1、Unit5（人教新课标必修5）Unit 5综合测试题满分100分，考试时间90分钟.单项填空(每小题1分，共15分)1Her concert was_big success last night.I think it surely makes_difference for a new talent.A/；/ B. a；a C. a；the D. a；/答案：Ba big success“一个巨大的成功”。make a difference“有影响，重要”，是固定搭配。2It is the fact_he doesnt know his own birthday _ _surprises us
2、all.A. which; which B. that; thatC. which; that D. that; which答案：B考查强调句。句意：正是他不知道自己生日这个事实让我们感到惊讶。the fact后_he doesnt know his own birthday是一个同位语从句，不缺成分所以第一空应填that。第二空是强调句应填that。3I dont think Toms remarks are_；he is not supposed to say so.A. in place B. in peace C. in surprise D. in trouble答案：A考查介词短语
3、意义辨析。句意：我认为汤姆的言论不恰当，他不应该这么说。in place“适当，在适当的位置”；in peace“和平地”；in surprise“惊奇地”；in trouble“处于麻烦中”。4The number of people invited_fifty, but a number of them _absent for different reasons.A. were; was B. was; wasC. was; were D. were; were答案：Cthe number of修饰复数名词作主语时，谓语动词用单数形式。a number of修饰复数名词作主语时，谓语动词用
4、复数形式。5_no doubt_he can win the game this time.A. Theres; that B. Theres; whetherC. Its；that D. Its；whether答案：A考查名词性从句。句意：毫无疑问他能赢得这次比赛。Theres no doubt that.是固定句型，意为“毫无疑问”。6Be careful when you cross this very busy street. If not, you may_run down by a car.A. have B. get C. become D. turn答案：B考查动词的用法。句意
5、：当你过这条繁忙的街道时要小心。如果不小心，你可能被车撞倒。get run down表被动，意为“被车撞了”。have需用have sth./sb.done结构。7(2011湖州高二检测)Even though they were much younger, we_them as equals. A. handled B. treated C. managed D. received答案：B考查动词辨析。句意：尽管他们很年轻，但是我们平等地对待他们。handle“处理”；treat“对待，看待”，构成treat sb.as.结构；manage“努力完成”；receive“收到”；由句意可知B正
6、确。8Dont be_by products promising to make you lose weight quickly.A. taken off B. taken outC. taken away D. taken in答案：D考查动词短语辨析。句意：不要被承诺会使你快速减肥的产品所欺骗。take off“起飞，匆匆离去，脱下”；take out“取出”；take away“拿走，使离开，消除(病痛等)”；take in“收留，欺骗，吸收，包括，理解，领会”。9If a person develops the A/H1N1，it is_to get the victim to the
7、 doctor or hospital at once.A. serious B. anxiousC. vital D. previous答案：C考查词义辨析。serious“严重的”；anxious“不安的”；vital“至关重要的”；previous“在先的”。句意：如果一个人患上了甲型H1N1流感，马上送患者去看医生或去医院是至关重要的。只有C项符合题意。10Shelly had worked hard for her biology examination so that she could be sure of passing it at her first_.A. assistan
8、ce B. appetiteC. attempt D. aid答案：C考查名词辨析。句意：Shelly为了她的生物考试而努力学习，目的是她能一次通过考试。assistance“帮助”；appetite“食欲，胃口”；attempt“努力，尝试”；aid“帮助”，由句意可知C正确。11There are plenty of jobs_in the western part of the country.A. present B. availableC. precious D. convenient答案：B考查形容词词义辨析。句意：在这个国家的西部地区，有很多工作可找。available“可得到的
9、，可利用的”；present“出席的，现在的”；precious“宝贵的”；convenient“方便的”。12Johnson, would you like to marry Ann and love her all your life，_she is young or old, or poor or rich?Yes, I do.A. even if B. whetherC. no matter D. however答案：B考查状语从句连词。句意：约翰逊，你愿意娶安为妻，不论年轻或衰老，贫穷还是富足，都爱她一生一世吗？我愿意。whether.or.“不管还是”。13Although the
10、 entrance to the cave was very narrow, those visitors managed to_through it.A. press B. squeezeC. break D. cut答案：B考查动词辨析。squeeze与through连用表示“挤入；挤过；通过狭小的空间”。句意：尽管这个洞穴的入口很狭窄，那些游客还是设法挤了进去。而press“推，挤”，不与through连用；break through“突破”；cut through“穿透，穿过”。14(2011合肥高二检测)He decided not to say anything at the me
11、eting unless_.A. asking to B. to ask toC. asked to D. ask to答案：C句意：他决定在会上什么也不说，除非被要求。unless asked to相当于unless he was asked to say something。15Once the new rules are made，what matters much next is how they will be_to all the members of the club.A. devoted B. referredC. applied D. directed答案：Cbe appli
12、ed to在句中意为“应用于”。句意：一旦制定新规定，下一步比较重要的就是如何把它们应用于俱乐部的所有成员。be devoted to“专心于，致力于”；be referred to“被提到”；direct to“指示”。规律总结：以下短语中to为介词be/get/become/grow used to习惯于，适应于be accustomed to习惯于，适应于get down to 开始认真处理；着手stick to 坚持listen to 听look forward to 盼望.完形填空(每小题1分，共20分)We are always hearing about road acciden
13、ts, so when we are in the car we should try to drive carefully. But, how many of us take the same degree to care in our homes? A large _16_ will tell you the number of accidents that happened in the home is almost the same as those on the _17_.I dont pretend to be _18_，but Ive thought a lot about ho
14、w and why these accidents happen and what we can do to _19_ them.One of the most common and most dangerous_20_at home accidents is wrong and careless use _21_ electrical equipment. People will continue to use a loose plug or_22_ out a plug without first turning off the _23_.In spite of warning, one_
15、24_carry an electric heater into the bathroom when he is going to have a _25_. Sometimes one forgets to turn off the power_26_mending a lamp or something_27_. All of these can cause accidents. So the _28_about anything that works by electricity is：switch off before you _29_anything and dont pretend
16、you know when you actually _30_.If youve got_31_ in the house, its always the best to keep medicines of any kind out of their_32_.Otherwise, these medicines may be taken for candies or new kinds of drinks. When there are elder people living with you, you have to take particular _33_ in a number of w
17、ays in order to make them _34_and happy._35_， of course, is always a risk. So remember to turn it off after cooking. Also, dont forget to keep the children away from the cooker.Safety first may mean a little more time and care, but it may save you a lot of trouble.16A.family BfactoryChospital Dschoo
18、l答案：C根据上下文和文化背景可知这些数据一定是医院提供的，四个选项中也只有这项最合适，因此选C。17A.road BwayCpath Dstreet答案：A根据上文提到的road和下文进行对比，可知此句意思是在说在家里发生的事故和在马路上发生的交通事故一样多，因此选A。18A.an expert Ba doctorCan engineer Da scientist答案：A根据上下文可知作者是在谈论这些事发生的原因及怎样预防，因此选A。19A.pretend BpreventCprotest Dcomplete答案：B根据上下文可知作者谈到了发生的原因及如何阻止，也就是怎样预防，因此选B。20
19、A.reason BcausesCdifficuties Dproblem答案：B根据上下文和常识可知在家里发生事故的原因一般是使用电器错误或不小心，“造成的原因”用cause，因此选B。21A.at BofCfor Don答案：B本题考查介词的用法。根据上下文可知是使用电器，因此选of。22A.push BdragCpull Ddraw答案：C根据常识可知错误地使用电器包括使用松动的插头，或者是在拔出插头的时候忘记关闭电源，因此选C。23A.light BpowerCplug Delectricity答案：B根据常识可知是忘记关闭电源，因此选B。24A.may BcanCmust Dwill
20、答案：A根据常识可知尽管一再提醒，但是还会有人洗澡的时候拿着电热器进入浴室，这是一种可能性，因此选A。25A.cold BwarmCwash Dbath答案：D本题考查固定用法have a bath“洗澡”，因此选D。26A.after BwhenCas Dfor答案：B根据常识可知事故一般会发生在开着电源进行维修台灯或其他物品时，因此选B。27A.others BanotherCelse Dalso答案：C“其他的事物”，一般用something else，因此选C。28A.order BsuggestionCrule Drequirement答案：Crule表示：用电的规则。29A.tou
21、ch BfeelCcatch Dhold答案：A本题考查动词的词义辨析。根据句意：在你触摸电器前一定要关闭电源，因此选A。30A.dont BdoCdid Ddidnt答案：A根据上下文可知句意是：不要假装知道不知道的事情，因此选A。31A.patients BchildrenCfriends Dthe older答案：B根据下文可知句意是：如果有孩子在房子里，注意把各种药品放在孩子摸不到的地方，因此选B。32A.look BsightCknowing Dreach答案：D本题考查固定搭配，out of reach“够不到”，因此选D。33A.attention BmindCnotice Dc
22、are答案：D根据上下文可知是在谈论老人，意思是如果和老人住在一起，要特别注意关心他们，因此选D。34A.full BwarmCsafe Dangry答案：C根据上文可知关心老人的目的就是确保他们的安全和快乐，因此选C。35A.Gas BPollutionCFire DStove答案：A根据文章可知选A。.阅读理解(每小题2分，共40分)AFirst aid is emergency care for a victim of sudden illness or injury until more skillful medical treatment is available. It may s
23、ave a life or improve certain vital signs including pulse, temperature，a clear airway(气道), and breathing. In minor emergencies，first aid may prevent a victims condition from turning worse and provide relief from pain. First aid must be administered as quickly as possible. In the case of the Critical
24、ly injured, a few minutes can make a difference between complete recovery and loss of life.Firstaid measures depend upon a victims needs and the providers level of knowledge and skill. Knowing what not to do in an emergency is as important as knowing what to do. Improperly moving a person with a nec
25、k injury, for example，can lead to permanent spinal (脊柱的) injury and paralysis (瘫痪)Despite the variety of injuries possible, several principles of first aid apply to all emergencies. The first step is to call for professional medical help. The victim, if conscious, should be reassured that medical ai
26、d has been requested，and asked for permission to provide any first aid. Next，assess the scene, asking other people or the injured persons family or friends about details of the injury or illness，any care that may have already been given, and preexisting conditions such as diabetes (糖尿病) or heart tro
27、uble. The victim should be checked for a medical bracelet (手镯) or card that describes special medical conditions. Unless the accident scene becomes unsafe or the victim may suffer further injury，do not move the victim.First aid requires rapid assessment of victims to determine whether lifethreatenin
28、g conditions exist. One method for evaluating a victims condition is known by the acronym(首字母缩写词)ABC，which stands for：AAirway: Is it open and clear?BBreathing: Is the person breathing? Look, listen, and feel for breathing.CCirculation: Is there a pulse? Is the person bleeding externally? Check skin
29、color and temperature for additional indications of circulation problems.36First aid may bring about all the following results EXCEPT_.Asaving a victims lifeB. preventing a victims condition from getting worseCrelieving a victim from painDhelping a person avoid sudden illness or injury答案：D细节理解题。根据文章
30、第一句可知，first aid是救助突然发病或者受伤的人，而不能帮助避免突发的疾病和伤害。37Before we offer first aid to a victim，it is very important for us to_.A. make sure what to do and what not to doB. refer to all kinds of handbooks on first aidC. remove the ring or bracelet he may be wearingD. take him to a hospital at once答案：A细节理解题。根据文
31、章第二段可知，急救前必须掌握相关知识，明确该做什么不该做什么，否则反而会带来伤害，比如造成瘫痪等。38. When giving first aid to a victim, you should first of all_.A. remove him from the accident sceneB. turn him overC. call for professional medical helpD. examine him carefully答案：C细节理解题。根据第三段第二句话“The first step is to call for professional medical he
32、lp.”可知，首先是找医生，因此，C为正确答案。39You may assess a victims condition by all the following EXCEPT_.A. checking whether there is a pulseB. looking，listening and feeling for breathingC. replacing his medical bracelet or cardD. examining whether the airway is open and clear答案：C推理判断题。根据第三段中第四句话“Next, assess the
33、scene, asking other people or the injured persons family or friends.，do not move the victim.”可知，不是移走手镯或者卡片，而应该查看。BElectric Shocks Can Be FatalGovernment statistics recently showed that in the UK, more than 3,000 people a year experience electric shocks in their homes. A smaller number of people are
34、killed after contact with power lines outside the home. Electric shocks can cause a persons heart or breathing to stop, can also cause burns and are potentially fatal. It is essential for people to learn basic first aid techniques to deal with such emergencies.What to do? If you are the first person
35、 to reach someone who has had an electric shock, dont touch them! If they are still holding the appliance (家用电器) that has given them shock (e. g. a hair dryer), unplug it or turn off the power at its source. Under_no_circumstances_will_you_try_to_move_the_appliance_with_your_hand!If you cant turn of
36、f the power, use a piece of wood, like a broom handle or a chair, to separate the victim from the appliance or the power source. You may even be able to do this with a folded newspaper.The victim must remain lying down. If they are unconscious, victims should be placed on their side. But they should
37、 not be moved if there is a possibility of neck or spine injuries unless it is absolutely necessary. It is essential to maintain the victims body heat, so make sure you cover him or her with a blanket before you do anything else. If the victim is not breathing, apply mouthtomouth resuscitation (恢复呼吸
38、). Keep the victims head low until professional help arrives. If the electric shock has been caused by an external power line, the dangers to the victim and to anybody providing first aid are much greater.40What kind of passage is it?A. An advertisement.B. A horror story.C. A news report.D. First ai
39、d emergency advice.答案：D主旨大意题。根据文章第一段可知，本文主要的内容是：当人受到电击后，如何实施救助。所以我们可以推断出这是关于紧急救助的建议。41The underlined sentence, “Under no circumstances will you try to move the appliance with your hand！” implies that_.A. you should move the appliance that caused itB. you should pick up the appliance and turn off the
40、 electricityC. it is very dangerous to touch the appliance with your handsD. it is unnecessary to unplug the appliance with your hands答案：C推理判断题。根据文章第二段“If they are still holding the appliance that has given them shock(e.g. a hair dryer)，unplug it or turn off the power at its source.”和第三段“If you cant
41、 turn off the power，use a piece of wood.”可知正确选项为C。 42.When a person has got an electric shock, you should_ _.A. separate the victim from the appliance and let them sit upB. keep the victim warm and help them breathe againC. move the victim onto their side if they have got neck injuriesD. keep the vi
42、ctims head high until professional help arrives答案：B细节理解题。根据最后一段“The victim must remain lying down.”“Keep the victims head low until professional help arrives.”和“But they should not be moved if there is a possibility of neck or spine injuries unless it is absolutely necessary.”可知A、C、D错误。根据最后一段第四句话“It
43、 is essential to maintain the victims body heat，so make sure you cover him or her with a blanket before you do anything else.If the victim is not breathing, apply mouthtomouth resuscitation.”可知B正确。CFirst aid means the aid or the help that can be given to an injured person first, that is, before any
44、other help arrives. Nowadays there is usually a telephone not far away and the first we should do，if a serious accident happens，is to send someone to telephone for an ambulance. Sometimes quick action by us may save someones life.Shock. People often suffer from shock after receiving an injury，someti
45、mes even when the injury is a small one. The face turns grey，and the skin becomes damp and cold. They breathe quickly. They should be kept warm. Cover them with a blanket and give them a warm drink.Broken bones. Do not move the patient. Send for an ambulance at once. Treat for shock if necessary.Ble
46、eding. A little bleeding doesnt harm. It washes dirt from tile wound. But if the bleeding continues, try to stop it by placing a clean cloth firmly over the wound until the bleeding stops or helps arrive.Poison. A person who has taken poison should be taken to a hospital at once. With some poisons,
47、sleeping pills, for example，it is a good thing to make the patient throw up by pressing your fingers down his or her throat.Remember: When an accident happens, is to send someone to telephone for an ambulance at once. Keep the injured person warm and quiet. Give him or her plenty of air. Do not let
48、other people crowd around him or her. 43.How many common accidents are mentioned in this passage?A. Two. B. Three. C. Four. D. Five.答案：C细节理解题。由第二、三、四、五段的首句可得出答案。 44.If someone goes into shock after receiving an injury, youll find that_. A. the face turns grey B. the skin becomes damp and cold C. the
49、 patient breathes quickly D. all of the above答案：D细节理解题。由第二段第二句“The face turns grey，and the skin becomes damp and cold.They breathe quickly.”可知休克的表现为脸色变灰，皮肤潮湿发冷，呼吸急促。从而得出答案D。 45.Which of the following statements is WRONG according to the passage? A. First aid means to give an injured person the help
50、at once before the doctor comes. B. If an injured person goes into shock, we must try to keep them warm. C. Dont move the injured person if he or she has broken his or her legs. D. When a person has taken poison, we must make him or her sick.答案：D推理判断题。由第五段可知并非是让吞了任何毒药的人都呕吐，而只是对一部分毒药来说是可以的。46. The pa
51、ssage mainly tells us_.A. some advice on how to deal with common accidentsB. some facts about some common accidentsC. some examples of common accidentsD. something we must remember答案：A主旨大意题。非常明显本文就是告诉读者面对一些常见的事故，如休克、骨折、流血和中毒等，应采取怎样的急救措施。DWednesday is December first, World AIDS Day. This year, expert
52、s are reporting more signs of success in stopping the AIDS epidemic (流行病，传染病). The number of AIDSrelated deaths and the number of new infections are both decreasing.Michel Sidibe is the executive director of the Joint United Nations Program known as UNAIDS.MICHEL SIDIBE：“Today we can say with confid
53、ence and determination that we have broken the trajectory (轨道) of the AIDS spreading widely.”The latest UNAIDS report says new HIV infections have fallen almost twenty percent in the last ten years. And there has been a similar drop in the last five years in the number of AIDSrelated deaths.An estim
54、ated thirty three million people worldwide were living with HIV last year. Two and a half million were children. HIV is the virus that causes AIDS.Africa south of the Sahara has the most deaths and new infections. But many of those countries have made great progress.Worldwide estimates show that mor
55、e than two and a half million people became newly infected with HIV in 2009. At the same time, about one million eight hundred thousand people died from AIDSrelated sicknesses.Drug treatment to suppress the virus has expanded. One result has been fewer babies born infected by their mothers. Still, t
56、he report says ten million people are waiting for treatment.UNAIDS officials also say not enough is being spent for prevention. They say prevention efforts are responsible for much of the progress.More and more young people say they are following safer practices. Surveys find greater use of safe too
57、ls and people in many countries say they have fewer sexual partners.World Health Organization chief Margaret Chan called this years AIDS report encouraging. But she noted that the populations most at risk are also those who have the least access to services. These populations include sex workers, dr
58、ug users and homosexual men.47Whats the best title of the passage?A. Why is a person infected with HIVB. How to treat AIDSC. World AIDS Day, try to stop the AIDS epidemicD. Fewer babies born infected with HIV答案：C主旨大意题。根据文章首段可知本文主要讲述艾滋病日，世界致力于“瓦解”艾滋病病情流行趋势。48The underlined word “suppress” probably me
59、ans_.A. prevent B. infect C. spread D. start答案：A词义推断题。根据文章第八段“One result has been fewer babies born infected by their mothers.”可知由于用来阻止艾滋病病毒流行的药物治疗的普及，婴儿被他们的母亲所感染的较少了。可推断出suppress意思为“阻止，抑制”，故选A。49According to UNAIDS officials，_may play an important part in the progress.A. drug treatmentB. prevention
60、 effortsC. fewer sexual partnersD. services答案：B细节理解题。根据文章倒数第三段“They say prevention efforts are responsible for much of the progress.”可知正确选项为B。50Which kind of people may be infected with HIV?A. Babies. B. Mother.C. Drug users. D. Workers.答案：C细节理解题。根据文章最后一段“But she noted that the populations most at r
61、isk are also those who have the least access to services.These populations include sex workers，drug users and homosexual men.”可知C为正确选项。E A nosebleed can be frightening to get or see, but try to stay calm. Most nosebleeds look much worse than they really are. Almost all nosebleeds can be treated at h
62、ome.If you get a nosebleed, sit down and lean slightly forward. Keeping your head above your heart will make your nose bleed less. Lean forwards so that the blood will flow out of your nose instead of down the back of your throat. If you lean back, you may swallow the blood. This can make you uncomf
63、ortable.Use your thumb and index fingers to press together the soft part of your nose. Keep holding your nose until the bleeding stops. Dont let go for at least 5 minutes. If its still bleeding after that, hold it again for 10 minutes straight. You can also place an ice pack across the toe of your n
64、ose. Once the bleeding stops, dont do anything that may make it start again, such as bending over or blowing your nose.The most common causes of nosebleeds are dryness (often caused by indoor heat in the winter) and nose picking. These two things work togethernose picking occurs more often when the
65、liquid in the nose is dry. Other, less common causes include injuries, colds or cocaine use. Children may stick small objects up their nose. Old people may have infections or high blood pressure. The cause of nosebleeds is often unknown.Most nosebleeds arent serious. They occur in the front part of
66、the nose and stop in a few minutes.A few nosebleeds start in large vessels(血管) in the back of the nose, which can be dangerous. They may occur after an injury. This type of nosebleed is more common in the elderly and is often due to high blood pressure, daily aspirin use or bleeding disorders.51Acco
67、rding to the text, nosebleeds_.A. are not frightening to get or see B. are usually not serious and can be cured with the right method at homeC. must be treated by doctors in the hospitalD. arent dangerous at all答案：B推理判断题。由第一段最后一句可知B项正确，其余选项与文章不符。52Which of the following is NOT the right way to treat
68、 nosebleeds?A. Cool your nose with ice or other cold things.B. Press your nose slightly with your fingers.C. Lean backwards to slow down the flow of flood.D. Lean your head forwards, just above your chest.答案：C细节理解题。由第二段第一句可知，正确的方法是lean forwards，而不是lean backwards。53Whats the main idea of Paragraph 4?
69、A. Nosebleeds are caused by some diseases.B. Nosebleeds are caused by the dry weather.C. Your nose may be infected.D. The causes of nosebleed.答案：D主旨大意题。第四段主要讲述了流鼻血的原因。54When does nose picking often cause nosebleeds?A. When your nose feels dry.B. When you have a cold.C. When you have a headache.D. Wh
70、en the liquid in your nose is wet.答案：A细节理解题。根据第四段第二句可知鼻腔干燥常引起流鼻血。55Which of the following is TRUE according to the passage?A. It may be more dangerous if the back part of your nose bleeds.B. Nosebleeds can cause the disease related to blood pressure in older people.C. Nosebleeds occur to kids becaus
71、e of infections.D. Many nosebleeds are not as serious as they look.答案：A细节理解题。根据最后一段第一句可知鼻子后部的血管流血会更严重。.写作(25分)中暑是非常普遍的一种疾病，严重者可以危及生命。请根据图片内容并结合自己所了解的常识，写一篇介绍中暑以及如何对中暑患者进行急救的短文。词数：120150。参考词汇：中暑heatstroke；抬起elevate；保持呼吸通畅maintain an open airway_参考范文：Heatstroke is an illness caused by being in great h
72、eat for too long. The most important characteristic of heatstroke is the high body temperature.Care should be centered on lowering the body temperature as quickly as possible. Failure to do this may result in death. The right first aid measures for heatstroke are as follows：First, have the victim li
73、e down and elevate his or her feet. Be sure to maintain an open airway of the victim. Then，try to move the victim to a cool environment. After this, apply cold and wet towels to the victim and use a fan to lower his or her temperature. If possible, have the victim drink some water or something like
74、that. The last but most important step is to transport the victim to the hospital in time.附加题-【2014高考英语南京市、盐城市一模】书面表达（满分25分）请阅读下面背景材料，并根据问题，用英文写一篇短文向学校英文报投稿。In China, an online shopping festival falls on November 11 when millions of Chinese shoppers go to T and T. In 2012, Tmall and Taobao together
75、made 19.1 billion in sales on that day. However, in 2013, the shopping festival kicked off with an even stronger start sales hit 100 millionyuan55 seconds after midnight and reached 35 billion at the end of the day. This is just one of many companies that did business on that day.What does this mate
76、rial reflect？What is behind the phenomenon? And what is your comment or advice on it?注意：1.词数150左右。开头已给出，不计入总词数。2.作文中不得提及考生所在学校和本人姓名。3.参考词汇：理性的rationalWith the swift development of the Internet, 【参考范文】A possible version:With the swift development of the Internet, we can see online shopping has become
77、 a new trend in our daily life.There are several factors behind this phenomenon. First of all, it is very convenient for people to purchase what they want or like with the Internet easily accessible via computers or cellphones. Second, people shopping online have more choices of goods than they do i
78、n real shops and are able to save time as well. Third, the relatively low prices on the Internet also account for higher sales online.In my opinion, as the pace of life quickens, it is natural for people to choose online shopping to save time and energy. Butwhen we enjoy the convenience it brings us,we should be careful because sometimes the quality of goods cannot be guaranteed. Furthermore, wed better stay rational and just buy what we really need, otherwise it would cause a waste of money and resources. (150 words)