Unless we spend money to spot(认出,发现) and prevent asteroids(小行星) now, one might crash into Earth and destroy life as we know it, say some scientists.
Asteroids are bigger versions of the meteoroids(流星体) that race across the night sky. Most orbit the sun far from Earth and don't threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth.
Buy $500 million worth of new telescopes right now, then spend $10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, we'll have a way to change its course.
Is it worth it? Two things experts consider when judging any risk are: ⑴How likely the event is; ⑵How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500, 000 years, Sounds pretty rare but if one did fall. It would be the end of the world." If we don't take care of these big asteroids, they'll take care of us, "says one scientist.' It's that simple."
The cure, though, might be worse than the disease. Do we really want fleets(舰队,车队) of nuclear weapons sitting around on Earth?" The world has less fear from doomsday(毁灭性) rocks than from a great nuclear fleet set against them," said a New York Times article.
Once there was a famine(饥荒). A rich cook sent for twenty of the poorest children in the town and said to them, "In this basket there is a piece of bread for each of you. Take it and come back to me every day at this hour for more."
In a hurry the hungry children got together around the basket, and fought over the bread because each wanted the largest piece. At last they went away without even thanking the good cook. Mary, a poorly - dressed girl, did not fight with the other children, but stood quietly in the distance. When the badly -behaved children had left, Mary took the smallest piece, which was all left in the basket. She kissed the cook's hand and went home.
The next day the children were as badly - behaved as before. Mary got a piece of bread almost half the size of the one she got the first day. When she came home, her mother cut the bread open. Many new, shining pieces of silver fell out of it.
Her mother was very worried, and said," Take the money back to the cook at once. The silver must have fallen into the dough (面团) by accident. Hurry up, Mary."
When the little girl gave the rich man her mother's message, he said," It was no mistake. I had the silver pieces put into the smallest bread for you as a prize. Always be as satisfied, peaceable and thankful as you now are. Go home now, and tell your mother that the money is yours. "
— Sorry. I don't know. I'm new here.
you on weekends?
As we all know, with the development of technology, smartphones have influenced the old people in our family a lot. A TV programme interviewed three teenagers on how smartphones influence their family.
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My grandfather asked me to teach him how to play the popular video game King of Glory(王者荣耀). I was surprised that he was interested in this! He chats with family members on Wechat every day. He tries to learn other new things as well. For example, he watches courses on learning apps. Although he is old, he still cares about technology and sports. So, as we can see, the internet can help elderly people. —Xing Yuxi, 12, Chongqing |
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I live in Hangzhou, a city of technology. People enjoy the convenience(便利) brought by the internet. However, I often worry about the elderly. Take my grandma as an example. On one hand, she would like to get discounts by using mobile phones. On the other hand, she's afraid of getting cheated online. I think it takes time for elderly people to get used to these things. We should help them keep up with the times. — Sun Run, 14, Zhejiang |
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Smartphones have made a big difference in my grandma's life. In the past, newspaper and TV programs were her only ways to get information. However, it was not good for her eyes, as she has severe cataracts(严重白内障). But now, she can listen to the news through all kinds of apps on her mobile phone. She doesn't have to look at the screen all the time. Sometimes, she even plays mobile games for fun. Thanks to the internet, my grandma now has a more colorful life. —Wen Jiayi, 13, Sichuan |
— . They want to join the club.
要求:①80词以上,开头已给出,不计入总词数,可以适当增加。②语句通顺,无语法错误,卷面整洁。
Dear John,
Yours
My sister is very kind, sheher classmates.
— I often _______________ homework.
You may wonder whether stress (焦虑) is a serious matter. The answer is "Yes". You should realize that stress is a risk to your health. If you want to live a long and healthy life, you need to begin to guard against stress from a young age.
Here are some ways to deal with stress and bring balance (平衡) to your life:
Be positive
One way to cancel out (消除) stress is through positive thinking. You should always look on the bright side of life, and imagine that you will have a happy and successful future.
Learn to relax
Force yourself to take a break from your studies and worries about exams. You can do this by taking a walk, reading a book, going to a concert or seeing a film, or just sitting in a private place and being silent for a moment.
Take up a hobby
Learn to paint, take up skating, or start playing a musical instrument. When you are busy with a hobby, you leave all your worries behind.
Take care of your body
Stress is your body's enemy. Taking exercise, eating healthily and getting enough sleep are all the things that can help you.
Laugh
Sometimes laughter is the best medicine for stress. Seeing a funny film or telling jokes with friends will often cheer you up when you are low.
In August 2040, People in Garden city are buying their homes and cars on the Internet from QuickBuy.com. Here is the website.

① get information about the weather
② order the food
③ book a restaurant
④ see all the traffic in front of us
⑤ know where we are
—What do you think of sleeping outside at night?
—________. I like it.
A. That sounds terrible B. It’s dark
C. It sounds exciting D. It’s interested
阅读理解;阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项。
“Mum, I made a new friend at school. Can I bring her home tomorrow?” my 10-year-old daughter Rose said. Rose is a shy girl. I want her to make some friends.
“Sure.” I said.
At that moment, I remembered my best friend Gina. We lived across the street from each other in New York. Like my daughter, I was shy at that time, but Gina helped me a lot and later I talked more. When we were in high school, Gina and her family went to Chicago. I never saw her again.
The next day, Rose brought her friend home. “Hi, Mrs Hand. I’m Anna,” Rose’s new friend Anna said. Her eyes are so big and blue. She is so much like Gina.
That afternoon, Anna’s mum came to pick her up. She walked into my room. I shouted, “Gina! Oh, my God! Anna is your daughter. Gina, we haven’t seen each other for a long time! ”
We hugged each other and laughed happily.
( )1.How old is Rose?
A. 8 years old B. 10 years old
C. 12 years old D. 14 years old
( )2.The writer thinks Rose is .
A. active B. friendly C. shy D. careless
( )3.Who is Gina?
A. Rose’s mother B. Anna’s daughter
C. Rose’s new friend D. The writer’s best friend
( )4.What does Anna look like?
A. Her eyes are big and blue.
B. She’s tall and thin.
C. Her hair is black and long.
D. Her face is round.
( )5.Which of the following is true according to the passage?
A. The writer is living in Chicago now.
B. Anna helps Rose a lot at school.
C. Gina moved to New York when she was in high school.
D. The writer hasn’t seen Gina for a long time.
Mr and Mrs White had two sons and three daughters . One Sunday , Mrs White said to her husband , “The children don’t have any lessons today , and you’re free too . There’s a new funfair(游乐场) in the park . Let’s all go there to play .”
Her husband said , “I want to finish some work today.” “Oh, forget it, Go there and make our children happy . That’s the most important work ,” Mrs White said.
So Mr and Mrs White took their children to the funfair . Mr White was forty-five years old, but he enjoyed the funfair more than his children . He hurried from one thing to another , and ate lots of sweets . One of the children said to their mother , “Dad is just like a small child, isn’t he , Mom?” Mrs White didn’t want to follow her husband around any more at that time and answered, “He is even worse than a small child, Mary, because he might spend more money than a small child.”
( )1. There were children in the White family.
A. two B. three C. five
( )2. One Sunday , Mr and Mrs White wanted to go to with their children .
A. school B. work C. a funfair
( )3. Mr White liked the place so much that he .
A. bought lots of sweets B. followed his wife all the time
C. hurried from one thing to another
( )4. From the story we know Mrs White when Mary asked her the question.
A. was still excited to play B. was a little angry with Mr White C. looked for Mr White everywhere.
( )5. Of all the family members, enjoyed playing there most that Sunday.
A. Mr White B. Mrs White C. Mary
That’s _______.
A. good enough B. enough good
C. well enough D. enough well