1 . 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

2 . 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.

3 . 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

4 . 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

5 . 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

8 . 根据短文内容，从A、B、C三个选项中选出一个语法正确的答案，并把答题卡上对应题目的答案标号涂黑。

Except Pluto, there ______ eight planets in the solar system now, including Earth. By the distance from the Sun from close ______ far, they are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Pluto used to be known as the ______ planet in our solar system, and the furthest planet from the Sun. Pluto ______ in 1930, and was named by an eleven-year-old girl from England. Pluto is only half as ______ as the United States. This planet takes 248 earth years ______ around the sun. It means we need 6.5 earth days to ______ a day on Pluto. Pluto is about 40 times farther from the Sun than Earth is. Pluto is in an area of space called the Kuiper Belt ______ has thousands of small, icy objects. The temperature on Pluto is ______ low that Earth air would turn into ice soon. The gravity on Pluto is less strong than ______ on Earth. So fat persons may prefer to move there, they would weigh much less on Pluto.

1.

A．be

B．is

C．are

2.

A．to

B．up

C．on

3.

A．small

B．smaller

C．smallest

4.

A．is discovered

B．was discovered

C．will be discovered

5.

A．wide

B．wider

C．widest

6.

A．travel

B．traveling

C．to travel

7.

A．spend

B．cost

C．take

8.

A．who

B．which

C．why

9.

A．so

B．as

C．for

10.

A．this

B．that

C．it

9 . 根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。
A: Hi, Jane! I read an interesting book last night.
B: Really?     1    ?
A: It’s about a strange travel to Mars.
B: Do you think we can travel to Mars?
A:     2    . Spaceships can take us there.
B: Do you think we can live there?
A:     3    .
B: Neither do I. The gravity on Mars isn’t as strong as it’s on the earth. We can hardly stand still on Mars.
A:     4    . Sometimes it can be 80℃, but sometimes it’s too cold. The lowest temperature can be -138℃.
B: Yeah. It’s really hard for us to live there. But maybe we can spend our holidays there in the future.     5    ?
A: It will take us about eight months to get there by spaceship when the two planets are closest to each other.
B: I wish to fly to Mars some day. That must be great fun.

10 . 阅读下面短文，从短文前的方框中选出能填入空白处的最佳选项。选项中有一个为多余的。

A. into     B. when     C. away     D. without     E. of     F. from

Scientists have always wanted to know more about the other worlds in space. Years ago they knew a lot about the moon. They knew how big it was and how far it was     1     the earth. But they wanted to know more about it. They thought and thought. At last they found the only way to know more was to send men to the moon.

The moon is about 384,000 kilometers     2     from the earth. A plane can not fly to the moon because the air reaches only 240 kilometers high above the earth. Then there is no air. But there’s something that can fly even     3     there is no air. That is a rocket. Rockets can fly out     4     space. Rockets with men in them have already reached the moon. Some rockets     5     men in them have flown to other parts much farther than the moon in the universe. One day rockets may be able to go to any place.