题目
题型：不详难度：来源：
Experts advise long distance runners to replace the liquids they sweat out. Their goal is to try to keep someone from not getting dehydrated by more than 2 percent of their body weight.
One technique for deciding how much water you need is to get the exact numbers. Runners have to weight themselves before and after a run to determine how much water they’ve lost. If their weight drops by more than 2 percent, they have not drunk enough water.
Hyponatremia occurs when runners drink so much water that blood salt levels drop off. A study published last year tested 488 runners who completed the Boston Marathon and found 13 percent of them had dangerously low blood salt levels. The first sign that runners may notice is slightly swelling in the hands. They can’t get their rings off, and then they might feel sick. They may not remember where they are. In fact, most runners get enough salt to get back to normal levels by eating just one meal after a run. Contrary to the old advice that runners should drink as much as they can to prevent dehydration , the new research has shown that the body is a remarkable machine that actually tells you via thirst when you need water .
56.小题1: The author of this passage is primarily concerned with .
| A．the signs and treatment for dehydration |
| B．the long distance runners who need help |
| C．how to manage water intake during a marathon |
| D．a 28-year-old woman who died after a Boston Marathon |
| A．They can improve their performance in a run. |
| B．They can learn how much salt there is in the blood. |
| C．They can know the quantity of water they’ve lost during a run. |
| D．They can decide what kind of water they should take during a run. |
| A．Taking much salt during a run can avoid selling in the body. |
| B．Either too much or too little of water intake is harmful. |
| C．A rich meal is helpful to our performance in a run. |
| D．We should take enough salt during a run. |
| A．Too much water intake→blood sodium levels ↓→dehydration. |
| B．Too much water intake→blood salt levels ↓→hyponatremia . |
| C．No water intake→blood sodium levels↑→hyponatremia . |
| D．No water intake →blood salt levels ↓→hyponatrenmia . |
答案
小题1:C
小题2:C
小题3:B
小题4:B
解析
核心考点
试题【If you’re training for a marathon , a proper plan for water intake (摄入) is impor】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
cases. The two sentences above are opposite and seem to be unreasonable but they can be explained as follows: the first refers to all good friends who drive us towards good while the second all bad ones who lead us to wrong ways.My ideal friend is of course a good friend whose goodness is shown below---he has no bad likings, such as smoking and drinking. He lives in frugality (节俭). He studies hard so as not to waste his golden time. At home he honors his parents and loves his brothers; at school he respects his teachers and shares feelings with his classmates. He treats those truly who are true to him. In a word, he has all the good characters better than mine. I can follow him as a model. With his help I am free from all difficulties.
Indeed, if I have such a person as my friend, I shall never fear difficulty and I shall never know the existence of the word "failure".
小题1:This passage tells us ( )
| A．how to make friends with others |
| B．how the writer" s friend helps him |
| C．what kind of person the writer"s friend is |
| D．what kind of person we should make friends with |
| A．a true friend | B．a false friend | C．an imaginary friend | D．an excellent friend |
| A．the writer and his ideal friend have a lot to learn from each other |
| B．the writer has a lot to learn from his ideal friend |
| C．the writer"s ideal friend has a lot to learn from him |
| D．the writer has only a little to learn from his ideal friend |
| A．nothing cannot be done with friend | |
B．only the first sentence is reasonable | C．he who does not smoke or drink must be a good friend |
| D．good friends should always help each other |
What are some of the advantages（优势）of shopping and eating underground? Clean air is one of them. The city of Tokyo has one of the most serious smog problems in the world. Another advantage is that you escape the ever-present threat（威胁）of traffic accidents on the city’s busy streets. Still another is the convenience（便利）of getting around: you are usually right next to, or even in, a subway station. And you can even spend the night underground if you like. The Kibosh station, for example, in downtown Tokyo, has a hotel with a bar, restaurant, and barbershop.
小题1:The reason why buildings can not be very high in Tokyo is ____.
| A．that the information about high buildings is limited in Tokyo |
| B．that the workers haven’t mastered enough modern science and technology |
| C．the earthquake |
| D．the heavy traffic |
| A．go up sharply | B．be as high as that of a rocket |
| C．fall rapidly | D．be as low as that of a rocket |
| A．15 | B．50 | C．More than 15 | D．More than 50 |
| A．Less air pollution, the convenience of shopping. |
| B．Less air pollution, the convenience of shopping, and less traffic accidents. |
| C．Clean air and the convenience of getting around. |
| D．Clean air, less accidents’ threat, and the convenience of getting around. |
| A．the capital of Japan |
| B．the land and its limits |
| C．the use of space underground in Tokyo |
| D．how to make full use of the land |
It is the British Museum. Being one of the largest museums in the world, it is home to over 7 million objects from all the world’s continents. While most of us may not have the opportunity to visit London, we can catch a glimpse of the treasures it holds in Beijing. More than 100 cultural relics will be on display in the Palace Museum. Named “Britain and the World”, a range of pencil sketches (素描), watercolor paintings, sculptures and many other objects have traveled to China.
There will be several Chinese objects on show. But “they were obtained by the British Museum before 1830 mainly by trade,” said Ma Jige, deputy director of the Exhibition Department of the Palace Museum.
In fact, there are more than 23,000 Chinese relics in the British Museum, including national treasures like gems (宝石), artwork and ancient bronze ware objects.
The museum is famed for its exquisite Chinese paintings. Picture of Lady Officials (《女史箴图》) by Gu Kaizhi, a top painter of the Eastern Jin Dynasty (AD 317-420), is there. The British Museum also holds 13,700 Buddhist records from the Dunhuang Grottoes in Gansu Province.
小题1: From the passage we can learn that ________.
| A．the British Museum will be moved to Beijing |
| B．pictures of some objects belonging to the British Museum will be taken to Beijing |
| C．pictures of the British Museum will be on show in Beijing |
| D．some objects of the British Museum will be on show in Beijing |
| A．stolen | B．bought | C．borrowed | D．robbed |
| A．About 100. | B．About 1,830. | C．About 13,700. | D． Over 23,000. |
Some mammals migrate（迁徒）. One of these is the caribou（驯鹿）. They travel to the tundra（苔原）every summer to eat the rich grasses that grow there. When the weather becomes cooler, they migrate to the warmer forests and spend the winter there. Another mammal that migrates is the humpback whale. They spend the winter in Hawaii, and the summer in the Arctic（北极的）waters. They travel to the Arctic to eat millions of small shrimp（虾）.Anther habit that some animals have to survive the cold winter is called hibernation. Animals that hibernate, rest or sleep during the winter. While they are hibernating, their bodies use up the fat layer that they have put on by eating large amounts of food during the summer. Some animals that hibernate in the Arctic are small animals called lemmings（旅鼠）, squirrels（松鼠）and bears.
There are two habit adaptations that animals in the Arctic have all year round. These are called herding and pack life. Caribou are example of animals that live in herds. A herd is a group of animals that lives together for most, or all of their lives. A herd of caribou can have a thousand or more animals in it. They live in herds for protection. It is easier for caribou to protect themselves when they are together than it is when they are alone. This is because the meat-eaters hunt in packs.
A pack is a small group of animals that lives together. It is usually controlled by a head male and a female. All the members of the pack must obey them. Packs have a very definite social structure. Each animal in a pack has a different position, or importance. Animals in a pack are usually meat-eaters. They live together for protection and hunting purposes.
小题1:According to the first paragraph, the humpback whale .
| A．travels to the Arctic for shrimp in summer |
| B．spends the winter in the Arctic |
| C．lives in Hawaii in summer |
| D．has the same living habits as the caribou |
| A．The caribou. | B．The bear. | C．The squirrel. | D．The lemming. |
| A．use up their fat layer | B．find food | C．protect themselves | D．hunt in packs |
| A．Animals in pack are usually grain-eaters. |
| B．All animals are in an equal position in a pack. |
| C．It is either controlled by a head mate or by a female. |
| D．Each animal has its own different role in a pack. |
Children with hearing impairments（损伤）suffer most from noisy classrooms. They sometimes can’t hear questions that other students ask in class. Compared with kids with healthy hearing, they have a harder time picking up new vocabulary words by hearing them in talking.
Even kids with normal hearing have a harder time in the classroom when there’s too much noise. Younger children in particular have trouble separating important sounds – like a teacher’s voice – from background noise. Kids with learning disabilities and speech impediments（障碍）and kids for whom English is a second language also have a harder time learning in noisy situations.
In recent years, scientists who study sound have been asking schools to reduce background noise, which may include loud air-conditioners and pipes. They’re also targeting outdoor noises, such as highway traffic. Noise reduction is a big deal. Why? Because quieter classrooms might make you smarter by letting you hear your lessons better.
“It’s so obvious that we should have quiet rooms that allow for access to the lesson,” says Dan Ostergren, a hearing scientist. “Sometimes it surprises me that we spend so much time discussing this topic. I just want to go. Why is this hard for anyone to grasp?”
小题1: The underlined part “goofing off” in the first paragraph can be replaced by “ ”.
| A．lazy | B．intelligent | C．sleepy | D．foolish |
| A．Children with learning disabilities. | B．Children with hearing impairments. |
| C．Children with speech impediments. | D．Children with normal hearing. |
| A．Quiet classrooms are suitable for kids to have discussions. |
| B．Quiet classrooms help kids recover from hearing impairments. |
| C．Kids can become smarter after hearing lessons better. |
| D．Kids can’t separate sounds of air-conditioners and pipes. |
| A．Noisy classrooms | B．Classroom design |
| C．The sense of hearing | D．Disabled kids |
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