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The universe is very big and it is very difficult to understand h1. large the universe is. But we know the earth is our home. It is a p2. and it goes around the sun. The moon goes a3. the earth.
Some astronauts have b4. to the moon and scientists have sent many spacecraft to some other planets. But so far, we haven't d5. life on other planets. Because none of them has an e6. like that of the earth.
Scientists have also found many other galaxies and they are very f7. away. No spaceship has travelled far enough to r8. them.
Is there any life beyond(在……以外) the s9. system in the universe? I think there is still a long way to go to know that. When I grow up, I want to become an a10. and work on China's space station.
(2017湖南永州)
On Dec.28,a small satellite(卫星)was launched(发射)into space from Taiyuan,Shanxi.It was a big news for students at Beijing Bayi School.After all,they designed the satellite.
With the help of space scientists,more than 30 students built this satellite(12cm long,11cm wide and 27cm tall).This is the first satellite designed and built by middle school students in China.
This August,the school worked with the China Center For Aerospace Science and Technology International Communications(CCASTIC中国航天科技国际交流中心)and started the satellite program.It allowed space experts to teach students about basic knowledge of satellites.
After several months of hard work,students designed their own satellite.Their main achievement was the design of the satellite’s function(功能) in space.“We worked together and came up with more than 10 ideas.But after tests and experiments we settled on four,”Zhu Xun,16,told Beijing Evening News.
Indeed,they have to consider the weight of the satellite.The satellite will stay in space more than 180 days.Its functions include taking pictures of Earth,radio communication and sending information to Earth.The students hope that the satellite can take photos of smog,typhoon(台风)and other weather conditions.
The students were divided into five groups.The group members worked closely to make satellite models“Every time we think the satellite we are designing will fly into space,we are excited and try to do experiments.”said Shen Shulang,17.They also visited the Chinese Academy Of Sciences and other organizations to get inspiration(灵感).
1. designed the satellite.
A. Students from Beijing Bayi School
B. Some space scientists
C. Some space experts
2.The satellite can NOT .
A. take pictures of Earth
B. send information
C. predict the information
3.The underlined phrase “settled on” means in Chinese.
A. 计算 B. 确定
C. 总计
4. helped the students build the small satellite.
A. The school
B. Space scientists
C. CCASTIC
5.What’s the main idea of the passage?
A. The first student-designed satellite was launched into space.
B. Space experts taught the students about the basic knowledge of satellites.
C. Students visited some science organization to get inspiration.
If you watch the sky for about an hour after the sun goes down, you may see some “moving stars”. But they are not really stars. They are manmade satellites. And the biggest of all is the International Space Station(ISS). From May to July is the best season to watch the ISS flying over the earth. And people can see it with their eyes during the time. The scientists want to live on the ISS. They think that the best way to learn more about space is to live there.
When the space station is finished, it will be like a city in space. People will stay and study there with many of the things they have at home. Laboratories, living rooms and power stations are being built. The ISS is the most expensive program. Billions of dollars are spent on it every year.
Scientists hope that the ISS will be a stepping stone for future space exploration. “The ISS will be more useful some day. The ISS will help us understand the human body better, explore space and study the earth. It can help us make life on the earth better,” said Kathryn Clark, an ISS scientist.
Sixteen countries are part of the space program: the US, Russia, Canada, Japan, Brazil, and 11 European countries. China isn't an ISS country, but it has helped with some of the experiments. In 2003, China sent some rice up to the ISS to find out what space would do to it.
1.From the first paragraph, we can learn ________．
A.we can't see the ISS with our eyes
B.March is the best season to watch the ISS flying over the earth
C.all the moving stars are really stars
D.the biggest manmade satellite is ISS
2.What do the scientists think is the best way to learn more about space?
A.To live on the earth.
B.To watch the ISS flying over the earth.
C.To live on the ISS.
D.To make life on the earth better.
3.China sent some rice up to the ISS to ________．
A.be used as astronauts' food
B.sell it to aliens
C.do some science experiments
D.make it grow better in space
4.From the passage we know that ________．
A.16 countries are members of the space program
B.people can see the space station with their eyes whenever they want
C.building the ISS is only for scientists to live there
D.scientists can do anything on the ISS now
5.Which of the following is NOT mentioned in this passage?
A.The ISS will be more helpful some day.
B.China will join the ISS in the future.
C.The ISS costs plenty of money every year.
D.Laboratories，living rooms and power stations are being built on the ISS.
The rockets take astronauts and man-made satellites into space. The satellites are used for communication, weather monitoring and research. But how do satellites stay up without falling down?
There are two opposite forces (力量) acting on the satellite. One of them is the force of gravitation (地心引力), which tries to pull the satellite towards the earth. The other force is created by the rotation (旋转) of the satellite around the earth. This force tries to take the satellite away from the earth. With these two forces, the satellite goes round and round. The gravitational pull of the earth (the force which pulls everything towards the ground) is like a rope which keeps the satellite from flying away.
Everything that goes up has to come down. It is only a matter of time before a satellite comes back to the earth. As time goes by, the satellite loses its speed, which makes the gravitational pull stronger than the force pulling it away. This makes the satellite crash (坠落) down to the earth.
1.Which of the following uses of satellites is NOT mentioned?
A.communication
B.monitoring the weather condition
C.doing some research
D.taking pictures
2.The force that pulls the satellite towards the earth is created by ________.
A.the earth
B.the satellite itself
C.the rotation of the satellite
D.the rope
3.Why can’t the satellites fly away?
A.Because of the force from the earth.
B.Because the satellite is too big.
C.Because of the force created by the rotation of the satellite around the earth.
D.Because people on earth have made ropes to tie the satellites tightly.
4.The satellite will finally crashes down to the earth ________.
A.when it flies faster
B.when its speed slows down
C.when people cut the rope
D.when there is no electricity in it
5.Which of the following is TRUE according to the passage?
A.There are four forces acting on the satellite.
B.The force of gravitation makes the satellite go round and round.
C.As time goes by, the satellite will finally fall down.
D.The satellite will stay in space forever.
Scientists are very interested in the universe and they always want to know more about it.Years ago they knew many things about the _______. They knew how big it was and _______ it was from the earth. _______ they still wanted to know more. They thought the _______ way was to send _______ to the moon. The moon is about 384,000 kilometres away from the earth. A plane cannot fly to the moon because the _______ reaches only 240 kilometres away from the earth. But _______ can fly even when there is no air. That is rocket.
How can a rocket fly? If you want to know, get a balloon and then blow it up until it is quite big. Do not tie up(系紧)the neck of the balloon, but let it go! The balloon will fly off through the air very quickly. The air inside the balloon tries to get out. It rushes out _______ the neck of the balloon and this pushes the balloon through the air. It does not need wings like a plane.
There is gas(气体) in the rocket. So it can fly out into _______. Rockets with men in them have been to the moon. Several rockets have already flown to ________ planet much farther away than the moon. One day, rockets may be able to go to any place in space.
1.A.star B.moon C.sun D.planet
2.
A.how much B.how long
C.how many D.how far
3.
A.So B.And
C.But D.Or
4.
A.worst B.best
C.secret D.correct
5.
A.teachers B.men
C.animals D.computers
6.
A.air B.light
C.Jupiter D.Mars
7.
A.anything B.nothing
C.something D.none
8.
A.by B.on
C.from D.through
9.
A.space B.air
C.cloud D.station
10.
A.the others B.another
C.the other D.others
—I'm afraid I have no time tomorrow.Shall we go to the seaside another day?
—________ Let's make it next week.
A.I'm sorry. B.Of course not.
C.No problem. D.Why?
