高三二轮复习限时训练“8+4”(6)

合集下载

高考英语二轮专题复习阅读理解之限时训练(四)

手惰市安逸阳光实验学校高考英语二轮专题复习精品阅读理解部分之限时训练（四）阅读理解A breathtaking trick potentially left over from our ancestors might be found in us — the ability to sense oxygen through our skin. Amphibians(两栖动物), animals such as frogs that can live both on land and in water, have long been known to be capable of breathing through their skin. In fact, the first known lungless frog that breathes only through its skin was discovered recently in the rivers of Borneo. Now the same oxygen sensors found in frog skins and in the lungs of mammals have unexpectedly been discovered in the skin of mice.“No one had ever looked,” explained Randall Johnson, a biologist researcher.Mice and frogs are quite distant relatives, so the fact they have these molecules (分子) in common in their skin suggests they might well be found in the skin of other mammals, such as humans.“We have no reason to think that they are not in the skin of people too,” Johnson said.These molecules not only detect oxygen, but help increase levels of vital red blood cells, which carry oxygen around the body. Normal mice breathing in air that is 10 percent oxygen—a dangerously low level similar to conditions at the top of Mount Everest, and about half that of air at sea level. However, mice that had the oxygen sensor HIF-1 a genetically removed from their skin failed to produce this hormone (荷尔蒙) even after hours of such low oxygen.These findings, if they hold true in humans, suggest one could raise the level of oxygen circulating inside the body. This could help treat lung diseases and disorders such as anemia (贫血症) without injecting drugs, which make up a multibillion-dollar market, Johnson said.Athletes also often try to get more oxygen delivered to their muscles in order to improve their performance. They often do this by training at high altitudes or in low-oxygen tents. The new study suggests they might want to expose their skin as well as breathing in low-oxygen air to improve their performance. “It’s hard to say what exactly might be done, however—there’s a lot we don’t know yet,” Johnson explained. The scientists detailed their findings in the April 18 issue of the journal Cell.64. Which of the following statements is TRUE according to the passage?A. Johnson believes that oxygen sensors also exist in human skin.B. People have to surf the Internet to read detailed findings.C. It has been proved that these findings help treat lung diseasesD. It has long been expected oxygen sensors exist in mice’s skin.65. One of the functions of the molecules mentioned above is _______.A. carrying oxygen around the bodyB.improving athletes’ performanceC. detectingoxygenD. increasing level of oxygen66. What is Johnson’s attitude to the application of the findings to the athletes’ training?A. NegativeB. DoubtingC.Positive D. Hesitating67. The best title of the passage may be _______.A. Great Findings Benefit Athletes A LotB. Frogs And Mice Are Distant RelativesC. First Known Animal Breathes Through SkinD. Humans Might Sense Oxygen Through Skin完形填空（共20小题；每小题1分，满分20分）A farmer had some puppies (小狗) he needed to sell. He painted a sign36 the puppies and set about nailing it to a post on the 37 of his yard. As he was 38 the last nail into the post, he felt a pull on his clothes. He looked down 39 the eyes of a little boy.“Mister,” he said, “I want to buy one of your puppies. ”“ 40 ,” said the farmer, as he rubbed the sweat off the back of his neck, “these puppies co me from fine 41 and cost much money. ”The boy dropped his head for a moment. Then reaching 42 into his pocket, he pulled out a 43 of coins and said to the farmer. “I've got thirty-nine cents. Is that enough to take a look? ”“Sure, ” said the farmer, and with that he 44 a whistle, “Here, Dolly! ” he called.45 from the doghouse ran Dolly followed by four little balls of fur. The little boy 46 his face against the chain link fence. His eyes danced with 47 .As the dogs made their 48 to the fence, the little boy noticed something else. Another little ball appeared, obviously 49 . In a somewhat 50 manner the little puppy began hobbling toward the others, doing its best to catch up with others.“I want that one, ” the little boy said, pointing to it.The farmer 51 down at the boy's side and said, “Son, you don't. He will never be able to run and play with you like these other dogs. ”52 that the little boy stepped back from the fence, 53 down, and began rolling up one leg of his trousers. In doing so he exposed a steel brace(支持物) attaching itself to a 54 made shoe. Looking up, he said, “You see sir, I don't run too well myself, and he will need someone who understands. ”Yes, the world is full of people who need someone who 55 .36. A. introducing B. showing C. advertising D. explaining37. A. back B. edge C. center D. top38. A. driving B. pushing C. entering D. taking39. A. to B. on C. for D. into40. A. Certainly B. Well C. Sorry D. Likely41. A. parents B. friends C. relatives D. customers42. A. deeply B. deep C. wide D. widely43. A. number B. piece C. handful D. deal44. A. went out B. took out C. let out D. found out45. A. Away B. Far C. Out D. Into46. A. felt B. placed C. pushed D. pressed47. A. tears B. delight C. fear D. sorrow48. A. way B. direction C. path D. route49. A. whiter B. fatter C. thinner D. slower50. A. awkward B. forward C. smart D. interesting51. A. looked B. lay C. pointed D. knelt52. A. For B. In C. About D. With53. A. reached B. arrived C. lay D. put54. A. specially B. especially C. exactly D. naturally55. A. loves B. understands C. shares D. cares 任务型阅读：请认真阅读下面短文，在表格中的空格里填上最恰当的单词(每空1个单词)Since the beginning of human evolution, men have migrated（迁移）across continents in search of food, shelter, safety, and comfortable weather. People still move for these reasons, but new reasons for human migration are arising, such as job relocation(重新安置) and overpopulation. Three million migrants are moving from poor countries to wealthier ones each year, and increasingly, their destination is a neighboring country in developing parts of the world. People are moving within the developing world for the same reasons as they migrate to wealthier nations. People from poor countries are going to less poor countries, fleeing wars and conflicts. They are also responding to population pressures because some countries are densely populated, and they often have high population growth. Those people need to go somewhere else.There are three main reasons why people move. The basic categories and percentages are as follows, according to the Current Population Surveys (CPS):Family-related reasons account for 26.3%, including changes in marital （婚姻的） status, establishing a household and other family reasons; work-related reasons 16.2%, including job transfer, retirement, and other job-related reasons; housing-related reasons 51.6%, including new and better houses, better neighborhood, cheaper housing and other housing reasons; the remaining 5.9% of other reasons are attending college, the change of climate and health reasons.Americans have been migrating south and west for decades in search of better job opportunities and warmer climates. They have also been moving to places a little far from cities, in search of bigger yards and houses, lower crime rates and better schools. In 1950, nearly a fifth of the population lived in the nation’s 20 largest cities. In 2006, it was about one in ten. That’s why many American people say, “Big Cities Shrink as People Move South, West.”Between March 2005 and March 2007, 73.4 million Americans moved. Fifty-six percent of these moves were within the same country. Twenty percent were between counties but in the same state. Nineteen percent were moves to a different state. Some families even went abroad. Title: People on the 71参考答案阅读理解64----67 ACCD完形填空36－40 CBADB; 41－45 ABCCC; 46－50 DBADA; 51-55 DDAAB任务型阅读：71. move, 72. history, 73. increasing, 74.richer/wealthier, 75. Reasons, 76. majority, 77. related/linked, 78. for, 79. climate, 80. tendency/phenomenon/trend。

2020新课标高考语文二轮总复习专题限时训练：2-8 名篇名句默写 Word版含解析

[课时训练]限时练(三十)1．补写出下列句子中的空缺部分。

(1)王湾《次北固山下》中，“______________，______________”两句写拂晓行船的情景，作者无意说理，却在描写景物、节令之中，蕴含着一种自然的理趣。

(2)杜牧《阿房宫赋》中“________________，________________，______________”连用整齐的短句，写秦朝统治者大肆挥霍从六国搜刮来的珍宝，极不珍惜。

【答案】(1)海日生残夜江春入旧年(2)鼎铛玉石金块珠砾弃掷逦迤2．补写出下列句子中的空缺部分。

(1)苏轼《赤壁赋》中，“__________________，__________________”两句生动形象地描绘出月亮在夜空中缓慢移动的状态，逼真传神。

(2)辛弃疾《永遇乐·京口北固亭怀古》中，写古代英雄叱咤风云、驰骋疆场的名句是“______________，________________”。

(3)《荀子·劝学》中，“_____________，_____________”两句强调了整天空想不如片刻学习收获大的道理。

【答案】(1)月出于东山之上徘徊于斗牛之间(2)金戈铁马气吞万里如虎(3)吾尝终日而思矣不如须臾之所学也3．补写出下列句子中的空缺部分。

(1)周敦颐在《爱莲说》中用“________________”和“________________”分别表达对菊花和牡丹的看法。

(2)李白在《蜀道难》中，用禽、兽都不能越过蜀道中的高山来侧面烘托蜀道之难的两句诗是“__________________，__________________”。

(3)在《赤壁赋》中，苏轼感觉自己“浩浩乎”“飘飘乎”的具体原因是作者与客在“水光接天”的环境下“________________，________________”。

【答案】(1)花之隐逸者也花之富贵者也(2)黄鹤之飞尚不得过猿猱欲度愁攀援(3)纵一苇之所如凌万顷之茫然4．补写出下列句子中的空缺部分。

高三二轮复习限时训练(一)

高考二轮复习限时训练（一）（时间：60分钟）班级姓名得分一、填空题：本大题共12小题，每小题5分，共60分。

1、复数ii4321+-在复平面上对应的点位于第__ 象限. 2、命题“2,220x R x x ∃∈++≤”的否定是3、设{}{}=⋂+==∈==B A x y y x B R x x y y A 则,2|),(,,|2 4、已知x 、y 的取值如下表：从散点图分析，y 与x 线性相关，且回归方程为 0.95y x a =+，则a = 5、若椭圆的焦距长等于它的短轴长，则椭圆的离心率等于____ ____。

6、如果执行右面的程序框图，那么输出的S = 7、把函数4cos()3y x π=++1的图象向左平移ϕ个单位，所得的图象对应的函数为偶函数，则ϕ的最小正值为8、如果实数x ,y 满足x 2+y 2=1,则（1+xy ）(1－xy )的最小值为9、已知实数x ，y 满足条件5003x y x y x -+⎧⎪+⎨⎪⎩≥≥≤，i z x y =+（i 为虚数单位），则|12i |z -+的最小值是．10、一枚半径为1的硬币随机落在边长为3的正方形所在平面内，且硬币一定落在正方形内部或与正方形有公共点，则硬币与正方形没有公共点的概率是11、若函数f (x )=e x -2x-a 在R 上有两个零点，则实数a 的取值范围是12、设函数)0](,[,321)1ln()(2>-∈+-+=t t t x x e x x f x ，若函数的最大值是M ，最小值是m ，则M+m=二、解答题：本大题共2小题，共30分。

13、（本小题满分15分）在ABC ∆中，角A 、B 、C 的对边分别为,,a b c ，已知向量33(cos ,sin ),22A A m = (cos ,sin ),22A An =且满足m n +=（Ⅰ）求角A 的大小；（Ⅱ）若,b c +=试判断ABC ∆的形状。

14、（本小题满分15分）已知圆C ：224x y +=.（1）直线l 过点()1,2P ，且与圆C 交于A 、B 两点，若||AB =l 的方程;（2）过圆C 上一动点M 作平行于x 轴的直线m ，设m 与y 轴的交点为N ，若向量OQ OM ON =+，求动点Q 的轨迹方程，并说明此轨迹是什么曲线.高考二轮复习限时训练（一）1、三2、2,220.x R x x ∀∈++>3、∅4、2.6 5 6、25507、32π 8、43 9 10、 π+21111、()+∞-,2ln 2212、6 二、解答题： 13、（1）3A π=———————————————————7分（2）ABC ∆为直角三角形。

2016届高考英语二轮复习专项训练专题限时检测(4)时态和语态

专题限时检测(四)时态和语态(共3组，每组限时8分钟)[一模题组]1．(2015·宿迁高三一模)Everything he________ away from him before he returned to his hometown.A．took B．had takenC．had been taken D．had had been taken2．(2015·苏锡常镇第一次调研)Realizing this time next Sunday his girlfriend ________ a big dinner with him, Tom smiles happily.A．will be enjoying B．has enjoyedC．enjoys D．is enjoying3．(2015·常州高三调研)It made my little sister sad that her friend never, as he ________，came to take her to America.A．promised B．had promisedC．was promising D．has promised4．(2015·徐州高三一模)Listen, someone ________ closer to our room. If it’s the boss, that will be rather bad so let’s get down to our work right now！A．steps B．is steppingC．will step D．has stepped5．(2015·南京高三一模)Some so-called climate travelers ________ in one place for a few months and then move on to some other places as the weather changes.A．have stayed B．are stayingC．stay D．stayed6．(2015·泰州第一次调研)Since the recent food security related events, people ________ more and more attention to the quality and safety of food.A．are paying B．have been payingC．have paid D．were paying7．(2015·无锡高三调研)Over the past six years since Windows 7 ________，Microsoft has made its PC operating system far more powerful and user-friendly by packing it with smartphone-like features.A．has been released B．had been releasedC．was released D．is released8．(2015·镇江高三调研)Hurry up! By the time we get to the church, the marriage service________.A．had started B．will have startedC．has started D．must have started9．(2015·苏州高三一模)Over thousands of years, human beings ________ many ways to avoid risks and make life easier.A．had figured out B．are figuring outC．have figured out D．will figure out10．(2015·扬州高三一模)—You know this umbrella is mine.—If it’s yours, I hope you’ll excuse me — I ______ it up in a restaurant.A．picked B．have pickedC．had picked D．will pick11．(2015·连云港高三一模)—When did the computer crash?—This morning, while I ________ the reading materials downloaded from some websites.A．have sorted B．was sortingC．am sorting D．had sorted12．(2015·苏锡常镇第一次调研)—That must have been a terrible experience.—Yeah. I ________ in the damaged car, unable to move.A．was stuck B．have been stuckC．am stuck D．had been stuck13．(2015·南京师大附中一模)Large quantities of information, as well as some timely help ________ since the organization was built.A．has offered B．had been offeredC．have been offered D．is offered14．(2015·淮安第一次调研)Experiments on animals ________ long before the medicine was applied to patients.A．have conducted B．have been conductedC．had conducted D．had been conducted15．(2015·南京四校第一次联考)The flood has caused a lot of damage to that area and the figures of the missing ________ shortly.A．will be published B．have been publishedC．had been published D．are published[二模题组]1．(2015·南京高三二模)—Why ________ so early? The movie doesn’t start until seven.—I don’t want to be at the traffic there. It’s terrible during the rush hour.A．have you left B．do you leaveC．would you leave D．are you leaving2．(2015·无锡高三第二次调研)Snowden’s documents showed that the US and the UK ________ on just everyone, including the world leaders.A．have been spying B．would spyC．are spying D．had been spying3．(2015·盐城高三二模)—Are you still helping out in Mr Johnson’s pub?—Not since March. I ________ my own pub shortly after I set aside enough money.A．have opened B．would openC．opened D．had opened4．(2015·镇江高三第二次调研)Jack doesn’t smoke now, but he ________ for almost twenty years.A．was smoking B．had smokedC．has smoked D．smoked5．(2015·南通高三调研)Yesterday, my father was so lost in his thought that he didn’t realize he ________ the red light.A．ran B．was runningC．runs D．has run6．(2015·连云港高三二模)You’d better not call the manager between 7 and 8 this evening, for he ______ an important meeting then.A．will be having B．would haveC．will have D．will have had7．(2015·苏锡常镇第二次调研)I first met Mr. Li three years ago. He had just returned from abroad and ______ English in Senior One then.A．taught B．would teachC．was teaching D．had taught8．(2015·扬州高三二模)—Have you moved into your new house?—Not yet. It ________ at present.A．will be painted B．was paintedC．is being painted D．is painted9．(2015·南京、盐城高三二模)—What a heavy rain!—Yes. I ________ to take an umbrella with me, but I didn’t.A．had planned B．would planC．have planned D．will plan10．(2015·苏州高三调研)Oh, the telephone ______. Could you answer it since I am doing the dishes?A．rings B．has rungC．rang D．is ringing11．(2015·常州一中高三质检)This is not the first time that Ebola ________ out, but it is the largest one to date.A．has broken B．brokeC．breaks D．had broken12．(2015·宿迁一中高三模拟)By the end of last week, the plane ________ missing for over a month.A．had been reported B．had reportedC．will be reported D．will have reported13．(2015·扬州高三二模)Hurry up! We need to get to the top of the mountain before the sun ________ in the west.A．is sinking B．will sinkC．sank D．sinks14．(2015·苏北四市第二次联考)—What can I do for you, sir?—I ________ today, so I’d like to have my bill.A．am leaving B．leftC．will have left D．leave15．(2015·淮安高三第二次调研)—Have you heard of the big fire in Harbin on Jan. 2?—Yes. The firefighters ________ to find out how it began since then.A．tried B．had triedC．have been trying D．had been trying[押题题组]1．—I’ll be down in two minutes!—OK. I’ll wait until you ________ ready.A．will be B．areC．would be D．were2．She could have been in time for the interview, but her flight________.A．was delaying B．had been delayedC．has delayed D．was delayed3．—Have they got our car repaired?—I don’t know. But it ________ when I called them yesterday.A．would repair B．was repairedC．had repaired D．was being repaired4．—What a pity! I missed The Voice of China last night.—Don’t worry. It ________ again this weekend.A．broadcasts B．will be broadcastedC．is broadcasted D．will broadcast5．—Can I come over in an hour?—Sorry, I ________ the house.A．will clean B．am cleaningC．clean D．will be cleaning6．It is reported that his new book ________ by that company next year.A．will publish B．will be publishedC．was published D．has been published7．—You’ve left the light on.—Oh, so I have. ________ and turn it off.A．I go B．I’ve goneC．I’ll go D．I’m going8．Hurry up! Otherwise by the time we get to the church, the wedding ceremony ________.A．will have finished B．has finishedC．had finished D．must have finished9．—I wonder if Tom will go for an outing tomorrow.—Tom? Never! He ________ it.A．has hated B．hatedC．was hating D．hates10．The famous film star, as well as his wife and son is said to attend the party, but so far they ________.A．don’t turn up B．hadn’t turned upC．haven’t turned up D．didn’t turn up11．—Why didn’t you take the final exam yesterday? It was so important!—I’m terribly sorry. My mother got seriously injured and I ________ her in the hospital all the day.A．attend B．was attendingC．had attended D．have attended12．—Why are you still here! Everybody has gone to attend the lecture by the president.—Oh, I ________ about it!A．wasn’t informedB．hadn’t been informedC．haven’t informedD．didn’t inform13．—Do you know if Mr. and Mrs.Parker ________ to Florida for the coming winter?—Florida? Oh, never. They hate long journeys.A．have gone B．goC．will go D．have been going14．—It must have taken you quite a long time to check the e-mails that day, boss.—Right. All the e-mails ________ for weeks since I was ill in the hospital.A．haven’t been checked B．weren’t checkedC．hadn’t been checked D．haven’t checked15．—Mary, have you seen my newly-bought magazine?—I’m afraid that I ________ it away. I thought you would no longer need it.A．threw B．had thrownC．throw D．will throw答案[一模题组]1．选D句意：在他回到家乡之前，他曾经拥有的一切都已经从他身边被夺走。

新高三英语二轮复习限时训练(词汇语法填空完形七选五)06

一. 词汇语法巩固练习1.When there was a fire, I would investigate and determine if it was accidental or________ (purpose) set.2.To be honest, I really miss walking down the streets. . . the smell, the atmosphereand ________ (important), the places where I used to go to!3.The doors of the garden, like the windows, are also carved in different shapes tobring more vigor and elegance to the ________ (surround).4.I can't stop the ________ (pass) of time just as I can't end my memory of you. Iwish the light breeze would carry my best regards to you.5.It was the last thing that I expected, because people think of Kenya as a prettysafe, ________ (order) place where tourists go on holiday.6.Sometimes Mother nature's storms can be violent and ________ (destroy) butother times she can be very beautiful, like when flowers blossom.7.If the sealed jar had light and a steady temperature, there was ________ (theory)no reason why the lichens(地衣；苔藓) couldn't live until the sun dies.8.He snatched the mail form my hand, ________ (open) the mail and pointed to themail inside. “You were after this.”9.For over a decade the KindSpring user community has focused on inner________ (transform), while ________ (collect) changing the world with ________ (generous), gratitude and trust.10.When you read a book, you've probably noticed that a brand new book has arather special smell, which differs from ________ of an older book.11.Today, the forms of books have been changing ________ (drama) since the birthof eBooks. They might be convenient, ________ you can't give your copy to others as a present, and they don't smell as nice.12.Though it is 30 years ________ we last met, I still remember the scene ________we got separated on a rainy day.13.________ the fact that peer pressure is most commonly seen as a very negativeissue, it can ________ (see) positively in some situations.14.High school years are a large part in ________ (shape) the person you are goingto become. A school often provides education for you, and it can also be a place ________ you can develop relationships with many different people, join clubs, and participate in a ________ (vary) of different sports. These years can makeyou become a high school student ________ (fill) with many different emotions, including happiness, anger, sadness, envy, loneliness, stress, and a numerous amount more. This is also a time ________peer pressure is most commonly put upon a vast ________ (major) of teens.15.If you have a job, ________(devote) yourself to it and finally you’ll succeed.16.Now the popularity of pasta has been confirmed in a survey ________ places it asthe world’s favourite food ahead of meat, rice and pizza.17.He spent so many unforgettable days with them ________he was unwilling topart with them.18.The number of smokers, ________is reported, has dropped by 17 percent in justone year.19.Many experts hold the view that teachers’ development is ________ the key to abetter education lies.20.Golf is rapidly becoming more popular. Near some towns and cities new coursesare being built in ________was farmland.二. 七选五I am not sure how many books I have reread, but perhaps it is fewer than the average person. ___1___ The source material, though, is of course not.I used to take the same approach to books as I did to travel: don’t go to the same place twice. Life is too short. ___2___ Then I realized that the fact that life is short might work the other way around, too: if you know you enjoy something, or somewhere, then why not return?Recently I reread Joseph Heller’s Catch-22. I was inspired to do so when reminded of how he’d respond when people rudely asked him why he’d never wri tten anything as good: “Who has?” Catch-22 pretty much saved my life when I first read it. ___3___ I had dropped out of school twice, didn’t leave the house at all and didn’t have a life. It felt as though I hadn’t laughed in such a long time.___4___ It managed to take me out of the dark world, and though its themes are, of course, serious, its cleverness cheered me greatly. I related to its characters who are themselves trapped. I am now planning to reread the sort of books that inspired me in my own writing.I won’t take a break altogether from reading the most recent releases. I love the smell of new books fresh from the printers. ___5___A.Catch-22 had me laughing.B.My favourites are secondhand editions.C.There is discomfort in reading recently-released books.D.At that time I was an extremely depressed 17-year-old.E.For me, the pleasure of rereading is a newly discovered one.F.There is so much to read and so much to see and experience.G.However, I have determined to dip more frequently into the old ones三. 完形填空For one year, the Dannemiller family gave up buying any unnecessary purchases.In an effort to get back in touch with what they call their family mission, which includes “growing in faith together and serving others to create a world without ___1___”, parents Scott and Gabby Dannemiller decided to ___2___ spending money on things like toys, books, clothing, or anything that wasn’t a necessity or an experience.Overall, the family successfully ___3___ the plan. Though the experiment took place in 2013, the family ___4___ tries to live by the lessons they learned while cutting out unnecessary spending. “By focusing on experiences ___5___ purchases, we grew together in faith as a family, we were able to ___6___ others and we were able to give more of our time and treasure to people who really need it, ” Scott says.“My daughter’s birthday is next month, and she asked if we could go to visit her uncle’s farm and ride a horse, ___7___ just asking for a horse stuffed animal, ” he says. “Now we look at ___8___ and say ‘will that really add value to our life, or is it something we will just need to find space for and take care of?’ ”If you’re trying to teach your children to focus ___9___ on physical stuff, Scott says it’s helpful to tweak(稍微改进) your ___10___ when kids ask for things. “We used to say ‘that's too ___11___’, but that made our kids think OK, we need more money, and when we get more money we can have it, ” he says. “We ___12___ to ‘we don’t need that’, and that helped them understand.”When ___13___ spending, Scott says the most important thing is to focus not on what your family is giving up, but what it is gaining. “It’s not about what you're___14___,” he says. “The question should be, ‘What are we going to replace that with?’ Then, make sure you are adding something to your life that the people in your family ___15___. For us, that was time together.”1. A. need B. faith C. delay D. pity2. A. slow B. begin C. increase D. stop3. A. applied to B. subscribed to C. responded to D. stuck to4. A. even B. ever C. still D. just5. A. instead of B. in contrast to C. in parallel with D. regardless of6. A. treat B. serve C. please D. satisfy7. A. more than B. or else C. or rather D. rather than8. A. purchases B. possessions C. treasures D. earnings9. A. less B. occasionally C. frequently D. more10.A. appearance B. atmosphere C. language D. identity11.A. worthy B. cheap C. worthless D. expensive12.A. admitted B. referred C. shifted D. took13.A. cutting off B. cutting down C. cutting up D. cutting away14.A. lacking B. losing C. obtaining D. finding15.A. own B. preserve C. owe D. value四. 语篇填空AirCar is the latest generation flying car ____1____ transforms from road vehicle into air vehicle in less than 3 minutes. Useful for leisure and self-driving ____2____(journey), the vehicle can go from driving to lying mode with the click of a button. The fifth generation flying car designed by Professor Stefan Klein ____3____(complete) two flight tests at Piestany airport in Slovakia so far.____4____(weigh) 1,100kg, the two-seat AirCar can carry an additional load of 200kg per flight. ____5____(power) by a BMW 1.6L engine, the car-plane has an effective power output of 140HP. The estimated travel range of the vehicle is 1,000km and the flight ____6____(consume) is 18 liters (升) per hour. AirCar can transform from a ground-based vehicle to aircraft with its speed ____7____(reach) up to 200 km/h. But most importantly, the stability and controllability of the AirCar is ____8____(access) to any pilot.“With AirCar you will arrive at your destination ____9____ the trouble ofgetting a ride to airport and passing through commercial security. You can drive your AirCar to the golf course, the office, the shopping centre or your hotel and park ____10____ in a normal parking space,” said Anton Zajac, Klein Vision's co-founder, investor and pilot.一. 词汇语法巩固练习1.purposely2.most importantly/ more importantly3.surroundings4.passage5.orderly6.destructive7.theoretically8.opened9.transformation; collectively; generosity10.that11.dramatically; but12.since; where13.Despite; be seen14.shaping; where; variety; filled; when; majority15.devote16.that/which17.that18.as19.where20.what二. 七选五EFDAG三. 完形填空ADDCA BAAAC DCBBD四. 语篇填空1. that2. journeys3. has completed4. Weighing5. Powered6. consumption7. reaching8. accessible9. without 10. it。

超实用高考英语复习：填写板块限时模拟训练08 语法填空+应用文写作+读后续写(原卷版,含答题卡)

填写板块限时模拟训练08语法填空+应用文写作+读后续写时间：45分钟满分：55分Ⅰ.语法填空（共10小题，每小题1.5分，满分15分）（2022·河北正定中学）Did you grow up in one culture, your parents came from another, and you are now living in a ___36___ (total) different country? If so, then you are a third-culture kid.The term “third-culture kid” ___37___ (use) in the 1960s for the first time by Dr. Ruth. She first came across this phenomenon while ___38___ (research) North American children living in India. In general, third-culture kids benefit ___39___ their intercultural experience and they often reach excellent academic results.Yet many ___40___ (difficulty) may arise from this phenomenon. Third-culture kids may not be able to adapt ___41___ (they) completely to their new surroundings. Also, they often find it hard ___42___ (develop) new friendship. Additionally, for a third-culture kid, it is often ___43___ (easy) to move to a new country than to return to his homeland. For example, after living in Australia for many years, Louis finally returned to the country ___44___ she was born. She didn’t know anything about current TV shows ____45____ fashion trends. And she didn’t share the same values as other teens of her age.Ⅰ.写作（共两节，满分40分）第一节应用文写作（满分15分）（2022·浙江五校联考）假定你是李华，近日你校举办了以“中国传统文化之美”为主题的首届校园文化节。

高三化学二轮复习限时训练

小题训练（3）1、下列有关化学与生活、工业的叙述中，不正确的是（）A．工业生产玻璃、水泥、漂白粉及用铁矿石冶炼铁，均需要用石灰石为原料B．CO会与血红蛋白结合使人中毒；可将中毒病人放入高压氧仓解毒，其解毒原理符合平衡移动原理C．2011年5月份起，面粉中禁止添加CaO2、过氧化苯甲酰等增白剂，CaO2属于碱性氧化物，过氧化苯甲酰属于有机物D．固体煤经处理变为气体燃料后，可以减少SO2和烟尘的排放，且燃烧效率提高，有利于节能减排2、下列实验设计能完成或实验结论合理的（）A．鉴别溴蒸气和还是二氧化氮，可用湿润的碘化钾一淀粉试纸检验，观察试纸颜色的变化B．铝热剂溶于足量稀盐酸再滴加KSCN溶液，未出现血红色，铝热剂中一定不含铁的氧化物C．测氯水的pH，可用玻璃棒蘸取氯水点在pH试纸上，待其变色后和标准比色卡比较D．用新制氢氧化铜鉴别乙醇和丙三醇3、下列实验装置，试剂选用或操作正确的是（）A．除去NO中NO2B．铁制品表面镀锌C．稀释浓硫酸D．鉴定Fe3+4、X、Y、Z、M、W为五种短周期元素。

X、Y、Z是原子序数依次递增的同周期元素，且最外层电子数之和为15；X 与Z可形成XZ2分子；Y与M 形成的气态化合物在标准状况下的密度0.76g· L -1，W在短周期主族元素中原子半径最大。

下列说法正确的是()A．原子半径：W> Y> XB．元素X与M形成化合物的空间构型可以是正四面体型、直线型或平面型等C．将XZ2通入W单质与水反应后的溶液中，生成的盐一定只有一种D . Y元素的含氧酸都属于强酸5、下列说法正确的是()A．是苯的同系物B．等物质的量的乙烯与乙醇完全燃烧时，消耗相同状况下的氧气的体积相同C．沸点由低到高为：正戊烷、异戊烷、新戊烷D．CH3CH（CH3）CH（CH2CH3）CH2CHClCH3的名称为2－甲基－3－乙基－4－氯己烷6、化学中常用图像直观地描述化学反应的进程或结果。

高考二轮复习限时训练(六)

高考二轮复习限时训练（六）（时间：60分钟）班级姓名得分一、填空题（5分×12=60分）1．已知集合A=}41|{<<-x x ，B=}62|{<<x x ，则A ∩B= 。

2．函数）2x (log y a +=(a ＞0,a ≠1)的图象恒过定点P ，则P 点坐标为。

3．已知向量)4,3(-=a ，向量b 满足b ∥a ，且1||=b ，则b = 。

4．从[0，1]之间选出两个数，这两个数的平方和大于1的概率是。

5．在等比数列｛n a ｝中,若7944,1a a a ⋅==,则12a 的值是。

6．一几何体的三视图如下，它的体积为。

7．当3=x 时，下面算法输出的结果是。

8．在△OAB 中,(2cos ,2sin )O A αα= , (5cos ,5sin )O B ββ=,若5OA OB ⋅=- ,则O AB S ∆= .9．若关于x 的方程()233740tx t x +-+=的两个实根,αβ满足012αβ<<<<，实数t的取值范围是。

10．圆心在（2，－3）点，且被直线0832=-+y x 截得的弦长为34的圆的标准方程为11．在一次教师联欢会上，到会的女教师比男教师多12人，从这些教师中随机挑选一人表演节目若选到男教师的概率为209，则参加联欢会的教师共有人12．当(12)x ∈，时，不等式240x m x ++<恒成立，则m 的取值范围是．二、解答题（15分×2 =30分）13．在锐角三角形ABC 中，已知内角A 、B 、C 所对的边分别为a 、b 、c ，且t a n t a n (1t a n t a n )3A B A B -=+⋅． Read xIf x <10 Then y ←2x Elsey ←x 2 Print y第7题图（1）若ab b a c -+=222，求A 、B 、C 的大小；（2）已知向量(sin ,cos ),(cos ,sin ),|32|A A B B ==-求m n m n 的取值范围．14．如图，矩形A B C D 的两条对角线相交于点(20)M ，，A B 边所在直线的方程为360x y --=, 点(11)T -，在A D 边所在直线上．（I ）求A D 边所在直线的方程；（II ）求矩形ABCD 外接圆的方程；（III ）若动圆P 过点(20)N -，，且与矩形ABCD 的外接圆外切，求动圆P 的圆心的方程．南师大附校09高考二轮复习限时训练（六）参考答案一、填空题（5分×12=60分）1．}42|{<<x x 2．(－1，０) 3．（54,53-）或（54,53-） 4．41π- 5.4 6. 327．6 8.29．22,262 10．222(2)(3)5x y -++=11.120 12．（54,53-）或（54,53-）二、解答题13．解：由已知.22.20,2033)tan(,33tan tan 1tan tan ππππ<-<-∴<<<<=-∴=⋅+-B A B A B A BA BA 得.6π=-∴B A（I ）由已知.4,1253,6,.3,212cos 222ππππππ==⎪⎪⎪⎩⎪⎪⎪⎨⎧==-=++=∴=-+=B AC B A C B A C abcb a C 解得由得.3,4,125πππ===∴C B A （II ）|3m －2n |2=9 m 2+4n 2－12 m ·n =13－12（sin A cos B +cos A sin B ）=13－12sin(A +B )=13－12sin （2 B +6π）.∵△ABC 为锐角三角形，A －B =6π，∴C =π－A －B <2π，A =6π+B <2π..65622,36πππππ<+<<<∴B B ).1,21()62sin(∈+∴πB14．解:（I ）因为A B 边所在直线的方程为360x y --=，且A D 与A B 垂直，所以直线A D 的斜率为3-．又因为点(11)T -，在直线A D 上，所以A D 边所在直线的方程为13(1)y x -=-+．320x y ++=．（II ）由36032=0x y x y --=⎧⎨++⎩，解得点A 的坐标为(02)-，，因为矩形ABCD 两条对角线的交点为(20)M ，．所以M 为矩形ABCD 外接圆的圆心．又AM == 从而矩形ABCD 外接圆的方程为22(2)8x y -+=．（III ）因为动圆P 过点N ，所以P N 是该圆的半径，又因为动圆P 与圆M 外切，所以PM PN =+PM PN -=．故点P 的轨迹是以M N ，为焦点，实轴长为的双曲线的左支．因为实半轴长a =，半焦距2c =．所以虚半轴长b ==从而动圆P 的圆心的轨迹方程为221(22xyx -=≤．。

2020新课标高考数学(理)二轮总复习(课件+专题限时训练)专题7 高效解答客观题-2

专题限时训练建议用时：45分钟一、选择题1．命题“存在x0∈R,2x0≤0”的否定是()A．不存在x0∈R,2x0>0B．存在x0∈R,2x0>0C．对任意x∈R,2x≤0D．对任意x∈R,2x>0答案：D解析：本题主要考查全称命题与特称命题．由题意知,原命题的否定为“对任意x ∈R,2x>0”．2．下列命题中的假命题是()A．∀x∈R,e x>0B．∀x∈R,x2≥0C．∃x0∈R,sin x0＝2D．∃x0∈R,2x0>x20答案：C解析：本题考查命题真假的判定．∀x∈R,sin x≤1<2,所以C选项是假命题．3．(2019·中卫一模)命题“若a2＋b2＝0,则a＝0且b＝0”的逆否命题是() A．若a2＋b2≠0,则a≠0且b≠0”B．若a2＋b2≠0,则a≠0或b≠0”C．若a＝0且b＝0,则a2＋b2≠0D．若a≠0或b≠0,则a2＋b2≠0答案：D解析：命题“若a2＋b2＝0,则a＝0且b＝0”的逆否命题是“若a≠0或b≠0,则a2＋b2≠0”．4．已知p：x≤1；q：x2－x>0,则p是¬q的()A．充分不必要条件B．必要不充分条件C．充要条件D．既不充分也不必要条件答案：B解析：本题考查充要条件的判定．依题意,¬q：x2－x≤0,即0≤x≤1；由x≤1不能得知0≤x≤1；反过来,由0≤x≤1可得x≤1.因此,p是¬q成立的必要不充分条件．5．(2019·绵阳模拟)已知命题p：∃x0∈R,使得lgcos x0＞0；命题q：∀x＜0,3x＞0,则下列命题为真命题的是()A．p∧q B．p∨¬qC．¬p∧¬q D．p∨q答案：D解析：命题p：∃x0∈R,使得lgcos x0＞0,∵－1≤cos x≤1,∴lgcos x≤0,∴命题p为假命题,命题q：∀x＜0,3x＞0,是真命题,∴p∧q为假命题,p∨¬q为假命题,¬p∧¬q为假命题,p∨q为真命题．6．若“0<x<1”是“(x－a)[x－(a＋2)]≤0”的充分不必要条件,则实数a的取值范围是()A．(－∞,0]∪[1,＋∞)B．(－1,0)C．[－1,0]D．(－∞,－1)∪(0,＋∞)答案：C解析：(x－a)[x－(a＋2)]≤0⇒a≤x≤a＋2,由集合的包含关系知⎩⎪⎨⎪⎧a ≤0，a ＋2≥1⇒a ∈[－1,0]． 7．已知命题p ：∀x >0,x ＋4x ≥4；命题q ：∃x 0∈(0,＋∞),2x 0＝12.则下列判断正确的是( )A ．p 是假命题B ．q 是真命题C ．p ∧¬q 是真命题D ．¬p ∧q 是真命题答案：C解析：因为当x >0时,x ＋4x ≥2x ·4x ＝4,当且仅当x ＝2时等号成立,所以p 是真命题,当x 0>0时,2x 0>1,所以q 是假命题,所以p ∧¬q 是真命题,¬p ∧q 是假命题．8．若x ,y ∈R ,则x >y 的一个充分不必要条件是( )A ．|x |>|y |B ．x 2>y 2 C.x >yD ．x 3>y 3答案：C解析：本题考查充要条件的判断．由|x |>|y |,x 2>y 2未必能推出x >y ,排除A,B ；由x >y 可推出x >y ,反之,未必成立,而x 3>y 3是x >y 的充要条件．9．“a ≤－2”是“函数f (x )＝|x －a |在[－1,＋∞)上单调递增”的( )A ．充分不必要条件B ．必要不充分条件C ．充要条件D ．既不充分也不必要条件答案：A解析：结合图象可知函数f (x )＝|x －a |在[a ,＋∞)上单调递增,易知当a ≤－2时,函数f (x )＝|x －a |在[－1,＋∞)上单调递增,但反之不一定成立．10．(2019·南昌二模)已知函数f (x )＝ax 2＋x ＋a ,命题p ：∃x 0∈R ,f (x 0)＝0,若p 为假命题,则实数a 的取值范围是( )A.⎣⎢⎡⎦⎥⎤－12，12B.⎝ ⎛⎭⎪⎫－12，12 C.⎝ ⎛⎭⎪⎫－∞，－12∪⎝ ⎛⎭⎪⎫12，＋∞ D.⎝ ⎛⎦⎥⎤－∞，－12∪⎣⎢⎡⎭⎪⎫12，＋∞ 答案：C解析：因为p 为假命题,所以¬p 为真命题,即∀x ∈R ,f (x )≠0,故Δ＝1－4a 2＜0,解得a >12或a <－12.11．下列命题正确的个数是( )①命题“∃x 0∈R ,x 20＋1>3x 0”的否定是“∀x ∈R ,x 2＋1≤3x ”；②“函数f (x )＝cos 2ax －sin 2ax 的最小正周期为π”是“a ＝1”的必要不充分条件；③x 2＋2x ≥ax 在x ∈[1,2]上恒成立⇔(x 2＋2x )min ≥(ax )max 在x ∈[1,2]上恒成立； ④“平面向量a 与b 的夹角是钝角”的充要条件是“a ·b <0”．A ．1B ．2C ．3D ．4答案：B解析：易知①正确；因为f (x )＝cos 2ax ,所以2π|2a |＝π,即a ＝±1,因此②正确；因为x 2＋2x ≥ax 在x ∈[1,2]上恒成立⇒a ≤x ＋2在x ∈[1,2]上恒成立⇒a ≤(x ＋2)min ,x ∈[1,2],因此③不正确；因为钝角不包含180°,而由a ·b ＜0时向量夹角包含180°,因此“平面向量a 与b 的夹角是钝角”的充要条件是“a ·b ＜0且a 与b 不反向”,故④不正确．12．(2019·珠海二模)“－1≤x ＋y ≤1且－1≤x －y ≤1”是“x 2＋y 2≤1”的( )A ．充分非必要条件B ．必要非充分条件C ．充要条件D ．既不充分也不必要条件答案：A解析：作出不等式组对应的平面区域如图．则“－1≤x＋y≤1且－1≤x－y≤1对应的区域在单位圆内,则“－1≤x＋y≤1且－1≤x－y≤1”是“x2＋y2≤1”的充分不必要条件．二、填空题13．已知命题p：∃x∈R,sin x>a,若¬p是真命题,则实数a的取值范围为__________．答案：a≥1解析：依题意得,∀x∈R,sin x≤a恒成立,于是有a≥1.14．(2019春·思明区校级月考)命题p：|x|＞1；命题q：x＜m,若¬p是¬q的充分不必要条件,则实数m的取值范围为__________．答案：(－∞,－1]解析：由|x|＞1得x＞1或x＜－1,若¬p是¬q的充分不必要条件,则q是p的充分不必要条件,即m≤1,即实数m的取值范围是(－∞,－1]．15．(2019春·西湖区校级月考)命题p：若直线与抛物线有且只有一个公共点,则直线与抛物线相切．命题p是__________(真,假)命题,命题p的否命题是__________(真,假)命题．答案：假真解析：当直线和抛物线的对称轴平行时,满足只有一个交点,但此时直线和抛物线是相交关系,即命题p是假命题．命题p的逆命题为：若直线与抛物线相切,则直线与抛物线有且只有一个公共点,正确．命题的否命题和逆命题互为逆否命题,则命题的否命题为真命题．16．已知命题p：∃x0∈R,mx20＋2≤0；命题q：∀x∈R,x2－2mx＋1>0,若p∨q为假命题,则实数m的取值范围是________．答案：[1,＋∞)解析：因为p∨q是假命题,所以命题p和q都是假命题．由命题p：∃x0∈R,mx20＋2≤0为假命题知,¬p：∀x∈R,mx2＋2＞0为真命题,所以m≥0.①由命题q：∀x∈R,x2－2mx＋1＞0为假命题知,¬q：∃x0∈R,x20－2mx0＋1≤0为真命题,所以Δ＝(－2m)2－4≥0⇒m2≥1⇒m≤－1或m≥1.②由①和②得m≥1.。

无锡新领航教育特供(课程标准卷地区专用)2013高英语二轮复习专题限时训练 8

小升初中高考高二会考艺考生文化课一对一辅导 /wxxlhjy QQ:1571710901 无锡新领航教育特供专题限时训练(二十一) [记叙文型完形填空(三)](限时：30分钟)(一)It was lunchtime and I walked into a small branch office on the West Side. I had come to __1__ a checking account. The only officer on __2__ was a fortyish black man, standing __3__ a small counter from a young white boy who was wearing a Vnecked sweater. I thought I was especially __4__ of the boy because he looked more like a kid from a prep school than a __5__ in a West Side bank. The boy continued to __6__ my attention because of what happened next. He was holding an open savingsaccount book and __7__ an expression of disappointment. “But I don't understand. I opened the account myself, so why can't I __8__ any money ？” the boy said, his voice breakin g.“I know it is, but those are the rules. I've already explained to you that a fourteenyearold is not __9__ to withdraw money without a letter from his parents ，” the officer explained patiently.Suddenly I noticed the account had a series of small deposits and withdraws. Then I questioned the officer, “How do you __10__ that? Why did you let him withdraw money before, but not now ？” He looked __11__. “Because the tellers were not aware of his age before and now they are. It's really very __12__.” I turned to the boy with a shrug. “You're really getting __13__，” I said. “You ought to get your parents to come here and __14__.” The boy looked destroyed. __15__， he put his savings book in a rearpocket and walked out of the bank.The offic er turned to me. “You know，” he said, “you really shouldn't have got __16__.” I couldn't believe what this idiot was saying. “We were __17__ this morning that some neighborhood bullies have been shaking down (敲诈) this boy for more than a month. The other guy was __18__ him to take money out every week and hand it over. The poor kid was __19__ too scared to tell anyone. Anyway, the police are on the case and they'll probably make a(n) __20__ today.”“You mean there is no rule about being to o young to withdraw money from a savings account ？”“Not that I ever heard of. Now, sir, what can we do for you？”1．A.make B ．openC ．buyD ．choose2．A.duty B ．boardC ．displayD ．show3．A.on B ．afterC ．overD ．across4．A.sure B ．proudC ．awareD ．afraid。

(全国卷)高考英语二轮复习强化技能限时训练(四)语法填空(无提示词类试题)阅读理解阅读填句-人教版

强化技能限时训练(四)语法填空(无提示词类试题)+阅读理解+阅读填句(限时35分钟)Ⅰ.语法填空( A )1. I didn’t become a serious climber until the fifth grade, I went up to rescue a kite that was stuck in the branches of a tree.2. I can send a message to Jane whenever I want to and gets there almost in a second.3. I think impresses me about his painting is the colors he uses.4. A company profits from home markets are declining may seek opportunities abroad.5. Because of my poor memory,all you told me has been forgotten.6. With his work completed,the businessman stepped back to his seat,feeling pleased he wasa man of action.7. Many students are doing sports on the playground.Some are playing basketball; some are playing volleyball; are playing football.8. So Nick called to his son,“Go to the village and buy some salt,but pay a fair price for it; neither too much too little.〞9. Just we students need help most,we can’t afford the time to get it.10. I got up late and went breakfast.Right now I could eat a horse.答案与剖析:1.when 此题考查关系副词的用法。

高考二轮复习限时训练(四)

高考二轮复习限时训练（四）（时间：60分钟）班级姓名得分一．填空题(每小题5分共60分，请将答案直填入答题纸中的相应空档内) 1.设集合A={x | y=ln （1－x ）}，集合B={y | y=x 2}，则A ∩B = .2.函数)3(log 5.0x y -=的定义域是___ _ ___.3.方程x x 28lg -=的根Z k k k x ∈+∈),1,(，则=k .4.为了得到函数y =2sin(63π+x ),x ∈R 的图像，只需把函数y =2sin x , x ∈R 的图像上所有的点_________________________ ___________________________.5. 在△ABC 中,已知120,3,5A b c === ,则sin sin B C +的值为．6.设数列{}n a 的首项127,5a a =-=，且满足22()n n a a n N ++=+∈，则13518a a a a ++++ =______ ______.7.已知tan()3πα-=则 22sin cos 3cos 2sin αααα=- . 8.给出四个命题，则其中正确命题的序号为_____ _____. ①存在一个△ABC ，使得sin A +cos A =－1; ②△ABC 中,A ＞B 的充要条件为sin A ＞sin B ; ③直线x =8π是函数y =sin(2x +45π)图象的一条对称轴；④△ABC 中，若sin2A =sin2B ,则△ABC 一定是等腰三角形.9.已知△ABC 中，AB ＝1，BC ＝2，则角C 的取值范围是___ _____.10.一蜘蛛沿正北方向爬行x cm 捕捉到一只小虫，然后向右转105︒，爬行10cm 捕捉到另一只小虫，这时它向右转135︒爬行回它的出发点，那么x =___ __.11.已知]4,1[,2log )(2∈+=x x x f ，则函数3)()]([)(22++=x f x f x F 的最大值为__12.若数列}{n a 满足12 (01),1 (1).n n n n n a a a a a +≤≤⎧=⎨->⎩且167a =,则2008a =_____ _____.二、解答题（解答应写出文字说明、证明过程或演算步骤．共30分）13（15分）.设命题p ：函数3()()2x f x a R =-是上的减函数，命题q ：函数2()43[0,]f x x x a =-+在上的值域为[1,3],""p q -若且为假命题，""p q 或为真命题，求a 的取值范围14（15分）．已知函数()()⎪⎭⎫⎝⎛<<>>++=20,00,A 1cos 2πϕωϕωx A x f 的最大值为3，()x f 的图像的相邻两对称轴间的距离为2，在Y 轴上的截距为2.（Ⅰ）求函数()x f 的解析式；（Ⅱ）设数列()n n S n f a ,=为其前n 项和，求100S .高考二轮复习限时训练（四）参考答案 1.)1,0[； 2.)3,2[； 3．(3,4)x ∈；4.向左平移6π个单位长度，再把所得各点的横坐标伸长到原来的3倍（纵坐标不变） 5.6.126；9. 0＜C ≤π6 ； 11.16 ； 12.5713解：33501222a a <-<<<得...(3分） 2()(2)1,[0,]24,...(10),2 4 (14)f x x a a a a a =--≤≤∴<<≤≤<<≤≤ 在上的值域为[-1,3]得2a 4...(6分)p 且q 为假,p 或q 为真,得p,q 中一真一假...(8分)3若p 真q 假得,2535若p 假q 真得,分综上或分22214.解：（Ⅰ）()()2122cos 2A x A x f +++=ϕω ，依题意 2A,3212=∴=++AA 又 4T , 22==得T ，4 422πωωπ==∴ ()222cos +⎪⎭⎫⎝⎛+=∴ϕπx x f . 令 x=0,得 22 20, 222cos πϕπϕϕ=∴<<=+又所以，函数()x f 的解析式为 () 2sin 2⎪⎭⎫⎝⎛-=x x f π （Ⅱ）由() 2sin 2⎪⎭⎫⎝⎛-=x x f π 知() 2sin 2⎪⎭⎫ ⎝⎛-==n n f a n π当n 为偶数时，()2=n f当n 为奇数时，()()()()()()499977531=+==+=+f f f f f f200254502 100=⨯+⨯=∴S。

2023届高三英语二轮复习限时训练(词汇+语法填空+完形+七选五+作文句式)02

一. 词汇语法巩固练习1.Indeed, as time speeds by, I've had some of my most ____________ (memory)experiences working for CT, and made lifelong friends along the way.2.He often complains that the results of machine translation are usually in an____________ (nature) form of language and sometimes just plain weird.3.It is often believed however, that competition and cooperation are in____________ (oppose) to each other.4.He is well qualified for the job, but he does lack ____________ (person) (= he isa boring person).5.Being a great team player depends on your comfortable ____________(participate) in every process of such a team, including knowledge exchange.6.One of my business partners has many interesting new ideas, but he's a little____________ (practice), and often they don't hold water.7.This was a ____________ (predict) reaction, given the bitter hostility between thetwo countries.8.Then, my friends, I recommend we rest and get ourselves ready to move quickly.When war comes, we cannot be caught ____________ (prepare).9.Giving a man a single fish can only cope with his meal. But if you taught him theskill of fishing, it would be ____________ (profit) to him for lifetime.10.The best remedy is either to limit the use of the offending substance or to takeextra precautions, like wearing ____________ (protect) clothing.11.You could ____________ (reason) argue that the store should replace thesegoods.ck of exercise is also a risk factor for heart disease but it's ____________(relate) small when compared with the others.13.He received the award in recognition ____________ his success over the pastyear.14.This is ____________ my father has taught me—to always face difficulties andhope for the best.15.While they are rare north of 88°, there is evidence ____________ they range allthe way across the Arctic, and as far south as James Bay in Canada.16.My uncle is the owner of a restaurant close to ____________ I live.17.I soon realized ____________ my mom's greatest strength was taking care ofthose in need. That's ____________ I wanted to become a doctor.18.I don't remember ____________ it first started annoying me—her hands pushingmy hair that way. Finally, one night, I shouted at her，“Don't do that anymore—your hands are too rough！”19.When we got a call ____________ (say) she was shortlisted, we thought it was ajoke.20.Modern methods of tracking polar bear populations have been employed onlysince the mid1980s, and are expensive ____________ (perform) consistently over a large area.二. 根据句意或提示完成句子1. 我写这封信是想分享我对这个问题的看法，我认为可能会对你有帮助。

高考英语二轮复习强化技能限时训练语法填空(有提示词类试题)阅读理解

手惰市安逸阳光实验学校强化技能限时训练(二)语法填空(有提示词类试题)+阅读理解(限时30分钟)Ⅰ.语法填空( A )1. She was put under house arrest two years ago but remained a powerful (symbolic) in last year’s election.2. She wished that he was as easy (please) as her mother,who was always delighted with perfume.3.As time went on,the old man’s health is getting from bad to (bad).4.The (tall) of the two girls is the girl I always talk about with you.5.Only (environment) problems are discussed at the meeting.6.It is a well-known fact that smoking is (harm) to our health.7.As we all know,English is (wide) used in our daily life.8. Mary felt (please),because there were many empty seats in the room.9. What was so (impress)about Jasmine Westland’s victory was that she came first in the marathon bare-footed.10. She turned off her phone and (rejoin) them at the table. 答案及剖析:1.symbol 本题考查派生词的用法。

《名师伴你行》2022高考数学(理)二轮复习检测：专题限时训练6导数的综合应用 Word版含答案

专题限时训练(六) 导数的综合应用(时间：45分钟分数：80分) 一、选择题(每小题5分，共25分)1．(2022·江西卷)在同始终角坐标系中，函数y ＝ax 2－x ＋a2与y ＝a 2x 3－2ax 2＋x ＋a (a ∈R )的图象不行能是( )答案：B解析：令a ＝0，则函数y ＝ax 2－x ＋a2与y ＝a 2x 3－2ax 2＋x ＋a 分别为y ＝－x与y ＝x ，对应的图象是选项D 中的图象．记f (x )＝ax 2－x ＋a2，g (x )＝ a 2x 3 －2ax 2＋x ＋a ，取a ＝12，则g (0)>f (0)>0.而f (x )＝12x 2－x ＋14＝12(x －1)2－14，令g ′(x )＝0，得x ＝23或x ＝2，易知g (x )在区间⎝ ⎛⎭⎪⎫－∞，23和(2，＋∞)上单调递增，在区间⎝ ⎛⎭⎪⎫23，2上单调递减，所以g (x )的微小值为g (2)＝⎝ ⎛⎭⎪⎫122×23－2×12×22＋2＋12＝12，又f (2)＝12×22－2＋14＝14，所以g (2)>f (2)，所以选项A 中的图象有可能取a ＝2，则g (0)>f (0)>0，令g ′(x )＝0，得x ＝16或x ＝12，易知g (x )在区间⎝ ⎛⎭⎪⎫－∞，16和⎝ ⎛⎭⎪⎫12，＋∞上单调递增，在区间⎝ ⎛⎭⎪⎫16，12上单调递减，所以g (x )的微小值为g ⎝ ⎛⎭⎪⎫12＝4×⎝ ⎛⎭⎪⎫123－4×⎝ ⎛⎭⎪⎫122＋12＋2＝2，又f (x )＝2x 2－x ＋1>0，f ⎝ ⎛⎭⎪⎫12＝2×⎝ ⎛⎭⎪⎫122－12＋1＝1，所以g ⎝ ⎛⎭⎪⎫12>f ⎝ ⎛⎭⎪⎫12，所以选项C 中的图象有可能，利用排解法选B.2．(2021·洛阳模拟)设a >0，b >0，e 是自然对数的底数( ) A ．若e a ＋2a ＝e b ＋3b ，则a >b B ．若e a ＋2a ＝e b ＋3b ，则a <b C ．若e a －2a ＝e b －3b ，则a >b D ．若e a －2a ＝e b －3b ，则a <b 答案：A解析：由e a ＋2a ＝e b ＋3b ，有e a ＋3a >e b ＋3b ，令函数f (x )＝e x ＋3x ，则f (x )在(0，＋∞)上单调递增，由于f (a )>f (b )，所以a >b ，A 正确，B 错误；由e a －2a ＝e b －3b ，有e a －2a <e b －2b ，令函数f (x )＝e x －2x ，则f ′(x )＝e x －2，函数f (x )＝e x －2x 在(0，ln 2)上单调递减，在(ln 2，＋∞)上单调递增，当a ，b ∈(0，ln 2)时，由f (a )<f (b )，得a >b ，当a ，b ∈(ln 2，＋∞)时，由f (a )<f (b )得a <b ，故C ，D 错误．3．(2021·甘肃兰州诊断)已知定义在R 上的可导函数f (x )的导函数为f ′(x )，若对于任意实数x ，有f (x )>f ′(x )，且y ＝f (x )－1为奇函数，则不等式f (x )<e x 的解集为( )A ．(－∞，0)B ．(0，＋∞)C ．(－∞，e 4)D ．(e 4，＋∞)答案：B解析：由于y ＝f (x )－1为奇函数，且定义域为R ，所以f (0)－1＝0，得f (0)＝1，设h (x )＝f (x )e x ，则h ′(x )＝e x [f ′(x )－f (x )](e x )2，由于f (x )>f ′(x )，所以h ′(x )<0，所以函数h (x )是R 上的减函数，所以不等式f (x )<e x 等价于f (x )e x <1＝f (0)e 0，所以x >0，故选B.4．(2021·河北唐山模拟)直线y ＝a 分别与直线y ＝2(x ＋1)，曲线y ＝x ＋ln x 交于点A ，B ，则|AB |的最小值为( )A ．3B ．2 C.324 D.32答案：D解析：解方程2(x ＋1)＝a ，得x ＝a2－1. 设方程x ＋ln x ＝a 的根为t (t >0)，则t ＋ln t ＝a ，则|AB |＝⎪⎪⎪⎪⎪⎪t －a 2＋1＝⎪⎪⎪⎪⎪⎪⎪⎪t －t ＋ln t 2＋1 ＝⎪⎪⎪⎪⎪⎪t 2－ln t 2＋1. 设g (t )＝t 2－ln t2＋1(t >0)，则g ′(t )＝12－12t ＝t －12t (t >0)，令g ′(t )＝0，得t ＝1.当t ∈(0,1)时，g ′(t )<0；当t ∈(1，＋∞)时，g ′(t )>0，所以g (t )min ＝g (1)＝32，所以|AB |≥32，所以|AB |的最小值为32.5．设D 是函数y ＝f (x )定义域内的一个区间，若存在x 0∈D ，使f (x 0)＝－x 0，则称x 0是f (x )的一个“次不动点”，也称f (x )在区间D 上存在“次不动点”，若函数f (x )＝ax 2－3x －a ＋52在区间[1,4]上存在“次不动点”，则实数a 的取值范围是( )A ．(－∞，0)B.⎝ ⎛⎭⎪⎫0，12C.⎣⎢⎡⎭⎪⎫12，＋∞ D.⎝⎛⎦⎥⎤－∞，12 答案：D解析：设g (x )＝f (x )＋x ，依题意，存在x ∈[1,4]，使 g (x )＝f (x )＋x ＝ax 2－2x －a ＋52＝0.当x ＝1时，g (1)＝12≠0；当x ≠1时，由ax 2－2x －a ＋52＝0，得a ＝4x －52(x 2－1).记h (x )＝4x －52(x 2－1)(1<x ≤4)，则由h ′(x )＝－2x 2＋5x －2(x 2－1)2＝0得x ＝2或x ＝12(舍去)．当x ∈(1,2)时，h ′(x )>0；当x ∈(2,4)时，h ′(x )<0，即函数h (x )在(1,2)上是增函数，在(2,4)上是减函数，因此当x ＝2时，h (x )取得最大值，最大值是h (2)＝12，故满足题意的实数a 的取值范围是⎝ ⎛⎦⎥⎤－∞，12，故选D. 二、填空题(每小题5分，共15分)6．设f (x )是定义在R 上的奇函数，且f (2)＝0，当x >0时，有xf ′(x )－f (x )x 2<0恒成立，则不等式x 2f (x )>0的解集是________．答案：(－∞，－2)∪(0,2)解析：当x >0时，有xf ′(x )－f (x )x 2<0，则⎣⎢⎡⎦⎥⎤f (x )x ′<0，f (x )x 在x >0时递减，x 2f (x )>0化为x 3·f (x )x >0⇒f (x )x >0，f (2)＝0，画出y ＝f (x )x 在x >0时的示意图如图所示，由图知0<x <2. 同理由f (x )是奇函数，则y ＝f (x )x 是偶函数，在x <0时，y ＝f (x )x 递增，x 2f (x )>0化为x 3·f (x )x >0⇒f (x )x <0，f (－2)＝0，所以x <－2.综上所述，x 的取值范围是(－∞，－2)∪(0,2)．7．已知函数f (x )＝ax ＋ln x ，g (x )＝x 2－2x ＋2.若对任意x 1∈(0，＋∞)，存在x 2∈[0,1]，使得f (x 1)<g (x 2)，则a 的取值范围是________．答案：⎝⎛⎭⎪⎫－∞，－1e 3解析：只需满足f (x 1)max <g (x 2)max ，x 1∈(0，＋∞)，x 2∈[0,1]．由于g (x 2)max ＝2，f ′(x )＝a ＋1x ＝ax ＋1x (x >0)．①当a ≥0时，f ′(x )>0，f (x )在(0，＋∞)上单调递增，值域为R ，故不符合题意．②当a <0时，由f ′(x )＝0，得x ＝－1a .所以，函数f (x )的单调递增区间为⎝ ⎛⎭⎪⎫0，－1a ，单调递减区间为⎝ ⎛⎭⎪⎫－1a ，＋∞. 故f (x )的极大值即为最大值，所以f (x 1)max ＝f ⎝ ⎛⎭⎪⎫－1a ＝－1＋ln ⎝ ⎛⎭⎪⎪⎫1－a ＝－1－ln(－a )，所以－1－ln(－a )<2，所以a <－1e 3.8．(2021·郑州质检)设函数f (x )是定义在(－∞，0)上的可导函数，其导函数为f ′(x )，且有2f (x )＋xf ′(x )>x 2，则不等式(x ＋2 014)2f (x ＋2 014)－4f (－2)>0的解集为________．答案：{x |x <－2 016}解析：由2f (x )＋xf ′(x )>x 2，x <0，得2xf (x )＋x 2f ′(x )<x 3，∴[x 2f (x )]′<x 3<0.令F (x )＝x 2f (x )(x <0)，则F ′(x )<0(x <0)，即F (x )在(－∞，0)上是减函数，由于F (x ＋2 014)＝(x ＋2 014)2f (x ＋2 014)，F (－2)＝4f (－2)，所以不等式(x ＋2 014)2f (x ＋2 014)－4f (－2)>0，即为F (x ＋2 014)－F (－2)>0，即F (x ＋2 014)>f (－2)，又由于F (x )在(－∞，0)上是减函数，所以x ＋2 014<－2， ∴x <－2 016.三、解答题(9题12分，10题、11题每题14分，共40分) 9．(2021·海淀模拟)已知函数f (x )＝(x －α)sin x ＋cos x ，x ∈(0，π)． (1)当α＝π2时，求函数f (x )的值域； (2)当α>π2时，求函数f (x )的单调区间．解：(1)当α＝π2时，f (x )＝⎝ ⎛⎭⎪⎫x －π2sin x ＋cos x ，x ∈(0，π)，f ′(x )＝⎝ ⎛⎭⎪⎫x －π2cos x ，由f ′(x )＝0，解得x ＝π2. f (x )，f ′(x )的状况如下：所以函数f (x )的值域为(－1,1)． (2)f ′(x )＝(x －α)cos x ，当π2<α<π时，f (x )，f ′(x )的状况如下：所以函数f (x )的单调增区间为⎝⎛⎭⎪⎫π2，α，单调减区间为⎝⎛⎭⎪⎫0，π2和(α，π)． 10.(2021·新课标全国卷Ⅰ)已知函数f (x )＝x 3＋ax ＋14，g (x )＝－ln x . (1)当a 为何值时，x 轴为曲线y ＝f (x )的切线；(2)用min{m ，n }表示m ，n 中的最小值，设函数h (x )＝min{f (x )，g (x )}(x ＞0)，争辩h (x )零点的个数．解：(1)设曲线y ＝f (x )与x 轴相切于点(x 0,0)，则f (x 0)＝0，f ′(x 0)＝0，即⎩⎨⎧x 30＋ax 0＋14＝0，3x 20＋a ＝0，解得⎩⎪⎨⎪⎧x 0＝12，a ＝－34.因此，当a ＝－34时，x 轴为曲线y ＝f (x )的切线．(2)当x ∈(1，＋∞)时，g (x )＝－ln x ＜0，从而h (x )＝min{f (x )，g (x )}≤g (x )＜0，故h (x )在(1，＋∞)上无零点．当x ＝1时，若a ≥－54，则f (1)＝a ＋54≥0，h (1)＝min{f (1)，g (1)}＝g (1)＝0，故x ＝1是h (x )的零点；若a ＜－54，则f (1)＜0，h (1)＝min{f (1)，g (1)}＝f (1)＜0，故x ＝1不是h (x )的零点．当x ∈(0,1)时，g (x )＝－ln x ＞0，所以只需考虑f (x )在(0,1)上的零点个数． ①若a ≤－3或a ≥0，则f ′(x )＝3x 2＋a 在(0,1)上无零点，故f (x )在(0,1)上单调．而f (0)＝14，f (1)＝a ＋54，所以当a ≤－3时，f (x )在(0,1)上有一个零点；当a ≥0时，f (x )在(0,1)上没有零点．②若－3＜a ＜0，则f (x )在⎝⎛⎭⎪⎫0，－a 3上单调递减，在⎝⎛⎭⎪⎫－a 3，1上单调递增，故在(0,1)上，当x ＝－a3时，f (x )取得最小值，最小值为f ⎝⎛⎭⎪⎫－a 3＝2a 3－a 3＋14.a ．若f ⎝⎛⎭⎪⎫－a 3＞0，即－34＜a ＜0，则f (x )在(0,1)上无零点． b ．若f ⎝⎛⎭⎪⎫－a 3＝0，即a ＝－34，则f (x )在(0,1)上有唯一零点． c ．若f ⎝⎛⎭⎪⎫－a 3＜0，即－3＜a ＜－34，由于f (0)＝14，f (1)＝a ＋54，所以当－54＜a ＜－34时，f (x )在(0,1)上有两个零点；当－3＜a ≤－54时，f (x )在(0,1)上有一个零点．综上，当a ＞－34或a ＜－54时，h (x )有一个零点；当a ＝－34或a ＝－54时，h (x )有两个零点；当－54＜a ＜－34时，h (x )有三个零点．11．(2021·天津卷)已知函数f (x )＝nx －x n ，x ∈R ，其中n ∈N *，且n ≥2. (1)争辩f (x )的单调性；(2)设曲线y ＝f (x )与x 轴正半轴的交点为P ，曲线在点P 处的切线方程为y ＝g (x )，求证：对于任意的正实数x ，都有f (x )≤g (x )；(3)若关于x 的方程f (x )＝a (a 为实数)有两个正实数根x 1，x 2，求证：|x 2－x 1|＜a1－n＋2. 解：(1)由f (x )＝nx －x n ，可得f ′(x )＝n －nx n －1＝n (1－x n －1)，其中n ∈N *，且n ≥2. 下面分两种状况争辩： ①当n 为奇数时，令f ′(x )＝0，解得x ＝1或x ＝－1.当x 变化时，f ′(x )，f (x )的变化状况如下表：所以，f (x ) ②当n 为偶数时，当f ′(x )＞0，即x ＜1时，函数f (x )单调递增；当f ′(x )＜0，即x ＞1时，函数f (x )单调递减．所以，f(x)在(－∞，1)上单调递增，在(1，＋∞)上单调递减．(2)证明：设点P的坐标为(x0,0)，则x0＝n 1n－1，f′(x0)＝n－n2.曲线y＝f(x)在点P处的切线方程为y＝f′(x0)(x－x0)，即g(x)＝f′(x0)(x－x0)．令F(x)＝f(x)－g(x)，即F(x)＝f(x)－f′(x0)(x－x0)，则F′(x)＝f′(x)－f′(x0)．由于f′(x)＝－nx n－1＋n在(0，＋∞)上单调递减，故F′(x)在(0，＋∞)上单调递减．又由于F′(x0)＝0，所以当x∈(0，x0)时，F′(x)＞0，当x∈(x0，＋∞)时，F′(x)＜0，所以F(x)在(0，x0)上单调递增，在(x0，＋∞)上单调递减，所以对于任意的正实数x，都有F(x)≤F(x0)＝0，即对于任意的正实数x，都有f(x)≤g(x)．(3)证明：不妨设x1≤x2.由(2)知，g(x)＝(n－n2)(x－x0)．设方程g(x)＝a的根为x2′，可得x2′＝an－n2＋x0，当n≥2时，g(x)在(－∞，＋∞)上单调递减，又由(2)知g(x2)≥f(x2)＝a＝g(x2′)，可得x2≤x2′.类似地，设曲线y＝f(x)在原点处的切线方程为y＝h(x)，可得h(x)＝nx. 当x∈(0，＋∞)时，f(x)－h(x)＝－x n＜0，即对于任意的x∈(0，＋∞)，f(x)＜h(x)．设方程h(x)＝a的根为x1′，可得x1′＝an.由于h(x)＝nx在(－∞，＋∞)上单调递增，且h(x1′)＝a＝f(x1)＜h(x1)，因此x1′＜x1. 由此可得x2－x1＜x2′－x1′＝a1－n＋x0.由于n≥2，所以2n－1＝(1＋1)n－1≥1＋C1n－1＝1＋n－1＝n，故2≥n1n－1＝x0.则当x1≤x2时，|x2－x1|＝x2－x1＜a1－n＋2.同理可证当x1＞x2时，结论也成立．综上，|x2－x1|＜a1－n＋2.。

高考英语二轮复习专题限时集训阅读理解训练6 词义猜测题高三全册英语试题

手惰市安逸阳光实验学校专题限时集训(二十) 阅读理解训练6 词义猜测题A(2016·乌鲁木齐诊断)I took a deep breath and walked through Mom's front door，my arms full of groceries.A challenge lay ahead of me：cooking the Easter Sunday feast.Me，someone who could barely boil water.What if I made everyone sick? It could truly be our family's last supper.Making the holiday meal was my brother's job，not mine.I could never fill his shoes.Peter had died in September at the age of 45 from a heart attack，but he'd been a natural in the kitchen all his life.He planned every course in detail，from the crescent rolls to the Dutch apple pie.My family was lost without him.We went out to dinner for Thanksgiving and ordered in pizza for Christmas.By the time Easter rolled around，though，I couldn't bear the idea of another holiday surrounded by takeout(外卖食品) boxes.Peter would have hated that.To him，there was nothing more important than a meal made with love.So I convinced Mom that we should cook Easter dinner together.Only，we were terrible cooks.What had I been thinking cooking for Easter dinner? I'd bitten off more than I could chew. No one could do this half as well as Peter.I stepped into the family room.Mom was still at church，but her newspaper was opened on the coffee table，to the sports section，as usual.She was a huge Notre Dame women's basketball fan，and the featured story was about forward Devereaux Peters，who was graduating.I read the headline and nearly dropped my grocery bags，Filling Peters' Shoes.That afternoon，cooking in the kitchen，I didn't feel so alone.Mom and I pulled together the Easter feast just fine.The ham may have been a little dry，but it was all made with love—just like Peter would have wanted.本文是一篇记叙文。

高考化学二轮复习第二篇题型四有机化学基础(选考)题型限时训练高三化学试题

魁夺市安身阳光实验学校题型四有机化学基础(选修选考)题型限时训练1.(2018·湖南株洲一检)(1)化合物D中所含官能团的名称为和。

(2)化合物E 的结构简式为;由B→C的反应类型是。

(3)写出C→D的反应方程式:。

(4)B的同分异构体有多种,其中同时满足下列条件的有种。

Ⅰ.属于芳香族化合物;Ⅱ.能发生银镜反应;Ⅲ.其核磁共振氢谱有5组波峰,且面积比为1∶1∶1∶1∶3。

(5)请写出以甲苯为原料制备化合物的合成路线流程图(无机试剂可任选)。

合成路线流程图示例如图:CH2CH2CH3CH2Br CH3CH2OH解析:(1)化合物D()中所含官能团的名称为羰基(酮基)和溴原子。

(2)对比D、F结构与E 的分子式,可知D中—Br被—CN取代生成E,则E的结构简式为;对比B、C结构简式可知,B中—Cl为苯基取代生成C,同时还生成HCl,由B→C 的反应类型是取代反应。

(3)比C 、D 的结构可知,C中甲基上H原子被Br原子取代生成D,属于取代反应,故其反应方程式为+Br 2+HBr。

(4)属于芳香族化合物说明含有苯环,能发生银镜反应,说明分子结构中存在醛基;核磁共振氢谱有5组波峰,说明分子结构中存在5种不同化学环境的氢原子,且面积比为1∶1∶1∶1∶3,说明苯环侧链上含有3个取代基,根据定二移一原则,即、、、、、、、、、共有10种同分异构体。

(5)甲苯与Br2/PCl3发生取代反应生成,与NaCN发生取代反应生成,再根据①NaOH/②HCl得到,与NaOH的水溶液加热发生取代反应生成,最后与在浓硫酸的作用下生成。

其合成路线流程图为:。

答案:(1)羰基(酮基) 溴原子(2)取代反应(3)+Br 2+HBr(4)10(5)2.(2018·河南六次联考)某芳香烃A(相对分子质量为92)是一种重要的有机化工原料,以它为初始原料经过如下转化关系图(部分产物、合成路线、反应条件略去)可以合成阿司匹林、扁桃酸等物质。

2023届高三英语二轮复习限时训练(词汇+语法填空+完形+七选五)07

一、词汇语法巩固练习1.I'll let you borrow my car __________ one condition that you lend me your bicyclein return.2.You can be paid __________ cash weekly or __________ cheque monthly; thoseare the two alternatives.3.In 2004, he started Dodgeball, another check-in service, which Google bought__________ a few million dollars and later shut down.4.Afterwards, he built dozens of single wooden rooms for the travellers to rent__________ the price of $3 per night by the roadside.5.When Sunday came, and it was time for the girl to start on her way, she becamefrightened, although she __________ (she) did not know exactly why.6.I knew that this wasn't the first time I __________ (let) such an opportunity passme by, and that made everything even more difficult.7.__________ a lot of hard work and a touch of luck play a part, perseverance is thekey to success.8.Both men had hardly had time to realize what was happening __________ theywere thrown violently into the sea.9.My grandpa, __________ is often the case with old people, is fond of __________(talk) about the good old days.10.My parents are the most important for me, without __________ support, I wouldn’thave reached that far.11.He is going to spend the Spring Festival in Nanjing, __________ live hisgrandparents and some relatives.12.Li Ziqi, the Chinese internet celebrity, is famous for her videos __________ sheperforms the work of a farmer with the grace of a fairy.13.By 16:30, __________ was almost closing time, nearly all the paintings had beensold.14.The most exciting moment during the Spring Festival is __________ the familyenjoy the big dinner together.15.The impact and ultimate result depend on __________ you do with the difficultiesthat you have.16.__________ bothers me is that I can’t keep my mind on the task, but on personalgains or losses.17.The father and his son got lost in the mountain and they had to eat __________food they could find there.18.Young women seem to perform worse than men on high-level math tests. That is__________ has confused the educators for ages.19.After being designated as the first special economic zone in China, __________was once a fishing village has rapidly become an emerging modern city.20.A warm thought suddenly came to me __________ I might use the pocket moneyto buy some flowers for my mother’s birthday.21.The Chinese Ministry of Agriculture finds that between 2005 — __________ thegovernment started a soil-testing program __________ gives specific fertilizerrecommendations to farmers — __________ 2011, fertilizer use dropped by 7.7 million tons.22.As more and more people own private cars, parking has become __________ bigheadache for many car owners, especially for those __________ live in downtown areas without enough __________ (park) spaces.23.When he saw the mists __________ (rise) from the river and the soft clouds__________ (surround) the mountain tops, he __________ (reduce) to tears.24.While visiting Hangzhou’s West Lake and its __________ (surround) beautifulhills, you’ll understand __________ it’s been a great source of __________ (inspire) for artists, poets and __________ (philosophy) throughout Chinese history.25.When I took the money from her grandparents, I looked back at the girl,__________ was giving me the most __________ (optimism) smile I had ever seen.All __________a sudden, her handicap was __________ (go) and all I saw was this beautiful girl, whose smile just melted me and almost instantly gave me a completely new sense of __________ life is all about.二、七选五Including children in the farming lifestyle has many benefits. Sure, it is nice to have the additional help with chores (家庭杂物), but it also fosters so much growth, sending our kids down a good path towards who they will someday become. It is possible that our children will grow up to lead lives that do not include farming. ______1______Through caring for farm animals, kids learn that in life others often come before self. ______2______ It doesn’t matter if we don’t feel like it or if we are sick and tired. What matters is that we take care of the animals that take care of us and do so in a timely manner.______3______ If the work on a farm does not get done, the operation fails. It takes discipline and commitment to get down to business every day, and seeing this in action will give kids a good work attitude. They will know and understand that nothing good comes easy and that they have to work to survive. ______4______ Functioning as part of a productive team will surely be playing a crucial role sooner or later in all walks of life.Additionally, farming teaches patience. ______5______ Cattle will be difficult to control. Horses will run away when you try to catch them. Goats will kick over that bucket of hard-earned milk. A rooster will decide you got too close to his hens and give you a run for your money. In spite of all that, kids will learn to be patient and take things easy.There may not be any instant reward, but in the long term kids will see the benefit of all their efforts during those hard days.A. At the same time, they learn to work with others.B. Farm life also teaches kids the value of hard work.C. Children learn to be grateful for animals for eating purpose.D. Teamwork is no longer an important skill to develop and use.E. There are going to be a lot of days when things do not go your way.F. However, what they learn on a farm can also be instrumental in their future lives.G. Animals need to be fed, watered, and cared for before we get to sit down and relax.三、完形填空When I was a child, I always wanted to be a superhero. I wanted to ____1____ the world and then make everyone happy. But I knew that I’d need superpower to make my dreams come true. When I grew up and realized that science fiction was not a good source for ____2____, I decided to go on a journey of ____3____ science, to find a more useful truth.I started my journey in California with a UCBerkeley 30-year study that examined the photos of students in some old yearbooks and tried to ____4____ their success and wellbeing throughout their life. I ____5____ a celebrity’s picture. When I first saw his picture, I thought that these superpowers came from his super collar. But now I know it was all in his ____6____.Smiling stimulates our brain reward mechanism in a way that even chocolate—a well-regarded pleasure inducer—cannot ____7____. British researchers found that one smile can produce the same ____8____ of brain stimulation as up to 2,000 bars of chocolate. The same study found that smiling is as stimulating as ____9____ up to 16,000 pounds in cash. That’s like 25 thousand dollars a smile. It’s not bad.And, unlike lots of chocolate, lots of smiling can actually make you____10____.Smiling can help reduce the level of stress-enhancing hormones, increase the level of ____11____ hormones and reduce overall blood pressure.So whenever you want to look great and competent, reduce your ____12____ or feel as if you just had a whole stack of high-quality chocolate—without worrying about the caloric ____13____—or as if you found 25 thousand dollars in a pocket of an old jacket you hadn’t ____14____ for ages, or whenever you want to tap into a superpower that will help you and everyone ____15____ you live a longer, healthier, happier life, smile.1. A. occupy B. conquer C. save D. beautify2. A. superpower B. supernature C. superman D. superhero3. A. fake B. natural C. complicated D. real4. A. achieve B. examine C. make D. measure5. A. came across B. came out C. came over D. came up6. A. picture B. smile C. dream D. yearbook7. A. adopt B. award C. match D. stand8. A. number B. piece C. scale D. level9. A. receiving B. rewarding C. repeating D. recording10. A. happier B. healthier C. heavier D. hungrier11. A. self-enhancing B. skill-enhancingC. mood-enhancingD. strength-enhancing12. A. weight B. stress C. pleasure D. satisfaction13. A. lost B. requirement C. consumption D. cost14. A. fixed B. worn C. met D. known15. A. except B. besides C. around D. without四、语法填空Agricultural experts say crop diversity is important to feed the (1)____________ (increase) population of our planet. They say having a large variety of plants also (2) ____________ (help) to protect against possible crop diseases and future crises. But many experts say the number has decreased sharply during the past century.One of the world’s largest seed (3) ____________ (conserve) projects has predicted further losses. The Millennium Seed Bank Partnership is warning that up to one hundred thousand plant species could (4) ____________ (permanent) disappear. The rich collection of genes (5) ____________ decide their qualities would disappear with them.Many experts blame climate change and loss of habitat, normal growth area, (6) ____________ damaging plant life. They say human activities and poorly planned, overly heavy use of land also are responsible. Modern business farming is responsible for loss of farmers’ traditional crop (7) ____________ (various). The “Green Revolution” of the (8) ____________ (twenty) century changed agriculture. Some experts say the use of modern commercial farming methods saved millions of people from starvation. Farmers planted, watered, and fertilized their crops with the help of machines. They treated their fields with chemicals (9) ____________ (control) diseases and insects. Harvests grew larger and of higher quality, (10) ____________another result was that some traditional crops were lost. Damage to the environment over the past century makes people believe that crop diversity also suffered.一、1-5 on; in, by; for; at; herself6-10 had let; Although/Though/While; when; as, talking; whose11-15 where; where; which; when; what16-20 What; whatever; what; what; that21. when’ which/that, and22. a, who, parking23. rising, surrounding, was reduced24. surrounding, why, inspiration, philosophers25. who, optimistic, of, gone, what二、FGBAE三、CADDA BCDAB CBDBC四、1. increasing2. helps3. conservation4. permanently5. that/which6. for7. varieties8. twentieth9. to control10. but。

高考英语二轮复习训练(六)“语法填空+短文改错”组合练6

精编优选练(六)“语法填空＋短文改错”组合练6(限时：30分钟)[题组一]Ⅰ.语法填空The saying “last man standing” refers to a(n) 1.____________ (compete), contest, or other situation where the field of participants is narrowed until only a single individual remains. Occasionally, the term may be used to describe a winning couple or team rather 2.____________ an individual.The exact origins of the term are 3.____________ (certain). Some believe the term 4.____________ (original) applied to the last boxer to remain during a match. O thers claim the term came from oldfashioned spelling bees, where participants either gave up 5.____________ were judged “out” and asked to sit. Perhaps the most wide use of the term is in connection with a tontine (联合养老制), an agreement in 6.____________ a number of persons collectively own something of value, often land. Interest in a tontine cannot 7.____________ (pass) to another party, so the last man standing, in this case the last person alive gets the entire interest. Throughout history, tontines have been dangerous investments (投资)．Today, the term is used in a number of 8.____________ (situation). It may refer to the winner in any 9.____________ (give) contest. It may even refer to the last person 10.____________ (continue) his attempt to achieve a goal after the others have given up.[语篇解读] 本文是一篇说明文。