No one really knows why we sleep. There are two theories, but a theory is only an idea or a guess. Even scientists don't know if these theories are correct or not.
One theory of sleep is called the “Repair Theory.” This theory says that during the day we use many important chemicals in our bodies and brains. We need sleep to make new chemicals which we will use the following day. (64) One piece of evidence for this theory is that our bodies produce more of a growth hormone (a chemical that helps us grow) while we sleep.
Another theory is called the “Adaptive Theory.” This theory says that sleep developed gradually and naturally because it stopped early humans and animals from wasting energy and putting themselves in danger from the other animals that killed and ate them; in other words, sleep kept them safe and out of trouble. It was necessary for their survival.
Whatever the reason for sleep, everyone sleeps and everyone dreams every night. Many times we don't remember our dreams, but we still dream. Like sleep, no one knows exactly why we dream or what dreams mean. There have been many theories about dreams throughout history. Many cultures believe that dreams can foretell the future that they can tell us what is going to happen to us. Sigmund Freud and other psychologists and psychiatrists (精神病学家) believe that dreams tell us about our feelings and desires.
(65) However, some scientists now believe that dreams mean nothing at all—dreams are caused by the electrical activity in our brains while we sleep. These scientists believe that nerve cells fire aimlessly and our brains try to make a story out of these meaningless patterns. These scientists say that dreams seem crazy and without meaning sometimes because they are crazy and without any meaning at all.
Questions 60—63: The table below shows different theories of sleep and dreams. Fill in the blanks to complete the table.
III. 完形填空(Cloze) (共15小题；每小题1分，计15分)
阅读下面短文，根据首字母提示，在空白处填上适当的单词，使短文语义完整。 (答案写在答题纸上)
Mount Everest is the highest mountain in the world. It is in the Himalayan Mountains (喜马拉雅山脉) b ________ (66) Nepal and China, and it is 8,848 metres high. Sir Edmund Hillary from New Zealand and Tenzing Norgay from Nepal were the first people ever to climb Mount Everest. They climbed it in 1953. Men from several d ________ (67) countries have climbed it since then.
Junko Tabei, a Japanese from Hokkaido, was the f ________ (68) woman to make this difficult climb. A Tokyo newspaper-television company o ________ (69) the Mount Everest climb in 1975. They chose f ________ (70) women from mountaineering clubs to go to Nepal. The g ________ (71) climbed for several days. Then there was an avalanche (雪崩). The heavy ice and snow i ________ (72) ten of the women. They had to s ________ (73) climbing. The other five c ________ (74).
Only Ms Tabei was able to climb the l ________ (75) 70 metres.She stood on t ________ (76) of the world. She was the first woman there.
Ms Tabei was 35 years old at the time. She s ________ (77) climbing mountains in 1960 and still climbs mountains. She is not an ordinary h ________ (78). Her husband works for Honda Motor Company. He likes to climb mountains, too, but he doesn't have e ________ (79) vacation time from his work to go with his wife all the time. So after work he stays home to take c ________ (80) of the house and children.
IV. 翻译 (Translation) (共5小题；每小题2分，计10分) 用括号中所给的提示将下列句子译成英语。(答案写在答题纸上) 81. 他为了卖自己的一幅画特地进城去了。(on purpose)
82. 那个可怜的女孩自从父母过世后经历了许多苦难。(go through)
83. 他是一个能干的人，但是另一方面，他对别人要求太多了。(on the other hand) 84. 我们在推荐他担任该职之前，得考虑他的健康状况。(think of) 85. 到了车站我才发现我的钱包不见了。(not until倒装句)
V. 短文改错(Error correction) (共10小题；每小题1分，计10分)
此题要求改正所给短文中的错误。对标有题号的每行做出判断：如无错误，在该行右边横线上画一个(√)；如有错误(每行只有一个错误)，则按下列情况改正：
此行多一个词：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。 此行缺一个词：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。 此行错一个词：在错的词下划一横线，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。(答案写在答题纸上) Day 73, 18 June
We arrived in Quito last night after a ten-hours bus journey—what a 86. ________ nightmare! The bus was noisy and crowd, so the journey was pretty 87. ________ uncomfortable, and Carrie felt sick most the way. It must have been the 88. ________ chicken she eat for lunch. I told her not to eat it!It wasn't cooked properly.89. ________
Anyway, she listened to her Walkman for the entire journey—even when 90. ________ we stopped for dinner. All my battery were dead so I had nothing to 91. ________ do. She didn't talk to me at all!I was so boring. We're at a hotel 92. ________ now. It's being clean and the food seems OK. I'm on the balcony 93. ________ listening to Radiohead on his minidisc player as I write this. 94. ________ Carrie is sitting on her bed listen to her Walkman and writing 95. ________ her diary. I wonder if she's writing about me. VI. 智力测试 (IQ) (共5小题；每小题1分，计5分) 回答下列问题。(答案写在答题纸上)
96. Kate has a quarter more books than Peter and Peter has a third more books than Jill. Altogether they have 120. How many books does each person have?
97. What weight must be placed at “?” to balance the scale?
98. Can you name five days of the week without saying: Monday, Tuesday, Wednesday, Thursday, or Friday? (You could have them in a different order.)
99. Only one of the sets of five letters below can be put into a different order which spells a five-letter English word. Find the word.
JUCBI NEACH METAP TPHED MUDOP ABUMG ERVIC
100. Visit each circle only once to spell out a ten-letter word.
