—My flight ________ ten minutes ago. What should I do?
Did you know that 11,000 people die every day from smoking? Did you know that people die every day from breathing smoke1other people's cigarettes?
Tobacco smoke has 43 ingredients that may2cancer. If smokers had learned these3when they were young, they probably would never have started smoking.
Most smokers try4first cigarette when they are teenagers. Often, they start smoking because they think that it makes them look more5. Sometimes they start smoking because their friends tell them that it's cool. If teenagers are told that half of them will die before the age of 65 from smoking cigarettes, how can they still think it's cool to smoke?
One of the biggest problems is cigarette advertisements. Tobacco companies6tell the truth to teenagers about cigarettes. After watching the advertisements on TV or looking at the posters in which people ride horses or play in a rock band, young people often think that smoking7be cool.
Sadly, cigarettes are very difficult to8once a person has started smoking. Most teenagers start smoking9they are influenced by friends or cigarettes advertisements. And often, the teenagers regret the decision to start smoking later in life.
Teenagers need to know10bad cigarettes are for their health. If they are told that cigarettes kill more people than guns do, they probably will never start smoking.
Computers can injure (伤害) you. Most other injuries happen suddenly. For example, if you fall over a bike and break your arms, it happens very1. But computer injuries happen slowly. You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
2light can injure your eyes,3never sit too close to a computer screen. Your eyes should be450 centimeters(厘米)from the screen.5remember to look away from it. This gives your eyes a rest. When you use a computer, the window6be on your left or your right. If it is behind you, the light will reflect on(反射)the screen. If the window is in front of you,7the sun and the screen will shine into your eyes.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time,8these three rules: 1) Rest your wrists on something. 2)Keep your elbows(肘)at the same height as the keyboard. 3) Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel(平行)to the floor. If you are sitting for a long time, get up every 30 minutes and9your arms, legs and neck.10your computer, but use it safely.
A:
B: Oh, I'm not feeling well. I can' do any work, doctor.
A: Don't worry. When did it start?
B: About two days ago.
A: Do you have a cough?
B: No, I don't.
A: No, it doesn't sound like you have a fever. Please say "Ah".
B: Ah…
A: Hmm… I think you will be all right soon.
B:
A: No, you needn't. You should drink more water.
B: Thank you.
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A. Take this medicine three times a day. B. Must I stay in bed? C. You only got a cold. D. What's the matter with you? E. I have a headache, and I feel tired. F. You should see a doctor. G. Should I take my temperature? |
Harry keeps a diary. He writes every day. Here is his diary for a week in June.
Monday June 15th.
It rained all day，so we did not do any sports. We stayed in our classroom and read library books.
Tuesday June 16th.
I missed(错过)the bus and was late for school. It wasn't my fault. The bus was 10minutes early.
Wednesday June 17th.
I had an English test today. I got an A+. It's my best grade ever！I made only one spelling mistake(错误).
Thursday June 18th.
I went swimming with Adam and Steve. Steve is a good swimmer and he taught us a lot. I hope(希望)he will win the school swimming competition next Monday.
Friday June 19th.
I didn't go to school. I caught a cold at the swimming pool. I stayed in bed and slept all day. I felt better in the evening. Mom didn't go to work. She looked after(照顾)me at home.
Saturday June 20th.
I feel much better today，but Mom made me stay at home. I watched TV all day. It was boring.
Sunday June 21st.
I didn't do anything interesting today.
Spending two or three hours playing outdoors each day can reduce the chance of becoming short-sighted, a research shows. It challenges the belief(信念)that short-sightedness is caused by computer use，watching TV or reading in weak light.
The Australian government researchers believe that the sunlight is good for people's eyes. They compared the vision(视力)and habits of 100 seven-year-old children in Singapore and Australia. In all, 30% of the Singaporean children were short-sighted-this rate(比率)was ten times higher than Australian children.
Both groups spend a similar amount of time reading，watching television and playing computer games. However the Singaporean children spent an average of only half an hour a day outdoors-90 minutes less than the Australian children.
Professor Lan Morgan, from the Australian Research Council's vision Centre, said, "Humans are naturally long-sighted, but when people begin to go to school and spend little or no time outdoors, the number of short-sighted people gets larger. We're also seeing more and more short-sighted children in cities all around the world and the main reason may be that city children spend less time outdoors.
Daylight can be hundreds of times brighter than indoor light. But why does playing outside prevent us from becoming short-sighted？Scientists believe that natural light has a special chemical(化学物质)which stops the eyeball from growing out of shape and prevents people from becoming short-sighted.
So be outdoors. It doesn't matter if that time is spent having a picnic or having sports.
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Anna I work in a bank from Monday to Friday. My house is near a park and it is about ten kilometers from my office. I usually go to work by train. I usually get up at 6:30 a. m. and take the train at 7:00 a. m. It usually takes me about thirty minutes to get to my office. The train is quick and cheap. I am never late for work. |
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Joe I am a student. My house is near a beautiful lake. My school is across from the lake. I can walk to school crossing a bridge. It takes me about thirty minutes. But I often go to school by boat, because it is more fun. It takes me about twenty minutes. |
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Nancy I'm a waitress. I work in a restaurant from Monday to Saturday. I often go to work by bus. It is about five kilometers from my house to the restaurant. It takes me about twenty-five minutes to go to work. Sometimes I am late for work because the traffic is very busy. |
Almost every day, we discuss the topic(话题)of health, especially(尤其是)for kids. But what is health？"Health means eating well, getting enough exercise, and having a healthy weight. Here is some advice that can help you keep healthy.
Eat different kinds of foods, especially fruit and vegetables. We all know that eating fruit and vegetables can help us stay healthy, but many of us only eat our favorite foods. Remember that we can only eat different kinds of food to get the nutrition(营养).
Drink water and milk most often. Everyone knows that water is important. Besides(除了)that, kids need plenty of calcium(钙)to grow strong bones, and milk has a lot of it. Every day, you should drink at least three cups of milk when you are 9 years old or older. You should also try to have less sugary drinks, like soda and cola, because they have no important nutrition.
Listen to your body. When you are eating, notice how your body feels. When your stomach feels comfortably full, stop eating. If you eat too much too often, it can make you feel unhealthy and fat.
Limit(限制)screen time. What's screen time？It's the amount(数量)of time you spend watching TV, movies, and playing computer games. The more time you spend on these sitting-down activities, the less time you will spend playing sports, like basketball, and doing other activities like bike riding and swimming. Try to spend no more than 2 hours a day on screen time.
