1 . Astronauts (宇航员) may soon be going to the moon again. NASA plans to build bases (基地) there. Astronauts will not be able to take all the food they will need. So they may have to grow some of it on moon farms.

But can plants grow on the moon? Maybe. That is according to a new study. Scientists used soil (土壤) brought back from the moon. They used it to grow plants on Earth. It turned out that success could depend on where on the moon you do your planting.

In the 1960s and 1970s, NASA ran the Apollo program. It sent astronauts to the moon. In the new study, scientists used soil that astronauts collected there.

Scientists put this soil in little cups. Each cup got about a teaspoon of moon soil. Other cups got Earth soil. The scientists planted seeds (种子). They watered the soil and put the cups under growth lights.

In the Earth soil, plants grew healthy leaves. In the moon soil, plants grew leaves, too. But those plants were smaller. And they were less healthy. The older the moon soil was, the worse the plants grew.

Stephen Elardo is one of the scientists. He says it still might be possible to grow plants on the moon. The key could be finding the right place. Scientists still have much to learn. But this study brings humans one step closer to calling the moon home.

What might a moon farm look like? Tyler Jones helps us imagine it. He created a model moon farm. He also used the same kinds of plants that scientists grew in moon soil. His pictures show how moon farms might work.

根据材料内容选择最佳答案。
1. What’s the background of the study?

A．The bases on the moon are being built.

B．Scientists have discovered plants that can grow on the moon.

C．Astronauts successfully landed on the moon for the first time.

D．Astronauts can’t take all the food they need to the moon.

2. What is Paragraph 4 mainly about?

A．The plan of the study.	B．The steps of the study.
C．The result of the study	D．The preparation of the study.

3. Which one shows the relationship between the age of the moon soil (x) and the plants’ growth (y)?

A．

B．

C．

D．

4. What may play a key role in growing plants on the moon according to the text?

A．The time.

B．The method.

C．The number

D．The place.

5. What’s the best title for the text?

A．Space plants	B．Living on the moon
C．How to grow plants	D．The history of moon farms

2 . 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.

3 . 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.

6 . Do you know what will happen in a weightless environment? Students attend a science lesson given by astronauts on board China’s Tiangong space station on Wednesday, March 23, 2022. Zhai Zhigang, Wang Yaping and Ye Guangfu, the members of the Shenzhou XIII, which was launched (发射) on October 16, appear on television screens watched by millions of students across China.

During the 41-minute lesson, the astronauts did four experiments to show physical phenomena (现象) only possible in a weightless environment, such as “liquid crystallization” and “a water bridge”. In one experiment, Wang used a toy of Bing Dwen Dwen, the mascot of the 2022 Beijing Winter Olympic Games, to show how objects fly in Tiangong. They invited the young viewers to do similar experiments to see the differences between space and land environments.

Before closing the lesson, the astronauts answered questions from students. The questions covered the life and work in space, such as how to take care of the skin and whether hot water was available. Wednesday’s event marked the third time Wang had taken part in a space lesson. In June 2013, she gave the nation’s first space lesson to over 60 million Chinese students in Shenzhou X. It made China the second country, following the United States, to have given a lesson to schoolchildren from space.

In early December, Wang gave the country’s second space lesson from the Tiangong station. The astronauts showed viewers how they lived and worked inside the space station.

“These science lessons can encourage students to explore the world of science and technology.” Shi Yi, a physics teacher, said after today’s activity, “Encouraged by China’s spaceflight achievements, my school has built a space science laboratory and the teachers give lessons about space exploration.”

根据材料内容选择最佳答案。
1. On March 23, 2022, the astronauts finished these tasks EXCEPT ________.

A．answering the questions from students

B．inviting the students to do experiments

C．doing an experiment about “a water bridge”

D．showing how they lived inside the space station

2. When did Wang Yaping give the second lecture in space?

A．In June 2013.	B．In October 2021.
C．In December 2021.	D．In March 2022.

3. Which one of the statements below is an opinion?

A．The astronauts did four experiments during the lesson.

B．Over 60 million students across China attended the lesson.

C．China is the second country to have given a lesson in space.

D．The three science lessons given by astronauts are rather meaningful.

4. Which of the following shows the structure (结构) of the passage?
(①=paragraph 1        ②=paragraph 2,…)

A．①/②③/④⑤

B．①②/③/④

C．①/②③④/

D．①②③/④/⑤

5. What kind of writing is the passage?

A．A science novel.

B．A news report.

C．A fairy tale.

D．An interview.

7 . 阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。

name   have   temperature   reach   who   and   wide   at   planet   four

What do you know about Mars? What does it look like?

Mars is the     1     planet from the sun in our solar system and     2     after Mars, the Roman god of war. Its diameter is 53% as     3     as that of the earth. Mars gets around the sun     4     a distance of about 228 million kilometers. You can tell which planet is Mars because it is bright red in the night sky. It looks like a red     5     orange ball. It’s very beautiful. But during spring and summer, the surface of Mars is covered by strong storms. The gravity on the surface of Mars is about two-fifths as strong as it is on earth. So a person     6     weighs 90 kilos on earth weighs only 36 kilos on Mars. The     7     on Mars is between -138℃ and 28℃. The air     8     only 0.13% oxygen.

It takes a spaceship about eight months     9     Mars from the earth when the two     10     are closest to each other. Scientists are still searching for more information about Mars.

8 . In many science fiction (科幻) movies, men travel to faraway stars and even fight with aliens. But are there real aliens in the universe (宇宙)? The answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope io find life signs of aliens.

Some scientists are used to using radio telescopes (望远镜) to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove (证明) that we are not alone in the universe.

But what should we do if the “alien phone” rings one day? Should we answer it? Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens. He said that the main purpose of aliens’ visiting to our solar system could be searching for our resources (资源). But other scientists think we have no need to worry. David Morrison. a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why don’t they hurt us? I think we can try to connect them.”

根据短文内容，选择最佳答案
1. ______ scientists believe there are aliens.

A．Few

B．Some

C．Most

D．All

2. Scientists have worked hard to find aliens for ______.

A．more than 50 years

B．50 years

C．40 years

D．30 years

3. What is Stephen Hawking’s opinion?

A．Aliens are dangerous.	B．Aliens are friendly.
C．Aliens can’t be found.	D．Aliens have been on the earth.

4. Why does David Morrison think we want to connect aliens?

A．Because we want to find aliens.	B．Because aliens are much smarter than us.
C．Because we want to help aliens.	D．Because aliens have many skills.

5. What the best title for passage?

A．How to Use Radio Telescope.	B．Stephen Hawking’s Idea.
C．Protect Our Earth.	D．Are We Alone?

9 . Some scientists believe that Mars is the planet with the highest chance of supporting human life away from Earth.

They believe that it’s possible for human to reach Mars by 2030. However, there are many things to prepare before this can happen.     1     Recently, scientists have sent robots to Mars to gather information about the planet.

Putting people on Mars will include (包括) planning how a person will live on Mars. At its shortest distance, Mars is 55 million kilometers away from Earth.     2     And astronauts would have to stay on Mars for over 18 months before Earth and Mars are at their closest distance again. The difficulties would include how much food and other things would be needed for over two years in space and how such things would be carried.

    3     They would need to prepare both their minds and bodies for such a long trip away from Earth. NASA set up a special research building in Hawaii. A group of astronauts stayed in this research building for 366 days. During their stay, they had to deal with what they might have to deal with on Mars.     4     They had to live with each other in a very small space. They also had to deal with the problems of having lots of time with little or nothing to do. They couldn’t receive help from people outside for the whole time they were inside.

    5     There is no doubt about it.

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．Astronauts have been the key to the plan.

B．For example, they had to be fed with bad food.

C．One day humans will be able to live on Mars.

D．Scientists must make some research on Mars well.

E．So it would take about 6 months for a one-way trip.

10 . It’s 2050. The Earth is dying, and moving to Mars seems to be the only way out for humans. A team of American astronauts begin to search on Mars. This is what the movie Red Planet begins with. Known as the Red Planet, Mars is the favorite of writers and filmmakers. Mars is the fourth planet from the Sun and the next planet beyond the Earth. Mars is the only planet whose surface can be seen from the Earth. It is about half size of our planet.

The surface of Mars is more like the Earth than any other planet. But it is further from the Sun than the Earth, so temperatures on Mars are much lower. Plants and animals can not live now on Mars. But many scientists still believe that life may have been on Mars long ago. On 6th August,1996, scientists discovered a piece of rock from Mars, which fell to the Earth 13,000 years ago. Ten years later, some scientists still didn’t accept that there was life on Mars. People may not be sure about life on Mars until a sample(样本) of life is brought back. Some further researches are being done in many countries.

根据材料内容选择最佳答案。
1. Why is the movie Red Planer mentioned?

A．To introduce the topic.	B．To advise readers to go to Mars.
C．To compare Mars with the Earth.	D．To tell stories about American astronauts.

2. What do we know about Mars?

A．Mars is as big as the Earth in size.

B．Mars is the fourth planet from the Earth.

C．The surface of Mars is similar to that of the Earth.

D．Mars is one of the planets whose surfaces can be seen from the Earth.

3. No life exists on Mars because ________.

A．it is too soft

B．it is too far

C．it is too small.

D．it is too cold

4. What did scientists find from Mars in 1996?

A．Some plants.

B．Some animals.

C．A piece of rock.

D．Some water.

5. People won’t believe there is life on Mars until ________.

A．a sample of life is brought back	B．a film on Mars is made
C．astronauts land on Mars	D．scientists move to Mars