1、课时作业20Unit 20New Frontiers一、单元跟踪过关.单句语法填空1A few days ago, I was moving forward over a slope that seemed safe when suddenly without warning my world dropped out from under my skis.2There is no doubt that spending too much time surfing the Internet or watching TV contributes to nearsightedness, a seri
2、ous problem of young people in many countries.3The role change from husband to father, although difficult, doesnt seem so great as that from wife to mother.4Oh, Mum, just a few minutes.Hurry up, Harry. Or by the time you pack your belongings, the flight will_have_left (leave)!5The young man, who by
3、then had_gained (gain) admission to Peking University, determined to do some parttime jobs to gain more practical skills.6If every one of us donates a days pay to the Hope Project, then it will be hopeful.7He held on to a branch until we came to his rescue.8I was afraid the kids would give the whole
4、 thing away.9Of the two possibilities, the former seems more likely than the latter.10The manager doesnt permit smoking (smoke) in his office.单句改错1Never put off until tomorrow that can be done today.thatwhat2The experiment turned out great success, which we hadnt expected at all.great前加上a3Something
5、has gone wrong with my car and it is repaired at the garage right now.is_repaired中间加上being4Having run fast all the way, Bill was quite out breath when he turned up at the meeting.out后加上of5He is a teacher of rich experience, from him we have learned a lot over the year.himwhom6A new piece of software
6、 has recently been developed, making the Internet accessible the blind.accessible后加上to7I dont think the garment is worth mending it.去掉mending后的it8The WHO report shows that there are still large numbers of people died of starvation each year.dieddying9She said she has got through 80% of the task and
7、that the rest would be completed in a few days.hashad10The new President said she would be dedicated to protect the rights of the old, the sick and the homeless.protectprotecting.完成句子1他告诉我，他这次考得一团糟。He told me that he had made_a_mess_of the test.2我希望这次成功将激励你更加努力。I hope this success will inspire you_t
8、o_greater_efforts.3这次演出有众多观众，从孩子到老人。The show had a massive audience, ranging_from_children_to old people.4他说他与这件事没有关系。He said he had nothing_to_do_with the matter.5全世界的电视台由卫星相连。Television stations around the world are_linked_by satellite.二、高考模拟写作(2017河南联考)为了响应都市频道发出的“帮助优秀贫困学子”的号召，校学生会计划组织全体同学进行捐款捐物。
9、请你以校学生会的名义写一则通知，号召大家积极参与。活动具体事宜如下：1捐款金额不限，物资主要是衣服、棉被、学习用品等；2活动时间：4月17日上午8：0010：30；3活动地点：一号教学楼前；4所捐钱款和物资将会上交给河南省红十字会(Red Cross Society of China Henan Branch)。注意：词数100左右。Notice_答案：范文赏读NoticeIn order to help the excellent students who are very poor, the Students Union of our school is to launch a donat
10、ion programme in front of No.1 Teaching Building at 8：00 on the morning of April 17th.And it will last two and a half hours.You can make your donations in two ways. First, you can contribute money and any amount is welcome. Second, we will be more than happy to receive materials, such as clothes, qu
11、ilts and school supplies.All the donations will be given to the Red Cross Society of China Henan Branch.It is a virtue and tradition for us Chinese people to help those in need.Whats more, your help will make a great difference to them.So lets take action, please!Students UnionApril 10th大题巧练20Unit 2
12、0New FrontiersA卷一、阅读理解A(2016浙江卷)A scientist working at her lab bench and a sixmonthold baby playing with his food might seem to have little in common. After all, the scientist is engaged in serious research to uncover the very nature of the physical world, and the baby is, well, just playing. right?
13、 Perhaps, but some developmental psychologists(心理学家) have argued that this “play” is more like a scientific investigation than one might think.Take a closer look at the baby playing at the table. Each time the bowl of rice is pushed over the table edge, it falls to the groundand, in the process, it
14、brings out important evidence about how physical objects interact(相互作用): bowls of rice do not float in midair, but require support to remain stable. It is likely that babies are not born knowing this basic fact of the universe; nor are they ever clearly taught it. Instead, babies may form an underst
15、anding of object support through repeated experiments and then build on this knowledge to learn even more about how objects interact. Though their ranges and tools differ, the babys investigation and the scientists experiment appear to share the same aim(to learn about the natural world), overall ap
16、proach(gathering direct evidence from the world), and logic(are my observations what I expected？)Some psychologists suggest that young children learn about more than just the physical world in this waythat they investigate human psychology and the rules of language using similar means. For example,
17、it may only be through repeated experiments, evidence gathering, and finally overturning a theory, that a baby will come to accept the idea that other people can have different views and desires from what he or she has, for example, unlike the child, Mommy actually doesnt like Dove chocolate.Viewing
18、 childhood development as a scientific investigation throws light on how children learn, but it also offers an inspiring look at science and scientists. Why do young children and scientists seem to be so much alike? Psychologists have suggested that science as an effortthe desire to explore, explain
19、, and understand our worldis simply something that comes from our babyhood. Perhaps evolution(进化) provided human babies with curiosity and a natural drive to explain their worlds, and adult scientists simply make use of the same drive that served them as children. The same cognitive(认知的) systems tha
20、t make young children feel good about figuring something out may have been adopted by adult scientists. As some psychologists put it, “It is not that children are little scientists but that scientists are big children.”语篇解读本文探讨了科学家和六个月大的婴儿之间的关联。1. According to some developmental psychologists, _.A.
21、a babys play is nothing more than a gameB. scientific research into babies games is possibleC. the nature of babies play has been thoroughly investigatedD. a babys play is somehow similar to a scientists experiment答案与解析：D考查推理判断。从文章第一段的“but some developmental psychologists(心理学家)have argued that thisp
22、layis more like a scientific investigation than one might think”可知，一些发展心理学家认为，婴儿的游戏在某种程度上类似于科学家的实验，所以选D项。2We learn from Paragraph 2 that _.A. scientists and babies seem to observe the world differentlyB. scientists and babies often interact with each otherC. babies are born with the knowledge of obj
23、ect supportD. babies seem to collect evidence just as scientists do答案与解析：D考查推理判断。从第二段的“in the process，it brings out important evidence about. the babys investigation and the scientists experiment appear to share the same aim.”推断可知，婴儿收集证据的方式类似于科学家的，故选D项。3. Children may learn the rules of language by
24、_.A. exploring the physical worldB. investigating human psychologyC. repeating their own experimentsD. observing their parents behaviors答案与解析：C考查细节理解。从第三段的“they investigate human psychology and the rules of language using similar means. through repeated experiments.”可知，孩子们可能会通过不停地尝试他们自己的“实验”来习得语言规则，
25、故选C项。4. What is the main idea of the last paragraph?A. The world may be more clearly explained through childrens play.B. Studying babies play may lead to a better understanding of science.C. Children may have greater ability to figure out things than scientists.D. Ones drive for scientific research
26、may become stronger as he grows.答案与解析：B考查段落大意。从最后一段的内容尤其是“Viewing childhood development as a scientific investigation throws light on how children learn. look at science and scientists”可知，研究孩子们的游戏可能有助于更好地理解科学，所以B项正确。5. What is the authors tone when he discusses the connection between scientists rese
27、arch and babies play?A. Convincing. B. Confused.C. Confident. D. Cautious.答案与解析：D考查观点态度。通读全文特别是最后一段的“Perhaps evolution(进化) provided.”可知，作者的态度是很谨慎的，所以选D项。B(2017山东模拟)“Theres a mother in PICU(儿童重症监护病房) who wants to talk about a kit she received，” the nurse told me.“Something about it made her cry.”Ive
28、been a childlife specialist at the Cleveland Clinic Childrens Hospital since 2 000. I help families understand diagnoses and treatment plans and manage the ups and downs that come with caring for a sick child. Tough talks with parents are part of the job, which still makes me feel nervous.The kits t
29、he nurse was talking about were something I had recently introduced to the hospital: Comfort Kits from Guideposts. They were supposed to make a childs experience here easier, not upsetting.When I came across the kits at a conference, I fell in love with them. A treasure box of items designed not onl
30、y to entertain kids, but to comfort and inspire them. Theres a coloring book, a stress ball, a CD of relaxing music, a hairy star named Sparkle, a journal and much more. I really believed these kits would help kids. I wished I hadnt been mistaken.At the patients room in PICU I saw a little girl, sle
31、eping soundly, surrounded by tubes and machines. My eyes met her mothers. The kit was open on her lap and tears were running down her cheeks.“Im Shannon. I manage the Child Life Department，” I said. “Im sorry if the kit upset you. Its a new item.”The mother shook her head. “This has been one of the
32、worst days of my life. I felt so scared and alone. Then I was handed this box. I know its for my daughter, but its just the comfort I needed. I wanted to say a thankyou.”With that I knew Comfort Kits belonged here. Weve been using them for almost three years now. Each child whos admitted to the hosp
33、ital receives one. Every day I see kids coloring, journaling, playing with Sparkle.But this mom showed me Comfort Kits arent just for kids. The hope they bring, which_can_be_in_short_supply_in_hospitals_sometimes,_is felt by the whole family.语篇解读作为一名儿童医护专家，作者引进了一套工具，这套工具对患者及其家属产生了很大的影响。6. The author
34、 introduced Comfort Kits to the hospital to _.A. relax nurses B. benefit sick kidsC. comfort parents D. cure kids of diseases答案与解析：B考查细节理解。根据第三段的最后一句“They were supposed to make a childs experience here easier，not upsetting”可知，作者引进那套工具是为了帮助患病的孩子们在医院里好过些，而且确实让孩子们受益不少，这与文章最后两段呼应。7. Why was the girls mo
35、ther crying?A. She was moved to tears.B. She felt alone and scared.C. She couldnt wake her kid.D. She worried about her kids illness.答案与解析：A考查推理判断。根据倒数第三段的“I know its for my daughter, but its just the comfort I needed”可推知，文中所提到的母亲之所以哭是因为她被感动了。8. The closest meaning to “which can be in short supply i
36、n hospitals sometimes” is _.A. kits are in great need in hospitalsB. there may be lack of hope in hospitalsC. parents are often in low spirits in hospitalsD. medical supplies are not enough in hospitals答案与解析：B考查推理判断。short supplylack，表示供应不足或缺乏，再结合最后一段的最后一句可推知，此处表示医院中患者及其家庭可能缺乏希望。9. Whats the authors
37、attitude towards Comfort Kits?A. Disappointed. B. Excited.C. Nervous. D. Confident.答案与解析：D考查观点态度。根据第四段的最后两句“I really believed these kits would help kids.I wished I hadnt been mistaken”并结合最后一段的整体内容可推知，作者对Comfort Kits充满信心。二、完形填空Every morning we had a short break when a foodselling van(货车) would arrive
38、. I fell in love with a _10_ who was nice and happy, but I was very_11_ when talking to her, _12_ I begged my friends to get her name and number. They succeeded. I waited one day and then _13_ her asking her to the movies. Thankfully she agreed to go out on _14_. She seemed very _15_ about it and as
39、ked me to talk to her tomorrow. The next morning I was more nervous than ever as I waited for the _16_. I watched her van arriving slowly and then _17_. I waited _18_ the queue to be served, for a bit of privacy ! Soon it was my turn. I was stiff(僵直的) with _19_ and just stood there. Having delivered
40、 my food, she asked, “Is that _20_ ？” I said, “Yes, I think so”. She _21_ walked away into the van and drove away. I felt puzzled. Five minutes later I got a message, “Where were you? _22_ you never talked to me？” I replied, “I did, but you _23_ .” I waited for three hours and didnt get a single mes
41、sage. I was _24_. I wrote a very long message. About halfway through the message, _25_ walked past and asked what I was doing. I explained. He let me finish my message. As _26_ has it, my manager got a message the very second I pressed “SEND”. He pulled out his phone and showed me the message _27_ j
42、ust wrote. The whole company didnt stop _28_ for weeks because as it turned out my friends gave me my manager Jasons phone number instead of the salesgirls.Now I know everyone has to overcome their fears to get what they desire and that is the way it _29_be.语篇解读因为胆怯，我请朋友去要我暗恋的女孩的姓名和电话号码，但朋友捣鬼，把经理的电话
43、给了我，结果这件事成为公司里的笑料。10. Aclassmate Bmanager Csalesgirl Dworkmate答案与解析：C由下文可知，我爱上一位女售货员(salesgirl)。11. Anervous Bdistressed Cbusy Dhopeless答案与解析：A与自己所爱的女孩说话时很紧张(nervous)。distressed意为“情绪低落”。12. Afor BbutCand Dso答案与解析：D由于不敢与自己所爱的女孩说话，所以(so)请朋友帮助去要她的姓名和电话号码。13. Aawaited Bmessaged Cfaced Dtelephoned答案与解析：B
44、从下文我的经理被捉弄与我约会可知：我是用手机发短消息(messaged)同“她”交流，而没有直接打电话。14. Athe weekend Btomorrow Cthe next day Dtoday答案与解析：A从下文的短信要我明天与“她”说说话可知，答应周末(the weekend)去看电影。15. Aworried Bannoyed Centhusiastic Dcold答案与解析：C对方很热情(enthusiastic)，要我明天与“她”说说话。cold意为“冷淡的”。16. Afriends BfoodCanswer Dbreak答案与解析：D既然要说上话，自然是在上午二十分钟工作休息
45、吃点心的时间(break)。17. Amove forward Bmove backward Cpull away Dpull up答案与解析：D那餐车慢慢开过来后，停了下来。pull up意为“停车”；pull away意为“(把)开走，(使)离开”。18. Aat the back of Bat the side of Cin the front of Din the middle of答案与解析：A排队买饭时，我站在最后(at the back of)，为了有机会和她说一点私话。19. Afear Bdisappointment Chappiness Dsympathy答案与解析：A从最
46、后一段可知：人要学会克服恐惧(fear)。故此处应选择fear。20. Aanybody Beveryone Cyou Dsomebody答案与解析：B从下文可知：朋友捣鬼，把经理的电话给了我，那个女孩根本不知有约会这回事。因此我最后一个买饭时，她问大家(everyone)都买过了吗？才最合理。21. Areluctantly BunwillinglyCquickly Deagerly答案与解析：C那女孩根本不知道有约会这回事，所以当听到大家都买过饭时，她自然会迅速(quickly)离开。reluctantly意为“勉强地”；unwillingly意为“不情愿地”；eagerly意为“急切地，
47、渴望地”，侧重有急事要办，这里的语境只强调动作快，所以用quickly。22. AHow BHow come CWhat if DWhen答案与解析：Bhow come意为“怎么回事；怎么会呢”；what if意为“如果将会怎么样”，句意：你不跟我说话，是怎么回事？23. Acame in Bwalked outClooked away Dran off答案与解析：D我和你说了，可你却走了(ran off)。24. Acoldhearted Blighthearted Cheartbroken Dwarmhearted答案与解析：C三个小时都没有回短信，真的让我心碎(heartbroken)。
48、warmhearted意为“热心肠的”；lighthearted意为“心情愉快的”；coldhearted意为“冷淡无情的”。25. Amy manager Bmy friends Canother salesgirl Da workmate答案与解析：A从下文可知经理(my manager)也上当了。26. Amatter Bcoincidence Cincident Daccident答案与解析：B巧合的是：我发短信，经理的手机响了。coincidence意为“巧合”；incident意为“小事件”；accident意为“事故”；matter意为“麻烦事”。27. Ahe Bshe CI
49、Dthey答案与解析：C经理把手机上的短信给我看，正是我(I)刚才写的，到此时我俩才明白上当了。28. Aworking Breporting Cadvertising Dlaughing答案与解析：D这件事在公司里成为笑料(laughing)。29. Amight Bshould Cwould Dcould答案与解析：B句意：人们不得不克服恐惧去获得他们所渴望的东西，而且也必须(should)这样做。三、语法填空According to a recent survey, violence did exist in schools. Students showed their fear and
50、 parents and teachers also expressed their great concern about it. Experts hope the whole _30_(social) pay more attention to the mental health of adolescents.Nowadays, school violence is a hot issue，_31_ calls for our great concern. We should try every effort _32_ (prevent) violence happening at sch
51、ool for more and more students would drop out of school _33_ their personal safety could not _34_(guarantee). In fact, violence can be learned. Children learn violent behavior from adults or from_35_ they see on television or on_36_ Internet.If I meet with school violence, I will not answer violence
52、 _37_ violence, for it will result in _38_(much) fighting. I will tell my teachers or parents about it. I think they will help me deal with it well and they will protect me from the bad guys.All in all, every student should behave _39_ (he) and keep away from violence.30_31._32._33_34._35._36_37._38
53、._39_答案：语篇解读文章向我们介绍了作者对校园暴力的看法。30society考查名词。整个社会应该多多关注青少年的精神健康，填名词society。31which考查关系词。引导一个非限制性定语从句，所以要用which。32to prevent考查非谓语动词。不定式作目的状语。33if/as long as考查状语从句的引导词。如果人身安全得不到保障就会辍学，所以应该用引导条件状语从句的引导词。34be guaranteed考查语态。所给动词和其逻辑主语是动宾关系，所以要用被动语态。35what考查引导词用法。此处引导一个宾语从句，并且在从句中作宾语，所以要用what。36the考查冠词用法
54、。on the Internet是个固定搭配，应该用定冠词the。37with考查介词。with表示方式，意思是“用”。38more考查形容词的比较等级。由语境可知，以暴制暴只会产生更多的暴力。39himself考查反身代词。behave oneself意为“表现良好，行为良好”。B卷一、阅读理解A(2017江西模拟)Here is a letter from the Los Angeles Lakers icon Kobe Bryant on The Players Tribune website on November 30th.“.This season is all I have le
55、ft to give. My heart can take the pounding(重击). My mind can handle the grind(苦差事) but my body knows its time to say goodbye.”“Kobe Bryant is one of the greatest players in the history of our game. Whether competing in the finals or hoisting jump shots after midnight in an empty gym, Kobe has an unco
56、nditional love for the game. I join Kobes millions of fans around the world in congratulating him on an outstanding NBA career and thank him for so many thrilling memories.”Adam Silver, NBA commissioner(总裁)“Were all sad. This era of Lakers basketball has been one of the most fun, exciting prosperous
57、 eras we could imagine. Were in full support of him. But its still very sad.”Jeanie Buss, Lakers president“I know his purpose is to finish this season and play. Its always sad when greatness decides to hang it up. I thought he had at least another year in him.”Byron Scott, Lakers coach, and Bryants
58、teammate during the 19961997 season“He pushed me to be better more than any player Ive faced. Kobe is the greatest competitor I have ever faced. I am glad he has found peace. I dont know if well see another one like him.”Shane Battier of the Miami Heat“Hard to believe kobebryant is finally going to
59、hang it up. One of the NBAs great champions. Enjoy the rest of this season, my friend.”Scottie Pippen, retired NBA AllStar语篇解读本文描述了各方对洛杉矶湖人队球星科比退役一事的反应。1. What can we learn from Kobe Bryants letter?A. He has lost passion for basketball.B. Hell return to basketball court soon.C. Hell finish this seas
60、on before he retires.D. Hell retire immediately after the letter.答案与解析：C考查细节理解。根据第二段的“This season is all I have left to give”和第五段湖人队的教练Byron Scott所说的话“I know his purpose is to finish this season and play.Its always sad when greatness decides to hang it up”可知，科比会打完这季比赛再退役，故选C。2. According to Byron Sc
61、ott, _.A. Kobe has an unconditional love for basketballB. Kobe is supposed to play at least for another yearC. Lakers team has played very well this yearD. it is difficult to find another player like Kobe答案与解析：B考查细节理解。根据第五段Byron Scott所说的“I thought he had at least another year in him”可知，教练认为科比还会再打一年。
62、3. Where can we most probably read the comments?A. From an Internet page.B. In a newspaper.C. In a sports magazine.D. In a TV program.答案与解析：A考查推理判断。根据第一段“Here is a letter from the Los Angeles Lakers icon Kobe Bryant on The Players Tribune website on November 30th”可推知，本文最可能选自一个网页。B(2017东北质检)Its a fam
63、iliar feeling. Your friend has made the team for Saturdays big game, and you take certain pleasure in telling him you cant be there to watch him play. You smile, but that voice in you asks, why him and not you?Envy is a fault that we like to keep secret. It raises its ugly head when we focus on what
64、 we want but dont possess now, or we may even wish for and take pleasure in someone losing it. Feelings of unfairness are part of being human, but when you focus on them, you can never get out of your dark emotions. And that makes you feel bad.So is there a solution? Is there anything you can do to
65、stop the most ungenerous emotions?Well, why not turn envy on its head, and make it the encouragement you need for selfimprovement? The best weapon against envy is not to compete where you cant shine, but to do your absolute best where you can.Start by making peace with yourself, and accept the gifts
66、 which make you unique. Make an agreement with yourself to be the best you can be. Then find out exactly the circumstances and qualities in others that start your envy. Is it someones singing voice, their work promotion, or their new car? Envy shows us the things wed like to have, so make a plan to
67、earn whats important to you. Sign up for a night class. Start a training program. Give up a treat or two, and start saving for what you want.And aim for real pleasure in the achievements and good fortune of others. Cheer on your friend when he scores that goal. Enjoy your best friends wedding day. T
68、hen go out and do something special, and make you wonderfully proud of yourself.语篇解读本文是一篇说明文。忌妒会给人带来不良情绪。本文作者提出应对忌妒的最好方法就是将自己的强项发挥到极致，为自己感到骄傲，同时也为别人取得的成功而快乐。4. The first paragraph is meant to _.A. give examplesB. tell the main ideaC. introduce the topicD. ask the question答案与解析：C考查推理判断。作者在文章第一段举出一个让人
69、感觉忌妒的例子是为了引出话题，即如何应对忌妒给人带来的不良影响，因此选C。5. When envy appears, we actually _.A. ignore its existenceB. have feelings of unfairnessC. share it with friendsD. lose something of our own答案与解析：B考查细节理解。根据第二段中的“Feelings of unfairness are part of being human”可知，忌妒感出现时，我们确实感到不公平，觉得为什么别人可以拥有，自己却没有，因此选B。6. What is
70、 the best way to help stop envy?A. Developing your own strength to the full.B. Competing for what you are not good at.C. Forgetting about the things you cant get.D. Trying to get anything that makes you envy.答案与解析：A考查细节理解。根据第四段的“The best weapon against envy is not to compete where you cant shine，but
71、 to do your absolute best where you can”可知，停止忌妒的最好方法就是将自己的强项发挥到极致，因此选A。7. What is the authors attitude towards people with envy?A. Subjective. B. Objective.C. Unconcerned. D. Worried.答案与解析：B考查作者态度。作者客观地介绍了忌妒给人带来的消极影响，并提出了应对忌妒、使人过得快乐的有效方法，因此选择B。subjective“主观的”；objective“客观的”；unconcerned“不关心的”；worried
72、“担心的”。二、七选五Public Speaking TrainingGet a coach_8_， so get help. Since there are about a billion companies out there all ready to offer you public speaking training and courses, here are some things to look for when deciding the training thats right for you.Focus on positivesAny training you do to be
73、come more effective at public speaking should always focus on the positive aspects of what you already do well. Nothing can hurt confidence more than being told that you arent doing well. _9_， so good public speaking training should develop those instead of telling you what you shouldnt do._10_If yo
74、u find a public speaking course that looks as though its going to give you lots of dos and donts, walk away ! Your brain is so full of what youre going to be talking about. _11_. As far as were concerned, there are basically no hard and fast rules about public speaking. Your audience can be your fri
75、ends.You are a special person not a cloneMost importantly, good public speaking training should treat you as a special one, with your own personal habits. _12_. Your training course should help you bring out your personality, not try to turn you into someone youre not.A. You arent like anybody elseB
76、. You already do lots of things wellC. Turn your back on too many rulesD. Check the rules about dos and dontsE. Whatever the presentation, public speaking is toughF. The one thing you dont want is for them to fall asleepG. So trying to force a whole set of rules into it will just make things worse答案
77、：语篇解读该文论述了进行公开演讲的训练要点。8E从七个选项中可以看出，大部分选项都是讲的细节性提示，只有E项是讲公共演讲是项艰难的任务，可以用来引起下文的话题。9B把前一句中的doing well，以及第一句中的what you already do well作为依据，结合剩余选项中的内容，可以推测，只有B项符合空格处缺失的文意，表示一种心理暗示：我已经在很多事情上做得很好了，符合该段小标题中positive一词的含意。10C本段下第一句说到，如果你发现一次公共演讲就像是给你规定了一堆该做的事和不该做的事，那么赶紧离开吧。由此可以推测，该段是暗示读者不要被这些规则束缚。故C项正确。11G结合上
78、一题解析，剩余选项中只有G项和D项与规则一词相关，而D项说法显然与本段文意相悖，所以G项正确。12A本段小标题说到，你是一个特别的人。剩余选项中只有A项能与之对应。三、短文改错Hello, Jack. Im so glad to have received your letter.Your letter reach me yesterday. It said in your letter that you were punishing for using cell phones, that puzzled you.It is no doubt that cell phones can brin
79、g us much convenient. We can keep in touch with friends and families wherever they are. Beside, the cell phone is a way to fun. However, there are some problems with using cell phones. The ring of phones can disturb teachers and student in class. It has been proved that often using cell phones does
80、harm health. And another problem is that some students can spend too much the time and money on cell phones, thus resulting in poor scores in study.As a student, you should concentrate on study. It is right for your school to prevent you from use cell phones.答案：Hello, Jack. Im so glad to have receiv
81、ed your letter.Your letter me yesterday. It said in your letter that you were for using cell phones, puzzled you. is no doubt that cell phones can bring us much . We can keep in touch with friends and families wherever they are. ， the cell phone is a way to fun. However, there are some problems with
82、 using cell phones. The ring of phones can disturb teachers and in class. It has been proved that often using cell phones does harm health. And another problem is that some students can spend too much time and money on cell phones, thus resulting in poor scores in study.As a student, you should concentrate on study. It is right for your school to prevent you from cell phones.