September 20th is Love Teeth Day. Teeth are important in many ways. I think our teeth need care. If you take care of them, they’ll help lake care of you. Strong, healthy teeth help you chew the right foods that help you grow. They help you speak clearly. And yes, they help you look your best.
How do we keep our teeth healthy? Here are some tips:
☆Brush your teeth at least twice a day-after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks, too.
☆Brush all of your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth.
☆Take your time while brushing. Spend at least 2 or 3 minutes each time you brush. Play a song you like to help pass the time.
☆You can also brush your tongue to help keep your breath fresh!
☆Go to the hospital and visit the dentist twice a year. The dentist will help keep your teeth extra clean and can help you learn the best way to brush.
1. When is Love Teeth Day?
| A．On August 15th. | B．Or September 10th. |
| C．On September 20th. | D．On December 20th. |
| A．Once | B．Eight times. | C．At least twice. | D．More than 4 times. |
| A．dentist | B．friend | C．teacher | D．policeman |
| A．Our teeth need care. |
| B．We don’t need to brush the back teeth. |
| C．Brush your tongue while brushing your teeth |
| D．You can listen to music while brushing your teeth. |
| A．Love Teeth Day. |
| B．How to Keep Healthy |
| C．How to Keep Breath Fresh |
| D．How to Keep Teeth Healthy |
相似题推荐
【推荐1】Microplastics(微塑料) are tiny bits or threads(线状) of plastic, often too small to be seen. In recent years, microplastics have been found almost everywhere, from the North Pole to Antarctica(南极洲), from the top of the Earth’s tallest mountain to the deepest point in the sea.
In a recent study led by a group called Ocean Wise, researchers made four trips across the Arctic Ocean. They took 71 samples(样本) from between 10 feet and 26 feet (3-8 meters) below the ocean’s surface. They took 26 more samples, some from more than 0.6 miles (1 kilometer) below the surface.
They found microplastics in all but one of the samples taken, with an average of about 40 microplastic particles(颗粒) in every cubic(立方的) meter. In the study, the scientists used a tool based on infrared light—a kind of light that humans are unable to see. This tool allowed them to figure out not just which bits were plastic, but exactly what kind of plastic they were.
Over 92% of the microplastics found were small threads, called microfibers(超细纤维). About 73% of these fibers were made of a plastic known as polyester (聚酯). The researchers looked into the size and color of the fibers and found they matched polyester used in clothing.
The study found far more microfibers near the Atlantic side of the Arctic Ocean than near the Pacific side. The fibers on the Atlantic side were also newer. The team believes this suggests that the fibers come from Europe and North America. Peter Ross, who led the research, said.“With these polyester fibers, we’ve created a cloud throughout the worlds oceans.”
Most samples were taken from an ocean layer(表层) where lots of sea life finds food. The scientists believe this means that many kinds of sea life, from the smallest to the largest, are likely to be affected by the pollution.
So how do these microfibers get into the sea? They break off when clothes are washed and are emptied into sewers(下水道) as washing machines drain(排水). One recent study suggested that laundry (洗衣) from the US and Canada carries around 3, 500,000 kilograms of plastic microfibers into the sea every year.
One way to avoid sending so much plastic into the sea is for clothing makers to reduce man-made materials, especially those that easily break down into microfibers. Washing clothes less often will also help. There are also special filters (过滤器) for washing machines which help prevent microfibers from escaping. Currently, people have to buy these filters and add them to their washing machines. If every washing machine came with such a filter built-in, it could make a big difference.
1. What do we know about the recent study?| A．A total of 96 samples contained((包含) microplastics |
| B．The samples were collected from different oceans. |
C．Half of the collected microplastics are microfibers |
| D．Almost all of the microfibers came from North America |
| A．To find a way to solve the problem of microplastics |
| B．To see what harm they did to the ocean |
| C．To design new types of tools |
| D．To know their sources(来源) |
| A．Washing clothes by hand |
| B．Making large washing machines |
| C．Using natural materials to make clothes |
| D．Cleaning clothes with certain chemicals(化学品) in water |
| A．How does pollution affect life in the sea? |
| B．Microplastics are increasing in our lives |
| C．How to protect the oceans and sea animals |
| D．The Arctic Ocean is polluted with microplastic fibers |
Put a smoke alarm in the house. Smoke from a fire causes the alarm to go off. The alarm makes a loud sound. The sound tells everyone to leave the house at once.
Make escape(逃跑) plans. They should know all the ways out of the house. If there is a fire, everyone follows the plan to get out. Part of the plan is to check all the windows to make sure they can be opened easily.
Buy fire extinguishers in the house. Everyone in the family should know how to use them.
Practise for a fire. They do fire practice because they teach children about fire safety.
Everyone in the family should know the following fire rules：
●Don't open a hot door! The fire can grow more quickly if you open the door.
●Stay close to the floor! Smoke can be more dangerous than fire.The best air is near the floor because smoke rises.
●What will you do if your hair or clothes start to burn? First, stop!
Don't run! The fire burns faster because of more air, Drop! Fall to the floor. Then roll(滚动)! Turning over and over will make the fire go out. Put a blanket(毯子) around you to keep air away from the fire that may still be on you.
There are many possible causes for fires. A wise(明智的) family is ready all the time. If there is a fire, don't forget to call 119 for help.
1. What does it mean when a smoke alarm rings at home?
| A．You have to get up. |
| B．Water is running to the floor. |
| C．Something is burning. |
| D．Something is broken. |
| A．they practise for a fire |
| B．they make escape plans |
| C．they use electrical cookers |
| D．they buy fire extinguishers |
| A．the fire will grow more quickly |
| B．the electricity will be cut off |
| C．the door will soon be on fire |
| D．the window will open |
| A．Stop, run and roll. | B．Stop, drop and roll. |
| C．Run, drop and roll. | D．Run, roll and drop. |
| A．The danger of a fire |
| B．The cause of a fire |
| C．Be ready for a fire |
| D．How to use extinguishers |
Are you worried about moving up to senior high school? Have you ever thought about how to spend your senior high school life? It is a completely new experience, but you shouldn’t be frightened. Here are some tips to help you.
You are not alone. Maybe you do not notice that everybody else in your grade is just as nervous as you are.
Organize your time. There are lots of differences between junior high school and senior high school. You will have to deal with various projects and assignments from different subjects, so make sure you are wise in organizing your time.
Avoid being late.
Make sure you get enough sleep. Going to bed early makes a difference.
| A．It is risky to start on your work a few days before your deadline. |
| B．If it is for acceptable reasons, it’s understandable to be late or absent. |
| C．Do not risk your future. |
| D．So remember that you all are in the same boat. |
| E．Your friends will help you solve them. |
| F．The teachers will help. |
| G．Some students find it hard to get up early in the morning. |
| Myopia (近视) in Children |
| How do children get myopia? ★If a child spends 7+ hours a week on computers or smartphones (手机), he may have myopia. ★Fewer outdoor activities may make the risk (风险) of having myopia higher. ★Parents who have myopia may have a myopic (近视的) kid. |
| How many children have myopia? 53.6% of the children in China had myopia in 2021. ★14.5% of the children under 6 ★36.0% of the primary school students (小学生) ★71.6% of the junior high school students ★81.0% of the high school students |
| What should children do? ★Have at least two hours of outdoor activities every day. ★Follow the “20/ 20/ 20 Rule” when they are using computers or smartphones: every 20 minutes, look at something 20 feet away for 20 seconds (秒)! ★Get enough sleep. |
1. Who may also have myopia if a girl has myopia?
| A．Her parent. | B．Her teacher. | C．Her cousin. | D．Her friend. |
A． | B． | C． | D． |
| A．20 minutes | B．60 minutes | C．90 minutes | D．120 minutes |
① Why children have myopia.
② The percentage (比例) of myopic children.
③ Advice on staying away from myopia .
④ What should myopic children eat .
| A．①②④ | B．①②③ | C．①③④ | D．②③④ |
| A．Sport. | B．Health. | C．Interest. | D．Travel. |
【推荐2】My name is John. My arms are shorter than others’, but I never think I’m different. I don’t think of myself as a “disabled” person because I feel like I can do anything I want. With the help of my parents, friends and a special program for young people with disabilities. I know how to fight for myself and how to be strong. That doesn’t mean it is always a piece of cake. I had some bad experiences, such as the way people looked at me, although most people were friendly.
When I was three, my family moved to New York where there are first-class hospitals. I missed some school because of operations. I had to work harder than others.
When I went to the seventh grade, I recovered a lot more. I also made some friends and we had a great time together. As classes got harder, life became more difficult for me. I had to spend more time remembering things, taking notes and preparing for exams. Luckily, I never failed any exams.
When I was at college, I wrote something about myself for a newspaper. It helped more people know me. Many people wrote to me. They thought I was strong to recover from over 10 operations. And I was happy to make friends with them.
1. John’s family moved to New York probably because he could _________.| A．go to a better school | B．join a special program |
| C．forget some bad experiences | D．go to a better hospital |
| A．failed an exam | B．wrote something for a newspaper |
| C．had over 10 operations | D．helped a lot of disabled people |
| A．Shy. | B．Careful. | C．Proud. | D．Strong. |
【推荐3】We do eye exercises. We wear sunglasses. We do lots of things to protect our eyes. But we usually forget another important part of our body — the ears. Ears help us hear the world. But many things, such as loud noises, can hurt our ears, even make us deaf. Once this happens, it’s hard to get your hearing back. March 3rd is Ear Care Day. So how can we protect our ears?
◆Keep your ears dry and warm
Dry your ears with a towel (毛巾) after swimming or taking a shower. If you feel water in your ear, shake your head a little bit. This can help you get the water out of your ear.
Also, when the sun is shining, wear some sunscreen (防晒霜) on your ears. During the winter, protect your ears with a hat or a scarf.
◆How to clean your ears
Usually, our ears clean themselves. The earwax (耳垢) builds up, dries out, and then comes out of the ear along with some dirt. Don’t clean your ears with anything sharp (尖锐的), or it may make the earwax go too deep into your ears and hurt them. But if your ears start to hurt, you can go to a doctor for help.
◆How to use earphones
Don’t listen to loud music on your earphones for a long time. Follow the “60 Rule”: listen to music for no more than 60 minutes a day. Over-ear (头戴式) earphones are better than in-ear ones. It will do a better job of stopping outside noise. So you can listen at a lower volume.
1. Which of the following ways is bad for your ears?| A．Using a towel to dry your ears after swimming. |
| B．Taking the earwax out with any sharp things. |
| C．Using some sunscreen on your ears in summer. |
| D．Covering your ears with a hat or a scarf in winter. |
| A．Our cars can hardly ever clean themselves. | B．We do lots of things that may hurt our ears. |
| C．The earwax may come out of our ears itself. | D．We’d better clean our ears with a doctor’s help. |
| A．Following the “60 Rule”. | B．Listening to loud music. |
| C．Wearing in-ear earphones. | D．Wearing over-ear earphones. |
| A．Why are ears so important? | B．What can hurt our ears? |
| C．How do we take care of our ears? | D．When is the Ear Care Day? |
A computer can easily beat a human at chess or even the quiz show Jeopardy. But questions that seem obvious trip them up. Read these two:
1. The trophy would not fit in the suitcase because it was too big. What was too big?
2. The father punished the son because he was so mad. Who was mad?
Of course you know the answers. But how do you know so easily? And why might a computer or robot have trouble? That’s the interesting part. There’s a lot more to these sentences than meets the eye. For example, in question 1, the word “it” can refer to either the “trophy” or the “suitcase”. You know which one is too big only because you understand that something has to be smaller than a space to fit inside.
You learned all of these facts (and many, many more) simply from being human and existing in the world. We call that type of knowledge common sense. Computers and robots don’t have it. They don’t know that rope can pull but not push, that rain makes you wet and so much more, unless we program them to know.
Early computer scientists thought they could teach computers common sense by writing code to represent every single rule about how the world works. One project, Cyc, began in 1984 and now contains over 25 million such rules. Other computer scientists have tried to use deep learning, a type of artificial intelligence, to give machines common sense through practice.
These efforts have had some success. But the rules of common sense are seemingly endless. And they often have exceptions. For example, it’s not always true that something has to be smaller than a space in order to fit. A large blown-up trophy could be deflated and folded to fit in a small suitcase. “It is still a big challenge in AI to get a machine that has the common sense of an 18-month-old baby”, says Melanie Mitchell, a computer scientist at the Santa Fe Institute.
1. At the beginning of the passage, how does the writer lead in the topic?| A．By giving examples. | B．By telling a story. | C．By showing a picture. | D．By listing numbers. |
| A．The experimental data on chemistry. |
| B．The numbers we write in the document. |
| C．The order we make when we have dinner in the restaurant. |
| D．The word “it” in “The cat ate the fish because it was hungry”. |
| A．It may take a long time to teach machines more common sense. |
| B．The machines are already as intelligent as an 18-month-old baby. |
| C．The scientists have solved the problems of common sense successfully. |
| D．It is easy for machines to understand the changes of rules of common sense. |
| A．What common sense do robots have? | B．Why do some questions trouble robots? |
| C．How do scientists teach robots common sense? | D．What kind of questions can be difficult for robots? |
【推荐2】Look around you. What do you see? Lots and lots of stuff (东西) . And it’s likely that almost all of the stuff is man-made, whether it’s a tiny pen or a huge building.
Scientists at Israel’s Weizmann Institute of Science recently made a shocking discovery about our stuff. They found that the mass of all man-made materials is now greater than the mass of all living things on Earth. That is to say, all of our stuff weighs more than the combined weight of every person, plant, and animal on the planet.
“If you didn’t believe before that humans are dominating the planet, then you should believe it now,” said scientist Timon McPhearson.
So why does this matter? For one thing, it shows how much damage we’ re doing to the planet. The more stuff we make, the more natural resources we use. Taking and using these resources damages Earth in many ways. For example, burning coal pollutes the sky and makes global warming worse. Mining for gold and other metals can pollute groundwater.
In fact, this research “shows us our impact on the planet,” according to US scientist Josh Tewskbury. Unfortunately, it doesn’t give us any specific advice on what to do other than to be careful about how we use our natural resources.
1. Scientists recently found that ________.| A．Earth is facing serious pollution |
| B．humans can’t live without man-made materials |
| C．man-made materials will take control of Earth one day |
| D．man-made materials are heavier than all living things on Earth |
| A．controlling | B．creating | C．breaking | D．polluting |
| A．how people use natural resources | B．what problems Earth is facing |
| C．how making things damages the planet | D．why people create so much stuff |
| A．We must use our resources carefully. | B．We don’t need to worry about pollution. |
| C．We should recycle when we can. | D．We shouldn’t use any man made materials. |
| A．Entertainment. | B．Fairy tales. | C．Science. | D．Advertisement. |
【推荐3】Being a teenager can be challenging, but it can also be exciting. You’re becoming more independent and making decisions for yourself. You are also learning to take risks and solve problems better than you could before. And changes are happening throughout your body, even in your brain.
You can’t see the changes in your brain, but they’re affecting how you develop into an adult. At this time in your life, there is a process going on inside your brain that makes it work faster and more efficiently. Imagine that the structure(结构) of your brain is like a big road map. There are lots of roads leading to different destinations(终点). When you were a child, as you learned new things, your brain created more and more roads leading to different destinations. By the time you become a teenager, the most important places on the map have many different roads leading to them. Now your brain’s job is to make that map more efficient. It removes the roads that you don’t need and works to make the other roads faster.
As a result, your experiences as a teenager actually affect the way that your brain develops. If you spend hours playing video games, what skills to you use? You learn to see something with your eyes and respond(回应) to it with your hands, right? As you develop those skills, your brain is making sure that the roads leading to them are especially fast and efficient. So, your videogame playing could be preparing you for a career such as a fighter pilot, or even a surgeon(外科医生).
This is a great time for you to practice new skills and discover what you’re good at and what you love doing. Go out and try different activities, and stick with them if you think they’re useful. Remember that with everything you do, you’re shaping your brain for the future.
1. Being a teenager can be exciting because ________.| A．you can see the changes in your brain | B．you’re afraid of making big decisions |
| C．you needn’t learn new things | D．you can learn to solve problems better than before |
| A．same destinations | B．a specific goal | C．different activities | D．different destinations |
| A．easy | B．special | C．helpful | D．hard |
| A．raising animals | B．cooking dinners | C．flying planes | D．giving speeches |
| A．Shaping Your Future | B．Protecting Your Brain |
| C．Improving Learning Skills | D．Playing Video Games |
【推荐1】In England, traffic keeps on the left. Cars and buses and bikes all move on the left side of the road. So when you are in England, you must be very careful in the streets. Before you cross a street you must stop and look both ways. Look right and look left and look right again. If the traffic lights are red, the traffic must stop.
Then the people on foot can cross the road. If the traffic lights are green, the traffic can go. People on foot mustn’t cross.
In the morning and in the evening, when people go to or come home from work, the streets are very busy.
Traffic is the most dangerous then.
When you go by bus in England, you have to be careful, too. Always remember the traffic moves on theleft. Have a look first or you will go the wrong way.
In many English cities, there are big buses with two floors. You can sit on the second floor. From there you can see the city very well. It's very interesting.
1. When you are in England you must remember that _____.| A．you'd better go by bus |
| B．the traffic goes on the left |
| C．the streels are very busy |
| D．there are many cars and buses on the road |
| A．the traffic lights are red |
| B．they look to the right |
| C．they come from work |
| D．the traffic lights are yellow |
| A．you may go the wrong way |
| B．there are too many buses there |
| C．there are big buses with two floors F |
| D．there are not any traffic lights |
| A．it is less dangerous |
| B．it can make roads safer |
| C．they can have a better view of the city |
| D．there are fewer passengers there |
| A．Buses in England |
| B．Traffic in England |
| C．Travelling in England |
| D．Traffic lights in England |
【推荐2】English words don’t stay the same. People need new words for new ideas and new inventions. Different words come into use, or old words are used in a new way.
English can be changed by borrowing words from other languages. The word＂tomato＂was borrowed from Mexico and＂tea＂came from China and so on. Now new space and science words are being borrowed from other countries, too. New words can be formed by adding two words together.＂countryside＂and＂earthquake＂are made up of two parts. Sometimes new words are shorter forms of old words. The word＂photo＂ was made from＂photograph＂by cutting off the end of the longer word.＂Plane＂was made by cutting off the front part of＂airplane＂. The names of people and products can become new words, too. Our＂sandwich＂was named after a man called Sandwich and＂sellotape＂(透明胶带) was a name given by the company that first made the product.
1. New English words are needed because _________.| A．people use old words in a new way |
| B．the old words are not enough |
| C．new ideas and new inventions appear all the time |
| A．Tomato. | B．Sandwich. | C．Countryside. |
| A．Tea. | B．Earthquake. | C．Airplane. |
| A．Three. | B．Four. | C．Five. |
| A．that the English language is always changing |
| B．how people name new products and inventions |
| C．how people use old words in a new way |
We have three kinds of desserts(甜点): small, medium and large. A small dessert with strawberries, bananas and ice cream is 10¥. A medium dessert with apples, tomatoes and cheese is 12¥. A large dessert with pears, potatoes and ice cream is 15¥. Welcome to our house.
Noodle House
We have some great specials. Special 1 is chicken and cabbage noodles, and the large bowl is just 4¥ and the small 2¥. Special 2 is mutton and carrot noodles, and the large bowl is only 5¥ and the small 2.5¥. Special 3 is beef and potato noodles. The large bowl is 4¥ and the small 2¥. Special 4 is tomato and egg noodles. The large bowl is only 3¥ and the small 1.5¥. Large drink is only 5¥. And all the fruits are free.
Come and get your noodles today!
1. How many kinds of desserts does Dessert House have?
| A．three | B．two | C．one | D．four |
| A．three | B．two | C．one | D．four |
______¥.
| A．26 | B．20 | C．23 | D．24 |
| A．a large dessert | B．a medium dessert |
| C．a small dessert | D．both A and C |
| A．mutton and carrot, tomato and egg |
| B．chicken and cabbage, mutton and carrot |
| C．tomato and egg, beef and potato |
| D．beef and potato, chicken and cabbage |
