European researchers say they have created a process that can produce oxygen from moon dust. The process could provide a major source of oxygen for humans taking part in moon exploration activities in the future. Researchers from the European Space Agency（ESA）carried out the experiments and reported their results in a study.
The team says ESA’s experimental “plant” was able to successfully produce oxygen from simulated moon dust. The dust is part of a material known as regolith, which holds about 45 percent oxygen. However, the oxygen’s form is very strange, so it is hard to produce.
ESA’s long -term goal is to design an oxygen -producing “pilot plant” to work fulltime on the moon. Beth Lomax of the University of Glasgow was a lead researcher on the project. “Being able to get oxygen from resources found on the moon would certainly be hugely useful for future lunar settlers,” she said.
The researchers reported that the process also produced some usable metal materials. ESA researcher Alexandre said the finding that a number of metals are left behind was an important discovery.
ESA and the U. S. space agency NASA are both working on plans to return human beings to the moon. NASA has set a goal for 2024, with the aim to keep humans on the moon for long periods.
Word Bank simulated仿造的；mineral矿物质；regolith月壤； lunar settlers月球移民；moon dust月尘； |
根据材料内容选择最佳答案。
1. How will the process do good to humans according to the study?
| A．By creating warm air for researchers on the moon. |
| B．By providing rocks for the production of minerals. |
| C．By testing the weight of the oxygen in the moon dust. |
| D．By offering oxygen for people doing some research on the moon. |
| A．The quality is poor. | B．The size is small. |
| C．The form is uncommon. | D．The weight is heavy. |
| A．To show the history of ESA’s pilot plant. |
| B．To show the importance of ESA’s study. |
| C．To tell the plan of ESA’s research. |
| D．To present the process of ESA’s experiment. |
| A．ESA has discovered new materials on the moon. |
| B．ESA and NASA plan to land man on the moon again. |
| C．NASA will send more astronauts to the moon in 2024. |
| D．NASA and ESA will make a study together on the moon. |
| A．A movie poster. | B．A picture book. |
| C．A travel guide. | D．A science magazine. |
相似题推荐
【推荐1】The vacation is coming. Tommy and Kelly want to go to Beijing for a visit. After looking for information about Beijing on the Internet, they made a plan for the trip. Please look at the following form.
Plan for the Trip to Beijing | |||
| How | Take K189 train on November 5th | ||
| How long | For 8 days | ||
| The hotel | Xilong Hotel | ||
| Places | The Forbidden City, The Summer Palace, Beijing Zoo | Shijingshan Amusement Park | Yansha Shopping Mall, Zhongguancun Shopping Mall, Xidan Shopping Street, Wangfujing Street |
1. How will Tommy and Kelly go to Beijing?
| A．By ship. | B．By train. | C．By plane. | D．By bus. |
| A．For eight days. | B．For seven months. |
| C．For five days. | D．For two months. |
| A．The Forbidden City. | B．Beijing Zoo. |
| C．Wangfujing Street. | D．Beijing Olympic Park. |
【推荐2】
| Notice Dear students and teachers, Because of COVID-19, all the students and teachers must do a nucleic acid(核酸) test on March 30 at our school.  ▲Testing time: Students: 1:45 p.m.—3:45 p.m. Grade seven: 1:45 p.m.—2:15 p.m. Grade eight: 2:15 p.m.—3:00 p.m. Grade nine: 3:00p.m.—3:45 p.m. Teachers: 3:45 p.m.—4:15 p.m. ▲Testing place: The Students Sports Center ▲Tips for students ·Print your “Health Code（健康码）”. ·Wear a mask at all times. ·Keep at least one meter away from others. ·After the nucleic acid test, please leave the testing place as soon as you can and go back to your classroom. ·Take some study materials with you. You are supposed to make full use of your waiting time. If you miss the test at our school, you can also do it at the local community for free or go to the hospital where you are asked to pay for the test. |
| A．At 2:30 p.m. | B．At 3:10 p.m. |
| C．At 4:00 p.m. | D．At 5:00 p.m. |
| A．2. | B．3. | C．4. | D．5. |
| A．To avoid noise. | B．To finish their homework. |
| C．To make full use of time. | D．To ask questions. |
| A．Not all the students must get tested at school. |
| B．Teachers are not asked to do the test. |
| C．You should keep at least half a meter away from others. |
| D．If you don’t do the test at school, you can only pay money to do it yourself. |
| A．In the hospital. | B．In the local community. |
| C．In the school. | D．In the labs. |
【推荐3】Boys and girls, do you have the habit of making resolutions before the new term starts? Read and have a look at the resolutions of Tony and three of his classmates.
| Name | Resolutions |
| Now, I go to school by bus every day. I’m going to move to a new house soon. It is close to school. In the new term, I’m going to learn how to ride a bicycle. And I will ride to school every day. |
| My father is a scientist and my mother works as a dentist. They are always very busy. In the new term, I’m going to help them do more housework. |
| I’m a little heavy. So in the new term, I’m’ going to do more exercise. I run for fifteen minutes every day now. In the new term, I’ll run for more than fifteen minutes every day. |
| In the new term, I’m going to take up a new hobby—cooking. My parents’ favorite food is fish. I want to cook fish for them. I am going to learn how to cook from Aunt Maria. |
1. Here are some resolutions of three students.
2. In the future, Mike will go to school by bike every day.
3. Susan is going to help her parents do more housework.
4. Tom is a little heavy so he planed to run for half an hour every day now.
5. Lucy will learn how to cook from her parents.
【推荐1】Do you know Venus (金星)? Of the eight planets, Venus is the nearest one to us. Venus was the Roman goddess of love and beauty. In Greek her name was Aphrodite. Venus and the Earth are almost the same size, and you would weigh almost the same on both planets. If you were 70 pounds on Earth, you would be 63 pounds on Venus. Venus is an “unfriendly” planet. Because of its thick cloud, you can’t see the surface (表面). In many ways, Venus is like the Earth. It has active volcanoes (火山), mountains and valleys, too. But Venus is too hot for life. It has the highest temperature of the planets in our solar system, about 480°C. Besides, the Earth lets heat out through volcanoes, hot springs. But Venus lets heat out in a different way. Venus has no moons. Scientists call Venus the Earth’s sister planet because Venus and the Earth are almost the same size. For a long time, most scientists thought that Venus probably had plants, animals, and possibly even human beings. However, because Venus is so hot, it is impossible for anything to live there.
1. Aphrodite is the goddess of ________ in Greek.| A．love and beauty | B．danger and thought |
| C．love and thought | D．beauty and danger |
| A．70kg | B．63kg | C．54kg | D．20kg |
| A．It’s the nearest planet to us. |
| B．It’s almost the same size as the Earth. |
| C．People can’t see it clearly from the outside. |
| D．Anything can’t live there. |
| A．The surface of Venus is much hotter than that of the Earth. |
| B．Venus has the same way to let heat out as the Earth. |
| C．The Earth and Venus are similar in size. |
| D．Both the Earth and Venus have active volcanoes. |
| A．The Introduction to Venus | B．The Story of Venus |
| C．Life on Other Planets | D．Planets Around Us |
【推荐2】In the universe, as we all know, there are the Sun, the Moon, the Earth and many stars. Through our geography lessons, we know the Earth goes around the Sun and the Moon goes around the Earth. We have day and night because the Earth keeps turning all the time.
Just because the Moon is closer to the Earth than the Sun, it looks much bigger than the Sun.
The Sun is big enough to give out very strong light.
| A．There are many other planets in the universe. |
| B．Big things will look smaller when they are farther. |
| C．The Moon can’t give any light at all, but it looks quite bright, too. |
| D．When our part of the Earth turns to the sun, it is day. |
| E．They look smaller than the Moon also because they are farther away from the Earth. |
| F．Astronauts have already been to the moon. |
【推荐3】Mars is a neighboring planet in our solar system. Scientists study Mars because it could hold clues that could help us learn more about life on Earth. For decades, scientists have used robot technology to better understand Mars. In December 2020, scientists introduced a group of robots named Mars Dogs at a yearly meeting.
The Mars Dog is a four-legged robot created by the company Boston Dynamics. It, along with other similar robots, can move around in ways the wheeled rovers (探测器) that explored the planet never could. Traditional Mars rovers are limited mostly to flat surfaces. However, many scientifically interesting Martian regions are only reachable by crossing very rough (崎岖的) ground or going below ground. Walking Mars Dogs are well-suited for such challenges—even if they fall down, they can get back up again. These robots can also explore underground by walking around rocks and lowering themselves into caves. They are even capable of selecting which path to take. While they do this, they collect measurements to build a map of what they see.
A Mars Dog would also be about 12 times lighter than present rovers. It would be able to travel much faster, reaching normal walking speeds of 5 kilometers per hour during tests. Compare that to the Curiosity rover that is presently exploring Mars. Curiosity rolls along the Martian surface at about 0.14 kilometers per hour.
Before going to Mars, the team members are testing the robot. They even take the robot to outdoor locations similar to Martian landscapes. Those tests show that the robots, without any help, can walk around rocks and map deep caves. “These behaviors could one day enable significant scientific missions to take place on the Martian surface and subsurface,” the scientists said at the yearly meeting.
1. What is the text mainly about?| A．Ways robot dogs walk on the Martian surface. |
| B．Robot dogs newly created for Mars exploration. |
| C．Differences between the Mars Dog and Curiosity. |
| D．Studies of Mars with the help of robot technology. |
| A．They are much lighter. | B．They travel much faster. |
| C．They are better at seeking shelter (避难所). | D．They move around more flexibly (灵活) . |
| A．Concerned. | B．Doubtful. | C．Hopeful. | D．Uncertain. |
 ENVIRONMENTAL People Throw Away Food People throw away a lot of food. The United Nations (UN) says that people throw away 930 million tons of food in 2019. Households throw away about a half of this food. Stores, restaurants, schools, or hospitals throw away the other half. The UN wants to know where the problem is. The problem is everywhere. Farmers throw away crops (庄稼). The UN finds out that 14% of food does not get to stores. People want to buy only nice fruit and vegetables. Not all fruit and vegetables look nice. People buy too much food, too. They do not eat it all. They throw it away. The problem with food is not only in rich countries. Recent reports say that the numbers for 2020 will be much worse than the numbers from 2019. From China Daily |
| A．BBC English | B．China Daily | C．CNN News | D．School News |
| A．ENVIRONMENTAL. | B．EDUCATION. | C．HEALTH. | D．TEENS. |
| A．Schools. | B．Stores. | C．Households. | D．Hospitals. |
| A．The UN will take action to stop the waste. | B．There will be much more waste in 2020. |
| C．The problem is mainly focused on some places. | D．The countries in Africa don’t have this problem. |
| A．to save food and waste less | B．not only to buy nice food and vegetables |
| C．to give away some food to the poor countries | D．the situation of throwing away food |
【推荐2】Pennal, Wales. Tornado hits north Wales
A tornado（龙卷风） has hit a farm in Pennal, Wales. It broke down trees and even lifted sheep and lambs into the air. It was thought the tornado’s winds reached speeds of up to 114 miles per hour,causing £100,000 of damage to farm buildings.
New South Wales, Australia Tree frogs come back
After being nearly ended up by bush fires two years ago, 80 spotted tree frogs have appeared again in the wild. Experts thought just 10 of the frogs lived in the wild after the fires, but thanks to a breeding（繁殖）programme their numbers are increasing.
New Delhi, India Heatwave continues
A heatwave （quite a lot of hot days） has been influencing parts of northern India since March. In some areas, including the capital New Delhi, the temperature has reached 49°C. The government warns that the terrible heat cause health problems for some people, such as the elderly.
The Philippines People rescued after Storm Megi
Rescue workers in the Philippines have been helping people after Storm Megi flooded homes, caused power cuts and broke roads. Rescue workers tried to find and save many people from flooded areas, carrying them to safety or taking them to dry land on ships. At least 167 people have died because of the tropical（热带的）storm.
1. The tornado in Pannal affected many things EXCEPT ________.| A．trees | B．sheep | C．lambs | D．houses |
| A．Tree frogs are well protected. | B．Tree frogs died out in the fires. |
| C．Only ten tree frogs lived in the wild. | D．There will be less tree frogs in the future. |
| A．The old. | B．The wounded. | C．The young. | D．The fat. |
| A．（使）烧毁 | B．建设 | C．（使）淹没 | D．守护 |
| A．One. | B．Two. | C．Three. | D．Four. |
More and more British school kids use their mobile phones to cheat(作弊)in exams. They use them to send messages to get the answers. So far this year, 1,013 students were caught cheating with mobile phones. Teachers are now teaching themselves so they can find the cheats. They also ask the students to hand the phones in before exams.
A new study shows that girl chimps(黑猩猩) are faster to use tools than boys! Experts found that girl chimps in East Africa use sticks to dig in the soil two years earlier than boys do. But they don’t know why. Girls watched their moms work, but the boys climbed trees. Yes, human girls always learn to write and draw first, but boys often run and play balls earlier than girls.
In Germany, doctors have three ways to help kids who are addicted (上瘾的)to the Internet. First, learning art — Kids learn painting or singing; Second, doing sports — Kids do swimming or horse riding. The last one is to go into nature — Kids plant flowers and grow vegetables. Doctors want kids to find other ways to have fun rather than surf the Internet.
1. How many family members did 2-year-old Ye Chengfeng save?
| A．Six. | B．Five. | C．Three. | D．Four. |
| A．send messages to each other |
| B．find their students’ cheats in exams |
| C．stop the students from using their mobile phones |
| D．ask the students to hand in their phones before exams |
| A．chimps are cleverer than monkeys |
| B．only chimps in East Africa can use tools |
| C．human boys always learn to write and draw earlier than girls |
| D．experts don’t know why girl chimps use tools faster than boys |
| A．go into nature |
| B．enjoy their school life better |
| C．become famous painters and singers |
| D．find some other ways to enjoy themselves |
①Girls learn faster than boys? ②Phone cheats ③Little hero
④No cheating! ⑤Internet cure ⑥Go into nature
| A．①⑤④⑥ | B．③④⑥⑤ |
| C．③②①⑤ | D．②③①⑤ |
One night，the leader of Scots marched (行军) his soldiers to the top of a hill. "We will rest here tonight，my men,” he said. "Tomorrow we will fight one more battle. We must win or we will die."
They were all very tired，so they ate their supper quickly and fell asleep. There were four guards on duty, but they were very tired as well and also fell asleep one by one.
The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they climbed up the hillside，taking care not to make a sound. Closer and closer they came to the sleeping Scots. They were almost at the top. A few minutes more，the war would be over. Suddenly，one of them put his foot on a thistle(蓟，一种植物). He cried out and his sudden cry woke the Scots. In a moment，they were on their feet and ready for battle. The fighting was hard but it did not last long. The Scots wiped out （消灭）the Romans and saved their country.
The thistle is not a beautiful plant. It has sharp needles all over it. Few people like it. But the people of Scotland liked it so much that they made it their national flower.
根据短文内容，选择正确答案。
1. Hundreds of years ago there was a war between ________.
| A．Roman army and North England |
| B．Roman army and the Scots |
| C．England and Scots |
| D．a brave people and the Scots |
| A．the Scots were not brave |
| B．the Roman army was so strong |
| C．the Scots did not have a good leader |
| D．the Romans had the support from the Scottish |
| A．they were sure to win |
| B．they couldn't escape from death |
| C．they would win and then they would die |
| D．they must try hard to win, otherwise they would be killed |
| A．they didn't want to wake the Scots |
| B．they wanted to reach the top |
| C．they wanted to catch the four guards first |
| D．they were afraid of the sharp needles of the thistle |
| A．it is a beautiful plant |
| B．it is fresh and lovely |
| C．it had so many sharp needles all over it |
| D．it was the thistle that helped the Scots to win the battle |
One day, a letter comes to the house. It is a letter from the prince. He will have a big party. He would like the three girls to come. The prince wants to find a wife.
Cinderella can't go to the party because she doesn't have beautiful clothes. The day of the party arrives. Cinderella met a fairy godmother. She gives Cinderella a coach, two horses and a beautiful dress. But magic will stop working at 12 o’clock.
The prince's palace is full of people. They are all happy to be at the big party. All the girls want to marry the prince. Then Cinderella walks into the palace. "Who is she?" everyone asks. "She's so beautiful," they say.
The prince sees Cinderella. He asks her to dance with him. All night long they dance and talk. The prince and Cinderella fall in love. At twelve o'clock, Cinderella runs out.
Cinderella runs and loses one of her glass shoes. She must get home before twelve. She is late. She runs into the house. Now, she is wearing her old dress again.
The prince finds Cinderella's shoe. "I know this shoe. It is that beautiful girl’s. I'll find her," he says. The next morning, he goes from house to house to find her. He goes to Cinderella's house. The two ugly stepsisters try on the shoe, but their feet are too big.
"Can I try it on?" asks Cinderella. "Yes," the prince says, so Cinderella tries the shoe on. It fits her foot. "I have found my princess," the prince says. Soon Cinderella and the prince get married. They live happily ever after.
1. Who does all of the work at Cinderella’s house?
| A．Cinderella. | B．Her stepmother. | C．Her sisters. | D．Her father. |
| A．He wants to meet new friends. |
| B．He wants to have a good time. |
| C．He wants to find a wife. |
| D．He wants to celebrate his birthday. |
| A．She doesn’t have time. |
| B．She has no beautiful clothes. |
| C．She doesn’t want to go to the party. |
| D．Her stepmother doesn’t let her go. |
| A．衣服 | B．水晶鞋 | C．马车 | D．魔力 |
a. Cinderella loses one of her shoes.
b. The two sisters try on the shoe.
c. The fair godmother makes a pair of shoes.
d. The shoe fits Cinderella’s foot.
e. The prince finds a glass shoe.
| A．c-a-e-b-d | B．c-b-e-a-d | C．a-e-b-d-c | D．a-d-c-e-b |
If you have a dream, what do you do with it? Do you try to make your dream come true? Andrew Matthews wrote a book called Follow Your Heart. It tells us it’s the biggest challenge(挑战) to make our dreams come true.
There will be many difficulties on the road to your dreams. But you must never give up your dream. Because the biggest difficulty comes from you yourself.
Everyone can make his/her dream come true. The first thing to do is to remember your dream. Don’t let it leave your heart. Keep telling yourself what you want and keep working hard. Do this step by step and your dream will come true one day.
1. Follow Your Heart is the name of .
| A．Andrew Matthews |
| B．a book about hearts |
| C．a book by Andrew Matthews |
| D．a dream |
| A．To be a man like Nobel. |
| B．To win a Nobel Prize. |
| C．To be the best student in the class. |
| D．To be a scientist. |
| A．the book | B．your school |
| C．your dream | D．you yourself |
| A．Different people have the same dream. |
| B．If you keep on, you can make your dream come true. |
| C．There are few difficulties on the road to everyone’s dream. |
| D．When you give up your dream, it will come true soon. |
