Anyone with a passing interest in their health will be able to rattle__off a few of the major vitamins, and possibly take an educated guess at what they do. Vitamin C, found in oranges and other fruit and vegetables, is important for wound repair. And the much－talked－about ‘sunshine’ Vitamin D, produced by the skin in response to UV light, is essential for strong bones.
But Vitamin P? It might well have you scratching your head. And that's not surprising: the term was first coined in the 1930s to describe a small group of compounds that provide pigment(天然色素) to plants, and were believed to have health benefits. Fast－forward almost a century and these compounds are now better known as flavonoids.
Today, scientists have identified between 4，000 and 6，000 different kinds and we now know they are responsible for many of the flavors and smells of fruit and vegetables and also that they protect them from invaders such as pests and bacteria.
They are equally important nutrients for the body, helping maintain bones and teeth, and for the production of the protein collagen(胶原), which provides structure to blood vessels, muscles and skin.
They are also said to help the body deal with some of the key drivers of illness, including oxidation(氧化), a natural process by which the body's cells age and can become damaged and defective(有缺陷的). That means they could help to protect against chronic diseases including cancer and heart disease.
1.Which of the following best explains “rattle off” underlined in Paragraph 1?
A. Quickly say. B. Quickly pass.
C. Quickly find. D. Quickly take.
2.What do we know about Vitamin P?
A. We would scratch our head if we took it.
B. It was made into a coin in the 1930s.
C. People didn't think it beneficial in the past.
D. It refers to the compounds also called flavonoids.
3.How many functions of Vitamin P for humans are mentioned?
A. Four. B. Three.
C. Two. D. One.
4.How does Vitamin P help slow the aging process?
A. By dealing with oxidation.
B. By maintaining bones.
C. By strengthening muscle.
D. By protecting against chronic diseases.
高三英语阅读理解中等难度题
Anyone with a passing interest in their health will be able to rattle__off a few of the major vitamins, and possibly take an educated guess at what they do. Vitamin C, found in oranges and other fruit and vegetables, is important for wound repair. And the much－talked－about ‘sunshine’ Vitamin D, produced by the skin in response to UV light, is essential for strong bones.
But Vitamin P? It might well have you scratching your head. And that's not surprising: the term was first coined in the 1930s to describe a small group of compounds that provide pigment(天然色素) to plants, and were believed to have health benefits. Fast－forward almost a century and these compounds are now better known as flavonoids.
Today, scientists have identified between 4，000 and 6，000 different kinds and we now know they are responsible for many of the flavors and smells of fruit and vegetables and also that they protect them from invaders such as pests and bacteria.
They are equally important nutrients for the body, helping maintain bones and teeth, and for the production of the protein collagen(胶原), which provides structure to blood vessels, muscles and skin.
They are also said to help the body deal with some of the key drivers of illness, including oxidation(氧化), a natural process by which the body's cells age and can become damaged and defective(有缺陷的). That means they could help to protect against chronic diseases including cancer and heart disease.
1.Which of the following best explains “rattle off” underlined in Paragraph 1?
A.Quickly say. B.Quickly pass.
C.Quickly find. D.Quickly take.
2.What do we know about Vitamin P?
A.We would scratch our head if we took it.
B.It was made into a coin in the 1930s.
C.People didn't think it beneficial in the past.
D.It refers to the compounds also called flavonoids.
3.How many functions of Vitamin P for humans are mentioned?
A.Four. B.Three.
C.Two. D.One.
4.How does Vitamin P help slow the aging process?
A.By dealing with oxidation.
B.By maintaining bones.
C.By strengthening muscle.
D.By protecting against chronic diseases.
高三英语阅读理解中等难度题查看答案及解析
Anyone with a passing interest in their health will be able to rattle__off a few of the major vitamins, and possibly take an educated guess at what they do. Vitamin C, found in oranges and other fruit and vegetables, is important for wound repair. And the much－talked－about ‘sunshine’ Vitamin D, produced by the skin in response to UV light, is essential for strong bones.
But Vitamin P? It might well have you scratching your head. And that's not surprising: the term was first coined in the 1930s to describe a small group of compounds that provide pigment(天然色素) to plants, and were believed to have health benefits. Fast－forward almost a century and these compounds are now better known as flavonoids.
Today, scientists have identified between 4，000 and 6，000 different kinds and we now know they are responsible for many of the flavors and smells of fruit and vegetables and also that they protect them from invaders such as pests and bacteria.
They are equally important nutrients for the body, helping maintain bones and teeth, and for the production of the protein collagen(胶原), which provides structure to blood vessels, muscles and skin.
They are also said to help the body deal with some of the key drivers of illness, including oxidation(氧化), a natural process by which the body's cells age and can become damaged and defective(有缺陷的). That means they could help to protect against chronic diseases including cancer and heart disease.
1.Which of the following best explains “rattle off” underlined in Paragraph 1?
A. Quickly say. B. Quickly pass.
C. Quickly find. D. Quickly take.
2.What do we know about Vitamin P?
A. We would scratch our head if we took it.
B. It was made into a coin in the 1930s.
C. People didn't think it beneficial in the past.
D. It refers to the compounds also called flavonoids.
3.How many functions of Vitamin P for humans are mentioned?
A. Four. B. Three.
C. Two. D. One.
4.How does Vitamin P help slow the aging process?
A. By dealing with oxidation.
B. By maintaining bones.
C. By strengthening muscle.
D. By protecting against chronic diseases.
高三英语阅读理解中等难度题查看答案及解析
Anyone caring about their health will be able to speak out a few of the major vitamins, and possibly take an educated guess at what they do. Vitamin C, found in oranges and other fruit and vegetables, is important for wound repair. And the much-talked-about “sunshine” vitamin D, produced by the skin in response to UV light, is essential for strong bones.
But what about vitamin P? It might well have you scratching your head. And that's not surprising: the term was first coined in the 1930s to describe a small group of compounds that provide pigment (天然色素) to plants, and were believed to have health benefits. A century later, these compounds are now better known as flavonoids (类黄酮)．
Today, scientists have identified between 4,000 and 6,000 different kinds and we now know they are responsible for many of the flavors and smells of fruit and vegetables and also that they protect them from invaders such as pests and bacteria.
They are equally important nutrients for the body, helping maintain bones and teeth, and for the production of the protein collagen (胶原), which provides structure to blood vessels, muscles and skin.
They are also said to help the body deal with some of the key drivers of illness, including oxidation (氧化), a natural process by which the body's cells age and can become damaged and defective. That means they could help to protect against chronic diseases including cancer and heart disease.
1.What do we know about vitamin P?
A.We would scratch our head if we took it.
B.It refers to the compounds also called flavonoids.
C.It was made into a coin in the 1930s.
D.People didn't think it beneficial in the past.
2.Which is NOT the function of vitamin P for humans according to the passage?
A.Helping maintain bones and teeth.
B.Assisting in producing protein collagen.
C.Accelerating the circulation of the blood.
D.Aiding the body to handle the main factors of illness.
3.Which of the following best explains “defective” underlined in the last paragraph?
A.Harmful. B.Discouraged.
C.Vague. D.Deficient.
4.How does vitamin P help slow the aging process?
A.By fighting against oxidation. B.By maintaining bones.
C.By strengthening muscles. D.By protecting against chronic diseases.
高三英语阅读理解中等难度题查看答案及解析
Anyone who cares about what schools and colleges teach and how their students learn will be interested in the memoir (回忆录) of Ralph W. Tyler, who is one of the most famous men in American education.
Born in Chicago in 1902, brought up and schooled in Nebraska, the 19-year-old college graduate Ralph Tyler became hooked on teaching while teaching as a science teacher in South Dakota and changed his major 1mm medicine to education.
Graduate work at the University of Chicago found him connected with honorable educators Charles Judd and W. W. Charters, whose ideas of teaching and testing had an effect on his later work. In 1927, he became a teacher of Ohio State University where he further developed a new method of testing.
Tyler became well-known nationally in 1938. when he carried his work with the Eight-Year Study from Ohio State University to the University of Chicago at the invitation of Robed Hutchins.
Tyler was the first director of the Center for Advanced Study in the Behavioral Sciences at Stanford, a position he held for fourteen years. There, he firmly believed that researchers should be free to seek an independent（独立的）spirit in their work.
Although Tyler officially retired in 1967, he never actually retired. He served on a long list of educational organizations in the United States and abroad. Even in his 80s he traveled across the country to advise teachers and management people on how to set objectives (目标) that develop the best teaching and learning within their schools.
1.Who are most probably interested in Ralph W. Tyler’s memoir?
A. Top managers. B. Language learners.
C. Serious educators. D. science organizations.
2.The words “hooked on teaching” underlined in Paragraph 2 probably mean ______
A. attracted to teaching B. tired of teaching
C. satisfied with teaching D. unhappy about teaching
3.Where did Tyler work as the leader of a research center for over 10 years?
A. The University of Chicago. B. Stanford University.
C. Ohio State University. D. Nebraska University.
4.Tyler is said to have never actually retired because _________
A. he developed a new method of testing B. he called for free spirit in research
C. he was still active in giving advice D. he still led the Eight-Year Study
高三英语阅读理解中等难度题查看答案及解析
Anyone who cares about what schools and colleges teach and how their students learn will be interested in the memoir（回忆录）of Ralph W. Tyler, who is one of the most famous men in American education.
Born in Chicago in 1902, brought up and schooled in Nebraska, the 19-year-old college graduate Ralph Tyler became hooked on teaching while teaching as a science teacher in South Dakota and changed his major from medicine to education.
Graduate work at the University of Chicago found him connected with honorable educators Charles Judd and W. W. Charters, whose ideas of teaching and testing had an effect on his later work. In 1927, he became a teacher of Ohio State University where he further developed a new method of testing.
Tyler became well-known nationality in 1938, when he carried his work with the Eight-Year Study from Ohio State University to the University of Chicago at the invitation of Robert Hutchins.
Tyler was the first director of the Center for Advanced Study in the Behavioral Sciences at Stanford, a position he held for fourteen years. There, he firmly believed that researchers should be free to seek an independent（独立的）spirit in their work.
Although Tyler officially retired in 1967, he never actually retired. He served on a long list of educational organizations in the United States and abroad. Even in his 80s he traveled across the country to advise teachers and management people on how to set objectives（目标）that develop the best teaching and learning within their schools.
1.Who are most probably interested in Ralph W. Tyler’s memoir?
A. Top managers. B. Language learners.
C. Serious educators. D. Science organizations.
2.The words “hooked oh teaching” underlined in Paragraph 2 probably mean ________.
A. attracted to teaching B. tired of teaching
C. satisfied with teaching D. unhappy about teaching
3.Where did Tyler work as the leader of a research center for over 10 years?
A. The University of Chicago. B. Stanford University.
C. Ohio State University. D. Nebraska University.
高三英语阅读理解中等难度题查看答案及解析
Anyone who cares about what schools and colleges teach and how their students learn will be interested in the memoir（回忆录）of Ralph W. Tyler, who is one of the most famous men in American education.
Born in Chicago in 1902, brought up and schooled in Nebraska, the 19-year-old college graduate Ralph Tyler became hooked on teaching while teaching as a science teacher in South Dakota and changed his major from medicine to education.
Graduate work at the University of Chicago found him connected with honorable educators Charles Judd and W. W. Charters, whose ideas of teaching and testing had an effect on his later work. In 1927, he became a teacher of Ohio State University where he further developed a new method of testing.
Tyler became well-known nationality in 1938, when he carried his work with the Eight-Year Study from Ohio State University to the University of Chicago at the invitation of Robert Hutchins.
Tyler was the first director of the Center for Advanced Study in the Behavioral Sciences at Stanford, a position he held for fourteen years. There, he firmly believed that researchers should be free to seek an independent（独立的）spirit in their work.
Although Tyler officially retired in 1967, he never actually retired. He served on a long list of educational organizations in the United States and abroad. Even in his 80s he traveled across the country to advise teachers and management people on how to set objectives（目标）that develop the best teaching and learning within their schools.
1.Who are most probably interested in Ralph W. Tyler’s memoir?
A. Top managers. B. Language learners.
C. Serious educators. D. Science organizations.
2.The words “hooked oh teaching” underlined in Paragraph 2 probably mean ________.
A. attracted to teaching B. tired of teaching
C. satisfied with teaching D. unhappy about teaching
3.Where did Tyler work as the leader of a research center for over 10 years?
A. The University of Chicago. B. Stanford University.
C. Ohio State University. D. Nebraska University.
4.Tyler is said to have never actually retired because ____________.
A. he developed a new method of testing B. he called for free spirit in research
C. he was still active in giving advice D. he still led the Eight-Year Study
高三英语阅读理解中等难度题查看答案及解析
Anyone who cares about what schools and colleges teach and how their students learn will be interested in the memoir（回忆录）of Ralph W. Tyler, who is one of the most famous men in American education.
Born in Chicago in 1902, brought up and schooled in Nebraska, the 19-year-old college graduate Ralph Tyler became hooked on teaching while teaching as a science teacher in South Dakota and changed his major from medicine to education.
Graduate work at the University of Chicago found him connected with honorable educators Charles Judd and W. W. Charters, whose ideas of teaching and testing had an effect on his later work. In 1927, he became a teacher of Ohio State University where he further developed a new method of testing.
Tyler became well-known nationality in 1938, when he carried his work with the Eight-Year Study from Ohio State University to the University of Chicago at the invitation of Robert Hutchins.
Tyler was the first director of the Center for Advanced Study in the Behavioral Sciences at Stanford, a position he held for fourteen years. There, he firmly believed that researchers should be free to seek an independent spirit in their work.
Although Tyler officially retired in 1967, he never actually retired. He served on a long list of educational organizations in the United States and abroad. Even in his 80s he traveled across the country to advise teachers and management people on how to set objectives（目标）that develop the best teaching and learning within their schools.
1.Who are most probably interested in Ralph W. Tyler’s memoir?
A. Top managers. B. Language learners.
C. Serious educators. D. Science organizations.
2.The words “hooked on teaching” underlined in Paragraph 2 probably mean ________.
A. attracted to teaching B. tired of teaching
C. satisfied with teaching D. unhappy about teaching
3.Where did Tyler work as the leader of a research center for over 10 years?
A. The University of Chicago. B. Stanford University.
C. Ohio State University. D. Nebraska University.
高三英语阅读理解中等难度题查看答案及解析
Anyone who would like to check their vision from the comfort of their own home may be interested in a new automated eye test called the EyeQue VisionsCheck. The new technology is a device that is used with a smartphone to help check your vision whenever you like.
The device tests your eyes and gives you a number that tells you how good or bad your eyesight is. You can then take this result to an optician (验光师)to order a pair of glasses. It is more than just an eye check — you'll be able to measure and store results of your pupillary distance, get details at eyeque.com or in-app, upload prescriptions to compare vision history and use it to order your glasses online.
The new device is from a startup company called EyeQue. It has been used to test the eyes of 50,000 people. The company says the patented technology has shown all-time accuracy and received praises from many of the users over the past two years. The simple device costs just $30. An updated version will come out later this year and will cost between $50 to $70.
An EyeQue spokesman said the device was better than going to visit an optician. He said, "The reason for that is when you go to the eye doctor it's one moment in time. You may be having a bad day. You may be nervous. The doctor may be in a hurry. What we do is different measures over time. We are able to average it out, and we get a better result." However, the spokesman said the device wasn't a replacement for the optician. An optician will check for things the device cannot check for, like some eye diseases.
Renu Thapar, an optician said, "The EyeQue, used correctly and regularly, could actually speed up identification of problems which an optician could then help with. But VisionCheck. cannot completely substitute a regular eye test. After all, the condition of the eyes can be very complicated; you'd better see a medical professional."
1.What is the basic requirement for using this new technology?
A.Using a smartphone.
B.Consulting an optician.
C.Measuring pupillary distance.
D.Ordering glasses from their official website.
2.According to the EyeQue spokesman, why is their result more accurate?
A.It can identify eye diseases. B.It is a single professional test.
C.It is the average of multiple tests. D.It has the most advanced technology.
3.What can we learn from Renu Thapar's words?
A.The test results of VisionCheck are not reliable.
B.Frequent use of EyeQue may speed up eyes' problems.
C.VisionCheck should be used with the help of an optician.
D.VisionCheck can't completely replace a regular eye test.
4.What can be the best title for the text?
A.A New Way to Restore Eyesight
B.EyeQue VisionCheck DIY Eye Test
C.A New Device to Check for Eye Diseases
D.EyeQue VisionCheck, Substitue of Regular Eye Test
高三英语阅读理解中等难度题查看答案及解析
Young couples will be happy to see their babies _______ with good health and intelligence when they are born.
A. to bless B. blessing
C. blessed D. being blessed
高三英语单项填空困难题查看答案及解析
With online courses, anyone can gain knowledge in any field of interest for free. All you need is a computer, laptop or Smartphone, internet connection and a self-made schedule. You can even get a certificate on completing the course.
Udemy
Its goal is to promote the world of education by enabling anyone to learn online. It seeks to dramatically change education by inviting millions of experts worldwide to teach and share what they know. Whether you want to learn excel, business, academics, the arts, health, music or technology, there is a comprehensive course for you. See more at https://udemy.com
iTunes U
If you’re a student who uses Apple devices, you will be happy to know that you have access to iTunes U, which gives you access to different educational courses from all leading universities for free! Did you dream of studying at MIT, Oxford, Yale, or Cambridge? This is your chance to learn various subjects from the best colleges and universities in the world. Learn more at https://iTunesU.com
Skillfeed
If you are looking to learning a new skill, or improving on your skills in Photoshop, or HTML, it offers unlimited access to high-quality video courses from a worldwide community of instructors. You have a month’s free trial, after which you will pay a monthly fee to gain unlimited access to all courses. See more at https://skillfeed.com
Academic Earth
It has linked to over 750 online courses and 8,500 individual online lectures, giving students of all ages access to college courses they may otherwise never experience. Whether learning existing coursework, or learning for the sake of learning, anyone has the freedom to learn at their own pace from world-famous experts, without being charged more. Learn more at http://academicearth.com
UC Berkeley
It offers courses in bioengineering, Japanese, legal studies and public health. Since they are recordings of actual lectures, they lack lecture notes and extra materials. However, each course has audio recordings of lectures via iTunes or video recordings of lectures via YouTube. Learn more at https://ucberkeley.com
1.Learners who choose Skillfeed need to ________.
A. equip themselves with the ability to use the computer
B. pay some fee if they want to continue after a month
C. have some knowledge of the design of website
D. learn to upload their own high-quality video
2.We can learn from the passage that Academic Earth ________.
A. charges learners nothing for any course
B. has many lectures given by 8,500 lecturers
C. provides college courses mainly to young men
D. offers college courses at the learners’ convenience
3.If you want to improve your skill of Japanese language, you can visit ________.
A. https://skillfeed.com
B. https://ucberkeley.com
C. https://udemy.com
D. https://iTunesU.com
高三英语阅读理解中等难度题查看答案及解析