Your chair is your enemy. That is the conclusion of several recent studies. Among people who sit in front of the television for more than three hours each day, those who exercise are as fat as those who don’t.
So what’s wrong with sitting? The answer seems to have two parts. The first is that sitting is one of the most passive things you can do. Compared to sitting, standing in one place is hard work. To stand, you have to tense your leg muscles, and engage the muscles of your back and shoulders; while standing, you often shift from leg to leg. All of this burns energy.
You may think you have no choice about how much you sit. But this isn’t true. Suppose you sleep for eight hours each day, and exercise for one. That still leaves 15 hours of activities. Even if you exercise, most of the energy you burn will be burnt during these 15 hours, so weight gain is often the cumulative(累积的) effect of a series of small decisions: Do you take the stairs or the elevator? Do you walk to the corner store, or drive?
But it looks as though there’s a more sinister aspect to sitting. Some evidence suggests that when you spend long periods sitting, your body actually does things that are bad for you.
Lipoprotein lipase(蛋白脂酶) is a molecule that plays a central role in how the body processes fats. Low levels of lipoprotein lipase are associated with a variety of health problems. Studies in rats show that leg muscles only produce this molecule when they are actively being moved. The result is that when you sit, an important part of your metabolism(新陈代谢) slows down. You may also have a higher risk of suffering from diabetes(糖尿病).
Some people have advanced radical solutions to the sitting syndrome(综合症): replace your sit-down desk with a stand-up desk, or watch television in a rocking chair. But whatever you choose, know this. The data is clear; look out for your chair.
1.What would be the best title of this passage?
A.Become an Athlete to Be Healthy.
B.Choose a Better Chair for You.
C.How to Speed Up Your Metabolism.
D.Stand Up While You Read This.
2.Paragraphs 2 and 3 tell us that.
A.taking too much exercise harms people’s health
B.sitting a lot reduces the benefits of taking exercise
C.people needn’t depend on exercise to keep healthy
D.healthy people are those who sit less and stand more
3.Which of the following is the best advice on how to control our weight?
A.Exercising at least an hour a day.
B.Standing as long as possible.
C.Using our energy actively in daily life.
D.watching TV in a rocking chair.
4.The author mentions lipoprotein lipase mainly to.
A.show that it plays a big part in keeping us healthy
B.tell us that it isn’t produced while we are sitting
C.suggest that we should take less exercise to be healthy
D.prove sitting for long is bad for our body
高三英语阅读理解简单题
Your chair is your enemy. That is the conclusion of several recent studies. Among people who sit in front of the television for more than three hours each day, those who exercise are as fat as those who don’t.
So what’s wrong with sitting? The answer seems to have two parts. The first is that sitting is one of the most passive things you can do. Compared to sitting, standing in one place is hard work. To stand, you have to tense your leg muscles, and engage the muscles of your back and shoulders; while standing, you often shift from leg to leg. All of this burns energy.
You may think you have no choice about how much you sit. But this isn’t true. Suppose you sleep for eight hours each day, and exercise for one. That still leaves 15 hours of activities. Even if you exercise, most of the energy you burn will be burnt during these 15 hours, so weight gain is often the cumulative(累积的) effect of a series of small decisions: Do you take the stairs or the elevator? Do you walk to the corner store, or drive?
But it looks as though there’s a more sinister aspect to sitting. Some evidence suggests that when you spend long periods sitting, your body actually does things that are bad for you.
Lipoprotein lipase(蛋白脂酶) is a molecule that plays a central role in how the body processes fats. Low levels of lipoprotein lipase are associated with a variety of health problems. Studies in rats show that leg muscles only produce this molecule when they are actively being moved. The result is that when you sit, an important part of your metabolism(新陈代谢) slows down. You may also have a higher risk of suffering from diabetes(糖尿病).
Some people have advanced radical solutions to the sitting syndrome(综合症): replace your sit-down desk with a stand-up desk, or watch television in a rocking chair. But whatever you choose, know this. The data is clear; look out for your chair.
1.What would be the best title of this passage?
A.Become an Athlete to Be Healthy.
B.Choose a Better Chair for You.
C.How to Speed Up Your Metabolism.
D.Stand Up While You Read This.
2.Paragraphs 2 and 3 tell us that.
A.taking too much exercise harms people’s health
B.sitting a lot reduces the benefits of taking exercise
C.people needn’t depend on exercise to keep healthy
D.healthy people are those who sit less and stand more
3.Which of the following is the best advice on how to control our weight?
A.Exercising at least an hour a day.
B.Standing as long as possible.
C.Using our energy actively in daily life.
D.watching TV in a rocking chair.
4.The author mentions lipoprotein lipase mainly to.
A.show that it plays a big part in keeping us healthy
B.tell us that it isn’t produced while we are sitting
C.suggest that we should take less exercise to be healthy
D.prove sitting for long is bad for our body
高三英语阅读理解简单题查看答案及解析
After several years of observation, the research group ______ the conclusion that language acquisition is faster when students ______ to the situation where it is spoken.
A.has come to; expose | B.have arrived at; are exposed |
C.has concluded; are exposed | D.have reached; expose |
高三英语单项填空中等难度题查看答案及解析
Base your research on ____ evidence, or its conclusions will be doubtful.
A.fierce B.severe C.solid D.potential
高三英语单项填空中等难度题查看答案及解析
—It is said that the number of Chinese characters you can type on your mobile phone is the total number of Chinese characters.
—I know. That is because the character input systems are made by foreign cell phone producers.
A.much than 25 percent | B.25 percent as less as |
C.25 percent less than | D.25 percent as much |
高三英语单项填空简单题查看答案及解析
One of the things that makes your smart-phone so smart is that if you pull it out in the sun, it senses that—and dials up the screen brightness to compensate. But it’s not a perfect solution.
“First of all, it’s still not bright enough—you have to remember how respectable sunlight is.” Shin-Tson Wu, a physicist at the University of Central Florida. The other problem, he says of the brightened screen, is it kills the battery. So Wu and colleagues have produced a battery-sparing alternative: an anti-reflective screen-coating. Based on the eyes of moths. “Nature is so rich! We can learn a lot from nature. “The thing Wu and others have learned about moth eyes, is that they’re uneven, dotted with tiny projections. That uneven surface reduces the reflection of light off their eyes- thought to help the bugs escape predators (捕食者), and see better in low light. So Wu and his team built a similar surface with tiny dimples (凹), to cut down on glare. He says the dimpled coating could improve the readability of a screen by five to 10 times, compared to a normal smart-phone screen. The details are in the journal Optica.
The tech hasn’t been commercialized yet, and that could take a few years. Which gives researchers time to take advantage of another property of these surfaces: they’re flexible. Meaning the possibility of bendable displays. Combine that with the bendy batteries we reported on in a recent podcast(播客), and it looks the smart-phones of the future could be set for a real transformation.
1.Why do the researchers develop the anti-reflective screen-coating?
A.To brighten the screen. B.To make profits.
C.To take in the sunlight. D.To save the use of battery.
2.What inspired the invention of the screen?
A.The predators. B.The reflection of light.
C.The eyes of moths. D.The smooth surface.
3.How does the screen work?
A.It helps bugs escape.
B.It slows down reading.
C.The smooth surface protects our eyes.
D.The rough surface decreases the reflection of light.
4.What do the researchers expect of the screen?
A.I’ll transform itself. B.I’ll be environment-friendly.
C.I’ll reach consumers soon. D.I’ll be powered by recyclable batteries.
高三英语阅读理解中等难度题查看答案及解析
___ in the regulations is that you ___ other people the password of your e-mail account.
A.What is required; not tell B As is required; shouldn't tell
C.It is required; not tell D.It requires; shouldn't tell
高三英语单项填空中等难度题查看答案及解析
A trip to the library can change your life.That is the idea of the Get It Loud in Libraries project,which challenges the habit of speaking in a low voice.The sweet tones of singer Diana Vickers rang out recently,surrounded by books as well as fans,at Lancaster Library.Plan B,Adele,Florence and the Machine,Speech Debelle,and the Thrills have also performed for the project.
This fiveyear project aims to increase access(进入) to libraries while developing youth talent and has attracted more than 8,500 visitors,5,000 of whom are firsttime library users.
“I think it’s wonderful,”Vickers says.“I’ve been playing in front of big crowds and I’m excited about close environments where you can be close to your fans.”
As a child growing up in nearby Blackburn,she says that her school library was a “second home”to her.When she was young she loved PeterRabbit and Mr.Men books,and later her favorites included LittleWomen and TheLovelyBones.
Attracted by the stage,the young who would once never have been to a library have been returning to borrow books and CDs.The project’s founder,Stewart Parsons,has worked in libraries for 25 years.He feels that the concerts have made libraries something that the young want to be part of.A mother,Lauren Zawadzki,sent him a text message after a concert:“Your work is great!!!Both Izaak and Dom have been reading in the library for the last half hour...You should be proud.They would never have suggested that before the concerts.”
Parsons hopes that the activity is changing the way people view libraries.“My big worry is that libraries trail(拖拉)behind slightly;they shouldn’t.This is about bringing libraries up to date.The beautiful thing is that people are reconnecting with the library in a way they haven’t done before.”
1.The Get It Loud in Libraries project aims to ________.
A.collect money for libraries to buy books |
B.attract more people to read in libraries |
C.provide a performing place for music lovers |
D.develop youth talent for singing |
2.According to the passage,Vickers’s attitude towards Libraries project is that of ________.
A.praise | B.unconcern |
C.doubt | D.worry |
3.What can we know about Diana Vickers from the passage?
A.She once worked at a library. |
B.She doesn’t like being close to her fans. |
C.She liked reading in her childhood. |
D.She complains about the noisy environment. |
4.According to the passage,Zawadzki ________.
A.advised libraries to keep quiet |
B.praised Parsons for helping her reading |
C.found her children’s talent for singing |
D.praised the Get It Loud in Libraries project |
高三英语阅读理解困难题查看答案及解析
The IOC Evaluation Commission has come to a ________ conclusion that Beijing is capable of hosting a successful 2022 winter Olympics.
A. tentative B. virtual
C. definite D. subtle
高三英语单项填空中等难度题查看答案及解析
阅读理解.
The Internet is full of headlines that grab your attention with buzzwords (流行术语). But often when we click through, we find the content hardly delivers and it wastes our time. We close the page, feeling we've been cheated. These types of headlines are called “click bait”.
A headline on Business Insider reads:“This phrase will make you seem more polite”. First, when you click through, you find another headline:“Four words to seem more polite”. Then, on reading the article, you find it's actually an essay about sympathy. And what are the four words? They're “Wow, that sounds hard”. On some video websites, you might encounter headlines such as “Here's what happens when six puppies visited a campus”. It turns out that it's just some uneventful dog footage (连续镜头).
Nowadays, with the popularity of social media, many news outlets tweet (推送) click bait links to their stories. These tweets take advantage of the curiosity gap or attempt to draw the reader into a story using a question in the headline. These click bait headlines are so annoying that someone is attempting to save people's time by exposing news outlet click bait through social media. The Twitter account @ SavedYouAClick, run by Jake Beckman, is one such example.
Beckman's method is to grab tweets linking to a story and retweet them with a clicksaving comment. For example, CNET tweeted “So iOS 8 appears to be jailbreakable but ...”, with a link to its coverage of Apple's product announcements. Beckman retweeted it with this comment attached: “...it hasn't been jailbroken yet.”
Since founding the account, Beckman's Twitter experiment has brought him more than 131,000 followers. Beckman said,“@ SavedYouAClick is just my way of trying to help the Internet be less terrible.” Asked about his goal, he said,“I'd love to see publishers think about the experience of their readers first. I think there's an enormous opportunity for publishers to provide readers with informative updates that include links so you can click through and read more.”
1.The article on Business Insider turns out to be________.
A.useful suggestions on politeness
B.an essay about another topic
C.an article hard to understand
D.a link to a video website
2.Why are readers often cheated by tricky headlines?
A.Social media has become more popular.
B.Readers have questions to be solved.
C.Such headlines are fairly attractive.
D.There're always stories behind them.
3.Beckman attached his comment to CNET's tweet to ______.
A.criticize CNET
B.save readers' time
C.advertise Apple's new product
D.tell readers something about iOS 8
4.In the last paragraph, Beckman appeals that ________.
A.publishers should be more responsible for the link
B.readers think about their needs before reading
C.publishers provide more information for readers
D.people work together to make the Internet less terrible
高三英语阅读理解中等难度题查看答案及解析
______ some users of the smart watches for two years, they draw a conclusion that it is necessary to renew the software.
A.Following B.To follow C.Followed D.Having followed
高三英语单项填空中等难度题查看答案及解析