Once, a woman went on a trip by plane. She sat next to a lawyer (律师). The lawyer was bored, so he asked the woman if she wanted to play a fun game with him.

The woman didn't want to play at first. Then the lawyer said to her, "If I can't answer your question, l give you 50 dollars. If you can't answer my question, you give me five dollars. "The lawyer thought that he couldn't lose and after some time, the woman said, "Yes."

The lawyer asked first, "How long is it between the earth(地球) and the nearest star?" Without saying a word, the woman gave him five dollars. Then the woman asked, "What goes up a hill with three legs and comes back down the hill with four legs?"

The lawyer didn't know the answer. He thought hard for a long time and even called his friends for help. But they didn't know the answer, either. So he gave the woman 50 dollars.

The woman took the 50 dollars without saying a word, but the lawyer wanted to know the answer. "What is the answer to your question?" he asked.

Without saying a word, the woman gave him five dollars.

Eight years ago, the H7N9 virus(病毒)hit Shanghai, Anhui, Jiangsu, Zhejiang and so on. It seemed that most people who were infected(被感染) with H7N9 had the common flu. Some people suffered(遭受)from a fever or a cough.

Don't be afraid—it's not easy to be infected with the virus. Here is some advice to help you protect(保护) yourself when it comes.

Wash your hands. You need to wash your hands with soap(肥皂) and hot water before you eat. After you use the toilet(厕所), and after you touch(触摸) animals, because your hands may carry viruses.

Cover your nose and mouth. When someone(某人) sneezes(打喷嚏) or coughs, flu viruses can travel as far as one meter through the air, so you'd better stand a proper distance(距离) while talking to someone who has a cold. And always cover your mouth and nose with a piece of paper when you sneeze or cough, and then clean your hands.

Wear a mask(口罩).Some doctors say that masks can stop the flu as much as 80%, but if you don't wash your hands often, it's no use wearing a mask. And it's necessary to wear the mask in the groups of people.

lf we follow the advice above(以上), we can resist the virus effectively(有效地).

As we know, good health is very important. How should we keep healthy? I think we should have a good (eat) habit, have a strong body, live in the clean environment(环境) and keep active. These are very necessary for (we) health. First, we should eat more [fru:t] and vegetables and less(较少的) meat every day, We can't eat too much too little. Drink enough water. ['sekənd],we had better open the windows keep the air fresh. We should keep our (body) clean. Don't throw ['lrtə] around. Third, (exercise) a lot is good for us. It will keep us active the day.

If we try to do that, we will be in good health. So, begin now.

— He learned it by ________________.

— Yes, please.

— He has a bad cold and asks for ________________ leave.

— ________________

Kelly has found some coupons (优惠券) for future use. She is reading them.

Please the book me.