Our brain is the most important part in our body. It helps us to think, speak, feel, and move. It’s no wonder we need to look after it and just like the rest of our body. We need to keep it exercised to keep it healthy.
Our brain is made up of 86 billion neurons—or nerve cells (神经元), but as we age, some of these gradually die off. In serious situations, nerve cells in different areas of the brain become hurt and finally die, leading to a condition called dementia (痴呆), which influences a person’s ability to think properly.
It’s a good idea to train our brain by learning ways to increase our memory and intelligence. For example, solving crossword puzzles (字迹) can be really helpful. Dr Catherine Loveday, who’s a neuropsychologist, thinks learning a second language is also great for the brain, as it requires us to switch (切换) between languages, making our brain stronger.
However, if you don’t speak another language, there are still ways to train your brain. If you’re right-handed, try performing tasks like brushing your teeth with your left hand to improve your brain.
The main reason we do these exercises is to keep our brain active. It can help to develop additional abilities to help protect the brain against the loss of memory or thinking. Dr Catherine Loveday, says, “Even if people take up languages or other activities later in life, it will provide them with a degree of protection.” As an old saying goes, “It’s never too old to learn.”
According to a study, people are surprised to know about that eating chocolate might increase our ability to get and use knowledge. It could improve how you learn and use information. Although it might not be good for the rest of your body, at least it could make you a brain box!
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相似题推荐
Do you know how many bones(骨头)are there in your body? When you were a baby you had about 330 bones, and now you have just over 200 bones. Because some bones join together as you grow.
The longest and strongest bone in your body is in your leg. It is strong and it carries your weight. It is also a very important bone because it helps you move. Would you believe there is a special bone called stirrup(镫骨)in your ear? Because it’s the smallest bone in your body. The bone allows the sound waves(声波)to reach your brain, then you hear the sound. Hah! The funny bone isn’t really a bone at all. It is actually a nerve(神经). That bone is called the humerus(肱骨), which sounds like the word “humorous”, meaning “funny”.
These amazing and wonderful bones not only make up our bodies, help us grow, but also allow us to move, so take care of your bones.
1. What happens to some bones as you grow?2. Where is the longest and strongest bone?
3. What does stirrup look like?
4. What should you do with your bones?
It is said that the eyes are the windows of our soul. However, you have to look after them carefully. Your eyes need everyday care.
Firstly, you have to be careful with your diet. Have more fresh fruits, vegetable, fish, egg and milk. It’ s good for your eyes. You should also take some Vitamins (维生素) A and B2.
Secondly, you must have a regular (规律的) and sound sleep. It relaxes the eye muscles (肌肉) and gives them the rest. Sleep can help the body to repair its tired tissues (组织). Usually, you must sleep for at least seven to eight hours every day. Loss of sleep can give you dark circles under the eyes.
Next, it’s necessary for you to exercise eyes every day. Blink (眨眼) your eyes at regular time, and it can give the eyeballs a good wash.
Lastly, you should use your eyes in right ways. Fox example, if a small thing goes into your eye, you start rubbing (揉) it, it is wrong. Rubbing is harmful to your eyes. Don’t read or write in poor or bright sunlight because sunlight can make eye tired. Remember to use sunglasses to stop the sunshine from shining directly (直接) into your eyes. Too much reading, writing, watching television or working on the computer can also cause eye tiredness (疲劳), so you should get relaxed.
If you always take care of God’s most beautiful gift, your will be very colorful!
The w | |
Diet | Eating food, such as fresh fruits and vegetables. It’s T |
Having a regular and sound sleep is a must. Getting at least seven | |
Eye | Exercising your eyes every day. Blinking your eyes at regular periods can It’s |
Eye using | Remember to to use sunglasses to keep your eyes You should |
You must think a computer is the best thing in the world, right? You must think it works at a super speed and can do everything? Well, it's not! In fact, the brain is much more powerful than any super computer! Think about when a glass is just about to fall off the table. Your brain controls everything that you need to do to save that glass from falling. First your eyes check out what's going on, then tell your brain, `and your brain decides how quickly you need to react, and then your muscles go into action. This is just from your brain. No computer could ever come close to that!
The brain weighs just 3 pounds; but is controls everything you do from thinking, learning, feeling even to breathing and your heart beating. Even though the brain is just 2% of your body weight, it uses around 20% of all your energy in your body. That is a lot for such a small organ (器官),There are about 100 billion tiny, tiny little cells(细胞)in your brain. There are so many that it would take you over 3,000 years to count them all!
Your brain stops growing when you're -18, but it actually keeps on developing and learning new things. So your parents are really super smart! You' won't be able to fool them! Believe it or not, your brain NEVER stops working. Even during sleep,the brain works for long-term memory establishment(建立). It is realized that the brain is the second organ in the body as the heart that never stops during human live.
So everyone should be proud of such a gift of nature.
1. Is super computer much more powerful than the brain?2. What can check out what's going on when the glass is about to fall off the table?
3. How much does the brain weigh?
4. What does the underlined word "That" refer to in Paragraph 2?
5. When will your brain stop growing?
![](https://img.xkw.com/dksih/QBM/2022/6/24/3008346817183744/3011323180711936/STEM/95ae62086d4941a48e99af8b63ddbcb8.png?resizew=93)
Governments around the world are pushing for an end to plastic straws (吸管) and bags. More and more businesses are turning to paper products as a choice. As a kind of material, paper is widely considered to be greener than plastic. However, it may come as a surprise when we find out the truth.
Firstly, paper bags and straws are made from trees. Trees, as we all know, can reduce carbon dioxide (减少二氧化碳) levels in the air. They can slow down climate (气候) change. The use of more paper bags can lead to more acts of cutting down trees.
Secondly, products made of paper require more energy and water. About 10% more energy and four times more water are used to produce a paper bag than to make a plastic one. You might say that we can use recycled paper to save that energy and water. This seems to be a good idea. However, it takes even more energy and water to go through the recycling process than to make a brand-new paper bag.
Thirdly, paper products are heavier than plastic ones. That means they require more oil to transport. Seven trucks are needed to transport two million paper bags, while to transport the same number of plastic bags, one truck is enough. Once the bags are thrown away, the increased weight also leads to a large amount of waste.
So, paper products are actually a lose-lose for both the environment and businesses. They are harmful to our planet, as well as the plastic ones. Is there anything we can do to protect our planet?
The most environment-friendly solution is to avoid single-use products. Products like glass bottles and steel straws can be reused easily. They are much more eco-friendly(对生态环境友好的) than either paper products or plastic ones. By increasing the usage of these products, we can greatly reduce the throw-away waste in our daily life and save more resources. If so, we can truly make our planet greener!
How to make our planet greener | |
Introduction | It is not |
Explanations: why using paper products isn’t a good way | Require more energy and water. * *Making a brand-new paper bag takes Require more oil to transport *Transporting two million paper bags needs *The increased weight also leads to much waste once we |
Conclusion | Paper products are actually a lose-lose for not only the environment but also businesses. Using |
Avoiding single-use products is the most environment-friendly way. We can use products like glass water bottles and steel straws Reducing the throw-away waste can help save more resources. |
【推荐2】Venus is close to the earth. It is the second planet from the sun. The earth is the third planet from the sun. Venus is similar (相似的) to the earth in size and mass (质量). It is often described as the earth’s “sister”.
Scientists have been learning about Venus for a long time. First they looked at Venus through telescopes (望远镜). But Venus is covered with thick clouds. Scientists could not see Venus well through the clouds. So they made guesses about it.
For a long time, scientists thought that Venus had water and plants. They thought Venus might have animals too. But they didn’t know for sure.
Then scientists found a way to learn more about Venus. In the 1960s, they began sending probes (航天探测器) to Venus. The probes flew through the thick clouds. They took pictures of Venus up close. They found out many things too. The probes sent the pictures and things they found out back to the scientists.
The scientists learned a lot from the probes. First they learned that most of their guesses were not right. And they learned that Venus is very hot.
After that, scientists knew they could not send people to Venus. But they still wanted to know more about it. So they sent new probes. These new probes took great pictures of the planet. The pictures showed that Venus has plains (平原) and mountains! And in some ways, Venus looks like the earth.
1. How are Venus and the earth similar?2. Why is it hard to see Venus well through a telescope?
任务二:判断正(T)误(F)。
3. Scientists began to send probes to Venus over 60 years ago.
4. With the new probes’ help, scientists found that Venus has mountains and plants.
任务三:选择最佳答案。
5. Where does the passage probably come from?
A.A diary. | B.A storybook. |
C.A science magazine. | D.A medical dictionary. |
【推荐3】Do you know how many bones are there in your body? When you were a baby you had about 330 bones, and now you have just over 200 bones. The number reduces because some bones join together as you grow. Your wonderful bones work together to protect you and support your body.
Many Uses
Many bones protect your body. For example, the bone that makes up your head is called the skull. The skull surrounds your brain and protects it, The ribs that cover your chest protect your heart and lungs.
Other bones are used to support the body. The many bones in your feet allow you to walk, and stand on your tiptoes. Your hands and feet have more than half of the bones in your body!
Biggest Bone
The longest and strongest bone in your body is in your leg. It is called the femur and it goes from your hip to your knee, It is a very important bone because it carries all of your weight and helps you move from place to place.
Smallest Bone
Would you believe the smallest bone in your body is in your ear? It is about the size of a grain of rice and is called the stirrup, When sound waves come into your ear, the stirrup shakes back and forth, allowing the sound waves to reach your brain. When the waves reach your brain. you hear the sound.
Funny Bones
Hah! The funny bone isn't really a bone at all. It is actually a nerve(神经). When you hit the nerve that is near your elbow. it really hurts or tingles. What's so funny about that? The funny bone probably got its name from the bone that is above your elbow. That bone is called the humerus, which sounds like the word "humorous", meaning "funny"
The bones that make up our bodies help us grow, and allow us to move. When you think about them, our bones are really wonderful.
阅读短文,完成下面表格。
title | | |
Man body | You have more than 200 bones when you grow up. Your bones work together to protect you and support your body. | |
Many uses | To protect your body | |
Biggest bone | ||
Funny bones | ||
Conclusion(总结) |
Big data (数据) technology has been working widely for more than ten years. Actually all activities of our daily lives have some kinds of online footprints. Both companies and persons are trying to get value out of big data.
Big data means large sets of data collected from different areas. The data then will be studied to get useful information, which can be turned into value. Areas of use of big data cover a lot of industries, such as healthcare, business services, transport, and customer services. Take a supermarket chain as an example. The chain managers study the data of thousands of customers across hundreds of stores, possibly finding hidden buying patterns. In turn, if products are properly placed, it might result in more sales.
As we shall see shortly, much of the data is produced largely in real-time. These may be cross-national online business websites with thousands of deals per minute, or social media platforms (平台) with millions of users, with more than billions of posts a day.
Besides, the big data with AI technology comes into play. Business services were able to use the information about their customers, like banking records and spending habits to spread their businesses and build new services, using big data about their customers.
In healthcare, examples are medical treatment improvement and outbreak progression (疫情进展). Firstly, big data can analyze (分析) a large amount of information, and then doctors can make some plans according to these data so that they can provide cheaper and better treatment. Secondly, it could predict outbreaks of future illness and help to reduce the influence of disease.
So we can expect more organizations to recognize the value of big data. This means that the need for experts in this field is expected to grow. What changes will big data bring to us?
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题将画线句子译成汉语。
1. Not only companies but also persons are
2. Placing products properly might result in
3. What can big data do in treatment improvement?
4.
5.
We all know that 70% of the earth is water. But only 1% of it is clean water. People can’t live without water, and everyday we waste lots of water. So it’s important for everyone to save water. Here are some pieces of advice for saving water.
Indoors:
■ Turn the tap off while your are brushing your teeth, washing your hands, doing dishes , taking a shower and so on.
■ Don’t wash clothes too often. When you use the washing machines, make sure there is not only a pair of trousers in it. You should wash as many clothes as possible once.
■ Catch the cold water that comes out of the tap or shower while you are waiting for the hot water. Use the water to water plants, wash your toilet or do any other things.
Outdoors:
■ Water the garden and grass at night. This gives water more time to get into the earth without evaporation (蒸发) from the day’s heat.
■ Plant small trees under big trees, this will help stop evaporation and gives some shade for your plants. You can also plant a shade garden under trees in order to reduce evaporation of water.
1. Why is it important for everyone to save water?2. Why do you water the garden and grass at night better?
3. Translate the underlined sentence into Chinese.
4. List (列举) the things that you can do to save water indoors. (at least two)
5. Give a proper title to the passage.
Tips for a Tidy Desk
Do you want to keep your desk clean and tidy? The following tips can help you.
Only keep things you really need on your desk.
Use a bag for any papers to read. Have a penholder for pens and pencils. Besides, you had better have a litter bin near your desk.
Don’t keep any drinks on your desk.
Go to the kitchen when you want to have a drink, or keep a drink on a small table near your desk.
Cut down the use of paper.
Try to keep as much information as possible on your computer. Before painting, you can ask yourself, “Do I really need to read this on paper?”
Get a noticeboard for you.
If you really need to keep small pieces of paper, use a noticeboard on the wall. You can check it every day and throw the old notes into the bin.
Clean your desk at the end of every day.
The more often you clean your desk, the easier it will be each time. Choose a time to tidy your desk! If you do it every day, it will only take a few minutes and you can start each new day with a clean and tidy desk.
Tips for a Tidy Desk | |
Keep things needed on your desk | ●Use a bag for any ●Have a penholder for pens and pencils ●Have a litter bin |
Keep | ●Have a drink in the kitchen ●Keep a drink on a small table |
Keep as much information as possible on the computer | |
Get a noticeboard | Use a noticeboard |
Choose a time to tidy |