As the weather gets warmer, there are few things that are better to do than travel. But traveling might not be that fun for those who have motion sickness (晕动症).
Motion sickness is also called travel sickness. It is a common experience for many people. Depending on how you travel, it can be called carsickness or seasickness. People with motion sickness feel very uncomfortable while they are in motion. They feel sick and dizzy (眩晕的), like the room around them won’t stop spinning.
It is generally believed that motion sickness happens when your senses become mixed up with each other, Scientific American reported. We use different parts of our body to sense movement. Our eyes tell us if we are moving. The inner ears (内耳) has a special liquid (液体) that helps us sense our direction and balance. Our muscles (肌肉) react to movement. When you move around, these body parts work well together. ________ Your inner ear signals that you’re moving, but your eyes say you’re sitting still because you can’t see that you’re moving. This mismatch gives us motion sickness.
But some people are less sensitive (易受影响的) to motion sickness. This may be because they have certain genes (基因) that prevent mismatching senses.
There are many ways to deal with motion sickness, but scientists believe that the key is to simply try and adapt to it. For example, some astronauts do special exercises that give them mild (轻微的) motion sickness. After a week or two, the astronauts become used to it and no more feel uncomfortable, Sam Puma, a NASA fight doctor, told the BBC.
【小题1】According to the article, it’s not a good experience for ________ to travel.| A．people without money | B．people with motion sickness |
| C．people over 60 | D．people with heart disease |
| A．These senses are discovered while in a moving car. |
| B．Their eyes are sensitive enough to move. |
| C．But when you are in a car or a plane, they get mixed up. |
| D．They will feel sick while moving around. |
| A．Motion sickness happens when your senses work well together. |
| B．Trying to get used to the motion sickness is a way to deal with it. |
| C．The eyes help us sense our direction and balance. |
| D．Astronauts are not sensitive to motion sickness. |
