Scientists think that humans will live in space ______.
A. later B. later on C. after 100 years D. one day
九年级英语单选题中等难度题
Scientists think that humans will live in space ______.
A. later B. later on C. after 100 years D. one day
九年级英语单选题中等难度题查看答案及解析
Some scientists think that it will take __ of years to make robots do most work for humans.
A. hundreds B. hundred C. thousand
九年级英语单项填空困难题查看答案及解析
Many scientists believe that robots ______ able to talk like humans in 50 years.
A．were B．are
C．will be D．have been
九年级英语单项填空简单题查看答案及解析
We promise that we will never forget the human _______. We all love to live in peace.
A. achievement B. service
C. thought D. spirit
九年级英语单项填空中等难度题查看答案及解析
---I think there is little that robots will take the place of humans in the future.
---I agree with you. After all, the smartest robots are made and controlled by people.
A. experience B. accident C. change D. chance
九年级英语单选题中等难度题查看答案及解析
Stephen Hawking, one of the world's most famous scientists, believed that humans will one day have to move into space, "Once we step into space, our future should be safe," he said.
Today, many countries are all planning to send astronauts to Earth's closest neighbor: the moon. Some of these countries want to create space stations there within the next 10 years. These stations will prepare humans to visit and later live on Mars or other earthlike planets.
__①__ Robert Zubrin, a rocket scientist, thinks humans should colonize(殖民) space. He wants to start with Mars. Why? He thinks sending people to Mars will allow us to learn a lot of things—for example, the ability of humans to live in a very different environment. Besides, any progress we make in the fields of science, technology, medicine. and health will do good to people here on Earth.
__②__ Elon Musk, the CEO of Space X also believes we should colonize Mars. His long-term goal is to put one million people there if something bad happens to us here on Earth.
__③__ Many people say it's too expensive. Also, most space trips are not short. A one-way trip to Mars, for example, would take at least six months. People traveling this kind of distance could face many health problems. Besides, these first people would find life especially difficult in space. On the moon's surface, for example, the sun's rays are very dangerous. People would have to stay indoors most of the time.
__④__ No matter what different concerns there are, sending people into space seems certain. In the future, we might see cities on the moon or even new human cultures on other planets. First stop: the moon.
1.According to the passage, why are some countries planning to build space stations?
A.To develop space travel. B.To learn more about the moon's surface.
C.To prepare humans to live on other planets. D.To cut down the number of people living on Earth.
2.Which is the best place for the sentence "Not everyone thinks sending humans into space is a smart idea. "?
A.① B.② C.③ D.④
3.What is the purpose of this passage?
A.To give reasons for and against colonizing space.
B.To describe what life would be like on the moon.
C.To compare the environments of Mars and the moon.
D.To introduce progress in space science and technology.
九年级英语阅读单选困难题查看答案及解析
There will not be enough space to the earth in the future.
A. live on B. live in
C. live on in D. live in on
九年级英语单项填空简单题查看答案及解析
Thinking is something you choose to do as a fish chooses to live in water. To be human is to think. But thinking may come naturally without your knowing how you do it. Thinking about thinking is the key to critical(批判性的) thinking. When you think critically, you take control of your thinking processes（过程）. Otherwise, you might be controlled by the ideas of others. Indeed, critical thinking is at the heart of education.
The word “critical” here has a special meaning. It does not mean taking one view against another view, as when someone criticizes another person for doing something wrong. The nature of critical thinking is thinking beyond the easily seen--beyond the pictures on TV, the untrue reports in the newspapers, and the faulty reasoning.
Critical thinking is an attitude as much as an activity. If you are interested in life and want to dig deeper into it, you are a critical thinker. If you find pleasure in deep thinking about different ideas, characters, and facts, you are a critical thinker.
Activities of the mind and higher-order reasoning（推理）are processes of deep and careful consideration. They take time, and do not go hand in hand with the fast speed in today’s world: fast foods, instant coffee, and self-developing film. If you are among the people who believe that speed is a measure（尺度）of intelligence（智慧）, you may learn something new from a story about Albert Einstein. The first time Banesh Hoffman, a scientist, was to discuss his work with Albert Einstein. Hoffman was too nervous to speak. But Einstein immediately made Hoffman feel comfortable by saying, “Please go slowly. I don’t understand things quickly.”
1.Critical thinking is important to us because if we do not think critically, _______.
A．it will be hard for us to think naturally and fast
B．we might be controlled by other people’s ideas
C．we will follow the ideas of others naturally
D．we might be fooled by other people’s ideas
2.If you are a critical thinker, you will ________.
A．take one view against another view
B．trust the reports in the newspapers
C．think deeply about different ideas
D．criticize other people for their mistakes
3. In the last paragraph, “something new” suggests that ________.
A．speed can improve intelligence
B．intelligence is not decided by speed
C．the smarter you are, the faster you do things
D．the faster you do things, the smarter you become
九年级英语阅读理解中等难度题查看答案及解析
An astronaut’s work may sound exciting, but living in space isn’t as fun as you think. The website www.space.com lists the disadvantages of living in space. Here are some of them.
When astronauts work outside the station during spacewalks, they have to wear special gloves. The gloves are very tight. They can hurt the astronauts’ fingernails(手指甲) and even make them fall off.
In space, you don’t have many choices in what you eat. It’s hard to get fresh fruits and vegetables. It is not OK to eat bread because it leaves crumbs(碎屑). Crumbs could fly around everywhere.
In space, it is impossible to have a good shower because water can fly all over the ship and break the machines. Astronauts have to use a special water-shooting(喷水) gun and a washcloth.
Astronauts lose their bone strength quickly during their stay in space. So far, there is no way to solve this problem. They do exercise while they’re in space to try to keep their bones strong as long as possible.
Perhaps the hardest part of life in space is the feeling of loneliness. Astronauts sometimes have to spend weeks and even months away from Earth. They miss their friends and families.
1.People often think the life in space is ________ .
A. terrible B. lonely C. hard D. fun
2.What may hurt astronauts fingernails while working in space?
A. Washcloth. B. The special gloves.
C. The water-shooting gun. D. Crumbs.
3.. How do the astronauts have a good shower in space?
A. By eating bread.
B. By breaking the machines.
C. By using a special water-shooting gun and a washcloth.
D. By wearing gloves.
4. How do the astronauts keep their bones strong in space?
A. By taking medicine. B. By doing exercise.
C. By taking a good rest. D. By walking in space.
5. What’s the hardest part of life for astronauts in space?
A. They feel very lonely. B. They have to stay alone in space.
C. They have no friends. D. They have no families.
九年级英语阅读理解中等难度题查看答案及解析
We will have less space to live because of _________________________(迅速的增加) in population.
九年级英语完成句子中等难度题查看答案及解析