大学英语四级阅读提分练习和答案

　　下面是学习啦小编整理的大学英语四级阅读提分练习和答案，希望对大家有帮助。

　　Some kids start to drink alcohol (酒精) at a young age. They think it is part of becoming an adult. They also think drinking is not that bad because so many people do it. They feel it is not as bad as taking drugs. It is easy for kids to get liquor (酒精饮料)by using fake identification (伪造证件).

　　Parents may start to notice a change in their child’s behavior if the child starts drinking. Kids who drink sometimes stop doing things they normally liked to do. They may keep telephone calls and meetings a secret and not want anybody to touch their things. They act moody (喜怒无常) and do not have the same eating and sleeping habits.

　　Parents need to stay involved (牵涉) in their kids’ lives. They should talk to their children about their problems to be aware of any changes.

　　Parents can be the best protection. Children who get a lot of love can feel good about themselves. It helps them resist(抵抗) doing bad things even when other kids are doing them. Parents can also help set a good example by not drinking and driving. They can have firm rules in the home that everyone follows.

　　Give the children good ideas on how to say “no” to drinking, even when they are at a party. Try not to overreact or panic (惊慌) if the child tries alcohol. How you handle it can affect their attitude. It may be helpful to talk to other parents about setting up curfews (宵禁令) and rules about parties or other events.

　　1. Which of the following is NOT the reason why some kids have an early start of drinking?

　　A. They want to show their maturity (成熟) by drinking alcohol.

　　B. Drinking alcohol is much cooler than taking drugs.

　　C. They are affected by many other people around them.

　　D. They can get liquor easily.

　　2.According to the passage, what changes may happen to the kids who start drinking?

　　A. Nothing serious will happen to them.

　　B. They keep the same eating and sleeping habits.

　　C. They can control their moods quite well.

　　D. Sometimes they act secretly.

　　3.According to the writer, if parents find their children try alcohol, they had better ________.

　　A. punish them at once

　　B. ask the police for help

　　C. ask their children’s friends for help

　　D. set up curfews and rules about parties or other events with other parents

　　4.Which is the main subject discussed in the passage?

　　A. Teen health. B. Teen education.

　　C. Teen drinking D. Parents’ worries.


 

　　答案解析

　　1. B 由第一段，用排除法。

　　2. D 由第二段“They may keep telephone calls and meetings a secret and not want anybody to touch their things.”可知。

　　3.由最后一句可知。

　　4.C 纵观全文，可以看出讲的是青少年喝酒的问题。


 

　　Passage 2

　　The human brain contains 10 thousand million cells and each of these may have a thousand connections. Such enormous numbers used to discourage us and cause us to dismiss the possibility of making a machine with human-like ability,but now that we have grown used to moving forward at such a pace we can be less sure. Quite soon，in only 10 or 20 years perhaps，we will be able to assemble a machine as complex as the human brain,and if we can we will. It may then take us a long time to render it intelligent by loading in the right software (软件)or by altering the architecture but that too will happen.

　　I think- it certain that in decades not centuries*machines of silicon (桂)will arise first to rival and then exceed their human ancestors. Once they exceed us they will be capable of their own design. In a real sense they will be able to reproduce themselves. Silicon will have ended carbon‘s long control. And we will no longer be able to claim ourselves to be the finest intelligence in the knowledge.

　　As the intelligence of robots increases to match that of humans and as their cost dec ines through economies of scale we may use them to expand our frontiers first on earth through their alnlity to withstand environments, harmful to ourselves. Thus deserts may bloom and the ocean beds be mined. Further ahead, by a combination of the great wealth this new age will bring and the technology it will provide, the construction of a vast,man-created world in space，home to thousands or millions of people， will be within our power.

　　It can be inferred from the passage that_.

　　A. after the installation of a great number of cells and connections robots will be capable of reproduction

　　B. with the rapid development of technology people have come to realize the possibility of making a machine with human-like ability

　　C. once we make a machine as complex as the human brain»it will possess intelligence

　　D. robot will have control of the vast,man-made world in space

 

　　【讲解答案】

　　B推理题。全文反复提到随着科技的发展，人们能够生产出人工智能型的机器。因此B项符合 文本的含义。