成考
If you are writing or studying,it makes very much difference where the light comes from.People who use books and pens every day have to be especially careful about the way the light shines on their work. Every house gets its light either from daylight thr
题目
Every house gets its light either from daylight through the windows--which is the best to use--or from lamps or electricity;but whichever kind of light it is,the way it shines toward our book or work is a matter of great importance to the eyes.
Take a book,sit with your back toward the window,and try to read.Your shadow（影子）falls all over the page and makes it almost as bad for your eyes as if you were in a dark room.
Now turnaround and face the window.The page is in the shadow again,while the bright light is in your eyes.
Try sitting with your right side toward the window.This is very well for reading,but if you were writing,the shadow of your hand would fall across the page and bother（打搅）you a little.
There is just one other way:sit with your left side to the window.Now everything is perfect for reading and for writing,too.
Whatever kind of light is in the room,the rule about the right to sit is always the same.
Which of the following is true?
B.The way the light shines on your work makes no difference.
C.We needn't care about where the light comes from.
D.People can write or study under a light that comes from any direction.
相似问题和答案
第1题：
A
When you look at the sky at night，the moon looks bigger than the stars． In fact，the moon is much smaller than the stars．It is much smaller than the earth． But the moon is much closer to us than any star． That is why it looks so big． If you hold a coin close．to your eye，it looks big．If you look at it across the room，it looks small．The moon moves around the earth． It makes one trip in about four weeks． The moon looks flat(扁的)to us． But it is a round ball，like the earth．People once thought the moon had fire(火) on it． They thought the fire made it bright．Now we know the moon is like a mirror( 镜子 )． It gets its light from the sun Our sunlight comes from the sun，too: What is the sun? The sun is star． The stars we can see have their own light． There are many big stars we can-t see． Their light has burned out． Others are still bright，but they are so far away that we can-t see them． The sun looks bigger and much brighter than other stars because it is the nearest of all stars． The sun and the other stars we see are very hot，but the air around us saves us from(使------免于) the heat(热量) of the sun．The sun gives us light and warmth．It makes plants grow and leaves turn green． It makes life possible on our earth．It is a life-giving star．
( )21． The moon looks bigger because__________ ．
A． some stars are smaller than it
B．it is between the sun and the earth
C．it is the closest to the earth
D．it is very bright
．21.C 【解析】由第一段中。But the moon is much closer to us than any star.打可知。
第2题：
Parallelism is NOT used in ________.
A、A yellow beam of sunlight, filtering through the muslin curtains, slanted on to the table, where a matchbox, half open, lay beside the inkpot.
B、Who would want to remonstrate and argue with them?
C、It is not so with me, to whom sleep is a coy mistress, much given to a teasing inconsistency and for ever demanding to be wooed – “lest too light winning make the prize light.”
D、… for even after the most eventful day, there is no comparing notes with them, no midnight confidence, no casting up the balance of the day’s pleasure and pain.
第3题：
C
In most situations, light helps us see. But nowadays humans are using too much of it so that it is in fact a kind of pollution.
When it comes to looking at the night sky, too much light makes it difficult for us to watch some of life’s most wonderful sights: stars, planets and even galaxies(星系).
According to scientific research, about 2, 500 stars can be seen by the human eye without using any special equipment(设备). But because of light pollution, you can only see 200 to 300 stars from today’s countryside, and no more than ten stars from a city. In most big cities, people cannot see the sky filled with stars like they did in their childhood.
Light pollution affects more than just our view of sky. Research shows that lots of nighttime light can harm wildlife, too.
When birds fly to another place over cities, they sometimes get lost by the brightness and fly in circles(圈) until they drop from tiredness. Sea turtles(海龟) need dark beaches for laying eggs, but they can’t find their ideal places because of those bright lights.
Too much light at night may even affect human health, but scientists are not sure of that. They are still learning more.
In order to prevent things from going worse, governments and some organizations are working to reduce light pollution. Many cities and towns have taken action to reduce the use of lights at night. Lights are used only when and where they are truly needed. They also shine lights down at the ground instead of up into the sky and use lower brightness levels.
Hopefully, in the near future, humans can enjoy the clear and beautiful sky again and all the wildlife will live a peaceful and undisturbed life, too.
27. Why does the writer think that too much light is a kind of pollution?
A. Because there are fewer and fewer stars.
B. Because human health has been affected.
C. Because too much light is a waste of energy.
D. Because some of the wildlife can be harmed.
第4题：
A、considerable
B、considerate
C、concerned
D、careful
第5题：
A: Could you tell me where you were studying at that time? B: ( ).
A、Oh, really?
B、Yes, I could.
C、enjoyed the game very much.
D、was studying at the University of Sydney
解析：问：那时你在哪里学习?四个选项中“我在悉尼大学学习”比较合理
第6题：
听材料，回答下列问题： Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks with the exact words you have just heard.Finally, when the passage is read for the third time, you should check what you have written. Shift work is concentrated in the most dangerous areas of employment. It has various effects on health and daily life. Shift workers, especially those who work nights, can 26 a number of health problems. They include sleep 27 , depression, high blood pressure, heart disease, and 28 Experts now realize that sleep loss are dangerous and that night shift always results in sleep loss. Most people need 8 hours of sleep a day to feel 29 . Parts of the night sleep are spent in light sleep stages and the other parts of the night are spent in deep sleep stages. If you work the night shift and sleep during the day, there are many things that can 30 your deep sleep and awaken you during your light sleep phase. Noise is the biggest problem. Daytime sleepers have to 31 noisy neighbors, children, traffic, lawn mowers and such. Noise is the most common 32 of people who sleep during the day, so noise prevention should be given top priority. When looking for a home to rent or buy, always look for one in a quiet 33 Another sleep 34 is too much light. Our bodys entire cycle is based upon light and dark. If you are doing the opposite of this set body program, you are 35 generations of programming. Since sunlight will disturb your day you should choose a house where the bedroom is on the north side of the house. Wear a black eye mask to further block out the light while you are sleeping. 第26题应填____
第7题：
A、of/ of
B、of/ for
C、for/ of
D、for/ for
第8题：
A
The undersea world is very beautiful． Now more and more people want to dive in the water to find the secrets there． Scuba diving is a new sport today． It can take you into a wonder-ful undersea world．
You will find many strange animals in the sea． Some are as large as a school bus． Many sea animals give out light in the dark and some have sharp teeth．During the day， there is enough light． Here， under the sea， everything is blue and green．When fish swim nearby， you can catch them with your hands． When you have bottles of air on your back， you can stay in deep water for a long time． However， you can-t dive too deep． And you must be very careful when you dive in deep water．The deep sea is not an easy place to live in． It-s cold， and it，s dark， too． The deeper it is， the less sunlight there is． At about 3，000 feet， there is no light at all． It is very dark in the sea． Many fishes have no eyes． Some have big eyes． A few have eyes on one side． Besides the cold and the darkness， deep-sea animals face a third danger-other animals．
Animals eat! They must find food to eat． Many animals eat plants． However， some am-mals eat meat． This means these sea animals have two big jobs． They need to find animals as food， and they have to try not to become other animals' meal．
( )21． Why do people want to dive in the sea? Because ________ ．
A．they want to catch fish
B． they want to find the secrets of the undersea world
C． the sea is deep
D， there are all kinds of plants in the sea
21.B【解析】由第一段第二句可知
第9题：
Goodbye!_about you every day until you come back.
A. I think
B. I'll have thought
C. I'll be thinking
D. I thought
第10题：
B
Thus is not a diet．lt's a simple way to lose weight． And you don-t even have to give up the food you love or join a gym． You just follow some habits that thin people have． Keep them，and you'll become thin．
(1)Wake-up
When you wake up in the morning， sit up slowly without using your hands． With legs straight out，bend(弯曲) forward until you feel sore in your back． It will burn about 10 calories ．
(2)Start with soup
When you have a meal，order a clear soup，and have it before having the main food． In this way，you'll feel fuller，so you'll eat less when the main food comes．
( 3) An apple(or more) a day
Apples are full of fiber(纤维) and water，so your stomach will want less food． The study ．shows that people who eat at least three apples a day lose weight．
(4)Stand up and walk around
Every time you use the mobile phone，stand up and walk around． Heavy people sit on aver-age(平均) two and a half hours more each day than tlun people． This skill is very important，as standing up and walking around will burn 50 0r more calories．
Use these skills，and you will have a big weight loss．
( )26． What should we have first if we want to eat less main food?
A．Soup．
B．Ice cream．
C．Salad．
D．Cheese．
26．A【解析】由原文中减肥方法(2)可知“如果你想吃少量的食物，你应当先喝一些汤”，故选A。