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
八年级英语阅读单选中等难度题
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
八年级英语阅读单选中等难度题查看答案及解析
Many people believe that, by the year 2100, we will live on the planet Mars(火星). Here is what life could be like.
First of all, transport should be much better . By 2100, spaceships can travel at half the speed of light. 1._______________________________.
Secondly , humans need food , water and air to live. Scientists should be able to find plants that can grow on Mars. These plants will provide us with food and air.
2.__________________________ .We could easily jump too high and fly slowly away into space. To prevent this , humans on Mars have to wear special shoes to make themselves heavier.
Life on Mars will be better in many ways. 3._________________________ .It is possible to live a large building with many bedrooms. Then , robots will do most of the work, so we have more time for hobbies.
4._________________________________ .Every student can study , do their homework on the computer and take exams in online schools. Each student will also have their own online teacher called “e--teacher”.
However , in some ways , life on Mars may not be better than that on the earth today. 5._____________________________________________ . Meals will probably be in the shape of pills (药片) and will not be as delicious as they are today. Also , space travel will make many people feel ill.
A. There will probably be no school on Mars. B. It might take us two or three days to get to Mars. C. There is a problem for us to live on Mars. D. Food will not be the same. E. First , people will have more space. |
八年级英语补充句子简单题查看答案及解析
句型转换
1.Some scientists think there is water on Mars.(改为否定句)
Some scientists ________________ think there _________________ water on Mars.
2.The universe is very large.(改为感叹句)
___________ __________________ the universe is!
3.There will be many robots in the factory.(改为现在完成时)
There __________________ _______________ many robots in the factory.
4.They have already come back from Hong Kong.(改为否定句)
They _______________ _______________ come back from Hong Kong ________________.
5.The boy is so careful that he made few mistakes.(改为同义句)
The boy is _________________ _________________ __________________ make few mistakes.
八年级英语句型转换中等难度题查看答案及解析
缺词填空
There is nothing more i 1. to life than the sun. W 2. the sun, all living things on the earth would die. The sun is a star. In the sky there are t 3. of stars like the sun. They are as large as the sun and as hot as the sun. At night you can see many stars, but in the daytime you can o 4. see one star—the sun.
The sun is much n5. to us than the other stars. That is w 6. it looks the biggest and brightest of all the stars. The distance (距离) of the sun from the earth is as m 7. as 150,000,000 kilometers. Most stars are thousands of light-years a 8. from the earth.
Do you know what a light-year is? N 9. in the world travels faster than light. It travels 300,000 kilometers per second. And one light-year is the distance that light can travel in one y 10. .
八年级英语单词拼写中等难度题查看答案及解析
—Can you ______ people’s life on Mars in the future?
—No, I can’t.
A. think B. imagine
C. guess D. remember
八年级英语单选题中等难度题查看答案及解析
Ⅲ.补全对话
A:Hi,Rose.1.1.
B:Hi,Tom.I’m thinking about what the life would be like if we live on Mars.
A:That sounds very interesting!
B:Unluckily,people have known a little about Mars until now.
A:Oh,don’t worry.I have a new book named There Is Nothing to Do on Mars.
B:There Is Nothing to Do on Mars?2.2.
A:It tells a story about a boy named Martin.He has an experience on the red planet.
B:Really?3.3.
A:His family moved from their nice earth home to Mars.He moved around in his space shuttle to look for real Martians(火星人)with his robot dog.
B:4.4.
A:No,he didn’t.But he discovered some water under the ground.
B:Aha,he becomes a hero!5.5.
A:I agree with you.Here is the book.
B:I can’t wait to read it.Thanks a lot.
A.What’s it about?
B.What are you doing?
C.What happened to him?
D.What do you think of it?
E.Did he discover Martians?
F.Have our scientists even found anything yet?
G.Because so far scientists have not found anything yet.
八年级英语补全对话7选5困难题查看答案及解析
Water is very important to living things.Without water there can be no life on the earth.All animals and plants need water.Man also needs water.We need water to drink.to cool our food and to clean ourselves.Water is needed in offices,factories and schools.
Water is needed everywhere.There is water in seas;rivers and lakes ,Water is found almost everywhere.Even in the driest part of the world.there is some water in the air.You cannot see or feel it when it is a part of the air.The water in the seas,rivers and lakes is a liquid。The water in the air is a gas,and we call it water vapor.
Clouds are made of water.They may be made of very small drops of water.They may also be made of snow crystals(结晶体).Snow crystals are very,very small crystals of ice.Ice is frozen water.It is a solid.There can be snow and ice everywhere in winter.
( )4.Where Can we find water?
A.We can find water when it turns into vapor.
B.Water can be found almost everywhere
C.We can see water in deserts here and there.
D.Water is only in seas and rivers.
( )5.We must protect water resources because________.
A.crops need water B.all living things need water
C.all animals need water D.all plants need water
八年级英语阅读理解中等难度题查看答案及解析
根据句意和汉语意思翻译句子,每空一词。(10分)
1.到目前为止,只有地球上有生命。
_________ ________ ,there is only life on the earth.
2.他每天至少听一个小时的时间听英文节目。
He listens to English programs ____________ __________ an hour every day.
3.你觉得京剧怎么样?
What do you ________ _______ soap opera?
4.你多久去购一次物?How often ________ you ________ shopping?
5.我认为英语比数学简单。Ithink English is ________ ________ math.
八年级英语翻译简单题查看答案及解析
There a pen and some books on the desk.
A.is B.are C.have D.has
八年级英语单选题简单题查看答案及解析
Look,there ____ some junk food on the table.
A.is B.are C.has D.have
八年级英语单项填空简单题查看答案及解析