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1、课时作业8Using languageAWhen a mathematics student was examined in the hospital, Dr John Lorber discovered that he had almost no brain at all.Normally, the condition is quite severe in the first months of babyhood.Even when someone survives, he or she is usually seriously disabled.Somehow, though, the s
2、tudent had lived a perfectly normal life and went on to gain a degree in mathematics.This case is by no means as rare as it seems.Lorber has identified (确认) several hundred people who have very small brains but who appear to be normally intelligent people.He describes some of them as having “no dete
3、ctable brain”， yet they have scored up to 120 in IQ tests.No one knows how people with “no detectable brain” are able to function at all, let alone graduate in mathematics.One suggestion is the old idea that we only use a small percentage of our brains anywayperhaps as little as 10 per cent.But more
4、 recent research shows this idea is a misunderstanding dating from research in the 1930s in which the functions of large areas of the brain could not be determined and were named “silent”， while in fact they are linked with important functions like speech and abstract thinking.The other interesting
5、thing about Lorbers findings is that they remind us of the secret of memory. At first it was thought that there is a part in the brain for memory, like the memory chips in a PC.But further research of the brain has turned up the surprising fact that memory does not depend on any particular area in t
6、he brain.As one scientist put it, “Memory is everywhere in the brain and nowhere.”But if the brain is not a place for classifying and storing experiences and analyzing them to enable us to live our lives, then what on earth is the brain for？And where is the seat of human intelligence? Where is the m
7、ind?本文是一篇科普类说明文。作者从一个“无脑人”案例入手，分析了人类大脑的功能问题。1What will usually happen to a very young baby without brain?AIt will die.BIt will survive.CIt will be intelligent.DIt will become disabled.答案：A解析：推理判断题。根据第一段中的第二句和第三句可知，通常情况下，在出生的前几个月里，这种情况(无脑)是非常严重的，有人即使存活下来，通常也会有严重的残疾。由此可知，这种情况对婴儿来说死亡率很高，故选A项。2What is t
8、he new finding of the functions of the brain?AMuch of the brain is useful.BThe brain is in fact of no use.CThe brain determines ones IQ.DOnly a small part of the brain is used.答案：A解析：细节理解题。根据第三段中的第二句可知，旧的观点是我们仅仅用了大脑很小的一部分，但下文对这一观点进行了否定。“But more recent research shows this idea is a misunderstanding.
9、abstract thinking.”即这种旧观点是一种误解。由此可知，我们并非只使用大脑中很小的一部分，而是大脑的大部分区域都跟重要的功能相关联，都是有用的，故选A项。3What do we know about the existence of memory?AWe use all of our brain.BWe have memory chips.CWe are fully aware of it.DWe are still confused about it.答案：D解析：推理判断题。根据题干中的关键词memory 定位到最后两段。作者在指出关于人类记忆的两种截然不同的观点之后，连续
10、提出了三个疑问，因此可知我们对于记忆的存在依然是很困惑的，故选D项。BFuturologists (未来学家) predict that life will probably be very different in 2050 in all the fields of activity, from entertainment to technology.First of all, it seems that TV channels will have disappeared by 2050.Instead, people will choose a programme from a “menu
11、” (菜单) and a computer will send the programme directly to the television.Today, we can use the World Wide Web to read newspaper stories and see pictures on a computer thousands of kilometers away.By 2050, music, films, programmes, newspapers and books will come to us by computer.We will also be able
12、 to see, smell and touch the things that we see on television.In transport, cars will run on new, clean “gas” and they will go very fast.Cars will have computers to control the speed of the car and there wont be any accidents.Today, many cars have computers that tell drivers exactly where they are.B
13、y 2050, the computer will control the car and drive it to where you want to go.Space planes will fly all over the world and people will fly from Los Angeles to Tokyo in just two hours.In technology, robots will have replaced people in factories.Many factories already use robots. Big companies prefer
14、 robotsthey do not ask for pay rises or go on strike, and they work 24 hours a day. By 2050, we will see robots everywherein factories, schools, offices, hospitals, shops and homes.Last but not least, medicine technology will have conquered many diseases.By 2050, we will be able to help blind and de
15、af people see again and hear again.Scientists will be able to produce clones of people and decide how they look, how they behave and how much intelligence they have.本文是一篇说明文。文章从娱乐、交通、机器人、医药学等角度对2050年时人类生活的变化进行了展望。4What is NOT true about television by 2050 according to this passage?AOne will be able
16、to smell the food on television.BOne can have a try of the food you see on television.CThere will be no channels for us to choose programmes.DTelevisions will be completely controlled by computers.答案：B解析：细节理解题。第一段最后一句提及未来人们可以看、闻、触摸电视上的东西，但没有提及可以品尝。故B项表述与文章不符。5What can be the development of transport that benefits people most by 2050?ACars will go at a very high speed on thei
