2015-2016学年高中英语 Unit 2 Healthy eating综合微评(含答案解析）

Unit 2 Healthy eating
满分：120分　时间：90分钟
第　Ⅰ　卷
第一部分　阅读理解(共两节，满分40分)
第一节　(共15小题；每小题2分，满分30分)
阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
A
What will you do if you can't eat everything bought in the canteen？Most of us would simply throw away any leftover food.According to a survey，what students waste every year could feed over 10 million people.
But canteen waste is merely the tip of the iceberg.According to Xinhua News Agency，the food wasted by Chinese people is about 50 million tons of grain every year，which could feed 200 million people.If that wasn't bad enough already，numbers around the world are even uglier(触目惊心)．
Food waste，which has become a global issue，serves as a mirror that reflects various cultural and social issues in different countries.In the West，for instance，consumerism，the belief that it's good to use a lot of goods and services，is often to blame for food waste.China，in turn，features its own eating culture.Chinese people are well known for being hospitable and generous.Many even feel that they lose face if their guests have eaten all the food.But rather than tradition，huge public spending on government banquets is also fuelling food waste.On campus，a generation of single children is less aware of the food waste issue.Students nowadays are well protected by their families and hardly have any concept of how much toil(辛苦)others go through in order to provide them with the food they eat.
To reduce food waste is a big task，and it needs time.There are 925 million hungry people in the world.They don't have enough food to eat.And farmers work very hard to grow the crops.So we shouldn't waste our food.It is also important that everyone thinks about how they can do their bit to reduce food waste.Recently a campaign against food waste launched online in China might make you think twice about being so wasteful.
文章围绕“浪费”展开了论述，从学校食品、粮食浪费到社会的浪费，文章最后引出了中国网民开展的“光盘”行动。
1.How does the author introduce the topic？
A.By giving an example.
B.By making comparison.
C.By providing data.
D.By raising a question.
答案：D　解析：篇章结构题。文章的引题用的是“What will you do if you can't eat everything bought in the canteen？”，故选D。
2.What can we learn from the passage？
A.Students' waste is only a small part for the whole society.
B.Most of Chinese people hate food waste at present.
C.Students can never realize the serious food waste situation.
D.Different cultures lead to the issue of food waste.
答案：A　解析：细节理解题。根据文章第二段的首句“But canteen waste is merely the tip of the iceberg.”可知“学生的浪费只是冰山一角”。
3.According to the passage，food waste________.
A.has caused worldwide concern
B.will probably be solved in the near future
C.is hardly realized by students
D.is worse on government banquets in China
答案：C　解析：细节理解题。根据倒数第二段倒数第二句“On campus，a generation of single children is less aware of the food waste issue.”可知“在校园里，独生子女的一代很少能意识到食品浪费的问题”。
4.What's the purpose of the passage？
A.To show how much food is being wasted.
B.To indicate students' food waste is serious.
C.To suggest banning food waste in law.
D.To call on all readers to value our food.
答案：D　解析：推理判断题。文章先提出浪费的问题，然后指出浪费的严重性，最后引出了旨在推动节约粮食的“光盘”行动，号召所有人倡导节约，反对浪费。
B
Healthy knees aren't the main consideration in choosing high heels，but new research says chunky heels are just as bad for the knees as spindly stilettos(细高跟鞋)．“It takes a long time to feel the effects of knee osteoarthritis(骨关节炎)—and once you do it，it is too late，”said Dr.Casey Kerrigan，leading researcher of the study and associate professor at Harvard Medical School's department of physical medicine.“I compare it to smoking—one cigarette is not painful，but over a lifetime it is.Wide heeled shoes feel comfortable，so women wear them all day long，”Kerrigan said.“They are better for your feet than stiletto heels，but just as bad for your knees.”
In the study，researchers had twenty women wear two pairs of shoes with three inch heels，one with a narrow heel and the other with a thick one.The scientists compared how much pressure was put on the women's knees by both types of shoes.The women also walked barefoot to test normal pressure.The scientists found that both types of shoes applied equal amounts of pressure to the pared with walking barefoot，the heels increased pressure on the inside of the knee by 26 percent.Increased pressure on the knee eventually leads to arthritis，experts say.
The idea that high heels are bad for your health isn't new—scientists have warned women for years that they contribute to problems ranging from corns to hammer toes，tendonitis，knee pain，sprained(扭伤)ankles and back problems.But in 1998，Kerrigan and a team of Harvard researchers were the first to link high heels and knee osteoarthritis，a painful joint disease that destroys cartilage(软骨)surrounding the knee.The first study looked only at stiletto heels，and Kerrigan said she wanted to study the chunky high heeled shoes she noticed many women wearing.“This study confirms what we all intuitively(直觉地)know that high heeled shoes of any kind are not good for our health，”said Dr.Glem Pfeffer，a San Francisco doctor and member of the American Academy of Orthopedic Surgeons who was not connected to the study.
本文主要讲述了高跟鞋对膝盖健康的影响的研究、调查结论。
5.We learn from the passage that women choose chunky heels because________.
A.they want to walk comfortably
B.chunky heeled shoes are cheaper than stiletto heeled pairs
C.chunky heels do less harm to knees
D.chunky heels are not painful at all
答案：A　解析：细节理解题。根据第一段中的“Wide heeled shoes feel comfortable，so women wear them all day long”可知妇女选择粗高跟鞋是因为粗高跟鞋穿着舒服，A项与此意思相符。
6.The study mentioned in the second paragraph found that________.
A.pressure on the foot is caused by high heels
B.the pressure is abnormal while walking barefoot
C.arthritis is always caused by pressure on the knees
D.both types of shoes have the same harm to the knees
答案：D　解析：推理判断题。从第二段中的“The scientists found that both types of shoes applied equal amounts of pressure to the knees”可知，两种高跟鞋给膝关节带来的压力是等量的，所以它们对膝关节的伤害是一样的。
7.The best title for the passage may be________.
A.Taking Healthy Knees into Consideration
B.High Heels Do Harm to Knees
C.Chunky Heels and Stiletto Heels
D.When Wearing High Heels
答案：B　解析：主旨大意题。本文主要论述了鞋跟粗厚的高跟鞋和鞋跟细高的高跟鞋一样，都对膝关节有损害。所以B选项“高跟鞋伤害膝关节”是最佳选项。
C
How fit are your teeth？Are you lazy about brushing them？Never fear：An inventor is on the case.An electric toothbrush senses how long and how well you brush，and it lets you track your performance on your phone.
The Kolibree toothbrush was exhibited at the International Consumer Electronics Show in Las Vegas this week.It senses how it is moved and can send the information to an Android phone or iPhone via a Bluetooth wireless connection.
The toothbrush will be able to teach you to brush right(Don't forget the insides of the teeth！)and make sure you're brushing long enough.“It's kind of like having a dentist actually watch your brushing on a day to day basis，”says Thomas Serval，the French inventor.
The toothbrush will also be able to talk to other applications on your phone，so developers could，for instance，create a game controlled by your toothbrush.You could score points for beating monsters among your teeth.“We try to make it smart but also fun，”Serval says.
Serval says he was inspired by his experience as a father.He would come home from work and ask his kids if they had brushed their teeth.They said“yes，”but Serval would find their toothbrush heads dry.He decided he needed a brush that really told him how well his children brushed.
The company says the Kolibree will go on sale this summer，for $99 to $199，depending on features.The U．S.is the first target market.
Serval says that one day，it'll be possible to replace the brush on the handle with a brushing unit that also has a camera.The camera can even examine holes in your teeth while you brush.
这是一篇科普文。一位法国科学家发明的电子牙刷可以通过蓝牙无线连接器把你刷牙的信息传到手机上，甚至可以检测到牙上的洞。
8.Which is one of the features of the Kolibree toothbrush？
A.It can sense how users brush their teeth.
B.It can track users' school performance.
C.It can detect users' fear of seeing a dentist.
D.It can help users find their phones.
答案：A　解析：细节理解题。从第一段中的“An electric toothbrush senses how long and how well you brush”可知答案。
9.What can we learn from Serval's words in Paragraph 3？
A.You will find it enjoyable to see a dentist.
B.You should see your dentist on a day to day basis.
C.You can brush with the Kolibree as if guided by a dentist.
D.You'd like a dentist to watch you brush your teeth every day.
答案：C　解析：推理判断题。从第三段中的“It's kind of like having a dentist actually watch your brushing on a day to day basis”可知，你可以用这种牙刷，就好像每天在牙医的指导下刷牙。
10.Which of the following might make the Kolibree toothbrush fun？
A.It can be used to update mobile phones.
B.It can be used to play mobile phone games.
C.It can send messages to other users.
D.It can talk to its developers.
答案：B　解析：细节理解题。从第四段中的“so developers could，for instance，create a game controlled by your toothbrush...your teeth”可知答案。
11.What can we learn about the future development of the Kolibree？
A.The brush handle will be removed.
B.A mobile phone will be built into it.
C.It will be used to fill holes in teeth.
D.It will be able to check users' teeth.
答案：D　解析：推理判断题。根据最后一段中的“The camera can even examine holes in your teeth while you brush”可知答案。
D
Many Chinese kids，known as“left behind”children，hardly ever see their parents，because their parents are migrant workers.
Li Ling,11，is a left behind child.Her parents have been working in Zhejiang for 10 years，while she lives with her grandparents in Guangdong.She was reunited with her parents last Spring Festival.As the number of migrant workers in China increases，the number of left behind children is rising fast.Li is one of the 61.02 million left behind children under 17.They account for 37.7 percent of rural children and 21.88 percent of all Chinese children.
The large number of left behind children has already become a social issue.If left unsolved，it will cause serious problems，Wang Zhenyao，director of the China Philanthropy Research Institute，told China Daily.The education level of adults supervising(监管)these children is generally not that high.They can only take care of the children's personal safety and daily living，being unable to care for their educational and spiritual needs.Meanwhile，the absence of parental support will make some left behind children lack self confidence.They may be slower in physical and emotional growth than their peers.Others may even become“problem youths”．
To solve this problem，the government is taking action.For instance,30 provinces and cities have allowed certain children to attend school and take the college entrance exam in the city where their parents are.However，Wang suggested that the country do more，such as making policies encouraging migrant workers to workers to work in their hometowns.He also said that a well balanced child welfare system is needed.“These children are the future of the nation，so they deserve our loving care and protection，”Wang said.
全国17岁以下留守儿童人数众多，他们缺少教育和父母关爱，导致他们缺乏自信、生理心理成长缓慢，有些成为问题少年。虽然各地采取了一些措施，但还有许多问题有待解决。
12.Left behind kids hardly see their parents because________.
A．they are poor and in rural areas
B.they are brought up by their grandparents
C.their parents are making a living in other cities
D.their parents don't go back home on Spring Festival
答案：C　解析：细节理解题。由第一段可知，留守儿童很难见到父母是因为他们的父母是农民工，农民工专指在外地城市谋生的农民。故选择C项。
13.Which of the following is true according to the passage？
A.Li Ling hasn't seen her parents for about 10 years.
B.Left behind children have become problem youths.
C.There are 61.02 million left behind children in China.
D.Much remains to be done to settle the left behind kids issue.
答案：D　解析：细节理解题。由第二段She was reunited with her parents last Spring Festival一句可知，Li Ling去年春节与父母团聚了，排除A项；第三段最后一句Others may even become“problem youths”表明只是部分留守儿童成为问题少年，排除B项；第二段Li is one of the 61.02 million left behind children under 17一句说明17岁以下留守儿童有6 100多万。C项说的是全部留守儿童有6 100多万，排除。最后一段Wang suggested that the country do more说明国家还有许多可做。故选择D项。
14.The purpose of the passage is________.
A.to criticize the migrant workers who leave their children at home
B.to focus on the present situation of the left behind children
C.to worry about the present situation of left behind children
D.to call on the government to educate the migrant workers
答案：B　解析：主旨大意题。全文先介绍了17岁以下留守儿童目前的数量。接下来讨论了留守儿童因为缺乏教育和父母关爱而存在的问题，最后说明一些地方采取的措施以及有待解决的问题。A项文章无依据；C、D两项只涉及文章一个方面，不能涵盖全文。故选择B项。
15.In which column of a newspaper can we most probably find this passage？
A.Education. B．Society.
C.Entertainment. D．Employment.
答案：B　解析：推理判断题。留守儿童是一个社会问题。本文主要讨论的不是教育问题，排除A项；不是娱乐问题。也不是教育问题，排除C、D两项。故B项正确。
第二节(共5小题；每小题2分，满分10分)
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。选项中有两项为多余选项。
For many people today，reading is no longer relaxation.To keep up their work they must read letters，reports，trade publications，interoffice communications etc.，a never ending flood of words.In getting a job，the ability to read and comprehend quickly can mean the difference between success and failure.__16__Most of us develop poor reading habits at an early age，and never get over them.
Taken individually，words have little meaning until they are strung together into phrases，sentences and paragraphs.__17__He laboriously reads one word at a time，often regressing(退回)to reread words or passages.Regression is a common bad habit in reading.
__18__It moves a bar(or curtain)down the page at a predetermined speed.The bar is set at a slightly faster rate than the reader finds comfortable，in order to“stretch”him.The accelerator(加速器)forces the reader to read fast，making word by word reading practically impossible.__19__But when you learn to read ideas and concepts，you will not only read faster，but your comprehension will improve.Many people have found their reading skill drastically improved after some training.Take Charlce，a business manager，for instance，his reading rate was a reasonably good—172 words a minute before the training，now it is an excellent 280 words a minute.__20__
A.A good reader obtains good reading skills.
B.Yet the fact is that most of us are poor readers.
C.To overcome the bad habit，some reading clinics use a device called an accelerator.
D.At first comprehension is sacrificed for speed.
E.Unfortunately，however，the untrained reader does not read groups of words.
F.He is delighted that he can get through a lot more reading material in a short period of time.
G.To his n has got a rise.
　答案：16.B　17.E　18.C　19.D　20.F
第二部分　英语知识运用(共两节，满分45分)
第一节　完形填空(共20小题；每小题1.5分，满分30分)
阅读下面短文，从短文后每题所给的四个选项(A，B，C和D)中，选出可以填入空白处的最佳选项。
I used to hate being called upon in class mainly because I didn't like attention drawn to myself.And__21__assigned(指定)a seat by the teacher，otherwise I always__22__to sit at the back of the classroom.
All this__23__after I joined a sports team.It began when a teacher suggested I try out for the basketball team.At first I thought it was a crazy__24__，because I didn't have a good sense of balance，nor did I have the __25__to keep pace with the others on the team and they would tease me.But for the teacher who kept insisting on my“__26__for it”，I wouldn't have decided to give it a try.
Getting up the courage to go to the tryouts was only the __27__of it！When I first started__28__the practice sessions，I didn't even know the rules of the game，much__29__what I was doing.Sometimes I'd get__30__and take a shot in the wrong direction，which made me feel really stupid.__31__，I wasn't the only one“new”at the game，so I decided to__32__on learning the game，do my best at each practice session，and not be too hard on myself for the things I didn't __33__“Just yet”．
I practised and practised.Soon I knew the__34__and the “moves”．Being part of a team was fun and motivating.Very soon the competitive__35__in me was winning over my lack of confidence.With time，I learned how to play and made friends in the__36__—friends who respected my efforts to work hard and be a team player.I never had so much fun！
With my__37__self confidence comes more praise from teachers and classmates.I have gone from“__38__”in the back of the classroom and not wanting to call attention to myself，__39__raising my hand—even when I sometimes wasn't 100 percent__40__I had the right answer.Now I have more self confidence in myself.
21.A.as B．until
C.unless D．though
答案：C　解析：and提示前后句是并列关系，前一句说“我”不喜欢被别人关注，“我”一定总是坐在无人关注的角落，除非老师指派座位。故选unless。
22.A.hoped B．agreed
C.meant D．chose
答案：D　解析：前文提到除非是老师指定坐在哪儿，故此处指“我”总是选择坐在教室的后面。故选D项。
23.A.continued B．changed
C.settled D．started
答案：B　解析：前文提到自己不喜欢被注意，后文提到所有的这一切在加入了运动队后改变了。故选B项。
24.A.idea B．plan
C.belief D．saying
答案：A　解析：因为“我”平衡感差一些，又跟不上别人的步伐，因此“我”认为参加篮球队这个想法很疯狂。idea“主意，想法”；plan“计划”；belief“信念，信仰”；saying“格言”。
25.A.right B．chance
C.ability D．patience
答案：C　解析：与其他人保持同步是一种“能力”的体现，故选ability。right“权利”；chance“机会”；patience“耐心”。
26.A.going B．looking
C.cheering D．applying
答案：A　解析：it指代“我”参加篮球队这件事情，那么对这件事情老师坚持的就是让“我”参加。go for“参加”。
27.A.point B．half
C.rest D．basis
答案：B　解析：鼓起勇气去选拔赛仅仅是成功的一半。point“点”；rest“剩余部分”；basis“基础”；A、C、D三项均不符合句意，故选B项。
28.A.enjoying B．preparing
C.attending D．watching
答案：C　解析：当“我”开始参加训练的时候，“我”甚至都不懂运动规则。故选C项。attend“参加”，enjoy“享受，喜欢”；prepare“准备”。
29.A.less B．later
C.worse D．further
答案：A　解析：前文提到“我”不知道比赛的规则，这里说，“我”更不知道自己在做什么。less“更少”，是和知道比赛规则进行比较。
30.A.committed B．motivated
C.embarrassed D．confused
答案：D　解析：有时候，“我”都糊涂地把球投进自己的篮筐。confused“迷惑的，困惑的”；committed“作出承诺的”；motivated“有动机的”；embarrassed“尴尬的”。
31.A.Interestingly B．Fortunately
C.Obviously D．Hopefully
答案：B　解析：根据后文“‘我’不是唯一的一个新手”可知作者对此感到很庆幸，故选B项。fortunately“幸运地”；interestingly“有趣地”；obviously“明显地”；hopefully“有希望地”。
32.A.focus B．act
C.rely D．try
答案：A　解析：“我”决定集中精力训练。focus on“集中注意力于”；act on“对……起作用；按照……行动”；try on“试穿”；rely on“依靠”。
33.A.want B．do
C.support D．know
答案：D　解析：前文提到要尽自己的努力练习。此处应用know表示“知道”之意。
34.A.steps B．orders
C.rules D．games
答案：C　解析：前文提到“我”连规则都不知道，于是发奋练球的结果就是知道了规则并且已经知道了篮球中的“移动”。
35.A.role B．part
C.mind D．value
答案：B　解析：前文提到成为队中的一员的确是一件乐事，给人以激励，故此处指的是不久之后战胜“我”内心深处的不自信成了最有挑战性的部分。故选B项。role“角色”；part“部分”；mind“思维，想法”；value“价值”。
36.A.process B．operation
C.movement D．situation
答案：A　解析：在“我”学习打球的过程中，“我”也交了一些朋友。本句中破折号的作用是解释说明，意思是，知道尊重“我”努力的朋友一定是看到“我”成长的朋友。process“过程”；operation“工作，运转”；movement“运动”；situation“形势，情形”。
37.A.expressed B．improved
C.preserved D．recognized
答案：B　解析：根据来自老师和同学的赞扬，可知“我”的自信心在不断增长，故此处用improved表示“提高，增长”之意。express“表达”；preserve“保存”；recognize“辨认出”。
38.A.dreaming B．playing
C.relaxing D．hiding
答案：D　解析：由前文除非是老师指定座位，“我”总是选择坐在教室的后面，可知“我”原来是“藏”在教室的后面不想被人注意，故选D项。
39.A.by B．for
C.with D．to
答案：D　解析：前文提到自从加入一个运动队之后，所有的这一切都改变了，本段总结说明“我”的变化，由原来的躲在教室后面不想被别人注意转到了举手回答问题。from...to“从……到……”，故选D项。
40.A.lucky B．happy
C.sure D．satisfied
答案：C　解析：句意：甚至在“我”对正确答案不是有百分之百的把握的时候。本句继续说明“我”的自信在不断增长。sure“有把握的”；lucky“幸运的”；happy“高兴的”；satisfied“满意的”。
第　Ⅱ　卷
第二部分　英语知识运用(共两节，满分45分)
第二节　语法填空(共10小题；每小题1.5分，满分15分)
阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
(Tang Ying is sent by the Department of Foreign Languages，Fudan University to study in Rutgers University.Dr.Wilson introduces Tang Ying to her academic advisor，Prof.David Marker.)
Wilson：David，this is Tang Ying，whom I told you about yesterday.Please take good care of her and help her with the registration procedures.Now，I'm leaving her__41__your hands.
Marker：Yes，sir！Please take__42__ seat，Miss Tang.__43__do you think of the weather here？
Tang：I like it very much.It's just like the weather in Hangzhou at this time of the year.
Marker：You'd better get yourself__44__(prepare)for the winter.It's cold here.What will be your major，Miss Tang？
Tang：Education.
Marker：You got your Bachelor of Arts in English at Fudan University and now you want to get your Master's in Education，right？
Tang：Right.
Marker：Okay，you'll need 36 credit hours(学分时)，of which 15 must be from the English Department and 15 from the Education Department.For the__45__(remain)six credit hours，you can__46__ write a thesis(论文)or take two more elective courses.
Tang：This is rather__47__(confuse)to me now，but I'm sure I'll straighten it out.
Marker：Now let's plan your courses.Since you've had English Literature，you should take American Literature and the American Novel.
Tang：Okay，I'll follow your__48__(advise)．
Marker：Do you have any particular problem？
Tang：How many credits for each course？
Marker：Three.You also should take two three credit courses in the Education Department.That'll give you 12 hours altogether，__49__ is the minimum for a full time student.
Tang：Yes.Thank you.
Marker：Now you are all set.I hope you'll enjoy__50__ here at Rutgers.
Tang：Sure I will.
Marker：Good bye.
Tang：Bye！
答案：41.in　42.your/a　43.What　44.prepared
45.remaining　46.either　47.confusing　48.advice
49.which　50.yourself
第三部分　写作(共两节，满分35分)
第一节　短文改错(共10小题；每小题1分，满分10分)
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词。
2.只允许修改10处，多者(从第11处起)不计分。
As everyone knows，the global financial crisis resulted from the United States have caused a great effect in the development of the global economy.What shall we do facing the global challenge？
I quite agree with what the Hu Jintao said at the 7th ASEM summit.Nothing is more important than confidence.Only if we have confidence and hold together we get through a variety of difficulty.For example，after the terrible earthquake in Sichuan Province，all the Chinese held together and bravely fight against the disaster with great confidence，what won the admiration of the world.
In my opinion，facing with the present global financial crisis，we should keep calm and not be in a panic.Believe in both our Party and country，then we will certainly live through the crisis.
答案：
As everyone knows，the global financial crisis resulted from the United States caused a great effect the development of the global economy.What shall we do facing the global challenge？
I quite agree with what Hu Jintao said at the 7th ASEM summit.Nothing is more important than confidence.Only if we have confidence and hold together we get through a variety of .For example，after the terrible earthquake in Sichuan Province，all the Chinese held together and bravely against the disaster with great confidence， won the admiration of the world.
In my opinion， with the present global financial crisis，we should keep calm and not be in a panic.Believe in both our Party and country， we will certainly live through the crisis.
第二节　书面表达(满分25分)
假设你是李华。最近，你校学生会组织开展了“构建低碳校园”活动。请你围绕“节约资源，低碳生活”的主题，根据以下提示，用英语写一封倡议书。
1.日常出行时怎样减少碳排放；
2.在餐厅就餐时怎样节约粮食；
3.在寝室和教室如何节约水、电。
注意：
1.词数：不少于100词；
2.倡议书的开头和结尾已给出，但不计入总词数；
3.可适当增加情节，以使行文连贯。
Dear fellow students，
Our school advocates that we should build a low carbon campus in order to protect the earth.'
______________________________________________________________________________________________________________________
Dear fellow students，let's start right now and spare no effort to do every little thing we can from now on！
Li Hua
参考范文：
Dear_fellow_students，
Our_school_advocates_that_we_should_build_a_low carbon_campus_in_order_to_protect_the_earth.I think it is everyone's duty to work hard to achieve this goal.Here is what I think we should do：First of all，we should walk or ride bikes instead of riding in cars or school buses to reduce the amount of pollution.Secondly，when we eat the food in the school cafeteria，we should eat up what we buy and not waste the food.Thirdly，it is important for us to save electricity and water.We should not leave the lights on in the daytime or leave water running after washing.Instead，we should turn off lights as soon as we leave the classroom and dormitories.
In a word，if we can make small changes in our way of life，we can make a big difference to the earth！
Dear_fellow_students，let's_start_right_now_and_spare_no_ effort_to_do_every_little_thing_we_can_from_now_on！
Li_Hua