一. 阅读理解
杭州极地海洋公园1. We spend about one-third of our lives asleep. This may sound like a lot of time, but it is not wasted. Our bodies need sleep to stay healthy. Not getting enough sleep can make us sick.
Sleep and our immune(免疫)system
The immune system protects the body from dias and infections(传染). Not getting enough sleep hurts this protective system.
The Mayo Clinic is a rearch hospital in the United States. Its website explains that when we sleep our bodies produce proteins(蛋白质)that support sleep and help us fight infections. They add that infection-fighting antibodies(抗体)are reduced during periods when you don't get enough sleep.
A new study from the University of Washington in the U. S. ems to confirm this. Dr. Natha
niel Watson was the lead writer of the study. Watson says his study shows that the immune system works best when the body gets enough sleep. For the study, Watson and his team studied 11 pairs of twins. This is an important difference from other sleep studies. Other rearch did not study twins. Rearchers found that the twin who slept less had a weaker immune system.
Watson says his study showed for the first time that a long-term lack(缺乏)of sleep shuts down parts of the immune system. He says parts that move white blood cells around the body are influenced. White blood cells fight infections in the body.
Watson's study provides more evidence(证据)that sleep is important to"overall health". And sleep is especially important to immune health.
The rearchers published their findings in the magazine Sleep.
How much sleep is enough?
粉笔作文To stay in good health, experts at the Mayo Clinic say that adults should get 7 to 8 hours 多想对你说
of sleep. Teenagers need 9 to 10 hours. And school-aged children may need more than 10 hours of sleep a night.
Experts say our sleep becomes poor in our 30s. By the time we reach our 50s, the average person has lost 50 percent of their ability to have a restful sleep. The people also have trouble falling asleep and staying asleep through the night. From middle age on, they say the problems only get wor, and they can influence our health.
Signs you may not be getting enough sleep
●You're always hungry or you've gained weight.
●You have trouble making decisions.
●You have trouble remembering things.
●Your skin doesn't look good.
●You are having trouble eing.
( )1. From the first three paragraphs we know that .
A.it is a waste to spend about one-third of our lives asleep郑龙华
B.we'll become riously ill if we don't have enough sleep
C.enough sleep does good to infection-fighting antibodies
D.immune system is protected when people begin to sleep
( )2. From Watson's study, we know .
A.enough sleep helps the immune system work well
B.the study of twins is a kind of common sleep study
走出深闺人结识C.twins need less sleep but have stronger immune system
D.sleeping for a long time is important to immune health
( )3. Which of the following is right according to the passage?
A.People don't need 7 to 8 hours of sleep a night in their fifties.
B.The less you sleep every night, the more weight you'll lo.
C.Teenagers should get more than 10 hours of sleep a night.
D.If your memory gets wor, you may not get enough sleep.
( )4. What will probably be written in the following part?
A.How to improve your sleep B. How important enough sleep is!
C.How amazing if you look good! D. How to avoid trouble of eing
赵胜2. James is a good student and he has lots of friends, but he also has a problem. Some older boys are bullying(欺负)him at school. James is very unhappy and he doesn't know what to do about it. Here are some suggestions to him and other teenagers in this situation.
Don't feel worried. It's not your fault(过错)! Being bullied can make you feel very lonely and angry, but you are not alone. Don't feel that you have to hide the problem. You should find a person you can trust, and tell them. It might be your teacher, your parents, or even your friend's parents. After you tell someone, you will get some support and feel some relief (解脱). 渭河流域
Speaking to an adult might make you nervous, but here are other things you can do. Some people express their feelings more easily on paper. Write a letter to someone or keep a diary. Include all the details about what the bullies (欺人者) do, as well as when and where the bullying happens. You can u it as proof to show what is going on. And it is a wonderful idea to show your letter or diary to a teacher or another responsible adult. Then the bullies will feel very afraid if their names appear in a letter!
Also, don't show you are sad and don't try to fight with the bullies. You could get in trouble yourlf. Ignore them and just walk away. The bullies will soon stop.
( )1.What do you think the text is trying to tell us?
A. What to do about being bullied.
B.How to be a good student at school.
