Different vitamins are found in different foods. Then which food should be eaten to keep us healthy? Let’s look at some important vitamins for the answer.
Vitamin A helps to protect skin from becoming dry. It is also helpful to the eyes. Without vitamin A, you cannot see well in darkness. Vitamin A is found in animal liver and the yellow part of eggs. Sweet potatoes, carrots and other dark-coloured fruit and vegetables have something that body can change into vitamin A. |
Vitamin B changes food into energy and helps the heart and nerve system to work smoothly. Vitamin B also helps to produce red blood cells.Without it, we will be weak and will not grow. It is found in grains and other foods like beans, nuts, meat and fish. |
Vitamin C is needed for strong bone and teeth, and for healthy blood vessels. It also helps wounds to cure quickly. The body stores little vitamin C, so we must get it everyday in foods like oranges, tomatoes and cabbage. |
Vitamin D increases the level of calcium in the blood. Calcium is needed for nerve and muscle cells to work normally, as well to build strong bones. Fish liver oil has vitamin D. In some countries, milk producers add vitamin to milk so that it will be good for children. |
1. What will happen to you without vitamin A?
A.You will not see well in a dark place. | B.You can’t grow tall at all. |
C.You will not hear anything around you. | D.You can’t build strong bones. |
A.Fish liver oil. | B.Grains, meat and fish. |
C.Fruit and cabbage. | D.Animal liver and eggs. |
A.Vitamin A. | B.Vitamin B. | C.Vitamin C. | D.Vitamin D. |
相似题推荐
【推荐1】Don’t Cry, Mom
![](https://img.xkw.com/dksih/QBM/2022/12/5/3124207868510208/3328748514656256/STEM/b5786b558e074287b3ccb195fb4db728.png?resizew=107)
One day, when I walked into the kitchen, I saw my mom crying. “Mommy, what happened? Why are you sad?” I asked.
Mom smiled at me. “I have tears in my eyes,” she said. “But I am not sad.”
“I am cutting onions, as you can see.” Mom said.
“Onions have a strong chemical that hurts our eyes. But don’t worry. Our body is amazing. It senses the danger of this chemical and sends tears to our eyes to get rid of it. Tears protect our eyes from danger.”
That is interesting! I learned something else too. All animals cry to protect their eyes. But humans are the only animals that cry when they are sad.
I love learning about my body. It all seems to work perfectly! The more I learn about it, the more amazed I am.
![](https://img.xkw.com/dksih/QBM/2022/12/5/3124207868510208/3328748514656256/STEM/9cbfc37bd3154715ae262de7264c44d5.png?resizew=93)
1. Why mom is crying?
A.Because she is sad. | B.Because she is cutting onions. |
C.Because she is eating. | D.Because she is happy. |
A.To show they are sad. | B.To communicate. |
C.To protect their eyes. | D.To fight with others. |
A.He is stupid. | B.He is willing to learn. |
C.He is exiting. | D.He is talkative. |
【推荐2】Some people like to get up early, but some do not. In fact, it is really good for us to get up early every day.
Maybe those who don’t like getting up early will not believe this, but it is really true. Scientists made a survey(调查)in about at least one thousand people, and then they found that early rising(早起)people had less disease than late rising people, and early rising people also look healthier than late rising people, and so on.
So we may know early rising is helpful in more than one way. First, it helps to keep us healthy. We all need fresh air. But air is never so fresh as early in the morning. Besides, it is useful to do morning exercises or play sports in the early morning.
Secondly, early rising helps us in our studies. In the morning we usually learn more quickly and find it easier to understand what we learn.
Thirdly, early rising can give us a plan of our work for the day. We cannot work well without a good plan.
Fourthly, early rising gives us enough time to get ready for our work, such as to wash our hands and faces and eat our breakfast.
Late risers may find it difficult to form the habit of early rising. They have to make an effort(努力)to do so. As the English proverb says, “Early to bed and early to rise makes a man healthy, wealthy and wise.”
1. Early rising people are usually ________ than late rising people.A.fatter | B.thinner | C.healthier | D.cleverer |
A.疾病 | B.工资 | C.愤怒 | D.精力 |
A.People can get ready for their weekend activities. |
B.People can get fresh vegetables. |
C.People can learn things more quickly and better. |
D.People can get more money than before. |
A.easy | B.difficult | C.happy | D.sad |
A.getting up late | B.going to bed early | C.staying up late | D.doing exercise all day |
【推荐3】Many people like going to concerts. Today you might have a new excuse to attend concerts held by your favorite musicians. A new study from the University of London suggests that going to concerts can make you live longer.
Researchers said going to concerts can help people feel happier and closer to others. It can also make them work more efficiently. The key is that you need to go to a concert once every two weeks or even more regularly.
Of course, studying is the most important for students. There might not be enough time for you to go to concerts regularly. But once in a while, you can try to go to a concert and relax a bit.
1. What is a new excuse to attend concerts?A.It can make people live longer. | B.It can help people feel happier. |
C.It can make people feel excited. | D.It can make people work more efficiently. |
A.Once every two weeks. | B.Once a month. |
C.Once two months. | D.Once a year. |
A.Working hard every day. | B.Studying. |
C.Relaxing a bit every day. | D.Living longer and happier. |
A.高效地 | B.挑衅地 | C.狂妄地 | D.木讷地 |
A.Help you find a good excuse. | B.Who is your favorite musician? |
C.How to feel happier and closer to others. | D.Attending concerts makes people live longer. |
【推荐1】As students, we should have some good ways of study and life. Here are some.
●Good ways of study
We must work hard at every subject at school. In class we must listen to our teachers carefully. After school we should do our homework on time. If we meet some difficult problems(困难) in our study, we can ask our teachers or our classmates for help.
Books are our good friends. So in our free time, we should read more books. They can help us open our eyes to the world.
●Good ways of life
We should get up early in the morning. We can do some running or reading.
We should keep us clean every day. We had better brush our teeth twice or three times a day and wash our hands often.
It is not a good idea to have too long hair for boy students. Teachers don’t like it, right? Boy students should often have their hair cut.
根据材料内容,选择最佳答案。
1. What may the writer do?
A.He is a student. | B.He is a worker. | C.He is a teacher. | D.He is a driver. |
A.Ask his classmates for help. | B.Do his homework on time. |
C.Talk with his teacher. | D.Brush his teeth. |
A.We should have good ways of study and life. |
B.We must listen to our teachers carefully in class. |
C.We don’t have to do our homework after school. |
D.We should get up early in the morning. |
A.He wants the boys to talk with their teachers often. |
B.He wants the boys to have their hair cut often. |
C.He wants the boys to study hard. |
D.He wants the boys to read often. |
A.Our Study | B.Our School Life |
C.Our Everyday Life | D.Good Ways of Study and Life |
【推荐2】As a schoolgirl, I’m not beautiful at all. I don’t have big eyes. I’m not tall. And I’m very heavy. My face is big. There is a scar (疤痕) on my face. It makes me sad. However, my father often encourages me. Here is his advice for me.
Don’t be sad. Try to hold up your head when you walk on the street. No one cares about what you look like.
Get on well with your classmates and teachers. Please help them when anyone needs help. Helping others is helping yourself. It can make you happy.
Work hard at your lessons. If you do well in your tests, you will feel very confident (自信的).
Have some good eating habits and try to play sports every day. Then you will have lots of energy to study.
1. What does the writer look like?A.She’s tall with small eyes. | B.She is tall and thin. |
C.She’s heavy with a big face. | D.She has big eyes and a big face. |
A.Her teacher. | B.Her mother. | C.Her classmates. | D.Her father. |
A.Three | B.four | C.five | D.two |
A.Holding up her head. | B.Helping others. |
C.Working hard at her lessons. | D.Playing sports. |
A.Please care about your look. | B.I love my father. |
C.A scar on my face. | D.My father’s advice. |
【推荐3】More and more people like bicycling and it is no surprise. It is fun, healthy and good for the environment(环境). Maybe that’s why there are 1.4 billion bicycles and only 400 million cars on roads all over the world today. Bikes can take you almost anywhere, and there is no oil(油) cost!
Get on a bicycle and ride around your neighborhood. You may find something new around you. Stopping and getting off a bike is easier than stopping and getting out of a car. You can bike to work and benefit(受益) from the funny exercise without polluting the environment.
Health Benefits of Bicycling:
It helps you keep a good heart.
You won’t be afraid of getting fatter any more.
A 15-minute bike ride to and from work three times a week can make you lose five kilos of fat in a year.
Bicycling can also make you happy. Exercise like bicycling can make people feel better and more relaxed.
Bicycling is healthier than driving.
1. From the passage, we know that bicycling is becoming very ________.A.surprising | B.exciting | C.expensive | D.popular |
A.you can have a new bike |
B.you will be friendly to others |
C.you will be more relaxed |
D.you may get fatter |
A.Bicycling is enjoyable exercise for people. |
B.Bikes can take you anywhere. |
C.Riding a bike pollutes your neighborhood. |
D.You will become fat if you ride every day. |
【推荐1】Once upon a time, there lived a rich man. He had a servant(仆人). He and the servant loved wine and good food very much. Each time the rich man left his home, the servant would drink the wine and eat up all the nice food in the house. The rich man knew what his servant did, but he had never caught his servant doing that.
One morning, when he left home, he said to the servant, “Here are two bottle of poison(毒药) and some nice food in the house. You must take care of them.” With these words, he went out. But the servant knew what the rich man said was not true. After the rich man was away from his home, he enjoyed a nice meal. Because he drank too much, he was drunk and fell to the ground. When the rich man came back, he couldn’t find his food and his wine. He became very angry. He woke the servant up. But the servant said a cat had eaten up everything. He was afraid to be punished(惩罚), so he drank the poison to kill himself.
根据材料内容选出最佳答案,并将其标入题前括号内。
1. In the story, ________ liked wine and good food very much.
A.the rich man | B.the servant | C.both A and B | D.neither A nor B |
A.the cat | B.himself | C.nobody | D.the servant |
A.there was in fact poison in the bottle | B.he did not want the servant to drink his wine |
C.he wanted to kill the cat | D.he wanted to kill the servant |
A.the servant | B.a cat | C.the rich man | D.nobody |
A.lazy | B.bad | C.clever | D.kind |
【推荐2】Modesty(谦逊) is a valuable quality in many cultures around the world. In China, this is no different. However, the phrase “毛遂自荐” seems to disagree with this.
During the Warring States Period, the Qin army marched on Handan. Seeing that Handan was in danger, Prince Pingyuan looked for help from the state of Chu. He wanted to pick 20 talented people to go with him. However, he could only find 19 people who were good enough. Then, a man named Mao Sui volunteered. Prince Pingyuan looked at Mao Sui with doubt, “How long have you been here with me?”“Three years,” Mao Sui answered.
“I hear that a person with talent is like an awl in a cloth bag. Its sharp point will soon pierce through the bag. You’ve been here for a long time, but l haven’t seen any of your achievements. Maybe you don’t have any talent.” said Prince Pingyuan.
“What I’m asking you now is to put me into that bag. If you do that, I will pierce through it. But not only the point-the whole awl,” Mao Sui said confidently.
Impressed, Prince Pingyuan allowed Mao to join his team, and Mao proved very helpful. Now the phrase “Mao Sui recommending himself” is used to describe someone who volunteers to do a task.
However, there is a fine line between self-confidence and arrogance(傲慢). It’s important to believe in yourself, but a strong ego(自负) can harm your career and professional relationships. So we recommend letting your work speak for itself.
1. What is an awl like?A.It has much talent. | B.It has a sharp point. |
C.It looks like Maosui. | D.I t looks like a cloth bag. |
A.Showing modesty. | B.Feeling unconfident. |
C.Being honest enough. | D.Volunteering for a task. |
A.put an awl into a bag |
B.put Mao Sui into a bag |
C.let Mao Sui join the team |
D.let Mao Sui leave Prince Pingyuan |
A.Modesty isn’t a valuable quality. |
B.Mao Sui was a modest person. |
C.Prince Pingyuan didn’t like Mao Sui. |
D.We should believe in ourselves. |
This is a room in Linda’s house. There is a big bed, a table, a computer and some chairs in it. There’s a tape and some books on the table. There is a picture on the wall. Linda is in thę room. That is Linda’s parents’ room. She is watching TV at home. Her father and mother are in the school. They work hard.
1. There is only (只有) one room in Linda’s house.2. A bed, a table, a computer and some chairs are in the room.
3. Some books are under the table.
4. Linda’s father and mother work in school.