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三、阅读理解：(共20小题，满分40分) 阅读下面短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并把答案写在答题卷上。 A It is sometimes said that strange flying objects have been seen high up in the sky. People call these strange objects Unidentified Flying Objects (UFOS). These UFOs caused a lot of interest. Some of the reports about them are difficult to believe. Some have been explained in scientific ways. Others have never been explained. Here is an account of UFOs from a report. Dennis Burdens, who wrote an article, tells us that he once saw a UFO himself. He was having dinner one night with a friend near Tripoli, Libya, and after dinner the two men walked across a yard to his room to look at some papers. Burdens noticed that the moon looked strange that night. “It wasn't the moon”, was the reply. They watched the light and saw that it was moving. It seemed to be an object rather like a big plate. In some ways it looked like smoke with a light on it, but it wasn't smoke because it didn't change its shape. It was moving in a regular way. That is to say, it didn't go suddenly faster or more slowly, and it didn't go higher or lower. So the two men decided that there must be men in it. After that, Burdens said that he felt eyes looking at him. He was being watched in the darkness. When it was nearer, they noticed that the bottom parts were brighter than the top. The bottom was yellow and the top red. Then the object suddenly turned away and left Libya, moving very fast. On a later day Burdens talked to other people about it, and he found some who had seen it. They all described it in the same way. Could they all be mistaken? 66. UFOs are _____. A . flying high up in the sky B. strange flying objects C. difficult to believe D. very interested 67. The UFO moved _____. A. regularly B. in a changeable way C. slowly D. fast 68. The UFO looked like _____. A. smoke B. a large plate C. light D. a jumping object 69. The UFO was seen _____. A. by Burdens and his friend B. brighter in the darkness C. by several people D. to have a yellow bottom and a red top in the same way B We often hear people say, “I have a good memory for things like that” or “I can remember names”. But do you know memory is the single most important thing and it has played a very important part? For early men, there were dangerous all around them----bad weather, wild animals. The keys to keep on living lay in man's ability to remember these dangers and the ways he had dealt with them in the past. In order for memories to be stored, the human brain became more complex. And as man learned how to deal with them, he became civilized (文明).Surprisingly, scientists today understand little about memory and how it works. They have not yet found a way to open up the brain and observe its function without destroying it. Perhaps there are two types of memory: short-term and long-term. Short-term refers to those facts that stay with us for a few seconds to a few hours. For instance, when you stay at a hotel, you remember the room number and forget as soon as you leave. Long-term memory, on the other hand, means you remember things for a long period of time. If you spend your honeymoon in a particular hotel, it's likely that you'll remember your stay quite clearly. Scientists also believe that a short-term memory can become a long-term memory through consolidation(巩固). A lot of chemical and physical changes take place in the part of the brain. Although the human brain weighs three pounds, it contains 30 billion nerve cells(神经细胞) acting like a computer. When those changes strengthen the links(联系) in certain nerve cells, a though becomes a part of the long-term memory. 70. According to the author, without the development of man's memory there would be _____. A. no modern world B. no recorded history C. no animals D. no dangers 71. Scientists' knowledge about the function of brain is _____. A. interesting B. not enough C. great D. encouraging 72. Short-term memory can change into long-term memory on condition that _____. A. memory is good B. it acts like a computer C. people do more exercise D. the links in nerve cells are strengthened by certain changes 73. So far the great discovery scientists have made about the function of brain is _____. A. the weight of brain B. two types of memory C. 30 billion nerve cells D. chemical and physical changes C I'm writing this letter slowly because I know you can't read fast. We don't live where we did when you left home. Your dad read in the newspaper that most accident happened within 20 miles from your home, so we moved. I won't be able to send you the address because the last family that lived here took the house numbers when they moved so that they wouldn't have to change their address. This place is really nice. It even has a washing machine I'm not sure it works so well though: last week I put a load in and pulled the chain and haven't seen them since. The weather isn't bad here. It only rained twice last week; the first time for three days and the second time for four days. About that coat you wanted me to send you, your uncle Stanley said it would be too heavy to send in the mail with the buttons on so we cut them off and put them in the pockets. John locked his keys in the car yesterday. We were really worried because it took him two hours to get me and your father out. Your sister had a baby this morning, but I haven't found out what sex it is yet. The baby looks just like your brother. Uncle Ted fell in a whiskey vat last week. Some men tried to pull him out, but he fought them off playfully and drowned. We had him cremated and he burned for three days. (责任编辑：admin) |