2017-2018学年高考英语北师大版一轮复习课时作业:语言朋友(19)
- 格式:doc
- 大小:90.02 KB
- 文档页数:9
课时作业(十九)[选修模块7Unit 19 Language][限时:30分钟]Ⅰ.单项填空1.The two sportsmen congratulated each other________ winning the match by shaking hands.A.with B.on C.in D.to2.The black characters really________ on that orange background.A.make out B.stand out C.work out D.turn out3.Can you________ me a job when I get there? You know, I have to work in order to pay for my schooling.A.provide B.guarantee C.arrange D.apply4.Walters was not properly informed________ the reasons for her arrest.A.of B.for C.on D.with5.As a teacher you have to________ your methods to suit the needs of slower children.A.arrange B.adjust C.admit D.avoid6.The children grew up in beautiful________ but not in a happy home________ .A.environment; surroundingsB.surroundings; environmentC.surrounding; environmentD.environment; surrounding7.The________of the research is to try and find out more about the causes of the disease.A.suggestion B.effort C.form D.purpose8.He wrote down the text his teacher taught him________from memory.A.hardly B.accuratelyC.suddenly D.lately9.I don't know the restaurant, but it's________ to be quite a good one.A.said B.told C.spoken D.talked10.Ade's constant________ from work made his boss very angry.A.sense B.absence C.appearance D.feelingⅡ.完形填空It was pouring outside. We all stood there __11__,some patiently, others annoyed__12__nature messed up(弄糟) their hurried day. I got lost in the sound and sight of the heavens__13__away the dirt and dust of the world.“Mom,let's run through the rain,” a girl's voice__14__ my attention. “No, honey . We'll wait until it__15__down a bit,” Mom replied.The young girl waited about another minute and__16__. “Mom, let's run through the rain. ”“We'll get wet if we do,” Mom said.“No, we won't, Mom. That's not what you said this morning,” the young girl said as she __17__her mom's arm.“This morning? __18__did I say we could run through the rain and not get wet?”“Don't you remember? When you were talking to Daddy about his cancer, you said: ‘If God can get us through this, he can get us through __19__. '”The entire crowd turned __20__. Mom paused and thought for a moment about __21__she would say. Now some would laugh it off and scold the girl for being __22__. But then we heard, “Honey, you are __23__. Let's run through the rain. If we get wet, maybe we just need washing,” Mom said. Then __24__they ran.We all stood __25__,smiling and laughing as they ran past the cars. Yes, they got wet. But they were __26__by a few who screamed and laughed like children all the __27__to their cars. Circumstances or people can take away your material possessions, and they can even take away__28__. But no one can ever take away your precious __29__. So, don't forget to make time and take the __30__to make memories every day! I hope you still take the time to run through the rain.11. A. talking B. expectingC. complainingD. waiting12. A. as if B. even if C. because D. when13. A. taking B. putting C. driving D. washing14. A. caught B. annoyed C.impressed D. called15. A. slows B. comes C. pushes D. stops16. A. asked B. repeated C. required D. added17. A. pulled B. touched C. waved D. felt18. A. Why B. How C. When D. Where19. A. the rain B. the diseaseC. anythingD. something20. A. still B. silent C. serious D. angry21. A. if B. how C. whether D. what22. A. dishonest B. silly C. careless D. forgetful23. A. stupid B. wrong C. right D. clever24. A. off B. along C. on D. over25. A. sighing B. jokingC. discussingD. watching26. A. followed B. guided C. respected D. praised27. A. time B. way C. same D. best28. A. house B. money C. health D. time29. A. children B. memoriesC. courageD. experience30. A. possibilities B. opportunitiesC. riskD. challengeⅢ.阅读理解Is there something that you've always wanted to try but just never had the time? Well, make plans to try it now since you are on summer vacation. Not all vacations call for taking a tour bus to take photos of famous landmarks. Some vacations allow you plenty of opportunities to learn.The most difficult aspect of a learning vacation may be choosing one because the possibilities are endless. If you enjoy cooking, various companies can take you to Italy, France, Spain, Mexico or even Peru. Once there, you can learn to prepare the local cuisine(烹饪). Trips are often planned to fit in with local food festivals or special events.The term “learning vacation” often brings language to mind.The best way to learn a language is in an environment where it's spoken. Study Spanish, French or English. Or attempt a more unusual language like Polish, Estonian or Thai. You'll be able to learn about the country and absorb the culture at the same time.If you are fond of sports, you can polish your skills or learn new ones. Golf and tennis schools welcome players of all levels. If you want a bigger thrill, you can learn to surf, go climbing or race cars.It's even possible to learn the art and techniques of bull fighting while on vacation!You can also discover our inner artist. Many places offer painting classes in different mediums. The scenic locations of the schools offer plenty of subjects that provide inspiration for practice.If you prefer capturing the world on film, take a photography vacation. Travel with a small group to photograph beautiful animals or scenery. You can also practise your technique on people or at historical sights.Once you decide on a vacation, choose a company carefully. Request names of recent customers you can contact, and then ask them for an evaluation. The more you know before you go, the better prepared you'll be. Then go out and learn something!31. Why is it hard for you to decide on a learning vacation?A.Because it is hard for you to make plans.B.Because the possibilities are unlimited.C.Because there are many good foods from abroad.D.Because there're too many food festivals or events.32.The advantage of learning a language in its native country is that ________.A.the environment is fit for you to use the languageB.you are able to learn the original foreign languageC.native speakers offer you a lot of chances to practiseD.you can learn the language and experience its culture33.Which of the following sports suits you if you don't like thrills?A.Car racing. B. Playing tennis.C.Rock climbing. D. Surfing.34.The structure of the text would be________.Ⅳ.阅读填空根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
2017-2018学年语言朋友(27)完形填空My husband, Tom, has always been good with animals, but I was still amazed when he befriended a female grouse (松鸡).It's __1__for a grouse to have any contact (接触) with people.In fact, they're hard to spot, __2__ they usually fly off when they hear humans approaching.This grouse came into our lives in__3__.Tom was working out in the field when he__4__ her walking around at the edge of the field.She was __5__unafraid and seemed to be __6__ about what he was doing.Tom saw the __7__bird several times, and she got more comfortable around him.We quickly grew__8__of the bird and decided to call her Mildred.One day, as Tom was working, Mildred came within a few feet of him to watch.Tom__9__he didn't see her and kept working to see what she would do next.Apparently, she didn't like to be __10__.She'd run up and peck (啄) at Tom's hands, then __11__ off to see what he would do.This went on for about 20 minutes, until Mildred became tired of the __12__and left.As spring went and summer came, Mildred started to __13__ more and more often.__14__Mildred felt comfortable enough to jump up on Tom's leg and stay long enough for me to get a__15__ of the two of them together.This friendly grouse soon felt__16__ not just with our family, but with anybody who walked or drove by.When hunting season opened, we put a __17__ at the end of our driveway asking __18__ not to shoot our pet grouse.My father, who lived down the road, __19__warned people not to shoot her.__20__,hunters would stop and take pictures, because they had never seen anything like her.解题导语:作者的丈夫与一只松鸡成了朋友!在狩猎季节,大家一起提醒猎人不要猎杀那只松鸡,事实上,猎人们对这只和人类成为好朋友的松鸡非常好奇。
高考英语一轮复习语言朋友(19)课时作业(含分析)北师大版完形填空It was already half past seven and I was running late again for the dinnerappointment with my wife, Eleanor.We had __1__ to meet at the restaurant at seveno'clock.I felt a little uneasy, but to my __2__I had a good excuse: A business meeting had __3__ and I'd wasted no time getting to the dinner.When I arrived at the __4__ I apologized and told Eleanor I didn't mean to belate.She screamed, “You never mean to. ” Well, I__ 5__ tell she was angry. “I'm sorrybut it was not __6__,”my explanation seemed to Several weeks later, I said.Thenmake thingswhen I__9__I told her about the business meeting.__7__,worse, which started to drive__8__ mad as well.the situation to my friend Ken Hardy, he smiled,“You__10__ a classic mistake.You're stuck __11__ your own way of thinking.Youdidn't __12__ to be late.But that's not the point.What is__13__ in your communication is how your lateness affected Eleanor.” He pointed out that I focused on theintention__14__Eleanor focused on the result.Thus,__15__of us felt misunderstood and crazy.Thinking more about Ken's words, I __16__recognized the root cause of such disagreement.It's the result of the action that really__17__.I should have started the conversation by expressing __18__ my actions affected Eleanor and __19__thediscussions about my intention for later, much later and even never.Later on, after talking to Eleanor and really__20__her experience of the results of my lateness, I've managed to be on time a lot more frequently.解题导语:人与人之间为何会产生误会?作者经过自己的经历告诉我们:那是由于我们思虑的出发点不同样,有些人只关注原由忽略了自己的行为对他人的影响,而有些人只关注结果,没有去考虑原由。
语言朋友(20)阅读理解English is an important global language, but that doesn't mean it's easy to learn.Many experts have tried to make English easier for students to learn-but they weren't always successful.In 1930, Professor CK Ogden of Cambridge University invented Basic English.It had only 850 words (and just eighteen verbs) and Ogden said most people could learn it in just thirty hours.The problem was that people who learned Basic English could write and say simple messages, but they couldn't understand the a nswers in “real〞English! It was also impossible to explain a word if it wasn't in the Basic English word list.For example, if you wanted a watermelon, you asked for “a large green fruit with the form of an egg, which has a sweet red inside and a good taste〞!RE Zachrisson, a university professor in Sweden, decided that the biggest problem for learners of English was spelling, so he invented a language called Anglic.Anglic was similar to English, but with much simpler spelling.“Father〞became “faadher〞,“n ew〞became “nue〞and “years〞became “yeerz〞.Unfortunately for some students of English, Anglic never became popular.Even easier is the language which ships'captains use; it's called “Seaspeak〞.Seaspeak uses a few simple phrases for every possible situation.In Seaspeak, for example you don't say, “I'm sorry what did you say?〞or “I didn't understand, can you repeat that?〞...it's just, “Say again.〞 No more grammar!In the age of international communication through the Internet, who knows what a new form of English might appear.A large number of the world's emails are in English and include examples of “NetLingo〞 like OIC (Oh, I see) and TTYL (Talk to you later).In another fifty years, English as we know it might not exist ...we will probably all speak fluent Internetish!解题导语:为了降低英语学习的难度,专家们尝试了几种简化英语的方法,但并不总能成功。
2017-2018学年语言朋友(11)阅读理解For years we have been dieting strictly after the year-end overeating, afraid that when summer comes, the bigger size we have accumulated will betray how we ate.Now scientists say, it's a little bug that causes obesity(肥胖).As the holiday season with its abundant feasting arrives, millions of food lovers are keeping an eye on their figures.But scientists have found that weight gain is not about too much Christmas turkey or hot chocolates, but some bacteria in your guts(肠).Chinese scientists recently discovered a type of bacteria in guts that may be to blame for obesity.A research team led by Zhao Liping, a professor in Shanghai, has identified a precise link between a particular kind of bacteria and unusual weight gain.“The endotoxin(内毒素) released by the bacterium can activate(激活) a gene that helps produce fat.And it also deactivates a gene that consumes fat,” Zhao says.Scientists have long believed that microscopic organisms in the gut, microbiota, may play a very important role in weight gain, but they had never been able to prove it.In 2004, American microbiologist Jeffrey Gordon and his colleagues discovered a general link between obesity and gut microbiota in mice.While a link was believed to exist, proving it was another matter.“The list of diseases that they may play a role in is just growing and growing,” says Lita Proctor, director of the US National Institutes of Health.“But the problem is that we're only able to look at associations and aren't yet able t o conduct causeandeffect studies.”In the clinical study, researchers found a growth of too much endotoxin-producing bacteria, leading to 35 percent of the gut bacteria, in an obese patient whose initial weight was 175 kg.Based on this information, researchers tried to cure the patient by feeding him a specialized nutritional liquid food to decrease the bacteria in his guts to ignorable amounts.After 23 weeks, the patient lost 51.4 kg, with his fatty liver disease having almost disappeared.解题导语:科学家们发现肥胖与肠道里的一种细菌有关。
2017-2018学年语言朋友(33)阅读理解Organic food, once considered something that only health fanatics desired, is now a regular feature at most supermarkets.And that has created a bit of a dilemma.On the one hand, you have a conventionally grown apple.On the other, you have one that's organic.Both apples are firm, shiny and red.Both provide vitamins and fiber, and both are free of fat, sodium and cholesterol.Conventionally grown food generally costs less, but is organic food a better choice? The advantages claimed for such foods over conventionally grown and sold food products are now being debated on a large scale.Supporters of organic foods-a term whose meaning varies greatly-are frequently telling the world that such products are safer and more nutritious than others.The growing interest of consumers in the safety and nutritional quality of daily foods is a welcome development.However, much of this interest has been aroused by sweeping claims that the conventional food supply is unsafe or inadequate in meeting nutritional needs.Almost daily, the public is surrounded by claims for “noaging”diets, new vitamins and other wonder foods.There are numerousunsubstantiated reports that natural vitamins are superior to manmade ones, that fertilized eggs are nutritionally superior to unfertilized eggs, that untreated grains are better than those treated with insect spray and the like.Although most of these claims are not supported by scientific evidence, large amounts of written material about the benefits of organic foods makes it difficult for people to separate fact from fiction.As a result, claims that eating a diet consisting of organically grown foods prevents or cures disease or provides other benefits to health have become widely advertised and form the basis for people's opinion.One thing that most organically grown food products seem to have in common is that they cost more than conventionally grown foods.But in many cases consumers are misled if they believe organic foods can maintain health and provide better nutritional quality than conventionally grown foods.So there is real cause for concern if consumers, particularly those with limited incomes, distrust the conventional food supply and buy only expensive organic foods instead.解题导语:近年来,人们争相吃有机食品,但作者认为有机食品花费大且不一定比传统食品更有营养价值。
语言朋友(13)阅读理解Several years ago, I had to replace a receptionist for my unit.Before I advertised for the position, I was approached by another manager, and asked if I would consider a transfer from his staff instead of opening a new competition.My natural question was to ask who he wanted me to consider and why.It appeared from his description of this employee, Maria, that she was having a lot of problems performing her duties, and had difficulties with her boss, and did not appear to respond to any attempts he, the manager, had made to settle the issues.Now, after listening to his explanation, I really had severe doubts.What crossed my mind, after this discussion, was that he wanted me to take a problem off his hands.I told him I would think about it and would let him know the next day.As promised, after thinking more about this potential performance issue, I decided that I would agree to speak with Maria privately before I made any decision.And, what I found out during this interview, left me deep in thought.As it turned out, the performance issue appeared to result from working for a boss who never extended a good morning, greeting, never gave a word of encouragement, and was constantly changing the work load and routines.The end result was a totally ruined employee who was unconfident, hated to see a new work day start.I decided to accept her transfer to my unit.What started out as a shy, withdrawn and frightened employee turned out to be one of the most productive and loyal employee that I had ever worked with.Maria couldn't do enough and was constantly asking for more and more responsibility.I was more than happy to give her what she needed -praise for work well done, respect as a person, and encouragement for doing well in anything she dealt with.Sometimes, we are guilty of holding others back from accomplishing or doing, or developing as they should or could.It may be a wise idea that we all look in the mirror, from time to time, to see what we are really like.解题导语:给予尊重、表扬和鼓励后,作者把别人认为是麻烦的员工转变成了好员工。
高考英语一轮复习语言朋友(3)课时作业(含分析)北师大版阅读理解WASHINGTON(April 7) - Teenagers with a bedroom TV tend to have poorer diet and exercise habits and lower grades in school than those without one,US researchers said on Monday.While many studies have examined TV viewing habits of young people , researchersat the University of Minnesota School of Public Health said little had been knownabout the consequences(结果)in particular for older teens of having a bedroom TV.They questioned 781 teens,aged 15 to 18,in the Minneapolis area.Of them,62 percent had a television in their bedrooms.Not surprisingly,those with a bedroom TV were more likely to watch it a lot,clocking four to five more hours in front of a television per week, the researchers said.The teens with a bedroom TV were classified(分类)as heavy TV watchers-at least five hours a day-compared to those without one.Girls with a bedroom TV got less exercise-1.8 hours per week compared to 2.5 hours for girls without a TV.They also ate fewer vegetables,drank more sweetened drinks and ate meals with their family less often.Boys with a bedroom TV had a lower grade point average than boys without one,as well as ate less fruits and had fewer family meals.“It really clearly points out that there's some merit to not allowing your childto have a TV in the bedroom,” said Daheia Barr-Anderson,one of the researchers.“When you upgrade your TV in the living room and you have this TV that's outof date but still usable,you should really resist(阻挡)putting it in one of your children's bedrooms-and resist the pressure from the child to have a TV in theirbedrooms,” she said in a telephone interview.解题导语:有的父亲母亲将客堂裁减的电视机放在孩子的寝室,可是这会对孩子造成不良影响。
2019-2020年高考英语北师大版一轮复习课时作业:语言朋友(64)I can never wipe off the memory that I met my current stepmom for the first time.After I parted with my father for ages, I moved to America and was__1__with him.In the beginning, she made sure to let me know that I was wele in her __2__.I remember when I first saw her at the__3__.It was different, but not __4__.Over the past years there is __5__I needed that she did not provide.I'm the young woman I'm today because she made sure to__6__me properly.Yesterday I went to see her for Mother's Day.When I gave her __7__ , she held my face in both of her hands and kissed me straight on the __8__even though I had the flu.Her simple act of affection__9__me back to my first night in America.After I was__10__up from the airport we went home and she__11__my luggage and took me shopping for new clothes since the ones I had brought with me from Africa were a bit __12__.That night before I went to bed, she came to my room, the first room I had ever had of my own.She told me she was __13__ to have me and that she would take good care of me.Before she __14__ she asked me for a hug.That was my__15__first hug and I was 11 years old at that time.I'm 23 years old now and I have received many__16__ over the past years, but none has given me a greater__17__or deeper impression.I regarded her as my__18__mother because my new life began when I came to__19__with her.Today I say to my mother, Mrs.Sherrill Kirundi, thank you, mom.Thank you for your giving me my__20__childhood back.解题导语:继母无私的爱让作者重新享受到童年幸福,作者在文中表达了对继母的感激和爱。
2017-2018学年语言朋友(54)完形填空The world always makes way for the dreamer.When I was twelve years old, my father took me to see Zig Zigler.I remember sitting in that dark hall listening to Mr.Zigler__1__everyone's spirits up to the ceiling, I__2__ there feeling like I could do anything.When we got to the car, I turned to my father and said, “Dad, I want to__3__ people feel like that.”My father asked me what I __4__.“I want to be a motivational speaker just like Mr.Zigler.”I replied.A(An)__5__ was born.Recently, I began seeking my dream of __6__ others.After a four year relationship with Fortune 100 Company__7__as a sales trainer and ending as a regional sales manager, I left the company at the height of my __8__.Many people were __9__ that I would leave after earning a six figure income.And they asked why I would risk everything for a __10__.I made my __11__to start my own company and leave my worryingless position after __12__ a regional sales meeting.The vice president of our company delivered a __13__that changed my life.He asked us, “If a god would offer you three wishes, what would they be?”After giving us a __14__to write down the three wishes, hethen asked us, “Why do you need a__15__?” I would never forget the power I felt at that moment.I realized that__16__ I had accomplished in the past had prepared me for this moment.I was ready and didn't need a god's help to become a motivational speaker.A motivational speaker was__17__ .Having made that decision, I was immediately__18__.One week after I gave notice, my husband was laid off from his job, and now we had no__19__.But I held fast to my dream.The wonder really began to happen.In a short time my husband found a better job.And I was able to book several __20__engagements with new customers.I discovered the incredible power of dreams.解题导语:作者通过自己的亲身经历告诉我们:只要有梦想,就能做自己想做的事。
2017-2018学年语言朋友(19)完形填空It was already half past seven and I was running late again for the dinner appointment with my wife, Eleanor.We had __1__ to meet at the restaurant at seven o'clock.I felt a little uneasy, but to my __2__I had a good excuse: A business meeting had __3__ and I'd wasted no time getting to the dinner.When I arrived at the __4__ I apologized and told Eleanor I didn't mean to be late.She screamed, “You never mean to.” Well, I__5__ tell she was angry.“I'm sorry but it was not __6__,” I said.Then I told her about the business meeting.__7__,my explanation seemed to make things worse, which started to drive __8__ mad as well.Several weeks later, when I__9__ the situation to my friend Ken Hardy, he smiled, “You__10__ a classic mistake.You're stuck __11__ your own way of thinking.You didn't __12__ to be late.But that's not the point.What is__13__ in your communication is how your lateness affected Eleanor.” He pointed out that I focused on the intention__14__Eleanor focused on the result.Thus, __15__of us felt misunderstood and crazy.Thinking more about Ken's words, I __16__recognized the root cause of such disagreement.It's the result of the action thatreally__17__.I should have started the conversation by expressing __18__ my actions affected Eleanor and __19__the discussions about my intention for later, much later and even never.Later on, after talking to Eleanor and really__20__her experience of the results of my lateness, I've managed to be on time a lot more frequently.解题导语:人与人之间为什么会产生误解?作者通过自己的经历告诉我们:那是因为我们思考的出发点不一样,有些人只关注原因忽视了自己的行为对别人的影响,而有些人只关注结果,没有去考虑原因。
1.A.started B.agreedC.continued D.managed解析:根据上文可知“我”和妻子约好7点在餐厅见面。
agree“同意”符合语境。
答案:B2.A.relief B.surpriseC.regret D.sorrow解析:根据but及下文可知选A。
句意:但让我宽慰的是我有一个很好的理由:商业会议超时了,我一点也没有浪费时间,立刻就赶到餐厅。
答案:A3.A.broken out B.closed downC.faded away D.run over解析:break out“爆发”;close down“关闭”;fade away “褪色,慢慢消逝”;run over “超过限度”。
故选D,其他选项不符合语境。
答案:D4.A.house B.roomC.restaurant D.supermarket解析:根据文章第二句“We had...at the restaurant at seven o'clock”可知选C。
答案:C5.A.could B.mustC.will D.might解析:句意:她对我尖叫:“你从来都不想迟到,但是你经常迟到。
”“我”能够辨别妻子很生气。
答案:A6.A.movable B.comfortableC.acceptable D.avoidable解析:根据第一段可知开会时间超限导致了“我”迟到。
所以“我”认为这是不可避免的。
答案:D7.A.However B.ThereforeC.Moreover D.Otherwise解析:根据下文“seemed to make things worse”可知,此处应选however表示转折。
句意:“我”就告诉她因为会议时间超限。
然而“我”的解释似乎让情况更糟糕了,她更生气,我也几乎要疯掉了。
答案:A8.A.her B.himC.me D.them解析:根据“as well”可知选C。
答案:C9.A.spread B.wroteC.translated D.described解析:句意:几个星期以后我把这件事情描述给我的朋友。
describe“叙述,描述”。
答案:D10.A.knew B.madeC.found D.took解析:make a mistake“犯错误”。
句意:他告诉我说我犯了一个经典的错误。
只关注自己,没有注意到自己的行为对对方产生的影响。
答案:B11.A.in B.beyondC.for D.against解析:be stuck in “受困于……”符合语境。
答案:A12.A.need B.proveC.pretend D.intend解析:句意:你不打算迟到,但这并不是关键点,关键是你的迟到影响了你的妻子。
intend“打算”。
答案:D13.A.funny B.importantC.possible D.simple解析:句意:在你们的交流中重要的是你的迟到如何影响到了你的妻子。
迟到的结果很重要。
答案:B14.A.while B.afterC.until D.unless解析:根据上下文可知此处表转折关系,故选while。
答案:A15.A.all B.noneC.both D.neither解析:考查代词辨析。
这是一件“我”和妻子之间的事情,所以使用both表示“两者都”;结果我们两个都感觉到被误解了,也都很生气。
答案:C16.ually B.merelyC.hardly D.gradually解析:句意:我逐渐认识到我们之间的分歧的根本原因了,在于我们看待问题的角度不一样。
gradually“逐渐”,其他选项不符合语境。
答案:D17.A.inspires B.mattersC.improves D.challenges解析:本句是一个强调句式。
句意:真正重要的是行动的结果。
matter “事关紧要,重要”。
答案:B18.A.how B.whyC.when D.what解析:句意:我本应通过表达我的行动如何影响到妻子开始我们的谈话。
故选A,其他选项不符合语境。
答案:A19.pared B.reportedC.finished D.saved解析:句意:我应该先向她道歉,说明我的行动影响到了她,事后再向她解释我迟到的原因,甚至永远都不要解释。
选save在此指“免去,避免”。
答案:D20.A.showing B.satisfyingC.understanding D.destroying解析:本句表示能够理解对方的想法了。
understanding是本文的关键词。
答案:C七选五Too much eating.Too many unhealthy foods.Too many advertisements for food.Too few activities.Different explanations are offered for America's weight problem - a problem increasingly shared by others countries.21.________Schools have been urged to increase physical education, an important tool for public health.And many schools have done so.Yet now comes a study showing an increase in the number of injuries in P.E.class.Injuries increased by 150% between 1997 and 2007.The study involved injuries treated in hospital emergency departments.Only 2% were serious.The researchers did not try to identify the causes of the increase, but they have some ra McKenzie from Ohio State University is the lead researcher.22.____________.For example, a 2004 study showed that the number of school nurses nationally failed to meet federal guidelines.Schools without a nurse on duty may be more likely to send an injured child to a hospital.“23.________This …New PE.‟ exp ands the kinds of sports that are taught.But activities that some schools offer now, like rock climbing walls and skateboarding, can also expand the risks, ”says CherylRichardson.She is with the National Association for Sport and Physical Education.Also, she says not all states require PE teachers to be specially trained.24.________Cheryl Richardson also points out one of the study's findings that injuries are often result of contact with a person or a structure.This tells her that the teachers might not give each student enough space to move around safely.Six activities produce 70% of all injuries: running, basketball, football, volleyball, soccer and gymnastics.The study appeared online this week in Pediatrics, the journal of the American of Pediatrics.25.________Larger classes can mean less supervision.The National Association for Sport and Physical Education says twenty to thirty students in a PE class should be the limit.A.The researchers say larger class sizes are another possible reason for the increase in injuries.B.Another possible reason for more injuries is a change in the traditional idea of physical education.C.Almost one fifth of American children and teenagers are overweight.D.The government has passed laws as a guide for the weight problem.E.Untrained teachers could be less likely to recognize unsafe conditions.F.She says one possibility is a decrease in number of school nurses during the period they studied.G.The public appealed to the school to have more school nurses. 答案:21~25CFBEA。