5年高考3年模拟教师用书新课标
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专题十七概要写作挖命题【考情探究】考点考查内容考查方式考情分析2024.11 2024.6 2024.11 2024.6 2024.10概要写作1.对原文主旨及要点的理解和呈现状况;2.概括要点时语法结构和词汇应用的精确性;3.概要文章上下文的连贯性;4.对各要点表达的独立性状况供应一篇350词以内的短文,要求考生基于该短文写出一篇60词左右的内容概要在申请高校之前,最好亲自去目标学校看一下。
假如时间和金钱不允许,就在网上获得信息分析解读概要写作是综合性的写作考查。
要求考生首先对原文有精确的理解、对原文的结构和要点有精确的把握,然后再用高级的语法结构及合适的连接词写出包含全部要点的短文。
所以,考生要想做好本题,就必需留意以下几点:(1)精确理解文章。
(2)把握文章的各个要点。
(3)运用精确的语法结构、丰富的词汇和合适的连接词。
(4)运用自己的语言表述,不要照抄原文中的句子。
【真题典例】阅读下面短文,依据其内容写一篇60词左右的内容概要。
It’s a really good idea to visit colleges before you apply because their websites can all start to look and sound the same. Nothing will give you the sense of what it will actually be like to live on a college campus(校内)like visiting and seeing for yourself the dorms, classrooms and athletic equipment and, of course, the students. It seems a little crazy once senior year hits to find the time to visit college campuses, and it can also be pricey if the schools you are applying to happen to be more than a car ride away. But keep in mind that you are making a decision about the next four years of your life, and do all the research you can to make 概要写作的文章一般都是说明文或争论文。
专题九 非谓语动词破考点【网络清单】非谓语动词{ 形式{ 肯定式{ 不定式{主动形式:to do,to be doing,to have done,to have been doing被动形式:to be done,to have been done 现在分词、动名词{主动形式:doing,having done 被动形式:being done,having been done 过去分词:done 否定式:以上肯定形式前加not,如:not to do,not doing,not to be done 等复合结构{动名词的复合结构:名词所有格/形容词性物主代词+动名词不定式的复合结构:for sb./sth.+不定式句法功能{不定式:作主语、宾语、补语、状语、表语、定语分词:作补语、定语、状语、表语动名词:作主语、宾语、定语、表语功能辨析{ (★★★)作宾语{ 只用不定式作宾语的动词只用动名词作宾语的动词(词组)既可用不定式,也可用动名词作宾语,但意义上有区别的动词(词组)need,want,require,deserve 后的不定式、动名词作宾语的用法(★★★)作定语{ 不定式作定语分词作定语动名词作定语to be done,being done,done 作定语的区别(★)作主语、表语(★★★)作状语{ 不定式作状语分词作状语独立成分作状语独立主格结构(★)作补语{用不定式作宾语补足语/主语补足语的动词及动词词组不定式、分词作感官动词宾语补足语/主语补足语不定式、分词作使役动词宾语补足语/主语补足语动词leave,keep,find,catch 及介词with 后作宾补的不定式、分词的区别...be said/believed/supposed/reported/considered/found/thought 后需用不定式作主语补足语 【考点集训】考点一 非谓语动词作主语、表语和宾语1.(2018河南郑州一次质检,67)In my mind, they re helping us to become calm and consider (win)and solving real problems as well.答案winning2.(2018山西长治二中等五校联考,69)His new idea was (make)the shell shapes on the roof into the shape of a ball.答案to make/making3.(2017北京朝阳第一学期期中,29) (follow)the suggestions will help to achieve your goal of a job in the medical profession.答案Following考点二非谓语动词作定语1.(2018北京西城第一学期期末,23)The experience(gain)from failure is of great value to us.答案gained2.(2017北京,30)The national park has a large collection of wildlife, (range)from butterflies to elephants.答案ranging3.(2017北京海淀一模,25)Like great athletes or scientists,great teachers have the ability(inspire)others as well.答案to inspire考点三非谓语动词作状语1.(2018北京丰台第一学期期末,2) (see)that it was going to rain,James took a raincoat with him.答案Seeing2.(2018北京丰台第一学期期末,7)Though(tell)of the danger,Mr.Brown still risked his life to save the boy in the fire.答案told3.(2015北京,21) (catch)the early flight,we ordered a taxi in advance and got upvery early.答案To catch考点四非谓语动词作补语1.(2017北京海淀第一学期期末,32)Jenny was practicing her speech in the hall when she heard her name(call).答案called2.(2017北京朝阳一模,30)Last month we spent so much to have the roof(replace), for it always leaked when it rained.答案replaced过专题【五年高考】A组自主命题·北京卷题组考点一非谓语动词作主语、表语和宾语1.(2018北京,3) (travel)along the old Silk Road is an interesting and rewarding experience.答案Traveling2.(2014北京,35)The film star wears sunglasses.Therefore,he can go shopping without(recognize).答案being recognized考点二非谓语动词作定语1.(2017北京,32)Jim has retired,but he still remembers the happy time(spend) with his students.答案spent2.(2015北京,23)The park was full of people,(enjoy)themselves in thesunshine.答案enjoying3.(2014北京,25)Last night,there were millions of people (watch)the opening ceremony live on TV.答案watching4.(2014北京,28)There are still many problems(solve)before we are ready for a long stay on the Moon.答案to be solved考点三非谓语动词作状语1.(2018北京,6)During the Mid-Autumn Festival,family members often gather together (share)a meal,admire the moon and enjoy moon cakes.答案to share2.(2018北京,10)Ordinary soap,(use)correctly,can deal with bacteria effectively.答案used3.(2017北京,27)Many airlines now allow passengers to print their boarding passes online(save)their valuable time.答案to save4.(2016北京,26)(make)it easier to get in touch with us,you d better keep this card at hand.答案To make5.(2016北京,28)(order)over a week ago,the books are expected to arrive any time now.答案Ordered6.(2016北京,32)Newly-built wooden cottages line the street,(turn)the oldtown into a dreamland.答案turningB组统一命题、省(区、市)卷题组考点一非谓语动词作主语、表语和宾语1.(2018天津,8)It took him a long time (acquire)the skills he needed to become a good dancer.答案to acquire2.(2018天津,12)I didn t mean (eat)anything but the ice cream looked so good that I couldn t help trying it.答案to eat3.(2017江苏,30)A quick review of successes and failures at the end of year will help (shape)your year ahead.答案shape4.(2016浙江,19)I had as much fun sailing the seas as I now do(work)with students.答案working5.(2015安徽,27) (ignore)the difference between the two research findings will be one of the worst mistakes you make.答案Ignoring/To ignore6.(2014福建,30)For those with family members far away,the personal computer and the phone are important in staying (connect).答案connected7.(2014湖南,23) (understand)your own needs and styles of communication is as important as learning to convey your affection and emotions.答案Understanding考点二非谓语动词作定语1.(2017天津,10)I was watching the clock all through the meeting,as I had a train (catch).答案to catch2.(2016浙江,10)To return to the problem of water pollution,I d like you to look at a study(conduct)in Australia in2012.答案conducted3.(2016江苏,28)In art criticism,you must assume the artist has a secret message (hide)within the work.答案hidden4.(2014大纲全国,23)Today there are more airplanes (carry)more people than ever before in the skies.答案carrying5.(2014山东,6)There s a note pinned to the door (say)when the shop will open again.答案saying6.(2014重庆,5)The producer comes regularly to collect the cameras (return)to our shop for quality problems.答案returned7.(2014浙江,14)Amie Salmon,disabled,is attended throughout her school days by a nurse (appoint)to guard her.答案appointed考点三非谓语动词作状语1.(2018江苏,26)Around13,500new jobs were created during the period, (exceed) the expected number of12,000held by market analysts.答案exceeding2.(2017天津,14)The hospital has recently obtained new medical equipment, (allow)more patients to be treated.答案allowing3.(2017江苏,21)Many Chinese brands,(develop)their reputations over centuries,are facing new challenges from the modern market.答案having developed4.(2016天津,4)The cooling wind swept through our bedroom windows,(make)air conditioning unnecessary.答案making5.(2015江苏,24)Much time(spend)sitting at a desk,office workers are generally troubled by health problems.答案spent6.(2015天津,5)(absorb)in painting,John didn t notice evening approaching.答案Absorbed7.(2015天津,8) (work)for two days,Steve managed to finish his report on schedule.答案Having worked8.(2015福建,28) (learn)more about Chinese culture,Jack has decided to take Chinese folk music as an elective course.答案To learn9.(2015湖南,30)When the clerk saw a kind face wrinkled in an apologetic smile,she stood rooted to the ground, (wonder)whether to stay or leave.答案wondering10.(2015湖南,34)Sometimes I act as a listening ear for fellow students (talk)over what is bothering them.答案to talk11.(2015重庆,11)Like ancient sailors,birds can find their way(use)the sun and the stars.答案using12.(2015重庆,6) (raise)in the poorest area of Glasgow,he had a long,hard road to becoming a football star.答案Raised13.(2014湖南,21)Children,when (accompany)by their parents,are allowed to enter the stadium.答案accompanied14.(2014湖南,27)There is no greater pleasure than lying on my back in the middle of the grassland, (stare)at the night sky.答案staring15.(2014湖南,35) (free)ourselves from the physical and mental tensions,we each need deep thought and inner quietness.答案To free16.(2014陕西,20) (work)out the difficult maths problem,I have consulted Professor Russell several times.答案To work17.(2014四川,7)—I hope to take the computer course.—Good idea. (find)out more about it,visit this website.答案To find考点四非谓语动词作补语1.(2018天津,7)I need a new passport so I will have to have my photograph (take).答案taken2.(2015陕西,18)Back from his two-year medical service in Africa,Dr.Lee was very happy to see his mother(take)good care of at home.答案taken3.(2015浙江,18)Listening to music at home is one thing,going to hear it (perform)live is quite another.答案being performed4.(2014四川,5)The manager was satisfied to see many new products (develop)after great effort.答案developed【三年模拟】1.(2019届北京海淀第一学期期中,23)If you want to stand out in the world of advertisements,(repeat)old ideas is not enough.答案repeating2.(2019届北京海淀第一学期期中,33) (emphasize)the woman even more,Chen Yifei adds a lot of detail to the fan and the cloth of her dress.答案To emphasize3.(2018北京海淀一模,4)(guarantee)good air quality,the government is replacing coal fuel with natural gas.答案To guarantee4.(2018北京西城一模,3)This teacher teaches his students writing carefully, (hope)to improve their writing skills.答案hoping5.(2018北京朝阳一模,9)Look!Here s a photo(take)in my classroom at primary school.Can you recognize me in it?答案taken6.(2018北京西城二模,6) (know)your strengths and weaknesses will help you achieve your dreams.答案Knowing7.(2018北京海淀二模,3)Personally speaking,(turn)the grand blueprint into reality is a long process.答案turning8.(2018北京西城二模,3)A new engineer was appointed to deal with the products (return)by customers.答案returned9.(2018北京朝阳第一学期期中,3)People with disabilities are doing many things (improve)the quality of their lives.答案to improve10.(2018北京海淀第一学期期中,31)Since Wolf WarriorⅡwas on,it has earned5.6 billion yuan,(set)a new record for Chinese movies.答案setting11.(2018北京西城第一学期期末,29)The earthquake hit central Mexico on Tuesday evening, (injure)31people.答案injuring12.(2018北京东城第一学期期末,6)Workers have been working through the night (make)the bridge safe.答案to make13.(2018北京东城第一学期期末,10)The rainforest is an amazing place,(fill)with plants and animals that aren t found anywhere else in the world.答案filled14.(2018北京石景山第一学期期末,10)John always gets up early in the morning (feel)energetic and ready to start a new day.答案feeling15.(2018北京海淀一模,9)Once(accept)by the soccer team,you ll need to train three times a week.答案accepted16.(2018北京朝阳一模,12) (deal)with such a problem before,we handled the situation very well this time.答案Having dealt17.(2018北京东城一模,10)The book(publish)next year is supposed to be a best-seller.答案to be published18.(2018北京东城一模,14) (realize)that he had fallen behind,Peter started to quicken his pace.答案Having realized19.(2018北京东城一模,4)The dictionary has100new words(add)into its latest edition.答案added20.(2018北京西城一模,4)—Vivien,you look blue.What s wrong?—There are so many papers(finish).I m really busy recently.答案to finish21.(2018北京东城二模,9)It is almost impossible for planes(take)off in such a heavy fog.答案to take22.(2018北京东城二模,12)The new theme park,(open)last year,has received27 million visitors so far.答案opened23.(2018北京西城二模,8)With a science project(complete),Kevin spent his entire weekend in the library.答案to complete24.(2018北京海淀第一学期期末,32)The immersed tunnel of the Hongkong-Zhuhai-Macau Bridge is 6.7kilometers long,(make)it the world s longest and deepest undersea tunnel.答案making25.(2018北京石景山第一学期期末,2)The island,(join)to the mainland by a new bridge,is much easier to visit.答案joined26.(2018北京海淀第一学期期中,23)Anyone(find)boarding with knives would be stopped by security inspectors.答案found27.(2018北京朝阳第一学期期中,8) (work)in several countries,the young man seems to have the experience we re looking for.答案Having worked28.(2018北京朝阳第一学期期中,11)You can trust him.He is a man (know)throughout the business field for his honesty.答案known29.(2018北京海淀第一学期期末,25)Hearing the news,I felt a great load (take)off my mind and everything got easier.答案taken30.(2018北京西城第一学期期末,31) (admire)for its natural beauty,Guilin is regarded as a fairyland of colors.答案Admired31.(2018北京东城第一学期期末,13) (cover)840square miles,the national park has beautiful lakes,mountains,and forests.答案Covering32.(2018北京丰台第一学期期末,5)In1938,Pearl S.Buck became the first American woman(win)the Nobel Prize for Literature.答案to win33.(2017北京海淀二模,24) (express)his love,Chris sent his mom a thank you note on Mother s Day.答案To express34.(2017北京海淀一模,26)The newly-published dictionary will be of great help to foreigners (learn)Chinese.答案learning35.(2017北京海淀一模,29)When(trap)in a traffic jam,I often listen to my favorite music to relax.答案trapped36.(2017北京西城一模,24)Our team defeated Class3in the basketball match on Wednesday,(beat)them36to35.答案beating37.(2017北京海淀第一学期期中,26)The Chinese Women Volleyball Team, (coach)by Lang Ping,won the gold medal in the Rio Olympics.答案coached38.(2017北京丰台第一学期期末,28)Knocking loudly on the desktop,Mr.Brown made hisanger(know).答案known39.(2017北京朝阳第一学期期中,27) (work)hard all day,I went to bed at8 o clock.答案Having worked40.(2017北京朝阳一模,28)You should answer the questions(use)the information on your card.答案using41.(2017北京西城一模,34)In this library,you can use your own computer to connect to Wi-Fi specially(prepare)for readers.答案prepared42.(2017北京海淀第一学期期中,31)China has launched the manned spacecraft Shenzhou-11,(mark)another milestone in the space program.答案marking43.(2017北京海淀第一学期期末,24) (work)as a volunteer teacher in Tibet for a year,Linda has become more experienced.答案Having worked44.(2017北京朝阳第一学期期中,31)They are very glad that most of the people (question)gave very useful answers.答案questioned。
第三部分书面表达专题十四书面表达挖命题【考情探究】内容五年高考试题2014北京卷2015北京卷2016北京卷2017北京卷2018北京卷第一节要求考生根据所给提示,用英语写一篇不少于50词的短文应用文应用文应用文应用文应用文第二节要求考生根据所给情景,用英语写一篇不少于60词的短文。
记叙事情的经过情景作文情景作文情景作文情景作文情景作文分析解读近五年北京市高考一直保持考查两篇作文的模式,第一节作文以交流为目的,更加关注学生是否能够使用恰当的语言完成书面交际任务。
第二节作文以记叙经历的一件事为主,用图片来传递事情的主要内容,话题贴近学生的生活。
【真题典例】真题再现假设你是红星中学高三学生李华,请给你的美国朋友Jim写一封邮件,告诉他你打算参加龙舟训练营,希望他一起参加。
邮件的内容包括:1.介绍训练营的相关内容(例如:时间、地点、参加者等);2.说明你打算参加的原因;3.询问对方的意向。
注意:1.词数不少于50;2.开头和结尾已给出,不计入总词数。
提示词:龙舟训练营Dragon Boat Training Camp 写作点拨此题为提纲类作文,写作时需要将提纲中所列要点全部涵盖,可以适当增添与主旨紧密相关的细节。
写作时主要使用第一人称和第三人称,时态主要包括一般现在时和一般将来时。
由于文章是邮件,写作时要Dear Jim,Yours, Li Hua体现交流的功能,不要仅在开头“打招呼”、在结尾“说再见”,考生应在字里行间自然地流露出与收信人的沟通。
范文一览范文解读Dear Jim,I m writing to tell you my exciting plan for the summer holiday.I intend to join a Dragon Boat Training Camp.I wonder if you d like to go with me.This camp will open on July 20th.It offers teenagers,like you and me,a chance to enjoy sports and learn about Chinese culture.If you are interested in it,let me know and I ll send you more information.Hope to meet you at the training camp this summer.Yours, Li Hua信件开门见山,告诉收信人写信的目的和自己的打算并询问对方是否愿意参加。
第一部分语言文字运用专题一正确使用词语(包括熟语)挖命题【考情探究】分析解读正确使用词语(包括熟语)属于考纲中的表达应用层级。
对于近义实词,要了解词义的变化发展和多义词的基本义、引申义、比喻义等,能根据语言环境准确理解词语的特定意义和临时意义。
虚词,主要考查对句子的内部结构以及句子之间关系的理解和分析能力。
正确使用词语(包括熟语)以往是以单项选择题的形式进行考查,2018年发生变化,改为以语段综合(本书专题四详解)的形式进行考查。
【真题典例】破考点【考点集训】1.(2016课标全国Ⅰ,13)下列各句中加点成语的使用,全都正确的一项是( )①第二展厅的文物如同一部浓缩的史书,举重若轻....地展示了先民们在恶劣的自然条件下顽强抗争、繁衍生息的漫长历史。
②这部翻译小说虽然是以家庭生活为题材的,却多侧面、多视角地展现出那个时代光怪陆离....的社会生活画卷。
③毕业后他的同学大都顺理成章地走上了音乐创作之路,而他却改换门庭....,另有所爱,一头扎进中国古代文化研究中。
④就对后世的影响来说,我们一致认为《封神演义》虽然比不上《西游记》,但和《聊斋志异》是可以并行不...悖.的。
⑤在那几年的工作学习中,杨老师给了我很大的帮助,他的教导在我听来如同空谷足音....,给我启示,带我走出困惑。
⑥我国绘画史上有一个时期把王石谷等四人奉为圭臬....,凡是学画,都以他们为宗,有的甚至照摹照搬。
A.①②④B.①③⑤C.②⑤⑥D.③④⑥答案C2.(2015课标全国Ⅰ,13)依次填入下列各句横线处的成语,最恰当的一组是( )①这正是经验丰富的主教练在战术安排上的之处:下半场比赛中想方设法消耗对方主力队员的体力,终于扭转劣势,赢得比赛。
②经过几天的,又和病人家属做了充分沟通,吴医生最终否定了治疗小组提出的保守治疗方案,决定尽快为病人进行肺部手术。
③早在上个世纪末,当地决策者就,提出了从单一的小农业向大农业转移的战略措施,于是一个个生态经济园区应运而生。
5年高考3年模拟,教师用书,新课标篇一:5年高考3年模拟高中数学必修5综合能力测控5年高考3年模拟高中数学必修5综合能力测控(一)1、在△ABC中,角A、B、C所对的边分别为a、b、c,且a=2,.(1)若b=3,求sinA的值;(2)若△ABC的面积S △ABC=3,求b,c的值.2、数列{an}是首项a1=4的等比数列,且S3,S2,S4成等差数列.(1)求数列{an}的通项公式;(2)设bn=log2|an|,Tn为数列3、设集合A为函数y=ln(-x-2x+8)的定义域,集合B为函数合C为不等式4、已知在△ABC中,若,,a、b、c分别是角A、B、C所对的边.(1)求tan2A;(2),求△ABC的面积.的解集.(1)求A∩B;(2)若2的前n项和,求Tn.的值域,集,求a的取值范围.5、有一座大桥既是交通拥挤地段,又是事故多发地段,为了保证安全,交通部门规定:大桥上的车距d(m)与车速v(km/h)和车长l(m)的关系满足:(k为正常数),假定车身长为4m,当车速为60km/h时,车距为个车身长.(1)写出车距d关于车速v的函数关系式;(2)应规定怎样的车速,才能使大桥上每小时通过的车辆最多?n*6、已知数列{an}的前n项和为Sn=3,数列{bn}满足b1=-1,bn+1=bn+(2n-1)(n∈N).(1)求数列{an}的通项公式an;(2)求数列{bn}的通项公式bn;(3)若,求数列{cn}的前n项和Tn.123456篇二:【5年高考3年模拟】(新课标版)XX年高考数学真题分类汇编导数的概念及运算文导数的概念及运算考点一导数的概念及几何意义1.(XX陕西,10,5分)如图,修建一条公路需要一段环湖弯曲路段与两条直道平滑连接(相切).已知环湖弯曲路段为某三次函数图象的一部分,则该函数的解析式为( )==x+x-3x332=x-x =x+x-2x答案 Ax2.(XX广东,11,5分)曲线y=-5e+3在点(0,-2)处的切线方程为.答案 5x+y+2=03.(XX江西,11,5分)若曲线y=xln x上点P处的切线平行于直线2x-y+1=0,则点P的坐标是.答案 (e,e)4.(XX安徽,15,5分)若直线l与曲线C满足下列两个条件:(i)直线l在点P(x0,y0)处与曲线C相切;(ii)曲线C 在点P附近位于直线l的两侧,则称直线l在点P处“切过”曲线C.下列命题正确的是 (写出所有正确命题的编号).3①直线l:y=0在点P(0,0)处“切过”曲线C:y=x2②直线l:x=-1在点P(-1,0)处“切过”曲线C:y=(x+1)③直线l:y=x在点P(0,0)处“切过”曲线C:y=sin x④直线l:y=x在点P(0,0)处“切过”曲线C:y=tan x⑤直线l:y=x-1在点P(1,0)处“切过”曲线C:y=ln x答案①③④5.(XX山东,20,13分)设函数f(x)=aln x+,其中a为常数.(1)若a=0,求曲线y=f(x)在点(1, f(1))处的切线方程;(2)讨论函数f(x)的单调性.解析 (1)由题意知a=0时,f(x)=,x∈(0,+∞),此时f '(x)=.可得f '(1)=,又f(1)=0,所以曲线y=f(x)在(1, f(1))处的切线方程为x-2y-1=0.(2)函数f(x)的定义域为(0,+∞).f '(x)=+=.当a≥0时,f '(x)>0,函数f(x)在(0,+∞)上单调递增, 2当a 22Δ=(2a+2)-4a=4(2a+1).①当a=-时,Δ=0,f '(x)=≤0,函数f(x)在(0,+∞)上单调递减.②当a f '(x) ③当-0,设x1,x2(x1 则x1=,x2=.由于x1==>0,所以x∈(0,x1)时,g(x) x∈(x1,x2)时,g(x)>0,f '(x)>0,函数f(x)单调递增,x∈(x2,+∞)时,g(x) 综上可得:当a≥0时,函数f(x)在(0,+∞)上单调递增;当a≤-时,函数f(x)在(0,+∞)上单调递减;当- f(x)在,上单调递减,在上单调递增.36.(XX北京,20,13分)已知函数f(x)=2x-3x.(1)求f(x)在区间[-2,1]上的最大值;(2)若过点P(1,t)存在3条直线与曲线y=f(x)相切,求t的取值范围;(3)问过点A(-1,2),B(2,10),C(0,2)分别存在几条直线与曲线y=f(x)相切?(只需写出结论)32解析 (1)由f(x)=2x-3x得f '(x)=6x-3.令f '(x)=0,得x=-或x=.因为f(-2)=-10, f=, f=-, f(1)=-1,所以f(x)在区间[-2,1]上的最大值为f=.(2)设过点P(1,t)的直线与曲线y=f(x)相切于点(x0,y0),则y0=2-3x0,且切线斜率为k=6-3,所以切线方程为y-y0=(6-3)(x-x0),因此t-y0=(6-3)(1-x0).整理得4-6+t+3=0.32设g(x)=4x-6x+t+3,则“过点P(1,t)存在3条直线与曲线y=f(x)相切”等价于“g((来自: 小龙文档网:5年高考3年模拟,教师用书,新课标)x)有3个不同零点”.2g'(x)=12x-12x=12x(x-1).g(x)与g'(x)所以,g(0)=t+3是g(x)的极大值,g(1)=t+1是g(x)的极小值.当g(0)=t+3≤0,即t≤-3时,此时g(x)在区间(-∞,1]和(1,+∞)上分别至多有1个零点,所以g(x)至多有2个零点.当g(1)=t+1≥0,即t≥-1时,此时g(x)在区间(-∞,0)和[0,+∞)上分别至多有1个零点,所以g(x)至多有2个零点.当g(0)>0且g(1)0,所以g(x)分别在区间[-1,0),[0,1)和[1,2)上恰有1个零点.由于g(x)在区间(-∞,0)和(1,+∞)上单调,所以g(x)分别在区间(-∞,0)和[1,+∞)上恰有1个零点.综上可知,当过点P(1,t)存在3条直线与曲线y=f(x)相切时,t的取值范围是(-3,-1).(3)过点A(-1,2)存在3条直线与曲线y=f(x)相切;过点B(2,10)存在2条直线与曲线y=f(x)相切;过点C(0,2)存在1条直线与曲线y=f(x)相切.篇三:XX版5年高考3年模拟成语常考清单及练习题5、3成语常考清单一、常见易误成语(一)容易望文生义1、爱莫能助:心里愿意帮助,但是力量做不到。
2、安土重迁:留恋故土,不肯轻易迁移。
3、白驹过隙:形容时间过得飞快,像小白马在细小的缝隙前一闪而过。
4、暴殄天物:原指残害、灭绝各种自然之物,后泛指任意损害、糟蹋物品。
5、别无长物:没有多余的东西,形容穷困或简朴。
易误解为没有什么长处。
6、不经之谈:形容荒唐无根据的话。
7、不刊之论:不能改动或不可磨灭的言论。
不能理解为不能刊登的文章。
不易之论:强调论断正确,不可改变。
8、不可理喻:不能够用道理使他明白,形容固执或蛮横,不通情理。
不能误解为不可理解。
9、不名一钱:一个钱也没有。
形容极其贫穷。
10、不忍卒读:文章悲惨动人,不能理解为文章的好坏。
11、不速之客:没有受到邀请而自己来的客人。
12、不为己甚:对人的责备或责罚要适可而止。
13、不一而足:同类的事物不止一个而是很多,无法列举齐全。
14、不足为训:不值得作为效法的准则或榜样。
15、侧目而视:不敢从正面看,斜着眼睛看。
形容畏惧而又愤恨。
16、差强人意:大体上还能使人满意。
17、持之有故:所持的见解和主张有一定的根据。
18、春风化雨:比喻良好教育的普遍深入,也用来称颂师长的教诲。
19、从长计议:慢慢地多加商量,即不急于做决定。
20、大动干戈:大张声势的行事。
21、大方之家:原指深于大道的人,后指精通某种学问或技艺的专家。
22、大快人心:坏人受到惩罚或打击,众人心里感到非常痛快。
23、党同伐异:和自己同党的就偏袒,不同派的就攻击。
24、登堂入室:学问或技能由浅入深,循序渐进,达到更高的水平。
25、别具一格:风格样子与众不同,一般用于文艺创作和某些事物;别开生面:新局面或形式,范围较广。
26对簿公堂:公堂上受审,不能理解为告上法庭。
27、感同身受:原指感激的心情如同亲身感受到对方的恩惠一样(多用来代替别人表示谢意),现多指虽未亲身经历,但感受就同亲身经历过一样,不能理解为共鸣。
28、耿耿于怀:有心事不能忘记。
不能理解诶对人怀恨在心。
29、瓜田李下:容易引起嫌疑的地方,或指比较容易引起嫌疑,让人误会,而又有理难辨的场合。
易误用为形容田园生活。
30、河东狮吼:比喻悍妇发怒。
31、呼之欲出:人像画的逼真,似乎一叫就会从画中走出来,指文学作品中人物描写十分生动。
32、涣然冰释:嫌隙、疑虑、误会等完全消除。
33、火中取栗受人利用冒了险,白吃苦自己还没有得到好处。
34、祸起萧墙:祸患发生在家里,比喻内部发生祸乱。
35、计日程功:数着日子计算进度,短时间就可以成功。
36、江河日下:江河的水天天向下游流,比喻情况一天天坏下去。
37、进退维谷:进退两难。
38、噤若寒蝉:不敢作声,不能理解为冷的不能出声。
39、久假不归:长期借去不归还。
40、具体而微:内容大体具备而形状或规模较小。
不能理解为事物具体而细小。
41、开门见山:说话或写文章直截了当,不拐弯抹角。
42、开门揖盗:引进坏人来危害自己。
43、可圈可点:原指文章中有精妙的句子,有值得欣赏、赞美的地方。
现用于文艺体育类新闻报道或其他领域形容或称赞一切出色、精彩、值得称道的事物。
44、空谷足音:寂静的山谷听到脚步声。
比喻极难得到的音信、言论或来访。
45、旷日持久:荒废时间,长期拖延。
46、屡试不爽:屡次试验都没有差错。
47、马革裹尸:形容英勇杀敌、战死疆场的无畏气概。
48、盲人瞎马:盲目行动,后果十分危险。
49、名正言顺:原指名义正当,道理也讲得通。
后指做事理由正当而充分,理直气壮。
50、明日黄花:比喻已失去新闻价值的报道或已失去应时作用的事物。
51、莫衷一是:不能得出一致的结论。
52、目光如炬:见识远大,不能理解为目光炯炯有神。
53、目无全牛:技艺已达到十分纯熟的地步。
54、七月流火:夏去秋来,寒天将至。
(常误用为形容天气热)55、求全责备:对人对事苛求完美。
不能理解为对人责备。
56、曲尽其妙:表现的技巧高明能将其中的奥妙充分表达出来。
形容表达能力强。
57、如坐春风:像坐在春风中。
比喻同品德高尚且有学识的人相处并受到熏陶。
58、三人成虎:说的人多了,人们就把谣言当事实了。
59、山高水长:人的品格节操高洁,影响深远。