题目内容
A special laboratory at the University of Chicago is busy only at night. It is a dream laboratory where researchers are at work studying dreamers. Their findings have discovered that everyone dreams from three to seven times a night, although in ordinary life a person may remember none or only one of his dreams.
While the subjects—usually students—sleep, special machines record their brain waves and eye movements as well as the body movements that signal the end of a dream. Surprisingly, all subjects sleep soundly.
Observers report that a person usually fidgets(烦躁不安) before a dream. Once the dream has started, his body relaxes and his eyes become more active, as if the curtain had gone up on a show. As soon as the machine shows that the dream is over, a buzzer wakens the sleeper. He sits up, records his dream, and goes back to sleep—perhaps to dream some more.
Researchers have found that if the dreamer is wakened immediately after his dream, he can usually recall the entire dream. If he is allowed to sleep even five more minutes, his memory of the dream will have disappeared.
【小题1】According to the passage, researchers at the University of Chicago are studying ____.
| A．contents of dreams | B．dreamers while they dream |
| C．the meaning of dreams | D．the progress of sleeping |
| A．everyone dreams every night |
| B．dreams are easily remembered |
| C．dreams are likely to be frightening |
| D．One person dreams only one dream a night |
| A．the depth of sleep |
| B．the subjects’ brain waves and eye movements |
| C．how many dreams a person has |
| D．what a sleeper dreams during his sleep |
| A．was of most interest to him |
| B．occurred immediately after he went to sleep |
| C．occurred just before he woke up |
| D．was the longest one to him |
【小题1】B
【小题2】A
【小题3】B
【小题4】C
解析试题分析：本文介绍芝加哥大学的研究人员是用机器来记录人的脑电波和眼球的运动，研究的做梦的人，发现人每天晚上会做梦，但大部分人都不记得做的梦。但可以记住醒来之前做的梦。
【小题1】细节题：从第一段的句子：It is a dream laboratory where researchers are at work studying dreamers.可知芝加哥大学的研究人员是研究的做梦的人。选B
【小题2】细节题：从第一段的句子：Their findings have discovered that everyone dreams from three to seven times a night, 可知人每天晚上会做梦。选A
【小题3】细节题：从第二段的句子：special machines record their brain waves and eye movements as well as the body movements that signal the end of a dream.可知机器是用来记录人的脑电波和眼球的运动。选B
【小题4】细节题：从最后一段的句子：Researchers have found that if the dreamer is wakened immediately after his dream, he can usually recall the entire dream.可知人们记住醒来之前做的梦。选C
考点：考查科普类短文
点评：此类文章的最大的障碍是词汇以及考生对阅读内容的不熟悉，需要考生在阅读的时候有足够的耐心。要养成在上下文串联中猜测词义的能力，根据上下文中出现的同义词，近义词，反义词，以及词义的解释来理解生词。同时要抓住文章的中心，不要受其他信息的影响。要根据题目及选项以及文章的上下文串联合理的判断推理。
数学奥赛暑假天天练南京大学出版社系列答案
南大教辅抢先起跑暑假衔接教程南京大学出版社系列答案
The Peppered Moth, a kind of insect, is found in England. It is light brown in color and likes to settle on trees which are also light brown. This makes the moth difficult to be seen and birds are less likely to notice and eat it.
But with the development of industry, smoke from factories began to reach the trees where the moth settled. It made the trees blacker. Then something very strange took place: in industrial areas, the Peppered Moth began to change color. It became darker as well. Although the change took several years, some scientists soon noticed that newly-born moths were a little darker than usual.
A scientist called Kettle Well decided to make a careful study of this. He marked some of the light moths and some of the darker ones, and set them free in the woods near Birmingham, an industrial city. Later he retarget as many the marked moths as possible ( The result was given in the chart ).
Kettle Well’s research was done in the early 1950s. Soon afterwards Britain introduced new laws to reduce smoke and factory pollution.
Can you imagine what would happen to the Peppered Moth as the air became cleaner again?
| | light moths | darker moths |
| Moths set free | 201 | 601 |
| Moths recaught | 34 ( 16%) | 206 ( 34%) |
A. the Peppered Moth changed its color
B. the Peppered Moth couldn’t be easily found on them
C. industry in England developed quickly
D. the smoke from factories polluted them
2. The Peppered Moth began to change its color in industrial areas because _____________________________.
A. it changed its color all the time
B. it was fond of the color of its living place
C. it had to protect itself by doing so
D. it was a special sort of insect
3. From the results of Kettle Well’s research, we can see that _________________.
A. many more of the light moths were killed or eaten
B. more than one-fifth of the light moths escaped being killed
C. three times as many dark moths were kept safe as light ones
D. more dark moths were killed in industrial areas
4. Kettle Well’s work gives us a good example of _________________________.
A. Air Pollution B. Choice of Color C. Laws of Nature D. Changing Insects
5. As the air became cleaner, _________________________.
A. the number of the light moths increased
B. the total number of the light moths remained unchanged
C. more of the darker moths would be recaught
D. the darker moths changed into the light ones before long
Japanese people,who never miss a chance to be photographed,were lining up to get their pictures on a postage stamp．Vanity（虚荣）stamps with personal photographs went on sale for the first time in Japan as part of an international postage stamp exhibition．The customer’s photo was taken with a digital camera and then printed on stamp sheets,a process that takes about five minutes．Sold in a sheet of 10 stamps for $8．80,little more than the cost of lunch in Tokyo,each stamp printed a different scene from a traditional painting along with the photo．
The stamps can be used normally to mail a letter,and postal officials hope they will help encourage interest in letter writing in the Internet age．“Certainly e-mail is a useful method of communication,but letters are fun in a different way,”said Hatsumi Shimizu an official in the Post Ministry．“We want to show young people that letters can be fun too．”
While similar stamp sheets appeared in Australia in 1999 and are now sold in some nations and territories,Japan’s fondness for commemorative photos is likely to make them especially popular here．Indeed,officials had prepared 1 000 sheets but they were sold out in less than 30 minutes．Although the stamps are currently only available as a special service during the exhibition,postal officials said they may start selling them on a regular basis in the future．
【小题1】The best title of this passage might be______．
| A．Never Miss a Chance to be Photographed | B．Your Own Face on a Postage Stamp |
| C．First Japanese Postage Stamps with a Photo | D．Letters are as Fun as E-mails |
| A．this service is not very expensive | B．the cost of this service is very high |
| C．food in Tokyo is very dear | D．$8．80 is a very small amount of money |
| A．to make the international postage stamp exhibition more interesting | |
| B．to make more stamps for normal use | C．to draw interest in writing letters |
| D．to satisfy Japan’s fondness of commemorative photos |
| A．Japanese people like to take photos． | B．This kind of stamps must be used to mail letters． |
| C．Japanese people can get this kind of stamps easily after the stamp exhibition． | |
| D．This service is more popular in Japan than in other places． |
There is one language that is used in every country in the world. The people who use it are young and old, short and tall, thin and fat. It is everybody’s second language. It is easy to understand, although you can’t hear it. It is sign language.
When you wave to a friend who is across the street, you are using sign language. When you smile at someone, you are saying, “I w
ant to be friendly”, but you are not using speech. You are using sign language. When you raise your hand in class, you are saying, “Please ask me. I think I know the correct answer.”
Babies who can’t talk can point at things. They are using sign language. A policeman who wants to stop traffic holds up his hands. He is using sign language.
Many years ago, a French priest（神父）, Charles Michel de Epee, became interested in education for deaf people. He invented a finger alphabet (字母表). It is still in use. People can make the sign for letters and spell words with their hands, and deaf people can read and understand them. Soon there were schools for the deaf in many countries. The only university for the deaf is Gallaudet College in Washington, D.C.
Today, in the United States, there are special TV news programs for deaf people. The newsreader tells the news in sign language. At the same time, the words appear on the TV screen.
The actors in the Theatre of Deaf don’t spell every word. Sometimes they use hand signs. When they put two hands together, it means sandwich. They can make a roof with their hands when they want to show a house. One finger in front of an actor’s mouth can mean quiet. You can talk to people who are behind windows that are closed. And when you go swimming with your friends, you can have conversations und
er water.
How many hand signs do you use every day?
【小题1】. Which of the following about sign language is TRUE?
| A．It is a special language used in a few countries in the world. |
| B．It is a way to express one’s ideas without words. |
| C．It is only used by the deaf. |
| D．It can be heard. |
| A．raise your hand | B．put one hand onto the other |
| C．smile to the person | D．make a roof with your hands |
A. Hand signs instead of finger signs are used everyday.
B. There are schools, colleges and universities for the deaf in the USA.
C. The French priest Charles invented sign language.
D. Even babies are using sign language.
【小题4】.The passage is mainly about ______.
| A．an introduction to sign language | B．the importance of sign language |
| C．a famous priest in France | D．how to use sign language |
A. Concern, affection, expectation. B. Concern, hatred, expectation.It was time for Mr. Rocco to shut up shop when I hurried into the florist’s. “Now, what is it you want?” Mr. Rocco turned to me. “I want the most beautiful flower you have.” I replied. “And just how much do you have to pay for this most beautiful flower?” I held out a wet hand showing a quarter and dime. He nodded, and then showed me a plant on the counter. “I can give you this one for 35 cents.” he said. “Aw, gee,” I protested, “it looks like a weed!” About 18 inches high, the plant was in a small pot covered with faded red paper. “Now trust me, boy—I promise that tomorrow morning when you get up, you will find your most beautiful flower.” said Mr. Rocco. I knew him to be a good honest man, so I agreed to take it.
It was almost midnight when I arrived home. Mom was seriously sick and using the front bedroom. I looked in to see if she was asleep, and then quietly tiptoed in and set the plant on the table beside her bed. I wanted her to be surprised when she woke on Mother’s Day.
The next morning, I dressed and hurried downstairs. The sun was shining through kitchen window as I looked into Mom’s room. She motioned for me to come in, then glanced over at the table where the plant was. Holy mackerel! There were three big yellow trumpet-shaped（喇叭状的）blooms. It was just like Mr. Rocco said—the most beautiful flower I ever saw! When I looked at Mom, she was smiling as tears streamed down her cheeks. She held out her hand for me to come near, then pulled me close and hugged till it hurt. Then, remembering her contagious condition and that she wasn’t supposed to touch me, she quickly let me go.
My dear mom died the next night. The moment she hugged me turned out to be the most wonderful moment of my life. Not only had that beautiful plant helped show just how much I loved her, but I’d always know how much she loved me.
【小题1】 The author didn’t like the plant recommended by Mr. Rocco at first because ______.
| A．the packing of the plant was shabby |
| B．the plant was more a weed than a flower |
| C．the plant appeared too ordinary to be the most beautiful |
| D．he thought Mr. Rocco was reluctant to do the deal with him |
| A．she was at the death’s door | B．she suffered from the illness |
| C．others were sick of her appearance | D．virus might spread from her to others |
| A．she liked being given gifts |
| B．she valued what the author had done for her |
| C．she was aware of the approaching of death |
| D．she was touched by the beauty of the flower |
| A．time | B．logic | C．comparison | D．cause and result |
| A．Flowers of Love | B．A Son’s Love for Mother |
C．Low Price, High Value | D．A Special Mother’s Day |