Every time you move, three body systems work together to help you. Your skeletal（骨骼的）system works with your muscular（肌肉的）and nervous（神经的）systems to help you run, jump, sit, walk, and swim.
Your skeletal system has more than 200 bones. It is a structure that supports your body and protects your inner body parts. Even though the bones are hard, they are still living tissues（组织）.
Your muscular system is made up of all the muscles in your body. Your skeleton could not move without muscles. You also need your muscular system to keep your posture.
The nervous system is the control centre for all of your body’s organ（器官）systems. It helps you to know the changes in you and around you. It helps you to react（反应）to your environment.
All of your muscle movements（运动）are controlled by your nervous system. The brain is the centre of your nervous system. Billions of nerve cells（细胞）make up the tissues of your brain. Each day, nerve cells in your brain send and get thousands of messages to and from the parts of your body. Of course, nerve cells are found throughout the body, not only in the brain according to the knowledge you have learned in biology.
1. Which system is a structure that supports your body from the text?| A．Skeletal system. | B．Muscular system. |
| C．Nervous system. | D．Brain system. |
| A．Hard bones are living nervous. | B．Your skeletal system has 200 bones. |
| C．Skeleton could move without muscles. | D．You need muscular system to keep posture. |
| A．The muscular system. | B．The nervous system. |
| C．The skeletal system. | D．The movement（运动）system. |
| A．The brain is the centre of our nervous system. |
| B．Muscle movements are controlled by nervous system. |
| C．Nerve cells can only be found in our brain. |
| D．Nerve cells in the brain can send and get messages. |
A． | B． | C． | D． |
相似题推荐
| I. Take the medicine with water. One or two pills (片) every eight hours. Don’t take more than six pills in 24 hours. For children under six, go to ask the doctor. II. Three times a day and one pill a time. One pill before breakfast, one before 11:00 and one before sleep. Not for children under six and persons with stomachache. III. The medicine is for a person with a toothache. Two pills a time a day before sleep for adults (成人). Half (一半) a pill for children under 12. IV. Take the medicine four times a day. Four pills a time for adults with a cold. Two pills a time for children under 10. Take the medicine before each meal and before sleep. |
1. Which medicine is for people with a toothache?
| A．I | B．II | C．III |
| A．toothache | B．cold | C．stomachache |
| A．6 hours | B．8 hours | C．24 hours |
| A．5 | B．8 | C．10 |
| A．None of them are good for children under 6. |
| B．Three kinds of the medicine should be taken 3 times a day. |
| C．Three kinds of the medicine should be taken before sleep. |
【推荐2】What subject do you worry about the most at school? Many students worry about math. Some students can’t sleep well the day before a math exam. Others may feel very nervous during the exam itself. But there might be a way to make the subject less stressful.
“For people who are worried about math, posture makes a big difference,” Erik Paper from San Francisco State University told the Daily Mail. That’s right-sitting up straight can help you do better on math exams.
Scientists tested 125 college students. They asked them to do a simple math exam while sitting in a slumped over (趴倒的) posture or sitting up straight. After the test, 56 percent of students said the exam was easier to do if they were sitting up straight.
“Slumping over is a defensive posture. It can bring about bad memories in the body and brain. This can stop you from thinking clearly,” Paper said.
“Students who were not nervous about taking the math exam did not necessarily benefit from better posture. But they did find that doing math while slumped over was more difficult,” ScienceDaily reported.
Good posture isn’t just helpful for taking math exams. Sportspeople, musicians and public speakers can all benefit from better posture. When you feel stressed out, you can also try to sit up straight or stand tall. It can help you feel more certain and focus better.
1. What posture can make people feel less stressed during math exams?| A．Sitting up straight. | B．Hanging your head. | C．Lying on your back. | D．Raising one hand. |
| A．To do sit-ups. | B．To count numbers. | C．To think carefully. | D．To sit in different postures. |
| A．Protective. | B．Safe. | C．Primary | D．Fighting. |
| A．why slumping over makes exams harder to do | B．why slumping over is bad for one’s health |
| C．why some people slump over during exams | D．why people are nervous during math exams |
| A．Slump over to Take Exams | B．Sit up to Do Math |
| C．Benefit from good posture. | D．Good Advice for Better Exams |
【推荐3】Though simple and little, chopsticks are a great invention in China. The chopstick is an important symbol of Chinese culture and history. Chopsticks have a long history of more than 3,000 years in China. The recorded history of chopsticks is as early as the Shang Dynasty(商朝).
Chopsticks were pronounced “Zhu(箸)” in ancient China, while it is known today as “Kuaizi”. There are more than 200 kinds of chopsticks according to the material, including wood, bamboo, beautiful stones, animal bones(骨头) and others. Bamboo and wood chopsticks are the most popular ones in Chinese homes.
In Asia, lots of countries use chopsticks. However, Chinese chopsticks are the longest ones in the world because Chinese tables are usually bigger. For chopsticks, there are two sticks of the same shape and size. The two sticks have no relation with each other, but they can work well through fingers. When using chopsticks, there are a few things people should know. Before a meal, people put the chopsticks on the right of the bowls. It’s impolite to beat bowls with chopsticks. What’s more, don’t stir(搅动) food with your chopsticks to find what you want. This will make others feel uncomfortable.
If you are really interested in the chopsticks and want to know more about them, you can visit the Kuaizi Museum in Shanghai. This museum has collected over 1,000 pairs of chopsticks.
1. Why are the chopsticks a great invention in China?| A．It shows Chinese culture and history. |
| B．It is very simple and little in our life. |
| C．It is the most popular object in China. |
| A．重量 | B．环境 | C．原料 |
| A．there are different kinds of chopsticks in China |
| B．Chinese chopsticks are the longest ones in the world |
| C．Chinese usually use wood and bamboo chopsticks |
| A．One. | B．Two. | C．Three. |
| A．tell people how to use chopsticks |
| B．introduce a symbol of China — chopsticks |
| C．welcome people to visit a great museum |
【推荐1】From Nov 1 to Dec 10, if someone knocks at your door and wants to ask you some questions, don't be afraid. They are working on the Seventh national population census（普查）. They will ask each family about their name, gender, age, education and jobs.
China has a census almost every 10 years. The first one was done in 1953. At that time, there were about 600 million people in China. Throughout the decades, China's population has boomed. It was about 1.37 billion in 2010, according to the National Bureau of Statistics（NBS）.
For this year's census, China will send 7 million workers to visit families across the country. All residents（居民）of China will be included in the census. But Chinese citizens who have settled（定居）abroad and foreign citizens who are staying in China on either business or tourist visas（签证）will not be counted, CGTN noted.
The census is very important for every citizen," said Ning Jizhe, director of the NBS. "It will help improve infrastructure（基础建设）and public services." For example, if census results show that there are many children living in a special area, the government will know that it should build more schools there.
Scientists can also learn more about population growth from the census. In some years, the population grows faster than in others. Even in the same year, population growth is different in different places.
Scientists can use the information to figure out what causes growth in certain years and places.
This year's census is different from the past ones in one important way. For the first time, citizens will be encouraged to use smartphones and other digital tools to record their information, Xinhua reported. When a staff member knocks on your door, they will offer you an account（账号）number and a QR code that you can use to record your information.
1. When was the fifth national population census done?| A．In 1953. | B．In 1964. | C．In 2000. | D．In 2010. |
| A．开花 | B．包括 | C．生产 | D．激增 |
| A．Chinese residents who are traveling abroad. |
| B．People who have settled in other countries. |
| C．Foreigners staying in China with business visas. |
| D．Foreign tourists staying in China for over a month. |
| A．How scientists will use the census to do research. |
| B．How people should prepare for the census. |
| C．How people can take part in the census. |
| D．Why it is important to do the census. |
Nowadays, we have kinds of technologies to protect us from different disasters. We even know where and when some disasters, like the typhoon, the flood. While most of the new technologies are far away from us, some around us can help people in disasters.
The drone (无人机) is one of them. It can be used to send food, water when a natural disaster happens. Very often the buildings are too dangerous for rescue (救援) teams to get in. They can make the drone fly into the buildings to search for those who are still alive first. They are also becoming a useful tool for firefighters, helping them find and fight wildfires. In some faraway places in the world, drones are the fastest way to send medicine to people who are in great need of it.
Social media is also a useful tool when it comes to natural disasters. With its help, people can know about the natural disasters before they hit. And some social media platforms allow people to mark themselves as safe after disasters, so others can know their situations.
Social media is also a place for up-to-date news, so people can learn what is going on in the disaster areas. Besides, many social media platforms allow people to donate money to help people in disaster areas. The money will help them get back to their normal life as soon as possible. For example, livestreaming (直播) helped raise a lot of money for Henan after the flood in 2021.
Although these technologies can help when there is a natural disaster, we still need to prepare necessary tools and learn important skills to protect ourselves.
1. According to the writer, the drone can fly into dangerous buildings to ________ after disasters.| A．call rescue teams | B．send food and water |
| C．search for people alive | D．remind people of danger |
| A．social media can provide up-to-date news |
| B．social media can help raise money after a disaster |
| C．people can know about coming disasters on social media |
| D．people can tell others they are safe through social media |
A． | B． | C． | D． |
| A．It tells readers what to do when disasters come. |
| B．It advises readers to use social media more often. |
| C．It tells readers how some technologies help in disasters. |
| D．It asks readers to learn necessary skills for natural disasters. |
【推荐3】Do you choose to watch a happy movie or a sad movie when feeling sad or down? I advise you not to watch a happy movie. A sad movie may be right for you.
Scientists at Ohio State University, the US, have found that sad movies can make people happier. They published (刊登) their study in a magazine called Communication Research.
Scientists asked some college students to watch a sad movie called Atonement. The movie tells a story of two lovers who were separated (分离的). They died during World War Ⅱ at the end of the movie. The college students answered questions from the scientists before, after and three times during the movie because the scientists wanted to know about the students’ different feelings, including the feeling of sadness.
The result showed that people felt better after watching the sad movie. Scientists believed that it was because the movie made the students think about their own lives. Compared with those unlucky lovers in the movie, they thought their life was full of hope.
“I want to live my life to the fullest, and this movie has made me think a lot,” one student wrote.
Silvia Knobloch-Westerwick, the leader of the study, explained that bad feelings would make people more thoughtful. ”Good feelings are generally a sign that everything is fine. You don’t have to worry, and you don’t have to think about problems in your life,” she said. ”But bad feelings, like sadness, make you feel terrible about your situation. So seeing a sad movie may make you feel bad at first, but that will cause you to think more about your own life and then you will value it more and finally feel much happier.”
1. How does the writer introduce the topic?| A．By telling a moving story. | B．By giving some numbers. |
| C．By asking a question. | D．By showing some examples. |
| A．How the scientists did the study. | B．Where the scientists did the study. |
| C．Why the scientists did the study. | D．When the scientists did the study. |
| A．Happy movies can make people feel even happier. |
| B．Sad movies can make people feel even sadder. |
| C．Sad movies can cause people to think more and feel happier. |
| D．Sad movies can make all the people’s bad feelings disappear. |
| A．Festivals and celebrations. | B．Movies and feelings. |
| C．Sports and health. | D．Science and technology. |
| A．Think about Others When Feeling Down | B．Watch a Happy Movie When Feeling Bad |
| C．Develop a New Hobby When Feeling Bored | D．Watch a Sad Movie When Feeling Sad |
