题型：阅读还原 题类： 难易度：普通
In winter and spring, the flu is a kind of serious illness. In fact, it is hard for you to stay away from it. However, there are some ways to cut down the possibility of catching it.
1
According to a study, the immune system(免疫系统) in the body doesn't work well in the cold weather, while viruses(病毒) don't like the warm body. So wearing enough clothes may help keep away from them.
2
Although it's possible for you to keep away from anyone coughing, you're more likely to pick up viruses from something you touch. "Wash hands often. If there is no way to clean hands, try not to touch your eyes or nose," said Dr Walton. "This is a common way for viruses to get into your body."
3
When you're sleeping, your body is able to produce something to fight with viruses. People who sleep for seven to eight hours will have a stronger immune system than those who sleep less. According to Dr Walton, if you can't get enough sleep during the night, a 30-minute daytime nap is enough to make up for the bad effect of the poor nighttime sleep on the immune system.
4
Taking enough exercise can keep the immune system work better. However, doing too much exercise may bring some bad results. For example, you may catch viruses more easily.
5
To keep away from the flu, having flu jabs(预防针) is necessary and important. "It's true that the jab can't protect us against all kinds of flu, but it can save lives. I certainly have one every year,"says Dr Walton.
A. Get the flu jab in time B. Take control of the body C. Do enough exercise to keep strong D. Keep your hands clean at any time E. Put on enough clothes to keep warm F. Have enough sleep every day |
A. These computers are smart! B. They are also welcomed abroad. C. In this way, space travel will be much cheaper. D. With them, travelling across countries can be far quicker. E. But they may require changes in air traffic control system. F. These imaginary machines might not be too far from daily life. |
Humans are no stranger to taking on technological challenges. Hollywood movies have imagined a future of hoverboards(悬浮滑板) and flying cars. {#blank#}1{#/blank#} What's new and popular today? Let's take a look.
The Robotaxi
In a Robotaxi, no one drives, it drives by itself. You just tell where and it goes. It's like a magic ride, but a car! It watches the road with computers and cameras. {#blank#}2{#/blank#} They can reduce the number of cars on city streets by 60% and road accidents by 90%.
The Flying Cars
Flying cars include passenger drones(无人机) and helicopter hybrids(混动). {#blank#}3{#/blank#} Because the sky will never be as busy as the roads are. It may take you 30 minutes instead of 2 hours to go to a friend's house. Besides, it only costs around 60 dollars, and you get to fly. Isn't it cool?
The High-speed Trains
China is leading the world in high-speed trains. The latest type of trains can run at the top speed of 450 kilometers per hour. It has set a world record for the fastest train speed. The high-speed trains make the travel safer, greener and more comfortable. {#blank#}4{#/blank#} In recent years, these trains have been sold to 23 countries.
The Starship Rockets
SpaceX company's new rocket, Starship has completed its first flight. SpaceX engineers take this task as a great success. After a rocket finishes its job, it usually falls and breaks. But the Starship rockets don't break. By reusing the most expensive part of the rocket, it reduces the cost a lot. {#blank#}5{#/blank#}
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