Nature is full of color, from rainbows and roses to butterfly wings and peacock tails. Even the fruits and vegetables you eat have different colors: blue blueberries, red strawberries, green broccoli, and orange carrots.
Plant and animals often use color to attract attention. The substances responsible for these colors belong to a class of chemical called antioxidants(抗氧化物). Plants make antioxidant to protect themselves from the sun’s ultraviolet(UV)(紫外线)light.
Ultraviolet light causes chemicals called free radicals(自由基)to form within plant cells. They can destroy parts of plant. Free radicals also have damaging effects on human beings. Some of these effects like wrinkled skin can be seen. The damage is caused by the free radicals attacking cells in our bodies. Certain cancers and heart disease are linked to free radicals.
Our bodies have natural defences for fighting off free radicals. While we are young, our defences are pretty strong. However, they get weaker as we get older. The body’s built-in defences can only go so far without extra help.
The key to fighting free radicals with fruits and vegetables is to mix and match colors. It’s like sunscreen(防晒霜)for the inside of your body. Go for a range of very bright colors. Colorful foods contain hundreds of healthy chemicals not found anywhere else.
Research into how chemicals in blueberries affect the brain’s function in rats suggests that these chemicals may help our own brains work more efficiently.
Don’t just blame the sun. Ultraviolet light isn’t the only source of free radicals. If you breathe polluted air such as smog, automobile exhaust(废气), or wasted gas from a factory, you take in chemicals that also cause such damage. And, the body itself produces free radicals as it processes food.
1.Which of the following not true?
A.Antioxidants are responsible for plant colors
B.Plants use color to attract attention
C.Antioxidants can protect plants from UV light
D.Antioxidants help free radicals to attack plants
2.In which order do the following facts occur?
a Wrinkled skin can be seen
b UV light causes free radicals to form
c Free radicals damage cells in our bodies
d The sun gives out UV light
A.a,b,c,d B.d,b,c,a
C.c,a,d,b D.d,b,a,c
3.We need extra help for fighting off free radicals from fruits and vegetables because ____.
A.our bodies’ defences are not natural
B.we are too young to defend ourselves
C.our defences get weaker as we get older
D.our bodies’ built-in defences can only go away
4.Which of the following can not cause free radicals to form?
A.Colorful food B.UV light from the sun
C.Polluted air D.The body itself
高二英语阅读理解中等难度题
Nature is full of color, from rainbows and roses to butterfly wings and peacock tails. Even the fruits and vegetables you eat have different colors: blue blueberries, red strawberries, green broccoli, and orange carrots.
Plant and animals often use color to attract attention. The substances responsible for these colors belong to a class of chemical called antioxidants(抗氧化物). Plants make antioxidant to protect themselves from the sun’s ultraviolet(UV)(紫外线)light.
Ultraviolet light causes chemicals called free radicals(自由基)to form within plant cells. They can destroy parts of plant. Free radicals also have damaging effects on human beings. Some of these effects like wrinkled skin can be seen. The damage is caused by the free radicals attacking cells in our bodies. Certain cancers and heart disease are linked to free radicals.
Our bodies have natural defences for fighting off free radicals. While we are young, our defences are pretty strong. However, they get weaker as we get older. The body’s built-in defences can only go so far without extra help.
The key to fighting free radicals with fruits and vegetables is to mix and match colors. It’s like sunscreen(防晒霜)for the inside of your body. Go for a range of very bright colors. Colorful foods contain hundreds of healthy chemicals not found anywhere else.
Research into how chemicals in blueberries affect the brain’s function in rats suggests that these chemicals may help our own brains work more efficiently.
Don’t just blame the sun. Ultraviolet light isn’t the only source of free radicals. If you breathe polluted air such as smog, automobile exhaust(废气), or wasted gas from a factory, you take in chemicals that also cause such damage. And, the body itself produces free radicals as it processes food.
1.Which of the following not true?
A.Antioxidants are responsible for plant colors
B.Plants use color to attract attention
C.Antioxidants can protect plants from UV light
D.Antioxidants help free radicals to attack plants
2.In which order do the following facts occur?
a Wrinkled skin can be seen
b UV light causes free radicals to form
c Free radicals damage cells in our bodies
d The sun gives out UV light
A.a,b,c,d B.d,b,c,a
C.c,a,d,b D.d,b,a,c
3.We need extra help for fighting off free radicals from fruits and vegetables because ____.
A.our bodies’ defences are not natural
B.we are too young to defend ourselves
C.our defences get weaker as we get older
D.our bodies’ built-in defences can only go away
4.Which of the following can not cause free radicals to form?
A.Colorful food B.UV light from the sun
C.Polluted air D.The body itself
高二英语阅读理解中等难度题查看答案及解析
Green is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants.
Sometimes, the word green means young, fresh and growing. Sometimes, it describes something that is not yet ripe or finished. For example, a greenhorn is someone who has no experience, who is new to a situation. In the fifteenth century, a greenhorn was a young cow or ox whose horns(角) had not yet developed. A century later, a greenhorn was a soldier who had not yet had any experience in battle. By the eighteenth century, a greenhorn had the meaning it has today—a person who is new in a job.
Someone who has the ability to grow plants well is said to have a green thumb. The expression comes from early nineteen hundreds. A person with a green thumb seems to have a magic touch that makes plants grow quickly and well. You might say that the woman next door has a green thumb if her garden continues to grow long after your plants have died.
The Green Revolution is the name given some years ago to the development of new kinds of rice and other grains. The new plants produced much larger crops. The Green Revolution was the result of hard work by agricultural scientists who had green thumbs.
Green is also the color used to describe the powerful feeling, jealousy(嫉妒). The green-eyed monster is not a frightening creature from outer space. It is an expression used about four hundred years ago by British writer William Shakespeare in his play “Othello”. It describes the unpleasant feeling a person has when someone has something he wants. A young man may suffer from the green-eyed monster if his girlfriend begins going out with someone else. Or, that green-eyed monster may affect your friend if you get a pay rise and he does not.
1.A greenhorn now refers to ____.
A. a cow without horns B. a new solider
C. a young horse D. a person who is new in a job
2.A person who has a green thumb is a person ____.
A. whose garden is greener than others’
B. whose thumbs are of green color
C. who is good at growing plants
D. who is younger than his neighbors
3.The author is actually talking about ____.
A. language B. colors
C. politics D. agriculture
4.Which of the following statements is NOT true according to the passage?
A. In about the 16th century, a greenhorn meant an experienced soldier.
B. The Green Revolution may have some connection with green thumbs.
C. The green-eyed monster was probably created by William Shakespeare.
D. The green-eyed monster can be used to describe a person who is jealous.
高二英语阅读理解中等难度题查看答案及解析
Green is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants.
Sometimes, the word green means young, fresh and growing. Sometimes, it describes something that is not yet ripe(成熟) or finished. For example, a greenhorn is someone who has no experience, who is new to a situation. In the fifteenth century, a greenhorn was a young cow or ox whose horns(角) had not yet developed. A century or so later, a greenhorn was a soldier who had not yet had any experience in battle. By the eighteenth century, a greenhorn had the meaning it has today—a person who is new in a job.
Someone who has the ability to grow plants well is said to have a green thumb. The expression comes from the early nineteen hundreds. A person with a green thumb seems to have a magic touch that makes plants grow quickly and well. You might say that the woman next door has a green thumb if her garden continues to grow long after your plants have died.
The Green Revolution is the name given some years ago to the development of new kinds of rice and other grains. The new plants produced much larger crops. The Green Revolution was the result of hard work by agricultural scientists who had green thumbs.
Green is also the color used to describe the powerful feeling, jealousy(嫉妒). The green-eyed monster is not a frightening creature from outer space. It is an expression used about four hundred years ago by British writer William Shakespeare in his play “Othello”. It describes the unpleasant feeling a person has when someone has something he wants. A young man may suffer from the green-eyed monster if his girlfriend begins going out with someone else. Or, that green-eyed monster may affect your friend if you get a pay rise and she does not.
1.Greenhorn now refers to ____.
A.a person who is new in a job B.a new solider C.a young horse D.a thumb
2.A person who has a green thumb is a person ____.
A.whose garden is greener than others’
B.whose thumbs are in green color
C.who is good at growing plants
D.who is younger than his neighbors
3.The author is actually talking about ____.
A.colors B.language C.politics D.agriculture
4.Which of the following statements is NOT true according to the passage?
A.The green-eyed monster can be used to describe a person who is jealous
B.The Green Revolution may have some connection with green thumbs
C.The green-eyed monster was probably created by William Shakespeare
D.In about the 16th century, a greenhorn meant an experienced soldier
高二英语阅读理解中等难度题查看答案及解析
One of the most important aspects of an image is color. People are very sensitive to color, and different colors have different effects on people .
In general , red is an exciting color , which creates an image of action, energy and danger. Red is also the most frequently used color in flags .Eighty percent of the world’s flags contain red. A study in “Germany showed that football teams wearing red are more successful .Blue is a very calm color .Business executives usually wear dark blue suits .Blue is also a peaceful color. The flag of the United Nations is light blue .Yellow is associated with openness and freedom. Green is a very relaxing color .Surgeons nowadays wear green ,because it’s less tiring than white .Black creates an image of power and authority .It can also be a very threatening color .Gangsters and vampires often wear black .white is a pure and strong color .This is one reason why doctors wear white coats .We trust them more .Grey is a very anonymous color .People wearing grey don’t want other people to notice them .Brown is the opposite of black .It’s warm and friendly ,while black is threatening .
1.What does the author mainly talk about in the passage?
A.Color and Character B.Color and Image
C.Color and Occupation D.People are sensitive to color
2.Which of the following is true about color according to the passage?
A.Eighty per cent of the world’s flags contain green.
B.Brown is the opposite of pink, presenting warmth.
C.Red creates an image of energy , danger and freedom.
D.Blue is a peaceful and calm color.
3.The underlined word “anonymous” roughly means ______
A.outstanding B.beautiful C.exciting D.unknown
高二英语阅读理解中等难度题查看答案及解析
The rosebushes were finally in full bloom on that spring morning.
The sight of roses always brings to________Wanda' s childhood memories. Then the family had no _____to buy extra things , so even a tired rose was something to ________ .
Currently, to have a backyard full of different roses is pure ________. And her husband, Dale, devotedly ________the roses. ________that she loves the very first blooms, he picked some on this particular morning.
But as Dale returned, he came across a neighbor who had________ for a quick visit. As the woman turned to go, Dale generously gave the ________ to her. And even though their visitor ______ she didn' t want to take them, she was_______ assured(确信)that the flowers were hers to keep.
Seeing her precious first blooms go out the door________Wanda with regret, and a bit of ________. She knew it was " better to give than to receive. " ________, she wished she could have kept the roses for herself.
Later that day, the couple headed to the post office, where Wanda waited outside in the car.
Then, without_______, an older woman suddenly appeared at the open window, and gave her a bunch of fresh roses ! " These are for you. They ' re my first blooms this spring. "
Completely ________,Wanda thanked the woman and_______ for a moment to breathe in the rich fragrance. When she looked back, the mysterious visitor was gone.
That special______changed Wanda. It made her understand the true meaning of_________gifts. Now, she always_______her first blooms to others , as a(n)________that someone is thinking of them.
1.A. mind B. thought C. mood D. head
2.A. energy B. desire C. courage D. money
3.A. value B. raise C. desert D. water
4.A. business B. enjoyment C. imagination D. memory
5.A. lays B. tends C. studies D. serves
6.A. Anxious B. Aware C. Afraid D. Ashamed
7.A. turned out B. settled down C. stopped by D. broken into
8.A. roses B. wishes C. greetings D. bushes
9.A. recommended B. insisted C. cried D. complained
10.A. hardly B. temporarily C. secretly D. repeatedly
11.A. covered B. supplied C. charged D. filled
12.A. tension B. selfishness C. gladness D. pride
13.A. Instead B. Thus C. Still D. Otherwise
14.A. delay B. thinking C. effort D. warning
15.A. amazed B. confused C. shocked D. relaxed
16.A. waited B. bent C. shook D. nodded
17.A. apology B. discovery C. delivery D. smell
18.A. influencing B. receiving C. giving D. buying
19.A. gives away B. puts away C. takes away D. throws away
20.A. reminder B. duty C. routine D. example
高二英语完形填空中等难度题查看答案及解析
The rainy season is coming and let’s make full use of the _______ days
to dry whatever is needed to dry.
A.few last sunny | B.last few sunny |
C.last sunny few | D.sunny last few |
高二英语单项填空中等难度题查看答案及解析
As ever, the Summer Movie Season is full of series and special effects. But if you’re prepared to look for them, you’ll find some smaller, odder films flying beneath the radar.
Book Club (May 18): A great quartet(四人组)of actresses (Diane Keaton, Jane Fonda, Candice Bergen, Mary Steenburgen) headline this comedy about a book club that gets back into a romantic mood after reading Fifty Shades Of Grey. It sounds ridiculous, but if that is a hook for a romantic comedy, it will be trying something new.
Tag (June 15): This comedy looks like it might share some DNA with The Hangover, as a group of friends reunite over the years to play a never-ending game of tag—Jeremy Renner, Jon Hamm, Hannibal Buress, Jake Johnson, Ed Helms, Leslie Bibb, Rashida Jones and Isla Fisher star. In other words: a lot of people we already know are funny, plus Jeremy Renner!
Uncle Drew (June 29): The attraction is that a young guy (Lil Rel Howery) has to renew a team of old men—played by NBA legends in old-age makeup—to play alongside his Uncle Drew (Kyrie Irving) in a big neighborhood game. This is such a strange idea for a comedy that I cannot wait to see it. Stars include Shaquille O’ Neal, Nate Robinson, Chris Webber, Lisa Leslie, Reggie Miller, J.B. Smoove and an up-and-coming comedy actress, Tifany Haddish.
Skyscraper (July 13): It wouldn’t be an action-movie season without Dwayne “The Rock” Johnson running off a crane(起重机)and leaping in a way that in reality would result in certain death but that in a movie results in a safe landing! I’m not here to tell you it’s more than it appears. I’m here to tell you it’s probably exactly as it appears. It comes out on July 13, so perhaps on the hottest day of the summer, forget your troubles and see The Rock save his family.
1.Which film can you enjoy this May?
A. Book Club. B. Tag. C. Uncle Drew. D. Skyscraper.
2.What is strange about Uncle Drew?
A. A lot of people in old-age makeup are very funny.
B. A young man has to employ some NBA legends to play in a game.
C. Some current NBA superstars will star in the film.
D. The author cannot wait to see the film.
3.Which film is not a comedy?
A. Book Club. B. Tag. C. Uncle Drew. D. Skyscraper.
高二英语短文困难题查看答案及解析
Most kinds of rose plants come from Asia. But roses are also native to other areas including northwest Africa, Europe and the United States. In 1986, Congress chose the rose as America’s national flower. Technically, Congress and President Ronald Reagan declared it the “national floral emblem.” Whatever the name, the decision did not smell sweet to supporters of others popular flowers.
Some people say roses are difficult to grow. But you have a good chance of success if you start with a few suggestions from experts. You should plant your roses where they can get sunshine for about six hours on bright days. You can buy roses form a garden center or by mail order. You can buy potted roses, also known as container roses, or bare-root plants. Each kind has its fans.
Some gardeners say potted roses are easier to plant. They say the roots develop better. But Jeffrey Dinslage, an expert, pint out that bare-root roses come without soil. So they weigh less to transport.
Another expert advises getting bare-foot roses as close to planting time as you can. If they arrive before you are ready to plant them, make sure the packing material is moist. Keep the plants in a cool, dark place. The resting plants have no leaves but still need water. When growing roses, the soil should feel moist deep down. Watering should be done in the morning.
But do not water too much. People often ask Jeffrey Dinslage about unhealthy discoloration on rose leaves. He says the spots are usually caused by too much water. After heavy rains or too much watering, he advises pulling away mulch, the substance used to protect the roots, temporarily from around the roots. This will help dry the soil.
1.From the first paragraph, we know that in the United States _______.
A. all the people like roses B. there are a lot of national flowers
C. some roses don’t smell sweet D. there are some other popular flowers
2.Why does Jeffrey Dinslage suggest planting bare-root roses?
A. They are easier to plant. B. Their roots develop better.
C. They are cheap to transport D. Their leaves need no water
3.Which of following is closest in meaning to the underlined word “moist”?
A. Slightly wet. B. Pretty dry. C. Too hard. D. Lightly soft.
4.According to Jeffrey Dinslage, people should ______ to avoid the spots on the rose leaves.
A. not water roses in the morning B. protect the roots of roses
C. improve the quality of the soil D. not water roses very much
高二英语阅读理解中等难度题查看答案及解析
Living alone in nature is the kind of decision that looks great on paper. You could move away from the pressures of city life, to somewhere with a lower cost of living and more privacy. You could enjoy scenic views all year round, and adopt a simpler way of life. It’s not hard to see the appeal of this at all. But what happens when that all goes wrong?
Paul Kingsnorth is a distinguished writer—his novel The Wake was longlisted for the Booker Prize and won the Gordon Burn Prize. His books help develop an awareness of place and history, so it’s not hugely surprising that his latest book, Savage Gods, is about his own rural existence. Savage Gods is in part about Kingsnorth, his wife, and their children moving to western Ireland. He writes, “In my country a small house and a field is beyond the means of anyone who doesn’t earn much money or who refuses to get into debt to chase a dream.” It’s a feeling that anyone who’s looked longingly at rural tiny houses miles from anyone else can relate to.
But Kingsnorth is aware that this is only part of the story. “Because I am not a real farmer, I have to make my money in other places,” he writes, “I need the Internet or the Dublin-to-Holyhead ferry and sometimes both to put food on my family’s table.” To make matters worse, Kingsnorth’s isolation(隔离) results in a crisis of confidence in his own writing abilities—which becomes one of the central themes of Savage Gods.
Kingsnorth isn’t the only writer to make time spent in a vivid countryside landscape sound less enjoyable than one might expect. The French writer Sylvain Tesson takes this to what may be its most extreme point in his book. He lived alone for six months. His book includes impressive descriptions of the landscape and what it’s like to experience depression in the middle of such a landscape.
Some books neatly remind you of the appeal of such an existence, while others make the drawbacks central to their accounts. In Names for the Sea, Moss summarizes the attraction of wilder places. “We’d come for the landscape, for the pale nights and dark shores, rain sweeping over trees and bushes,” she writes. From that, it’s not hard to see why a life in nature—even with its potential downsides—still appeals to so many.
1.According to Paragraph 1, living in isolation makes people_____.
A.look great B.reveal their privacy
C.overcome pressures D.enjoy a lower living cost
2.What does the underlined word “this” in Paragraph 3 refer to?
A.Paul Kingsnorth helps readers develop an awareness of time and space.
B.Paul Kingsnorth starts to have doubts about his ability as a writer.
C.Paul Kingsnorth’s family live comfortably in a rural house.
D.Paul Kingsnorth couldn’t afford a tiny rural house.
3.What do you know about Paul Kingsnorth?
A.He thinks it a perfect idea to live alone in nature.
B.He earns money somewhere else to make ends meet.
C.His latest book is about the attraction of wilder places.
D.Living in the countryside landscape results in his depression.
4.Why does the author mention Sylvain Tesson and his book?
A.To inform readers of a famous French writer.
B.To praise him for his marvelous writing skills.
C.To explain how to live in the peaceful countryside.
D.To emphasize more writers experience similar problems.
高二英语阅读理解中等难度题查看答案及解析
From Rome and Venice to the rolling hills of Tuscany and the charm of Milan, Italy is a bottomless well of attractions. It is a motherland of artists and scientists that changed the shape of the world. Here are some places you should see on your vacations to Italy.
Valley of the Temples
Welcome to Sicily and one of its most amazing attractions. The Valley of the Temples in Agrigento is an extensive archaeological site containing the well-preserved remains of various Doric temples dating from the 5th century B.C. In accord with standard criteria (标准) for both Greek and Roman temples, all structures face east so that the statue of the god housed inside will be illuminated (照亮) by the rising sun. The site being located on a ridge overlooking the town, the term “valley” is obviously a misnomer (误称),but it quite captures the vastness of the place.
Uffizi Gallery
The reputation for being one of the finest universally acclaimed (受到高度赞扬的) museums of all time comes courtesy of masters like Leonardo da Vinci, Raphael, Michelangelo and Rubens. Their timeless works are proudly displayed on the top floor of the palace in Florence.
Historic Centre of Siena
Siena may not equal Florence in overall artistic achievement, but its charm makes it a place that no other can compare to. Centered on Piazza del Campo, the historic district is a container of 12th –century Gothic, and a mirror of the Middle Ages. Full of pearls of architecture and cultural highlights, the historic centre of Siena is an excellent trip back in time, ideally to be taken in summer.
Grand Canal
Taking the water bus along the Canal Grande is like going back through centuries of history. The famous Venetian waterway runs more than 3.5 km through all six districts of the historic center. The impressive Renaissance palaces rub shoulders with Gothic arches and marble mixes with gold. Numerous landmarks never cease to provoke (激起) admirable sighs on the way.
1.Which of the following would be better to visit in summer?
A. Uffizi Gallery. B. Valley of the Temples.
C. Grand Canal. D. Historic Centre of Siena
2.The main purpose of the passage is ______.
A. to tell visitors about the advantages of travelling in Italy
B. to supply visitors with information about some famous museums
C. to show visitors the features of Italy
D. to suggest some good places to go in Italy to visitors
3.Which are the unique features of the Grand Canal?
① There are many Gothic arches.
② You can see many Renaissance palaces there.
③ The length of the Venetian waterway is three kilometers.
④ You can take the water bus to enjoy its beauty.
A. ①②③ B. ①②④ C. ②③④D. ①③④
4.Where can one probably find this passage?
A. In a sports newspaper. B. In a geography report.
C. In a traveling magazine. D. In a novel.
高二英语阅读理解中等难度题查看答案及解析