a Scandinavian inspired man and woman. Once they have learned to carve these two projects, readers will find an additional 18 patterns that can also be created with the same technique and some subtle changes.
F. Quick and Easy Meals

The book offers healthy, low-carbon Primal-approved recipes that can all be completed in under half an hour and, in many cases, in just a few minutes. Sisson and Meier show you how to delight your family or guests every time with quick, delicious meals using local produce, CSA meats, healthy fats (yes, and real butter) and common herbs and spices.
請閱讀以下購書者的信息，然后匹配相關(guān)的書籍。
【小題1】Carina is fond of art and likes carving very much. In order to make something for the coming Mothers Day, she is searching a new idea.
【小題2】Daisy is a busy salesgirl, who is difficult to find time to cook. She likes home meals.
【小題3】 Alexander is a college student. He likes running. He wants to know more about the secret of shoes and running.
【小題4】Sammy majors in PE. He will do a research on how to train long distance runners.
【小題5】Nancy is looking for a book about advice on controlling stress, changing appearances, and enjoying a better health

查看答案和解析>>

科目：高中英語 來源：2012-2013學年甘肅省武威第五中學高一9月月考英語試卷（帶解析） 題型：填空題

閱讀下列應(yīng)用文及相關(guān)信息，并按照要求匹配信息。首先，請閱讀以下世界古代奇觀的簡介：
　　A.  The Great Wall was begun more than two thousand years ago.  It was built to keep out invaders.  It extends about six thousand seven hundred kilometers across northern China.  Today,  the Chinese government is working to repairparts of the wall and protect as much of it as possible.  The Great Wall of China is one of the largest building projects ever attempted.  It is also the only object built by people that can be seen from space.
B.  The Coliseum in Rome,  Italy was built almost two thousand years ago.  The ancient Roman sports center could hold fifty thousand people who gathered there to watch public events.  Experts say it is one of the finest examples of Roman design and engineering.
C.  The city of Machu Picchu in Peru includes some of the best stone works ever built.  The ancient Inca people built Machu Picchu high in the Andes Mountains,  northwest of the city of Cuzco.  Machu Picchu is about thirteen square kilometers.  Historians say it might have been one of the last places of safety for the Incas who were fleeing invaders from Spain.
D.  India is famous for its temples and buildings.  The most famous is the Taj Mahal,  considered one of the most beautiful buildings ever built.  The fifth Mughal emperor,  Shah Jahan,  ordered it built in Agra in sixteen thirty-one.  He built it as a burial place in memory of his wife.  The Taj Mahal has tiny colorful stones inlaid in white marble.  The structure seems to change color during different times of the day and night.
E.  Abu Simbel was built more than three thousand years ago.  It is about 280 kilometers south of Aswan on the western bank of the Nile River.  It took an army of workmen and artists more than thirty years to cut the huge temple into the face of a rock mountain.  In front of the main temple are four huge statues of Ramses the Second.  Each statue is about twenty meters high.
F.  Stonehenge also belongs on a list of ancient wonders. It is a circle of huge stones in southeastern England.  Experts believe work began on Stonehenge about five thousand years ago.  We know very little about Stonehenge. We do not even know how these huge stones were moved to the area.  Much has been written about Stonehenge,  but experts say they still are not sure what it was used for.
以下是旅行者的信息，請匹配他們計劃參觀的世界奇觀。
【小題1】Mr.  Smith, who comes from Rome, Italy,  plans to visit Asia.  He hears about a beautiful building which tells a moving story about the love between an ancient ruler and his wife. ＿＿
【小題2】Li Hua, who has been to the Great Wall several times, plans to visit an ancient wonder in Europe which has as long a history as the Great Wall. ＿
73.  Cindy, who comes from India, plans to visit an ancient temple on the bank of a famous river in Africa.  The temple, in front of which there were some huge statues,  is one of the greatest stone works ever built. ＿
【小題3】Jack will visit one of the oldest stone works ever built by people.  It was made up of huge stones, but how ancient people moved the stones and why they built it remain a mystery.＿
【小題4】A scientist will be sent into space.  He hopes he can see an object built by human beings when he looks at our earth with his bare eyes. ＿＿

查看答案和解析>>

科目：高中英語 來源：2013屆河北省東光縣第一中學高三上學期期中考試英語試卷（帶解析） 題型：填空題

補全短文
注意；E涂AB  F涂AC   G 涂 AD（10分）
Let children learn to judge their work．71 ．If corrected too much, he will stop talking．He notices a thousand times a day the difference between the language he uses and the language those around him use．Bit by bit, he makes the necessary changes to make his language like other people’s．72 They learn to do without being taught to walk, run, climb, whistle, ride a bicycle, compare their own performances with those of more skilled people, and slowly make the needed changes．
But in school we never give a child a chance to find out his mistakes and correct them for himself．73 we act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to．Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not．
If it is a matter of right answer, as it may be in mathematics or science, give him the answer book．74 Why should we teachers waste time on such routine work? 75  Let the children learn what all educated people must some day learn, how to measure their own understanding, and how to know what they know or do not know．

A．Children learn to do all the other things in the same way．
B．Let him correct his own papers
C．Point out his mistakes
D．We do it all for him
E．We allow him to learn from other children
F．A child learning to talk does not learn by being corrected all the time
G．Our job should be to help the child when he tells us that he can’t find the way to get the right answer

查看答案和解析>>

科目：高中英語 來源：2012-2013學年遼寧盤錦第二高級中學高一上第二次階段考試英語試卷（帶解析） 題型：填空題

Every childwants to have pocket money(零花錢). Why do their parents just give them some money?  【小題1】 
The amount of money that parents give to their children differs from family to family.   【小題2】   Some children get weekly pocket money. Others get monthly pocket money.
First of all, children are expected to make a choice between spending and saving. Then parents should make the children understand what they expect their children to buy with the money. At first, some young children may spend all of the money soon after they receive it. Parents are usually advised not to offer more money until it is the right time.    【小題3】 
In order to encourage their children to do some housework, some parents give pocket money if the children help around the home. Some experts(專家) think it not wise to pay the children for doing that.    【小題4】 
Pocket money can give children a chance to experience the three things they can do with the money. They can spend it by giving it to a good cause. They can spend it by buying things they want.   【小題5】 Saving helps children understand that costly goals require sacrifice. Saving can also open the door to future saving and investing for children.

A．Some children are not good at managing their pocket money.
B．As helping at home is a normal part of family life.
C．Learning how to get money is very important for every child.
D．By doing so, these children will learn that spending must be done with a budget（預(yù)算）.
E .Timing is another consideration.
F .They can save it for future use.
G .One main purpose is to let kids learn how to manage their own money.

查看答案和解析>>

同步練習冊答案