The question whether there is life on Mars (火星) has made the public think a lot for more than a century. The closest look showed Mars to be a dusty, cold world, covered by air too thin to breathe. A British spaceship and Europe's Mars spaceship plan to land on Mars or enter orbit (轨道) around it. One of the NASA’s (美国宇航局) spaceships is expected to land on January 3, the other is going to land on the opposite side of Mars on January 24. Since 1960, over twenty spaceships sent to Mars have failed. Most have been lost on flying up or landing because those are the most difficult times of any flights. Scientists wanted to find out whether there was water in Mars. In October, a team of scientists reported that Mars had been a dry wasteland. But weeks later, a second team reported differently that they had found some marks showed clearly that they were made by the rivers. Such marks told us that Mars was a warmer place billions of years ago — just as life first appeared here on Earth. Scientists at once raise a question: if what they said is true, what happened on Mars? Then what about the earth?
1.Which is right about Mars?
A．It’s cold without dust.
B．There is no water or air.
C．It’s warm with some thin air.
D．It’s a dusty, cold world almost without air.
2.Two NASA’s spaceships _______________.
A．will land on the different sides of Mars
B．will land on the same day
C．will enter orbit around Mars
D．will land with a man
3.The most difficult times of a flight are _______________.
A．taking off
B．flying up and arriving
C．entering the orbit and landing
D．leaving the earth and entering the orbit
4.A team of scientists reported that there might be_____________ in Mars.
A．nothing but air
B．nothing
C．water billions of years ago
D．thick air and lakes
5.What are scientists worried about when they raise the question?
A．Life disappeared on Mars.
B．Spaceships can’t land on Mars.
C．The air on the earth gets less and less.
D．The earth might be changed like Mars
九年级英语阅读理解中等难度题
The question whether there is life on Mars (火星) has made the public think a lot for more than a century. The closest look showed Mars to be a dusty, cold world, covered by air too thin to breathe. A British spaceship and Europe's Mars spaceship plan to land on Mars or enter orbit (轨道) around it. One of the NASA’s (美国宇航局) spaceships is expected to land on January 3, the other is going to land on the opposite side of Mars on January 24. Since 1960, over twenty spaceships sent to Mars have failed. Most have been lost on flying up or landing because those are the most difficult times of any flights. Scientists wanted to find out whether there was water in Mars. In October, a team of scientists reported that Mars had been a dry wasteland. But weeks later, a second team reported differently that they had found some marks showed clearly that they were made by the rivers. Such marks told us that Mars was a warmer place billions of years ago — just as life first appeared here on Earth. Scientists at once raise a question: if what they said is true, what happened on Mars? Then what about the earth?
1.Which is right about Mars?
A．It’s cold without dust.
B．There is no water or air.
C．It’s warm with some thin air.
D．It’s a dusty, cold world almost without air.
2.Two NASA’s spaceships _______________.
A．will land on the different sides of Mars
B．will land on the same day
C．will enter orbit around Mars
D．will land with a man
3.The most difficult times of a flight are _______________.
A．taking off
B．flying up and arriving
C．entering the orbit and landing
D．leaving the earth and entering the orbit
4.A team of scientists reported that there might be_____________ in Mars.
A．nothing but air
B．nothing
C．water billions of years ago
D．thick air and lakes
5.What are scientists worried about when they raise the question?
A．Life disappeared on Mars.
B．Spaceships can’t land on Mars.
C．The air on the earth gets less and less.
D．The earth might be changed like Mars
九年级英语阅读理解中等难度题查看答案及解析
For centuries, humans have wondered whether there is life on Mars. Why is Mars losing its air? Last week, the question was answered.
“The answer, is blowing in the wind,” said Michael Meyer. He is the lead scientist for Mars Exploration Program.
It turns out solar winds from the sun are slowly stripping( 除掉) away Mars' air. That is what scientists explained at a press conference.
Bruce Jakosky is the principal investigator on the MAVEN team. It is a spacecraft that collects information from Mars as it circles around the planet.
Today, Mars has a thin atmosphere. It is cold and dry. ______
"When we look at ancient Mars, we see a different type of surface. One that had valleys that looked like they were carved by water, lakes that were standing for a long period of time. We see an environment that was much more able to support liquid water."
Recently scientists found a kind of liquid water that flows with salt down a mountain area of the planet. But, it is not always there. Scientists already knew that ice exists on Mars. So why is it important to find liquid water?
"It means that we have a resource. And when we're looking at sending humans to Mars, water is one of the key things that we need to have. Not only for the astronauts to drink, but also to make oxygen and fuel."
Sending humans to Mars will be in the 2030s. Those chosen might fly any number of space vehicles still in development.
Human beings are developing rockets and spacecraft to get people to Mars. Scientists want to know how the human body reacts to being in space for long period of time.
Whether there is life on Mars remains unanswered. But some scientists think there might be some kind of microbial life on the planet. Finding life on another planet would change the way we view the whole universe.
1.What was the surface of ancient Mars like?
A. It had thin air. B. It was dry.
C. It had valleys that looked like they were carved by water. D. It had no water.
2.Which statement is TRUE according to the passage?
A. The surface of the Mars is different from it used to be.
B. Scientists have known whether there is life on Mars.
C. People can not send humans to Mars forever.
D. There is not any atmosphere on Mars.
3.What does the underlined word "Those" in the text refer to?
A. Scientists B. Rockets C. Astronauts D. Vehicles
4.Which of the following is the best for“______”in Paragraph 5?
A. But it used to be much different. B. It was the same case in the past.
C. It's always like this. D. It will be different in the future.
九年级英语阅读单选中等难度题查看答案及解析
任务型阅读 根据短文内容，回答下列问题。
Is there life on Mars? We don’t know．We’re sure that people on the earth are not able to live on Mars．People on the earth need oxygen to breathe in．There is almost no oxygen on Mars．
Living on Mars would be like living on a very high mountain．There would be little air．The temperature might be 50 degree above zero at noon and 140 degrees below zero at night．Many people think there may be plants on Mars．We know that on Mars there is carbon．This is a kind of material found in all plants and animals on the earth．Mars looks red through a telescope(望远镜)．It seems gray in some places．At times the gray color turn gray-green，then brown，then gray again．The gray-green color may be a kind of plant changing color with the seasons．
Will men go to Mars one day? If they do，they must take their own oxygen，food and clothing with them．
根据表格内容，完成下面各题。
1.Can people live on Mars?
2.Is there any oxygen on Mars?
3.What kind of material can be found in all plants and animals on the earth?
4.Does Mars look gray through a telescope?
5.What must men take if they go to Mars?
九年级英语其他题中等难度题查看答案及解析
A) 根据括号中所给的汉语写出单词，使句子意思完整正确。
1.The scientists are trying to find out whether there is life on other____ (行星).
2.He made such____ (迅速的) progress that his parents were very glad.
3.You are taking a _____ (风险) when driving so fast.
4.—Can you tell me the way to the train station?
—I’m sorry. I’m a____ (外地人) here myself.
5.The first____ (电子的) computer is called ENICA.
九年级英语单词拼写困难题查看答案及解析
The ______ that there is life on other planets has always encouraged scientists to explore the outer space.
A.possibility B.order C.advice D.information
九年级英语单选题中等难度题查看答案及解析
The_____that there is life on other planets has always encouraged scientists to explore the outer space.
A. possibility B. order C. advice D. information
九年级英语单选题中等难度题查看答案及解析
The ____________ that there is life on other planets has always encouraged scientists to explore the outer space.
A.invitation B.possibility C.order D.advice
九年级英语单选题中等难度题查看答案及解析
三、完形填空（共10分，每小题1分）
Do you know Mars? We are always__________, “Is there life on Mars?” We all know that it is difficult for people on the Earth to live on Mars because we need water and oxygen to
_____________, but there is little oxygen on Mars.
Living on Mars seems like living on a very high mountain. There is very thin__________. It might be 20 degrees above zero at noon and 60 degrees below zero__________.
A lot of people think there may be plants on Mars. We know that Mars has carbon. This is a kind of material__________in all plants and animals on the Earth. Through a telescope (望远镜), Mars looks red. In some places, it seems grey. At times the grey colour turns grey-
green, then brown, and then grey again. The grey-green colour may be a kind of ___. Life changes colour _________the seasons. At first scientists thought the red planet was as ________ as the Moon with dust storms blowing over the large sandy deserts. But Mars seems not as
______________as we once believed it to be. According to an analysis (分析) on the recent Mars
pictures, NASA (美国航空航天局）announced in September 28, 2015 that there is__on Mars. If that’s true, there will be hope of finding life on Mars.
1.A. talking B. wondering C. knowing D. telling
2.A. drink B. eat C. live D. breathe
3.A. air B. earth C. oxygen D. gas
4.A. at night B. in the daytime C. in the morning D. in the afternoon
5.A. seen B. heard C. called D. found
6.A. animal B. plant C. earth D. people
7.A. for B. by C. along D. with
8.A. lifeless B. hopeless C. cool D. hard
9.A. cold B. hot C. dry D. wet
10.A. water B. ice C. plants D. life
九年级英语完形填空困难题查看答案及解析
三、完形填空（共10分，每小题1分）
Do you know Mars? We are always__________, “Is there life on Mars?” We all know that it is difficult for people on the Earth to live on Mars because we need water and oxygen to
_____________, but there is little oxygen on Mars.
Living on Mars seems like living on a very high mountain. There is very thin__________. It might be 20 degrees above zero at noon and 60 degrees below zero__________.
A lot of people think there may be plants on Mars. We know that Mars has carbon. This is a kind of material__________in all plants and animals on the Earth. Through a telescope (望远镜), Mars looks red. In some places, it seems grey. At times the grey colour turns grey-
green, then brown, and then grey again. The grey-green colour may be a kind of ___. Life changes colour _________the seasons. At first scientists thought the red planet was as ________ as the Moon with dust storms blowing over the large sandy deserts. But Mars seems not as
______________as we once believed it to be. According to an analysis (分析) on the recent Mars
pictures, NASA (美国航空航天局）announced in September 28, 2015 that there is__on Mars. If that’s true, there will be hope of finding life on Mars.
1.A. talking B. wondering C. knowing D. telling
2.A. drink B. eat C. live D. breathe
3.A. air B. earth C. oxygen D. gas
4.A. at night B. in the daytime C. in the morning D. in the afternoon
5.A. seen B. heard C. called D. found
6.A. animal B. plant C. earth D. people
7.A. for B. by C. along D. with
8.A. lifeless B. hopeless C. cool D. hard
9.A. cold B. hot C. dry D. wet
10.A. water B. ice C. plants D. life
九年级英语完型填空困难题查看答案及解析
（2017·浙江温州· 6）________ the scientists have done lots of research on Mars，there is still much waiting to be discovered.
A. If B. Since C. Unless D. Though
九年级英语单选题中等难度题查看答案及解析