Human bodies are a miracle(奇迹). Let's look at one example first.
How can you tell whether something is hot or cold? You touch it. There are things in your fingers that help you to know whether something is hot or cold. They're called nerves(神经). You have them all over your body. Nerves react(反应) to things we touch and send messages(消息)through our bodies to our brain, telling us how something feels.
If you touched the edge of a knife, how would that feel? It would hurt. If you didn't have nerves, you would still bleed, but it wouldn't hurt. You wouldn't be able to feel it. So, why are nerves a good thing? We would hurt ourselves a lot more without them.
Imagine that you're making a snack in the kitchen. You put your hand down on the stove. After a minute or two, you see some smoke rising in the air. It's your hand! It's burning! If you had no nerves, you wouldn't be able to feel the heat from the stove. Then you would have to go to the hospital.
We had no nerves, the weather wouldn't affect(影响)us, or would it? If it were below 0℃, you wouldn't feel how cold it was. But if you went outside without protecting(保护)your body from the cold, you could get very sick or die. Nerves help us stay safe and healthy.
There are many other parts in our body that make us a miracle…
1. Nerves work by ________________.A.touching something | B.showing brains what to do |
C.telling the hot from the cold | D.sending messages to the brain |
A.get hurt lesson often | B.don’t feel a lot of pain |
C.don't bleed that much | D.stay away from hospitals |
A.why nerves keep us from heat | B.how our fingers react to smoke |
C.when people shouldn't use knives | D.what it is like if we have no nerves |
A.Ways to protect ourselves. | B.Different nerves in our body. |
C.Other great parts in our body. | D.Miracles made by our nerves. |
相似题推荐
In summer everybody needs to be careful with the sun. Do you know how to spend time in the sun without burning or damaging your skin? Read the ten rules below. Some of them are RIGHT and the others are WRONG.
• Always wear a baseball cap. It protects you from the sun and looks cool, too.
WRONG You need to wear a hat, but choose your hat carefully. Baseball caps protect your eyes, but they don't protect your ears or your neck. Use a proper sun hat.
• Use sun cream. You need to put it on at least twenty minutes before you go out.
RIGHT Sun cream starts to work twenty minutes after you put it on.
• Put sun cream around your eyes and on your eyelids(眼睑;眼皮) to protect them from the sun.
WRONG Sun cream hurts the eyes. Wear sunglasses instead.
• You only need a little sun cream. Too much sun cream is bad for your skin.
WRONG You need to use a lot of sun cream. The sun makes your skin dry. Sun cream moisturizes(滋润) and protects it.
• Put more sun cream on every two hours.
RIGHT You need to put sun cream on often, especially when you're swimming.[来源:Zxxk.Com]
• You need to use sun cream even on a cloudy day in summer.
RIGHT The sun can damage your skin even on a cloudy day.
• On a hot sunny day, wear light-coloured clothes — white or yellow are best.
WRONG Light-colored clothes don't protect you from the sun. The best solution is to wear dark-coloured clothes.
• You need to spend time in the sun for healthy skin.
RIGHT You need to spend time in the sun to get enough vitamin D for healthy skin and bones(骨头), but don't forget to use sun cream. Without sun cream, you have a bigger risk(danger) of skin cancer(癌症).
• You need to spend a lot of money to get a good sun cream.
WRONG There are many different kinds of sun cream. Find the one that is best for you. Expensive ones are not always better than cheap ones. Use a sun cream labeled(标明) SPF30+ and it should give you the same protection as one that is more expensive.
• In summer, people with dark skin can also get burnt.
RIGHT People with fair skin and blonde or red hair need to be extra careful and use a high factor sun cream(高效护肤霜). People with fair skin(白皙皮肤) do need to protect their skin from the sun, too.
1. What is the best to wear to protect your skin from the sun?
A.A baseball hat and light-coloured clothes. |
B.A sun hat and light-coloured clothes. |
C.A baseball hat and dark-coloured clothes. |
D.A sun hat and dark-coloured clothes. |
A.Use a little and often. |
B.Use a lot every two hours. |
C.Use a lot twice a day. |
D.Use a little every two hours. |
A.You can drink more water. |
B.It's a chance to wear cool sunglasses. |
C.It improves dark dry skin. |
D.It helps keep your skin and bones healthy. |
A.To make people buy sun cream. |
B.To tell the importance of healthy skin. |
C.To give people advice on summer skin care. |
D.To show people how to dress properly in summer. |
【推荐2】
Improve Sleep Good health needs good sleep. Going to bed before you’re tired. Don’t eat or read in bed. Go to bed at the same time every day before midnight,and get up early in the morning at the same time. Your body likes routine (常规) for a good night’s sleep. |
Stay Away From the Flu Studies show that a cold or the flu virus (病毒) can live on our hands for a long time. So wash all parts of your hands often with soap and water. For more ways to prevent (阻止) the spread (传播) of the flu, please call Health Line at 1800-848-1313. |
Oral Health Brush your teeth twice a day and visit the dentist at least once a year. The mouth is a mirror of disease. The oral examination is not only for the health of teeth, but the whole body. For more of it, please visit www. mydr. com. cn. |
Fit for Life Studies show that many diseases have something to do with (与……有关) fewer or no physical (身体的) activity. Try to do exercise for 30 minutes a day, 5 days or more a week. For more information, please call Health Line at 1800-438-2000. |
根据材料内容,选择正确答案
1. If you want to get a good sleep, you’d better ________.
A.go to bed after you’re tired | B.go to sleep at midnight |
C.follow the bedtime routine | D.eat something or read in bed |
A.to clean your fingers often | B.to brush your teeth twice a day |
C.to get up early every morning | D.to wash all parts of your hands |
A.the oral examination is necessary | B.you don’t often brush your teeth |
C.some diseases may be in the mirror | D.you don’t have a good night’s sleep |
A.having no oral examination | B.wash hands with cold water |
C.sleeping too late sometimes | D.doing few physical activities |
A.口服的 | B.口腔的 | C.牙齿的 | D.平常的 |
【推荐3】There are always lots of strange stories about protecting your eyes. For example, you might have been told that you’d go blind from reading in the dark, but you could make up for it by eating carrots.
This is just one of the wrong ideas you may have heard of. Below teens has picked out scientific explanations for three mistakes the people often make about eyes. Let’s take a look.
Can eating carrots improve your eyesight?
Carrots are rich in Vitamin A, which is important and necessary for your eyes’ general health. Vitamin A helps eyes to make light into signals, allowing people to see in low light conditions. However, eating more carrots doesn’t help you see better. Some carrots will help, but a large number of carrots will not give you superhuman vision or allow you to get rid of your glasses.
If your parents have bad eyesight, will you have bad eyesight, too?
Myopia (近视)can be passed from parents to children. A study by the Americans Optometric Association found that if both parents are myopia, there is a 33 to 60 percent chance that the child is. For children who have one parent with myopia, the chance is 23 to 40 percent, and it’s down to 6 to 15 percent for kids with non-myopia parents. So no matter how bad your parents’ eyesight is ________
Is it true that people who are color blind can’t see colors?
Color blindness doesn’t mean that someone can’t see colors at all, like a black and white movie. It means that someone has difficulty telling some colors apart, usually green and red or blue and yellow. Color blindness is usually a condition caused by not having color cells(细胞). If the cells don’t respond(反应)in the right way to differences in wavelengths of fight, color blindness happens. There are different levels of color blindness. Some people cannot tell the difference between colors in dim(昏暗的)light, while others have difficulty in any light. In the most serious form of color blindness, everything is seen in shades of grey.
1. Which is the RIGHT idea about eating carrots according to the passage?A.Eating carrots doesn’t help people see better at all. |
B.People need to eat as many carrots as possible. |
C.Eating carrots is good for eyes, but people don’t need to eat a lot of them. |
D.Eating a lot carrots is only good for those who work in low light condition. |
A.you must be myopia. |
B.you still have a chance having good eyesight. |
C.you must have a good eyesight. |
D.you should protect your eyes. |
A.Most people who are color blind can only see grey. |
B.Not having color cells can cause color blindness. |
C.Those who can’t tell green from red are not really color blindness. |
D.Most people who are color blind can only see black and white. |
A.Misunderstanding about Eyes | B.Advice on Protecting Your Eyes |
C.Ways to Improve Your Vision | D.Reasons for Color Blindness |
【推荐1】It’s a school day morning. You are dressing yourself in the bedroom. At the same time, you are telling yourself to take your schoolbag from the living room. But as you walk through your bedroom door and into the living room, you suddenly forget why you went there. But scientists believe that the act of walking through doorways makes us forget things. They call it “the doorway effect(门口效应)”.
Scientists from the US did an experiment. They placed some objects(物品) into two rooms. Students had to put an object from room A into a shoebox and then carry it to room B through a doorway. In room B, they exchanged(交换) it for another object and brought it back to room A in the shoebox. But some students did the experiment without crossing through a doorway.
During the experiment, scientists would randomly ask the students which object was in their shoebox. Scientists found that their answers were slower and less correct when they walked through a doorway and into a new room.
“Walking through a doorway serves as a ‘boundary(分界线)’ in the mind,” Gabriel Radvansky told Scientific American. Setting “boundaries” in our minds helps us to organize(规划) the content of our brains, but it can also cause us to forget things.
For example, when you walk into the living room, your brain thinks you got your schoolbag and it moves on.
Is there a way to stop the doorway effect? Writing down what you need to do before going into another room may be helpful.
1. People are more likely to(更有可能) forget things when ________.A.they get up late | B.they take their bag |
C.they run to school | D.they walk through a door |
A.To see if students have good memories(记忆力). |
B.To show the doorway effect is true. |
C.To help students to be smarter. |
D.To help students with bad memories. |
A.正式地 | B.逐步地 | C.随机地 | D.定期地 |
A.slower | B.less correct | C.more quickly | D.more correct |
A.writing down what you need to do | B.keeping everything in mind |
C.asking friends for help | D.putting all your things in one room |
To treat the break, the doctor will need to take an X-ray. This gives the doctor the information he or she needs to set (接上) the bone: to put it back to its normal place. If the bone is large or it is broken in more than one place, the doctor may need to use metal pins (钢钉) to set it. After the bone has been set, the next step is usually putting on a cast, the special, hard thing that will keep the bone in place for a month or two.
Your bones are excellent at healing themselves. Broken bones will produce many new cells (细胞) and tiny blood vessels (血脉). These cover both ends of the broken part, and close up the break until the bone is as whole and strong as before.
1. Which of the following is the best title for the passage?
A.How to Know if a Bone is Broken |
B.How Broken Bones Heal Themselves |
C.Common Causes (原因) of Broken Bones |
D.What You Should Know about Broken Bones |
A.asking the doctor for help | B.comforting the hurt person |
C.moving the injured part | D.staying calm |
a. take an x-ray b. use metal pins to set it c. put it back to its normal place d. put on cast
A.a→b→c→d | B.a→c→b→d | C.a→d→c→b | D.d→a→b→c |
Tianwen 1, China’s first Mars probe, gave us amazing pictures of the red planet on March 4, 2021.
“ These are the first close-up pictures of Mars’s surface taken by China. Although it’s not a new technology in the world, it’s the milestone in the development of China’s space exploration.” said Bao Weimin, an expert of the Chinese Academy of Sciences.
The pictures were taken at different distances from Mars. The two black-and-white pictures were taken by the high-resolution camera on Tianwen 1 when the probe was about 330-350 kilometers above the red planet. As for the color picture, it was taken by Tianwen 1’s medium-resolution camera when the probe was about 5,000 kilometers above. It shows Mars’s North Pole.
The probe took high-resolution pictures while it was traveling around Mars, CNSA said. Craters can clearly be seen. CNSA added that the largest crater in the picture could be about 620 meters in diameter
“Whether the pictures are black-and-white or colored depends on the way they are taken,” said Liu Tongjie, deputy director of the Lunar Exploration and Space Engineering Center of CNSA.
The high-resolution camera can take both color and panchromatic pictures. Panchromatic pictures, which are black and white, are the clearest, containing the largest amount of data for scientific study, said Liu. The medium-resolution camera can only produce less clear pictures. Scientists combined the panchromatic and color pictures, getting a clear and beautiful color picture, Liu added
Tianwen 1, China’s first Mars mission, was launched in July, 2020. The probe is going to land on the red planet sometime between May and June this year.
1. How many pictures are taken by Tianwen 1?A.1 | B. 2 | C.3 | D. 4 |
A.Sometime between March and April. | B.In May or June. |
C.In October. | D.By the end of this year. |
A.Craters are not clear enough in the pictures. | B.They are the first close-up photos taken of Mars. |
C.The photos were all taken by a high-resolution camera. | D.The panchromatic pictures include more data. |
A.To describe the technology used to take these pictures of Mars. |
B.To tell us the difficulties in taking pictures of Mars. |
C.To introduce pictures of Mars made public by CNSA. |
D.To tell readers of the importance of these photos of Mars. |
【推荐1】Thailand is one of the most visited countries in the world. Last year, more man 20 million people visited Thailand’s national parks. With an area of 2, 000 square kilometers. Khao Yai National Park has a history of 61 years. Every year, it welcomes a lot of visitors. Over the past few years visitors have left behind nearly 50, 000 kg of rubbish. Now the park has a plan to solve the problem.
If visitors don’t take their rubbish away, the park will send a souvenir(纪念品) to them. What is it? It’s not the type of souvenir you want as a gift. It’s a package(包裹) full of rubbish they have left in the park. Something is on the package: “You forgot something in Khao Yai National Park. So we return it to you.” Varawut Silpa-archa, Thailand’s Minister of Natural Resources and Environment wrote on the Internet, “I will pick up every single piece of your rubbish, pack them well in a box, and send it to your home.”
In order to make it easier for the park officers to return the rubbish, visitors coming to Khao Yai National Park must write down their address.
So think twice next time you want to throw rubbish away.
1. When was Khao Yai National Park built?A.In 1958. | B.In 1962. | C.In 2000. | D.In 2019. |
A.Its gift stores are too old. | B.There is too much rubbish. |
C.There are too many visitors. | D.It doesn’t have enough space. |
A.It’s full of rubbish. | B.The visitors take it home. |
C.The park sells it to visitors. | D.It gets to the visitors by plane. |
A.Their phones. | B.Their address. | C.Some rubbish. | D.Some souvenirs. |
A.In a diary. | B.In a history book. | C.In a newspaper. | D.In a noticeboard. |
【推荐2】My 10-year-old granddaughter was happy the day before yesterday because her mother took her and her friend to a park to celebrate Children’s Day. For a whole day, the two girls played heartily---no homework, no extra-curricular (课外) skills training. The happy life lasted only for one day. Yesterday, everything returned to normal: doing homework till late at night and going over lessons learned at last weekend’s English and “Olympic maths” courses.
Every time I went to my daughter’s house in the evening, I saw her sitting by the small desk in the room doing her homework. On the wall behind the desk are some words she wrote. One sentence reads: “Why is the exercise endless?” Poor girl!
Although teachers have stopped giving after-school homework to primary school children, parents have been forcing their kids to attend different courses-learning English, painting, “Olympic maths” and so on, every Saturday and Sunday.
Are these extra-curricular courses really necessary in children’s education? The answer is certainly “No”. Take the so-called “Olympic maths” for example. These courses are very difficult for the children to understand. Often, they are difficult even for adults.
1. The writer’s granddaughter celebrated her Children’s Day by ________.A.playing all day | B.doing nothing |
C.having a party | D.going over lessons |
A.stay at home | B.play with their classmates |
C.do whatever she likes | D.go to different kinds of training courses |
A.lives a happy life | B.goes to bed early at weekend |
C.has too much homework | D.likes to do more exercises |
A.The “Olympic Maths” is too difficult for kids. |
B.The grandfather thinks playing is more important than learning. |
C.Teachers often give students useless homework. |
D.The parents don’t want their kids to do lots of homework. |
【推荐3】①Could you imagine being in a car driven by a computer, not a human? Recently, China has made a big step toward self-driving technology. Since August, driverless taxis can run on roads in Wuhan, Chongqing and Shenzhen.
②Why do we develop self-driving cars? Self-driving cars have many advantages. They use computers to sense the things around them and make better use of space. This means fewer crowded roads and better parking of cars. For disabled or blind people, self-driving cars can also help them get around more easily.
③According to US Centers for Disease Control and Prevention, each year, more than 1.35 million people are killed on roads around the world. Many more are hurt in accidents. Self driving cars could reduce road accidents by 90 percent and save governments a lot of money. The main cause of car accidents is human error (错误). By using computers, self-driving cars don’t make poor decisions or lose attention like humans do.
④But self-driving cars aren’t perfect. If something unexpected on the road happens, self-driving cars can’t react as fast as a human driver can. Also, during weather events like heavy snow, self-driving cars wouldn’t see the lines on the road easily. It might lead to an accident. The car’s computer system would be broken by someone, causing it to crash or change its direction.
⑤It’s clear that there is a lot of work to do to make self-driving cars a common sight on our roads. And China is taking the lead in making this happen.
1. According to the passage, it is ________ to develop self-driving cars for disabled or blind people.A.difficult | B.creative | C.helpful | D.unnecessary |
A.Self-driving cars would cause 90 percent road accidents of all. |
B.Self-driving cars would cause 10 road accidents among 100 ones. |
C.90 percent of self-driving cars would cause road accidents. |
D.Self-driving cars could reduce the number of road accidents from 100 to 10. |
A.how self-driving cars work |
B.why self-driving cars were invented |
C.what we should do to use self-driving cars safely |
D.that self-driving cars bring both convenience and problems |
A. | B. | C. | D. |
There are many wonderful websites about fishing. For example, www. Bigfish.com has a lot of forums. There you can share your knowledge about fishing and get helpful advice from other fishermen. Http://fishingforbeginners.com is also a good website. It teaches how to fish.
I think there are many advantages of going fishing on the bank of a river under some green trees. You can forget the sad things when you are fishing. If you don’t try fishing, you will never know what you are missing. Imagine standing on the bank of a river and catching a lot of fish. Allow the fish to bite the hook(钩)before pulling it up. When you catch the fish, you will feel quite happy and excited. You will never have this feeling until you give fishing a try.
Now that your interest is motivated, you may be thinking that you don’t have a clue about how to fish. If that’s the case, these tips will help. If you’d like to learn how to fish, there are a few things you can do.
Research the place of fishing.
Read a book about fishing.
Research online. There are hundreds of websites that give instructions on fishing.
1. The purpose of the first paragraph is ____________________.
A.to tell us the writer’s hobby |
B.to tell us everyone likes fishing |
C.to tell us fishing is protecting the nature |
D.to tell us fishing can help us relax ourselves |
A.often go to chat with others online |
B.try to fish to get some experience on our own |
C.learn some knowledge about fishing before fishing |
D.often take a walk along the bank of a river after supper |
A.will have a lot of trouble |
B.will lose a lot of pleasure of fishing |
C.will never enjoy the green trees |
D.will never know fishermen’s trouble |
A.The writer doesn’t tell us any ideas about how to fish in this passage. |
B.If you are interested in fishing, you’d better find some advice on the Internet. |
C.You can find some ideas about fishing on Http://fishingforbeginners.com. |
D.The writer introduces the fun of fishing to us. |
【推荐2】You may be able to care for your physical health by wearing a mask, washing your hands, and doing regular exercise during the coronavirus epidemic, but how do you treat your mental health? Millions of people are facing fear, anxiety and depression as lockdowns, transportation bans and quarantines (隔离期) continue.
As part of the government's "first level response", the National Health Commission said more than 300 hotlines are now available throughout China. Callers can talk with counseling (咨询) services and people from university psychology departments, Reuters reported. Depending on your location, you can call one of these 24-hour hotlines for psychological support and general advice if you're experiencing anxiety, depression or panic attacks — no matter whether you're a patient, medical worker or just someone stuck at home.
A survey conducted by the Chinese Psychology Society found that of the 18,000 people tested for coronavirus-related anxiety, 42.6 percent were anxious, according to NBC News.
"A stable state of mind can help reduce impatience and anxiety, which is helpful for treatment. Providing psychological counseling and appropriate medicine, psychiatry (心理治疗) can play an important role in the battle against the epidemic," said Chen Jun, an expert from the Shanghai Mental Health Center, on CCTV.
A healthy mind supports a healthy body. Stress weakens the immune system, according to the American Psychological Association. Managing stress may help people fight off a virus.
In addition to hotlines, online platforms and social media have also offered support to those dealing with the mental pressure of worrying about the virus. One virus-related hashtag (话题), which translates as "how to deal with feeling very anxious at home," has been viewed by hundreds of millions of Sina Weibo users.
Universities have set up support groups on QQ, while thousands of doctors provide counseling for users on JD.com. KnowYourself, a public WeChat account, hopes to reduce panic attacks to frontline medical workers, patients and their families.
"People are scared, their lives are being interrupted, so to have a voice that helps to comfort them and calm them and kind of guide them through this process can be very helpful," Paul Yin, a psychologist in Beijing, said.
Keeping a positive mindset is key during this difficult time. Remember to keep things in perspective and maintain social networks with your family and friends. Treat your mind well, and your body will follow.
1. What can we learn about the counseling service from Paragraph 2?A.Only patients and medical workers are offered the service. |
B.Over 300 hotlines are available in every city across China. |
C.It's aimed at people with coronavirus-related mental problems. |
D.Some university psychology departments offer face-to-face counseling. |
A.How the novel coronavirus affects people mentally. |
B.Why it is vital to provide psychological support. |
C.How people should manage anxiety and stress. |
D.What kinds of counseling are being offered. |
A.To prove the benefits of social media. |
B.To compare the support they provide people. |
C.To show where psychological support is also given. |
D.To stress the negative impact of the virus on people. |
A.用自己的视角看问题 | B.保持冷静 |
C.客观看待问题 | D.用积极的心态看问题 |
A.Counseling services help people to stay positive. |
B.It takes a long time to rid people of their anxiety. |
C.It is helpful for anxious people to talk with each other. |
D.Various communications are in need in the counseling process. |
【推荐3】
Attention, please! Reporters wanted! ※※※※※※※※※※※※※※※※※※※※※※※※※※※※ Do you dream of being a reporter? Are you a good writer who loves the news? If so, you may have a chance to be a winner in the TFK Kid Reporter Talent Search. We’re looking for 12 students from around the nation to be members of the TFK Kid Reporter team for the 2019~2020 school year. Next year’s team will continue the tradition of reporting local news stories for Time For Kids magazine and www.time forkids.com. Professional reporters from Time For Kids will decide who will be the winner. In the past year, TFK Kid Reporters have: ★ Interviewed national leaders, famous people and other newsmakers. ★ Written news stories, reviews, and opinion pieces for Time For Kids. ★ Learned about the news business from prize-winning reporters who work at TIMES. ★ Appeared on television to talk about their work. ※※※※※※※※※※※※※※※※※※※※※※※※※※※※ How to Enter To apply, visit www.timeforkids.com/2019 kr and complete the official entry form (报名表). Be sure to read the official rules and share them with your parents or teachers, who must sign your entry form and send it to us by email. Entry forms must be sent by June 17, 2019. You must be 14 years old or younger on September 1, 2019. ※※※※※※※※※※※※※※※※※※※※※※※※※※※※ Contest opens: 10:00 a.m. on March 14, 2019 Contest deadline: 12:00 p.m. on June 17, 2019 All entries must follow the official rules for consideration. See contest rules on the next page. Good luck! |
1. The 12 student reporters will work for ________.
A.more than a year | B.less than a year | C.about a year | D.half a year |
A.play a role in some famous TV plays | B.learn how to do well in the reporting job |
C.do an interview with the American president | D.write down his own ideas at www.time forkids.com |
A.March 14, 2019 | B.June 17, 2019 | C.September 1, 2019 | D.December 31, 2020 |
A.a diary | B.a dictionary | C.a storybook | D.a notice |