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Keep in mind that you can have too much of a good thing: over-exercising and exercising in a wrong way can
hurt your body. The following suggestions can help you avoid this.
Warm up before exercise. This helps to prepare your body for activities. It's especially important in the
morning.
Cool down after exercise. Rather than stop immediately, do a few gentle (轻柔的) activities to avoid aches
and pains (疼痛) later. Exercise with your limits (极限). Build up slowly. Pain is a waming, so never try to
work through it.If you don't listen to your body, you will hurt yourself. Avoid being thirsty. Water is important
to keep your normal temperature during exercise and prevent tiredness. Wear sports shoes. These shoes can
protect your feet and prevent you from being hurt.
B. Four.
C. Five.
D. Six.
B. Ask our doctor for advice.
C. Have a health examination.
D. Go over these suggestions.
B. Cooling our body down.
C. Drinking enough water.
D. Putting on sports shoes.
B. To avoid aches or pains later.
C. To keep normal temperature.
D. To avoid hurting ourselves.
Marianne, a schoolgirl, was learning to play the piano, and day after day her father stood behind as she played. How patient and loving her father was, and how cleverly he 1__ Marianne how to play the difficult piece! And there, almost lost in the big chair, sat Wolfgang. Nobody told him to 2 when Marianne was playing.
One evening the father said to Marianne that she had done very well. At the moment Wolfgang climbed onto his father’s leg and said to his father that he wanted to 3 the wonderful piece.
What a joke that was! He picked up his baby son, laughed, and said, “Look at your 4 hands. Why, you cannot span (横跨) the keys yet, you must wait, little man. You must wait!”
There was no end of fun during tea, and Marianne told her mother about Wolfgang 5 to play one of the pieces. 6 a while, the father stood up. “Listen!” said he. “Listen! Marianne is playing that piece 7 than ever!" But Marianne was washing plates in the kitchen.
His wife following, he moved upstairs quietly, pushed the door, and saw little Wolfgang __8__ in the darkness (黑暗). “I love it 9 !” said the child. It was the 10 of Mozart’s life of music.
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People are busy working every day, so they do not have enough time to do exercises. As a result, many people become too fat or too thin. To keep our bodies healthy, we have to do exercises every day.
There are many kinds of exercises. Bending (弯腰) and stretching (伸展) helps us move easily. Before we play ball games or swim, it is better for us to do bending and stretching exercises first. This kind of exercise is sometimes called warm-up exercise. Running is also a good exercise. If we cannot run fast, we can Jog. Jogging means running slowly. Again, before we run or jog, we must do warm-up exercises. Also, we should not run or jog in busy streets. The air there is often dirty. Some people like weight lifting (举重)because it can make their bodies strong. Also, we need to do some warm-up exercises before weight lifting.
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How to do ____1_____. |
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Why do people need to do exercises? |
People are busy _2_____ every day. Many people are too fat or too __3____. Doing exercises every day can keep us __4_____. |
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Different ____5___ of exercises. |
Bending and stretching helps us _6_____ easily, sometimes we call it ____7_____ exercise; ___8____ is a good exercise , too; We can ____9__ if we can’t run fast; Weight lifting can make our bodies _____10___. |
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Cows produce a lot of wastes. One cow can create 30 gallons of wastes each day. Now imagine the output of over 1,000 cows at Blue Farm. That’s really a big amount.
When farmers clean their barns, they put the wastes in a big heap, and spread some of them on their fields for fertilizer(肥料). But now places like Blue Spruce Farm have a new way of using cow wastes. They use them to produce electricity.
Here’s how it works: A big machine moves back and forth cleaning the barn floor. “The cows aren’t bothered,” says Marie Audet. “They are animals of habit; they get used to it, and just lift one foot and then another to let it go by.”
The machine pushes the manure into a big 600-gallon tank like a small swimming pool. The tank is called a digester (化粪池) because what happens there is just like what happens inside a cow: Bacteria(细菌) get to work and continue to digest the manure.
Methane gas (甲烷、沼气)in the atmosphere is known as a “greenhouse” gas because it keeps heat just like a greenhouse does, causing our planet to warm up. That’s an environmental concern. But the digester has a good result. Its gas is kept and used to power electric generators (发电机).
At Blue Farm, the generators make enough electricity to power 400 homes. The Audet family sells the extra electricity they can’t use themselves.
【小题1】We learn from the text that the Audet family is using cow wastes to ______.
| A．make electricity | B．produce fertilizer | C．build their farm | D．feed the cows |
| A．Marie Audet does the work | B．The job is done by machine |
| C．The cows lift the cow wastes | D．Bacteria get to work on them |
| A．The power of moving water. | B．The heat of burning coal. |
| C．The power of sunlight. | D．The heat of the methane gas |
| A．reducing | B．saving | C．recycling | D．changing |
| A．To introduce a new way of making electricity | B．To explain how a new energy works better |
| C．To show a new rebuilding plan for a big farm | D．To explain the reasons for green house effect |
People are busy working every day, so they do not have enough time to do exercises. As a result, many people become too fat or too thin. To keep our bodies healthy, we have to do exercises every day.
There are many kinds of exercises. Bending (弯腰) and stretching (伸展) helps us move easily. Before we play ball games or swim, it is better for us to do bending and stretching exercises first. This kind of exercise is sometimes called warm-up exercise. Running is also a good exercise. If we cannot run fast, we can Jog. Jogging means running slowly. Again, before we run or jog, we must do warm-up exercises. Also, we should not run or jog in busy streets. The air there is often dirty. Some people like weight lifting (举重)because it can make their bodies strong. Also, we need to do some warm-up exercises before weight lifting.
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How to do ____56______. |
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Why do people need to do exercises? |
People are busy _57_____ every day. Many people are too fat or too __58____. Doing exercises every day can keep us __59_____. |
|
Different ____60___ of exercises. |
Bending and stretching helps us _61_____ easily, sometimes we call it ____62_____ exercise; ___63____ is a good exercise , too; We can ____64__ if we can’t run fast; Weight lifting can make our bodies _____65___. |
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