Pigs are always considered dirty animals because they roll in mud．But in fact they prefer being quite clean．They cover themselves with mud to help stay cool．During cooler weather, they prefer to stay clean．So do elephants,who also cover themselves in dust or mud to keep cool． When they find a place with clean water they will take a bath，using their long noses to give themselves—or each other—a nice shower
Some animals use dust to get clean．Chinchillas (南美洲栗鼠) have very fine fur． They don`t like to take water baths because water is not warm enough for them．So, instead, they roll around in fine dust．The dust helps to keep their fur and skin dry．This protects them from disease
Usually, a small bird is a light meal for a crocodile．But when a crocodile wants its teeth cleaned．it lies on the ground with its mouth open．The crocodile bird goes in and picks out any parasites(寄生虫)between the crocodile`s teeth or under its tongue．The crocodile gets its mouth cleaned，and the crocodile bird gets dinner．
You wouldn`t think fish would need baths．But some undersea parasites live under the fish`s skin．“Cleaner”fish，like the wrasse(隆头鱼)，help take them away．The wrasse stands on its head and dances to signal a big fish that it is ready to go into the cleaning business．The big fish will stop moving and open its mouth wide so the wrasse can swim inside and pick out parasites and bits of food．
小题1:The passage is mainly about how animals ．| A．stay clean | B．help each other | | C．get their food | D．Take baths |
小题2:What can we learn from the first paragraph about pigs?| A．They can help each other take baths． | | B．They are dirtier during cooler weather． | | C．They prefer taking baths to rolling in mud． | | D．They like to stay cool and clean． |
小题3:Chinchillas use dust to get clean for the following reasons EXCEPT that ．| A． dust can dry their fur and skin | | B．They are not good at swimming | | C．Water is too cold for them | | D．Dust is good for their health |
小题4:From Paragraphs 3 and 4，we earl know that ．| A．some animals can get clean from others`help | | B．Most animals are friendly to each other | | C．small animals couldn`t get food from big ones | | D．All of the animals prefer to stay clean |
小题5:We can infer from the last paragraph that the wrasse| A．is often eaten by other fish | | B．1ikes under other fish`s skin | | C．is a small kind of fish | | D．1ikes taking baths |
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小题1:A
小题2:D
小题3:B
小题4:A
小题5:C |
试题分析：本文是一篇科普类阅读。文章列举了大量的例子介绍了动物们是如何保持洁净的。如猪，南美洲栗鼠及鳄鱼鸟，隆头鱼等。
小题1:主旨大意题。整篇文章都介绍了动物们是如何保持洁净的。故选A。
小题2:细节题。从第一段But in fact they prefer being quite clean．They cover themselves with mud to help stay cool可知正确答案为D
小题3:细节题。文章第二段对ACD均有描述，只有B答案表述不正确，故选B。
小题4:推理判断题。由第三段可知，鳄鱼鸟会帮助鳄鱼清理牙齿；由第四段可知隆头鱼会帮助其他鱼类清理寄生虫。两段共同之处是：某些动物可以依靠其他动物的帮助保持干净。B、C、D三项在文章第三、四段中找不到根据。
小题5:推理判断题。根据文章第四段最后一句可知，隆头鱼可以游入其他鱼类的口中，这说明它是一种小鱼。
点评：文章介绍了动物们是如何保持洁净的。文中列举了大量的例子来介绍动物保持洁净的方式，阅读中要注意把握方式这一线索，多读几遍，然后带着问题通读全文，找出答题依据，完成阅读。 |
核心考点
试题【Pigs are always considered dirty animals because they roll in mud．But in fact th】；主要考察你对
题材分类等知识点的理解。
[详细]举一反三
Children love playing games. That is a well-known fact. Kids learn how to play games at a very early age, and once they find a game they love, they can play for hours and hours. In fact, games for kids are so popular that there is an entire industry dedicated(献身) to designing and selling them. There seems to be a fun game for kids for every occasion. Christmas and birthday are often celebrated with the family tradition of gifting a new game.
In recent years, however, Internet games and gaming system seem to have taken kids’ world by storm. Online games for kids have quickly become a very popular way to pass the time with small children and teens alike. Online games are a great way to have fun, and they can be quite educational as well. Many online games created for specific age groups encourage grade-appropriate development and educational skills.
Hundreds of websites offer fun and educational games to kids. Many of these sites are created by big names, such as National Geographic, which we can trust. They offer free games that parents know are proper for children. Parents are encouraged to go online and research online games proper for their children’s age before allowing their kids to play these games. Parents want to look for parental controls such as the ability to set or monitor their children’s playtime.
With so many options to choose from, parents and children will find it easy to find fun games and activities on the Internet. And nowadays, being able to use a computer is a very important skill for children to learn, so playing on the computer is definitely both educational and fun. Children are sure to learn new skills about any subject with the right, trusted website.
小题1:The industry of games for kids is fast growing probably because ________.| A．the workers are good at designing | | B．children are mostly crazy about games | | C．people would like to celebrate birthdays | | D．kids don’t like to do their homework |
小题2:Which of the following is TRUE of National Geographic Games?| A．The news is updated every day. | | B．There is a large amount of information. | | C．It can help parents to control kids’ playtime. | | D．The games on it are good for kids’ mental and physical health. |
小题3:What’s the author’s attitude to children’s playing computer games?| A．Supportive. | B．Worried. | C．Negative. | D．Doubtful. |
小题4:What would be the best title for this passage?| A．Traditional games and modern games | | B．Computer games harmful to the youth | | C．Games for kids changing a lot ever since | | D．Internet games with fun and education |
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The oil resources which are left will not last very long. This means that all vehicles such as cars, trains, buses, planes and ships that need oil to work will not be able to run. So it will be necessary to develop a new system of transport which uses a fuel more than oil. Electric vehicles are one possibility. In Britain, most families have at least one car and this car is used every day. It could be that only one person in the family drives the car to work or for shopping. The number of cars on the road which are almost empty perhaps helps to explain why the oil is used up so quickly. The family car is a very useful form of transport but it is also a great waste of energy, especially if it is compared with buses or trains. Much petrol is used by a car which is traveling at 120 kilometers an hour. Clearly, it would be better if there were fewer cars on the road and more speed limits so that the oil which is left will last as long as possible.
About 25% of Britain’s total consumption of energy is domestic—it is used only in the home. Just over 20% is used for transport. Most of the energy is used in industry. It is difficult to suggest any possible energy conservation in industry because many of the suggestions would mean that some people would lose their jobs. It is important that industry produces the same amount of products using the same amount of workers.
Obviously, conservation is not going to be the answer to the energy crisis（危机）. The most it can do is to give more time for a better solution to be found. The more time which is available for new sources of energy to be developed, the better it is because there is still a lot of work to be done in order to find suitable, safe methods of producing energy.
小题1:In Britain, what reason could help to explain why oil is used up very quickly?| A．People use cars every day. | | B．Most families have at least one car. | | C．Many cars on the road are almost empty. | | D．Electric vehicles are used. |
小题2:Which of the following is true?| A．Compared with buses and trains, the family car is useful and can save energy. | | B．A car driving at the speed of 80 kilometers per hour uses half as much petrol as a car traveling at 160 kilometers per hour. | | C．It is possible for people to develop vehicles. | | D．Limitation of the number of cars on the road and their speed will help the oil last longer. |
小题3:What does the underlined word “domestic” mean in Paragraph Two?| A．For household use. | B．On the road. | | C．Slow driving. | D．Fast driving. |
小题4:What is a better way to solve the problem of the energy crisis?| A．Governments should cut down the number of family cars on the road. | | B．The speed of vehicles must be limited. | | C．New sources of energy should be found and developed. | | D．Factories should cut down on production. |
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Many teenagers feel that the most important people in their lives are their friends. They believe that their family members, especially their parents, don’t know them as well their friends do. In large families, it is often for brothers and sisters to fight with each other and then they can only go to their friends for advice. It is very important for teenagers to have one good friend or many friends. Even when they are not with their friends, they usually spend a lot of time talking among themselves on the phone. This communication is very important in children’s growing up, because friends can discuss something difficult to say to their family members.
However, parents often try to choose their children’s friends for them. Some parents may even stop their children from meeting their good friends. The question of “choice” is an interesting one. Have you ever thought of the following questions?
Who choose your friends?
Do you choose your friends or your friends choose you?
Have you got a good friend your parents don’t like?
小题1:When teenagers stay alone, the usual way of communication is to _________.| A．go to their friends | B．talk with their parents | | C．have a discussion with their family | D．talk with their friends on the phone |
小题2:Which of the following is DIFFERENT in meaning from the sentence “Some parents may even stop their children from meeting their good friends.”?| A．Some parents may even not allow their children to meet their good friends. | | B．Some parents may even ask their children to stay away from their good friends. | | C．Some parents may even not let their children meet their good friends. | | D．Some parents may want their children to stop to meet their good friends. |
小题3:Which of the following sentences is TRUE?| A．Parents should like everything their children enjoy. | | B．In all families, children can choose everything they like. | | C．Parents should try their best to understand their children better. | | D．Teenagers can only go to their friends for help. |
小题4:The main idea of this passage is that ___________.| A．Teenagers need friends | | B．Friends can give good advice | | C．Parents often choose their children’s friends for them | | D．Good friends can communicate with each other |
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Animals Can Sense Natural Disasters
Among the dead in South Asia’ s tsunami（海啸）were many tourists at Sri Lanka’ s national wildlife park at Yala. But very few of the park’s animals — elephants, buffaloes, monkeys and wild cats — appear to have died. There are theories that animals can sense natural disasters and run away to safety.
First, it’s possible that the animals may have heard the quake before the tsunami hit. The underwater burst produced sound waves known as infrasound（次声）. Humans can’t hear infrasound, but many animals including dogs, elephants, tigers and pigeons can.
A second early warning sign the animals might have sensed is ground vibration（震动）. The great quake would have produced vibrational waves known as Rayleigh waves. These vibrations move through the ground like waves moving on the surface of the ocean but faster. They travel at ten times the speed of sound. The Rayleigh waves would have reached Sri Lanka hours before the water hit. Mammals, birds, insects and spiders can sense Rayleigh waves. So the animals at Yala might have felt the Rayleigh waves and then run to higher ground.
But what about humans? While we can’t hear infrasound, we can feel it, although we don’t necessarily know we’re feeling it. We also experience Rayleigh waves by special sensors in our joints（关节）, which exist just for that purpose. Sadly, it seems we don’t pay attention to the information when we get it. Maybe we screen it out because there’s so much going on before our eyes and in our ears.
小题1:Why did few animals at Yala die when the tsunamis that caused a huge number of human deaths hit?| A．Because human beings cannot hear the infrasonic sound. | | B．Because the animals were staying at a higher place in the park. | | C．Because the animals were able to run much faster than human beings. | | D．Because the animals might have picked up the danger signals and ran away. |
小题2:Which of the statements about “Rayleigh waves” is true?| A．Rayleigh waves can be felt both by animals and human beings. | | B．Rayleigh waves, just like infrasonic sound, can only be felt by animals. | | C．Rayleigh waves are vibrational waves that usually cause quakes or tsunamis. | | D．Rayleigh waves move on the ocean surface at a speed ten times that of sound waves. |
小题3:According to the passage, which of the statement is true?| A．We can’t feel the infrasound so we can’t be informed of the danger. | | B．We ignore the information of tsunami’s coming even though we can also get it. | | C．We were so busy on our minds that we feel neither infrasound nor Rayleigh waves. | | D．We can feel Rayleigh waves and infrasound so we can escape the danger like animals. |
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Many of the world’s pollution problems have been caused by the crowding of large groups of people into the cities. Supply for the needs of the people leads to further 1 by industry. If the rapid increase of world 2 continues at the present rate, there may be much greater 3 to human beings. Some scientists 4 of the increase in numbers of people as “population pollution（人口公害）”.
About 2, 000 years ago, the world population was about 250 million. It 5 a billion in 1850. By 1930 the population was two billion. It is now six billion. It is 6 to double by the year 2020. If the population 7 to grow at the same rate, there will be 25 billion people in the 8 a hundred years from now.
Man has been 9 the earth’s resources more and more 10 over the past years. Some of them are almost gone. Now many people believe that man’s 11 problem is how to control the 12 of the population. The material supplies in the world will be far from enough to 13 the human population if the present rate of increase continues. There is already over-crowding（过分拥挤）in many cities and 14 in some countries. Many people believe that human survival（生存） in the future 15 on the answer to the question.
| 小题1: | | A．progress | B．pollution | C．education | D．production |
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| 小题2: | | A．agriculture | B．industry | C．environment | D．population |
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| 小题3: | | A．danger | B．harm | C．benefit | D．hardship |
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| 小题4: | | A．dream | B．approve | C．rid | D．speak |
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| 小题5: | | A．got | B．took | C．brought | D．reached |
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| 小题6: | | A．suggested | B．hoped | C．expected | D．said |
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| 小题7: | | A．continues | B．fails | C．tries | D．means |
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| 小题8: | | A．world | B．country | C．star | D．end |
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| 小题9: | | A．discovering | B．using | C．digging | D．destroying |
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| 小题10: | | A．seriously | B．dangerously | C．rapidly | D．steadily |
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| 小题11: | | A．greatest | B．easiest | C．lightest | D．simplest |
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| 小题12: | | A．existence | B．start | C．growth | D．birth |
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| 小题13: | | A．increase | B．decrease | C．report | D．support |
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| 小题14: | | A．discussion | B．starvation | C．construction | D．argument |
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| 小题15: | | A．depends | B．agrees | C．saves | D．passes |
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