When students get bored with the boring classes in the classroom, the practical classes in the lab help them relax. There, students can get hands-on experience about the lessons they have learned. High school students are allowed to do the basic experiments (实验) of different subjects of science, mainly physics, chemistry and biology. However, lab safety matters. Lab safety rules are mainly about personal safety and proper ways to use instruments to avoid accidents inside the lab.
Middle school is the first chance for students to work in a science lab. Lab experiments are carried out with great care. And the students are always told to follow the instructions to make sure of lab safety. Firstly, you must be careful of your personal safety. While doing experiments, you should be dressed in protective things, like gloves, safety glasses and caps. Since you are dealing with the instruments or the chemicals (化学制品) for the first time, you might be curious to try something new. But such activities often lead to lab dangers. So, avoid any kind of carelessness.
There are different types of instruments inside a science lab. Physics labs are filled with different electrical instruments, which need safe using steps. So you need to do the experiments under the supervision (监督) of your teachers until you are good at them. Don’t mix the chemicals as you like. It might cause danger. Also you should always keep a biology lab clean to avoid pollution.
You are new to the lab and it is your duty to learn about the lab completely. You should learn about the correct using steps of expensive instruments. Turn off the gas as soon as you finish your experiments. You also should learn about where the fire extinguisher is and the working of fire safety instruments.
Lab | |
Introduction | Experiments can High school students have chances to do experiments in physics, chemistry and biology. You have to keep yourself safe by |
Personal safety | Don’t be |
Safe operation | Do the experiments under your teachers’ supervision. Don’t have the chemicals mixed because it might be Keep a biology lab clean so that it won’t be |
Don’t leave the gas Learn about where the fire extinguisher is and the working of fire safety instruments. | |
相似题推荐
Popcorn, the Perfect Snack
Pop! Pop-pop! Fresh popcorn is one of the most popular foods when people are watching a movie or a ball game. It is delicious, cheap and easy to make. Popcorn may just be the perfect snack.
Not all corn pops. There is a tiny amount of water in corn kernels (玉米粒). When the corn kernel is heated the water in it turns to steam. In some corn the steam goes out through the outside cover. In popcorn the steam can’t get out. Pressure builds up until ... pop!
Popcorn has been around for thousands of years. Back then, people made popcorn by putting corn kernels on red-hot stones near a fire. Popcorn was not always eaten whole as it is now. Instead, people made the popcorn into a type of flour (面粉) and then added water to make bread.
The first poppers (爆米花机) were invented in the 1880s. These machines heated the corn with steam. Later these popcorn poppers were put into small wagons(车) and pulled to different places. Popcorn was sold at carnivals (狂欢节), parks and state fairs. People could not get enough of it!
Soon movie theaters began selling popcorn too. This started the tradition of eating popcorn at the movies. At this time popcorn became more popular than ever. For a short time though, people began eating less popcorn. In the 1950s, television was still very new. Many people stayed home to watch television instead of going to movies. Few people owned popcorn poppers. Then microwave ovens (微波妒) were invented. It became easy to make popcorn at home. Americans started to eat more popcorn again — more than one billion pounds each year!
1~2题完成句子；3题简略回答问题；4题找出并写下第一自然段的主题句；5题将文中画线句子译成汉语。
1. People made popcorn by putting corn kernels
2. The first poppers were invented
3. What happens in the corn kernel when it is heated?
4.
5.
【推荐2】Do you have trouble getting into sleep? Have you ever tried to find what is making you awake after midnight?
Grey may be the popular decor(装饰) color of the moment, but painting your bedroom grey actually stops you from falling asleep easily. Besides, reds, greens and purples can prevent a peaceful night’s sleep according to Natalie Armstrong, a sleep expert at mattress(床垫)company Sealy. She gives reasons.
★ Grey is usually used to represent(代表) sadness and loneliness, and it can send sad messages to our brain.
★ Too bright colors can put your brain into a state of high excitement, which can last long after you’ve turned off the light.
So what color is good for sleep? Blue. 如果你正打算粉刷卧室的墙，蓝色是最好的选择。Blue is easily received by certain cells(细胞)in your eyes. The cells then send a message directly to your brain, telling that you’re in a peaceful environment where you can fall asleep easily.
As we all know, smart phones can stand in the way of sweet dreams. Holding your smart phone or watching your favourite TV show in bed can put you in another “blue”environment. However, these blue lights are harmful, because they disturb(扰乱)our regular sleep-wake cycle and hurt our eyes.
Anyway, the color of bedroom walls is not the only and main reason to influence our sleep, but it really makes a difference. It is important to develop a good and healthy sleeping habit.
1. Please translate the first underlined sentence into Chinese.2. Why can bright colors prevent a peaceful night’s sleep?
3. Please translate the second underlined sentence into English.
4. How do blue bedroom walls help us have a good sleep?
5. The underlined word “they” refers to “
6. What else do you think can cause sleeping problems?
【推荐3】A museum is a good place to keep old and beautiful things. A museum may be a place to learn about science and a place to find out about art or people or animals.
Some museums have old cars and planes. Many museums have pictures and statues （雕像）. Others have rocks and old bones （骨头）. One museum even has a real old street inside. It has shops and people’s statues doing business. It looks so real that you might feel that you are back to the old time.
Not only many cities but also some very small towns have museums. Indianapolis（印第安纳波利斯） has a children’s museum. Children do not have to pay to get in. Children often go to the museum. They like to look at the dinosaur bones. They see a white bear that is ten feet tall.
On Saturday, children can hear talks about animals and trees in Indianapolis. They see movies. They take hikes. They even learn to make things there.
Museum—A Good | |
| Things inside a museum | Old cars and |
| The feeling you have in a museum which has a real old street | Feeling that you |
| The places where the museum lies | In |
| The activities that children are | Hearing talks, seeing movies, taking hikes and learning to make things. |
【推荐1】Students at Sanhe Township Primary School enjoy playing soccer. It is art important part of their school life. Every student at the school has a soccer lesson once a week. Students of all age groups play soccer matches every month.
The school is in the mountains and has poor teaching resources. Most of its students are left-behind children, and very few of them can go to high school or university. To help students have a good future, ten years ago, Sun Xiaoming, the headteacher of the school, set up a girls’ soccer team. He picked 20 girls from the fourth and fifth grades and offered them free training, clothing and meals at school.
Primary school students are short and thin, so it’s difficult for them to play basketball or volleyball. But soccer is different. It is cheap and easy to learn. Students can play it by a team on the playground, or practice it alone at home. For these reasons, soccer is the perfect choice for the students.
The students really love soccer. They keep practicing every day. Many of them play it well. Some of them get into great middle or high schools. Some of them make it into soccer clubs and become professional players.
Soccer is not just a simple sport. More importantly, it means a chance to help those students get out of the mountains and live a better life.
根据短文内容，回答下列问题。1. How often do the students have a soccer lesson?
2. Where is Sanhe Township Primary School?
3. When did Sun Xiaoming set up the girls’ soccer team?
4. Why is it difficult for primary school students to play basketball or volleyball?
5. What does soccer mean to the left-behind children?
[1]Students from Taizhou Middle School, Jiangsu Province experience farming during their labor(劳动) course. As we all know, the life skills ①________ cooking and painting are important and they have been part of labor education.
[2]On June 3, 2020, the Ministry of Education (MOE) (教育部) gave a document (文件) showing the revised curriculum(修改后的方案) for senior high schools across the country. Labor education includes(包含) housework, school labor and community voluntary(志愿的) services and so on.
[3]“Labor education must be carried out(实施) with the purpose to make the right view(观点) of the world, life and values and develop ②________ interest in doing chores”, said Vice-Minister of Education Zheng Fuzhi.
[4] According to China Youth Daily, the labor course will take six credits(学分) the same as foreign language and physics. Voluntary service, as part of labor education would take two credits. The MOE also asks schools to make sure 40 hours of voluntary service during the full three school years.
[5] According to Xinhua, adding labor education was out of care that the country’s young people do too little housework and that they think labor jobs aren’t important. Because of a lot of school pressure, schools pay more attention(更多的关注) to the course of education and parents may think that the chores waste their kids’ time.
[6] According to a survey, middle school students in China only ③ ________ 12 minutes a day on chores, while 72 minutes in the US, 42 minutes in South Korea and 30 minutes in France. However, doing housework does not distract(使分心)young people. Instead they are necessary for developing a strong working spirit, according to Julie Lythcott-Haimsthe writer of How to Raise an Adult. “The earlier you started, the better...”, he said.
1. What does labor education include? (No more than 15 words)2. How many credits will labor education take? (No more than 5 words)
3. Why was labor education added? (No more than 20 words)
4. Fill in each blank with one proper word.
①
5. Translate the underline sentence in the fifth paragraph into Chinese.
6. Labor education has been part of our school education. What do you think of labor education? And how can we develop labor skills or spirits?
Starting from the coming fall term, students in primary and middle schools will have at least one lesson every week to learn simple but necessary housework skills. Labor(劳动) lessons mainly cover housework chores, productive labor and services. The lessons are good for students’ character.
Primary school students in first and second grades need to do simple but necessary cleaning, wash vegetables and peel fruit, and learn to raise one or two kinds of plants or small animals. Third and fourth graders should clean their classrooms, wash their underwear(内衣), socks and shoes, and know how to make cold dishes. Fifth and sixth graders should know the skills of cooking two or three common dishes. For middle school students, they are encouraged to cook three or four dishes by themselves, learn how to make one or two kinds of traditional handicrafts(手工艺品) and experience one or two types of new technologies, modern service or volunteer work.
People welcome such lessons and say it’s necessary to teach young students housework skills. Yang Jianping, a mother of a first grader in Beijing, says she supports teaching students such lessons, because they can help students learn some necessary labor skills. Her son’s head teacher asks the students to clean the classrooms. She likes it very much.
1. How many labor lessons will the students have every week in primary and middle schools?2. What do the labor lessons mainly cover?
3. Are the labor lessons the same for the students of different grades?
4. Why does Yang Jianping support teaching students labor lessons?
5. As middle school students, what kind of labor activities should you do? (List 2 examples)
Rules tell you what you are allowed and not allowed to do. Generally speaking, there are four kinds. The first one is the instructions that one person has to follow in the given order. The instructions can lead him to a certain goal. The second one is the orders that have been passed down from one generation (代) to others. The third one teaches people how to behave well so that they can meet good results. The fourth one is the plans that are used in a certain way to increase the chance of reaching a special goal.
Rules play an important role in our society. They help build a harmonious (和谐的) relationship. If every person was allowed to do as they wanted, we would probably meet killing, stealing and something terrible like these. The rules can surely prevent such things happening. Rules can also help keep people safe. For example, we all know that if there were no traffic rules, there would be more accidents. What’s more, rules can help build a more serious environment. It is a rule that students should wear uniforms in almost all schools. But what would happen if there was no such rule? Students would care more about what they look like!
However, rules need to be used correctly. One should offer learning experience so that people are glad to accept rules. Also one should offer people rules in a simple and clear way. After that, one should tell them the possible results if the rules are not followed.
In a word, following rules is a useful way to bring you happiness, or at least, a peaceful life. However, it is important to choose the proper ones.
1题完成句子；2、3题简略回答问题；4题找出并写下第二段的主题句；5题将文中画线句子译成汉语。
1. The first kind of rules refers to
2. Why do people follow the third kind of rules?
3. How many advantages of rules are mentioned in the passage?
4.
5.
Nowadays, many people in China and Japan are racing against time. They put a lot of value in “being on time”. However, in some countries of the world, people have different opinions on “being on time”.
Germany
Thanks to its industrial past, in Germany you are expected to arrive at least ten minutes earlier for any planned meeting. In Germany, being on time is risky enough because your hosts will probably already be there waiting, wondering how on earth you could be so stupid. What will you do if anything unexpected happens, like heavy traffic or a sudden rain? So remember to arrive early in Germany.
Saudi Arabia
Some countries care little about time and Saudi Arabia is one of them. It’s because of their long history of desert living where time is not the first thing to think about. It could be that it’s too hot to do anything on time. So don’t expect them to be on time. Moreover, looking at your watch during an event is even considered as bad manners. So don’t get angry with them, either.
Ghana
Most meeting times can be changed, even if an exact time is given. Ghanaians are very easygoing. They think that if everyone is late, then no one is late. After all, what can’t be done today can get done tomorrow. If you find it difficult to deal with, prepare to be unhappy.
Russia
Patience is considered a very important quality in Russian culture but being on time is not. When doing business in Russia, do be on time. Otherwise, it will be considered disrespectful. But Russians won’t hold themselves to the same standard. So, again, patience can be key.
| How differently people | |
| Different opinions on “being on time” | |
| China and Japan | ● Both Chinese and Japanese think it valuable to be on time. |
| Germany | ● ● You are thought to be |
| Saudi Arabia | ● Time is not the ● Looking at your watch during an event is considered to be |
| Ghana | ● Ghanaians think that if everyone is late, then ● Most meeting times can be changed. You might be unhappy if you can’t |
| Russia | ●Be patient in Russia because it’s a very important quality in its ●While doing business in Russia, you should be on time, though Russians are not strict with |
【推荐3】On Feb. 19, Beijing Municipal Education Commission(教育委员会) released a notice that asked all local primary and middle schools to include rules regarding smartphone usage in campus management(日常管理).
Many schools have taken measures to limit students’ phone use on campus. According to Zhou Dandan, an English teacher at Beijing No. 20 High School, every classroom in her school has a deposit box(储物箱) to store students’ phones during class.
Before the new regulation(规定), she noticed that many students were lost in their phones. Some even played games on them during class. Zhou said that most students lack self-discipline(自律). Spending too much time on the phone will distract(分心) them and prevent them from learning, she added.
Li Jisen, an 18-year-old boy from Beijing 101 Middle School, agrees with the new policy. “In general, there are more advantages than disadvantages,” he said. Li believes that regulating phone use at school is the only way to put the focus back on study.
Kathy Chen, a parent from Shanghai, allowed her daughter to take her phone to school. Chen said it’s more important to train kids’ ability to self-manage and develop good habits of phone usage.
1. Is Zhou Dandan an art teacher at Beijing No. 20 High School?2. How old is Li Jisen?
3. Why did Kathy Chen allow her daughter to take her phone to school?
4. Do you think it’s good to train kids’ ability to self-manage by allowing them to take the phones to school? Why or why not?
“Make-A-Wish” is one of the world’s most well-known charities (慈善机构). It makes wishes come true for children who have serious illnesses. It gives them hope and joy and helps them forget about their health problems and have fun.
It all started in 1980 in Phoenix, Arizona. Christopher was a 7-year-old boy who was very sick. He always dreamed of becoming a police officer. Tommy Austin and Ron Cox, two police officers, made his wish come true. They gave Christopher a tour of the city in a police helicopter (直升飞机) and made a real police uniform (制服) for him.
There are four kinds of wishes children usually have:
I wish to go. Children usually want to travel or go to a concert, a game or a park.
I wish to meet. Children sometimes want to meet their favorite actors, singers or players.
I wish to be. Some children wish to become actors, singers or police officers.
I wish to have. They often want to have a computer, a game, a bike or many other things.
Let’s hope more wishes will come true in the future. People who work in the charity always try for the best. Almost 25,000 volunteers (志愿者) help, work or give money. Will you be one of them?
1. What kind of charity is “Make-A-wish”?2. What did the two police officers do for Christopher?
3. Which kind of wishes does Christopher have?
4. What is the purpose of the last paragraph?
Chinese writing has a history of six or seven thousand years. Calligraphy(书法), the art of writing, is almost as old as writing itself.
In ancient times, written Chinese was first symbols and pictures. Then, they gradually became characters. Later, characters and even full sentences were written on animal bones or shells for communication.
With time passing by, a number of written forms appeared. Each had its own local style. In the 3rd century BC, the First Emperor, Qinshihuang, set the same standard for the written characters— “small seal” script. It was first used in his own state of Qin, then in the whole nation. That writing system was very important in uniting(联合) the Chinese people and culture. At the same time, Cheng Miao developed another style called “clerical” script. It used short, straight brush strokes (笔画) to write quickly. By Han times, calligraphers had created a new style known as “regular” script. From the Tang Dynasty, it became the standard form used in government exams.
Over the centuries, Chinese artists and people with knowledge saw beauty in the forms of their written language. They turned calligraphy into one of the fine arts, in which calligraphers expressed themselves. In the Tang Dynasty, calligraphy was helpful for a person to get a place in the government.
The tools of calligraphy were simple enough. What we needed were the Four Treasures of the study: a brush, ink(墨), an ink stone and a writing surface. Students of calligraphy practiced the main types of script and improved their skills by copying the works of past masters. With the increase of their knowledge and practice, they slowly developed their own styles.
The art of calligraphy reached a high point in the 4th century. At that time, calligrapher Wang Xizhi was often regarded as the greatest master. Calligraphy remains a living art form to this day. It has become part of the school courses to pass on the Chinese culture.
1. What is the Chinese meaning of “characters” in Paragraph Two?2. Why did the writer mention Emperor Qinshihuang in the passage?
3. What is the main idea of Paragraph Two?
4. 根据短文内容填空。(每空不超过三个单词)
Calligraphy is almost as old as writing itself. Calligraphers not only used it to communicate, but also as a way to
【推荐3】“How often do you do after-school activities?” If you ask students the question, most of them may answer, “I have little time to do after-school activities because I have to study hard. I don’t want to spend time doing after-school activities.” If you think so, you are wrong!
After-school activities are important and they can help us grow up in many ways. They offer (提供) us chances to practice what we learn in class. We can also learn what we can’t learn from our books. We are busy with our study in school. Many students like to stay in the classroom to study instead of going out to relax. That’s not good for their health. So, all the students should take an active part in after-school activities!
1~2题完成句子；3题简略回答问题；4题找出并写下第二段的主题句；5题将文中画线句子译成汉语。
1. Many students have
2. The writer thinks doing after-school activities is
3. What does the writer suggest (建议) students doing?
4.
5.
