If you are sitting, please stand up. Move your legs. Touch your toes if you can. Do anything but sit. New research shows that if you cut down on the time you spend sitting, you might live longer. Sitting less than three hours a day might extend your life by two years. Cutting television time to less than two hours a day can add one point four years to life.

The human body is designed to move. The fact is just the opposite. Modern lifestyles and office jobs rarely give us the chance to move around. We sit while we’re eating; we sit in the car; we sit while we are watching TV. And most of us sit for many hours at work. Sitting is something we do all the time. On average, Americans sit for four and a half to five hours a day. But that does not make sitting good for us.

Though you may exercise often, that does not mean you can sit for the rest of your waking hours. We can’t throw away physical activity. It is extremely important. Even if you exercise for 30 minutes a day, what goes on in the other 23 and a half hours a day is also very important.

Changes are coming to some offices, especially in the design of desks. A “standing desk” lets people stand while they work. Another new design is called the “treadmill desk”. It is an exercise machine that lets you walk slowly in one place. Even some U.S. schools begin to experiment with desks that are part bicycle to keep children moving.

Many companies may not buy a standing desk for everybody. However, they may get five standing desks or a treadmill desk for their employees and put them in a certain place where people can go for an hour a day to answer their emails or talk on the phone. Experts suggest some other activities: take a walk at lunchtime; walk to the offices and talk directly instead of emailing colleagues. All these activities may help you live longer.

1.Why should people stand up according to the new research?

A. They should touch their toes.

B. Standing more can cure some diseases.

C. Sitting less does people good and may help people live longer.

D. They spend too much time watching TV.

2.What can we learn about sitting?

A. Sitting is the best position for the body.

B. People usually have to sit for a long time nowadays.

C. The more people sit, the better they will be.

D. Americans sit longer every day than people in other countries.

3.What does the underlined word “It” in Paragraph 3 refer to?

A. The walking hour B. Sitting

C. Standing. D. Exercising

4.Which of the following is TRUE according to the passage?

A. The new design of desks can help people sit less.

B. The “treadmill desk” is used by people to run.

C. It’s better for school students to use standing desks.

D. It’s necessary for companies to offer a sitting desk to every employees.

練習冊系列答案
相關(guān)習題

科目：高中英語 來源：2015-2016學年河北承德第八中學高一下期中英語試卷（解析版） 題型：閱讀理解

Clara Barton, born on Christmas in 1821, is widely known as one of the most honored women in American history. She began teaching school when most teachers were men at that time. Later, she became one of the first women ever to be employed by the government.

Her career in helping the sick began when her brother David became her first patient. He fell down from the roof of a house when Clara was just 11 years old. She stayed by his side and looked after him for three years, learning how to give him all his medicines.

When the Civil War began in 1861, she immediately recognized that the poorly equipped soldiers needed help. Instead of waiting for others to step in, Clara collected necessary things on her own, asked the public for donations and learned how to store and distribute them to soldiers. She also read to the soldiers and wrote letters for them.

After the Battle of Cedar Mountain in northern Virginia in 1862, Clara arrived at a field hospital at midnight with a vehicle full of supplies. A doctor named Paul Smith at that hospital would later write, “I thought heaven had sent out an angel that night — her assistance arrived at exactly the right time.”

In 1869, Clara went to Europe and learned about the International Committee of the Red Cross. Upon her return to the United States, she successfully founded the American Red Cross. She led the organization for the next 23 years. Her last field mission (使命) as president of the American Red Cross was to help the victims of the 1900 Galveston hurricane. She did not retire (退休) from the American Red Cross until she was 83. True to her nature, Clara always went to where the need was the greatest.

Today, the American Red Cross continues the mission Clara started more than 100 years ago. With the help of thousands of volunteers, the American Red Cross provides relief to victims of disasters, as well as helps people prevent, prepare for and respond to all sorts of emergencies.

1.We can learn from Paragraph 2 that Clara Barton was _____.

A. honest B. caring C. talented D. modest

2.After the Civil War broke out, Clara Barton _____.

A. joined the army and fought bravely

B. went to Europe for further study

C. continued to work as a teacher

D. did a lot to help soldiers

3.Seeing Clara Barton’s arrival, Dr. Smith must have felt _____.

A. excited and grateful

B. proud and joyful

C. shy and nervous

D. sad and sorry

4.What is mainly described in Paragraph 5?

A. The aim of the American Red Cross.

B. The importance of voluntary donations.

C. Clara Barton and the American Red Cross.

D Clara Barton’s contribution to the Civil War.

查看答案和解析>>

科目：高中英語 來源：2015-2016學年浙江紹興一中高二下期中考試英語試卷（解析版） 題型：書面表達

閱讀下面短文, 根據(jù)其內(nèi)容寫一篇60詞左右的內(nèi)容概要。

With global warming and melting ice, it isn’t easy being a polar bear anymore. Some studies have predicted that polar bears could die out by the end of the century. The good news is not all researchers think the bears are absolutely disappearing. Scientists at the American Museum of Natural History(AMNH) have published a new paper indicating that things might not be as bad for polar bears as some scientists expect.

To understand the reason for the researchers’ cautious optimism, we must first understand the factors that are threatening the polar bear’s existence. Polar bears consume a diet of mainly young seals. In order to hunt these seals, polar bears need to rest at the top of sea ice---the same ice that is increasingly melting for most of the year thanks to climate change. In another 50 years, experts expect that the Arctic will be too warm for sea ice to form for half of the year, leaving polar bears without a reliable food source and in serious danger of starvation.

As it turns out, alternative food sources for the polar bears aren’t completely out of the question. For as long as biologists have tailed after the animals, they’ve seen polar bears eating animals found on land like caribou(馴鹿) and snow geese---as well as the snow geese’s eggs.

Can polar bears actually survive off these alternative food sources for long periods of time? To figure this out, researchers calculated the nutrients that a caribou and snow geese diet would provide. They found that even adult male polar bears would be able to obtain more calories than would burn in hunting these meals. Moreover, the food would provide the food lecessary to avoid starvation during the summer months.

Unfortunately, not all polar bears have tended to seek food on land. That said, the researchers expect that necessity would push more polar bears to hunt on land to avoid starvation. They also expect that the bears could learn from their fellow bears how to hunt on land until the practice becomes second nature.

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

查看答案和解析>>

科目：高中英語 來源：2015-2016學年寧夏育才中學孔德校區(qū)高一下6月考英語卷（解析版） 題型：完形填空

完形填空

閱讀下面短文，從短文后各題所給的四個選項（A, B, C和D）中，選出可以填入空白處的最佳選項，并在答題卡上將該項涂黑。

I sat in the chair reflecting on the past year. At that time, my _________ Charley came into the room. Charley took one look at my face and she could _________ I was off in another world. Charley said, “You have that _________ on your face! Tell me what you were_________ ”. “Well, Charley,” I replied, “I was listening to a song on the radio that asked_________ you have done over the last year. When I _________ on the year, I’ve realized I have had such good fortune, with a few bumps (碰撞) along the way.”

Charley immediately asked, “Tell me about the three things that _________ you the most during this year.”

I sat thinking if I had to _________ only three things that influenced me, what would they be? After a few minutes, I said, “OK, here are the three things that influenced me the most: My family. Throughout the year I had many _________, but my family were always there _________ support and encouragement. My friends. Over the years I have _________ my dreams and my goals with my friends. Some goals I have _________ and other goals I have not. _________ friends like you always supported and _________me. My colleagues. I have worked with some_________ people over the last year. I have been very _________ to have the opportunity to work with these excellent people over the last year.”

Charley smiled and said, “Do you realize that everything you have said has one thing in _________ ?”

“What are you saying, Charley?” I asked.

She replied, “One common thing is _________ . Neither the material things in your life, nor your job has had the most meaning in your life. It is the people in your life that have made the biggest _________ in your life!”

I smiled. Material things are not _________ , and while our jobs provide the means of existence for us, the important things in life are the people who touched our lives.

1.A. sister B. classmate C. mother D. frie nd

2.A.argue B. suggest C. tell D. wonder

3.A. look B. appearance C. mark D. mask

4.A. doing B. thinking C. listening D. annoying

5.A. where B. that C. what D. why

6.A. call B. talk C. insist D. reflect

7.A. influenced B. demanded C. entertained D. motivated

8.A. write B. pick C. get D. own

9.A. plans B. experiences C. challenges D. achievements

10.A. receiving B. expecting C. winning D. offering

11.A. shared B. provided C. connected D. compared

12.A. set B. realized C. failed D. scored

13.A. But B. Meanwhile C. Otherwise D. Unless

14.A. accepted B. satisfied C. replaced D. encouraged

15.A. stupid B. brave C. amazing D. ordinary

16.A. fortunate B. miserable C. unhappy D. surprised

17.A. character B. store C. common D. nature

18.A. effort B. spirit C. motivation D. people

19.A. choice B. difference C. problem D. progress

20.A. useful B. important C. practical D. unnecessary

查看答案和解析>>

科目：高中英語 來源：2015-2016學年四川雙流中學高一下期中考試英語試卷（解析版） 題型：短文改錯

單句改錯

假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。

增加：在此處加一個漏字符號（∧），并在下面寫出增加的詞；

刪除：把多余的詞用斜線（﹨）劃掉；

修改：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。

注意：1. 每處錯誤及其修改均僅限一詞；

2. 只允許修改10處，多者（從11處起）不計分。

Christie was one of my best friend at high school. At that time, we often spend time together. Thank to her help, I made great progress in my study. Last year, she decided to study abroad. In another words, we would be separated for long time. Before her leaving off, I prepared a gift to show my best wishes to him. She said it was the best gift she has ever had. From then on, we’vekept touch with each other through e-mails. I look forward to see her again in the near future.

查看答案和解析>>

科目：高中英語 來源：2015-2016學年遼寧東北育才校高二下第二段考英語試卷（解析版） 題型：語法填空

閱讀下面材料，在空白處填入適當?shù)膬?nèi)容（1個單詞）或括號內(nèi)單詞的正確形式。

My family objected violently when my brother and I said___1.___ were going to spend the Christmas holidays abroad. But nothing could persuade us ___2.__ (stay). Two days__3.___ Christmas, we went to a small town in Southern Germany. We spent ___4.___ whole of Christmas Eve sightseeing.

There were so many activities in the town that they added to our__5.__ (excite). The streets were crowded with people __6.___ the shops were full of wonderful things. In the evening, we went to listen to Christmas songs sung by children around the___7.__ (bright) decorated Christmas tree in the main street. We returned to our hotel late that night, greatly__8.___ (look) forward to the next day when we planned to have a meal at the best restaurant in town. But in the morning the streets were empty.

To make matters worse, all the shops including the restaurants ___9.__ (shut). At last we had to return to our hotel, feeling very miserable. Our Christmas “feast” was a bag of fruits, which my brother had happened to buy the day before. Our thoughts sadly turned to home ___10.___ , at that moment, the entire family must have been wishing us a “Merry Christmas.”

查看答案和解析>>

科目：高中英語 來源：2015-2016學年江西南昌市高二下期中考試英語試卷（解析版） 題型：七選五

根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。

America’s holiday shopping season started on Black Friday, the day after Thanksgiving.

1. Shoppers make the most money this time of year, about 20 percent to 30 percent of all revenue all year. About 136 million people shopped during the Thanksgiving Holiday weekend.

2. In an era of instant information, shoppers can use their mobile phones to find deals. Nearly 80 percent of this year’s holiday shoppers, or about 183.8 million people, shopped on Cyber Monday. 3. Online spending on Black Friday rose 15 percent to hit $2.7 billion this year. Cyber Monday spending increased 12 percent to $3 billion. NBC News reported that for many, shopping online was a more comfortable alternative than crowded malls.

The shift to online shopping has had a big impact on solid shopping malls. Since 2010, more than 24 shopping malls have closed and an additional 60 are struggling. Fortune says the weakest of the malls have closed. However, the business in malls is thriving again, it adds. According to a survey, 94.2percent of malls were full with shops by the end of 2014. 4.

The average American consumer will spend about $805 on gifts. That’s about $630.5 billion between November and December – an increase of 3.7 percent from last year.

5. That goes to China’s Singles’ Day, celebrated on November 11, which posted record sales of $14.3 billion in 2015.

A．More and more people shop online nowadays.

B．That is the highest level in 27 years.

C．It is the busiest shopping day of the year.

D．One-in-five Americans used a tablet or smart-phone.

E．The traditional mall industry can hardly survive.

F．Cyber Monday falls on the Monday after Thanksgiving and Black Friday.

G．Nonetheless, Cyber Monday is not the biggest online shopping day in the world.

查看答案和解析>>

科目：高中英語 來源：2015-2016學年江蘇鹽城中學高一下期中考試英語試卷（解析版） 題型：單項填空

Would you drop in at my house this afternoon if _______?

A. you are convenient

B. it is convenient for you

C. it is convenient of you

D. you will be convenient

查看答案和解析>>

科目：高中英語 來源：2016屆高三復習跟蹤檢測英語試卷（29）（解析版） 題型：完形填空

For many people, being without any electronic devices (設(shè)備) creates an uneasy feeling. I recently experienced a weekend without __________. Allow me to share my ________.

Last month, my family and I drove to my aunt Nan's home. My aunt was preparing to move closer to us. The _________ of our visit was to help her pack her belongings. During the ride, my dad __________ us that Aunt Nan's style of living was _________. We wouldn't hear cell phones ring because signals for electronic devices are not _________ in the mountains. My dad also told us that Aunt Nan had a television, but it _________ few channels.My mother added that my aunt doesn't own a computer and that I would need to write my English paper on Aunt Nan's typewriter.

Once we finally _________ Aunt Nan's house, we packed household items. Very quickly, however, I realized that it was __________ to figure out what to do in my free moments. I was used to watching television or movies in my _________ time. I was becoming restless (焦慮的)．

I'm sure that adults you know _________ tell you stories about the games they played and how they had time to think quietly when they were our age.Our parents grew up in a time when electronic devices were not advanced, _________ instant communication with friends and family wasn't even possible.

Once the packing was __________， there seemed to be nothing else to do. All the quiet thinking time made me _________， so I began writing my English paper. The old typewriter was fun to use, but I had to be a lot more _________ about making typing mistakes since there was no delete key. The best part of _________ the typewriter was hearing the sound that the keys made.

I soon finished my paper. My __________ had time to hike, draw, and make unusual crafts — much like my parents did. The _________ of putting these ideas on paper made me think that our dependence on electronics has _________ our creativity. I challenge you to spend a day without _________ any electronic devices. Maybe you will discover the benefit of thinking quietly as well.

1.A.games B．televisions C．electronics D．sports

2.A.feeling B．belongings C．experience D．devices

3.A.value B．purpose C．plan D．result

4.A.blamed B．a(chǎn)dvised C．a(chǎn)nnounced D．informed

5.A.primitive B．modern C．new D．casual

6.A.stable B．visible C．direct D．confusing

7.A.saved B．received C．a(chǎn)ccepted D．refused

8.A.complained about B．a(chǎn)rrived at C．left for D．cleaned up

9.A.safe B．impossible C．difficult D．easy

10.A.waiting B．travelling C．spare D．busy

11.A.finally B．hardly C．seldom D．frequently

12.A.though B．if C．for D．so

13.A.finished B．included C．paid D．opened

14.A.curious B．uncomfortable C．a(chǎn)ngry D．uninterested

15.A.careful B．scared C．excited D．crazy

16.A.holding B．using C．fixing D．packing

17.A.characters B．friends C．relatives D．classmates

18.A.process B．story C．idea D．beginning

19.A.failed B．encouraged C．dulled D．developed

20.A.turning down B．turning up C．turning off D．turning on

查看答案和解析>>

同步練習冊答案