Vitamin D helps bones and muscles grow strong and healthy. Low levels of vitamin D can lead to diseases such as rickets (佝偻病), mainly found in children. The thinning of bone is a common problem as people, especially women, get older.
But more and more research is suggesting that vitamin D might also help prevent many diseases. The easiest way to get vitamin D is from sunlight. The sun’s ultraviolet (紫外线的) rays react with skin cells to produce vitamin D. But many people worry about getting skin cancer and skin damage from the sun. As a result they stay out of the sun. Also, darker-skinned people produce less vitamin D than lighter-skinned people. The amount also decreases in older people and those living in northern areas that get less sunlight.
Not many foods naturally contain vitamin D. Foods high in this vitamin include oily fish and fish liveroils (鱼肝油). Farmed fish have only about one-fourth as much vitamin D as wild fish. Small amounts of vitamin D are found in beef liver, cheese and egg yolks. But most of the vitamin D in the American diet comes from foods such as milk.
Research in the last several years has shown that low levels of vitamin D may increase the risk of heart attacks in men and deaths from some cancers. More doctors are now having their patients tested for their vitamin D levels. But as research continues, some experts worry that if people take too much vitamin D, it might act as a poison. Also, skin doctors warn people to be careful with sun exposure because of the risk of skin cancer.
1.The first paragraph is mainly about .
A.the muscle diseases | B.the sources of vitamins |
C.the importance of health | D.the functions of vitamin D |
2.Which of the following people produce the least amount of vitamin D?______
A.Elderly darker-skinned people. | B.Young lighter-skinned people. |
C.Elderly lighter-skinned people. | D.Young darker-skinned people. |
3. People can get the most vitamin D from .
A.beef liver | B.cheese | C.wild fish | D.farmed fish |
4.What can we infer from the text?_________
A. Being exposed to sunlight is the safest way to get vitamin D.
B. Lack of vitamin D can make people age quickly.
C. Proper vitamin D levels people need are still not determined now.
D. The vitamin D level is higher in men than in women.
高二英语阅读理解困难题
Vitamin D helps bones and muscles grow strong and healthy. Low levels of vitamin D can lead to diseases such as rickets (佝偻病), mainly found in children. The thinning of bone is a common problem as people, especially women, get older.
But more and more research is suggesting that vitamin D might also help prevent many diseases. The easiest way to get vitamin D is from sunlight. The sun’s ultraviolet (紫外线的) rays react with skin cells to produce vitamin D. But many people worry about getting skin cancer and skin damage from the sun. As a result they stay out of the sun. Also, darker-skinned people produce less vitamin D than lighter-skinned people. The amount also decreases in older people and those living in northern areas that get less sunlight.
Not many foods naturally contain vitamin D. Foods high in this vitamin include oily fish and fish liveroils (鱼肝油). Farmed fish have only about one-fourth as much vitamin D as wild fish. Small amounts of vitamin D are found in beef liver, cheese and egg yolks. But most of the vitamin D in the American diet comes from foods such as milk.
Research in the last several years has shown that low levels of vitamin D may increase the risk of heart attacks in men and deaths from some cancers. More doctors are now having their patients tested for their vitamin D levels. But as research continues, some experts worry that if people take too much vitamin D, it might act as a poison. Also, skin doctors warn people to be careful with sun exposure because of the risk of skin cancer.
1.The first paragraph is mainly about .
A.the muscle diseases | B.the sources of vitamins |
C.the importance of health | D.the functions of vitamin D |
2.Which of the following people produce the least amount of vitamin D?______
A.Elderly darker-skinned people. | B.Young lighter-skinned people. |
C.Elderly lighter-skinned people. | D.Young darker-skinned people. |
3. People can get the most vitamin D from .
A.beef liver | B.cheese | C.wild fish | D.farmed fish |
4.What can we infer from the text?_________
A. Being exposed to sunlight is the safest way to get vitamin D.
B. Lack of vitamin D can make people age quickly.
C. Proper vitamin D levels people need are still not determined now.
D. The vitamin D level is higher in men than in women.
高二英语阅读理解困难题查看答案及解析
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。
A
•AmericanMalinois(玛伦牧羊犬)
We have extra large,strong and healthy puppies born on May 29,2014 and raised on 2.5 acres fenced in Williston Highlands by American Malinois Foundation.
They are not caged or home-raised Malinois.They have taken swimming training and full exercise routine with their parents to make sure they know how to guard themselves and other things this breed can do.I work specifically on the ones which have service dog qualities.
My ideal buyer would be a disabled person in need of a mobile or medical alert service dog.The American Malinois is a working dog and is most content to bond with one person and only follow this person’ s orders.Potential owners should be familiar or experienced with this breed.
My fee represents the cost of feeding,grooming,boarding,training,medical and registration with the CKC(Continental Kennel Club).Puppies will have health certificates from vets.
To see videos of the puppies and their parents, go to YouTube and search: American Malinois Foundation.
•MiniSchnauzers(雪纳瑞犬)
We have 4 males and 4 females.Our puppies come with a health guarantee.They are trained and all of them have great personalities and would be a great addition to any home.These puppies are for pets only.To keep our bloodlines pure, we do not allow our puppies to be bred. We have been breeding for over 13 years and we only breed Mini Schnauzers. They are the best dogs. They are very smart. We will not ship our puppies. We have had people drive over 1500 miles to purchase our babies.
1..From Paragraph 3,we can infer that the American Malinois is .
A.lonely B.active
C.experienced D.loyal
2.Which of the following can be used to describe Mini Schnauzers?
A.Socialized and cute. B.Clever and brave.
C.Healthy and clever. D.Professional and strong.
3.What is the author’ s purpose in writing this passage?
A.To show two kinds of dogs he loves.
B.To advertise two kinds of dogs on sale.
C.To show that dogs are our best friends.
D.To prove that dogs are well-trained.
高二英语阅读理解中等难度题查看答案及解析
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
How to Keep a Healthy and Strong Relationship
Are you new to experiencing relationships?Well,let me give you advice on having a healthy and possibly long-term relationship.
1. Do not hide things from them and do not lie.Don’t be afraid to say things that aren’t very flattering about yourself.Getting them to trust you is the most important element in any relationship.If there’s no trust,there’s nothing there.So please be honest and they’ll learn to open up to you.
Make sure you give them respect.Now respect isn’t just simply treating her or him nicely.There’s a lot more about it.You have to learn to adjust to their liking. 2. Don’t just think about yourself;think about what your partner needs as well.
3. Always be willing to help them and give them honesty and positivity at the same time.Make them feel you are someone they can really count on and build a future with.This is an important step in a relationship.Your partner has to be able to count on you when needed.
Make sure you have a good sense of humor with them.Laughter is the key to happiness.Laugh a lot with them and joke with them.Laughter may seem silly,but it’s the secret to a lot in life.It will keep the sparks alive. 4.
Make sure the communication is good.This goes along with trust,but always communicate how you feel,even if it’s something that upsets you.Instead of screaming,talk to them. 5. It’s important to communicate with them.Don’t keep it bottled up.
A.Show them your personality.
B.Be an honest person with them.
C.Make sure you are reliable to your partner.
D.Laughter keeps the relationship strong and lasting.
E.Don’t start to neglect them and make them feel unwanted.
F.Basically,learn to study your partners’ moods,wants and needs.
G.If they did something that made you unhappy,tell them about it in a respectful manner.
高二英语七选五中等难度题查看答案及解析
Consider the tomato: easy to grow, healthy to eat, tasty in just about any recipe and pleasant to look at. And come late summer, in steady supply. Though you can find it during the coldest winter months, August is the tomato's season to shine. Farmers' markets and grocery stores are bursting with lesser-known but arguably tastier varieties, including purple cherries and big heirlooms.
"Heirlooms ripened on the vine(藤) are the tastiest of all tomatoes," says Amy Goldman Fowler, author of The Heirloom Tomato. "I think their beauty is more than skin-deep." Heirloom seeds have been around for at least 50 years, often passed down from generation to generation. You may hear cherry or heirloom used to describe a tomato at hand, but there are many different kinds of tomatoes, and growers have fun giving catchy names to varieties: Mortgage Lifters, Beefsteaks, Oxhearts, Early Girls.
And all of them come with health benefits. Tomatoes are a good source of the antioxidant lycopene (抗氧化番茄红素), which is thought to help lower a person's risk for heart problems and cancer. Tomatoes also contain healthy vitamins(维生素) A and C. For the best fruit (they're fruits, not vegetables), choose tomatoes with shiny, firm skin and a little give, and store them at room temperature away from direct sunlight. Keep them out of the fridge, since cold temperatures can affect the original taste.
"They satisfy something more than just taste," says Fowler. "Tomatoes feed your soul."
1.In which season do tomatoes sell best?
A. Spring. B. Summer.
C. Autumn. D. Winter.
2.What can you learn from the passage?
A. Tomatoes are healthy vegetables.
B. Direct sunlight helps to store tomatoes.
C. Tomatoes go bad more quickly in the fridge.
D. Heirlooms are tastier than the other tomatoes.
3.Why do tomatoes benefit people?
A. They can produce antioxidant lycopene.
B. They may prevent some diseases.
C. They can be used as medicine.
D. They may make people's skin shiny.
高二英语阅读理解中等难度题查看答案及解析
假如你班将举行一次英语班会,主题为“How to be strong and healthy”。请你根据下面提示写一篇发言稿。
存在问题 | 部分中学生身体素质差 |
解决方法 | 1. 充足的睡眠 2. 加强锻炼,增加户外活动 3. 定时吃饭,少吃零食 4. 养成讲卫生的习惯 |
注意:1。字数120左右;
2.生词:零食:non-staple food 卫生:hygiene
3.开头已给出.可适当发挥。
Dear friends,
高二英语书面表达中等难度题查看答案及解析
Henry hasn't missed a chance to _______ his muscles to others since being praised for his strong figure.
A.show off B.show up C.put off D.put up
高二英语单项填空简单题查看答案及解析
I love this healthy diet program because, it helps you lose weight, lose inches, feel healthy and look beautiful.
This healthy diet is an 8 week's program which is unlike other diet regimes (食物疗法). In that it focuses on proper nutrition first and weight loss second. Your body must have proper levels of minerals, vitamin, and protein in order to work well. It provides a simple lifestyle change to give you more energy and improve your health most greatly. It offers control over stomach and continuing hunger with a dense diet allowing 1,700 to 2,000 calories a day. If a person has a weight problem, their body probably is not working at proper levels of basic nutrients. We invite you to follow this program, so you can be the slim person who lives inside you.
You too, can love dieting especially if you are losing weight and losing inches.
For more information about our program, please get to our address in the internet:
http://www. Shaidee. net/lifestyle-for-heath/products
1. This passage is mainly about ________.
A. how people should keep fit B. a healthy diet program
C. why people should keep fit D. ways to lose weight
2.The underlined phrase "lose inches" in the passage means ________.
A. become shorter B. become taller
C. become fatter D. become thinner
3. According to this passage, all of the following are true except that ________.
A. this program makes a change in your lifestyle
B. this program can stop you from feeling hungry all the time
C. this program allows you 1,700 to 2,000 calories for each meal
D. this program tries to tell us what people should do to become slim
高二英语阅读理解中等难度题查看答案及解析
All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer.
1. They buy tickets or turn on their TVs to watch the games. Often they get very excited when their player or team wins.
2. Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy! 3. Think how many lovers to skate or ski in Japan, Norway or Canada.
Some sports or game go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet. 4. Water-skiing is one of the newest in the family of sports.
People from different countries may not be able to understand each other, but after a game together they often become good friends. 5. One learns to fight hard but fight fair, to win without pride and to lose with grace.
A.And think of people in cold countries.
B.Sports help to train a person’s character.
C.Not a few people participate in different sports competitions themselves.
D.Many people like to watch others play games.
F.People aren’t inventing new sports or games.
E.Some sports are so interesting that people everywhere take part in them.
G.People are inventing new sports or games all the time.
高二英语七选五中等难度题查看答案及解析
All over the world people enjoy sports, Sports help to keep people healthy and happy, and to live longer.
Many people like to watch others play games. They buy tickets or turn on their TVs to watch the games. Often they get very excited when "their" player or team wins.
Some sports are so interesting that people everywhere go in for(参加) them. Football, for example, has spread(展开)around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy! And think of people in cold countries. Think how many love to skate or ski (滑雪) in Japan, Norway or Canada.
Some sports or games go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet. People are inventing new sports or games all the time. Water-skiing is one of the newest in the family of sports.
People from different countries may not be able to understand each other, but after a game together they often become good friends. Sports help to train(培养,训练) a person’s character(性格,品格). One learns to fight hard but fight fair, to win without pride and to lose with grace(胜不骄,败不馁).
1.Why do people all over the world enjoy sports?
A. Because they are healthy.
B. Because they are happy.
C. Because they want to live longer.
D. All the above.
2.Why do some people get excited when they watch a game? Because
A. their favourite team wing
B. they win the game
C. they get the good news
D. they can’t help themselves
3. Which of the sports has a long history?
A. Water-skiing. B. Basketball.
C. Volleyball. D. Long jump.
4. Why do people from different countries often become friends after a game together?
Because
A. they train their character in the game
B. they understand each other
C. they are friendly to each other
D. they help each other
高二英语阅读理解中等难度题查看答案及解析
All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer.
1. They buy tickets or turn on their TVs to watch the games. Often they get very excited when their player or team wins.
2. Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy! 3. Think how many lovers to skate or ski in Japan, Norway or Canada.
Some sports or game go back thousands of years like running or jumping. Chinese Wushu, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet. 4. Water-skiing is one of the newest in the family of sports.
People from different countries may not be able to understand each other, but after a game together they often become good friends. 5. One learns to fight hard but fight fair, to win without pride and to lose with grace.
A. And think of people in cold countries.
B. Sports help to train a person’s character.
C. Not a few people participate in different sports competitions themselves.
D. Many people like to watch others play games.
E. People aren’t inventing new sports or games.
F. Some sports are so interesting that people everywhere take part in them.
G. People are inventing new sports or games all the time.
高二英语其他题中等难度题查看答案及解析