As we know, it is not easy to build a satellite(卫星). Building a traditional satellite usually takes years. The costs can be as high as $250 million or more. Most members of the design teams have worked in the field for a long time. They hold advanced degrees(学历) in math, science, or engineering.
But things are changing. High costs, unusual educational needs and long start-up times are no longer an obstacle(障碍) to space exploration. The scientists have developed a new type of tiny, inexpensive earth-orbiting(轨道) satellite.
So far, college students have built and launched(发射) several cube-shaped satellites, or CubeSats. At least 15 more are ready to go. Those already in orbit take pictures, collect information and send it back to the earth, just as regular satellites do.
But you might not even have to wait until you get to college to start designing and building your own satellite. A new program called KatySat aims to get teenagers to take part in. When kids understand what satellites can do, the kinds of ideas they’ll come up with may be countless.
Education isn’t the only aim of CubeSats because these tiny, technology-filled boxes are inexpensive to build and can be put together quickly, they’re perfect for testing new technologies that might one day be used on major space tasks.
The biggest challenge now is to find ways to bring the satellites back to the earth after a year or two. Or space junk could gradually increase because CubeSats become more popular.
Nowadays, college and high school students are getting a chance to learn what it takes to explore in space. Someday—perhaps a lot sooner that you imaging—you might get to design, build and launch your own satellite. If you do, you’re sure to have fun. And you might also get crazy about science for life.
1.Building a traditional satellite __________.
A. costs $250,000
B. needs college students
C. takes quite a long time
2.Compared with the traditional ones, the new satellites __________.
A. need long start-up times
B. are cheap and small-sized
C. collect more junk in orbit
3.The underlined word “countless” in Paragraph 4 probably means “__________”.
A. 无用的 B. 无价值的 C. 无数的
4.According to the passage, which of the following is true?
A. CubeSats could possibly cause pollution in space.
B. Scientists designed CubeSats for kids to play with.
C. Students can’t design satellites without college education.
5.The purpose of the author writing the passage is __________.
A. to tell us that satellite technology can also be learned by kids
B. to show that high technology brings a big change in kids’ life
C. to tell us that kids must study hard to learn satellite technology
九年级英语阅读理解困难题
As we know, it is not easy to build a satellite(卫星). Building a traditional satellite usually takes years. The costs can be as high as $250 million or more. Most members of the design teams have worked in the field for a long time. They hold advanced degrees(学历) in math, science, or engineering.
But things are changing. High costs, unusual educational needs and long start-up times are no longer an obstacle(障碍) to space exploration. The scientists have developed a new type of tiny, inexpensive earth-orbiting(轨道) satellite.
So far, college students have built and launched(发射) several cube-shaped satellites, or CubeSats. At least 15 more are ready to go. Those already in orbit take pictures, collect information and send it back to the earth, just as regular satellites do.
But you might not even have to wait until you get to college to start designing and building your own satellite. A new program called KatySat aims to get teenagers to take part in. When kids understand what satellites can do, the kinds of ideas they’ll come up with may be countless.
Education isn’t the only aim of CubeSats because these tiny, technology-filled boxes are inexpensive to build and can be put together quickly, they’re perfect for testing new technologies that might one day be used on major space tasks.
The biggest challenge now is to find ways to bring the satellites back to the earth after a year or two. Or space junk could gradually increase because CubeSats become more popular.
Nowadays, college and high school students are getting a chance to learn what it takes to explore in space. Someday—perhaps a lot sooner that you imaging—you might get to design, build and launch your own satellite. If you do, you’re sure to have fun. And you might also get crazy about science for life.
1.Building a traditional satellite __________.
A. costs $250,000
B. needs college students
C. takes quite a long time
2.Compared with the traditional ones, the new satellites __________.
A. need long start-up times
B. are cheap and small-sized
C. collect more junk in orbit
3.The underlined word “countless” in Paragraph 4 probably means “__________”.
A. 无用的 B. 无价值的 C. 无数的
4.According to the passage, which of the following is true?
A. CubeSats could possibly cause pollution in space.
B. Scientists designed CubeSats for kids to play with.
C. Students can’t design satellites without college education.
5.The purpose of the author writing the passage is __________.
A. to tell us that satellite technology can also be learned by kids
B. to show that high technology brings a big change in kids’ life
C. to tell us that kids must study hard to learn satellite technology
九年级英语阅读理解困难题查看答案及解析
阅读理解。
Years ago, as we know, zoos kept animals in cages. Cages made it easy for visitors to see the animals, but a small cage is not a good place for an animal to live in.
Today animals live in open areas. There are usually plants and a little lake around, like the animals' habitats. Visitors usually stay in the bus to see the animals outside.
Zoos help to protect all kinds of animals. They protect animals in the zoo as well as animals in the wild. How do they do this? Zoos tell people how animals live in the wild and how to help protect their environment.
The number of many kinds of plants and animals is becoming smaller and smaller. Mammoths, which are related with Asia elephants, are now extinct(已灭绝的.Scientists say that 4 different kinds of living things are disappearing a day!
Zoos are working together to help animals-our friends.
1.In the past, zoos kept animals in cages so that people can .
A. protect them B. see them better
C. feed them D. save them
2.Today, zoos keep animals .
A. in open areas B. in bigger cages
C. in smaller cages D. in the buses
3.To protect animals, zoos .
A. are trying to keep all kinds of animals
B. are trying to free the animals
C. tell people more about animals
D. want people to feed the animals
4. A mammoth is a kind of that has gone extinct.
A. plant B. bird
C. animal D. tree
5. An animal or a plant that is going extinct .
A. has more and more living members
B. comes into this world soon
C. becomes very dangerous
D. has fewer and fewer living member
九年级英语阅读理解中等难度题查看答案及解析
As is well known, saying “no” is not easy at all. But sometimes we have to learn to say “no”. To learn to say “no”, we have to first understand what’s stopping us about it. There are some common reasons why people find it hard to say “no”.
You want to help others. You are a kind soul(灵魂) at heart. You don’t want to turn the person away and you want to help when possible, even if it may take up your time.
Afraid of being rude. I was brought up under the idea that saying “no”, especially to people who are older, is rude. This thinking is common in Asian culture, where face-saving is important. It means not making others look bad or lose faces.
Wanting to be agreeable. At times, you find you are not in agreement. You don’t want to keep yourself away from the group, so you agree to do others’ requests(请求).
Fear of conflict(冲突). The person might be angry if you refuse him. This might lead to an ugly conflict. Even if there isn’t, there might be disagreement which might lead to bad effects(影响) in the future.
Fear of losing opportunities(机会). Sometimes, saying “no” means closing doors or losing opportunities. It may make you feel worried. For example, one of my friends was asked to work in another department(部门) in her company(公司). Since she liked her team, she didn’t want to go. However, she didn’t want to say “ no” as she felt it would affect her promotion(晋升) opportunities in the future.
71题完成句子;72~73题回答问题;74题找出并写下全文的主题句;75题将画线句子译成汉语。
1.In Asian culture, it is ______________________________ to say “no” to people who are older.
2.Why do you agree to do others’ requests?
____________________________________________________________________.
3.What does saying “no” mean sometimes?
___________________________________________________________________.
4._________________________________________________________________.
5._________________________________________________________________.
九年级英语任务型阅读困难题查看答案及解析
When we think of a sandcastle (沙堡), it is usually a beautiful building but it is not suitable to live in. However, two early built sand hotels are built in the cities of Oss and Sneek, in the Netherlands (荷 兰), during the popular sand sculpture festivals (沙雕节) every year. People can experience life in them. Here is something useful about the sand hotels.
The developer, Zand Hotel, said the idea to build the huge sand hotels came from the ice hotels. However, visitors to those have to sleep on ice beds in low temperatures and have no electricity or Wi-Fi. But the guests at the sand hotels don’t have to face the difficulties.
That’s because the buildings may be made from sand, but each room has all the things of a common hotel, such as wood beds, showers and toilets. So, they can rest easily. Each room also has running water, windows, electricity and Wi-Fi. It only costs $172 a night, even including a European breakfast and a free tour of the nearby sand sculpture festival.
Building the sand hotels wasn’t easy. It took five weeks and over 2,000,000 pounds of sand to build each room. Not surprisingly, the one-of-a-kind hotels are a huge hit with both locals and visitors. And they have been fully booked since they opened in early May. Unluckily, with the sand festivals drawing to a close, the building will soon have to come crumbling down (坍塌). The one in Sneek will shut its doors on September 29th while the other is planned to close on October 4th. But don’t be sad.The developer already has plans to rebuild the sandcastles in the Netherlands next year, and also plans similar festivals in the U.K. and Germany!
1,2题完成句子;3题简略回答问题;4题从文中找出并写下全文的主题句;5题将文中画线句子译成汉语。
1.Zand Hotel got the idea of building sand hotels from_____________________________.
2.Visitors in ice hotels don’t have ______________________________________________.
3.When did the sand hotels open? ______________________________________________
4._________________________________________________________________________
5._________________________________________________________________________
九年级英语多任务混合问题中等难度题查看答案及解析
As we all know, it’s not polite to keep others _____ for a long time.
A) wait B) waited C) to wait D) waiting
九年级英语单项填空中等难度题查看答案及解析
As we all know, it’s not polite to keep others______for a long time.
A. wait B. waited C. to wait D.waiting
九年级英语单项填空中等难度题查看答案及解析
As we all know, it’s not polite to keep others_________for a long time.
A. wait B. waited C. to wait D. waiting
九年级英语单选题简单题查看答案及解析
1As we all know, it’s not polite to keep others _________ for a long time.
A. wait B. waited C. to wait D. waiting
九年级英语单项填空困难题查看答案及解析
As we all know, it’s not polite to keep others_________for a long time.
A.wait B.waited C.to wait D.waiting
九年级英语单选题简单题查看答案及解析
As we all know, Charles Dickens is considered to be a great English writer. He's very famous not only in Britain, but also in many other ____ in the world. He was born in 1812 and he lived in London. He wrote lots of books, and he also liked ____. He was an actor. Maybe it's interesting to hear that and that's _____ his books were so good. He gave public readings of his stories that were very popular. His stories first appeared in a magazine, in parts. People always wanted _______. part. He wrote a lot, and most of them were popular. There were films and plays of them ______ Oliver Twist became a famous musical play, and Great Expectations was a wonderful ______. Dickens's early life was very hard, His family was poor, and his mother sent him out to work in a factory when he was 12. He ______ it, but he used his experiences in his writing. He married Catherine Hogarth and they had a big family. He continued to write_______he died. When he died in 1870, he was ______ a story. But what a pity! We'll never know _____it ended.
1.A. cities B. countries C. towns D. villages
2.A. reading B. writing C. acting D. playing
3.A. what B. how C. when D. why
4.A. the next B. next C. next to D. next time
5.A. either B. as well C. as well as D. also
6.A. book B. story C. play D. film
7.A. hated B. enjoyed C. wanted D. imagined
8.A. as B. while C. until D. since
9.A. drawing B. singing C. writing D. making
10.A. what B. how C. who D. which
九年级英语完型填空中等难度题查看答案及解析