题目
题型：不详难度：来源：
Some scientists believe that birds do sing some of the time just because they are happy. However，they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.
Do you know what a ’territory’ is? A territory is an area that an animal，usually the male，claims(声称)as its own. Only he and his family are welcome there. No other families of the same kind are welcome. Your garden and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten(威胁)you，you might shout. Probably this would be enough to frighten him away.
If so，you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time，especially at nesting(筑巢)season. So he is screaming all the time，whether he can see an outsider or not. This screaming is what we call a bird’s song，and it is usually enough to keep an outsider away.
Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs..
You can see that birds have a language of their own. Most of it has to do with attracting mates and setting up territories.
小题1: Some scientists believe that most of the time bird’s singing is actually _______.
| A．away of warning | B．an expression of happiness |
| C．an expression of anger | D．away of greeting |
| A．A place where families of other kinds are not accepted. |
| B．A place where a bird may shut at the top of its voice |
| C．An area for which birds fight against each other. |
| D．An area which a bird considers to be its own. |
| A．Because they want to invite more friends. |
| B．Because they want to find outsiders around. |
| C．Because their singing helps frighten outsiders away. |
| D．Because their singing helps remove their fears. |
| A．By comparing birds with human beings. | B．By reporting experiment results. |
| C．By describing birds’ daily life. | D．By telling a bird’s story. |
答案
小题1:A
小题1:D
小题1:C
小题1:A
解析
小题2:根据A territory is an area……claims(声称)as its own.声称是它自己的，选D，鸟认为是属于它自己的地方。
小题3:根据especially at nesting(筑巢)season.……and it is usually enough to keep an outsider away.这一段可知通过这一手段足可以让外人远离。所以选C，因为他们的歌声有助于吓跑外来者。
小题4:最后一段把鸟类的歌声比作人类的语言，可知选项A,把鸟类同人类进行对比，最符合题意。
核心考点
试题【Have you ever wondered why birds sing? Maybe you thought that they were just hap】；主要考察你对教育文化类等知识点的理解。[详细]
举一反三
When you look at a book，it sends some of the light which fails on it to your eyes，and you see the book．If light could be kept out from where you’re so that there would be no light from the book to reflect．Then you couldn’t see the book even with your eyes wide open．Light travels so fast that the time in which it travels from the book you’re reading to your eyes is as short as if there were no time at time．Light reaches us from the moon，which is about 380，000 kilometres away，in only a little more than a second．
小题1:You can see the book because________．
| A．your eyes are close to it | B．it reflects some of the light |
| C．it has light of its own | D．it is big enough to be seen |
| A．闪光的 | B．看不见的 | C．发光的 | D．明亮的 |
| A．The moon | B．The earth | C．The sun | D．The satellite of Dong Fong Hong |
| A．300，000 | B．100，000 | C．400，000 | D．190，000 |
| A．All the things you can see give off light． |
| B．Light from the book is much faster than that from the moon． |
| C．The moment you open your eyes，the light from the book travels to your eyes． |
| D．Light travels so fast that there is no time for you to read． |
Now Coyote was a trickster(骗子)—and hungry too. He stayed behind Bluebird’s tree for a long time every day and watched her go to the lake. He pretended(伪装) to be interested in everything she did. He wanted Bluebird for lunch, but he was afraid of the blue water. On the third morning, Coyote saw Bluebird come out of the lake with beautiful blue feathers. Impressed, he sat next to Bluebird’s tree and waited for her. When she returned, he asked, “How did you get blue feathers? I want to be blue like the mountains too.” Bluebird didn’t believe Coyote, but she taught him how to bathe three times each morning and how to sing her song. Coyote did what she said, and after three days of bathing in the lake, his white fur turned deep blue.
Convinced(确信的) that blue fur was even more beautiful than blue feathers, Coyote forgot all about being hungry. He ran as fast as he could to the top of the hill. Standing on his back legs, he raised his front legs off the ground and howled. But Coyote slipped(滑倒) and rolled down the hill. He couldn’t stop himself, and the dust and dirt covered his new blue fur. He rolled and rolled until he hit into Bluebird’s tree heavily. No matter how much he tried, foolish Coyote could not shake the dust from his fur. And so the fur of all coyotes had the dull colour of dust to this very day.
小题1:How many times did Bluebird bathe every morning before she had beautiful blue feathers?
| A．Three times. | B．Four times. | C．Five times. | D．Six times. |
| A．He wanted to fly like Bluebird near the mountains. |
| B．He wanted to eat Bluebird but pretended to be curious. |
| C．He wanted to swim in the lake but was afraid of the water. |
| D．He wanted to sing Bluebird’s song but didn’t know the words. |
| A．To the lake. | B．To the tree. | C．To the cave. | D．To the hill. |
| A．Because his fur had the dull colour of dust. |
| B．Because the dust and dirt covered his new blue fur. |
| C．Because he thought blue fur was much more beautiful. |
| D．Because he hit into Bluebird’s tree and hurt himself. |
| A．sky, lake, mountains |
| B．bird, coyote, storm |
| C．flapped, climbed, bathed |
| D．fur, feathers, dust |
Many years ago there was a very good dog. His name was Seeing Eye dog. Now we can see this kind of dogs all over the world. They are working for the blind.
The Seeing Eye dog is strong, good and easy to train(训练). He helps the blind to walk from place to place.
Before a dog becomes a Seeing Eye dog, he must go to a training school for about three months. First the dog has to learn to sit or stay when he hears the trainer’s call. In his next lesson the dog learns to make his trainer across busy streets
The dog has many things to learn. And in every lesson he must learn to do one thing again and again for many times.
At the end of the training school he must take tests. When he passes the tests, the Seeing Eye dog will do the things by himself.
Now he can help blind people. The new master may be a man, a woman, or even a child. It takes the dog and his blind master about a month to learn to work and live together.
小题1:We can see the Seeing Eye dog _______.
| A．only in the country | B．only in small cities |
| C．all over the world | D．only on the busy street |
| A．Look after sheep | B．Help blind people |
| C．Find lost children | D．Train blind people |
| A．go to a training school | B．go to a middle school |
| C．go to an evening school | D．go to a children school |
| A．when he hears the telephone call | B．when he hears another dog’s call |
| C．when he hears the master’s call | D．when he hears the trainer’s call |
| A．one year | B．five years | C．about a month | D．one week |
小题1: There is a big table with ________ on it.
| A．many things | B．three bottles of orange |
| C．two glasses of milk | D．some bread and cakes |
| A．behind the door | B．under the table | C．near the window | D．on the floor |
| A．Mimi | B．Polly | C．Xiao Mi | D．Mary |
| A．Jim and Kate | B．Jim and Mimi | C．Jim and his father | D．Kate and her mother |
| A．The cat is eating bread . | B．Jim is having breakfast. |
| C．Polly is eating a banana. | D．Kate is having lunch. |
There are 1,200 students in 25 classes in our school. The students all like to study. The teachers in our school are very good. They help the students to study and the students like them, too.
小题1:The school looks _____.
| A．small | B．old | C．nice | D．new |
| A．trees and flowers | B．a playground | C．students and teachers | D．desks and chairs |
| A．45 | B．65 | C．75 | D．55 |
| A．their classroom | B．their homes | C．the playground | D．the art room |
| A．Give the students lessons. | B．Play football and table tennis with the students. |
| C．Don’t like some students. | D．Help students to study. |
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