1 . Last year I had a trip with my friend, Nancy. The weather was cloudy except for one night. Nancy and I sat in the field and we felt relaxed. We talked about the fantastic trip, looking at the stars. “It’s a pity we don’t know which stars we’re looking at, Jenny,” said Nancy. “I know some of them.” I answered. Nancy felt surprised when I finally finished telling her all the names I knew.

My interest in stars began when I was eight. My aunt took me to a planetarium (天文馆). A guide showed us the groups of stars and told us stories about how they got their names. The stories were wonderful.

Everyone knows we can see the stars better when it’s not cloudy, but lots of people don’t realize that a bright moon also stops us seeing very much. I always look for the Plough (北斗星), because once I see that, I can find the North Star and other stars.

I wanted to learn more about the stars, so I took a course at the club. There are so many lights in the city that we have to go into the countryside to see any stars. I’m planning to make videos about stars in the countryside. I’ll post them online for everyone to watch. My greatest dream is to be an astronaut and I wish I could have space travel.

1. How did Nancy feel after Jenny told her the names of stars?

A．Relaxed.

B．Surprised.

C．Angry.

D．Nervous.

2. When can we see the stars better?

A．When it’s cloudy.	B．When there are many lights.
C．When it’s fine.	D．When the moon is bright.

3. What is Jenny planning to do?

A．Have space travel.	B．Take courses online.
C．Make videos about stars.	D．Give a talk about the names of stars.

4. Which of the following would Jenny probably agree with?

A．Students should move to the countryside.

B．Children’s favorite hobby is to write stories.

C．The best place to watch stars is the city center.

D．A bright moon may stop people seeing the stars very much.

2 . If someone asks you, “    1    ” I think you will answer “Blue”. I’m afraid that you will be wrong.     2     It looks blue because we are looking at the blue sunlight. The sunlight is shining on little bits of dust (灰尘) in the air.

    3     I’m sure that you have asked this question, too. We know that there is air all around the world, but we couldn’t fly very high because as we go high, the air gets thinner. If we go far enough away from the Earth, we find there is no air.

Maybe we can answer some questions now. What is the sky? Where is it? It is all around the world.     4     In space, there is nothing, but only the Sun, the Moon, the Earth and all the other stars.

A．The sky is space.

B．Is the sky full of air?

C．The sky has no colour.

D．What colour is the sky?

E．There is no air on the Moon.

3 . If someone asks you, “What colour is the sky?” I think you will answer “blue”. I’m afraid that you are wrong. The sky has no colour. It looks blue because we are looking at the blue sunlight. It is shining on little bits of dust (灰尘) in the air.

Is the sky full of air? I’m sure that you have asked this question, too. We know there is air all around the world. But we couldn’t fly very high because as we go high, the air gets thinner (更稀薄的). If we go far enough (足够的) away from the earth, we find there is no air.

Maybe we can answer some questions now. What is the sky? Where is it? The sky is space. It’s all round the world. In space there is nothing, but only the Sun, the Moon, the Earth and all the stars.

1. What does the underlined word (划线单词) “It” refer to (指的是)?

A．The blue air.

B．The blue sunlight.

C．The sky.

D．The eye.

2. We can’t fly very high because ________.

A．there’s too much air in the sky	B．the high sky is full of dirty air
C．there’s no air in the high enough sky	D．the sun is too hot

3. What can we learn from the passage?

A．The sky is a big ball with air.

B．The sky is a star around the Earth.

C．In space there is nothing.

D．The sky is space with the Sun, the Moon, the Earth and all the stars.

4 . Many people believe that, by the year 2100, we will live on the planet Mars. Here is what life could be like.

First of all, transport should be much better. By 2100, spaceship can travel at half of 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 in 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 and will not be as delicious as they are today. Also, space travel will make many people feel ill.

根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使短文意思通顺、内容完整。

A．Food will not be the same.

B．First, people will have more space.

C．There will probably be no schools on Mars.

D．There is a problem for us to live on Mars.

E．It might take us two or three days to get to Mars.

6 . Humans might live on another planet one day! That seemed ________ years ago. But now the idea might come true. Stephen Hawking, a great British scientist, said that we humans only have 1,000 years to live on the earth. It means that humans will ________ to another planet in 1,000 years.

In fact, we have found one red planet—Mars. Mars is the fourth planet from the sun and it’s ________ to Earth, but it’s much colder than Earth. For many years, scientists have studied Mars.

Some years ago, they ________ robots there and wanted to find water and life on Mars. ________, they found that there is water on it. Then the idea of living on Mars looks possible.

In 2013, Dutch scientists first planned to put ________ on Mars in the 2030s. They offered (提供) people one-way tickets to go and build new homes on Mars. ________ it was dangerous, over 200, 000 people still wanted to take part in (参加).

American scientists showed another plan to get humans to Mars in 2033. They are working on building larger ________ to fly to Mars these days. They are also doing a lot of preparations to help people ________ the earth.

I believe that humans will go to Mars and have an even closer look ________ our red neighbor.

1.

A．beautiful

B．wonderful

C．impossible

D．terrible

2.

A．walk

B．climb

C．dream

D．fly

3.

A．close

B．far

C．hot

D．big

4.

A．bought

B．sent

C．made

D．saw

5.

A．However

B．Unluckily

C．Luckily

D．So

6.

A．humans

B．monkeys

C．robots

D．water

7.

A．Because

B．Although

C．But

D．When

8.

A．factories

B．cars

C．houses

D．rockets

9.

A．fly up to

B．take care of

C．look for

D．get back to

10.

A．at

B．into

C．after

D．for

7 . Have you ever seen the auroras (极光) in the sky? Cosmic radiation (宇宙辐射) creates these pretty lights in the North and South Pole areas. It seems that cosmic radiation is a beautiful gift from space. But for some people, it can be dangerous.

A 53-year-old fight attendant in South Korea, who spent about 1,022 hours flying each year, passed away due to cancer. A South Korean court connected his death to great exposure (暴露) to cosmic radiation. During his career, nearly half of his flights crossed the areas in and around the North Pole, where cosmic radiation is extremely strong.

①       Cosmic radiation from space is hitting Earth nonstop, coming from both the sun and other stars in the Milky Way.

②       Earth’s magnetic field (磁场) and atmosphere (大气层) protect us from most cosmic radiation. The magnetic field is strongest near the equator and weakest at the poles. People living at higher latitudes (纬度), like in Heilongjiang province, are exposed to a little bit more cosmic radiation than those living at lower latitudes, like in Hainan province. Also, when you go higher in an airplane, the thin atmosphere increases exposure to cosmic radiation.

③      For flight attendants crossing polar areas and for astronauts in space, cosmic radiation can create health risks. NASA reported that the radiation exposure faced by astronauts spending six months in space is the same as having 1,000 chest X-rays.

④      However, what makes cosmic radiation dangerous also makes it useful. The light speed and energy of cosmic radiation have provided wonderful ideas for treating tumors (肿瘤). Scientists can now produce man-made radiation similar to cosmic radiation. Compared to the present ways of treating tumors, it can kill tumors better with less damage to healthy parts of the body around them.

1. The death of the flight attendant is believed to have something to do with ________.

A．long flight hours	B．lower latitudes
C．strong cosmic radiation	D．a family history of cancer

2. The sentence “Luckily, our planet is well-protected.” should be put in ________.

A．①

B．②

C．③

D．④

3. Astronauts are exposed to more cosmic radiation because ________.
a. they are closer to the sun and stars       b. they are at higher latitudes in space
c. space suit cannot prevent cosmic radiation       d. there is not much atmosphere protecting them

A．ac

B．bc

C．ad

D．cd

4. What can we learn from the last paragraph?

A．Cosmic radiation is very dangerous.	B．People can produce cosmic radiation.
C．Earth is filled with cosmic radiation.	D．Cosmic radiation helps fight cancer.

8 . Venus, Jupiter, Mercury and Saturn are four major planets in the solar system. But do you know from where their English names originated? If not, just look ahead.

Venus is the sixth largest planet as well as the hottest one in the solar system. Except the Sun and the Moon, Venus is the lightest star in the sky, just like a shinning diamond. So the Romans call it Venus.

Jupiter is the largest planet in the solar system. Its surface is colorful, and it also has a planetary ring. Jupiter is the king of gods, in ancient Roman mythology (神话).

Mercury is closer to the Sun than any other planet, and it is the smallest and lightest planet in the solar system, which usually appears along the Sun. Mercury is a god that delivers messages for other gods in ancient Roman mythology.

Saturn is the second biggest planet in the solar system. Saturn’s rings are made of dust and ice. In Roman mythology Saturn is the god of time, because this planet moves slowly.

1. Venus, Jupiter, Mercury and Saturn are ________ major planets in the solar system.

A．4.

B．5.

C．6.

D．7.

2. Except the Sun and the Moon, ________ is the lightest star in the sky.

A．Saturn.

B．Venus.

C．Jupiter.

D．Mercury.

3. Who is Jupiter in the ancient Roman mythology?

A．The god of beauty.	B．The king of gods.
C．The god of war.	D．The god of time.

4. From big to small, the proper order of four planets is ________.
①Venus       ②Jupiter     ③Mercury        ④Saturn

A．①②③④

B．④①③②

C．②④①③

D．②③①④

9 . We have always been interested in the moon. 2, 000 years ago, people already knew it moves around the earth and where it would be in the sky at different times of the year. At that time, everything about the moon was learned by watching it carefully in the sky.

When scientists could use telescopes to study the moon more closely, their ideas began to change. They could see the moon was made of rocks. Most scientists thought moon rocks would be different from those on the earth. This was because they believed the moon had once been a planet that had been caught in the earth’s gravity (重力) millions of years earlier.

In 1969, moon rocks were finally brought to the earth and studied. Much to their surprise, scientists found that, except for water, the moon and the earth were made of the same things. Once again new ideas were needed for this new information.

After years of study, most scientists now think that the moon was once part of the earth. They believe very early in its history, maybe 4 billion years ago, something about the size of Mars hit the earth. This sent billions of rocks into space around our planet. These rocks slowly joined together and after many years became the moon.

In the future, though our ideas about the moon may change again, we will still be interested in it.

1. Before 1969, most scientists thought the moon was ________.

A．part of the earth billions of years earlier	B．older than the earth
C．caught by the earth’s gravity	D．made of the same things as the earth

2. What do most scientists think now about the moon and the earth?

A．The earth was once part of the moon.	B．The moon used to be part of the earth.
C．Mars will hit earth in the near future.	D．Rocks will join together to become another moon.

3. We can learn that ________ from this passage.

A．new information brings new ideas	B．scientists in the past were not clever
C．we now know everything about the moon	D．scientists are so clever that they know everything

10 . It often takes astronauts days to go to the moon. But will people live there? Will people build _______ city on the moon?

Some people think it is ________. But it won’t be easy. There isn’t ________ oxygen (氧气) on the moon. Spaceships (宇宙飞船) will need to bring oxygen from the earth. Food will be a problem, too. How will people grow vegetables? There isn’t any water, ________ scientists think that they might find some ice. The energy (能量) for the city won’t be a problem—it will come ________ the sun.

________ will go to the moon? Maybe scientists will go there. The moon is an interesting place for ________. It is never cloudy or rainy on the moon, so it is a good place ________ the stars and planets. Maybe we will build a university for them. We will probably build a hotel for ________, too. There are no beaches on the moon, but people can walk on the moon and take photos of the earth.

Will it ________ ? Maybe. But one thing is true: A visit to the moon hotel will be very expensive!

1.

A．a

B．an

C．the

D．/

2.

A．difficult

B．difficultly

C．easy

D．easily

3.

A．any

B．some

C．none

D．other

4.

A．or

B．if

C．because

D．but

5.

A．to

B．from

C．into

D．about

6.

A．When

B．Who

C．Why

D．How

7.

A．them

B．us

C．you

D．it

8.

A．study

B．to study

C．studies

D．studying

9.

A．student

B．students

C．visitor

D．visitors

10.

A．catch

B．to catch

C．happen

D．to happen