题型:阅读选择 题类: 难易度:普通
广东省揭阳市揭西县2024-2025学年九年级上学期期中考试英语试题
Do you know cosmic radiation(宇宙辐射)? Have you ever seen the auroras ( 极 光 ) in the sky? Cosmic radiation creates these pretty lights in the North and South Pole areas. It seems that cosmic radiation is a beautiful gift from space. But for some people, it can be dangerous.
A 53-year-old flight attendant(空中乘务员) in South Korea, who spent about 1, 022 hours flying each year, passed away due to cancer. His death was thought to be connected to great exposure (暴露) to cosmic radiation. During his lifetime, nearly half of his flights crossed the areas in and around the North Pole, where cosmic radiation is very strong.
Cosmic radiation from space is hitting Earth nonstop, coming from both the sun and other stars in the sky.
____ . Earth's magnetic field (磁场) and atmosphere (大气层) protect us from most cosmic radiation. The magnetic field is the strongest near the equator and the weakest at the poles. People living at higher latitudes (纬度), like in Heilongjiang province, are exposed to a bit more cosmic radiation than those living at lower latitudes, like in Hainan province. Also, when you go higher in an airplane, the thin atmosphere increases exposure to cosmic radiation.
Cosmic radiation can create health risks. However, what makes cosmic radiation dangerous also makes it useful. The high speed and energy of cosmic radiation have provided wonderful ideas for treating some cancer. Scientists can now produce man-made radiation similar to cosmic radiation. Compared to the present ways of treating cancer, it can work better with less harm to healthy parts of the body around them.
① Wuhan ② Beijing ③ Mohe ④ Sanya
To improve children's health and fitness (健身). Freestyle 360 has some fun fitness classes for children between (在…之间) 9 and 13 years old. We want to help children to do more sports in an easy and relaxing environment.
Kids Karate ( Mondays) Time: 16: 30-17: 30 Teacher: Brett Ukich It is a fun class for children to improve health. Kids will also learn some Japanese. |
Fitness Fun ( Wednesdays) Time: 16: 30-17: 15 Teacher: Lynsey McDonald This class has fun lessons and exercise. It is to help children get stronger. |
Team Games ( Thursdays) Time:17:00-18: 15 Coach: Lorraine Clayton This class teaches children to work as a team. We have fun games, so everyone can have a good time. |
Physical Activity = Better Health By exercising, children will become happier and stronger. Come and join our classes! Price: £ 7.5/ lesson or £ 28/ month ( for all the classes) Tel: 1386-7000 or 7818-0336 Email: info@freestyle360.co.uk Address: Draycott Road, Blockley, GL569DY |
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