题目内容
_______ warm at night, I would fill the woodstove, then set my alarm clock for midnight so I could refill it.
A. Staying B. Stayed C. To stay D. Stay
C
People who are outdoors in cold weather should avoid actions like suddenly lifting a heavy basket full of snow. Even walking through heavy, wet snow can strain a person’s heart.
Many people aren’t conditioned to the physical stress of outdoor activities and don’t know the dangers of being outdoors in cold weather. Those who like winter sports can suffer accidental hypothermia if they don’t make certain preparations.
Hypothermia means the body temperature has fallen below normal. It occurs when your body can’t produce enough energy to keep the internal (内部的) body temperature warm enough. It can kill you. Heart failure causes most deaths in hypothermia.
Children, the elderly and those with heart disease are at special risk. As people age, their ability to keep a normal internal body temperature often decreases. Elderly people can suffer hypothermia without knowing they’re in danger because they can’t notice the cold conditions as quickly as the young.
Besides cold temperatures, high winds, snow and rain can also steal body heat. Wind is especially dangerous because it removes the layer of heated air from around your body. At 30 degrees Fahrenheit in a 20-mile-per-hour wind, the cooling effect is equal to calm air at four degrees. Similarly dampness (湿气) causes the body to lose heat faster than it would at the same temperature in drier conditions.
To keep warm, wear more clothes. This traps air between layers. Also, wear a hat or head scarf. Much of your body’s heat can be lost through your head. Keep your hands and feet warm, too, as they tend to lose heat rapidly.
Don’t drink alcohol before going outdoors or when outside. Alcohol makes you feel warm at first because blood vessels in the skin expand. But heat is then drawn away from the body’s important organs.
【小题1】The underlined word “strain” in Paragraph 1 means ________.
A.injure | B.warm | C.control | D.burn |
A.It means the body temperature falls rapidly. | B.Most heart attacks are caused by it. |
C.It is not as scary as people think. | D.It can threaten a person’s life. |
A.they like exercising outside in cold mornings |
B.they can’t notice cold conditions if they are not told |
C.their body temperature is generally lower than young people’s |
D.their ability to keep a normal internal body temperature is not so good |
A.What causes the body to lose heat faster. | B.The advantages of drier conditions. |
C.What else can steal body heat. | D.Dangers of high winds. |
A.Feeling warm at first | B.The body’s heat is taken away |
C.Blood vessels in the skin expand | D.The risk of hypothermia is reduced |
There are many special hotels around the world. In Greenland, there is a hotel made out of ice. In Turkey, there is a cave hotel. And in Bolivia, there is the Salt Palace Hotel.
Thousands of years ago, the area around the Salt Palace Hotel was a large lake. But over time, all the water disappeared. Today, the area has only two small lakes and two salt deserts.
In the early 1990s, a man named Juan Quesada built the hotel. He cut big blocks of salt from the desert and used the blocks to build it. Everything in the hotel is made out of salt: the walls, the roof, the tables, the chairs and the beds.
The sun heats the walls and roof during the day. So the rooms stay warm at night, though it’s cold outside in the desert. The hotel has twelve rooms. A single room costs $40 a night, and a double room $60.
A sign on the hotel’s wall tells guests, “Please don’t lick (舔) the walls.”
【小题1】Where did the salt for the hotel come from?
A.A cave. | B.The lake. | C.The salt desert. | D.A salt field. |
A.The water in the lake. | B.The sand in the desert. |
C.The furniture in the rooms. | D.The heat from the walls and roof. |
A.A large lake. | B.A special hotel. | C.A beautiful wall. | D.A famous desert. |