Even if you are a good high jumper, you can jump only about seven feet off the ground. You cannot jump any higher because the earth pulls you hard. The pull of the earth is called gravity. You can easily find out the pull of the earth. If you weigh yourself, you will know how much gravity is pulling you.
Since there is gravity, water runs down hill. When you throw a ball into the air, it falls back down. Because of gravity, you do not fall off the earth as it whirls (旋转) around.
Then, can we get away from the earth and go far out into space? Now you can do it, because spaceships have been invented. Then spaceship will go so fast that it can escape the earth's gravity and carry you into space.
When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.
People who are near-sighted can only see things that are very close to their eyes. Everything else seems unclear. Many people who do a lot of work such as writing, reading and sewing become near- sighted.
However, people who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatisms (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.
① are near-sighted ② are far-sighted ③ have astigmatisms ④ have cataracts
Louis Armstrong had two famous nicknames (绰号). Some people called him Bagamo. They said his mouth looked like a large bag. Musicians often called him Pops, as a sign of respect for his influence on the world of music.
Although born in 1901 in New Orleans, poor, he lived among great musicians. Jazz was invented in the city a few years before his birth. Armstrong often said, "Jazz and I grew up together."
Armstrong showed a great talent for music when he was taught to play the comet (短号) at a boys' home. In his late teens, Armstrong began to live the life of a musician. He played in parades, clubs, and on the steamboats that traveled on the Mississippi River. At that time, New Orleans was famous for the new music of jazz and was home to many great musicians. Armstrong learned from the older musicians and soon became as famous as them.
In 1922 he went to Chicago. There, the tale (传说) of Louis Armstrong begins. From then until the end of his life, Armstrong was celebrated and loved wherever he went.
His comet playing had deep humanity (仁爱) and warmth that caused many listeners to say, "Listening to Pops just makes you feel good all over." He was the father of the jazz style and also one of the best-known and most admired people in the world. His death, on July 6, 1971, was headline news around the world.
It was a quiet village in which there was a camp. It was far from the towns and cities and there were some high mountains around. Of course it was a good place for training the new soldiers.. Mr. White, an officer of forty, was strict with them and he hardly let them leave the camp.
Once Mr. White was ill in bed. He couldn't work and a young officer, Mr. Hunt began to train the new soldiers instead of him.And let nine soldiers go to the nearest town to have a holiday. But night fell and none came back to the camp. He was worried about it and stood at the gate. It was five to twelve when Mr. Hunt decided to go to the town and see what was happening with the young men.. At that moment the nine soldiers came back. It seemed they were all drunk. Of course they found the officer was angry.
"I'm sorry, sir." said the first soldier." I left the town on time.. I had to buy a horse and made it run fast. Bad luck! It died and I had to run back."
And the other seven soldiers said they were late for the same reasons. It was the last soldier's turn. He said, "I'm sorry sir, I got on a bus on time, but..."
Having heard this, the officer became even angrier and stopped him at once. He called out, "If you say something was wrong with your bus, I'll punish you at once!"
"No, no, Sir." said the young man." My bus was all right.."
A. He knew the young men well.
B. But something was wrong with my bus on my way here.
C. He was very strict, too.
D. But the dead horses were in the way.
E. He started the car quickly and set off.
F. But it was difficult for the young men to go outside.
From Monday to Friday people are busy working or studying, but in the evenings and 1 they are free and enjoy themselves. Some watch television or go to the movies, others 2sports. This is decided by their own.
There are many different ways to spend times. It may be something from collecting stamps 3 making model planes. Some hobbies are very 4, but others don't cost anything at all. Some collections are worth 5 of money, others are valuable only to their owners.
I know a man who has a coin collection worth several 6 dollars. A short time ago he bought a rare fifty-cent piece which 7 him $250! He was very happy about this collection and thought the price was all right. On 8 hand, my youngest brother collects match boxes. He has almost 600 kinds of them, but I wonder 9 they are worth any money. However, to my brother they are quite valuable. Nothing makes him happier than to find a new match box for his collection. That's what a hobby means, I think. It is something we 10 to do in our free time just for the fun of it. The value in dollars is not important, but the pleasure it gives us is.
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Do you love holidays but hate the increase weight that follows? You are not.
Holidays are happy days with pleasure and delicious foods. Many people, however, are worried the weight that comes along with these delicious foods.
With proper planning, though, it is possible to control your weight. The idea is to enjoy the holidays not to eat too much. You don't have to keep away from the foods that you enjoy. The following suggestions may of some help to you.
Do not miss meals. Before you leave home for a dinner, have a small, low-fat snack. This may help to keep you getting too excited before delicious foods. Begin with clear soup and fruit or. A large glass of water before you eat may help you feel full. Use a small plate; a large plate will encourage you to have than enough.
Better not have high-fat foods. Dishes thatoily or creamy have much fat in . Choose lean meat (瘦肉). Fill your plate with salad and green vegetables.
If you have a sweet tooth, try mints (薄荷) and fruits. They don't have fat like cream and chocolate.
Don't let exercise take a break during the holidays.20-minute walk after a meal can help burn off excess (过多的) calories.
For 72 years, Lisa Gumpel kept a secret. "For a long time, I decided not to tell anyone about it," said Gumpel, 85 years old, who finally settled (定居) in Minnesota the war and now lives in the Twin Cities.
She told people that she and her two sisters were among the 669 Jewish children (save) by a kind man to run away from the Nazi concentration Camp 1939. Their rescuer(营救者)was a British businessman named Nicholas Winton, who also kept the story to (he) until his wife found a list of the (children) names.
Gumpel was very surprised in 1988 when the truth about Winton's one-man rescue operation finally came out. " (someone) knew that he actually did all by himself," she said. "He (work) so hard to save lives."
Winton still doesn't think he's a hero, saying that his life was never danger and that he was doing what he feels every person should do.
A party was held for him and the people he had saved. Gumpel was (excite) when she finally met him. "He still treats us all like we're his kids," she said with a (warm) smile on the face.
A strange thing happens to nearly everybody. At night, people turn off the lights, pull up the covers and close their eyes. Six or seven sleeping hours later, they wake up again. Strange, isn't it?
Sleep ①puzzles science. Scientists and doctors would rather talk about why one can't fall asleep. They are not sure what causes sleep. The best conditions for sleep are good health and meal neither too big nor too small. No worries and a comfortable place are important, too.
Strange things happen during sleep. For example, you move often. You would feel tired if you didn't. You also dream. Part of your brain is still awake when you sleep. Dreaming happens when the memory and imagination in parts of your brain are still awake. Experiments have shown most of us dream in color. Bad dreams may be caused by stomachache. Don't worry if you dream. Some great stories and poems were begun while their writers slept.
① good health ② ③ ④ a comfortable place
Most people around the world are right-handed. This also seems to be true in history. In 1799, scientists studied works of art made at different times. Most of the people shown in these works were right-handed, so the scientists guessed that right-handedness had always been common through history. Today, only about 10% to 15% of the world's population are left-handed.
Why are there more right-handed people than left-handed ones? Scientists now know that a person's two hands each have their own jobs. This is because of the different work of the two sides of the brain. The right side of the brain, which makes a person's hands and eyes work together, controls the left hand. The left-side of the brain, which controls the right hand, is the centre for thinking and doing problems. These findings show that more artists should be left-handed, and studies have found that left-handedness is twice as common among artists as among people in other jobs.
No one really knows what makes a person become right-handed instead of left-handed. Scientists have found that almost 40% of the people become left-handed because their main brain is damaged when they are born. However, this doesn't happen to everyone, so scientists guess there must be another reason why people become left-handed. One idea is that people usually get right-handed from their parents. ①If a person does not receive the gene (基因) for right-handedness, he / she may become either right-handed or left-handed according to the chance and the people they work or live with.
Though right-handedness is more common than left-handedness, people no longer think left-handed people are strange or unusual. A long time ago, left-handed children were made to use their right hands like other children, but today ②they don't have to.
第2段
第3段
内容：
1）你对自律的认识；
2）你做过什么自律的事情，以及这样做给你带来的好处。
要求：
1）表达清楚，语法正确, 包括所有相关信息，可作适当发挥；
2）文章中不得出现真实姓名和校名；
3）字数：80-100。文章开头已给出，不计入总词数。
提示词语：self-discipline n. 自律 self-disciplined adj. 自律的
Self-discipline
lf-discipline is very important for everyone.
