Each October 15, over 200 million people around the world take part in Global Handwashing Day. Research shows that not enough people wash their hands with soap. Experts believe that this leads to the deaths of millions of people every year.

Myriam Sidibe says that soap is “the most beautiful invention in public health”. He knows that washing hands with soap can have a big influence on reducing flu（流感）and other diseases. It can also prevent babies from getting sick and keep children healthy.

However, washing hands with soap doesn’t appear as fast as you might think. This may happen in poorer countries, but it’s also because for many people, washing hands with soap is simply not part of their everyday work. This is what Global Handwashing Day tries to do.

In 2008, the first Global Handwashing Day began. Every year since then, the campaign（运动）has held many different events around the world. In 2014, Global Handwashing Day was used in the fight against Ebola（埃博拉病毒）.

Today, local and national leaders continue to use the day to spread the message about the value of clean hands. The hope is that handwashing can become a necessary part of people’s lives and make a big difference to the health of millions around the world.

Mary is reading something on the Internet about how to keep healthy.

【小题1】 You need about eight hours’ sleep every night. Don’t eat or read in bed. A cup of milk before sleeping may help you get a good sleep. 【小题2】 For more information, please visit www. sleeping. com.

【小题3】 If you want to stay healthy, try to exercise for 30 minutes a day, three or four times a week. For more information, please call Health Line at 180-2000.

Studies show that the cold or the flu virus (流感病毒) can live on our hands for long. 【小题4】 If you want to know more, please call Health Line at 180-1313.

【小题5】 The oral examination (口腔检查) is not only for the health of teeth, but also for the whole body. Please visit www. mydr. com for more information.

The music is on. The figure skater glidesjumps and spins（旋转）. One turn, two turns, three turns-it seems figure skaters never get dizzy（眩晕的）no matter how many times they spin. 【小题1】

We often feel dizzy and lose balance after spinning around. 【小题2】 They reach their limit（极限）before our head finishes a full turn, so they turn back to a new starting point. When our eyes repeat this, we get dizzy.

Figure skaters don’t have any super power. They get dizzy, too. 【小题3】 As they train more, their brains get used to the feeling.

【小题4】 Figure skaters learn “opposing（反向）eye movement” during their training. It’s like the eye movement we have when we watch a moving train pass in front of us while our heads stay still. Skaters can train themselves to have this eye movement when they spin. This can make them feel less dizzy.

Keeping a uniform speed（匀速）is also helpful. We feel dizzier when our brain feels changes in speed. 【小题5】 Some skaters will make a dance movement at the end of a long spin. This provides a little break while the dizziness passes.