题目
题型：不详难度：来源：
The ears and brain have an Amazing amities to recognize（识别）particular sounds. For example, a mother often can tell when her baby is crying even if there are other crying babies in the same room. This is because the sound of her baby’s cry has special meaning to her and the brain has recorded is importance.
The ability to recognize sounds improves with experiences. As the brain receives information about sounds from day to day, it stores the information in its memory. When the brain hears new sounds, it gives meaning to them based on the information already in the memory. This is why certain words or songs can make a person happy. Often it is not the words or songs themselves that cause this feeling. The sounds are connected to happy memories for that person.
After hearing process controlled by the brain is to decide where a sound is coming from. One ear is usually closer to the source (来源) of a sound than the other ear is. Sound waves are stronger when they reach the ear that is closer. They also reach the closer ear first. The brain recognizes these differences and uses them to decide the location of the source of the sound.
小题1:Which of the following shows the normal hearing process of a mother hearing her baby crying?
a. The ears receive the sound waves.
b. The mother recognizes her baby’s cry.
c. The ears turn the sound waves into signals.
d. The baby’s cry ravels in the form of sound waves
e. The brain connects the signals to the information in me memory.
| A．d-a-c-b-e | B．d-a-c-e-b | C．a-d-c-b-e | D．a-d-c-e-b |
| A．lifestyle | B．personality | C．experiences | D．hobbies |
| A．where the source of a sound is | B．how loud a sound is |
| C．when a sound starts to appear | D．what makes a sound |
| A．Human Brain’s Amazing Facts |
| B．Human Hearing Characteristics |
| C．How to improve Hearing |
| D．How Do Humans Hear |
答案
小题1:B
小题2:C
小题3:A
小题4:D
解析
小题1:根据短文一三段描述,可知母亲只听到婴儿的哭声,首先要满足声音以声波的形式传播,然后耳朵接收到这种声波,然后耳朵把这些声波转换成信号,大脑把这些信号同记忆中的信息联系起来,最后母亲辨别出婴儿的哭声.故选B..
小题2:根据第三段This is why certain words or songs can make a person happy. Often it is not the words or songs themselves that cause this feeling. The sounds are connected to happy memories for that person.描述,可知与人们的经验有关.故选C.
小题3:根据最后一段描述,可知两只耳朵通过距离声源的远近来辨别声音发出的方向,所以当一只耳朵失去听力之后,他无法辨别声音发出的方向.故选A.
小题4:这篇短文中作者主要分析了耳朵是如何听到声音的科学道理.故选D.
核心考点
试题【Everything that humans hear is in the form of waves (波).Just as the eye sees lig】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Actually, there is nothing wrong with your eyes. This twinkling effect is called scintillation (交光). Scintillation happens because of air movements in the earth’s atmosphere (大气). Light is “bent (弯曲的)” when it travels through different parts of the earth’s atmosphere. As the air in the earth’s atmosphere is moving all the time, the light from the stars looks as if it is moving too.
The same thing also happens to things on the ground. On a very hot and shiny day, if you look at the road, the image in the distance is not clear and things move slightly. You can also see the same effect if you drop a rock into water. The rock appears a little unclear under the moving water.
This twinkling effect causes a lot of problems for astronomers (天文学家) since they cannot observe the stars clearly. A telescope (望远镜) was sent into space so that the air movements in the atmosphere could be avoided (避免). It took a long time to build the space telescope but finally in 1990, a huge space telescope called the Hubble Space Telescope was successfully sent into space. Since then, astronomers have many important observations that have helped people understand space better.
根据短文内容，选择最佳选项。 （10分）
小题1:What happens to the light from the stars we see when the air in the earth’s atmosphere is moving?
| A．It looks even brighter. |
| B．It looks as if it is bent. |
| C．It looks as if it is moving. |
| D．It looks like drops of rain. |
| A．rainy days | B．shiny days |
| C．cloudy days | D．windy days |
| A．The rock gets broken. |
| B．The rock becomes unclear. |
| C．The water becomes much polluted. |
| D．The water does not move anymore. |
| A．watch | B．listen | C．draw | D．explain |
| A．The stars never stay still. |
| B．It makes the stars too dark to see. |
| C．It makes astronomers feel too hot to work. |
| D．Astronomers cannot observe the stars clearly. |
Should we be afraid of sharks? Maybe not. New research into the reasons for shark attacks (攻击) suggests that sharks don’t like the way humans taste! In fact, most people who are attacked by the shark are still alive after receiving only one bite (咬). Why is this?
There are many opinions to explain why sharks sometimes attack people. One opinion is that sharks are just curious (好奇的). We know that sharks are the strongest animals in their environment, so they are not afraid of anything. Naturally, that means they are curious when they meet something unusual. Because they don’t have hands or feet., the only way they can find out an object is to bite it! It is thought that sharks sometimes bite humans for this reason, and then swim away.
Scientists also say that sharks would not waste energy trying to eat a human, as we have a lot of bones (骨头). It is hard for a shark to eat us because sharks don’t have hands, and they can’t pull the meat off our bones. Maybe that’s why they only bite us once. Unluckily, one bite from a large shark is serious enough to hurt people greatly!
Another opinion is that sharks attack humans by mistake. Some sharks may sometimes mistake humans for a seal. An example of this is when a shark attack attacks a surfer. A surfer lying on a surfboard looks like a seal when seen from below. Sharks like seals because they have thick fat.
Whatever the reason for shark attacks on humans, sharks should be afraid of us. Sadly, we kill almost 40 million of them each year.
小题1:What happens to people attacked by sharks?
| A．Most of them because blind. | B．Most of them because of deaf. |
| C．Most of them died. | D．Most of them are still alive. |
| A．By biting. | B．By smelling. |
| C．By touching. | D．By killing. |
| A．Sharks pull meat off bones when they eat. |
| B．Sharks might mistake humans for seals. |
| C．Sharks like to attack surfers because of their thick fat. |
| D．One bite from a shark is nothing serious. |
| A．To tell surfers to stay away from sharks. |
| B．To ask people to stop killing sharks. |
| C．To let us know the reasons for shark attacks on people. |
| D．To show that humans are much stronger than sharks. |
“Eat breakfast like a king, lunch like a prince and dinner like a pauper(穷人).” 37 the old saying tells us, breakfast is the most important meal of the day. It 38 us with energy after a long night without food.
If people don’t have breakfast in the morning, they will feel tired and get angry easily. Breakfast helps children stay more focused in school. A study showed that children who eat breakfast regularly score 39 in most subjects.
Breakfast is also important for weight loss. If you have a balanced breakfast, you will eat
40 throughout the day.
A healthy and 41 breakfast should include some protein(蛋白质) like eggs, milk or a little meat, which makes you energetic all day.
Carbohydrates(碳水化合物)like rice or bread can keep you active. Vegetables and fruit
42 the vitamins that humans need.
43 ,in China, breakfast is different from region to region. Porridge with pickles(咸菜),baozi, noodles, soybean milk and youtiao are common throughout the 44 country. Although Western culture has influenced China a lot, most people still 45 traditional Chinese breakfast. They think that porridge and noodles are not only easily digested(消化), but also can provide enough energy in the morning.
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Some people may think that a person should spend the best years of his life to get education only for a way of living. This was probably one of the earliest reasons of education. In fact, if education is just a way of making a living, people don’t need to spend so much time in school. People can get education for a living in a short time. Subjects like history and geography need not be taught to everyone. Even language and mathematics need not be taught in detail(详细地), either. Here it is clear that education is much more than teaching a man to get a way of living.
Education is well-rounded and it is mainly for improving a man. It is not only to teach him to speak, read and write, but also to develop his creative thinking and other abilities. After that, it is to make him a wise man and thankfully enjoy the achievements of human. Education is to make a man lead a better life. Educated people are expected to be able to listen to good music, read good books, watch plays and most of all take an interest in the world.
I would agree that making a good living is an important reason for education, but certainly not the most important or the main reason.
小题1:People with little education usually ____.
| A．spend a long time in school | B．have a good chance to get a job |
| C．spend the best years to choose jobs | D．have fewer chances to get a good job |
| A．make a man lead a better life | B．teach a man to write and think |
| C．make people get a way of living | D．teach people to read good books |
| A．圆满的 | B．崭新的 | C．公平的 | D．全面的 |
| A．accept education as a way of living |
| B．take an interest in the whole world |
| C．develop their abilities to make plays |
| D．learn subjects like language and math |
| A．education should make a man improve |
| B．people can get education in a short time |
| C．people should be able to get better paying jobs |
| D．all subjects are so important for a way of living |
“You have no flying skills at all!” he said to the swans. “All you can do is to move your wings. Can you turn over in the air? No, that’s beyond you. Let’s have a flying competition. I’ll show you what real flying is!”
One of the swans, a strong young male, took up the challenge. The crow flew up and began to show his skills. He flew in circles, performed other flying tricks, and then came down and looked proudly at the swan.
Now it was the swan’s turn. He flew up, and began flying over the sea. The crow flew after him, making all kinds of comments(评价) about his flying. They flew on and on till they couldn’t see the land and there was nothing but water on all sides. The crow was making fewer and fewer comments. He was now so exhausted that he found it hard to stay in the air, and had to struggle to keep himself from falling into the water.
The swan pretended(假装) not to notice, and said, “Why do you keep touching the water, brother? Is that another trick?”
“No,” said the crow. He knew he had lost the competition. “I’m in trouble because of my pride! If you don’t help me, I’ll lose my life…”
The swan took pity on him, and took him on his shoulders and flew back to the beach.
小题1:What’s the correct order of the following events?
a. The crow showed off its flying skills.
b. The swan felt pity for the crow and saved it.
c. The crow laughed at the swan’s flying.
d. The crow followed the swan and got into trouble.
e. The crow challenged the swans and a strong young swan accepted it.
| A．e, c, d, a, b | B．a, e, c, d, b | C．c, e, a, d, b | D．e, a, d, c, b |
| A．Tired. | B．Angry. | C．Frightened. | D．Regretful. |
| A．It was showing another flying skill. |
| B．It was struggling to keep itself from falling into the water. |
| C．It was thirsty and wanted to drink some water. |
| D．It was enjoying itself by doing so. |
| A．The crow didn’t know flying. |
| B．Flying skills were useless. |
| C．The swan saved the crow because they were good friends. |
| D．The swan was better at long-distance flying than the crow. |
| A．No pains, no gains. | B．The early bird catches the worm. |
| C．Pride goes before a fall. | D．Practice makes perfect. |
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