1、Nearly a million American youngsters, some as young as 6, rely on personal trainers to shape up (塑身), lose weight or improve in sports. Many parents, worried about their childrens weight and fitness, say that working with a trainer motivates (激发) their kids and helps them build confidence. So they a
2、re willing to spend the 40 to 60 an hour that trainers generally charge.The Bostonbased groups latest figures, from 2005, show that 824,000 children between the ages of 6 and 17 use trainers. With many high school students not getting exercise at school, more parents are turning to trainers to help
3、their children stay fit. More than onethird of American children are overweight and experts warn of future health problems ahead from diabetes (糖尿病) to heart disease.Kathleen Ballew said that her 7yearold son, Jordan Sims, who would begin second grade in the fall, could benefit from some oneonone ti
4、me with a fitness professional. She had noticed that he needed help with balance and coordination (协调能力) in soccer and karate (空手道). She also observed that he did not want to do things that kids normally did, like climbing on park equipment. After Jordan had begun working out at Baylor Tom Landry Fi
5、tness Center in Dallas with a trainer about a year before, he moved more naturally and confidently. His trainer, Lauren Jacobson, works with about half a dozen kids under 18. She said she noticed that training helped build confidence and a sense of accomplishment, along with helping kids get in bett
6、er shape.Section Warming Up & Reading PrereadingADVICE FROM GRANDADDear James，It is a beautiful day here and I am sitting under the big tree at the end of the garden. I have just returned from a long bike ride to an old castle. It seems amazing that at my age I am still fit enough to cycle 20 kilome
7、tres in an afternoon. Its my birthday in two weeks time and Ill be 82 years old! I think my long and active life must be due to the healthy life I live.This brings me to the real reason for my letter, my dear grandson. Your mother tells me that you started smoking some time ago and now you are findi
8、ng it difficult to give it up. Believe me, I know how easy it is to begin smoking and how tough it is to stop. You see, during adolescence I also smoked and became addicted to cigarettes.,at the end of 在的尽头/末端在It seems amazing that .中， that引导主语从句，it是形式主语。due to 由于due/dju/adj.欠款的；预定的；到期的此处第一个it是形式宾语，
9、真正的宾语是动词不定式短语to give it up。tough/tf/adj.困难的；强硬的adolescence/dlesns/n.青春期adolescent/dlesnt/n.青少年 adj.青春期的addicted to 对有瘾addicted/dIktId/adj.入了迷的；上了瘾的爷爷的忠告亲爱的詹姆士：今天这儿的天气很好。我正坐在花园尽头的那棵大树底下呢。我刚刚才回来，骑自行车跑了很长一段路，一直到了古城堡。这好像很惊奇吧，在我这样的年纪，仍然身体足够健康能在一个下午骑车跑20千米。再过两个礼拜就是我82岁的生日了！我想我(之所以)长寿而且精力充沛，要归功于我过的健康生活。这就是
10、我写信给你的真正原因，我亲爱的孙子。你妈妈告诉我，你不久前开始吸烟了，而且现在你发现很难把它戒掉。相信我吧，我知道开始吸烟是多么容易而戒烟是多么困难。你知道，当我还是一个十几岁的孩子的时候，我也吸过烟，而且对烟还上了瘾。By the way, did you know that this is because you become addicted in three different ways? First， you can become physically addicted to nicotine, which is one of the hundreds of chemicals in
11、 cigarettes. This means that after a while your body becomes accustomed to having nicotine in it. So when the drug leaves your body, you get withdrawal symptoms. I remember feeling badtempered and sometimes even in pain. Secondly, you become addicted through habit. As you know, if you do the same th
12、ing over and over again， you begin to do it automatically. Lastly, you can become mentally addicted. I believed I was happier and more relaxed after having a cigarette, so I began to think that I could only feel good when I smoked. I was addicted in all three ways, so it was very difficult to quit.
13、But I did finally manage.first和下文的secondly, lastly等连用，表示顺序。which引导非限制性定语从句，修饰nicotine。accustomed/kstmd/ to 习惯于withdrawal/wIdrl/n.收回；戒毒过程badtempered adj.脾气暴躁的；易怒的as引导定语从句，if引导条件状语从句。automatically/tmtIklI/adv.无意识地；自动地mentally/mentlI/adv.精神上；智力上quit/kwIt/vt.停止(做某事)；离开在“do/does/did动词原形”结构中，do/does/did为助
14、动词，意为“确实；的确”，用于肯定句，起加强语气的作用，有人称和时态的变化。这儿我顺便问你一个问题，你知道上瘾有三个不同方面的原因吗？首先，你会在身体上对尼古丁有瘾，它是香烟里几百种化学物质之一。这就是说，过一段时间以后，你的身体习惯了香烟里的尼古丁。因此一旦你的体内没有这种麻醉剂了，你就会有脱瘾症状。我记得曾感到烦躁，有时甚至痛苦。其次，你也可能因为习惯而上瘾。你知道，如果你反反复复地做同一件事情，你就会开始自动地做它。最后，你可能在心理上上瘾。我那时认为，抽了一支烟后就会感到更轻松愉快，于是我就开始认为只有抽烟才能使自己感觉良好。我(之所以)上瘾共有三个方面的原因，因此，要戒烟就很难。但是
15、我最终还是戒掉了。When I was young, I didnt know much about the harmful effects of smoking. I didnt know, for example, that it could do terrible damage to your heart and lungs or that it was more difficult for smoking couples to become pregnant. I certainly didnt know their babies may have a smaller birth we
16、ight or even be abnormal in some way. Neither did I know that my cigarette smoke could affect the health of nonsmokers. However, what I did know was that my girlfriend thought I smelt terrible. She said my breath and clothes smelt, and that the ends of my fingers were turning yellow. She told me tha
17、t she wouldnt go out with me again unless I stopped! I also noticed that I became breathless quickly, and that I wasnt enjoying sport as much. When I was taken off the school football team because I was unfit， I knew it was time to quit smoking.I am sending you some advice I found on the Internet. I
18、t might help you to stop and strengthen your resolve. I do hope so because I want you to live as long and healthy a life as I have.Love fromGrandadeffect/Ifekt/n.结果；效力do damage to . 对造成伤害lung/l/n.肺or连接两个that引导的宾语从句，其中第一个that可省略，但第二个that不能省略。pregnant/prennt/adj.怀孕的abnormal/bnml/adj.畸形的；异常的neither位于句首
19、，所在的句子用部分倒装结构。what引导主语从句；that引导表语从句。smell此处为连系动词，表示“闻起来”，后常接形容词。said后有两个宾语从句。unless表示“除非”，引导条件状语从句。breathless/brelIs/adj.气喘吁吁的；屏息的take off此处意为“开除；除名”，还可作“脱掉；起飞；成名”讲。unfit/nfIt/adj.不健康的；不合适的；不合格的strengthen/stren/vt.加强；巩固；使坚强 vi.变强resolve/rIzlv/n.决心；决定本句中第一个as为副词，修饰long和healthy，第二个as为连词，引导方式状语从句。asadj
20、.a/ann.as 表示“像一样的”。在我年轻的时候，关于吸烟的危害性我知道得并不多。例如，我不知道抽烟能严重侵害人的心脏和肺部，也不知道吸烟的夫妇生育能力会下降。我当然不知道他们的婴儿在出生时可能体重较轻甚至在某些方面不正常。我也不知道，我自己吸烟还会损害那些不吸烟的人的健康。然而我的的确确知道，我的女朋友觉得我身上很难闻。她说我的呼吸、我的衣服都有烟味，而且我的指尖都变黄了。她说在我把烟戒掉之前她是不会再同我一起外出的！我也发现我(跑步)很快就气喘，也不像以前那样爱好运动了。当我因为身体不健康而被学校足球队除名时，我知道该是戒烟的时候了。我把我从网上找到的一些忠告寄给你。这也许对你戒烟和坚
21、定决心有帮助。我的确希望如此，因为我想让你能像我这样活得健康长寿。爱你的爷爷How can you stop smoking?It is not easy to stop smoking, but millions have managed to quit and so can you. Here are a few suggestions.Prepare yourself. Decide on a day to quit. Dont choose a day that you know is going to be stressful, such as the day of an exam.
22、 Make a list of all the benefits you will get from stopping smoking. Then throw away your last packet of cigarettes.Be determined. Every time you feel like smoking a cigarette， remind yourself that you are a nonsmoker. Reread the list of benefits you wrote earlier.manage to do设法完成某件困难的事情so置于句首，表示前者情
23、况也同样适用于后者时，句子要用部分倒装结构。decide on 对作出决定decide on (doing) sth.决定(做)某事decide to do sth.决定做某事packet/pkIt/n.小包；小盒feel like (doing) 想要(做)every time此处相当于连词，引导时间状语从句，意为“每次”。你怎样才能戒烟呢？戒烟不容易，但几百万的人已经成功地戒掉了烟，所以你也能。这儿有几点建议：做好准备。确定一个开始戒烟的日子。不要选择你明知有压力的日子，例如要考试的那一天。把戒烟的所有好处列一份清单。(在你计划戒烟的前一天，)把你最后一包香烟扔掉。下定决心。每次你想吸烟的
24、时候，要提醒自己你是一个不吸烟的人。把你早先所写的好处再读一遍。Break the habit. Instead of smoking a cigarette, do something else. Go for a walk, clean your teeth, drink some water, clean the house; in fact, do anything to keep your mind and especially your hands busy.Relax. If you start to feel nervous or stressed, do not reach
25、for a cigarette. Try some deep breathing instead. Do some relaxation exercises every time you feel stressed.Get help if you need it. Arrange to stop smoking with a friend so you can talk about your problems, or join a stopsmoking group. If you feel desperate， you might like to talk to a doctor or ch
26、emist about something to help you, like nicotine chewing gum.Keep trying. Do not be disappointed if you have to try several times before you finally stop smoking. If you weaken and have a cigarette, do not feel ashamed. Just try again. You will succeed eventually.break the habit 改掉习惯“keep宾语形容词”意为“使处
27、于状态”reach for 伸手去拿/够relaxation/rilkseIn/n.放松；松弛desperate/desprt/adj.绝望的；拼命的chemist/kemIst/n.药剂师；化学家gum/m/n.树胶chewing gum 口香糖disappointed/dIspIntId/adj.失望的；沮丧的weaken/wikn/vi.(对某事的决心)动摇；减弱vt.(使)变弱ashamed/eImd/adj.感到惭愧或羞耻的破除旧习。不要抽烟，而去做点别的事情。去散散步、刷刷牙、喝点水、打扫房间。其实，只要是能使你的大脑，特别是手不得闲的事情，你都可以去做。,放松。如果你开始感到紧张
28、或者有压力，不要伸手去拿香烟。试着做做深呼吸来代替。每当你感到有压力时，做做放松运动。,必要时找人帮忙。同朋友一起来安排戒烟，这样你们可以谈谈你们的问题，(你)也可以参加一个戒烟小组。如果你的确感到很绝望，你还可以找一个医生或药剂师来谈谈关于帮助你的一些事情，如嚼含尼古丁的口香糖等。,保持努力。如果你不得不尝试多次戒烟才能最终把它戒掉，你也不要失望。如果你意志薄弱而吸了一支烟，不要感到羞愧。那就再努力戒就是了。最终你会成功的。PrereadingPlease match the words with their proper meanings.1ban Aa state of mental o
29、r emotional strain or suspense2abuse Bto make sth. stronger or become stronger3desperate Cfeeling or showing great despair or ready to do anything regardless of danger4strengthen Dto make a bad or wrong use of5stress Eto say that sth. must not be done, seen, used, etc.6due Ffeeling embarrassed and g
30、uilty because of sth. you have done7automatic Gto leave a job, school etc, especially without finishing it completely8mental Hrelating to the health or state of someones mind9quit Idone without thinking, especially because you have done the same thing many times before10ashamed Jowed to someone eith
31、er as a debt or because they have a right to it15 610 答案：15EDCBA610JIHGFLeadinTell which is healthy and which is unhealthy.Healthy activities：ABCUnhealthy activities：DEFWhilereadingFastreadingSkim the text and do the following exercises.1Whats the main idea of the first part?AThe grandfather lives a
32、 healthy life because of his quitting smoking.BThe three ways of becoming addicted to smoking.CThe harmful effects of smoking.DA letter explaining how a smoker becomes addicted to cigarettes and why he should give it up.2Whats the main idea of the second part?AAdvice on how to stop smoking.BHow to p
33、repare yourself.CSuggestions on breaking the habit of smoking.DMillions have managed to quit smoking and so can you.答案：1.D2.A3Find out the main idea (or topic sentence) of each paragraph：Para.1AGrandad talks about James problem of smoking.Para.2 BThe harmful effects of smoking.Para.3 CGrandad tells
34、about the life he is living and the importance of a healthy life.Para.4 DGrandads hope for James and his advice on stopping smoking.Para.5 EThe three different ways of becoming addicted.Para.1 C Para.2 A Para.3 E Para.4 B Para.5 D CarefulreadingRead the text and choose the best answers.1Why James gr
35、andfather wrote to James?ABecause he wanted to tell James his experience.BBecause he wanted to tell James the harmful effects of smoking.CBecause he wanted to help James give up smoking.DBecause he wanted to help James get some information.2From Para.3.we can learn that . Aa person can be addicted t
36、o nicotine because nicotine is one of the chemicals in cigarettesBa person will be addicted to smoking if he treats it as a habitCa person will feel sick if his body gets used to having nicotineDa person will really feel relaxed when having a cigarette3Which is NOT the effect of smoking?ACausing ter
37、rible damage to heart and lungs.BAffecting the health of nonsmokers.CMaking the clothes turn yellow.DNot enjoying sport.4In what way did the old man try to persuade his grandson to give up smoking?AUsing scientific theory.BHis failure in love.CHis sports activity.DHis own experience.5The following s
38、tatements are true EXCEPT .AJames grandfather was tired when returning from a long bike rideBthere are three ways a person can become addicted to smokingCkeeping your hands busy will help stop smokingDsome people have to try several times before quitting smoking答案：15CBCDAStudyreadingAnalyze the foll
39、owing difficult sentences in the text.1Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.句式分析本句为主从复合句，that引导的宾语从句作tells的宾语，在that从句中and 连接两个并列分句，其中在后一分句中“finding it difficult to give it up”为“finditadj.to do sth.”结构，其中it作形式宾语，真正的宾语是后面的不定式短语t
40、o give it up，形容词difficult作宾语补足语。尝试翻译你妈妈告诉我，你不久前开始吸烟了，而且现在你发现很难把它戒掉。2Believe me, I know how easy it is to begin smoking and how tough it is to stop.句式分析本句中believe me作插入语，know后跟了两个how引导的宾语从句，其句式为“howadj./adv.主语谓语”，其中it为形式主语，不定式短语为真正的主语。尝试翻译相信我吧，我知道开始吸烟是多么容易而戒烟是多么困难。3I believed I was happier and more r
41、elaxed after having a cigarette, so I began to think that I could only feel good when I smoked.句式分析尝试翻译我那时认为，抽了一支烟后就会感到更轻松愉快，于是我就开始认为只有抽烟才能使自己感觉良好。4It is not easy to stop smoking, but millions have managed to quit and so can you.句式分析此句是由but连接的并列句，其中第二个分句又是由and连接的并列句，其中的so can you是倒装结构，即“so情态动词另一主语”结
42、构。此结构中除了用情态动词之外，还可以用助动词和be动词。尝试翻译戒烟不容易，但几百万的人已经成功地戒掉了烟，所以你也能。.阅读理解AOur story begins at the John Burroughs Elementary School in Washington,DC. The schools kindergarten students are staying late today an hour after classes normally end. The boys and girls are not seeking help with reading skills or ma
43、thematics. Instead, they are tasting kale, a vegetable that many of them are eating for the first time.The schools teacher Dionne Hammiel says her students have learned healthy eating habits from the program. She hopes they will keep a healthy diet for the rest of their lives.The program is taught b
44、y young people like Karen Davison. She is a member of FoodCorps. The nonprofit group gets money from the AmeriCorps National Service Program. Since the beginning of the school year, Ms. Davison has spent each day in this Washington,DC. classroom. She gives the kindergartners vegetables that many of
45、them have never tasted. She teaches them where their food comes from and how they can choose to eat healthier meals.FoodCorps was set up five years ago. It sends more than 180 young Americans to 500 schools across the United States. The young people teach students about nutrition and how they can ea
46、t healthy food both at school and at home. FoodCorps also works with other groups to plant vegetable gardens in schools and bring healthier food to stores especially stores in cities. Many small urban stores often sell only packaged food.Maddie Morales is a member of FoodCorps. She says the groups w
47、ork is especially important in the fight against childhood obesity when a child has too much body fat. She notes that the child obesity rate in the United States is twice what it was 30 years ago.1Why are the schools kindergarten students staying late?AThey are attending extra classes.BThey are lear
48、ning about eating healthily.CThey are learning how to pick out fresh vegetables.DThey are being punished because of their poor performance.解析：选B细节理解题。由第一段“Instead, they are tasting kale . the first time.”和第二段第一句“The schools teacher Dionne Hammiel says . habits from the program.”可知，孩子们放学后还没走，是在学习健康饮食
49、。2What do we know about FoodCorps?AIt makes money by selling healthy food.BIt helps a lot in fighting against childhood obesity.CIt teaches students how to plant healthy vegetables.DIt aims at introducing rare vegetables across the United States.解析：选B细节理解题。由最后一段“She says the groups work is especiall
50、y important in the fight against childhood obesity .”可知，FoodCorps在解决儿童肥胖问题上的贡献尤为突出。3What can we infer from the text?AFood sold in city stores is usually unhealthy.BMost of the children in the program are overweight.CCompared with healthy food, packaged food is cheaper.DThe problem of overweight is g
51、etting worse in the United States.解析：选D推理判断题。由最后一段“She notes that the child obesity rate in the United States is twice what it was 30 years ago.”可知，美国的儿童肥胖问题更为严重了。BWhether its to help their dogs or themselves, about half of all Americans surveyed in a recent poll (民意测验) say they exercise regularly.
52、According to the poll, most people walk for exercise a few times a week. About a third say they walk every day.But are they kidding themselves to think a walk is really helping them? Should we all be running or jogging if we want to count that activity as good for us? Dr. Tim Church, who studies the
53、 effects of physical activity at Louisiana State Universitys Pennington Biomedical Research Center, made a study about that.Church headed a study with 464 postmenopausal (绝经后的) women who, for six months, came into the lab to walk a treadmill (跑步机) while researchers watched.The first group walked for
54、 73 minutes a week, the second 136 minutes a week and the third 190 minutes weekly. These women were walking slowly, and could easily carry on a conversation.“Surprisingly, the group that was only walking for 73 minutes a week slowly benefited a lot，” Church says. They say theyve gotten more physica
55、lly active from walking. They havent necessarily lost weight, but their pants fit differently.Its because they have less belly fat, he says, which is a very good thing. This document from the American Heart Association lists dozens of studies showing similar benefits from walking.And in Churchs stud
56、y, participants gained more than physical benefits. They also gained benefits like less anxiety and fewer symptoms of depression: They also discovered something many of us long for: more energy.“It wasnt a doseresponse (剂量效应) as in, the more exercise you did, the more your energy increased，”Church s
57、ays. “Actually, all three exercise groups increased their levels of energy the same.”4What does the underlined word “that” in Paragraph 2 refer to?AIf people should walk the dog.BThe effect of running or jogging.CIf people need to exercise hard to benefit.DThe importance of doing exercise regularly.
58、解析：选C代词指代题。由第二段开头的“But are they kidding themselves . as good for us？”及下文的研究可推断，画线词指代人们是否必须做高强度的运动才能受益。5The three groups in Churchs study .Awere of different agesBwere required to walk slowlyCwere in different physical conditionDwere required to do different exercises解析：选B细节理解题。由第四段末的“These women wer
59、e walking slowly, and could easily carry on a conversation.”可知。6At the end of Churchs study, women in the first group .Alost weightBlost belly fatCbenefited little Dbenefited the most解析：选B细节理解题。由第五段中的“their pants fit differently. Its because they have less belly fat .”可知。CSoda (苏打汽水), while sweet an
60、d inexpensive, may not be worth drinking. Sugary drinks can have many bad health effects, including a 26% greater risk of diabetes (糖尿病) for regular soda drinkers. And men drinking one can of sugary drinks per day have a 20% higher risk of having or dying from a heart attack than those who rarely dr
61、ink them. The health effects of drinking soda also affect preschool children, heightening their chances of becoming obese at a very young age. According to Harvard School of Public Health, one in three children in America are obese or overweight, and childhood obesity has tripled (增至三倍) in the last
62、30 years. Should government get people to reduce their drinking of soda and sugary drinks due to health effects?People in San Francisco were given the opportunity to voice their opinion on Proposition E, which suggested a soda tax (税). The tax, which needed to pass with a twothirds majority, would h
63、ave provided money for health and physical education programs, and the hope was that it would also discourage citizens from buying unhealthy drinks. Although San Franciscos Proposition E failed to be passed, Berkeley citizens succeeded in passing the nations first ever sugary drink tax on their simi
64、lar Measure D.People who were for the tax hoped that the price of sugary drinks would discourage people from buying them. Mexico recently introduced a tax on drinks, which, though not well received by the public, was successful in reducing the amount of soda bought. After the tax was put into effect
65、, Mexicos biggest soda production companys sales dropped by 6.4%.People who were against the tax were concerned about their right to buy whatever drinks they wanted, without any additional taxes. Those who also disagreed were the market, the bar, and soda industries, which would possibly lose money
66、from reduced sales of these drinks because of the added cost. And although the Proposition E tax money was supposed to go to cityoperated programs, some citizens were doubtful about how well this plan would have been carried out.语篇解读：本文是议论文。饮用碳酸饮料对健康有很多不利的影响，政府是否应该向碳酸饮料征税呢？7Harvard School of Public
67、Health found that in America .Asoda drinkers doubled in recent 30 yearsB26% of children are suffering from diabetesCthe number of obese children has increased greatlyDyoung soda drinkers often suffer from heart attacks解析：选C细节理解题。由第一段中的“one in three children in America are . in the last 30 years”可知，哈
68、佛公共卫生学院发现美国有三分之一的儿童肥胖或超重，而在过去的三十年中，肥胖儿童的数量增长了三倍。8What do we know about Proposition E?ASan Francisco citizens accepted it.BIt was passed successfully in Berkeley.CIt aimed to reduce the sales of sugary drinks.DIt was meant to raise money for poor children.解析：选C推理判断题。由第二段中的“the hope was that it would
69、also discourage citizens from buying unhealthy drinks”可知，对碳酸饮料征税，其目的是为了劝人们不要购买不健康的饮料。9According to the text, the tax in Mexico .Ahelped prevent people buying sugary drinksBgreatly reduced the production of soda drinksCreceived a warm welcome from the local citizensDforced many soda production compan
70、ies to close down解析：选A细节理解题。由倒数第二段中的“was successful in reducing the amount of soda bought . sales dropped by 6.4%”可知，墨西哥实施的饮料税收成功降低了碳酸饮料的销量。10Those who were against the tax worried that it might .Anot be carried out smoothlyBaffect their rights and interestsCfail to achieve the expected goalDdo no g
71、ood to society or the economy解析：选B推理判断题。由最后一段中的“were concerned about their right to buy whatever drinks . additional taxes”和“which would possibly lose money from reduced sales of these drinks because of the added cost”可知，反对征税的人士担忧税收会损害他们的权利和利益。.阅读七选五Large meals make people full and sleepy. 1 We want
72、 our children to learn, not falling asleep at their desks, so lets keep those lunches on the lighter side. You can do this if you provide them with a good breakfast.By working beside your children and discussing what they eat for lunch, you are helping them understand the importance of whole foods a
73、nd the avoidance of junk foods. 2 As they get older these good habits will stay with them. They will learn that these types of food will help them feel better and look better; give them more energy. Try to let them see that the food choices they are making will help them feel so much better. 3 I kno
74、w of one family that actually had the food pyramid on the wall of their kitchen and it helped their children pick out what foods they wanted. Everyone got a chance to decide what to eat, but they had to pick protein, vegetables and fruit. In addition, the mother had a book with recipes for healthy f
75、oods. 4 So children knew what healthy foods they should choose.Unlike today, when we grew up we played outside, rode our bikes, ran around, skated, and the list goes on and on. 5 So in addition to the above healthy eating choices, you need to plan some activities for your children today other than t
76、he television or video games.AWe didnt have TV or computer games.BHow are children helped to choose their food?CYou are helping them make smart informed choices.DThink what large meals do to your children at school.EWhat adults eat daily has a great effect on their children.FAll of the recipes had p
77、ictures of what the food looked like.GThe recipes for children should mainly include healthy foods.语篇解读：父母要从小培养孩子们选择好的食物的习惯。孩子们养成了好习惯，长大了这些好习惯仍然会发挥作用。1选DD项与本空前后的“Large meals”和“our children, at their desks”相呼应。2选C由本空后“As they get older these good habits will stay with them.”可知，前文讲你帮助你的孩子在食物上做出明智选择(培养好习惯)的好处。3选B该段主要通过一个具体事例表明如何培养孩子选择好的食物的习惯。B项可作为本段主旨。4选FF项承上启下，说明孩子们怎样知道选择吃什么。5选A前文讲过去的生活条件是多么差，A项符合这层意思。最后一句“the television or video games”也有提示。
