题目内容
When might you need to give blood for a personality test? The answer is that you need to do so when you ask for a job.
Some people believe that your blood group hides no secrets.It shows the “real you”.And the owners of certain blood groups might be particularly good or bad at a certain task.This is the very reason why you could be asked to offer your blood group before being given a job.
The new idea was carried out first in Japan and now it has been brought over to other parts of the world.One important business company in Japan is quite special about these needs: “For our office members, we must have 30 percent of those with group A and 15 percent with AB, 25 percent with B.”
Do you happen to know that if your own blood group is O, you can get things done and sell the goods well? People with blood group A are thinkers, while those with blood group B are highly creative.And if you have problems, ask the ABs to solve them.So if you visit the Japanese company, you would find the O types out selling goods and A types keeping order in the office.
41.This passage seems to lead you to believe that _______.
A.your blood group could affect your work
B.blood types can never change your life
C.the idea about blood groups has little scientific basis
D.one’s personality will never change through out one’s life
42.People belonging to blood group B might be good at _______.
A.sports and games B.painting and writing
C.doing office work D.smoothing away difficulties
43.From the passage, we know _______.
A.four kinds of blood groups were discovered in
B.people of good blood groups might do their work very well
C.knowing your own blood group can help you get a good job
D.more and more countries have accepted the new idea about blood groups
Have you ever walked outside thinking it was one temperature but quickly discovered it felt colder? That is because of the “wind chill” effect.
Wind chill is how cold people and animals feel when they are outside, not the actual temperature on the thermometer(温度计). It is based on how quickly your body loses heat when it is exposed to wind and cold. When the wind is strong, your body quickly loses heat, making the temperature of your skin drop.
When scientists first started calculating wind chill, they used research conducted in 1945 by explorers to Antarctica who measured how quickly water froze outside.
But water freezes faster than exposed skin, so the wind chill index based on that data wasn’t accurate.
In 2001, the US government began to measure wind chill more precisely by testing how quickly people’s skin froze.
Twelve volunteers were placed in a chilled wind tunnel. Equipment was stuck to their faces to measure the heat flow from their cheeks, forehead, nose and chin while they walked three miles per hour on a treadmill(跑步机).
The experiment revealed how quickly exposed skin can be damaged, particularly unprotected areas like your fingers, toes, the tip of your nose and your ear lobes. In fact, 40 percent of your body heat can be lost through your head! Signs you might have frostbite(冻疮) are when the skin turns white or pale and you lose feeling in that area.
The information collected from the volunteers helped scientists work out the math to compute wind chill. It involves wind speed and air temperature.
If, for example, the temperature outside is zero degrees Fahrenheit and the wind is blowing at 15 miles per hour, the wind chill is calculated at 19 degrees below zero. At that wind chill temperature, exposed skin can freeze in 30 minutes.
You can find a calculation table at www.nws.noaa.gov/om/windchill/index.shtml.
Experts advise in cold weather that you wear loose-fitting, lightweight, warm clothing, worn on top of each other. Air caught between the clothes will keep you warm. The best cold-weather coats have head coverings made of woven material that keep out water. So next time the temperature drops and you want to play outside, listen to your parents when they tell you to wrap up warm!
【小题1】 According to the text, wind chill _______.
A.means how fast exposed skin freezes |
B.doesn’t affect your head as much as other body parts |
C.changes according to the temperature on the thermometer |
D.changes from person to person depending on their health |
A.When his skin turns red and he loses feeling in that area. |
B.When he is running faster and he is losing strength quickly. |
C.When his face is exposed and quickly loses heat even indoors. |
D.When his skin turns pale and he has no feeling in that area. |
A.A person’s body temperature and will speed. |
B.Wind speed and a person’s strength. |
C.Air temperature and wind speed. |
D.The location and air temperature. |
A.It was in 1945 that scientists first began to calculate wind chill. |
B.Compared with water, people’s exposed skin freezes more slowly. |
C.The wind chill index based on Antarctica data is considered a standard. |
D.With the development of technology, many previous researches have been proven wrong. |