Now, we know that if we do not get enough vitamins, we are at risk of developing a number of diseases. As a result, vitamin supplements(补品),though expensive, are popular with people who worry that they are not getting enough vitamins from the foods they eat. But contrary to what many people think, medical experts have found little evidence that most supplements do anything to improve health or protect against disease.
In fact, medical experts warn that taking too many of some vitamins can be harmful. For example, too much vitamin E can cause bleeding. People should discuss what vitamins they take with their doctors, as some vitamins can produce harmful side effects when mixed with medicines.
Experts, however, say that sometimes vitamins can help prevent disease. People who know they lack a particular vitamin should take vitamin supplements. Some older adults, for example, may not have enough vitamin B-twelve. This is because, as people get older, their body loses its ability to take it from foods. Also, people who spend much time inside may need some extra vitamin D as the skin makes this vitamin from sunlight.
Different vitamins are found in different foods. Vitamin A is found in fish liver oil. It also is in the yellow part of eggs. Sweet potatoes, carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A. Vitamin B-twelve is found in green leafy vegetables and other foods, like fruits. Vitamin K can be found in pork products.
In fact, for most people, a balanced diet can ensure enough of the vitamins our bodies need. So, it is important for us to eat a mixture of foods every day to ensure that we get enough vitamins our bodies need.
1.What is probably talked about before this passage?
A. How many vitamins a person’s body needs.
B. How many vitamins some foods contain.
C. The benefits that vitamins bring to our health.
D. What people should do to stay healthy.
2.Vitamin supplements are popular with people because ________.
A. people mistakenly think that they are good for their health
B. they contain more vitamins than the foods people eat
C. food does not provide enough vitamins people need
D. people fear that a lack of vitamins will lead to disease
3.From the passage, we can learn that medical experts advise people _________.
A. never to take any vitamin supplements
B. to depend only on food for their vitamins
C. not to take any vitamins together with medicines
D. to consult doctors before taking vitamin supplements
4.For people who lack Vitamin B-twelve, they can eat more from _______.
A. sweet potatoes B. green leafy vegetables
C. pork products D. eggs
高二英语阅读理解中等难度题
Now, we know that if we do not get enough vitamins, we are at risk of developing a number of diseases. As a result, vitamin supplements(补品),though expensive, are popular with people who worry that they are not getting enough vitamins from the foods they eat. But contrary to what many people think, medical experts have found little evidence that most supplements do anything to improve health or protect against disease.
In fact, medical experts warn that taking too many of some vitamins can be harmful. For example, too much vitamin E can cause bleeding. People should discuss what vitamins they take with their doctors, as some vitamins can produce harmful side effects when mixed with medicines.
Experts, however, say that sometimes vitamins can help prevent disease. People who know they lack a particular vitamin should take vitamin supplements. Some older adults, for example, may not have enough vitamin B-twelve. This is because, as people get older, their body loses its ability to take it from foods. Also, people who spend much time inside may need some extra vitamin D as the skin makes this vitamin from sunlight.
Different vitamins are found in different foods. Vitamin A is found in fish liver oil. It also is in the yellow part of eggs. Sweet potatoes, carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A. Vitamin B-twelve is found in green leafy vegetables and other foods, like fruits. Vitamin K can be found in pork products.
In fact, for most people, a balanced diet can ensure enough of the vitamins our bodies need. So, it is important for us to eat a mixture of foods every day to ensure that we get enough vitamins our bodies need.
1.What is probably talked about before this passage?
A. How many vitamins a person’s body needs.
B. How many vitamins some foods contain.
C. The benefits that vitamins bring to our health.
D. What people should do to stay healthy.
2.Vitamin supplements are popular with people because ________.
A. people mistakenly think that they are good for their health
B. they contain more vitamins than the foods people eat
C. food does not provide enough vitamins people need
D. people fear that a lack of vitamins will lead to disease
3.From the passage, we can learn that medical experts advise people _________.
A. never to take any vitamin supplements
B. to depend only on food for their vitamins
C. not to take any vitamins together with medicines
D. to consult doctors before taking vitamin supplements
4.For people who lack Vitamin B-twelve, they can eat more from _______.
A. sweet potatoes B. green leafy vegetables
C. pork products D. eggs
高二英语阅读理解中等难度题查看答案及解析
Now, we know that if we do not get enough vitamins, we are at risk of developing a number of diseases. As a result, vitamin supplements(补品),though expensive, are popular with people who worry that they are not getting enough vitamins from the foods they eat. But contrary to what many people think, medical experts have found little evidence that most supplements do anything to improve health or protect against disease.
In fact, medical experts warn that taking too many of some vitamins can be harmful. For example, too much vitamin E can cause bleeding. People should discuss what vitamins they take with their doctors, as some vitamins can produce harmful side effects when mixed with medicines.
Experts, however, do say that sometimes vitamins can help prevent disease. People who know they lack a particular vitamin should take vitamin supplements. Some older adults, for example, may not have enough vitamin B-twelve. This is because, as people get older, their body loses its ability to take it from foods. Also, people who spend much time inside may need some extra vitamin D as the skin makes this vitamin from sunlight.
Different vitamins are found in different foods. Vitamin A is found in fish liver oil. It also is in the yellow part of eggs. Sweet potatoes, carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A. Vitamin B-twelve is found in green leafy vegetables and other foods, like fruits. Vitamin K can be found in pork products.
In fact, for most people, a balanced diet can ensure enough of the vitamins our bodies need. So, it is important for us to eat a mixture of foods every day to ensure that we get enough vitamins our bodies need.
1.Vitamin supplements are popular with people because ________.
A.people mistakenly think that they are good for their health |
B.they contain more vitamins than the foods people eat |
C.food does not provide enough vitamins people need |
D.people fear that a lack of vitamins will lead to disease |
2.From the passage, we can learn that medical experts advise people _________.
A.never to take any vitamin supplements |
B.to depend only on food for their vitamins |
C.not to take any vitamins together with medicines |
D.to consult doctors before taking vitamin supplements |
3.For people who lack Vitamin B-twelve, they can eat more from _______.
A. sweet potatoes B. pork products C. green leafy vegetables D. eggs
42. What would be the best title of the passage?
A. Getting enough vitamins through a balanced diet.
B. Vitamin supplements do harm to our health.
C. Vitamins are important to our health.
D. Lacking vitamins can cause many diseases.
高二英语阅读理解困难题查看答案及解析
Have you ever stayed up late? If so, you know that not getting enough sleep can leave you tired and grumpy . Not sleeping enough can also make it harder to think clearly the next day.
Sleep experts have long known that getting a good night’s sleep is important.
It helps kids perform their best during the day. A recent study shows that sleep helps improve problem--- solving skills and creative thinking.
For the study, two groups of volunteers answered a math problem. The group that slept for eight hours solved the problem correctly more often than the group that did not get enough sleep.
While you sleep, your brain is busy doing its “homework”. It sorts out information from your day. Getting enough sleep each night can boost your brainpower. That will help you do your best in school. Experts say that, in return, can lead to better grades.
1.What is the best title for the passage?
A.Too Much Sleep | B.It’s Homework Time |
C.Sleep to Succeed | D.Math Problems |
2.The underlined word “boost” in paragraph 5 means ________.
A.reduce | B.improve |
C.disturb | D.worsen |
3.Why is sleep important?
A.It can improve problem-solving skills and creative thinking |
B.It will help you do your best in school |
C.It helps your brain sort out information from your day. |
D.All of the above |
4. What did the results of a recent sleep study show?
A.People who sleep enough are good at math |
B.Sleep is important for learning |
C.If you get enough sleep, you don’t have to do your homework |
D.Adults need more sleep than kids |
高二英语阅读理解中等难度题查看答案及解析
We all know that, _______, the situation will get worse.
A. not if dealt carefully with B. if not carefully dealt with
C. if dealt not carefully with D. not if carefully dealt with
高二英语单项填空中等难度题查看答案及解析
语法填空
There are many things we need to know but do not learn at school. For example, if we want to use our money1.(wise), we need to shop carefully. We need to know how to compare the prices and quality. We need to know how to make2.best decision when we shop. Knowing how to make such decisions 3.(be) a life skill, and we need these skills if we are to lead useful and happy lives.
Some of the decisions are small. For example, will I take an apple or a pear4.lunch? Will I take the bus to school today or will I walk? Others are more important. For example, will I eat healthy food 5.will I eat junk food because it is 6.(tasty)? We make decisions like this every day.7., making the wrong ones can result 8.unhappiness. We have to realize that the 9.(choose) we make can affect the rest of our lives, and it can also affect other people. Next time you decide 10.(waste) time in class, play a joke on someone or talk loudly at the movies, consider this: who else does your decision affect?
高二英语语法填空简单题查看答案及解析
It is rather that we still do not know how many species there are in the world today.
A.misleading B.embarrassing
C.boring D.demanding
高二英语单项填空中等难度题查看答案及解析
It is rather ______ that we still do not know how many species there are in the world today.
A.misleading B.embarrassing C.boring D.demanding
高二英语单项填空中等难度题查看答案及解析
Smiles and tears are part of life. But do you find enough time for laughing? I’m not asking if you experience lots of good times. Of course, we should laugh during the happy times. ________1.________.________2.________But she wrote one about a more serious subject--cancer in children. The book is titled I WANT TO GROW HAIR, I WANT TO GROW UP. Erma talks with many children who have cancer and learns important lessons from them. She learns, for example, that cancer survivors(幸存者)know how they should smile at life, though they are receivingchemotherapy(化疗).
________3.________.Jessica’s leg was cut off at the knee because of cancer. She was learning to wear a prosthesis(假肢). Jessica told about playing soccer. She hit the ball hard with her foot. The ball flew off in one direction while her man-made leg flew another way. Then the brave girl lay on the floor, laughing happily.
As the saying goes, “________4.________” Do you find plenty of time to laugh?
You can, if you find reasons to laugh during the difficult times. Survivors know how to laugh. If you can laugh even when you’re in trouble, you will make it. Remember, laugh and the whole world laughs with you. ________5.________.
A.We just laugh about it.
B.Cry and you cry alone!
C.There’s a time to cry and a time to laugh.
D.Erma Bombeck is known for her funny books.
E. But do you also laugh during the difficult times?
F. She tells about the experience of 15-year-old Jessica.
G. I still remember those happy days when we were at college.
高二英语信息匹配中等难度题查看答案及解析
Smiles and tears are part of life. But do you find enough time for laughing? I’m not asking if you experience lots of good times. Of course, we should laugh during the happy times. 1..
2.But she wrote one about a more serious subject--cancer in children. The book is titled I WANT TO GROW HAIR, I WANT TO GROW UP. Erma talks with many children who have cancer and learns important lessons from them. She learns, for example, that cancer survivors know how they should smile at life, though they are receiving chemotherapy(化疗).
3..Jessica’s leg was cut off at the knee because of cancer. She was learning to wear a prosthesis(假肢). Jessica told about playing soccer. She hit the ball hard with her foot. The ball flew off in one direction while her man-made leg flew another way. Then the brave girl lay on the floor, laughing happily.
As the saying goes, “4.” Do you find plenty of time to laugh?
You can, if you find reasons to laugh during the difficult times. Survivors know how to laugh. If you can laugh even when you’re in trouble, you will make it. Remember, laugh and the whole world laughs with you. 5..
A. We just laugh about it.
B. Cry and you cry alone!
C. There’s a time to cry and a time to laugh.
D. Erma Bombeck is known for her funny books.
E. But do you also laugh during the difficult times?
F. She tells about the experience of 15-year-old Jessica.
G. I still remember those happy days when we were at college.
高二英语信息匹配中等难度题查看答案及解析
We all know that language can sometimes get lost in translation. But do you know that some facial 1. may also be2. in cross-cultural situations?
According to a study by Glasgow University, Europeans look3. a person's whole face 4. people from East Asia focus 5.on the eyes. Researchers recorded the eye movements of 13 Westerners and 13 Easterners as they observed pictures of expressive faces. They were asked to6.the pictures into the following categories: happy, sad, surprised, fearful, disgusted, angry, or neutral.
The team found East Asians focus much more attention on the eyes and also make a 7.number of mistakes. Different from Europeans, they8. to have a more difficult time ________9.________the difference between a face that looks fearful as opposed to surprised, and disgusted as opposed to angry.
"Westerners look at the eyes and the mouth10. , whereas Easterners11.the eyes and neglect the mouth," said researcher Rachael Jack. "This means that Easterners have12. in telling apart facial expressions that look similar around the eye region."
Jack said that the differences in eye movement reflected a cultural13.in the way people use their faces to express themselves. Easterners use the eyes more and the mouth 14. .
The difference in the use of text message "emoticons" (表情符号) 15.________the idea. Easterners use the eyes to16.________emotion, for example "^-^" for happy and "┬_┬" for sad. Westerners, 17., use the mouth, for example ":-)" for happy and ":-(" for sad.
The researchers said their results showed communication between people is much more18.________than previously thought. When it 19.________communicating emotions across cultures, Easterners and Westerners can find themselves20.in translation.
21. A. expressions B. appearances C. features D. differences
22. A. interesting B. confusing C. outstanding D. surprising
23. A. across B. for C. on D. into
24.A. when B. as C. while D. if
25.A. really B. mainly C. slightly D. nearly
26. A. make B. turn C. get D. put
27. A. small B. big C. fewer D. larger
28.A. need B. attempt C. tend D. intend
29. A. saying B. telling C. knowing D. judging
30.A. in a different way B. in equal measure C. in turns D. alternatively
31. A. favor B. approve C. find D. focus
32. A. difficulty B. ability C. possibility D. certainty
33. A. interest B. gap C. similarity D. concern
34. A. little B. least C. less D. more
35. A. supports B. opposes C. rejects D. counts
36. A. make B. create C. convey D. prove
37. A. therefore B. however C. although D. moreover
38. A. separated B. related C. expected D. complicated
39. A. comes to B. talks about C. turns to D. gets to
40. A. puzzling B. lost C. exciting D. upset
高二英语完形填空简单题查看答案及解析