SWEET LOVE
Many scientists believe our love of sugar may actually be an addiction. 1.. Then the good feeling goes away, leaving us wanting more. All tasty foods do this, but sugar has a particularly strong effect. In this way, it is in fact an addictive drug, one that doctors recommend we all cut down on.
“It seems like every time I study an illness and trace a path to the first cause, I find my way back to sugar,” says scientist Richard Johnson. 2.. Why? “Sugar, we believe, is one of the reasons, if not the major reason,” says Johnson.
Our bodies are designed to survive on very little sugar. Early humans often had very little food, so our bodies learned to be very efficient in storing sugar as fat. In this way, we had energy stored for when there was no food. But today, most people have more than enough. 3..
So what is the solution? It’s obvious that we need to eat less sugar. 4.. From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it. Some manufacturers even use sugar to replace taste in foods that are advertised as low in fat. So while the foods appear to be healthier, large amounts of sugar are often added.
5.. Many schools are replacing sugary desserts with healthier options, like fruit. Other schools are trying to encourage exercise by building facilities like walking tracks so students and others in the community can exercise. The battle has not yet been lost.
A.It’s not surprising that a cupcake contains a lot of sugar
B.So the very thing that once saved us may now be killing us
C.The trouble is, in today’s world, that it’s extremely difficult to avoid
D.But some people are fighting back against sugar and trying to create a healthier environment
E.One-third of adults worldwide have high blood pressure, and up to 347 million have diabetes
F.If you have high blood pressure, your heart needs to work harder to pump blood around your body
G.When we eat or drink sugary foods, the sugar enters our blood and affects the parts of our brain that make us feel good
高一英语七选五中等难度题
Many scientists believe our love of sugar may actually be an addiction. When we eat or drink sugary foods, the sugar enters our blood and affects parts of our brain that make us feel good.
1.In this way, it is in fact an addictive drug, one that doctors recommend we all cut down on.
“It seems like every time I study an illness and trace a path to the first cause, I find my way back to sugar,” says scientist Richard Johnson. One-third of adults worldwide have high blood pressure, and up to 347 million have diabetes. Why? “ 2.“ says Johnson.
Our bodies are designed to survive on very little sugar. Early humans often had very little food, so our bodies learned to be very efficient in storing sugar as fat. In this way, we had energy stored for when there was no food. But today, most people have more than enough. 3.
So what is the solution? It’s obvious that we need to eat less sugar. 4.From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it. Some manufacturers even use sugar to replace taste in foods that are advertised as low in fat.
But there are those who are fighting back against sugar. 5.Other schools are growing their own food in gardens, or building facilities like walking tracks so students and others in the community can exercise. The battle has not yet been lost.
A.We take in more energy and fat.
B.Then the good feeling goes away, leaving us wanting more.
C.Our ancestors were used to poor food, clothing and shelter.
D.So the very thing that once saved us, may now be killing us.
E.Sugar, we believe, is one of the reasons, if not the major one.
F.The trouble is, in today's world, it's extremely difficult to avoid.
G.Many schools are replacing sugary desserts with healthier options like fruit.
高一英语七选五中等难度题查看答案及解析
Scientists believe that one of our most important means of knowing what is going on around us is the sense of sound. We are warned of danger by sounds. Sounds serve to please us in music. Sound has a waste product, too, in the form of noise. Noise has been called unwanted sound. Noise is growing and it may get much worse before it gets any better.
In order to know how noise affects people and animals, scientists have been studying for several years. They are surprised by what they have learned. Peace and quiet are becoming harder to find. Noise pollution is a threat that should be looked at carefully.
Sounds is measured in units called decibels (分贝). At a level of 140 decibels people feel pain in their ears.
Trucks , buses , motorcycles, airplanes, boats, factories---all these things make noise. They trouble not only our ears, but minds and bodies as well.
There is a saying that it is so noisy that you can’t hear yourself think. Doctors who study noise believe that we must sometimes hear ourselves think. If we don’t, we may have headaches, other aches and pains, or even worse mental problems.
Noise adds more tension (紧张) to a society that has already faced enough stress.
1.The sense of sound _________.
A. makes us feel excited
B. helps us hear more clearly
C. is something harmful to us
D. helps to know what is happening around us
2.When sound is turned into noise, ______________.
A. people grow worse and worse
B. it makes us forget all the past
C. people don’t know what to do with everyday life
D. it will be a kind of pollution to people
3.Why does the passage say peace and quiet are becoming harder to find?
A. Because the world is making more and more noise.
B. Because wars and battles happen here and there in the world.
C. Because all the sounds are becoming over 140 decibels.
D. Because some machines can make noise.
4.Doctors say we can hear ourselves think __________.
A. if we don’t like to hear noise
B. if we have no aches or pains in our bodies
C. if there isn’t too much noise
D. if we can’t be careful of noise
高一英语阅读理解中等难度题查看答案及解析
Many scientists have believed that there may be a ______ of life on the Mars.
A.signal B.sign C.mark D.sigh
高一英语单项填空中等难度题查看答案及解析
We live in a sweet world. An average American kid consumes(消耗) more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s. We all know that too much sugar isn’t good for us. Researchers at the University of Utah used mice to make a study to prove the toxic effects of eating more sugar. They found it could influence people’s health seriously.
During the 58-week-long study, mice were fed a diet containing 25% more sugar. This percentage is equal to a healthy human diet along with three cans of soda daily. The team found that these mice were twice as likely to die as mice without eating so much sugar. Though the mice did not show signs of obesity or high blood pressure, male mice produced 25% fewer offspring(后代) than the other mice.
The reason why mice were chosen for research by scientists is not far to seek. “Mice have the genetic(基因) structure similar to humans’. Most substances(物质) that are harmful to mice are also harmful to people; it’s likely that those important physical problems that cause the rising death rate among mice can also influence people,” says the study author James Ruff of the University of Utah. Findings from this study reveal negative effects that are not as detectable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can affect development and even shorten lives.
Different types of sugar have different effects on the human body. Some of the sugar we consume comes from foods we might expect—candy, soda, and cookies. But much of the sugar that we eat is hidden. Food companies add large amounts of sugar to items we may not classify as sweets. To help cut down extra sugar consumption, nutrition experts suggest looking at the ingredients on food packages. Cutting sugar out of the American diet altogether may be difficult, but making every effort to control our nation’s desire for sugar will avoid a sweeter future.
1.The underlined word “toxic” in Paragraph1 probably means “________”.
A. positive B. harmful C. doubtful D. reasonable
2.According to Paragraph 2, we can know ________.
A. mice eating more sugar will live longer
B. the study on mice lasted less than a year
C. the study showed the bad effects of more sugar on mice
D. mice eating more sugar will become fatter and fatter
3.Why did the scientists choose mice to do the study?
A. Because a substance may have the same effects on mice and humans.
B. Because mice have a longer lifespan (寿命) than other animals.
C. Because mice can take in the harmful substances easily and quickly.
D. Because mice are sensitive to the sweet taste.
4.It can be inferred from the last paragraph that ________.
A. sugar from candy, soda and cookies is helpful for us
B. we should never believe what food companies said
C. most types of sugar have similar effects on people
D. it’s necessary to control people’s wish for sugar
高一英语阅读理解中等难度题查看答案及解析
This cake is very sweet. You ______ a lot of sugar in it.
A. should put B. might put C. could have put D. must have put
高一英语单项填空中等难度题查看答案及解析
Love sugar-white sand beaches? Love skiing (滑雪)down the side of a mountain? Whatever you like, you will find the best winter travel destination (目的地)in the following list. Paradise Island, Bahamas
Best for: Families and water babies
It's one of the Atlantis resorts (旅游胜地)in the Caribbean. The Coral towers and Marina Village (an open-air shopping and dining market) are two reasons to visit this Caribbean popular travel destination. Don't forget about Aqua venture, the world's largest open-air water park. With the winter temperatures between 15°C and 24°C, it's a perfect place to escape the cold.
Salt Lake City, Utah
Best for: Winter sports lovers
Salt Lake City is known as “Ski City”. It's one of four best ski resorts in the USA. Salt Lake City welcomes winter sports lovers all around the world. In addition to wonderful skiing tracks, Utah Olympic Park offers an unforgettable experience.
Iceland
Best for: Extreme Adventurers
Iceland in the winter is very beautiful. The temperatures there aren't as low as you think. There's no better time than winter to view the Northern Lights. Short winter days mean you'll have an even greater chance to catch the magic. An increasing number of flights in and out of Reykjavik make it easier than ever to visit Iceland.
Orlando, Florida
Best for: Theme park lovers
Orlando is another destination for winter travel. The weather is fine in winter. With the largest Disney World in the world, Orlando must be a good place to travel.
1.What can visitors do on Paradise Island?
A.Ski down the mountain. B.Play in the water park.
C.Visit the Olympic Park. D.Take pictures in Disney World.
2.Where can visitors go to enjoy the Northern Lights?
A.Salt Lake City. B.Orlando.
C.Iceland. D.Paradise Island.
3.Orlando is the best destination for ____.
A.winter sports lovers B.water babies
C.theme park lovers D.extreme adventurers
高一英语阅读理解中等难度题查看答案及解析
It is widely believed that the role of scientists is to _____ and describe the world, not to try to control it.
A. amuse B. create
C. observe D. travel
高一英语单项填空简单题查看答案及解析
It is believed that a new kind of drug ______ by the scientists and they are hopeful that they will succeed in a few months.
A. has been developed B. is being developed
C. is developing D. has developed
高一英语单项填空简单题查看答案及解析
It is believed that a new kind of drug _____ by the scientists and they are hopeful that they will succeed in a few months．
A．has been developed B．is being developed
C．is developing D．has developed
高一英语单项填空中等难度题查看答案及解析
Though sometimes we may lose our ability to do something we love, passions don’t have to end. Suzelle Poole of Dallas, Texas is living proof of that. The 79-year-old has been dancing for more than seven decades.
Suzelle started ballet when she was just 7 years old, and her devotion only grew stronger as her talent increased in the following years. In fact, Suzelle was so talented that she went to perform all around the world! Like most professional ballerinas (芭蕾舞女），Suzelle expected a short-lived career. “When I was about 26,1 knew I only had a few years left,”she said. It’s simply the nature of the art form because the movements are so hard on people’s bodies. But Suzelle’s body didn’t wear out at 26 — or even 56! At one point, she broke her arm but she was dancing again by the following week.
Nowadays she focuses on teaching the next generation of ballerinas at the Royale Ballet Dance Academy, where she and her students regularly perform for senior residents in assisted living facilities.
Suzelle has become such an inspiration that CBS News reporter Steve Hartman and his 5-year-old daughter Meryl recently traveled to Dallas to interview her. Steve’s little girl couldn’t wait to meet and dance with the woman she wants to become.
During the interview, Suzelle shared a piece of wisdom: “Ballet helps everything,” she said. “If you’re not feeling very well, you go to a ballet class, and you feel better after.” Meryl nodded knowingly. She also added, “Ballet could always cheer me up whenever I feel depressed.”
It’s no wonder Suzelle has no plans to hang up her pointed shoes. Why would she give up something that brings her so much joy?
1.Why did Suzelle at her 26 think her career would end soon?
A.The nature of the body didn’t allow lasting performance.
B.The audience didn’t like her performance.
C.She injured her arm in a training course.
D.She had to look after her family.
2.Why did Steve Hartman take his daughter Meryl to meet Suzelle?
A.To help Meryl with her problems.
B.To make Meryl experience a reporter’s work.
C.To inspire Meryl to pursue her dancing dream.
D.To realise Meryl’s dream of dancing with famous people.
3.In Suzelle’s opinion, ballet dance ___________.
A.benefits people’s mental health
B.should be taught at primary school
C.is less attractive to the young
D.raises people’s interest in art
4.What does the underlined part in the last paragraph probably mean?
A.Suzelle will go to find other joy of life.
B.Suzelle will carry on her ballet career.
C.Suzelle will put away her ballet shoes.
D.Suzelle will devote herself to art teaching.
高一英语阅读理解中等难度题查看答案及解析