题目内容
Sound travels in the same way as light ________.
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短文改错
此题要求改正所给短文中的错误.对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正：
该行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线划掉.该行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词.该行错一个词：在错的词下画一横线，在该行右边横线上写出改正后的词.
注意：原行没有错的不要改.
We could all see the Murray Uiver slowly moving back, but now all the water was gone . I couldn’t believe that the Murray had dried up, not one drop of water left.One morning I went down to the river to try and catch some fish when I saw my boat high and dry (搁浅) on the bank . I rushed down the river and saw all mud—no water . The fish were just lying there, dying . I looked up to see if my friend was there . There was the nest but no eagle（鹰）. I called out to her with my special whistle which I made out of steel.Suddenly a big shadow came over to me and the eagle landed in her nest and gave her young the food she was out getting while I whistled. But then I suddenly noticed she was getting thinner and had a bit of sheep’s wool in the side of her talon（利爪）. It was deadly quiet by the river bank , except for some sound from my dog. And also I couldn’t see one native animal or bird.When I walked inside the kitchen. Mum and Dad had sad looks on their faces. “It’s time for us to move ,Son, because the river can no longer provide for（养活）us,” said Dad . I ran out of the kitchen door with tears in my eyes , and down to the river bank, to my favorite spot. I said goodbye to my eagle , crying.When it was time to go , I saw my eagle fly up into the air with her chicks in her talons , going away to try and find another home ,just like us.59. The passage is mainly about A. the author’s travel away from his hometownB. the author’s feeling about being away from his friendC. the author’s idea about being away from homeD. the author’s plan to leave for a new place60. The underlined word “chicks” in the last paragraph refers to “ ”A. the eagle’s children B. the eagle’s food C. the eagle’s nest beside the river D. the dog61. According to the passage ,the eagle looked thinner most probably because A. the eagle had to feed its children B. the eagle was seriously sickC. the eagle lost many of his friends D. there was not enough food for her62. According to the passage , it can be inferred that .A. the eagle lived on the ground beside the author’s houseB. it was winter when the writer went awayC. the writer’s parents didn’t like to leave , eitherD. some native animals and birds still lived in the place
Much of the water we use comes from snow. Melting snow provides water for rivers, electric power centers and agricultural crops. In the western United States, mountain snow provides up to 75% of all surface water supplies.
Snowfall helps to protect plants and some wild animals from cold, winter weather. Fresh snow is made largely of air trapped among the snow crystals. Because the air has trouble moving, the movement of heat is greatly reduced.
Snow also is known to influence the movement of sound waves. When there is fresh snow on the ground, the surface of the snow takes in, or absorbs, sound waves. However, snow can become hard and flat as it becomes older or if there have been strong winds. Then the snow's surface will help to send back sound waves. Under these conditions, sounds may seem clearer and travel farther.
Generally, the color of snow and ice appears white. This is because the light we see from the sun is white. Most natural materials take in some sunlight. This gives them their color. However, when light travels from air to snow, some light is sent back, or reflected. Snow crystals have many surfaces to reflect sunlight. Yet the snow does take in a little sunlight. It is this light that gives snow its white appearance.
Sometimes, snow or ice may appear to be blue. The blue light is the product of a long travel path through the snow or ice. In simple terms, think of snow or ice as a filter. A filter is designed to reject some substances, while permitting others to pass through. In the case of snow, all the light makes it through if the snow is only a centimeter thick. If it is a meter or more thick, however, blue light often can be seen.
1.How many functions of snow are discussed in the passage?
A．One B．Two C．Three D．Four
2.Why does snowfall help to protect plants from cold?
A．Because snow crystals contain heat.
B．Because snow crystals have air in them.
C．Because snow crystals are easy to blow away.
D．Because snow crystals send out heat when melting.
3.It can be inferred that ______.
A．hard snow is better in protecting wild animals than fresh snow
B．fresh snow is better in sending sound waves than hard snow
C．fresh snow is better in taking in sound waves than hard snow
D．hard snow provides less water than fresh snow
4.The color of snow and ice appears white because snow crystals________.
A．send back none of the sunlight B．send back all of the sunlight
C．take in most of the sunlight D．take in some of the sunlight
I was blind, but I was ashamed of it if it was known. I refused to use a white stick and hated asking for help. After all, I was a teenager girl, and I couldn’t bear people to look at me and think I was not like them. I must have been a terrible danger on the roads, Coming across me wandering through the traffic, motorists probably would have to step rapidly on their brakes. Apart from that, there were all sorts of disasters that used to occur on the way to and from work.
One evening, I got off the bus about halfway home where I had to change buses, and as usual I ran into something,“I’m awfully sorry,”I said and stepped forward only to run into it again. When it happened a third time, I realized I had been apologizing to a lamppost. This was just one of the stupid things that constantly happened to me. So I carried on and found the bus stop,which was a request stop, where the bus wouldn’t stop unless passengers wanted to get on or off. No one else was there and I had to try to guess if the bus had arrived.
Generally in this situation, because I hated showing I was blind by asking for help,I tried to guess at the sound.Sometimes I would stop a big lorry and stand there feeling stupid as it drew away. In the end, I usually managed to swallow my pride and ask someone at the stop for help.
But on this particular evening no one joined me at the stop;It seemed that everyone had suddenly decided not to travel by bus. Of course I heard plenty of buses pass,or I thought I did.But because I had given up stopping them for fear of making a fool of myself,I let them all go by.I stood there alone for half an hour without stopping one.Then I gave up.I decided to walk on to the next stop.
1.The girl refused to ask for help because she thought_________
A.she might be recognized B.asking for help looked silly
C.she was normal and independent D.being fond blind was embarrassing
2.After the girl got off the bus that evening,she_________.
A.began to run B.hit a person as usual
C.hit a lamppost by accident D .was caught by something
3.What was the problem with guessing at the sound to stop a bus?
A.Other vehicles （车辆）also stopped there.
B.It was unreliable for making judgments.
C.More lorries than buses responded to the girl.
D.It took too much time for the girl to catch the bus.
4.Finally the girl decided to walk to the next stop,hoping__________.
A.to find people there B.to find more buses there
C.to find the bus by herself there D.to find people more helpful there
