All the planets in the solar system go around the sun. There are eight planets in the solar system. Years ago, there were nine planets. Ever since Pluto (冥王星) was demoted (使降级), we’ve had just eight planets.
Some scientists have studied the farthest reaches(研究)of our solar system. They believe there might be another planet out there. They call it Planet Nine. What would Planet Nine be like? Scientists believe it could be about three times larger and ten times heavier than the earth.
If Planet Nine is out there, why haven’t we found it yet? Scientists are still reaching for it because it’s so far away. They believe it could take Planet Nine as long as 20,000 years to go around the Sun. Scientists also think Planet Nine could be as much as 10,000 times darker than Pluto.
It is very difficult to search for such a dark planet in the whole solar system. Could our solar system have a ninth planet? We hope to know the answer in the near future.
1. From the first paragraph, we can know Pluto .A.goes around the Earth |
B.was a planet years ago |
C.was not demoted |
A.three times larger than the sun |
B.out of the solar system |
C.ten times heavier than the earth |
A.it’s far and dark |
B.it doesn’t go around the sun |
C.it’s large and heavy |
A.scientists are still reaching for Planet Nine |
B.it is easy to search for such a dark planet |
C.our solar system can’t have a ninth planet |
A.Solar System | B.Dark Pluto | C.Planet Nine |
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【推荐1】What’s the most important thing you need to live on? Without water, humans, plants and animals cannot live. NASA scientists have been studying Mars (火星) to see if humans could make a home there in the future. So the first thing they must look for is water.
Well, after years of studies, NASA scientists have found that there is water on the planet! But you would not want to drink it. The water would be too salty for humans to drink, but this is a step in the right direction.
“To ‘follow the water’ isn’t an easy job. We have spent such a long time on our studies,” said NASA astronaut John Grunsfeld. “Now we have science that shows what we’ve thought.”
Scientists found frozen (结冰的) water on Mars back in 2008, but for things to live on the planet, there has to be liquid (液体的) water.
The first time they thought there could be water on Mars was two years later. At that time dark long marks appeared going downhill when the temperature went up on the planet. But why do they think it is water?
“The finding of hydrated (含水的) salts means that water plays an important part in forming these marks,” said Lujendra, author of the NASA study.
What they found is too salty, so it might not be the best for living things. But this gives NASA scientists hope that there could be living things on the planet.
Do you think it might be possible for humans to fly to Mars and build another home there one day? Do you want to be a scientist who might make it come true?
根据短文内容,判断下列句子正(T)、误(F)。1. NASA scientists have been studying Mars to look for living things.
2. It took NASA scientists many years to find that there is water on Mars.
3. The dark long marks appeared going downhill when the temperature rose.
4. According to NASA scientists, salts play an important part in forming the dark marks.
5. The hydrated salts make NASA scientists hope there could be living things on Mars.
【推荐2】When we talk about the universe, we mean not only the earth, the sun and the moon, but also the stars and space between them. There are millions of stars in our sky. The sun is one of them. Around it there are eight big planets moving, including the earth. The moon is our nearest neighbour in space. If you look at the sky on a clear night, it is possible to see about 3,000 stars. They look small, but they are really very big hot balls of burning(燃烧着的) gas. Some of them are huge, but others are much smaller like our planet Earth. The biggest stars are very bright, but they can only live for a short time. Every day new stars are born and old stars die.
All the stars are very far away. The light from the nearest star (except the sun) takes more than four years to reach the earth.
Hundreds of years ago, people used stars, like the North Star, to know which direction(方向) to travel in. Today you can still see that star.
1. The universe means ________.A.the earth | B.the sun, the moon and the stars |
C.space between the stars | D.All of the above. |
A.four years | B.1,000 days | C.100 years | D.four light years |
A.when they were working | B.to tell them when to do farm work |
C.while they were travelling | D.just for fun |
【推荐3】We live on Earth. It’s our home. But how much do you know about it? Let me tell you something about our Earth.
The Earth is not flat as we see but it is like a huge sphere in the space. Like the other seven planets (行星), the Earth is running around the Sun. It’s the third nearest one to the Sun. It takes the Earth about 365 days to run around the Sun.
At the same time, the Earth is going around itself. If you are in space, you can see lots of white clouds over the surface (表面) of the Earth. Through the clouds, you can see the blue colour of the oceans, and the brown colour of the land. About 70% of the Earth is covered with water. Why do we have day and night? When the half of the Earth is facing the Sun, it’s daytime. As the Earth turns, and this half is away from the Sun, night is coming. And it’s daytime for the other half.
1. How many planets are running around the Sun?A.Seven. | B.Eight. | C.Nine. | D.Ten. |
A.ball | B.hair | C.bag | D.rock |
A.the Earth is away from the Sun | B.the Earth is running around the Sun |
C.the half of the Earth is facing the Sun | D.the half of the Earth is away from the Sun |
A.In a storybook. | B.In a science magazine. |
C.In a cartoon book. | D.In a fiction (科幻) story. |
【推荐1】Have you ever thought about your body changes? Up to about the age of eight or nine, girls and boys look quite alike. They have similar shaped bodies and their voices sound almost the same. As they grow, all their organs(器官) grow, too.
At the same time after the age of ten, often at eleven or twelve, boys' and girls' bodies start changing. This time of change is called puberty(青春期), The changes mean their bodies are getting ready so that they’ll be able to have children when they’re older.
The changes don't happen to everyone at the same time. Each person has his or her own body---changing timetable. By the time they're eighteen, they should be complete. Girls start changing some years sooner than boys, Until they're fifteen or so, they grow faster than boys of the same age. As years go by, boys can catch up and grow taller and stronger. Girls grow taller and heavier as well. Their faces and breasts become fuller. As well as all the changes you can see happening, other important changes --- ones you can' t see --- are happening inside your body at the same time.
1. Where can you read this passage?A.In a history book. | B.In a music book. |
C.In a biology book. | D.In a geography book. |
A.抓住 | B.成长 | C.向上 | D.赶上 |
A.We cannot see the changes inside the bodies. |
B.Boys start changing some years earlier than girls. |
C.Children's bodies change at the age of eight or nine. |
D.All the children's bodies start changing at the same time. |
A.Body changes | B.Growing up |
C.Boys and girls | D.The time of changing |
A big sandstorm hit Northern China on February 13. It covered many cities with thick clouds of yellow dust (尘土).
The storm, which came from Mongolia (蒙古国), was the first sandstorm to hit China in 2024. Many flights and classes were canceled because the visibility (能见度) was lower than 500 meters.
The storm was the result of warm and dry weather in the area, together with the strong winds from Mongolia. “There has been little rainfall so far this spring and the temperature is rising. So now is a worrying time for sandstorms,” said an expert from Beijing.
In recent years, sandstorms haven’t been as common in northern China as before. The land with desertification (荒漠化) has been falling by 7,585 km² per year in China, and the area of sandy land has been decreasing by 1,284 km² a year. This is thanks to China’s Three-North Shelter Forest Program (TNSFP,三北防护林工程) which started in the 1970s. Millions of trees have been planted in northern China to prevent sandstorms and protect the environment.
Besides, China has a color-graded warning system (预警系统) for sandstorms (as shown in the picture), with red meaning the most serious, followed by orange, yellow, blue and green. Therefore, people would have time to get prepared for the sandstorm.
1. According to the passage, the sandstorm in February ________.A.covered many cities with rain | B.came from Northern China |
C.was the biggest one in 2024 | D.came with poor visibility |
A.results | B.causes | C.history | D.areas |
A.Going down. | B.Rising up. | C.Taking up. | D.Running out. |
A.red | B.orange | C.yellow | D.blue |
A.how to help people get prepared for sandstorms | B.why people should protect the environment |
C.how to protect ourselves during sandstorms | D.what China did to fight against sandstorms |
【推荐3】In recent years, large-scale (大规模的) tree plantation programmes are a popular way to deal with the climate crisis (气候危机).These trees, they store lots of carbon dioxide from the air. They give us oxygen we breathe. And there’s no doubt that the right trees in the right place is a good thing. However, large-scale tree planting is becoming a problem.
Yatir forest is Israel’s largest forest. But the four million trees are actually having a warming effect on the planet. And the bright desert surface reflected (反射) more sunlight than the present darker tree canopy (树冠) that replaced it. This forest is making global warming worse.
What the Yatir forest warns us is that choosing the right location is very important. The wrong location can also use up groundwater and dry up streams. Choosing the right location isn’t the only challenge for large-scale tree plantations. Most of the time, these tree planting programmes choose one type of trees. They are bad for biodiversity (生物多样性).
Another big problem is planting the wrong type of trees. In South Africa, the introduction of new types of trees has led to covering large areas of land. The country now spends millions of pounds clearing the trees every year.
So, protecting the forests would be a better use of our time and resources. We should allow space around the forests for them to naturally expand. And it’s the best way to get more trees on the planet. One place where planting trees is good is in the cities. Trees help reduce noise, improve air quality, help prevent flooding, and even improve your physical and mental health.
There is no one solution to the climate crisis. We have to use all the tools at hand to reduce greenhouse gases and slow down global warming.
1. The underlined word “replaced” in Paragraph 2 probably means ________.A.解释 | B.解决 | C.取消 | D.取代 |
( ① = Para 1 ② = Para 2... )
A.①//②③④⑤//⑥ | B.①//②③④//⑤⑥ |
C.①②//③④//⑤⑥ | D.①②//③④⑤//⑥ |
a. Choosing the wrong location b. Planting trees in the big cities
c. Planting the wrong type of trees d. Choosing only one type of trees
A.abd | B.abc | C.acd | D.bcd |
A.to call on people to take action to protect the environment |
B.to ask more people to plant more trees in their daily lives |
C.to warn people to choose the right location to plant trees |
D.to remind people to pay much attention to their health |
【推荐1】Have you ever seen this photo? The girl in the photo named Su Mingjuan is known as "Big Eyes". The photo was taken in 1991 when she was seven, by a press photographer(摄影记者) called Xie Hailong. The photo shows Su at her desk with a pencil in the hand in a primary school. It made a strong influence and caused more support( 支持) for Project Hope( 希望工程 ).Su Mingjuan comes from Anhui Province. Her family was so poor that she could hardly go to school.
With the help of Project Hope, she was able to go on studying. She studied very hard and did quite well in her lessons. In 2002 she passed the National College Entrance Examination(高考). And she went to study financial (金融的) science at Anhui University. Now she works in a bank (银 行). Su Mingjuan is lucky. Project Hope changed her life.
1. The photo was taken when Su Mingjuan was .A.at school | B.at home | C.in the field | D.in the street |
A.影响 | B.碰撞 | C.打击 | D.感化 |
A.15 | B.18 | C.20 | D.22 |
A.Su is studying at a university now. |
B.Su is known because she is a beautiful girl. |
C.Su is so poor that she can go to school. |
D.It’s Project Hope that has changed her life. |
A.a story of a beautiful girl | B.how unlucky the girl is |
C.how Project Hope helps poor children | D.an excellent photographer |
【推荐2】Mike and his aunt live in the same city. On weekends, Mike often goes to see his aunt and his cousin, Kitty. Kitty is a girl of five years old. Mike likes her very much. He usually goes to visit them on his bike, because he doesn’t like taking buses.
Today is Sunday. He goes down Long Avenue. There are many stores, a big supermarket, two banks, two post offices and a library along the street. He is a little hungry, so he has a hamburger and some French fries in the KFC at the end of the street.
Then he turns left and starts to go down Sixth Street. There is a school and a bookshop on the right. Mike buys two picture books for his cousin. Then he goes on. Fifteen minutes later, he turns right and goes into a small street. There are some buildings on the left side of the street. His aunt lives in the yellow building.
1. Kitty is Mike’s _________.A.aunt | B.cousin | C.friend | D.classmate |
A.bus | B.taxi | C.bike | D.car |
A.KFC | B.bank | C.supermarket | D.library |
A.the library | B.the school | C.the bookshop | D.the post office |
A.Long Avenue | B.Sixth Street | C.a small street | D.Fifteenth Road |
【推荐3】Hello! My name is James Brown. I'm 13 years old and I am a student at the National School of Music in Leeds. Classes start at 8:30 every morning and finish at 3:30 in the afternoon. I have many school subjects like English, math, science and many other subjects, but music is my favorite one. I really love music.
Christina Turner is my music teacher. She is a very tall woman and a little fat. She has short, curly and brown hair, a big nose and a big mouth. Her hands are so big! And she wears glasses. She is not very beautiful. But she's the nicest person I know! She’s funny and likes telling us stories.
She is always in a good mood(情绪),trying to do the best she can----she teaches different kinds of music. When we need help, she will always be there for us. She is my favorite teacher---- she's simply the best!
1. James' classes usually start at___________________.A.7: 30 am | B.8: 30 am | C.3: 30 pm | D.4: 30 pm |
A.music | B.English | C.science | D.math |
A.She is short and fat. | B.She is very beautiful. |
C.She has short, curly and brown hair. | D.She has a big nose and a small mouth. |
A.James is eleven years old. | B.Christin Turner is an English teacher. |
C.James likes his music teacher very much. | D.Christina Turner is always in a bad mood. |
![](https://img.xkw.com/dksih/QBM/2021/3/23/2684279265697792/2684323846127616/STEM/18772caabf4b43caa7796a5d8fbf1c6d.png?resizew=458)
1. The material above contains the following information EXCEPT ________?
A.how to kill time | B.how to lose weight |
C.what to say during job interviews | D.how to deal with health problems in winter |
A.a five-year-old kid | B.a housewife |
C.a college student who wants to look for a job | D.an officer worker |
A.a type of newspaper | B.a science book | C.a poster about food | D.a bestselling magazine |
【推荐2】
GONE WITH THE WIND Author: Margaret Mitchell ¥25 (in bookstores) ¥18 (online) Gone With the Wind is a best-seller, which tells a story that happened in the American Civil War(美国内战). Scarlett O’Hara is a woman in the story who is full of energy. She is strong and saves her family but is very selfish at the same time. | ||
A LITTLE PRINCESS Author: Frances Hodgson Burnett ¥18.3 (online) Motherless Sara Crewe was sent home from India to school at Miss Minchin’s. Her father was very rich and she lived a rich and comfortable life. Then her father died and Sara lost everything. She had to learn to do with her changed life. Her strong character made her able to fight successfully against her poverty(贫穷) and the scorn(嘲笑) of her fellows(伙伴). It’s an excellent book with 4 tapes(磁带) for children. | ||
PETER PAN Author: J.M Barrie ¥15 (in bookstores) ¥12 (online) It is a children’s story full of imagination and adventures(冒险), which is about Wendy, John, and Michael Darling’s adventures in Never-Never Land with Peter Pan, the boy who would not grow up. The children are happy and lovely. (with 2 tapes) | ||
UNCLE TOM’S CABIN Author: Harriet Beecher Stowe ¥20 (in bookstores) The most famous novel in American history, Uncle Tom’s Cabin talked about the struggle between free states and slave(奴隶) states during the American Civil War and is as powerful today as when it first came out 150 years ago. | ||
THE SECRET GARDEN Author: Frances Hodgson Burnett ¥35 (in bookstores) ¥30 (online) Mary Lennox, a sickly orphan(孤儿), finds herself in her uncle’s dark house. Why are so many rooms locked? Why is one of the gardens locked? And what is that crying she hears at night? Through the power of hope, friendship, and the magic of nature, the brave girl brings the house and a long-lost garden back to life. |
1. The following books have children as their main characters except __________.
A.PETER PAN | B.GONE WITH THE WIND |
C.A LITTLE PRINCESS | D.THE SECRET GARDEN |
A.¥50 | B.¥30 | C.¥42 | D.¥12 |
A.the power of hope | B.friendship | C.nature’s magic | D.her uncle |
A.there are only three books with tapes |
B.we can buy 5 kinds of the above books in bookstores |
C.two of the books are written by Frances Hodgson Burnett |
D.THE SECRET GARDEN is ¥5 cheaper in bookstores than online |
A.newspaper | B.science magazine | C.storybook | D.book guide |
【推荐3】Kids’ birthday parties are more fun than adults’ parties. You don't have to be serious and there are a few things for parents to remember when they want to have one for their kids.
Make a list. Each kid wants different kinds of parties. Write down all your kid’s ideas on a piece of paper and then get things ready according to the list.
Make invitations. Make sure you won't have the party at the same time as your child's soccer game. Make sure you write down the name of each guest. So you will know the number of things you have to prepare such as chairs and plates.
Buy something. If you go to a party store, they will have everything you need and you won't have to go to different stores to get everything ready.
You need to decide whether to buy a cake or make one. Decide what kind of food to have. Make sure to get the food ready on time.
You could have some drinks such as coke and juice. Having a small bottle of cold water is a good idea too, especially during hot weather.
1. If you don't want to forget to do things for the party, you should________.A.invite everyone | B.make a list | C.buy many things |
A.They will enjoy both the game and the party. |
B.All the children want to go to the party. |
C.Your children may come to enjoy the game. |
A.A party store. | B.A supermarket. | C.A restaurant. |
A.plan party drinks | B.invite right guests | C.plan party food |
A.Why to organize a birthday party for kids. |
B.When to organize a birthday party for kids. |
C.How to organize a birthday party for kids. |