【文章內(nèi)容簡介】 re B. stay in the classroom and close the door C. get to the fire escape through a fire exit door or a window D. push others to go out quickly 43. What do Australian students learn in their firstaid class? A. How to stay safe during an earthquake. B. How to call an ambulance. C. How to stay safe when they play soccer. D. How to escape from a fire. 44. Which of the following is TRUE according to the passage? A. In Japan, earthquake drills are held once a term at elementary schools. B. Only a few students in Australia can learn basic firstaid knowledge in the class. C. Regular earthquake training can help keep students safe during an earthquake. D. It’s a good idea to jump out of a window from the third floor to escape from the 7 fire. 45. The passage is mainly talking about . A. what the danger is B. earthquake drills C. firstaid knowledge D. different ways to keep students safe C As the weather gets warmer, there are few things that are better to do than travel. But traveling might not be that fun for everyone, especially for those who have motion sickness (暈動癥 ). Motion sickness is also called travel sickness. It is a mon experience for many people. Depending on how you travel, it can be called carsickness or seasickness. People with motion sickness feel very unfortable while they are in motion (在移動中 ). They feel sick and dizzy, like the room around them won’t stop spinning. It is generally believed that motion sickness happens when your senses bee confused 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 (內(nèi)耳 ) contain a special liquid (液體 ) 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. But when you are in a car or an airplane, they get confused. 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 to motion sickness. This may be because they have certain genes (基因 ) that prevent mismatching senses, Bethann Hromatka, a geics expert from the US, told the Atlantic. Although there are many ways to deal with motion sickness, scientists believe that the key is to simply try to adapt to it. For example, some astronauts do special exercises that give them mild (輕微的 ) motion sickness. After a week or two, the astronauts bee used to it and don’t feel unfortable anymor e, Sam Puma, a NASA flight doctor, told the BBC. 46. What do we know about motion sickness? 8 A. It is called carsickness when you travel by car. B. It happens to only a small number of people. C. It can make traveling more fun. D. It causes the room to spin continuously. 47. What does the underlined word “dizzy” mean in Chinese? B. 眩暈的 C. 嘔吐的 D. 疼痛的 48. Why do some people have motion sickness? A. Because their senses stop working. B. Because they lose their sense of direction. C. Because their eyes can’t see properly. D. Because there is a mismatch among their senses. 49. The astronauts are mentioned to show that _____. A. it is impossible for others to deal with motion sickness B. astronauts can easily adapt to motion sickness C. special exercises can help deal with motion sickness D. motion sickness has something to do with genes. D In 1974, farmers in Xi’an, Shanxi, were digging wells. But to their surprise, they dug out an amazing discovery only five meters under the earth: the worldfamous Terracotta Warriors(兵馬俑） . The Terracotta Warriors are thousands of clay soldiers. . The most