下载文档原格式
河北单招考试第二大类试题模拟试卷十二答案第一题单选（从 A、B、C、D四个选项中选出可以填入空白处的最佳选项。
共40分，每小题2分）1. Do you know ________ girl in red? She is my sister. [单选题] *a an the(正确答案)/2. Thanks for inviting _______ to your birthday party, Nancy. I really enjoyed it. [单选题] *her him you me(正确答案)3. I’m going to the _______ to buy some books. [单选题] *museum school post office book store(正确答案)答案解析：buy books买书，所以是book store4. _______ money do they need for the trip? [单选题] *How What How many How much(正确答案)答案解析：money应该用 how much提问5. _______ is a sports center in front of the building. [单选题] *There(正确答案)This That D. Those 答案解析：there be 结构6. You _______. Don’t talk on the phone. [单选题] *will drive are driving(正确答案)were driving have driven答案解析：你正在开车，别打电话。
现在进行时 be doing（are driving）7. ---Which do you like, tea _______ coffee?--- Coffee, please. [单选题] *and or(正确答案)with but答案解析：or 表示选择8. I _______ follow you. Would you please repeat it? [单选题] *can’t(正确答案)mustn’t needn’t shouldn’t9. --- How often do you go to the health club?---_______ a week. [单选题] *Two Two times Twice(正确答案)Two time答案解析：表示次数，一周两次，用序数词twice10. Every time Sally leaves the room, she always remembers to_______ the light. [单选题] *turn off(正确答案)turn down put off put down答案解析：词义辨析，turn off 关，turn down 拒绝，put off 推迟，put down 放下11. --- Long time no see!---I’ve just returned. I_______ to Beijing for a meeting last month. [单选题] *am sent was sent(正确答案)am sending was sending答案解析：last month上个月，过去时，用was；我被送到北京，被动用sent。
上海--中考模拟考试--英语试卷（12）B.Listen to the dialogue and choose the best answer to the question you hear7.A)A reporter.B)A TV host.C)An air hostess.D)A lawyer.8.A)Classical music.B)Jazz.C)Country music.D)Rock.9.A)￥110.B)￥100.C)￥90.D)￥80.10.A)Anything he liked.B)Jacket and tie.C)Jacket and hat.D)Suit and tie.11.A)In an old house.B)In a little shop.C)On a train.D)On a boat.12.A)He will be waiting for a package.B)He will do some online shopping.C)He will deliver jeans to customers.D)He has ordered some food online.13.A)The man is saving money for a new car.B)The man spends a lot of money on gas.C)The man is driving his parents'car.D)Repairing the car costs the man a lot.14.A)Susan can sell her present house.B)It's necessary for Susan to buy a new house.C)Susan can't afford a new house.D)It's not wise of Susan to buy another house.C.Listen to the passage and tell whether the following statements are true or false15.The story happened on a windy and rainy day.16.Two children came to the house to sell newspapers.17.The speaker invited them in and served them milk and bread.18.They kept talking to the speaker while she was doing housework.19.The speaker failed to get rid of the dirty marks on the carpet.20.The story tells us that we should be thankful for everything we have.D.Listen to the passage and complete the following sentences21.Over a hundred people died in a plane crash_________________last night.22.A British couple are missing,only_________________after they started climbing Mount Everest.23.There are_________________in many parts of India and32people died yesterday.24.A report shows that for every one hour of commuting,30minutes_________________on traffic jams in Beijing.25.Joe Hall's_________________won him over13,000,000pounds last night.Part2Phonetics,Grammar and vocabularyII.Choose the best answer.(20’)26.Which of the following words is pronounced as/waild/?A worldB wideC wildD wind27.Mike has only driven to the pub to show_____his new car–he usually walks.A ofB offC aroundD with28.When_____is dressed the same,worrying about what you look like isn’t so important.A someoneB anyoneC no oneD everyone29.We use an online bill-paying service,and we almost everything____credit card.A onB byC forD at30.Any way to improve this‘welcome letter’–I want to make sure it sounds____.A friendlyB carefullyC gentlyD politely31._____earthquake recorded in the20th century occurred in Chile in1960.A LargeB LargerC LargestD The largest32.I wonder whether buying an electric car____a good idea.A beB amC isD are33.I don’t mind_____back home.I feel like some fresh air.A walkB walkingC to walkD to walking34.The sign says“Passengers____show their tickets and passports.”A mustB mayC canD should35.I____30pages of the book so far,but I hope to finish it by next week.A readB am readingC have readD will read36.It was a terrible journey,____we got there safely in the end.A andB orC soD but37.We’ll have to cancel the school sports meeting___it snows tonight.A ifB althoughC unlessD since38.When we____home last night,we saw a strange object in the sky.A driveB droveC were drivingD had driven39.The police required the traveler____for his luggage.A checkB to checkC checkingD checked40._____can we help victims after a natural disaster?A WhoB HowC WhereD When41.Please____fruits and vegetables in a basin!A washB washingC to washD washed42.Half of the Beijing’s private cars____off the roads due to heavy smog on Friday.A orderB are orderedC orderedD were ordered43.____amazing the stage play War Horse is!A WhatB What aC What anD How44.–More underground lines should be built in our city!--_____A I’m glad to hear thatB Not exactlyC I couldn’t agree moreD I’m on your side45.–I’m sorry I’m late–the traffic was terrible.-____.The traffic situation is getting worse these days.A That’s OKB You’re welcomeC I don’t think soD Please go ahead.plete the following passage with the words or phrases in the box.Each word or phrase can only be used once.(8’)A sourceB on averageC plasticD fixedE examinedThe US public uses about50billion water bottles a year and most of those46bottles are not recycled,according to Elizabeth Royte’s book Bottlemanid:How Water Went on Sale and Why We Bought It.More than$100billion is spent every year on bottled water in the U.S.in many developing countries where there isn’t a safe47of tap water,bottled water is the only choice.In the US,tap water is controlled by the government and often48for dangerous substances(物质). Each American drinks79litres of bottled water per year49.The bottled water industry is so successful that it has outpaced milk,coffee,and juice in the number of gallons of drinks sold–putting it behind only beer and soda.A no longerB completelyC competeD given upE encourageThough the sale of bottled water is still on the rise.Certain policy makers have taken steps to reduce it and50people to drink tap water.In September2009,the Australian city of Bundanoon became the first city in the world to51stop bottled water from being sold in stores,building water fountains instead.Among the cities in America that have taken action are San Francisco and Seattle,which52buy water for city use,and Chicago which adds a five-cent tax on each bottle.Several restaurants in those cities have also53bottled water for tap water.Other cities are also considering taking action.plete the sentences with the given words in their proper forms.(8’)54.With my saving,I bought_________a mobile phone for his birthday.(he)55.Our______have been polluted by waste from factories.(river)56.The wheelchair gives him the_______to go out on his own.(free)57.Black shoes go very well with jeans,and are much_________to keep clean.(easy)58.One soldier was killed and three others were_______when their tank was hit by a rocket.(wound)59.The modern fashion in education is to let the child_____everything.(decision)60.Hundreds of houses were______damaged in the hurricane.(heavy)61.The growing problem of_______cats and dogs has caused much trouble in the town.(home)V.Rewrite the following sentences as required.(14’)62.You have to pay to park here.(改为否定句)You_____________to pay to park here63.Henry Ford invented the world’s first assembly line in1913.(划线提问)_______________Henry Ford invent the world’s first assembly line?64.They created a Children’s Fund to provide money for those who are ill.(保持句意)They_______________a Children’s Fund to provide money for those who are ill.65.The newspapers will publish the results of the survey.(改为被动语态)The results of the survey will____________in the newspapers.66.We cannot drink salt water.we cannot take a shower with it,either.(保持句意)We can_____drink salt water____take a shower with it.67.“Have you collected any materials about earthquakes?”asked Ms Ward.(改为宾语从句)Ms Ward asked me_____I_____collected any materials about earthquakes.68.a blanket,covered,Tom’s,with,legs,were(连词成句)____________________________________________.Part Three Reading and WritingVI.Reading comprehensionA.Choose the best answerOnce upon a time if we wanted to make a phone call or wait for someone to contact us,we had to sit at home or at our desks.There were public phones in the street of course,but it could be hard to find one that was working and there were often long queues to use them.And of course you had to bring a lot of coins to pay for the calls.So people didn't phone their friends as often.Mobile phones,these small pieces of electronic equipment which allow us to talk with friends and family while we are on the move,have greatly changed the way we live.Before the age of the mobile phone,our loved ones would sit around worried sick if we were late coming home.There were no quick calls to tell mum that there would be additional guests coming for dinner. We would have to depend on notes left on fridges or desks to communicate messages.But mobile phones have also had a negative effect and what people don't seem to realize is that we've lost something very valuable:our privacy.Now our friends and family can contact us wherever and whenever they want to.We can never get away from them.The way people communicate with each other is totally different now.It's difficult to have a conversation face-to-face with a friend without being disturbed every couple of minutes by the ring of their phones,,most people don't see anything wrong in having a long conversation on their mobile phone while forgetting all about the person sitting opposite.It seems the art of real conversation may be dying.Of course,people could leave their mobile phones at home or even switch them off but no one ever does that.Why not?Because the worrying thing is we can't live without our phones.We've become communication addicts,unable to spend even a few minutes out of contact,in case we miss something 'important'.69.What does the underlined sentence tell us?A)No all-day public phone service was provided in the street.B)Public phones were in poor condition and not always available.C)Public phones were everywhere but they were always in use.D)You could always see people repairing the public phones.70.What's the writer's point about using telephones before the invention of mobile phones?A)Using a telephone was expensive.B)Phone calls were much shorter.C)People made fewer phone calls.D)People relied on notes a lot.71.What does the writer think about life before mobile phones?A)Life was less convenient.B)People were more punctual.C)Things were more relaxed.D)Everyone managed very well.72.What's the writer's main argument against mobile phones?A)They have damaged relationships.B)We give out too much information.C)They are harmful to our body and mind.D)It's impossible to escape from them.73.Which word best describes how the writer feels about the use of mobile phones.'?A)Disappointed.B)Satisfied.C)Worried.D)Surprised.74.What's the writer's main purpose in writing this article?A)To inform people about means of communication in the past.B)To show disadvantages of the way people communicate today.C)To advise readers to stop using the mobile phone.D)To compare different types of phone conversation.B.Choose the words or expressions and complete the passageThe International Climate Champions(ICC)project began in2007.It gives young people of school age a chance to speak publicly on climate change and to call on people to take action to reduce its75. Each country involved selects three teenagers to be Climate Champions,who take part in local and international activities.Climate Champion Irene Sanna lived on the Italian island of Sardinia.Irene is interested in solar energy, and76believes that Sardinia should use the waves around its coast to produce electricity.'We must make our plans to save our coast,which still has no pollution.We must protect the animals,birds and fish in danger from global warming.And we must recycle.'Chinese student Ding Yinghan is the Beijing Climate Champion.Ding feels it is not77to say that just one country-his own-is causing climate change.He says the air pollution that leads to global warming comes from many parts of the world,including poorer countries that are now growing more quickly.He believes the only way to78the situation getting even worse is for rich and poor countriesto work together.Sophia Angelis,a junior student in California,is a US Champion.She's against young people's generation lack of interest in politics and feels they need to discuss the problems that really matter to their generation.Sophia strongly believes that climate change is an important issue for her generation.For her,79 in the way teenagers behave are an important way of influencing choices made by parents.In2008,the Climate Champion attended the International Conference of Environment Ministers in the Japanese city of Kobe.80,30countries are involved in the ICC,and more countries are expected to join soon.75.A)support B)amount C)costs D)effects76.A)hardly B)also C)never D)only77.A)proud B)common C)fair D)important78.A)protect B)improve C)prevent D)explain79.A)changes B)problems C)characters D)advantages80.A)After all B)At present C)For example D)What's moreC.Read the passage and fill in the blanks with proper wordsSomeone sent me a group e-mail the other day.One of those that end with:send this to10friends (I)liked the story and it really got me thinking.Here's the story from the e-mail:Recently I overheard a father and a daughter in their last moments together at the a81.They had announced the departure.Standing near the security gate,they hugged and the father said,'I love you,and I wish you enough.' They kissed and the daughter left.The father walked over to the window where I was seated.I tried to leave him some privacy,but I could not keep m82from asking:'When you were saying good-bye,I heard you say,'I wish you enough.'May I ask what that means?' He began to smile.'That's a wish that is p83on from generation to generation.My parents used to say it to everyone.'He paused a moment and looked up as if trying to remember it in d84,and he smiled even more.'When we said,'I wish you enough,'we were wanting the other person to have a life filled with just enough good things to carry them on.'T85,slowly turning toward me,he shared the following as if he were reciting it from memory.I wish you enough sun to keep your attitude b86no matter how gray the day may appear.I wish you enough rain to appreciate the sun even more.I wish you enough happiness to keep your spirit alive and everlasting.I wish you enough pain so that even the s87of joys in life may appear bigger.I wish you enough gain to satisfy your wanting.I wish you enough loss to appreciate all that you possess.I wish you enough hellos to get you through the final good-bye.D.Read what Claire did and answer the questionsMy stay in the rainforestLast year,I left my job and went to Borneo to work without pay in the rainforest.So many people have said to me,'I would love to do something like that,'and I say,'If you want to,just do it.'They always reply,'l can't.'But,if you really want to do it,there are ways to make it happen.After three day's training,I started work on an environmental project with a group of young people. The accommodation was very basic and we had to build our own place to sleep.This consisted of a simple bed,a cloth roof and a net to keep insects(昆虫)out.It was never dangerous there,but it was very challenging(挑战的).There were things that we didn't think we would manage to do,but we did.I had some of my worst moments there,but also some of my best -it made me feel alive.I didn't miss my home comforts as much as I'd thought I might.We had food,water, somewhere to stay,about three sets of clothes and really good conversation.We were in the most beautiful place and we had things to keep us busy.We didn't need any more.One of the teenagers said,'Before we came here,it was really important to me what clothes I wore and who my friends were.I was always thinking about shoes,but really none of that matters.Here,people accept me for who I am,what I believe and think,not for what kind of clothes I've got.'When she said that, it summed it up for me.88.Did Claire get any money from the work in Borneo?89.What did Claire do before she started work on an environmental project?90.How was Claire's'bedroom'in the rainforest?91.What did the teenager care about before she came to Borneo?92.How did Claire feel about the experience of living in the rainforest?93.What do you think might be the worst moments Claire had during her stay in the rainforest?VII.Writing94.In at least60words,write a letter to your headmaster suggesting rules you think should be changed or improved.Support your opinions with facts or examples.(给校长写一封至少60个词的信，向他建议几条需要改变或改进的学校规则，并辅以事实或例子。
2020年山东省新高考数学模拟试卷（十二）一、单项选择题（本题共8小题，每小题5分，共40分.在每小题给出的四个选项中，只有一项是符合题目要求的）1．已知全集U＝R，集合A＝{x||x﹣2|≥2}，B＝{x|x≤2}，则（∁U A）∩B＝（）A．{x|0≤x≤2}B．{x|0＜x≤2}C．{x|﹣2≤x≤2}D．{x|﹣2＜x≤2}2．设a，b均为不等于1的正实数，则“a＞b＞1”是“log b2＞log a2”的（）A．充分不必要条件B．必要不充分条件C．充分必要条件D．既不充分也不必要条件3．元代数学家朱世杰编著的《算法启蒙》中记载了有关数列的计算问题：“今有竹七节，下两节容米四升，上两节容米二升，各节欲均容，问逐节各容几升？”其大意为：现有一根七节的竹子，最下面两节可装米四升，最上面两节可装米二升，如果竹子装米量逐节等量减少，问竹子各节各装米多少升？以此计算，第四节竹子的装米量为（）A．1升B ．升C ．升D ．升4．已知函数f（x）＝x﹣4+，x∈（0，4），当x＝a时，f（x）取得最小值b，则函数g（x）＝a|x+b|的图象为（）A ．B ．C ．D ．5．如图，在下列四个正方体中，P，R，Q，M，N，G，H为所在棱的中点，则在这四个正方体中，阴影平面与PRQ所在平面平行的是（）A ．B ．C ．D ．6．如图，棱长为2的正方体ABCD﹣A1B1C1D1中，点E、F分别为AB、A1B1的中点，则三棱锥F ﹣ECD的外接球体积为（）A ．B ．C ．D ．7．已知双曲线，过原点的直线与双曲线交于A，B两点，以AB为直径的圆恰好过双曲线的右焦点C，若△ABC的面积为2a2，则双曲线的渐近线方程为（）A ．B ．C ．D ．8．已知函数，，则方程f（g（x））＝a的实根个数最多为（）A．6B．7C．8D．9二、多项选择题（本题共4小题，每小题5分，共20分.在每小题给出的选项中，有多项符合题目要求.全部选对的得5分，部分选对的得3分，有选错的得0分）9．（5分）已知a，b均为正实数，若log a b+log b a ＝，a b＝b a ，则＝（）A ．B ．C ．D．210．（5分）对于定义域为D的函数f（x），若存在区间[m，n]⊆D，同时满足下列条件：①f（x）在[m，n]上是单调的：②当定义域是[m，n]时，f（x）的值域也是[m，n]，则称[m，n]为该函数的“和谐区间”．下列函数存在“和谐区间”的是（）A．f（x）＝x3B．f（x）＝3C．f（x）＝e x﹣1D．f（x）＝lnx+211．（5分）在△ABC中，内角A，B，C的对边分别是a，b，c，则（）A．若2cos C（a cos B+b cos A）＝c，则C ＝B．若2cos C（a cos B+b cos A）＝c，则C ＝C．若边BC 上的高为a ，则当+取得最大值时，A ＝D．若边BC 上的高为a ，则当+取得最大值时，A ＝12．（5分）已知数列{a n}是等差数列，前n项和为S n，满足a1+5a3＝S8，下列选项正确的有（）A．a10＝0B．S10最小C．S7＝S12 D．S20＝0三、填空题（本题共4小题，每小题5分，共20分）13．（5分）（2x+y）（x﹣2y）5展开式中x3y3的系数为．14．（5分）已知x＞0，y＞0，是2x 与4y 的等比中项，则的最小值．15．（5分）已知圆x2+y2+4x﹣5＝0的弦AB的中点为（﹣1，1），直线AB交x轴于点P，则的值为．16．（5分）已知角θ的顶点为坐标原点，始边为x轴的非负半轴，若P（﹣，m）是角θ终边上的一点，且sinθ＝，n＝tan（θ+），则m＝，n＝．四、解答题（本题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤）17．（10分）在△ABC中，内角A，B，C所对的边分别为a，b，c，函数f（x）＝cos x（sin x﹣cos x）+，将f（x）的图象向左平移个单位得到函数y＝g（x）的图象，且g（）＝，c＝．（1）求C；（2）若3（sin B﹣sin C）2＝3sin2A﹣8sin B sin C，求cos（A﹣C）．18．（12分）设数列{a n}的前n项和为S n，若．（1）求数列{a n}的通项公式；（2）设b n＝（n+3）a n，求数列{b n}的前n项和T n．19．（12分）已知五边形ABECD由一个直角梯形ABCD与一个等边三角形BCE构成，如图1所示，AB⊥BC，AB∥CD，且AB＝2CD．将梯形ABCD沿着BC折起，如图2所示，且AB⊥平面BEC．（Ⅰ）求证：平面ABE⊥平面ADE；（Ⅱ）若AB＝BC，求二面角A﹣DE﹣B的余弦值．20．（12分）抛物线C：y＝x2，直线l的斜率为2．（Ⅰ）若l与C相切，求直线l的方程；（Ⅱ）若l与C相交于A，B，线段AB的中垂线交C于P，Q ，求的取值范围．21．（12分）某读书协会共有1200人，现收集了该协会20名成员每周的课外阅读时间（分钟），其中某一周的数据记录如下：75 60 35 100 90 50 85 170 65 70 125 75 70 85 155 110 75 130 80 100对这20个数据按组距30进行分组，并统计整理，绘制了如下尚不完整的统计图表：阅读时间分组统计表（设阅读时间为x分钟）组别时间分组频数男性人数女性人数A30≤x＜60211B60≤x＜901046C90≤x＜120m a1D120≤x＜150211E150≤x＜180n2b（I）写出m，n的值，请估计该读书小组中人均每周的课外阅读时长，以及该读书小组中一周阅读时长不少于90分钟的人数；（II）该读书协会拟发展新成员5人，记新成员中每周阅读时长在[60，90）之间的人数为ξ，以上述统计数据为参考，求ξ的分布列和数学期望；（Ⅲ）完成下面的2x2列联表，并回答能否有90%的把握认为“每周至少阅读120分钟与性别有关”？每周阅读时间不少于120分钟每周阅读时间少于120分钟合计男女合计附：K2＝P（K20.1500.100 0.0500.0250.010 0.005 0.001≥k0）k0 2.072 2.706 3.841 5.024 6.6357.87910.828 22．（12分）已知函数f（x）＝x﹣alnx+a﹣1（a∈R）．（Ⅰ）讨论f（x）的单调性；（Ⅱ）若x∈[e a，+∞）时，f（x）≥0恒成立，求实数a的取值范围．2020年山东省新高考数学模拟试卷（十二）参考答案与试题解析一、单项选择题（本题共8小题，每小题5分，共40分.在每小题给出的四个选项中，只有一项是符合题目要求的）1．【分析】可以求出集合A，然后进行交集和补集的运算即可．【解答】解：∵A＝{x|x≤0或x≥4}，B＝{x|x≤2}，U＝R，∴∁U A＝{x|0＜x＜4}，（∁U A）∩B＝{x|0＜x≤2}．故选：B．【点评】本题考查了描述法的定义，绝对值不等式的解法，交集和补集的运算，全集的定义，考查了计算能力，属于基础题．2．【分析】根据充分条件和必要条件的定义结合不等式的解法进行判断即可．【解答】解：a，b均为不等于1的正实数，①若“a＞b＞1”时由对数函数的性质可得：一象限底大图低，相同自变量为2时，底大函数值小，可得log b2＞log a2成立．②若：“log b2＞log a2”有①若a，b均大于1，由log b2＞log a2，知必有a＞b＞1；②若a，b均大于0小于1，依题意，必有0＜b＜a＜1；③若log a2＜log b2＜0，则必有0＜b＜a＜1；故：“log b2＞log a2”不能推出a＞b＞1；综上所述由充要条件的定义知，A正确．故选：A．【点评】本题主要考查充分条件和必要条件的判断，根据不等式的解法是解决本题的关键．3．【分析】设竹子自下而上的各节容米量分别为a1，a2，…，a7，由题意得a1+a2+a6+a7＝6，由等差数列的性质能求出第四节竹子的装米量．【解答】解：设竹子自下而上的各节容米量分别为a1，a2，…，a7，由题意得a1+a2+a6+a7＝6，由等差数列的性质得：a1+a7＝2a4＝6，解得第四节竹子的装米量为a4＝（升）．故选：B．【点评】本题考查第四节竹子的装米量的求法，考查等差数列的性质等基础知识，考查运算求解能力，是基础题．4．【分析】先根据基本不等式求出a，b的值，再结合指数函数的性质及函数的图象的平移可求【解答】解：∵x∈（0，4），∴x+1＞1∴f（x）＝x﹣4+＝x +1+﹣5≥2﹣5＝1，当且仅当x＝2时取等号，此时函数有最小值1∴a＝2，b＝1，此时g（x）＝2|x+1|＝，此函数可以看成函数y ＝的图象向左平移1个单位结合指数函数的图象及选项可知A正确故选：A．【点评】本题主要考察了基本不等式在求解函数的最值中的应用，指数函数的图象及函数的平移的应用是解答本题的关键5．【分析】利用平面的基本性质作出经过P、Q、R三点的平面，然后判断选项的正误即可．【解答】解：由题意可知经过P、Q、R三点的平面如图：红色线的图形，可知N在经过P、Q、R三点的平面上，所以B、C错误；MC1与QE是相交直线，所以A不正确；故选：D．【点评】本题考查平面与平面平行的判断定理的应用，平面的基本性质的应用，是基本知识的考查．6．【分析】首先确定球心的位置，进一步利用勾股定理的应用求出求的半径，进一步求出球的体积．【解答】解：在正方体ABCD﹣A1B1C1D1中，连接FC1，FD1，三棱锥F﹣ECD的外接球即为三棱柱FC1D1﹣ECD的外接球，在△ECD中，取CD中点H，连接EH，则EH为边CD的垂直平分线，所以△ECD的外心在EH上，设为点M，同理可得△FC1D1的外心N，连接MN，则三棱柱外接球的球心为MN的中点设为点O，由图可得，EM2＝CM2＝CH2+MH2，又MH＝2﹣EM，CH＝1，如右图所示：，可得，所以，解得，所以．故选：D．【点评】本题考查的知识要点：锥体与球的关系的应用，球的体积公式的应用，主要考查学生的运算能力和转换能力及思维能力，属于基础题型．7．【分析】设双曲线的左焦点为F，连接AF，BF，可得四边形AFBC为矩形，由双曲线的定义和勾股定理，以及三角形的面积公式，化简整理可得a，b的关系，即可得到所求双曲线的渐近线方程．【解答】解：设双曲线的左焦点为F，连接AF，BF，由题意可得AC⊥BC，可得四边形F ABC为矩形，即有|AF|＝|BC|，设|AC|＝m，|BC|＝n，可得n﹣m＝2a，n2+m2＝4c2，mn＝2a2，即有4c2﹣8a2＝4a2，即有c ＝a，b ＝＝a，可得双曲线的渐近线方程为y ＝±x．故选：B．【点评】本题考查双曲线的定义和方程、性质，考查矩形的定义和勾股定理的运用，考查运算能力，属于基础题．8．【分析】由方程的解的个数与函数图象的交点的个数的关系得：方程f（g（x））＝a的实根个数为函数t＝g（x）的图象与直线t＝t1，t＝t2，t＝t3，t＝t4的交点个数之和，再结合函数图象观察可得解．【解答】解：设t＝g（x），则f（t）＝a，则方程f（g（x））＝a的实根个数为函数t＝g（x）的图象与直线t＝t1，t＝t2，t＝t3，t＝t4的交点个数之和，要方程f（g（x））＝a的实根个数最多，则需f（t）＝a的解如图所示，由图（2）可知，函数t＝g（x）的图象与直线t＝t1，t＝t2，t＝t3，t＝t4的交点个数之和为8，故选：C．【点评】本题考查了方程的解的个数与函数图象的交点的个数的关系及作图能力，属难度较大的题型．二、多项选择题（本题共4小题，每小题5分，共20分.在每小题给出的选项中，有多项符合题目要求.全部选对的得5分，部分选对的得3分，有选错的得0分）9．【分析】设t＝log a b，代入化解求出t的值，得到a的b关系式，由a b＝b a可求出a，b的值．【解答】解：令t＝log a b，则t +＝，∴2t2﹣5t+2＝0，（2t﹣1）（t﹣2）＝0，∴t ＝或t＝2，∴log a b ＝或log a b＝2∴a＝b2，或a2＝b∵a b＝b a，代入得∴2b＝a＝b2或b＝2a＝a2∴b＝2，a＝4，或a＝2．b＝4∴．或故选：AD．【点评】本题考查对数的运算及性质，换元法的应用，属于基础题．10．【分析】由题意，函数在“和谐区间”上单调递增，且满足f（x）＝x至少有两个解，逐项判断即可．【解答】解：由题意，函数在“和谐区间”上单调递增，且满足f（x）＝x至少有两个解，对于A选项，函数f（x）＝x3在定义域R上单调递增，且x3＝x有解﹣1，0，1，满足条件，故正确；对于B选项，函数f（x）＝3在（0，+∞）上单调递增，且有解1，2，满足条件，故正确；对于C选项，函数f（x）＝e x﹣1在定义域上单调递增，但e x﹣1＝x只有一个解0，不满足条件，故错误；对于D选项，函数f（x）＝lnx+2在（0，+∞）上单调递增，显然函数f（x）＝lnx+2与函数y ＝x在（0，+∞）上有两个交点，即lnx+2＝x有两个解，满足条件，故正确．故选：ABD．【点评】本题以新定义问题为载体，考查了函数的单调性、零点及函数图象等基础知识点，属于基础题．解题的关键是理解“和谐区间”的定义．11．【分析】对于选项A，B，由正弦定理，两角和的正弦函数公式可求2cos C sin C＝sin C，结合sin C ≠0，可得cos C ＝，结合范围C∈（0，π），可求C的值；对于选项C，D，由三角形的面积公式可求a2＝2bc sin A ，利用余弦定理，两角和的正弦函数公式可求+＝4sin（A +），结合已知利用正弦函数的性质即可求解．【解答】解：∵2cos C（a cos B+b cos A）＝c，∴由正弦定理可得2cos C（sin A cos B+sin B cos A）＝sin C，∴2cos C sin（A+B）＝2cos C sin C＝sin C，∵sin C≠0，∴可得cos C ＝，∵C∈（0，π），∴C ＝，可得A正确，B错误．∵边BC 上的高为a，∴bc sin A ＝•a •，∴a2＝2bc sin A，∵cos A ＝，∴b2+c2＝a2+2bc cos A＝2bc sin A+2bc cos A，∴+＝＝2sin A+2cos A＝4sin（A +）≤4，当A +＝时等号成立，此时A ＝，故C正确，D错误．故选：AC．【点评】本题主要考查了正弦定理，两角和的正弦函数公式，三角形的面积公式，余弦定理，正弦函数的性质在解三角形中的应用，考查了转化思想，属于中档题．12．【分析】根据题意，结合等差数列的前n项和公式以及通项公式，依次分析选项，综合即可得答案．【解答】解：根据题意，数列{a n}是等差数列，若a1+5a3＝S8，即a1+5a1+10d＝8a1+28d，变形可得a1＝﹣9d，又由a n＝a1+（n﹣1）d＝（n﹣10）d，则有a10＝0，故A一定正确，不能确定a1和d的符号，不能确定S10最小，故B不正确；又由S n＝na1+＝﹣9nd +＝×（n2﹣19n），则有S7＝S12，故C一定正确，则S20＝20a1+d＝﹣180d+190d＝﹣10d，S20≠0，则D不正确，故选：AC．【点评】本题考查等差数列的性质以及前n项和公式，关键是掌握与等差数列有关的公式，属于基础题．三、填空题（本题共4小题，每小题5分，共20分）13．【分析】根据题意，结合二项式定理把（x+2y）5按照二项式定理展开，由多项式乘法的性质分析可得答案．【解答】解：根据题意，（x﹣2y）5＝x5﹣10x4y+40x3y2﹣80x2y3+80xy4﹣32y5，则（2x+y）（x+2y）5展开式中x3y3的系数为2×（﹣80）+1×40＝﹣160+40＝﹣120，故答案为：﹣120．【点评】本题考查二项式定理的应用，关键是掌握二项式定理的形式，属于基础题．14．【分析】由等比数列可得x+2y＝1，则＝+＝1++，由基本不等式可得．【解答】解：x＞0，y＞0，是2x与4y的等比中项，则2x•4y＝2，∴x+2y＝1，∴＝+＝1++≥1+2＝1+2，当且仅当＝时，即x ＝﹣1，y ＝取等号，故答案为：2+1【点评】本题考查基本不等式，涉及等比数列的性质，属基础题．15．【分析】由已知先求k MC，然后根据圆的性质可求k AB，写出AB所在直线方程，联立方程可求A，B，然后根据向量数量积的坐标表示即可求解．【解答】解：设M（﹣1，1）圆心C（﹣2，0），∵k MC ＝＝1，根据圆的性质可知，k AB＝﹣1，∴AB所在直线方程为y﹣1＝﹣（x+1），即x+y＝0，联立方程可得，2x2+4x﹣5＝0，设A（x1，y1），B（x2，y2），则x1+x2＝﹣，令y＝0可得P（0，0），＝x1x2+y1y2＝2x1x2＝﹣5，故答案为：﹣5．【点评】本题主要考查了向量的数量积的坐标表示及直线与圆相交性质的简单应用．16．【分析】由题意利用任意角的三角函数的定义，两角和的正切公式，求得m、n的值．【解答】解：若P （﹣，m）是角θ终边上的一点，且sinθ＝＝，∴m ＝．∵tanθ＝＝﹣1，n＝tan（θ+）＝＝0，故答案为：；0．【点评】本题主要考查任意角的三角函数的定义，两角和的正切公式，属于基础题．四、解答题（本题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤）17．【分析】（1）先利用三角恒等变换将f（x）化简成y＝A sin（ωx+θ）的形式，再利用图象平移变换方法得到g（x），根据g （）＝，可求得角C．（2）利用正弦定理将给的式子化边，利用余弦定理可求得cos A ，结合，问题可解．【解答】解：（1）f（x）＝cos x（sin x ﹣cos x）+＝＝，∴g（x）＝f（x）＝sin（2x ﹣），∵g （）＝，∴，∴，∴，故C ＝．（2）∵3（sin B﹣sin C）2＝3sin2A﹣8sin B sin C，由正弦定理得：3（b﹣c）2＝3a2﹣8bc，∴，∴，∴，∴cos（A﹣C ）＝，＝．【点评】本题通过考查三角函数的恒等变换和图象变换以及正余弦定理的应用，考查了学生的数学运算、逻辑推理等数学核心素养．属于中档题．18．【分析】（1）通过，说明数列{a n}是以2为首项，2为公比的等比数列，求解通项公式．（2）由（1）得，，利用错位相减法求解数列的和即可．【解答】解：（1）因为，①当n＝1时，2a1﹣S1＝2a1﹣a1＝2，所以a1＝2．当n≥2时，2a n﹣1﹣S n﹣1＝2，②①﹣②得2a n﹣S n﹣（2a n﹣1﹣S n﹣1）＝0，即a n＝2a n﹣1．因为a1＝2≠0，所以a n≠0，所以（n∈N*，且n≥2），所以数列{a n}是以2为首项，2为公比的等比数列，所以．（2）由（1）得，，所以，③，④③﹣④得，＝6+（21+22+23+…+2n）﹣（n+3）×2n+1＝＝6+2n+1﹣2﹣（n+3）×2n﹣1＝4﹣（n+2）2n+1，所以．【点评】本题考查数列的递推关系式的应用，数列求和，考查计算能力．19．【分析】（I）取BE的中点F，AE的中点G，证明CF⊥平面ABE，通过证明四边形CDGF是平形四边形得出CF∥DG，故DG⊥平面ABE，于是平面ABE⊥平面ADE；（II）建立空间坐标系，计算平面ADE和平面BDE的法向量，通过计算法向量的夹角得出二面角的大小．【解答】（Ⅰ）证明：取BE的中点F，AE的中点G，连接FG、GD、CF，则GF AB．∵DC AB，∴CD GF，∴四边形CFGD为平行四边形，∴CF∥DG．∵AB⊥平面BEC，∴AB⊥CF．∵CF⊥BE，AB∩BE＝B，∴CF⊥平面ABE．∵CF∥DG，∴DG⊥平面ABE．∵DG⊂平面ADE，∴平面ABE⊥平面ADE．（Ⅱ）解：过E作EO⊥BC于O．∵AB⊥平面BEC，∴AB⊥EO．∵AB∩BC＝B，∴EO⊥平面ABCD．以O为坐标原点，OE、BC所在的直线分别为x轴、y轴，过O且平行于AB的直线为z轴建立如图所示的空间直角坐标系．设AB＝BC＝4，则A（0，﹣2，4），B（0，﹣2，0），D（0，2，2），E（2，0，0），∴＝（﹣2，2，2），＝（﹣2，﹣2，4），＝（﹣2，﹣2，0）．设平面EAD 的法向量为＝（x1，y1，z1），则有，即，取z1＝2得x1＝，y1＝1，则＝（，1，2），设平面BDE 的法向量为＝（x2，y2，z2），则，即，取x2＝1，得y2＝﹣，z2＝2，则＝（1，﹣，2）．∴cos ＜＞＝＝＝．又由图可知，二面角ADEB的平面角为锐角，∴二面角A﹣DE﹣B 的余弦值为．【点评】本题考查了面面垂直的判定，空间向量与二面角的计算，属于中档题．20．【分析】（1）设直线l的方程为y＝2x+b，将直线l与抛物线C的方程联立，利用△＝0求出b 的值，从而得出直线l的方程；（2）设点A（x1，y1）、B（x2，y2）、P（x3，y3）、Q（x4，y4），设直线l的方程为y＝2x+b，将直线l的方程与抛物线C的方程联立，由△＞0得出b的范围，并列出韦达定理，求出|AB|并求出线段AB的中点坐标，然后得出线段AB中垂线的方程PQ，将直线PQ的方程与抛物线C的方程联立，列出韦达定理并求出|PQ|，然后得出的表达式，结合不等式的性质求出这个代数式的取值范围．【解答】解：（1）设直线l的方程为y＝2x+b，联立直线l与抛物线C 的方程，得x2﹣2x﹣b＝0，△＝4+4b＝0，所以，b＝﹣1，因此，直线l的方程为y＝2x﹣1；（2）设直线l的方程为y＝2x+b，设点A（x1，y1）、B（x2，y2）、P（x3，y3）、Q（x4，y4），联立直线l与抛物线C 的方程，得x2﹣2x﹣b＝0，△＝4+4b＞0，所以，b＞﹣1．由韦达定理得x1+x2＝2，x1x2＝﹣b．所以，，因为线段AB的中点为（1，2+b），所以，直线PQ 的方程为，由，得2x2+x﹣5﹣2b＝0，由韦达定理得，，所以，，所以，，所以，的取值范围是．【点评】本题考查抛物线的综合问题，考查韦达定理设而不求法在抛物线综合问题中的应用，考查计算能力，属于中等题．21．【分析】（Ⅰ）由阅读时间分组统计表，得到m＝4，n＝2．由此能估计该读书小组中人均每周的课外阅读时长和该读书小组中一周阅读时长不少于90分钟的人数．（Ⅱ）估计新成员每周阅读时长在[60，90）之间的概率为，依题意ξ～B（5，），由此能求出ξ的分布列和数学期望．（Ⅲ）完成下面的2x2列联表，求出k0≈0.808，从而没有90%的把握认为“每周至少阅读120分钟与性别有关”．【解答】解：（Ⅰ）由阅读时间分组统计表，得到m＝4，n＝2．估计该读书小组中人均每周的课外阅读时长为：＝93分钟．该读书小组中一周阅读时长不少于90分钟的人数为：1200×＝480人．（Ⅱ）估计新成员每周阅读时长在[60，90）之间的概率为，依题意ξ～B（5，），共分布列为：P（ξ＝0）＝＝，P（ξ＝1）＝＝，P（ξ＝2）＝＝，P（ξ＝3）＝＝，P（ξ＝4）＝＝，P（ξ＝5）＝＝，∴ξ的分布列为：ξ012345P∴E（ξ）＝5×＝．（Ⅲ）完成下面的2x2列联表：每周阅读时间不少于120分钟每周阅读时间少于120分钟合计男3811女189合计41620k0＝≈0.808，∴没有90%的把握认为“每周至少阅读120分钟与性别有关”．【点评】本题考查概率的求法，考查离散型随机变量的分布列、数学期望的求法，考查独立检验的应用，考查运算求解能力，考查函数与方程思想，是中档题．22．【分析】（Ⅰ）求出函数的导数，通过讨论a的范围，求出函数的单调区间即可；（Ⅱ）通过讨论a的范围，结合函数的单调性求出函数的最小值，从而确定a的范围即可．【解答】解：（Ⅰ）函数f（x）的定义域是（0，+∞），f′（x）＝1﹣＝，①当a≤0时，f′（x）＞0，f（x）在（0，+∞）递增，②当a＞0时，由f′（x）＝0，解得：x＝a，故f（x）在（0，a）递减，在（a，+∞）递增，综上，当a≤0时，f（x）在（0，+∞）递增，当a＞0时，f（x）在（0，a）递减，在（a，+∞）递增；（Ⅱ）①当a＝0时，∵x≥1，∴f（x）＝x﹣1≥0恒成立，故a＝0符合题意，②当a＜0时，e a＜0，∵f（1）＝a＜0，故f（x）≥0不恒成立，舍，③当a＞0时，由（Ⅰ）知f（x）在（0，a）递减，在（a，+∞）递增，下面先证明：e a＞a（a＞0），设p（a）＝e a﹣a，∵p′（a）＝e a﹣1＞0，∴p（a）在（0，+∞）递增，p（a）≥p（0）＝1＞0，故e a＞a，故f（x）在[e a，+∞）递增，故f（x）min＝f（e a）＝e a﹣a2+a﹣1，设q（a）＝e a﹣a2+a﹣1（a＞0），则q′（a）＝e a﹣2a+1，q″（a）＝e a﹣2，由q″（a）＞0，解得：a＞ln2，由q″（a）＜0，解得：0＜a＜ln2，故q′（a）在（0，ln2）递减，在（ln2，+∞）递增，故q′（a）≥q′（ln2）＝3﹣2ln2＞0，故q（a）在（0，+∞）递增，故q（a）＞q（0）＝0，故f（x）min＞0，故f（x）≥0恒成立，故a＞0符合题意，综上，a的范围是[0，+∞）．【点评】本题考查了函数的单调性，最值问题，考查导数的应用以及分类讨论思想，转化思想，是一道综合题．。
七年级下学期期末数学模拟试卷十二（含答案）一、选择题（共10小题，每小题3分，满分30分。
下面每小题给出的四个选项中，只有一个是正确的。
）1．下列各组图形中，一个图形经过平移能得到另一个图形的是（）A．B．C．D．2．下列各数中是无理数的是（）A．B．πC．6.25D．3．下列运算正确的是（）A．＝±5B．|﹣3|＝3C．＝3D．＝﹣4 4．下列事件中，最适合采用普查的是（）A．对我校七年级一班学生出生日期的调查B．对全国中学生节水意识的调查C．对山东省初中学生每天阅读时间的调查D．对某批次灯泡使用寿命的调查5．不等式4x＜3x+1的解集在数轴上表示正确的是（）A．B．C．D．6．下列图形中，线段AD的长表示点A到直线BC距离的是（）A．B．C．D．7．如图，a⊥c，b⊥c，若∠1＝70°，则∠2等于（）A．70°B．90°C．110°D．80°8．如图，下列条件：①∠1＝∠5；②∠2＝∠6；③∠3＝∠7；④∠4＝∠8．其中能判定AB ∥CD的是（）A．①②B．②③C．①④D．②④9．小亮的妈妈用28元钱买了甲乙两种水果，甲种水果每千克4元，乙种水果每千克6元，且乙种水果比甲种水果多买了2千克，求小亮妈妈两种水果各买了多少千克？设小亮妈妈买了甲种水果x千克，乙种水果y千克，则可列方程组为（）A．B．C．D．10．已知且0＜y﹣x＜1，则k的取值范围是（）A．﹣1B．0C．0＜k＜1D．＜k＜1二、填空题（共6小题，每小题3分，满分18分）11．若点P（x，y）在第四象限，|x|＝2，|y|＝3，则P点的坐标为．12．计算：﹣2＝．13．如图，将一个含有30°的三角尺的直角顶点放在直线a上，a∥b，∠1＝50°，则∠2＝度．14．方程组的解是．15．某粮油食品局对某种学生快餐的营养成分进行检测，绘制成如图所示的统计图，已知快餐中碳水化合物有160克，那么快餐中脂肪有克．16．如图所示，将长方形纸片ABCD进行折叠，如果∠BHG＝70°，那么∠BHE＝度．三、解答题（本题有9个小题，共72分，解答要求写出文字说明、证明过程取计算步骤。
临床助理医师考前模拟测试试题1、有关增强子的叙述，错误的是A.它是远离转录起始点的DNA序列B.它是增强启动予转录活性的顺式作用元件C.它是起正调节作用的反式作用因D.它决定基因的时间.空间特异性因子E.发挥作用的方式通常与方向.距离无关【答案】C2、蛋白质二级结构是指分子中A.氨基酸的排列顺序B.每一氨基酸侧链的空间构象C.局部主链的空间构象D.亚基间相对的空间位置E.每一原子的相对空间位置【答案】C3、以下关于尿糖的说法中正确的是A.尿糖阳性肯定有血糖升高B.尿糖阳性是肾小管不能将管腔液中糖全部吸收的结果C.尿糖阳性肯定有糖代谢异常D.根据尿糖阳性可诊断为糖尿病E.尿糖阴性者可除外糖尿病【答案】B4、男.70岁.因观看足球比赛突然晕倒而入院治疗。
查体发现左侧上.下肢瘫痪.腱反射亢进.左侧眼裂以下面瘫.伸舌时舌尖偏向左侧。
左半身深.浅感觉消失。
双眼左侧半视野缺失.瞳孔对光反射存在。
考虑病变的部位在A.左侧中央前.后回B.右侧中央前回C.左侧内囊D.右侧内囊E.右侧中央后回【答案】D5、HIV的传播方式不包括A.性传播B.输血传播C.血液制品传播D.垂直传播E.食品.餐具传播【答案】E6、阿司匹林用于抗血栓形成的剂量描述正确的是A.同解热作用相同的剂量B.同抗炎作用相同的剂量C.同镇痛作用相同的剂量D.小于解热作用的剂量E.与应用的剂量没有关系【答案】D7、下列符合1985年WHO糖尿病分类的是A.糖尿病分类中不包括继发性糖尿病B.2型糖尿病分为肥胖和非肥胖两类C.已知有糖尿病合并妊娠者属妊娠糖尿病D.葡萄糖耐量异常为糖尿病的一个亚类E.妊娠糖尿病属糖尿病的一个亚类【答案】B8、对传染病病人或疑似传染病病人污染的场所和物品.医疗保健机构应当及时采取A.封闭场所并销毁物品B.强制隔离治疗C.必要的卫生处理D.报告上级卫生行政机关处理E.提请卫生防疫部门处理【答案】C9、属于Ⅲ型超敏反应性疾病的是A.过敏性鼻炎B.新生儿溶血C.Arthus反应D.接触性皮炎E.支气管哮喘【答案】C10、关于上消化道出血的描述，下列哪一项不正确A.大量出血后可出现肠源性氮质血症B.大量出血后，在1——2个小时内血红蛋白与红细胞压积不下降C.大量出血后，白细胞可有明显升高D.通过对呕血与黑便的定量测定，可准确判断出血量E.消化道出血后的贫血属于正细胞正色素性【答案】D11、某一晚期艾滋病病人出现脑膜脑炎的症状.体征，脑脊液检查有高滴度抗体，以印度墨汁染色发现大量有厚荚膜的酵母型菌，引起这种机会性感染最可能的真菌是A.厌酷球孢子菌B.新型隐球菌C.荚膜组织胞浆菌D.脑膜炎球菌E.白念球菌【答案】B12、41岁男性患者，前胸部被撞伤，X线检查可见左第9.10肋骨骨折，2天后突发休克，最可能的原因是A.气胸B.肝破裂C.脾破裂D.胃破裂E.结肠破裂【答案】C13、慢性胃炎经检查HP阳性需选用A.质子泵抑制剂B.西沙必利C.吗丁啉D.稀盐酸E.铁剂【答案】A14、术后10天.已进流质饮食.突然出现呕吐.禁食后症状好转.钡餐检查见吻合口延及输出段有较长狭窄.形似漏斗和一细线形的漏斗尾.该病人可选择的治疗措施不包括A.胃肠减压B.输血C.应用皮质激素D.胃肠外营养E.立即手术【答案】B15、男性.32岁.3小时前从5米高处跌下.左腰部撞到石块上.当时无昏迷.现血压正常.感左腰部疼痛伴轻压痛.尿常规RBC+／HP.最可能的诊断是A.肾挫伤B.肾部分裂伤C.肾全层裂伤D.肾蒂断裂E.肾蒂伤伴输尿管损伤【答案】A16、急性肾小球肾炎的严重病例常发生在起病的A.1——2周内B.3——4周内C.5——6周内D.7——8周内E.9——10周内【答案】A17、在心动周期中.心室内压力上升最快的阶段是A.快速射血期B.等容收缩期C.缓慢射血期D.等容舒张期E.快速充盈期【答案】B18、下列关于DNA碱基组成的叙述正确的是A.DNA分子中A与T的含量不同B.同一个体成年期与少儿期碱基组成不同C.同一个体在不同营养状态下碱基组成不同D.同一个体不同组织碱基组成不同E.不同生物来源的DNA碱基组成不同【答案】E19、某心性水肿患者.用地高辛和氢氯噻嗪治疗.2周后患者出现多源性室性早搏.其主要原因是B.低血钙C.低血钠D.高血镁E.低氯碱血症【答案】A20、下列哪项对出血坏死型胰腺炎最具诊断价值A.血清脂肪酶增高B.血清淀粉酶增高C.血钙降低D.血胆红素增高E.B超或CT检查胰腺增大，轮廓边界模糊不清【答案】C21、促使轴突末梢释放神经递质的离子是A.K+B.Na+C.Ca2+D.Cl-E.H+22、使慢性粒细胞白血病达到血液学缓解的首选药物是A.白消安B.伊马替尼C.靛玉红D.a干扰素E.环磷酰胺【答案】B23、贲门周围血管离断术需离断的血管中不包括A.胃冠状静脉B.胃短静脉C.胃网膜右静脉D.胃后静脉E.左膈下静脉【答案】C24、下列各种组织，哪种再生能力最强A.骨骼肌B.神经节细胞C.心肌D.神经胶质细胞E.软骨【答案】D25、肝硬化时反映纤维化的试验是A.血清乳酸脱氢酶升高B.血清单胺氧化酶升高C.血浆白蛋白降低D.谷-草转氨酶升高E.血清胆固醇升高【答案】B26、女性，18岁。
中医内科学试题及答案1、患者肺胀病史20年，咳嗽，痰白泡沫状，少食乏力，自汗怕风，面色少华，腹胀，便溏，舌体胖大，齿痕，舌质淡，苔白，脉细或脉缓或弱。
治疗应首选A.六君子汤B.五苓散C.真武汤D.玉屏风散E.涤痰汤【答案】A D2、午后或夜间潮热，或手足心热，或骨蒸颧红，心烦盗汗，失眠多梦，口干咽燥，大便干结，尿少色黄，舌红而干，或有裂纹，无苔或少苔，脉象细数，治疗应取何法A.益气生血，甘温除热B.滋阴清热C.益气养阴D.养血解表E.以上都不是【答案】B3、下列属于阴虚风动所致中风临床表现的是A.平素有耳鸣B.双目干涩C.腰酸腿软D.气粗口臭E.舌红少苔【答案】A B C E4、阳虚秘的代表方为A.四神丸B.理中丸C.济川煎D.暖肝煎E.金匮肾气丸【答案】C5、以下哪一项不是辨别风寒和风热两类感冒的主要依据A.恶寒发热的孰轻孰重B.舌苔黄与白C.脉浮与不浮D.渴与不渴E.咽喉肿痛与否【答案】C6、黄疸胆腑郁热证的特点为A.黄疸鲜明B.右胁腹疼痛C.疼痛牵引肩背D.寒热往来E.脉弦滑数【答案】A B C D E7、不寐的病位主要在A.心B.肝C.脾D.肺E.肾【答案】A8、久痿虚极，脾肾精气虚败，病情危笃，常出现下列哪些并病或变证A.汗出如油B.口噤不开C.舌体瘫软D.呼吸困难E.神昏谵语【答案】C D9、丁某，男，患肝病多年。
近1周出现腹大按之不坚，胁下胀满，时有疼痛，纳食欠佳，小便短少，嗳气不爽，食后作胀，舌苔白腻，脉弦。
此属何病证A.水湿浸渍型水肿B.水湿困脾型鼓胀C.气滞湿阻型鼓胀D.肝郁气滞型鼓胀E.肝气郁结型胁痛【答案】C10、中风的基本病机为A.阴阳失调，气血逆乱B.气血不足，清窍失养C.痰浊瘀血，闭阻清窍D.风火相煽，气血逆乱E.肝肾不足，筋脉失养【答案】A11、“感冒”之名，首见于A.《仁斋直指方论·诸风》B.《类证治裁·伤风》C.《丹溪心法·中寒二》D.《黄帝内经》E.《伤寒论》【答案】A12、中风的基本病机为A.阴阳失调，气血逆乱B.气血不足，清窍失养C.痰浊瘀血，闭阻清窍D.风火相煽，气血逆乱E.肝肾不足，筋脉失养【答案】A13、腹痛中虚脏寒证可选用的方剂是A.大建中汤B.小建中汤C.附子理中汤D.良附丸E.枳实导滞丸【答案】A B C14、患者症见寒甚热微，伴呕吐.腹泻，嗜睡昏蒙，苔白厚腻，脉弦。
2021学年苏教版四年级（上）期末数学模拟试卷（12）一、计算题1.2.3.先按要求将下面的算式写在横线上，再分别算出得数。
582÷4725÷6330÷8330÷8424÷7411÷6914÷3商是两位数的算式________商是三位数的算式________．在横线上填“>”或“<”105×6________6004×180________8003千克________3700克402÷2________402÷3．填表在横线里填上合适的单位。
1个鹅蛋大约重100________，10个这样的鹅蛋大约重1________．1个苹果重250________，4个这样的苹果重1________．小明身高124________，体重32________．一辆载重5000________的卡车共运了5台机器，每台机器重815________．图中物体的运动是平移的画“→”，是旋转的画“”在轴对称图形的下面画“√”．三、看图做题下面的每个小方格都表示边长1厘米的正方形。
请你利用这张方格纸先画一个周长10厘米的长方形，在画一个周长是12厘米的正方形。
用分数表示每个图形中的涂色部分。
四、解答题（1）一个乒乓球拍得价钱是一个乒乓球的多少倍？（2）一个羽毛球拍的价钱是一个羽毛球的多少倍？（3）一个网球拍的价钱是一个羽毛球的3倍。
一个网球拍多少元？学校召开家长会，一共邀请了142为家长参加。
如果每6人围坐一桌，至少要准备多少张桌子？一台机器每天可以生产490米花布。
照这样的计算，这台机器一个星期一共可以生产多少米花布？（双休日不生产）校园里有8行杉树，每行27棵。
松树的棵树是杉树的3倍，松树有多少棵？小云有28张画片，小娟的画片比小云多13张，小芳的画片比小娟少16张。
小芳的画片有多少张？一个足球场，长是105米，宽是45米。
包头202402小学生英语模拟试卷第12次模拟试卷考试时间:100分钟（总分:100）考试人姓名：题号一二三总分得分一、(选择题)30分(2分/题)1、单项选择。
2、跟读下列字母。
1.A B C DE2.GIHMP3.xjnlf4.wySRZ5.TUVKL6.qr bdo7.aegyi3、判断下列句子搭配是否正确。
(正确的打“√”，错误的打“X”。
( )1.-Good morning!一Good afternoon!( )2.-Boy or girl?-Boy.( )3.Nice to see you.-Nice to see you, too.( )4.-Where are you from?-I'm OK!( )5.-This is Amy. She is from America. -Welcome!4、跟读下列对话。
1. -I'd like some bread, please.-Here you are.2. -Can I have some milk?-Here you are.-Thanks.-You're welcome.5、单项选择。
6、数一数，写一写。
7、跟读下面的句子。
1. This is my friend, Amy.2.He's my grandfather.3.Look at me! How beautiful!4. Is she your mother?5. Wait a minute!8、( )问别人来自哪儿，应该说:A. How old are you?B. Where are you from?C. Are you from China?9、跟读下列字母。
1.A BCDE2.GIH MP3.xjnlf4.wy SRZ5.TUVKL6. qr bdo7.aegyi10、( )第一次见到刘华爷爷，你应该说:A. My name is Mike.B. Nice to meet you, Mr Liu.C.How are you?11、给下列句子选择合适的应答语。
【精品】小升初数学模拟试卷及解析 (12)一、计算．1．口算．88﹣55= 199+65= 0.8×0.9= 3.2÷0.4=6×60= 80÷= ﹣= +﹣=2．脱式计算，能简算的要简算．［1］496﹣23×16［2］2.9×3.6+2.9×6.4［3］[1﹣［+］]×24．3．解方程．［1］30x=4.2［2］6x÷7=12［3］3x﹣1.2x=36．二、填空．4．2005年地震灾害造成我国二百零八万四千人受灾．横线上的数写作，四舍五入到万位大约是万．5．在括号里填上合适的单位．小明身高1.58 ，体重40 ，他每晚睡10 ，他卧室的面积大约是9 ．6．观察如图，以学校为观测点，少年宫在学校的方，位于学校西南方的是．7．原价a元的衬衣打九折后售价为元．8．﹣2℃比2℃低℃．9．找规律填数：9、13、17、21、、29．10．六年级同学植树，成活91棵，9棵没活，成活率是．11．在一幅比例尺1：150000的地图上，量得A和B市的图上距离是6厘米，实际距离是千米．12．体育课上同学们立定跳远的成绩统计图如下，请把表填完整．立定跳远成绩［米］1.2～1.3 1.4～1.6 1.7～1.8人数［人］4 18占全班人数的百分比36% 56%13．6个棱长为1厘米的小正方体堆放在桌上［如图］，露在外面的面积是平方厘米．三、选择．14．下图中，哪个图形的阴影部分占整个图的？［］A. B. C. D.15．下列四个数中，最大的是［］A.101%B.0.9C.D.116．下面一共有多少个小圆点？正确的算式是［］A.3×4×3B.4×4×3C.3+3×4D.3×［4+4］17．估计一下，下面最接近自己年龄的是［］A.600分B.600时C.600周D.600月18．下图中，以直线为轴旋转一周，可以形成圆柱的是［］A. B. C. D.19．有一份《华盛顿日报》，此报纸共206页，看图估计：体育版约占多少页？［］ A.10 B.30 C.50 D.10020．下图表示王老师周末去公园游玩的行程情况，请问：王老师在整个旅程中共走了多少千米？［］A.9千米B.20千米C.40千米D.43千米21．淘气用小棒搭房子，他搭3间用了13根小棒，像这样搭15间房子要用［］根小棒．A.60B.61C.65D.75四、判断．22．圆的周长和它的直径成正比例．．［判断对错］23．质数加1后就是偶数．．24．三角形中最大的一个角是70°，按角分类这是一个锐角三角形．．［判断对错］25．盒子里有100个白球和1个红球，任意摸出1个球，摸到红球的可能性为．．五、连一连、画一画．26．从不同的角度观察左边的立体图形，各是什么样子？连一连．27．画一画．［1］以虚线为对称轴，画出小树的另一半．［2］再将整个图形向右平移6格．［3］最后将平移的图形绕小树的下端点顺时针旋转90°．六、解决问题．28．算一算：哪种大米便宜些？29．希望小学全体师生步行到植物园参观，步行路线如下图．他们上午8时半从学校出发，平均每小时走3千米，什么时候能到达植物园？30．据科学资料显示，儿童负重最好不要超过体重的，如果长期背负过重物体，将不利于身体发育，小川的体重是30千克，书包重5千克．请你算一算：小川的书包超重了吗？31．如图，这个杯子能否装下500毫升的牛奶？32．某地2006年月平均气温变化情况如图：看图回答：［1］月份的月平均气温最高，月份的平均气温最低．［2］月份到月份气温上升最快，月平均气温上升了℃．［3］用简单的语言描述这一年来月平均气温变化的总趋势．参考答案与试题解析一、计算．1．口算．88﹣55= 199+65= 0.8×0.9= 3.2÷0.4=6×60= 80÷= ﹣= +﹣=考点：整数的加法和减法；分数的加法和减法；分数除法；小数乘法．专题：计算题．分析：根据四则运算的计算法则计算即可求解．解答：解：88﹣55=33 199+65=264 0.8×0.9=0.72 3.2÷0.4=86×60=360 80÷=6400 ﹣=+﹣=点评：考查了四则运算，关键是熟练掌握计算法则正确进行计算．2．脱式计算，能简算的要简算．［1］496﹣23×16［2］2.9×3.6+2.9×6.4［3］[1﹣［+］]×24．考点：整数、分数、小数、百分数四则混合运算；运算定律与简便运算；分数的简便计算．专题：压轴题．分析：［1］要先算乘法，再算减法；［2］运用乘法分配律，先算3.6与6.4的和，再用和乘2.9；［3］先算小括号里的加法，再算中括号里的减法，最后算括号外面的乘法．解答：解：［1］496﹣23×16，=496﹣368，=128；［2］2.9×3.6+2.9×6.4，=［3.6+6.4］×2.9，=10×2.9，=29；［3］[1﹣［+］]×24，=[1﹣]×24，=×24，=10．点评：此题考查整数、分数、小数的四则混合运算，有括号的要先算括号里面的，没有括号的，要先算乘除法，再算加减法，能简算的要简算．3．解方程．［1］30x=4.2［2］6x÷7=12［3］3x﹣1.2x=36．考点：方程的解和解方程．专题：压轴题．分析：［1］根据等式的基本性质，方程的两边同时除以30得出X=0.14；［2］利用等式的基本性质，方程的两边同时乘以7得出6x=84，再两边同时除以6求解；［3］先求出3x﹣1.2x得数是1.8X，再利用等式的基本性质，方程的两边同时除以1.8求出方程的解．解答：解：［1］30x=4.2，30X÷30=4.2÷30，X=0.14；［2］6x÷7=12，6X÷7×7=12×7，6X=84，6X÷6=84÷6，X=14；［3］3x﹣1.2x=36，1.8X=36，1.8X÷1.8=36÷1.8，X=20．点评：此题考查了利用等式的基本性质解方程，即“方程的两边同时加上或减去相同的数，同时乘以或除以相同的数0除外，等式仍然成立”．二、填空．4．2005年地震灾害造成我国二百零八万四千人受灾．横线上的数写作2084000 ，四舍五入到万位大约是208 万．考点：整数的读法和写法；整数的改写和近似数．分析：整数的写法是从高位写起，哪一位上是几就写几，一个也没有时用“0”占位；省略万位后面的尾数要看千位，千位上满5时向前一位进1，不满5时去掉．解答：解：二百零八万四千：在百万位上是2，万位上是8，千位上是4，剩下的位数上都是0，故写作：2084000．千位上是4，舍去，故四舍五入到万位大约是：208万．故答案为：2084000；208．点评：考查了整数的写法和整数的改写和近似数，解答本题要知道整数的数位顺序表，掌握亿以内数的写法，知道数位上没单位时用“0”表示以及怎样用四舍五入法求近似数的知识．5．在括号里填上合适的单位．小明身高1.58 米，体重40 千克，他每晚睡10 小时，他卧室的面积大约是9平方米．考点：根据情景选择合适的计量单位．分析：根据生活经验和情景选择合适的计量单位即可．解答：解：小明身高1.58米，体重40千克，他每晚睡10小时，他卧室的面积大约是9平方米．故答案为：米，千克，小时，平方米．点评：此题考查对生活事物的观察与经验的积累．6．观察如图，以学校为观测点，少年宫在学校的正东方，位于学校西南方的是医院．考点：根据方向和距离确定物体的位置．专题：图形与位置．分析：根据上北下南，左西右东的方位辨别方法，可知：以学校为观测点，少年宫在学校的右边即正东方，位于学校西南方的就是左下方是医院，据此解答．解答：解：以学校为观测点，少年宫在学校的正东方，位于学校西南方的就是医院．故答案为：正东，医院．点评：本题主要考查方位的辨别，注意上北下南，左西右东的方位辨别方法．7．原价a元的衬衣打九折后售价为0.9a 元．考点：折扣问题；用字母表示数．分析：打九折出售，就是按原价的90%出售，根据一个数乘分数的意义，用乘法计算即可得出结论．解答：解：a×90%=0.9a［元］，答：打九折后售价为0.9a元．点评：此题做题时应明确折扣和分数的关系，然后根据一个数乘分数的意义用乘法计算，即可得出结论．8．﹣2℃比2℃低 4 ℃．考点：正、负数的运算．分析：这是一道有关温度的正负数的运算题目，要想求﹣2℃比2℃低多少摄氏度，即求二者之差．解答：解：2﹣［﹣2］=4［℃．］答：﹣2℃比2℃低4℃．点评：本题考查零上温度与零下温度之差的题目，列式容易出错．9．找规律填数：9、13、17、21、25 、29．考点：数列中的规律．分析：先看这个数列是怎样变化的，主要根据每相邻两个数之间的和、差、及商来判断，找到变化规律求出所要填的数．解答：解：13﹣9=4，17﹣13=4，21﹣17=4，后一个数比前一个数多4，要填的数的后一个数是29，那么要填的数就是29﹣4=25．故答案为：25．点评：这是一相邻两个数之间的差是一定的，找到这个规律就可以求出要填的数．10．六年级同学植树，成活91棵，9棵没活，成活率是91% ．考点：百分数的实际应用．分析：根据×100%=成活率，由此列式解答即可．解答：解：×100%，=0.91×100%，=91%；答：成活率是91%．故答案为：91%．点评：此题属于百分率问题，计算的结果最大值为100%，都是用一部分数量［或全部数量］除以全部数量乘以百分之百，解题的时候不要被表面数字困惑．11．在一幅比例尺1：150000的地图上，量得A和B市的图上距离是6厘米，实际距离是9 千米．考点：图上距离与实际距离的换算［比例尺的应用］．专题：比和比例应用题．分析：依据图上距离与实际距离的比即为比例尺可知，实际距离=图上距离÷比例尺，将数据代入公式即可求解．解答：解：6÷=900000［厘米］=9［千米］，答：实际距离是9千米．故答案为：9．点评：此题主要考查比例尺的意义即图上距离与实际距离的换算；解答时要注意单位的换算．12．体育课上同学们立定跳远的成绩统计图如下，请把表填完整．立定跳远成绩［米］1.2～1.3 1.4～1.6 1.7～1.8人数［人］4 18占全班人数的百分比36% 56%考点：简单的统计表；百分数的实际应用．专题：压轴题．分析：根据题意，把参加的总人数看作单位“1”，就可以求出成绩在1.2至1.3米的人数占总人数的百分之几；再根据已知一个数的百分之几是多少，求这个数，即可求出参加的总人数，即可求出成绩在1.7至1.8米的人数；由此解答．解答：解：1﹣56%﹣36%=8%；18÷36%=18÷0.36=50［人］；50﹣18﹣4=28［人］；答案如下：立定跳远成绩［米］1.2～1.31.4～1.61.7～1.8人数［人］41828占全班人数的百分比8%36%56%．点评：此题属于简单的统计和百分数的实际应用，关键是找单位“1”，根据已知一个数的百分之几是多少，求这个数，求出参加的总人数；由此列式解答．13．6个棱长为1厘米的小正方体堆放在桌上［如图］，露在外面的面积是19 平方厘米．考点：从不同方向观察物体和几何体．专题：压轴题．分析：找出露在外面的正方形的面的个数，再乘一个面的面积1平方厘米，就可以找出答案．解答：解：根据对组合图形的观察：从前面看：；从后面看：；从右面看：；从左面看：；从上面看：；所以露在外的正方形有19个，1×1×19=19［平方厘米］故答案为：19．点评：找出每部分的面积求和，就可以得到组合图形的总面积．三、选择．14．下图中，哪个图形的阴影部分占整个图的？［］A. B. C. D.考点：分数的意义、读写及分类；平面图形的分类及识别．分析：根据分数的意义，图形的阴影部分占整个图形的，也就是把这个图形平均分成3份，其中2份为阴影部分，占全部图形的．解答：解：A图将图形平均分成三份，其中两份为阴影部分，占整个图形的．B图图形分为三份但不是平均分成的，且阴影部分只有一份．C图图形平均分成6份，且阴影部分有三份．D图图形平均分成6份，且阴影部分只有一份．故选A．点评：本题要在理解分数意义的基础上认真观察图形，然后找出符合题意的图形．15．下列四个数中，最大的是［］A.101%B.0.9C.D.1考点：小数、分数和百分数之间的关系及其转化；小数大小的比较．分析：有几个不同形式的数比较大小，一般情况下，都化为小数进行比较得出答案．解答：解：101%=1.01，≈0.9995；在1.01，0.9，0.995，1四个数中最大的是1.01；即101%是最大的；故选A．点评：解决有关小数、百分数、分数之间的大小比较，一般都把分数、百分数化为小数再进行比较，从而解决问题．16．下面一共有多少个小圆点？正确的算式是［］A.3×4×3B.4×4×3C.3+3×4D.3×［4+4］考点：整数的乘法及应用．分析：先数出一堆小圆点的个数，乘以3即可得到一共有多少个小圆点．解答：解：如图所示：由图形可知小圆点的个数为4×4×3．故选B．点评：考查了组合图形的计数，本题熟悉乘法的意义是关键，乘法是求几个相同加数和的简便运算．17．估计一下，下面最接近自己年龄的是［］A.600分B.600时C.600周D.600月考点：年、月、日及其关系、单位换算与计算．专题：压轴题．分析：此题用到时间单位分、时、日、星期、月、年之间的换算，用到的进率有1时=60分、1日= 24时、1年=12个月、1年≈52个星期.600分=10时，600时=25日，600周≈11年，600月=50年，由此做出选择．解答：解：600分=10时，600时=25日，600周≈11 年，600月≈50年；根据实际情况，故答案为：C．点评：此题考查对时间单位时、分，日、星期、月、年之间的换算，并根据具体情况进行选择．18．下图中，以直线为轴旋转一周，可以形成圆柱的是［］A. B. C. D.考点：将简单图形平移或旋转一定的度数；立体图形的分类及识别．专题：立体图形的认识与计算；图形与位置．分析：对于圆柱、圆锥、球以及由它们组成的几何体，都可以看做是由一个平面图形绕着一条直线旋转得到的，而圆柱是由一个长方形绕着一条边旋转得到的，得出结论．解答：解：因为圆柱从正面看到的是一个长方形，所以以直线为轴旋转一周，可以形成圆柱的是长方形；故选：C．点评：此题主要考查立体图形中的旋转体，也就是把一个图形绕一条直线旋转得到的图形，要掌握基本的图形特征，才能正确判定．19．有一份《华盛顿日报》，此报纸共206页，看图估计：体育版约占多少页？［］A.10B.30C.50D.100考点：扇形统计图．专题：统计数据的计算与应用．分析：根据题意，抓住两点：①扇形所对圆心角的度数与百分比的关系是：圆心角的度数÷360度数=百分比；②把总体看做单位“1”来解答．解答：解：由题干可知：体育版与生活版的和所对应的圆心角的度数是90°，90°÷360°×100%=25%，根据图可观察得出：体育版大约占了体育版和生活版和的60%，60%×25%=15%，206×15%≈30［页］，答：体育版约占30页．故选：B．点评：此题要结合图中圆心角的度数和百分数的应用进行解决．20．下图表示王老师周末去公园游玩的行程情况，请问：王老师在整个旅程中共走了多少千米？［］A.9千米B.20千米C.40千米D.43千米考点：路线图．专题：压轴题．分析：由题干分析可得，王老师公园游玩的总时间为：17﹣8=9［小时］，其中前3小时行走15千米，停留1小时后，又行走5千米，停留2小时后，返回家时用2小时行走20千米，由此路线分析即可选择得出正确答案．解答：解：［15+5］×2=20×2=40［千米］；所以王老师共走了40千米．故选：C．点评：此类题目的关键是抓住折线示意图中所描述的行走路程和停留的时间．21．淘气用小棒搭房子，他搭3间用了13根小棒，像这样搭15间房子要用［］根小棒．A.60B.61C.65D.75考点：数阵图中找规律的问题．专题：压轴题．分析：搭一间房用5根小棒，2间房用9根小棒，3间房用13根小棒，以后每增加一间房就多用4根小棒，由此解决问题．解答：解：第15间房除了第一间用5根小棒，其它都是4根小棒，则：［15﹣1］×4+5=61［根］故答案选：B．点评：先找到用小棒数的规律，再根据规律求解．四、判断．22．圆的周长和它的直径成正比例．√．［判断对错］考点：圆、圆环的周长；正比例和反比例的意义．专题：压轴题．分析：可以根据圆的周长的公式，进行变化，变为圆的周长和直径的比，看等于不等于常数，就能判定成不成正比例关系了．解答：解：圆的周长的公式为C=πd，=π，因为π是一个固定的数，也就是一个常数，根据判断是否成正比例的方法，可以判定圆的周长和它的直径成正比例关系；故答案为：√．点评：此题考查了圆的周长公式和判定正比例的方法．23．质数加1后就是偶数．错误．考点：奇数与偶数的初步认识；合数与质数．专题：压轴题．分析：根据质数和偶数的定义，自然数的排列规律，2是最小的质数，相邻的自然数相差1，据此解答即可．解答：解：2是最小的质数，2+1=3，3是奇数而不是偶数．除了2以外的质数加1后是偶数．故此题错误．点评：解答此题首先明确质数、偶数的定义，自然数的排列规律．24．三角形中最大的一个角是70°，按角分类这是一个锐角三角形．正确．［判断对错］考点：三角形的分类．专题：压轴题．分析：根据锐角三角形的定义即可进行判断．解答：解：三角形中最大的一个角是70°，那么另外两个角都是小于70°的角，三个角都是锐角的三角形是锐角三角形，所以原题说法正确，故答案为：正确．点评：紧扣锐角三角形的定义解决问题．25．盒子里有100个白球和1个红球，任意摸出1个球，摸到红球的可能性为．×．考点：可能性的大小．专题：压轴题．分析：可能性表示的是事情出现的概率，计算方法是：可能性等于所求情况数：总情况数，然后化简成最简分数形式．解答：解：球的总数为：100+1=101［个］1：101=，，摸到红球的可能性为；故答案为：错误．点评：本题主要考查了可能性大小的计算，可能性等于所求情况数与总情况数之比．五、连一连、画一画．26．从不同的角度观察左边的立体图形，各是什么样子？连一连．考点：从不同方向观察物体和几何体．专题：压轴题．分析：从上面看，能看到横着的3个正方形和向下的1个正方形，共4个正方形；从正面看，看到4个正方形，下边3个，左上角1个正方形；从左面看，只看到3个正方形，下边2个，左上角1个．解答：解：如图，点评：此题考查的是从不同的位置观察物体，看到物体的形状，做题时应仔细观察，联系实际，得出正确结论．27．画一画．［1］以虚线为对称轴，画出小树的另一半．［2］再将整个图形向右平移6格．［3］最后将平移的图形绕小树的下端点顺时针旋转90°．考点：作平移后的图形；作旋转一定角度后的图形．专题：图形与变换．分析：［1］根据轴对称图形的特征，对称点到对称轴的距离相等，对称点的连线垂直于对称轴，在对称轴的右边画出左图的关键对称点，依次连结即可．［2］根据平移的特征，把整数个图形的各顶点分别向右平移6格，依次连结即可．［3］根据旋转的特征，绕小树的下端点顺时针旋转90°，该点的位置不动，其余各部分均绕此点按相同方向旋转相同的度数，即可画出旋转后的图形，解答：解：．［1］以虚线为对称轴，画出小树的另一半［下图］：［2］再将整个图形向右平移6格［下图］：［3］最后将平移的图形绕小树的下端点顺时针旋转90°［下图］：点评：作轴对称图形、作平移后的图形、作旋转一定度数后的图形关键是确定对称点［对应点］的位置．六、解决问题．28．算一算：哪种大米便宜些？考点：整数的除法及应用；整数大小的比较．分析：先求出每千克多少元，然后比较大小．解答：解：80÷40=2［元］，75÷25=3［元］，2＜3；答：左边40千克一袋的大米便宜．点评：此题考查了整数的除法及应用和整数大小的比较．29．希望小学全体师生步行到植物园参观，步行路线如下图．他们上午8时半从学校出发，平均每小时走3千米，什么时候能到达植物园？考点：简单的行程问题；时、分、秒及其关系、单位换算与计算．分析：本题是简单的行程问题，路程÷速度=时间，所以先求出总路程［3.6千米+2.4千米］，知道了速度，就能求出所需时间．然后再加上出发时间就是到达植物园时间．解答：解：2.4+3.6］÷3，=6÷3，=2［小时］；到达时间为8时30分+2时=10时30分；答：10时30分能到达植物园．点评：本题要注意是求到达时间，不是求需要多少时间，算出需要多少时间后，不要忘记再加上出发时间才是到达时间．30．据科学资料显示，儿童负重最好不要超过体重的，如果长期背负过重物体，将不利于身体发育，小川的体重是30千克，书包重5千克．请你算一算：小川的书包超重了吗？考点：分数乘法应用题．专题：分数百分数应用题．分析：把小川的体重看成到单位“1”，用乘法求出他体重的，就是他最大的负重量，然后与5千克比较即可．解答：解：30×=4.5［千克］；4.5＜5；答：小明的书包超重．点评：本题的关键是找出单位“1”，已知单位“1”的量求它的几分之几是多少用乘法．31．如图，这个杯子能否装下500毫升的牛奶？。
12月CET4模拟试卷及答案12月CET4模拟试卷及答案篇1professor kumar bhatt, founder and head of warwick manufacturing group(wmg), and rob meakin, a personnel director at marconi, have developed a partnership to train engineers and managers to becomee-literate. the new knowledge partnership will include a team of 40 marconi managers in what professor bhatt calls electronic engineering management or e2. a wide range of engineering and non-engineering companies has expressed interest in these exciting programs.professor bhatt believes that e-commerce is changing the business environment to a huge extent. many chief executives do not understand the power of the new technologies and, in some cases, are actually resisting change. he says that “as long as enough industry leaders realize its potential benefits, e-businesswill make possible a second productivity revolution in britain. this could take the economy close to eliminating the still substantial competitiveness gap with its main rivals. over the last five years in the us there has been a 30% improvement in manufacturing sector productivity because of information technology. in britain we can achieve more than that and successful e-business will be worth billions to the uk economy.”already britain makes more use of computer-aided design and manufacture (cad/cam) and management information technology systems than other european countries, and has a government that actively promotes e-business. but, observes professor bhatt, britain has never used technology as a growth driver. “the thing about electronic engineering management is that you can keep your legacy systems; you just need tolink those systems with an information engine. at the touch of a buttonit will allow project managers to see the status of a project, identify problems precisely and make virtually immediate decisions based on information that will be much more complete than in the past.”the e2 program is the result of an alliance by the warwick manufacturing group with america’s leading e-commerce studycenter,carnegie mellon. the latter will be responsible for training many of the marconi managers in america, where the group has half its business. in britain, professor bhatt has linked up with sun microsystems, oracle and parametric technology, to set up amulti-million pound e2 design and manufacturing center at theuniversity which will be used for training and research.professor bhatt believes that e-commerce is changing business tosuch an extent that wmg is likely to be renamed warwick electronicmanufacturing group. but, he warns “the move to globalize because ofe-commerce is racing ahead. although the net allows british industryto overtake their european peers, it also offers asian countries toleapfrog(相互超越) the west. for the first time it is not the privilegeof the western world because this technology is universal.”a) they do not understand a possible second productivity revolution in britain.d) they sometimes are against the change resulted from new technologies.23.according to the passage, what do you know about e-business in britain?d) e-business has great potential and will make changes in the country.a) britain can be competitive to us in the area of information technology.b) britain has already taken the advantages of running engineering management.c) as with many other european countries, britain has made use of computer-aided systems.d) e-commerce has offered opportunities to european countries to eliminate the competitiveness gap with all the rivals.a)britain is going to catch up with all other european countries in the field of electronic engineering managementc)the e-commerce has offered asian countries the chance to overtake britain and the rest of europeemotional maturity means knowing that another person cannot fill up the hole in your heart. that is your responsibility. you need to love and affirm yourself day-by-day, moment-by-moment. that is the spiritual challenge of your life and everybody’s life. without your love for yourself, nothing works. no amount of love from your partner is enough. the search for love from other people is like the alcoholic’s search forhappiness in a bottle. the more he drinks, the less satisfied he feels and the more he wants to drink.we are all addicted to falling in love. but after we’ve “fallen” a few times and broken our emotional bones, we hopefully wise up a bit. we know that the high of falling in love is not going to last. we know that sooner or later we will have to get real with each other. that is the difference between romance and partnership. romance is an attempt tokeep the addiction going. it has a very short half-life. partnership is the dance of two ordinary people learning to live together day by day.it is a very challenging school that we enroll in. it is sometimes a lot more work than play. and it certainly requires a lot more psychological adjustment than years of therapy! we don’t just graduate from this school in a year or two. it takes many years, perhaps even a lifetime,for us to master the curriculum. your partners are imperfect human beings, just like you. they were not the “wrong” partners any morethan you were. probably, they reflected your own level of realism and emotional maturity. that’s usually the way it works. so don’t wasteyour time thinking you simply made some bad choices. the only bad choice you made was forgetting who has the full time job loving you. i knowthat you know who this is !we keep remembering that they are not perfect, nor we are. love isnot a game of perfection. it is a game of overwhelming imperfection.the amazing thing is that love survives all of our mistaken attempts to control our partners and our relationships.d) love lies in the maturity of emotion which is essential to a partnership or relationship27.which of the following statements is true according to the passage?b) as long as we are emotionally mature, we can always enjoy the high of falling in love.c) love doesn’t die even if we make wrong attempts to control our partners.a) the more we try to control our partners and relationships, the better we can enjoy loveb) the more frequently we fall in love, the more intelligent we’ll bec) the more emotionally mature a couple are, the more harmonious they will live29.by saying “they were not the ‘wrong’ partners any more than you were.”(para 3), the author means ___.b) in some partnership or relationship, he or she tries to control the other.c) through psychological adjustment and therapy, one will feel satisfied with love.d) partnership is a school from which it is not easy for us to graduate.in a growing number of conflicts around the world, one or both sides attempt to label the other as “terrorist” in an effort to win support for their own causes. yet as the so-called “terrorists group” often proclaim, a clear distinction between a terrorist action and a non-terrorist military operation is frequently difficult to establish. most governments argue that terrorism is defined by violent methods to achieve political ends which are undertaken by organizations not recognized bythe world community as legitimate representatives of a nation; furthermore, random acts of violence, like attacks on school buses or shopping centers, are labeled as “terrorist”. political organization as the ira(irishrepublican army) and the plo (palestine liberation organization) have been dubbed(称为) “terrorists”, by the governments of england and israel because of their tactics and their non-official statuses as representatives of accurately defined nations. in the case of the plo, however, its election to power under yasser arafat has now confused its former recognition as terrorist. even the ira is earning status as an authentic opposition voice to the continued presence of british troops on irish soil.all this simply highlights the problems of separating what is a legitimate political organization with “the right” to employ violence to achieve political ends from so-called terrorist groups. inseparable from this issue is historical precedence(地位先后) and the degree of power and prestige an organization or nation has on the world stage. for example, while most independent observes would agree that the ira setting off a bomb in a london subway station confirms its notoriety, they would be less certain that israel’s recent bombing of a refugee camp is equally “terrorist”, despite the fact that many more innocent people were killed and injured in the latter incident than in the former. this raises the question, though certainly not for the first time, whether legitimate, even democratically elected, governments are also capable of terrorist action. is there always a clear moral distinction between the behavior of normally respected nations and that of “rogue”(流氓) organizations? what does seem clear from these reflections is not that terrorist actions are in any way justified, but that the use of such labels is sometimes based on a political needrather than on superior moral or ethical grounds.a) non-official status of a political organization involves terrorist suspicion.it is curious how much one despises and condemns the vices which one does not happen to possess. i am indeed not a severe man, nor would i permit myself to become intolerant of those failings which i share with others. but, having no particular temptation to be untruthful, i find myself believing that when one comes to think of it, truth is the major virtue and lying the most blameworthy of all the vices.i should like, therefore, to get my mind a little clearer on the truth question. i flatter myself, as i have said, that i am a truthful man: a man who, when he tells a lie, is careful not to forget that he has done so, andwho takes infinite precautions to prevent his being found out. this, in the end, is the only test by which you can distinguish the liar from the man of truth. the latter which is bothered by untruthfulness, is worried and anxious. the real liar, however, is merely amused: he doesn’t mind in the least even if he is subsequently exposed: he regards the truthful man as somewhat of a fool.but this surely is one of the many false statements with which the real liar will try hard to idealize his failing. it may be inevitabe and even just to tell lies, but it cannot seriously be argued that such habits are intelligent. a lie is always an act of mental cowardice, whereas intelligence is brave. and yet there was bismarck, and yet there was napoleon-surely intelligent man, and surely liars. the problem, therefore, is not so simple as it seems. it was simple enough, in those old days, to define with approximate accuracy when a given statement ceased to be the truth and became a lie. the essential test was whether the maker of a false statement knew that he was saying something false, and consciously wished his audience to accept, and to remain under, this false impression. life in civilized communities is a process of adjusting the personal to the social, of conforming the individual impression to the joint impressions of the common people. this process of adjustment leads inevitably and rightly to a certain unconscious deception. absolute truth, whether unconscious or even conscious, is thus impossible. it is to relative truth only that we can hope to aspire.a) a person shows strong disapproval of the vices an individual doesn’t havec) one may be tempted to untruthfulness when one comes to think of itd) untruthfulness is a serious fault of character which he condemns strongly38.the essential distinction between a truthful person and a liar lies in the fact that ___.b) the latter takes great care to hinder his untruths from being exposedc) the former is willing to confess his untruthfulness when he tells a liec) argue that their habits of telling lies are intelligent rather than foolishb) in modern society, nobody can escape the risk of making a false statement, intentionally or unintentionallydirections:there are 30 incomplete sentences in this part. for each sentence there are four choices marked a), b), c) and d). choose the one that best completes the sentence. then mark the corresponding letter on the answer sheet with a single line through the center.41.a great deal of ___ for our success should go to michael lee, head of our team.42.they question whether a fair way can be ___ to tell which employees really perform better than their fellow employees.43.the report indicates that it is financially ___ to build a water power station in the area.44.somehow she felt that she herself had to some extent been the cause of all the trouble,and suffered___.45.the gas company ___ a leak in the main line and evacuated all the tenants of the building.46.at the 27th olympic games she ___ two gold and one silver medals in the track and field events.47.more than 790,000 youths were reported to have____the national master’s entrance examination last year.48.as a general rule, people with a great deal of ___ often have admiring friends and bitter enemies.49.after she gave birth to a child, she was ___ to go back to work in order to make the ends meet.50.that football club tried to ___ the famous player with offers of a tremendous sum of money.51.many animal can ___ with their surroundings because of their protective coloring.52.the strange phenomenon has ___ and puzzled many scientists for more a century.53.as we all know, the same gestures may have different ___ which vary from one culture to another.54.with the advent of pc and home-information systems, we’ll one day be able to ___ most business dealings from home.55.it was an awful accident. i wonder how you managed to ___ without a scratch.56.this difficult problem we face in the project has to be tackled before we can ___ to others.57.while most scientists agree that the greenhouse effect is coming, there are not enough data yet to say with absolute ___ what its consequences will be.58.it is a___that in such a rich and prosperous country there should be so many poverty-stricken people.59.it’s a well-known fact that truth will in the end ___ over falsehood, and right over wrong.60.we can’t choose whether we will pay income tax or not, for payment of income tax is ___.61.it’s generally agreed that fluctuations in birth rate are ___ to a number of economic factors.62.it’s always better to ___ a problem before it arises than to search for a solution to it afterwards.63.it takes tremendous courage to ___ a belief that is not shared by many others.64.as a good employer, he knows how to make full use of the ___ of his employees’ talents and abilities.65.over the years jazz has changed and developed but it has essentially ___ its fundamental characteristics.66.economics is a subject that ___ all people’s lives whether they are conscious of it or not.67.when one gets a good ___ into a problem, he will usually find a way to approach it or solve it.68.she cares much about other people’s opinions about her and is particularly ___ to personal criticisms.69.my secretary has typed out the first___of the report,but i must revise it before i submit to the conference.70.they reported the loss in the financial fraud and gave all the necessary ___ to the police.directions: for this part, you are allowed 30 minutes to write a composition on the topic economic development and moral decline. you should write at least 150 words and you should base your compositiononthe outline (given in chinese) below:这是一篇议论文。
