初中英语选词填空专项练习

知识像烛光，能照亮一个人，也能照亮无数的人。--培根 1 / 6 初中英语选词填空专项练习 A health suggest risk fish stop which run at do little During the novel coronavirus outbreak, you might still want to take a walk or run to stay fit. How do you stay safe while exercising? The British health department (部门) has given some 1_______. People should keep a distance (距离) of 1.8 meters from others 2______ the spread of mucus droplets (唾液飞沫) that carry the virus. 3_____ this distance, the droplets will fall to the ground before they can touch other people. But according to a new study, more must 4_____. If you’re running with another person, you should run side-by-side. This also reduces (降低) the 5______ of infection (传染). Researchers in Belgium simulated (模拟) a situation in 6______ two people were walking or running together. When one person coughed or sneezed (打喷嚏) while running in front of the other, his or her droplets would hit the person 7_____ behind. But when they ran side-by-side, the droplets would be left behind, making them 8________ likely to spread the virus. Tips to improve your immune system Increase (提升) your vitamin D levels. Research shows that the immune system (免疫系统) needs vitamin D to fight off viruses. You can get vitamin D through sunlight and some foods, including 9_______, eggs, cheese, and mushrooms. Get enough sleep. Most people need seven to nine hours each night. Just one night of poor sleep can reduce your immune cell count (总数) by as much as 70 percent. Exercise often. This will keep your body 10_______ and strong. Even at home, you can do exercises like push-ups (俯卧撑) and lunges (箭步蹲) to stay healthy. B same certain that show at good...