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高三上学期英语阅读理解专项练习小卷7

高三上学期英语阅读理解专项练习小卷7

中学英语阅读理解专练小卷(七)Barber poles are one of those symbols that everyone recognizes. The red and white stripes (条) around a pole outside a shop let everyone know that this is a good place to get a haircut.While most everyone recognizes this symbol immediately, you might not know what it actually means. As it turns out, the meanings behind the barber pole and its colors have a rather gruesome history that may just surprise you.Back in the Middle Ages, barbers did more than haircuts and shaves.Barbers also offered certain medical services, like bloodletting. Bloodletting was used to treat many diseases from the simple, like throat pain, to more dangerous illnesses like infectious disease.Surgeons often wouldn’t do “simple” tasks like bloodletting as they considered it too ordinary. So barbers took over the task, along with other procedures like tooth extraction, and treatment for wounds and broken bones. In fact, barbers became known as “barber-surgeons” because of the broad range of services they offered. This continued until the mid to late 18th century, when treatments like bloodletting began to fall out of fashion.At first, barber-surgeons advertised their services to a largely illiterate (文盲的) public by placing a bowl of blood in their windows. However, later a law banned this practice, which meant that barbers needed to find another way. Then the red-and-white striped pole rapidly became the symbol of barber-surgeons afterward.According to historians, the red was meant to represent blood, while the white symbolized the bandages. The colors are wrapped around a stick because this represents the sticks that patients would hold in order to make the veins (血管) of their arms stand out. When the procedure was finished, barber-surgeons would wash the bandages, wrap them around the sticks, and place them outside to dry. In Europe, barber poles are red and white, so the blue stripe is a United States addition to represent the color of veins.So next time you’re heading to the barber, remember the history behind thecolors of the pole.85.What does the underlined word “gruesome” in Paragraph 2 probably mean?A.Embarrassing.B.Horrible.C.Glorious.D.Unforgettable. 86.What was included in barbers’ services in the 17th century?A.Selling beauty products.B.Treating a toothache.C.Performing big operations.D.Providing physical examination.87.What can we know about the blue stripes around the barber pole?A.They were used to stop bleeding.B.They were designed to calm patients.C.They stood for the color of veins.D.They can be found in Europe.88.What can be the best title for the passage?A.What Is the Story behind Haircuts?B.Why Barber Poles Become Popular?C.What Is the History of Barber’s Shop?D.Why Are Barber Poles Red, White and Blue?Researchers at the University of Massachusetts Amherst (UMass Amherst) recently announced that they have figured out how to engineer a biofilm (生物膜) that harvests the energy in evaporation (蒸发) and changes it to electricity. This biofilm, which was announced in Nature Communications, has the potential to revolutionize the world of wearable electronics, powering everything from personal medical sensors to personal electronics.“This is a very exciting technology,” says Liu Xiaomeng, graduate student in electrical and computer engineering in UMass Amherst’s College of Engineering and the paper’s lead author. “It generates real green energy, and unlike other so-called ‘green-energy’ sources, its production is totally green.”That’s because this biofilm-which is a sheet of bacterial cells and as thin as a sheet of paper-is produced naturally by an, engineered version of the bacterium Geobacter sulfurreducens (硫还原地杆菌). G. sulfurreducens is known to produce electricity and has been used previously in “microbial batteries” to power electrical equipment. But such batteries require that G. sulfurreducens be properly cared for and fed a constant diet. By contrast, this new biofilm, which can supply as much energy as a comparably sized battery, works continuously, because it is dead. And because it’s dead, it doesn’t need to be fed.The secret behind this new biofilm is that it makes energy from the moisture (水分) on your skin. Though we daily read stories about solar power, at least 50% of the solar energy reaching the earth goes toward evaporating water. “This is a huge, undiscovered source of energy,” says Yao Jun, professor of electrical and computer engineering at UMass Amherst, and the paper’s one senior author. Since the surface of our skin is constantly moist with sweat, the biofilm can “plug into” it and change the energy locked in evaporation into enough energy to power small equipment. “Our next step is to increase the size of our film to power more intelligent wearable electronics,” says Yao, and Liu points out that one of the goals is to power entire electronic systems, rather than single equipment.89.What function is the biofilm expected to achieve?A.Updating wearable electronics.B.Acquiring power from evaporation.C.Changing the way of getting electricity.D.Supplying energy to “microbial batteries”. 90.What is the advantage of the biofilm compared with “microbial batteries”?A.It’s thinner in thickness.B.It’s environmentally friendly.C.It reduces the cost in usage.D.It employs a rare energy source.91.How does the biofilm power small devices?A.By interacting with solar power.B.By gaining energy from electronic systems.C.By using water to generate electricity.D.By producing continuous electricity from sweat.92.Which of the following best describes the biofilm?A.Flexible.B.Controversial.C.Promising.D.Delicate.AntarcticaWeatherAntarctica lies in the most southern part of the world. It is the coldest area on Earth. There isn’t much rain, but there is a lot of snow and wind. The lowest temperature was on 21 July in 1983 at -89.2℃!PopulationNobody lives in Antarctica all the time! The first people to stay there for a while were fishermen in 1786. Now there are about 5,000 scientists and researchers there in the summer. History of exploration (探险)During 1907-1909, British explorer Earnest Shackleton explored Antarctica on foot. In 1911, two explorers — a British man named Scott and a Norwegian named Amundsen — raced 1,400kilometers to the South Pole (南极). Amundsen arrived first.Animals and birdsThere aren’t any large animals in Antarctica. Polar bears live at the North Pole. But there are a lot of penguins and seabirds. Every spring there are over 100 million seabirds in Antarctica. 93.When did the lowest temperature appear in Antarctica?A.In 1786.B.In 1907.C.In 1911.D.In 1983.94.Who first stayed in Antarctica for some time?A.Fishermen.B.Scientists.C.Researchers.D.Explorers. 95.Where is Earnest Shackleton from?A.Britain.B.Norway.C.The South Pole.D.The North Pole.A machine can now not only beat you at chess, it can also outperform you in debate. Last week, in a public debate in San Francisco, a software program called Project Debater beat its human competitors, including Noa Ovadia, Israel’s former national debating champion.Brilliant though it is, Project Debater has some weaknesses. It takes sentences from its library of documents and prebuilt arguments and strings them together. This can lead to the kinds of mistakes no human would make. Such mistakes will no doubt be ironed out, yet they also point to a vital problem. As Kristian Hammond, professor of electrical engineering and computer science at Northwestern University, put it: “There’s never a stage at which the system knows what it’s talking about.”What Hammond is referring to is the question of meaning, and meaning is central to what makes the least intelligent of humans different from the most intelligent of machines. A computer works with symbols. Its program specifies (明确规定) a set of rules to transform one string of symbols onto another. But it does not specify what those symbols mean. Indeed, to a computer, meaning is irrelevant. Humans, in thinking, talking, reading and writing, also work with symbols. But for humans, meaning is everything. When we communicate, we communicate meaning. What matters is not just the outside of a string of symbols, but the inside too, not just how they are arranged but what they mean.Meaning becomes known through a process of social interaction (相互作用), not of computation, interaction that shapes the content of the symbols in our heads. The rules that decide meaning lie not just inside our heads, but also outside, in society, in social memory, social customs and social relations. It is this that tells humans and machines apart. And that’s why, however shocking Project Debater may seem, the tradition that began with Socrates and Confucius will not end with artificial intelligence.96.Why does the author mention Noa Ovadia in the first paragraph?A.To explain the use of a software program.B.To show the cleverness of Project Debater.C.To introduce the designer of Project Debater.D.To emphasize the fairness of the competition.97.What is Project Debater unable to do according to Hammond?A.Create rules.B.Talk fluently.C.Understand meaning.D.Identify difficult words.98.What can be inferred about the future of human tradition?A.It will go against AI.B.It will be passed down.C.It will definitely disappear.D.It will be written into programs.99.What can we learn from the last paragraph?A.Social interaction is key to understanding symbols.B.Artificial intelligence ensures humans a bright future.C.Ancient philosophers set good examples for debaters.D.The human brain has more to be developed.Sitting in the classroom I felt confused, for I couldn’t read the blackboard. Then Mum took me to the hospital. Within a few days, I was diagnosed (诊断) with a severe visual impairment (视力障碍). In fact, I was practically blind. Amazingly, I’d managed to reach the age of 13 without anyone realizing, not even me! “It all makes sense now,” Mum said. As a kid living on a farm, I was forever falling over things. I was known as the clumsy (笨拙) one to my parents and four sisters. But now, I was being told that I saw the world differently — I could only make out the outlines of things. I was given reading glasses but they didn’t help much.Refusing to let my diagnosis hold me back, I continued doing everything I loved. As long as everything was in its place, I could feel my way around.Later I got married to Lance and had amazing kids. I could change nappies (尿布) and dress the kids fine — it just took a little longer as I relied on touch to work out where things were. Cooking, on the other hand, was not my forte. I was terrible — always mixing up sugar and salt!Nowadays, my grandkids have all been brought up not to leave toys on the floor or move chairs away from the table. “We don’t want Grandma tripping,” Lance will say.Over the year, I’ve enjoyed lovely family holidays, but sometimes felt like Lance or the kids were too protective of me. So I was thrilled when I booked myself on a trip to the Gold Coast with people who were just like me in a travel company. I’m not missing out — my life is beautiful. I’m so lucky to have a wonderful family and lots of experiences.Life is precious — you don’t need to “see” that.120.What can we know from the first paragraph?A.The reading glasses got the problem fixed.B.She always tripped because she was awkward.C.She got severe visual impairment at the age of 13.D.Nobody realized her sight was poor until she was 13.121.What does the underlined word “forte” in Paragraph 3 mean?A.Weakness.B.Favourite.C.Strength.D.Business. 122.What can we know about the author?A.She is able to see things clearly now.B.She led a lonely and hopeless life.C.She could help care for the kids.D.She went to the Gold Coast all by herself.123.What can we learn from the author’s story?A.We need to go to travel frequently on our own.B.We should always turn to the family for help.C.Everyone should pay special attention to the blind people.D.Everyone can enjoy the beauty of life with a positive mind.Scientists in the Netherlands have trained bees to identify COVID-19 through their sense of smell, according to a press release from Wageningen University. The research was conducted on more than 150 bees in Wageningen University’s research lab.The scientists trained the bees by giving them a treat — a sugar-water solution — every time they were exposed (暴露于) to the smell of samples (样本) infected with COVID-19. Each time the bees were exposed to a non-infected sample, they wouldn’t get a reward. Eventually, the bees could identify an infected sample within a few seconds — and would then stick out their tongues like clockwork to collect the sugar water.Bees aren’t the first animals to detect COVID-19 by smell. Researchers have also trained dogs to tell the difference between positive and negative COVID-19 samples from human saliva (唾液) or sweat with fairly high levels of accuracy. A German study found that dogs could identify positive COVID-19 samples 94% of the time. That’s because the coronavirus (冠状病毒) makes an infected person’s body smell slightly different from those of a non-infected person. But researchers still aren’t sure whether animals are the best bet for smelling out COVID-19 cases outside the lab.“No one is saying they can replace a PCR machine, but they could be very promising,” Holger Volk, a neurologist, told Nature. PCR machines are what lab technicians use to process standard COVID-19 tests. At the very least, certain animals could be useful for identifying COVID-19 in places or countries in which high-tech lab equipment is not enough or inaccessible.Wageningen scientists are working on a machine that can train bees at once. Then bees can use their skills to test for coronavirus aerosols (气溶胶) in the surrounding environment. 124.How did the researchers teach the bees to identify COVID-19?A.By offering bees some rewards.B.By infecting bees with the virus.C.By raising bees with sugar water.D.By exposing bees to infected humans. 125.Why are dogs able to find out positive COVID-19 samples?A.They can watch for the hidden virus.B.They have a sharp sense of smell.C.They can feel samples’ inner changes.D.They react more quickly than bees.126.What is the follow-up task of Wageningen scientists?A.To keep track of more bees.B.To detect coronavirus aerosols.C.To help underdeveloped countries.D.To develop a new type of machine. 127.What is a suitable title for the text?A.Dogs: Well-trained PCR machinesB.Bees: Promising COVID-19 detectorsC.Holger Volk: A fighter against COVID-19D.Wageningen University: A leader in keeping bees答案:85.B 86.B 87.C 88.D【来源】河南省湘豫名校2023-2024学年高三上学期9月月考英语试题【导语】本文是一篇说明文。

高三高考5月押题考试语文试题练习七及答案解析

高三高考5月押题考试语文试题练习七及答案解析

心理学家克劳特曾做过这样一个实验:他要求一群参加实验者对慈善事业做出捐献,然后根据他们是否有捐献,分别说成是“慈善的人”和“不慈善的人”,还有一些参加实验者则没有被下这样的结论。

过了一段时间后,当再次要求这些人做捐献时,发现那些第一次捐了钱并被说成是“慈善的人”比那些没有被下过结论的人捐钱要多,而那些第一次被说成是“不慈善的人”比那些没有被下过结论的人捐献得要少。

当一个人被贴上标签时,他往往会做出自我印象管理,使自己的行为与所贴的标签内容相一致。

以上材料引发了你怎样的联想和思考?请写一篇文章。

要求:选准角度,确定立意,明确文体,自拟标题;不要套作,不得抄袭;不得泄露个人信息;不少于800字。

参考立意:①标签可以引人向好,也可能让人向恶;②面对被贴上的标签,冷静思考,看清性质;③勇敢撕掉贴在自己身上的标签,看清困扰自己的人和事;④为自己贴积极标签,做有为青年。

【命题意图】本题考查作文写作的能力。

【解析】作文题由材料、提示语、写作要求三部分组成。

材料由两部分组成。

第一部分讲述心理学家的实验,第二部分针对这个实验发表议论。

由议论可知,人的行为有趋向标签的现象。

基于此,可以就以下一些方面展开讨论。

一是讨论标签的作用,正面的标签有正面作用,负面的标签有反面作用。

二是讨论如何面对标签,首先确定标签的性质,辨清标签是正面标签还是负面标签;然后根据标签性质做好应对之策,正面标签要坚持贴上,负面标签要坚决撕掉。

三是讨论如何利用标签,给自己贴正面的标签,给自己正面的暗示,引导自己积极的行为。

如果从“谁贴标签”角度展开作文,言之成理亦可。

标签下的自我重塑:慈善行为的心理学探究人们往往如同被风雕琢的石头,被周围的世界所塑造。

这一塑造过程,在心理学家的眼中,有着独特的解读。

克劳特所做的实验,恰恰揭示了人们在被贴上标签后,如何在行为上表现出与标签相符的特性。

这一现象,不仅让我们对人性有了更深的洞察,更让我们对慈善行为背后的心理动机产生了浓厚的兴趣。

2020届高三英语二轮复习书面表达专项练习:(7)应用文写作-回复信

2020届高三英语二轮复习书面表达专项练习:(7)应用文写作-回复信

应用文写作-回复信1、假定你是李华,你的新西兰朋友Terry将去中国朋友家做客,发邮件向你询问有关习俗。

请你回复邮件。

内容包括:1. 到达时间;2.合适的礼物;3. 餐桌礼仪。

注意:1. 词数100左右;2. 可以适当增加细节,以使行文连贯。

_______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ ______________________________________________________________________________2、假定你是中学生李华。

在一位名叫Tiger Mom的学生家长的博客上,你看到如下内容。

请你根据博客内容、写作要点和要求,给这位家长回复。

I'm the mother of a fourteen-year-old girl. I have a rule for my daughter : be among the top 5 students or get punished in one way or another.She has been doing very well in school,but some friends of mine keep telling me that I put too much pressure on her. Am I wrong?写作要点:1. 表明自己的看法;2. 陈述自己的理由(可举例说明);3. 提出至少两条建议。

高三数学二轮复习同步练习7知识归纳

高三数学二轮复习同步练习7知识归纳

专题71.求函数y =x 4+3x 2+3x 2+1的最小值. [解析] 设t =x 2+1,则t ≥1,且x 2=t -1,∴y =x 4+3x 2+3x 2+1=(t -1)2+3(t -1)+3t=t 2+t +1t =t +1t+1. ∵t ≥1,∴t +1t ≥2t ·1t =2, 当且仅当t =1t,即t =1时,等号成立. ∴当x =0时,函数取得最小值3.2.制订投资计划时,不仅要考虑可能获得的盈利,而且要考虑可能出现的亏损.某投资人打算投资甲、乙两个项目.根据预测,甲、乙项目可能的最大盈利率分别为100%和50%,可能的最大亏损率分别为30%和10%.投资人计划投资金额不超过10万元,要求确保可能的资金亏损不超过1.8万元.问投资人对甲、乙两个项目各投资多少万元,才能使可能的盈利最大?[解析] 设投资人分别用x 万元、y 万元投资甲、乙两个项目,由题意知⎩⎪⎨⎪⎧ x +y ≤10,0.3x +0.1y ≤1.8,x ≥0,y ≥0.目标函数z =x +0.5y .上述不等式组表示的平面区域如图所示,阴影部分(含边界)即可行域.作直线l 0:x +0.5y =0,并作平行于直线l 0的一组直线x +0.5y =z ,z ∈R ,与可行域相交,其中有一条直线经过可行域上的M 点,且与直线x +0.5y=0的距离最大,这里M 点是直线x +y =10和0.3x +0.1y =1.8的交点.解方程组⎩⎪⎨⎪⎧x +y =10,0.3x +0.1y =1.8,得x =4,y =6. 此时z =1×4+0.5×6=7(万元).∴当x =4,y =6时z 取得最大值.答:投资人用4万元投资甲项目、6万元投资乙项目,才能在确保亏损不超过1.8万元的前提下,使可能的盈利最大.3.蜜蜂被认为是自然界中最杰出的建筑师,单个蜂巢可以近似地看作是一个正六边形,如图为一组蜂巢的截面图.其中第一个图有1个蜂巢,第二个图有7个蜂巢,第三个图有19个蜂巢,按此规律,以f (n )表示第n 幅图的蜂巢总数.(1)试给出f (4)、f (5)的值,并求f (n )的表达式;(2)证明:1f (1)+1f (2)+1f (3)+…+1f (n )<43. [解析] (1)f (4)=37,f (5)=61.由于f (2)-f (1)=7-1=6,f (3)-f (2)=19-7=2×6,f (4)-f (3)=37-19=3×6,f (5)-f (4)=61-37=4×6,…因此,当n ≥2时,有f (n )-f (n -1)=6(n -1),所以f (n )=[f (n )-f (n -1)]+[f (n -1)-f (n -2)]+…+[f (2)-f (1)]+f (1)=6[(n -1)+(n -2)+…+2+1]+1=3n 2-3n +1.又f (1)=1=3×12-3×1+1,所以f (n )=3n 2-3n +1.(2)证明:当k ≥2时,1f (k )=13k 2-3k +1<13k 2-3k=13(1k -1-1k). 当n =1时,显然结论成立,当n ≥2时,1f (1)+1f (2)+1f (3)+…+1f (n )<1+13[(1-12)+(12-13)+…+(1n -1-1n)] =1+13(1-1n )<1+13=43. 综上,结论成立.4.(理)在数列{a n },{b n }中,a 1=2,b 1=4,且a n ,b n ,a n +1成等差数列,b n ,a n +1,b n +1成等比数列(n ∈N *).(1)求a 2,a 3,a 4及b 2,b 3,b 4,由此猜测{a n },{b n }的通项公式,并证明你的结论;(2)证明:1a 1+b 1+1a 2+b 2+…+1a n +b n <512. [解析] (1)由条件得2b n =a n +a n +1,a 2n +1=b n b n +1. 由此可得a 2=6,b 2=9,a 3=12,b 3=16,a 4=20,b 4=25. 猜测a n =n (n +1),b n =(n +1)2.用数学归纳法证明:①当n =1时,由上面可得结论成立. ②假设当n =k 时,结论成立,即a k =k (k +1),b k =(k +1)2,那么当n =k +1时,a k +1=2b k -a k =2(k +1)2-k (k +1)=(k +1)(k +2),b k +1=a 2k +1b k=(k +2)2. 所以当n =k +1时,结论也成立. 由①②可知,a n =n (n +1),b n =(n +1)2对一切正整数都成立.(2)证明:1a 1+b 1=16<512. 当n ≥2时,由(1)知a n +b n =(n +1)·(2n +1)>2(n +1)n . 故1a 1+b 1+1a 2+b 2+…+1a n +b n <16+12(12×3+13×4+…+1n (n +1)) =16+12(12-13+13-14…+1n -1n +1) =16+12(12-1n +1)<16+14=512. 综上,原不等式成立.。

高中语文高三语文文言文复习小练习

高中语文高三语文文言文复习小练习

(一)零陵三亭记柳宗元1.夫气烦则虑乱,视壅.则志滞()2.泉出石中,低湿污涂,群畜食焉.()3.为.县者积数十人,莫.知发视()4.河东薛存义以.吏能闻荆、楚间,潭部举之,假.湘源令。

()()5.会.零陵政乱赋扰,民讼于.牧,推能济弊,来莅兹邑。

()6.州牧尚.焉,旁邑仿焉.。

()()7.然而未尝以剧.自扰,山水鸟鱼之乐,澹然自若也()8.爰有嘉木美卉,垂水映峰……不植而遂.()10.乃作三亭,陟.降晦明,高者冠山巅,下者俯清池()11.薛拜子曰:“吾志也。

”遂刻.之()翻译12.遁逃复还,愁痛笑歌;逋租匿役,期月辨理;宿蠹藏奸,披露首服。

13.使继是者咸有薛之志,则邑民之福,其可既乎?(二)游南岳记1.戊戌秋,余偕陈子乔、林固庵二人之.衡山()2.舆.行两日抵其麓()3.阴雨骤注,咫尺晦昧..,兴几尽()4.强.之行,山径崎岖,舁者无所用其力,各蹑其屦以.上()()5.瀑布奔流怒号于万仞下,一失足,人莫.援以手()6.俄而..一岫现,以为凌绝顶也()7.从容攀跻,抵上封寺,宿焉.()8.乃攀危.石凌.绝顶()()9.亦将无以极.宇宙之大观()10.尽乎人复得乎天,而后此心庶.乎无憾矣!()11.二子其.亦有此志乎?()翻译:12.(故安于蒙昧而不进者,自弃也;)得其半而即欲自止者,画也。

13.殚其力之所能为,以求其境之可至。

(三)钓台1.七八岁时,过钓台,听大人言子陵事,心私仪.之()2.以.幼,不许习.险()()3.前年到睦州,又值足有疾,且.雨甚,不得上()4.今从台荡归,以.六月五日上钓台也()5.由客星亭右,径.二十余折,上西台()6.亭中祠中,俱为时官匾尽.()7.尧让天下于.许由,许由不受,子陵薄.官()()8.夫兰桂之味,以.清口出之,则芳;以嗳气出之,则秽()9.然则尽去.其文乎?曰:“山高水长,存范仲淹一额可也。

”()翻译10.空钩意钓,何.必鲂鲤,吾不以沧桑泥高下也。

11.子陵诚高矣,而必求所以高在不仕,则磻溪之竿,将投灶下耶?(四)沧浪亭记1.思得高爽虚辟之地,以舒.所怀()2.东顾苹树郁然,崇.阜广水()3.号“沧浪”焉.()4.尤与风月为相宜..()5.觞.而浩歌,踞而仰啸()6.返思向之..汩汩荣辱之场()7. 不亦鄙.哉()8.人固动物..耳()9.非胜是而易.之,则悲而不开()10.因之..复能见乎.内外失得之原()()翻译:11.形骸既适则神不烦,观听无邪则道以明。

高三英语《非谓语动词》专题精选练习7(含答案)

高三英语《非谓语动词》专题精选练习7(含答案)

高三英语《非谓语动词》专题精选练习7(含答案)学校:___________姓名:___________班级:___________考号:___________一、单项选择1.The job market and the social expectations of students,with the education system,form a big challenge for society.A.combine B.to combineC.combining D.combined2.Though measures have now been taken to prevent further price hikes,many people remain over the rising cost of food.A.concerning B.concernsC.concern D.concerned3.The boy will make a lot of trouble when____________alone.A.leaving B.leave C.left D.being left4.My father insisted that every minute____made full use of_______the work well. A.be,to do B.has been,doingC.be,doing D.has been,to do5.---Have all the mysteries been cleared up?---Almost.But______only one question______.A.there remains;answered B.it remains;to be answered C.there remains;to be answered D.it remains;answered6.________some more chairs,tables and so on,the room looked more beautiful. A.Furnished with B.Furnished byC.To furnish with D.Furnishing with7.________to the hot weather here was more difficult than I had expected. A.Adjusting B.AdoptingC.Relating D.Using8.________from Milan Trenc's novel,the film Night at the Museum brings to life a world where dinosaurs wander the earth.A.To be adapted B.AdaptingC.Having adapted D.Adapted9.—How is the man injured in the earthquake?—The doctor said if________in a proper way,he was likely to be saved. A.treated B.treatingC.is treated D.to be treated10.________in his book,he didn't notice me________I entered the room. A.Devoted;when B.Absorbed;while C.Absorbed;when D.Devoted;while 11.—What is the Group G8?—Oh,it is a group________the eight of the richest countries or areas of the world.A.consisting of B.consists ofC.consisted of D.is consisted of12.________Tom to be fit for the office,the boss________taking him on. A.Consider;considered B.Considering;considering C.Considering;considered D.Considered;considering 13.Did you have trouble________the post office?A.to have found B.with findingC.find D.in finding14.In freezing weather,snow can turn into ice,which is easy to________.A.be slipped B.slipC.slip on D.be slipping15.—Li Ming is said________abroad.Do you know what country he will study in?—Yes,in London.A.to have studied B.to studyC.to be studying D.to have been studying16.________by the policy,he decided to build a new factory.A.Being encouraged B.Encouraging C.Encouraged D.Having encouraged17.He didn't want to see anybody,so he spent six hours________in the small room. A.locked B.to lockC.locking D.being locked18.Eugene's never willing to alter any of his opinions.It's no use________with him. A.to argue B.arguedC.arguing D.having argued19.The interviewee hurried to the meeting room,only________that the interview was over.A.to tell B.having been toldC.to be told D.telling20.If________the same treatment again,he is sure to get well.A.giving B.being givenC.give D.given21.The airport________next year will help promote tourism in this area.A.being completed B.to be completedC.completed D.having been completed22.__________in the area reported___________three people robbing the bank with their heads wrapped in socks.A.Witness;to look at B.Witnesses;seeing C.Witnesses;looking out D.Witness;to see23.The man fell to the ground,his left foot_____and blood____down from his mouth. A.breaking;running B.broken;runningC.breaking;run D.broken;run24.—Come on,please give me some ideas about the project.—Sorry.With so much work_______my mind,I almost break down.A.filled B.filling C.to fill D.being filled25.The woman,when_______how her husband was injured,began to cry.A.asked B.to askC.asking D.ask26._____________in the poorest area of Glasgow,he had a long,hard road to becoming a football star.A.Being raised B.RaisingC.Raised D.To raise27.________on this report,the English government decided to ask Captain James Cook to go and look for this continent.A.Having based B.BasingC.Based D.To be based28.Mrs.Smith warned her daughter________after drinking.A.never to drive B.to never driveC.never driving D.never drives29.You can’t imagine what difficulty we had________home in the snowstorm. A.walked B.walkC.to walk D.walking30.She bravely faced the difficulty she had________her English.A.studying B.studiedC.to study D.been studying31.______in heavy school work,most senior three students have no free time to do what they want.A.Buried B.Having buriedC.Being buried D.To be buried32.(题文)The librarians________the books in the library as novels,which are popular with us.A.suppose B.classifyC.look D.insist33.——Can I smoke here?——Sorry.We don’t allow_______here.A.people smoking B.people smoke C.to smoke D.smoking 34.Though a typhoon is on the way,people are still looking forward______the outdoor concert by the pop singer.A.to canceling B.not to cancelingC.not to cancel D.to not canceling35.The moment the cat heard the mice_______noises,it rushed out________the door. A.make,from B.making,behindC.make,from behind D.making,from behind二、用所给词的正确形式填空单句语法填空36.____________(bury)in the novel,the boy didn’t raise his head and forgot to eat anything.37.____________(addict)to the computer games,Alice hardly goes to work.38.____________(know)the address and any information,I wasn’t able to contact him. 39.____________(show)around Tian’anmen Square,the tourists were taken to visit the Palace Museum.40.Housing price is rising sharply.Such____________(be)the case,we are very lucky to have a house of our own.41.____________(translate)into three foreign languages,the book sells well.42.____________(beat),children were not discouraged by the result.43.____________(write)in a hurry,this composition was not well constructed. 44.____________(suffer)from heart trouble for years,Professor White has to take some medicine with him wherever he goes.45.The building____________(build)now is said to be intended for students not for teachers.46.(1)I am glad to see the day is bright,with a fresh breeze______(blow).(2)She sat on the chair thinking about something,with her head______(bend).(3)With a lot of work______(do),I cannot go to travel with you next week.用所给词的适当形式填空47.The man_________(wear)a sad look said,"I’ve lost my wallet."48.How__________________________(solve)the water problem will be discussed at the meeting next Monday.49.When he woke up,he found himself___________(lie)in hospital.50.The room with the windows______(face)north needs______(clean).51.—How do you deal with the problem?—The key to_________(solve)the problem is to meet the demand_______(make)by the customers.52.We found that the room was empty except for a cupboard____________(stand)in one comer.53.The teacher asked us not to leave the water______(run)when we left the lab. 54.The big earthquake hit the area several days ago,_______(cause)the deaths of some people.55.____(blame)for the terrible accident,the driver felt angry and claimed to be innocent.56.______(collect)enough information about the experiment is quite necessary to make sure that data is correct.语法专练57.I think it is no use________.(expect)to get a bargain these days.58.They have just come here to get down to________(repair)the broken windows. 59.We greatly appreciate you________(give)us a timely hand when faced with trouble. 60.________(leave)alone in the big house is the most frightening moment for the little boy. 61.She strongly disliked________(speak)to like that.62.The books you bought last week require________(arrange)on the shelves right now. 63.Many boys dream of________(become)the best football player in China. 64.With Hong Kong and Macao’s return,Taiwan’s________(reunite)eventually with the motherland is a matter of time.65.It is difficult to imagine him________(become)such a famous actor in the world. 66.I seem to remember________(give)a chance to try this method then.单句语法填空67.There is no sense________(ask)questions if you don’t listen to the answer. 68.Everyone you meet deserves________(greet)with a smile.69.I insisted on my father as well as my sister________(stay)with me in Beijing. 70.The investment adviser recommends________(buy)shares in Aircraft Company. 71.I’m sure the day will come when you regret________(turn)down his requests. 72.You can make up an excuse to avoid________(go)out with him.73.The discovery of new evidence has led to the real murderer________(catch). 74.Her face took on a________(worry)expression after hearing the news. 75.Mr.Smith is such a man always________(occupy)himself in taking care of the elderly here.76.________(attend)this course will be an advantage for anyone hoping to be promoted.语法专练77._________(accomplish)the homework,he went out to meet his friends.78.________(practice)English every day,you’ll master it well step by step. 79.What a pity that________(work)so hard,he fails again!80.________(see)those pictures,she remembered her childhood.81.There is mud and water everywhere,________(make)it difficult to travel from place to place.82.________(investigate)the event careful,he found something he had not known before. 83.The children ran out of the room,________(laugh)and talking merrily.84.________(follow)the old man,the young people started walking slowly. 85.Time________(permit),we’d better have a rest at this weekend.86.They stood there for half an hour________(observe)the stars in the sky.87.________(judge)from what he said,she must be an honest girl.88.The big fire lasted nearly two day,________(leave)nothing valuable.89.________(know)his address,I can’t return this book to him.90.________(travel)by car,we visited many places of interest in Beijing.91.It________(be)the National Day today,the streets are very crowded.单句语法填空92.Do you know when the Great Wall first came into_______(be)?93.Please put your luggage here for safety__________(inspect).94.That will make a good________(end)to the book.95.With an article__________(write),I have to stay up late tonight. 96.Suddenly they noticed a house________two big trees standing in front of it.97.It was not long________his dream came true.98.I don't like the way__________you speak to your mother.99.He sat at the corner so_________he survived the accident.填写空白处所需的内容(1个单词)或用所给词的正确形式填空100.The hall was extremely big,________(measure)200metres long and100metres wide.101.The noise outside stopped me settling down________my lessons.102.________(surround)by trees and flowers,our school looks very beautiful. 103.All the factors________(consider),the planned trip will have to be called off. 104.Difficult as it was,I managed________(persuade)him into________(give)up his plan.三、选用适当的单词或短语补全句子105.(1)Last week I had my bike________(repair).(2)Last week he had my father________(repair)his bike.(3)Fm very sorry for having you________(wait)outside for long.(4)I have something important________(tell)you.(5)Sir,do you have anything________(type)this afternoon?If there is nothing to do,I wonder if I can ask for leave.选词填空106.We decided to take a plane________drive to visit Canada.107.We________a plane in the evening,and at dawn,we were over Canada. 108.We________many lakes and mountains and the beauty was beyond all praise. 109.They’d like to see their daughter________,get married,and have kids. 110.Did you really write the report________last Sunday morning?四、用适当的词完成句子单句语法填空111.I don’t think________difficult for a Chinese student to master a foreign language within five years.112.A terrible accident happened last night,________(result)in heavy losses. 113.The general gave the order________the soldiers should cross the river at once. 114.Father is opposed to________(spend)much time watching TV because it’s a waste of time.115.Some researchers believe that________is no doubt that human will go to Mars one day. 116.If you make up your mind to do so,then you should realize it may have serious___________(consequence).117.It wasn’t long________he realized he had made a serious mistake.118.The elephant is the largest land animal in________(exist)today.119.His life goal is to make contributions to________(help)the poor in society. 120.It is not getting all you want but enjoying all you have________brings you happiness.五、单句改错单句改错121.Mr.Li arrived at the train station twenty minutes ago,but his train didn’t come yet.___________________________________________________________________________ _________________122.My brother has left for America on business upon my arrival,so I didn’t have a chance to see him off.___________________________________________________________________________ _________________123.We went to the airport early in order to have enough time check in.___________________________________________________________________________ _________________124.Which the proverb goes,“The enemy in disguise is just like the wolf in sheep’s clothing.”___________________________________________________________________________ _________________125.He has kept on learning English by radio for three years without interrupting.___________________________________________________________________________ _________________126.It is assuming that mental health is related to physical health.___________________________________________________________________________ _________________127.The new report has great significant for the next step of economic development.___________________________________________________________________________ _________________128.It was raining heavily,but he went on working in the field regardless the bad weather. ___________________________________________________________________________ _________________129.As many as150workers died in the accident.If only the employers paid enough attention to the safety measures!____________________________________________________________________________________________130.In the first half of this year the total sales rose by20per cent as comparing with that of last year.___________________________________________________________________________ _________________单句改错131.Giving an opportunity,we can surprise the world.___________________________________________________________________________ __132.The thief was brought in,with two hands tying behind his back.___________________________________________________________________________ __133.Weather permitted,we can go on an outing.___________________________________________________________________________ __134.Generally speaking,a teacher won’t scold you unless annoying.___________________________________________________________________________ __135.Judged from what she said,she was lying.___________________________________________________________________________ __136.Defeating by his opponent,he never gave up hope.___________________________________________________________________________ __137.Not having been completed the programme,we have to stay in France for another five weeks.___________________________________________________________________________ __138.Facing with so much trouble,he failed to finish his task on time.___________________________________________________________________________ __139.After his journey from abroad,Jack returned home,being exhausted.___________________________________________________________________________ __140.Giving that you told me the truth,I wouldn’t punish you.___________________________________________________________________________ __六、短文改错141.短文改错It is three years now since I graduate from Xinhua High st Sunday,the class that I was in held a get-together,which took us a long time to prepare.It was indeed not easy to get in touch with everybody and a properly time for all of us.We all enjoyed a precious day greatly,remember the time we spent together.It reminded us the interesting stories and the people they were familiar with.It was a pity which some of us were not present as they had gone to abroad for further studies.And they called back or sent greeting card from different places.七、汉译英翻译句子142.因手术后还没有完全康复,医生建议Mary再住院两周。

新人教版2高三数学零诊复习学后练习7

新人教版2高三数学零诊复习学后练习7

高三数学零诊复习学后练习7知识要点:等比数列{ a n }:(1)定义:1n n a q a +=(不为零的常数);(2)通项公式:a n = a 1 q n – 1 ,推广:a n = a m q n – m ( m , n ∈N );(3)等比数列的前n 项和公式: q ≠1时,S n = q q a n --1)1(1=q q a a n --11; q = 1时,S n = n a 1(4)等比数列的主要性质:① 若m + n = 2 p ,则a p 2 = a m • a n (等比中项)( m , n ∈N )② 若m + n = p + q ,则 a m • a n = a p • a q ( m , n , p , q ∈N )一、能力培养1、已知等比数列{a n },a 2=8,a 5=512.(1)求{a n }的通项公式;(2)令b n =log 2a n ,求数列{b n }的前n 项和S n .变式训练1、已知等比数列{a n }前n 项和S n =2n -1,{a n 2}前n 项和为T n ,求T n 的表达式。

2、已知数列{a n }满足a 1=1,a 2=2,a n +2=a n +a n +12,n ∈N *. (1)令b n =a n +1-a n ,证明:{b n }是等比数列;(2)求{a n }的通项公式.变式训练2、在数列{a n }中,a 1=2,a n +1=4 a n -3n +1,n ∈N*.(1)证明数列{ a n -n}是等比数列;(2)求数列{ a n }的前n 项和Sn ;3、已知实数列{a n }是等比数列,其中a 7=1,且a 4,a 5+1,a 6成等差数列.(1)求数列{a n }的通项公式;(2)数列{a n }的前n 项和记为S n ,证明:S n <128(n =1,2,3,…).二、巩固练习1、设等比数列{a n }的前n 项和为S n ,若S 6S 3=3,则S 9S 6=( )。

高考英语总复习 Unit 1 Living well练习7高三7英语试题

高考英语总复习 Unit 1 Living well练习7高三7英语试题

毛额市鹌鹑阳光实验学校Unit 1 Living wellA级:基础巩固Ⅰ.单词拼写1.His d caused by a big fire prevents him from holding a job.答案:disability2.Mr.Webson,a businessman,found the mild climate in coastal areas (有益)to his illness and stayed there for a whole month.答案:beneficial3.She never speaks ill of anyone in his or her (不在).答案:absence4.He r his post as headmaster and took up business.答案:resigned5.The experiment (主持)by Professor Meine proved to be a great success.答案:conducted6.They often offer a when we are in trouble.答案:assistance 7.There are many differences between Earth and Mars.While the former has an atmosphere and liquid water,the l does not. 答案:latter8.He was my only Chinese (伙伴)during my stay in Australia. 答案:companion9.There is only one way (可以进入)to the old castle.答案:accessible10.Many colonies in Africa became i nations in the 1950’s and gone were the days when they were ruled by foreigners.答案:independentⅡ.句型转换1.A:There is no doubt about his suitability for the job.B:There is no doubt that his job.答案:he is suitable for2.A:To the annoyance of the young father,his son kept crying.B:The young father his son for crying.答案:was annoyed with;keeping3.A:The fall in prices will benefit small businesses.B:The fall in prices will small businesses.答案:be beneficial to4.A:It is a good film.I haven’t seen a film like this for years. B:I haven’t seen film this for years.答案:as good a;as5.A:She is proud that she has got three gold medals in the Paralympic Games.B:She is proud three gold medals in the Paralympic Games.答案:to have gotB级:能力提升Ⅲ.阅读理解阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

2020高考地理过程类模拟题练习7题(附答案)

2020高考地理过程类模拟题练习7题(附答案)

2020高考地理过程类模拟题练习题1.(安徽省江南十校2019-2020学年高三4月综合素质测试)阅读图文材料,完成下列要求。

(24分)铁板洲位于长江下游距离河口约600 km的微弯河段,其下游200 m处有一个相邻沙洲——和悦洲,可认为是一对子母洲。

甲图示意铁板洲、和悦洲的地理位置,乙图示意1998-2016年铁板洲、和悦洲的面积变化状况。

(1)分析铁板洲、和悦洲的形成过程。

(4分)(2)指出1998-2016年铁板洲、和悦洲面积变化状况的异同,并分析原因。

(8分)(3)列举研究铁板洲、和悦洲面积变化可采用的方法。

(4分)(4)指出铁板洲被水流侵蚀的主要部位,并说明原因。

(8分)【答案】1.(24分)(1)(4分)①长江中上游支流众多,径流量大,携带泥沙量大;②铁板洲、和悦洲所在河段的下游变窄,排水不畅,水流速度变缓,泥沙堆积。

(2)(8分)变化状况的异同:铁板洲、和悦洲的面积总体呈下降趋势,(1分)且铁板洲的下降速度更快(1分)。

原因:①长江生态环境的治理及上游水库的修建,使泥沙含量减少,沉积量变少;②枯水期径流增加,河流沉积作用减缓,侵蚀增强,导致沙洲面积减小;③铁板洲位于和悦洲上游,受到的侵蚀更加明显,面积下降更快。

(3)(4分)方法一:采用遥感测量数据,对相近水位时遥感图像进行对比,直观地反映洲体面积的变化。

方法二:采用人工实际测量的数据,也可反映洲体各部分的面积变化情况。

(4)(8分)铁板洲的侵蚀作用主要位于洲头(1分)及洲体西北侧(1分)。

原因:①洲头正对上游来水方向,侵蚀较强;②受到洲头的阻挡,水流分为左右两支,其洲体西北侧水流较大;③加之受地转偏向力的影响,洲体西北侧侵蚀作用更为明显。

2.(福建省龙岩市2019-2020学年高三5月质检)阅读图文资料,回答下列问题。

(24分)翡翠岛沙丘位于河北省秦皇岛市昌黎黄金海岸(国家级自然保护区)南部,古滦河(途经浑善达克等沙地)入海口附近,沿海一侧到处可见列阵沙坝,被称为“大海与沙漠的吻痕”。

高三英语《非谓语动词》专题精选练习7(含答案)

高三英语《非谓语动词》专题精选练习7(含答案)

高三英语《非谓语动词》专题精选练习7(含答案)学校:___________姓名:___________班级:___________考号:___________一、单项选择1.The job market and the social expectations of students,with the education system, form a big challenge for society.A.combine B.to combineC.combining D.combined2.Though measures have now been taken to prevent further price hikes, many people remain over the rising cost of food.A.concerning B.concernsC.concern D.concerned3.The boy will make a lot of trouble when ____________ alone.A.leaving B.leave C.left D.being left4.My father insisted that every minute____ made full use of _______the work well. A.be, to do B.has been, doingC.be, doing D.has been, to do5.---Have all the mysteries been cleared up?--- Almost. But ______ only one question ______.A.there remains; answered B.it remains; to be answeredC.there remains; to be answered D.it remains; answered6.________ some more chairs,tables and so on, the room looked more beautiful. A.Furnished with B.Furnished byC.To furnish with D.Furnishing with7.________ to the hot weather here was more difficult than I had expected. A.Adjusting B.AdoptingC.Relating D.Using8.________ from Milan Trenc's novel,the film Night at the Museum brings to life a world where dinosaurs wander the earth.A.To be adapted B.AdaptingC.Having adapted D.Adapted9.—How is the man injured in the earthquake?—The doctor said if ________ in a proper way,he was likely to be saved. A.treated B.treatingC.is treated D.to be treated10.________ in his book, he didn't notice me ________ I entered the room. A.Devoted; when B.Absorbed; while C.Absorbed; when D.Devoted; while11.—What is the Group G8?—Oh, it is a group ________ the eight of the richest countries or areas of theworld.A.consisting of B.consists ofC.consisted of D.is consisted of12.________Tom to be fit for the office, the boss________taking him on. A.Consider;considered B.Considering;considering C.Considering;considered D.Considered;considering 13.Did you have trouble ________the post office?A.to have found B.with findingC.find D.in finding14.In freezing weather, snow can turn into ice, which is easy to ________.A.be slipped B.slipC.slip on D.be slipping15.—Li Ming is said ________ abroad.Do you know what country he will study in? —Yes, in London.A.to have studied B.to studyC.to be studying D.to have been studying16.________ by the policy, he decided to build a new factory.A.Being encouraged B.EncouragingC.Encouraged D.Having encouraged17.He didn't want to see anybody, so he spent six hours ________ in the small room. A.locked B.to lockC.locking D.being locked18.Eugene's never willing to alter any of his opinions.It's no use ________ with him. A.to argue B.arguedC.arguing D.having argued19.The interviewee hurried to the meeting room,only ________ that the interview was over.A.to tell B.having been toldC.to be told D.telling20.If ________ the same treatment again,he is sure to get well.A.giving B.being givenC.give D.given21.The airport ________ next year will help promote tourism in this area.A.being completed B.to be completedC.completed D.having been completed22.__________ in the area reported ___________three people robbing the bank with their heads wrapped in socks.A.Witness; to look at B.Witnesses; seeingC.Witnesses; looking out D.Witness; to see23.The man fell to the ground, his left foot_____ and blood ____ down from his mouth. A.breaking;running B.broken;runningC.breaking ; run D.broken; run24.—Come on,please give me some ideas about the project.—Sorry.With so much work _______ my mind,I almost break down.A.filled B.filling C.to fill D.being filled25.The woman, when _______ how her husband was injured, began to cry.A.asked B.to askC.asking D.ask26._____________in the poorest area of Glasgow, he had a long, hard road to becoming a football star.A.Being raised B.RaisingC.Raised D.To raise27.________on this report,the English government decided to ask Captain James Cook to go and look for this continent.A.Having based B.BasingC.Based D.To be based28.Mrs.Smith warned her daughter________after drinking.A.never to drive B.to never driveC.never driving D.never drives29.You can’t imagine what difficulty we had ________home in the snowstorm. A.walked B.walkC.to walk D.walking30.She bravely faced the difficulty she had ________ her English.A.studying B.studiedC.to study D.been studying31.______ in heavy school work, most senior three students have no free time to do what they want.A.Buried B.Having buriedC.Being buried D.To be buried32.(题文)The librarians ________ the books in the library as novels,which are popular with us.A.suppose B.classifyC.look D.insist33.——Can I smoke here? ——Sorry. We don’t allow _______here.A.people smoking B.people smoke C.to smoke D.smoking 34.Though a typhoon is on the way, people are still looking forward ______ the outdoor concert by the pop singer.A.to canceling B.not to cancelingC.not to cancel D.to not canceling35.The moment the cat heard the mice _______ noises, it rushed out ________ the door. A.make, from B.making, behindC.make, from behind D.making, from behind二、用所给词的正确形式填空单句语法填空36.____________ (bury) in the novel, the boy didn’t raise his head and forgot to eat anything.37.____________ (addict) to the computer games, Alice hardly goes to work.38.____________ (know) the address and any information, I wasn’t able to contact him. 39.____________ (show) around Tian’anmen Square, the tourists were taken to visit the Palace Museum.40.Housing price is rising sharply. Such ____________ (be) the case, we are very lucky to have a house of our own.41.____________ (translate) into three foreign languages, the book sells well.42.____________ (beat), children were not discouraged by the result.43.____________ (write) in a hurry, this composition was not well constructed.44.____________ (suffer) from heart trouble for years, Professor White has to take some medicine with him wherever he goes.45.The building ____________ (build) now is said to be intended for students not for teachers.46.(1) I am glad to see the day is bright, with a fresh breeze ______ (blow).(2) She sat on the chair thinking about something, with her head ______ (bend).(3) With a lot of work ______ (do), I cannot go to travel with you next week.用所给词的适当形式填空47.The man _________ (wear) a sad look said,"I’ve lost my wallet."48.How __________________________(solve) the water problem will be discussed at the meeting next Monday.49.When he woke up, he found himself___________(lie) in hospital.50.The room with the windows______(face)north needs______ (clean).51.—How do you deal with the problem?—The key to_________(solve) the problem is to meet the demand _______ (make) by the customers.52.We found that the room was empty except for a cupboard____________(stand) in one comer.53.The teacher asked us not to leave the water______(run) when we left the lab. 54.The big earthquake hit the area several days ago,_______(cause) the deaths of some people.55.____ (blame) for the terrible accident,the driver felt angry and claimed to be innocent.56.______ (collect) enough information about the experiment is quite necessary to make sure that data is correct.语法专练57.I think it is no use________.(expect)to get a bargain these days.58.They have just come here to get down to________(repair)the broken windows. 59.We greatly appreciate you________(give)us a timely hand when faced with trouble. 60.________(leave)alone in the big house is the most frightening moment for the little boy. 61.She strongly disliked________(speak)to like that.62.The books you bought last week require ________(arrange)on the shelves right now. 63.Many boys dream of ________(become)the best football player in China. 64.With Hong Kong and Macao’s return,Taiwan’s________(reunite)eventually with the motherland is a matter of time.65.It is difficult to imagine him________(become)such a famous actor in the world. 66.I seem to remember________(give)a chance to try this method then.单句语法填空67.There is no sense________(ask)questions if you don’t listen to the answer. 68.Everyone you meet deserves ________(greet)with a smile.69.I insisted on my father as well as my sister________(stay)with me in Beijing. 70.The investment adviser recommends________(buy)shares in Aircraft Company. 71.I’m sure the day will come when you regret________(turn)down his requests. 72.You can make up an excuse to avoid________(go)out with him.73.The discovery of new evidence has led to the real murderer________(catch). 74.Her face took on a________(worry)expression after hearing the news.75.Mr. Smith is such a man always________(occupy)himself in taking care of the elderly here.76.________(attend)this course will be an advantage for anyone hoping to be promoted.语法专练77._________ (accomplish) the homework, he went out to meet his friends.78.________ (practice) English every day, you’ll master it well step by step.79.What a pity that ________ (work) so hard, he fails again!80.________ (see ) those pictures, she remembered her childhood.81.There is mud and water everywhere, ________ (make) it difficult to travel from place to place.82.________ (investigate) the event careful, he found something he had not known before. 83.The children ran out of the room, ________ (laugh) and talking merrily.84.________ (follow) the old man, the young people started walking slowly.85.Time ________ (permit), we’d better have a rest at this weekend.86.They stood there for half an hour ________ (observe) the stars in the sky.87.________ (judge) from what he said, she must be an honest girl.88.The big fire lasted nearly two day, ________ (leave) nothing valuable.89.________ (know) his address, I can’t return this book to him.90.________ (travel) by car, we visited many places of interest in Beijing.91.It ________ (be) the National Day today, the streets are very crowded.单句语法填空92.Do you know when the Great Wall first came into _______(be)?93.Please put your luggage here for safety __________(inspect).94.That will make a good ________ (end) to the book.95.With an article __________ (write),I have to stay up late tonight.96.Suddenly they noticed a house ________ two big trees standing in front of it.97.It was not long ________ his dream came true.98.I don't like the way __________ you speak to your mother.99.He sat at the corner so _________ he survived the accident.填写空白处所需的内容(1个单词)或用所给词的正确形式填空100.The hall was extremely big,________(measure) 200 metres long and 100 metres wide.101.The noise outside stopped me settling down ________ my lessons.102.________ (surround) by trees and flowers,our school looks very beautiful. 103.All the factors ________ (consider),the planned trip will have to be called off. 104.Difficult as it was,I managed ________(persuade) him into ________ (give) up his plan.三、选用适当的单词或短语补全句子105.(1) Last week I had my bike ________ (repair).(2) Last week he had my father ________ (repair) his bike.(3) Fm very sorry for having you ________ (wait) outside for long.(4) I have something important ________ (tell) you.(5) Sir, do you have anything ________ (type) this afternoon? If there is nothing to do, I wonder if I can ask for leave.选词填空106.We decided to take a plane ________ drive to visit Canada.107.We ________ a plane in the evening,and at dawn,we were over Canada. 108.We ________ many lakes and mountains and the beauty was beyond all praise. 109.They’d like to see their daughter ________,get married,and have kids.110.Did you really write the report ________ last Sunday morning?四、用适当的词完成句子单句语法填空111.I don’t think ________ difficult for a Chinese student to master a foreign language within five years.112.A terrible accident happened last night, ________ (result) in heavy losses.113.The general gave the order ________ the soldiers should cross the river at once. 114.Father is opposed to ________ (spend) much time watching TV because it’s a waste of time.115.Some researchers believe that ________ is no doubt that human will go to Mars one day. 116.If you make up your mind to do so, then you should realize it may have serious___________ (consequence).117.It wasn’t long ________ he realized he had made a serious mistake.118.The elephant is the largest land animal in ________ (exist) today.119.His life goal is to make contributions to ________ (help) the poor in society.120.It is not getting all you want but enjoying all you have ________ brings you happiness.五、单句改错单句改错121.Mr. Li arrived at the train station twenty minutes ago, but his train didn’t come yet.___________________________________________________________________________ _________________122.My brother has left for America on business upon my arrival, so I didn’t have a chance to see him off.___________________________________________________________________________ _________________123.We went to the airport early in order to have enough time check in.___________________________________________________________________________ _________________124.Which the proverb goes, “The enemy in disguise is just like the wolf in sheep’s clothing.”___________________________________________________________________________ _________________125.He has kept on learning English by radio for three years without interrupting.___________________________________________________________________________ _________________126.It is assuming that mental health is related to physical health.___________________________________________________________________________ _________________127.The new report has great significant for the next step of economic development.___________________________________________________________________________ _________________128.It was raining heavily, but he went on working in the field regardless the bad weather. ___________________________________________________________________________ _________________129.As many as 150 workers died in the accident. If only the employers paid enough attention to the safety measures!____________________________________________________________________________________________130.In the first half of this year the total sales rose by 20 per cent as comparing with that of last year.___________________________________________________________________________ _________________单句改错131.Giving an opportunity, we can surprise the world.___________________________________________________________________________ __132.The thief was brought in, with two hands tying behind his back.___________________________________________________________________________ __133.Weather permitted, we can go on an outing.___________________________________________________________________________ __134.Generally speaking, a teacher won’t scold you unless annoying.___________________________________________________________________________ __135.Judged from what she said, she was lying.___________________________________________________________________________ __136.Defeating by his opponent, he never gave up hope.___________________________________________________________________________ __137.Not having been completed the programme, we have to stay in France for another five weeks.___________________________________________________________________________ __138.Facing with so much trouble, he failed to finish his task on time.___________________________________________________________________________ __139.After his journey from abroad, Jack returned home, being exhausted.___________________________________________________________________________ __140.Giving that you told me the truth, I wouldn’t punish you.___________________________________________________________________________ __六、短文改错141.短文改错It is three years now since I graduate from Xinhua High School. Last Sunday, the class that I was in held a get-together, which took us a long time to prepare. It was indeed not easy to get in touch with everybody and a properly time for all of us. We all enjoyed a precious day greatly, remember the time we spent together. It reminded us the interesting stories and the people they were familiar with. It was a pity which some of us were not present as they had gone to abroad for further studies. And they called back or sent greeting card from different places.七、汉译英翻译句子142.因手术后还没有完全康复,医生建议Mary再住院两周。

星火英语巅峰训练 七合一必刷题高三

星火英语巅峰训练 七合一必刷题高三

星火英语巅峰训练七合一必刷题高三
《星火英语·巅峰训练:七合一必刷题(高三)》是一本针对高三学生的英
语练习册,包含了七种不同类型的练习题,旨在帮助学生全面提高英语能力。

以下是该书的详细介绍:
1. 词汇练习:本书包含了大量的词汇练习题,帮助学生记忆和掌握高考必备词汇。

2. 语法练习:涵盖了高中英语语法的各个方面,包括时态、语态、虚拟语气、非谓语动词等等,通过练习帮助学生掌握语法知识。

3. 阅读理解:提供了各种类型的阅读材料,如说明文、议论文、记叙文等,旨在提高学生的阅读能力和阅读速度。

4. 完形填空:通过完形填空的练习,帮助学生提高语篇理解和组织语言的能力。

5. 写作训练:包括写作指导和范文,帮助学生掌握各种类型的写作技巧,提高写作水平。

6. 听力训练:包含听力练习和听力材料,帮助学生提高英语听力水平。

7. 模拟试题:本书最后还附有几套模拟试题,供学生自测和巩固所学知识。

总的来说,《星火英语·巅峰训练:七合一必刷题(高三)》是一本非常全面的练习册,适合高三学生在复习备考时使用。

通过大量的练习和实践,学生可以全面提高英语能力,为高考做好充分准备。

中职高三语文模拟练习题7-8

中职高三语文模拟练习题7-8

③姜还是老的辣,这个人那么难缠,______叫你给说服了。
A.淡薄 蜕化 毕竟
B.淡薄 退化 到底
C.淡泊 退化 到底
D.淡泊 蜕化 毕竟
4.下列作家、作品、人物对应不正确的一项是( D )
A.《雷雨》——曹禺——鲁侍萍 B.《鸿门宴》——司马迁——刘邦 C.《红楼梦》——曹雪芹——贾宝玉 D.《荷花淀》——沈从文——水生嫂
裁对应错误的一项是( C)
A.海明威——《老人与海》——20世纪——老人——小说 B.曹雪芹——《林黛玉进贾府》——清代——林黛玉—— 小说 C.白居易——《琵琶行》——宋代——琵琶女——散文 D.孙犁——《荷花淀》——现代——水生嫂——小说
15.下列古诗词默写正确的一项是( C )
A.乱石穿空,惊淘拍岸,卷起千堆雪。 B.人生如梦,一樽还累江月。 C.蚓无爪牙之利,筋骨之强。 D.执手相看泪眼,竞无语凝噎。
B.不恰当的。() B.吗,同学们? D.能写和能制印
10.下列句子中加点词语的意义与现代汉语相
同的一项是( A )
A.才能不及中人。 B.君子博学而日参省乎己。 C.蹑足行伍之间。 D.沛公居山东时。
11.下列每对加点字的读音都不相同的一项是( A )
A.模样/模范 翘尾巴/翘首以待 碑帖/俯首帖耳 B.应允/应变 独角戏/勾心斗角 奢靡/所向披靡 C.殷红/殷实 血淋淋/呕心沥血 牵强/强词夺理 D.累及/连累 梁山泊/淡泊明志 屏障/敛声屏气
A.B.解释说明 C.表示话题转换或意思转折 D.表示声音的延长
20.下列没有通假字的一项是( B )
A.一尊还酹江月 B.盖其又深,则其至又加少矣 C.君子生非异也 D.或师焉,或不焉
5.下列古诗词默写不正确的一项是( C )

高三一轮复习第七次数学周练习

高三一轮复习第七次数学周练习

高三下学期第七周数学周测试题一.选择题(共8小题,每小题5分)1.已知集合A={x|y=},B={x∈R|a≤x≤a+l},若A∩B=∅,则实数a的取值范围为()A.[﹣3,2]B.(﹣∞,﹣3)∪(2,+∞)C.[﹣2,1]D.(﹣∞,﹣3]∪[2,+∞)2.当1<m<2时,复数(3+i)+m(2﹣i)在复平面内对应的点位于()A.第一象限B.第二象限C.第三象限D.第四象限3.第24届冬季奥林匹克运动会,将于2022年2月在北京和张家口举行,北京冬奥会会徽以汉字“冬”为灵感来源,运用中国书法的艺术形态,将厚重的东方文化底蕴与国际化的现代风格融为一体,呈现出新时代的中国新形象、新梦想.会徽图形上半部分展现滑冰运动员的造型,下半部分表现滑雪运动员的英姿.中间舞动的线条流畅且充满韵律,代表举办地起伏的山峦、赛场、冰雪滑道和节日飘舞的丝带,下部为奥运五环,不仅象征五大洲的团结,而且强调所有参赛运动员应以公正、坦诚的运动员精神在比赛场上相见.其中奥运五环的大小和间距按以下比例(如图):若圆半径均为12,则相邻圆圆心水平距离为26,两排圆圆心垂直距离为11,设五个圆的圆心分别为O1,O2,O3,O4,O5,若双曲线C以O1,O3为焦点、以直线O2O4为一条渐近线,则C的离心率为()A.B.C.D.4.已知m,n,s,t∈R*,m+n=4,+=9,其中m,n是常数,且s+t的最小值是,点M(m,n)是曲线﹣=1的一条弦AB的中点,则弦AB所在直线方程为()A.x﹣4y+6=0B.4x﹣y﹣6=0C.4x+y﹣10=0D.x+4y﹣10=0 5.已知0.5a=5b=3,则()A.ab<0<a+b B.ab<a+b<0C.a+b<ab<0D.a+b<0<ab6.如图所示,△ABC的面积为,其中AB=2,∠ABC=60°,AD为BC边上的高,M为AD的中点,若,则λ+2μ的值为()A.B.C.D.7.单位正四面体的外接球内接的最大正三角形边长为()A.B.C.D.8.已知函数在(0,1)内恰有3个极值点和4个零点,则实数ω的取值范围是()A.B.C.D.二.多选题(共4小题)(多选)9.已知函数f(x)=|sin x||cos x|,则下列说法正确的是()A.f(x)的图象关于直线对称B.f(x)的周期为C.(π,0)是f(x)的一个对称中心D.f(x)在区间上单调递增(多选)10.下列选项中正确的是()A.若平面向量,满足,则的最大值是5B.在△ABC中,AC=3,AB=1,O是△ABC的外心,则的值为4C.函数f(x)=tan(2x﹣)的图象的对称中心坐标为,k∈Z D.已知P为△ABC内任意一点,若,则点P为△ABC的垂心(多选)11.已知数列{a n}的前n项和为S n,a1=1,S n+1=S n+2a n+1,数列的前n项和为T n,n∈N*,则下列选项正确的是()A.数列{a n+1}是等比数列B.数列{a n+1}是等差数列C.数列{a n}的通项公式为D.T n>1(多选)12.如图,抛物线C:y2=4x的焦点为F,过点F的直线与抛物线C交于M,N 两点,过点M,N分别作准线l的垂线,垂足分别为M1,N1,准线l与x轴的交点为F1,则()A.直线F1N与抛物线C必相切B.C.|F1M|•|F1N|=|F1F|•|MN|D.|FM1|•|FN1|=|FF1F|•|M1N1|三.填空题(共4小题,每小题5分)13.已知数列{a n}满足a1=a5=0,|a n+1﹣a n|=2,则{a n}前5项和的最大值为.14.《九章算术》中的“商功“篇主要讲述了以立体几何为主的各种形体体积的计算,其中堑堵是指底面为直角三角形的直棱柱.如图,在堑堵ABC﹣A1B1C1中,M是A1C1的中点,AB=2AA1=2AC,,,若,则x+y+z =.15.已知函数f(x)=在区间(a,a+)上存在极值,则实数a的取值范围是.16.过抛物线y2=2px(p>0)焦点F的直线与抛物线的交于点A,B,O是坐标原点,且满足,S△AOB=,则p=()A.2B.C.4D.高三下学期第七周数学周测试题参考答案与试题解析一.选择题(共8小题)1.已知集合A={x|y=},B={x∈R|a≤x≤a+l},若A∩B=∅,则实数a的取值范围为()A.[﹣3,2]B.(﹣∞,﹣3)∪(2,+∞)C.[﹣2,1]D.(﹣∞,﹣3]∪[2,+∞)【分析】可求出A={x|﹣2≤x≤2},然后根据A∩B=∅可得出a的范围.【解答】解:A={x|4﹣x2≥0}={x|﹣2≤x≤2},B={x|a≤x≤a+1},且A∩B=∅,∴a>2或a+1<﹣2,∴a<﹣3或a>2,∴a的取值范围为(﹣∞,﹣3)∪(2,+∞).故选:B.【点评】本题考查了一元二次不等式的解法,交集和子集的定义,交集的运算,考查了计算能力,属于基础题.2.当1<m<2时,复数(3+i)+m(2﹣i)在复平面内对应的点位于()A.第一象限B.第二象限C.第三象限D.第四象限【分析】根据已知条件,结合复数的四则运算,以及复数的几何意义,即可求解.【解答】解:(3+i)+m(2﹣i)=3+2m+(1﹣m)i,∵1<m<2,∴3+2m>0,1﹣m<0,∴复数(3+i)+m(2﹣i)在复平面内对应的点(3+2m,1﹣m)位于第四象限.故选:D.【点评】本题主要考查复数的四则运算,以及复数的几何意义,属于基础题.3.第24届冬季奥林匹克运动会,将于2022年2月在北京和张家口举行,北京冬奥会会徽以汉字“冬”为灵感来源,运用中国书法的艺术形态,将厚重的东方文化底蕴与国际化的现代风格融为一体,呈现出新时代的中国新形象、新梦想.会徽图形上半部分展现滑冰运动员的造型,下半部分表现滑雪运动员的英姿.中间舞动的线条流畅且充满韵律,代表举办地起伏的山峦、赛场、冰雪滑道和节日飘舞的丝带,下部为奥运五环,不仅象征五大洲的团结,而且强调所有参赛运动员应以公正、坦诚的运动员精神在比赛场上相见.其中奥运五环的大小和间距按以下比例(如图):若圆半径均为12,则相邻圆圆心水平距离为26,两排圆圆心垂直距离为11,设五个圆的圆心分别为O1,O2,O3,O4,O5,若双曲线C以O1,O3为焦点、以直线O2O4为一条渐近线,则C的离心率为()A.B.C.D.【分析】建立平面直角坐标系,可得双曲线的渐近线方程,由O4(﹣13,﹣11)在渐近线上,可得a,b的关系,即可求得离心率.【解答】解:如图建立平面直角坐标系,依题意,可得双曲线的渐近线方程为,由O4(﹣13,﹣11)在渐近线上,可得﹣11=•(−13)即可得,则双曲线C的离心率为=.故选:B.【点评】本题考查了双曲线的渐近线、离心率,属于中档题.4.已知m,n,s,t∈R*,m+n=4,+=9,其中m,n是常数,且s+t的最小值是,点M(m,n)是曲线﹣=1的一条弦AB的中点,则弦AB所在直线方程为()A.x﹣4y+6=0B.4x﹣y﹣6=0C.4x+y﹣10=0D.x+4y﹣10=0【分析】由已知求出s+t取得最小值时m,n满足的条件,再结合m+n=4求出m,n,再用点差法求出直线的斜率,从而得直线方程.【解答】解:∵,当且仅当,即取等号,∴,又m+n=4,又m,n为正数,∴可解得,设弦两端点分别为(x1,y1),(x2,y2),则,两式相减得,∵x1+x2=4,y1+y2=4,∴,∴直线方程为,即x﹣4y+6=0.故选:A.【点评】本题考查了直线与双曲线的综合运用,属于中档题.5.已知0.5a=5b=3,则()A.ab<0<a+b B.ab<a+b<0C.a+b<ab<0D.a+b<0<ab 【分析】化简得a=log0.53<0,b=log53>0,从而可得ab<0,化简=+,从而比较大小.【解答】解:∵0.5a=5b=3,∴a=log0.53<0,b=log53>0,∴ab<0,=+=log35+log30.5=log32.5,又∴0<log32.5<1,∴0<<1,∴ab<a+b<0,故选:B.【点评】本题考查了指数式与对数式的互化及对数的运算,属于基础题.6.如图所示,△ABC的面积为,其中AB=2,∠ABC=60°,AD为BC边上的高,M为AD的中点,若,则λ+2μ的值为()A.B.C.D.【分析】根据三角形的面积公式可求得BC,再根据AD为BC边上的高,求出BD,从而可得出点D的位置,再根据平面向量的线性运算将用表示,再根据平面向量基本定理求出λ,μ,即可得解.【解答】解:,所以BC=3,因为AD为BC边上的高,所以,因为M为AD的中点,所以=,又因为,所以,所以.故选:C.【点评】本题考查平面向量的基本定理,考查学生的运算能力,属于中档题.7.单位正四面体的外接球内接的最大正三角形边长为()A.B.C.D.【分析】由题意首先求得外接球半径,然后计算外接球内接的最大正三角形边长即可.【解答】解:如图为单位正四面体A﹣BCD.过点A作面BCD的垂线交面于点E,F为外接球球心,则E为△BCD的中心,,∴.不妨设AF=R.在Rt△BEF中,由勾股定理,得.即,解得.∴最大正三角形的边长为.故选:C.【点评】本题主要考查球与多面体的切接问题,空间想象能力的培养等知识,属于基础题.8.已知函数在(0,1)内恰有3个极值点和4个零点,则实数ω的取值范围是()A.B.C.D.【分析】由第4个正零点小于1,第4个正极值点大于等于1可解.【解答】解:,因为x∈(0,1),所以,又f(x)在(0,1)内恰有3个极值点和4个零点,所以,解得,所以实数ω的取值范围是.故选:A.【点评】本题考查了根据函数的零点和极值点求参数的取值范围,考查了转化思想,属中档题.二.多选题(共4小题)(多选)9.已知函数f(x)=|sin x||cos x|,则下列说法正确的是()A.f(x)的图象关于直线对称B.f(x)的周期为C.(π,0)是f(x)的一个对称中心D.f(x)在区间上单调递增【分析】化简函数f(x),根据函数的单调性与对称性和周期性,判断选项中的命题是否正确即可.【解答】解:函数f(x)=|sin x||cos x|=|sin x cos x|=|sin2x|,画出函数图象,如图所示;所以f(x)的对称轴是x=,k∈Z;所以x=是f(x)图象的对称轴,A正确;f(x)的最小正周期是,B正确;f(x)是偶函数,没有对称中心,C错误;x∈[,]时,2x∈[,π],sin2x≥0,所以f(x)=|sin2x|是单调减函数,D错误.故选:AB.【点评】本题考查了三角函数的图象与性质的应用问题,也考查了命题真假的判断问题,是基础题.(多选)10.下列选项中正确的是()A.若平面向量,满足,则的最大值是5B.在△ABC中,AC=3,AB=1,O是△ABC的外心,则的值为4C.函数f(x)=tan(2x﹣)的图象的对称中心坐标为,k∈ZD.已知P为△ABC内任意一点,若,则点P为△ABC的垂心【分析】对A选项,根据平面向量数量积的定义与性质,函数思想即可求解;对B选项,根据三角形外心的性质,向量的线性运算及向量数量积的几何定义即可求解;对C选项,根据正切函数的图象性质即可求解;对D选项,根据向量数量积的性质,三角形垂心的概念即可求解.【解答】解:对A选项,∵,∴====≤=5,∴的最大值是5,∴A选项正确;对B选项,∵在△ABC中,AC=3,AB=1,O是△ABC的外心,∴====4,∴B选项正确;对C选项,令,可得x=,k∈Z,∴f(x)=tan(2x﹣)的图象的对称中心坐标为(,0),k∈Z,∴C选项错误;对D选项,∵,∴,∴,∴PB⊥CA,同理P A⊥BC,PC⊥AB,∴点P为△ABC的垂心,∴D选项正确.故选:ABD.【点评】本题考查平面向量数量积的定义与性质,函数思想,三角形外心的性质,正切函数的图象性质,三角形垂心的概念,属中档题.(多选)11.已知数列{a n}的前n项和为S n,a1=1,S n+1=S n+2a n+1,数列的前n项和为T n,n∈N*,则下列选项正确的是()A.数列{a n+1}是等比数列B.数列{a n+1}是等差数列C.数列{a n}的通项公式为D.T n>1【分析】由a n+1=S n+1﹣S n=2a n+1可得,,可判断A,B的正误,再求出a n,可判断C的正误,利用裂项相消法求T n,可判断D的正误.【解答】解:因为S n+1=S n+2a n+1,所以a n+1=S n+1﹣S n=2a n+1,a n+1+1=2a n+2,即,且a1+1=2,所以数列{a n+1}是首项为2,公比为2的等比数列,故A正确,B错误;所以,即,故C正确;因为,所以,故D错误;故选:AC.【点评】本题考查了等比数列的判断和裂项相消求和,属于中档题.(多选)12.如图,抛物线C:y2=4x的焦点为F,过点F的直线与抛物线C交于M,N 两点,过点M,N分别作准线l的垂线,垂足分别为M1,N1,准线l与x轴的交点为F1,则()A.直线F1N与抛物线C必相切B.C.|F1M|•|F1N|=|F1F|•|MN|D.|FM1|•|FN1|=|FF1F|•|M1N1|【分析】选项A,联列方程,整理成y的一元二次方程,用判别式判定是否恒为零即可;选项B,由•=4m2≥0知,选项B正确;选项C,计算得|F1F||MN|=8m2+8,|F1M||F1N|=4m2+8,两式不恒等,故C不正确;选项D,先计算•,从而得⊥,由等面积法知选项D正确.【解答】解:由已知F(1,0),F1(﹣1,0),设过点F的直线方程为:x=my+1,设点M(my1+1,y1),N(my2+1,y2),则M1(﹣1,y1),N1(﹣1,y2),F1(﹣1,0),由,得y2﹣4my﹣4=0,所以y1+y2=4m,y1y2=﹣4,选项A:直线F1N的方程为y=(x+1),联立方程组得:,所以y2﹣4[(m+)y﹣1]=0,Δ=16(m+)2﹣16不恒为零,故选项A不正确;选项B:由题得=(my1+2,y1),=(my2+2,y2),而•=m2y1y2+2m(y1+y2)+4+y1y2=4m2≥0,所以cos<•>=≥0,所以∠MF1N≤,故B正确;选项C:|F1F|=2,|MN|=|x1+x2+2|=|m(y1+y2)+4|=4m2+4,所以|F1F||MN|=8m2+8;|F1M|2=(my1+2)2+y12,|F1N|2=(my2+2)2+y22,所以|F1M|2•|F1N|2=[(my1+2)(my2+2)]2+y22(my1+2)2+y12(my2+2)2+y12y22=(4m2+4)2﹣32m2+64m2+48=16(m2+2)2,所以|F1M||F1N|=4(m2+2)=4m2+8,所以选项C不正确;选项D:∵=(﹣2,y1),=(﹣2.y2),∴•=4+y1y2=4﹣4=0,∴⊥,在△M1FN1中,S=|M1N1|•|F1F|=|FM1||FN1|,故D正确.故选:BD.【点评】本题考查抛物线的应用,属于中档题.三.填空题(共4小题)13.已知数列{a n}满足a1=a5=0,|a n+1﹣a n|=2,则{a n}前5项和的最大值为8.【分析】由题意,分类讨论,求出数列的前5项,从而得出结论.【解答】解:已知数列{a n}满足a1=a5=0,|a n+1﹣a n|=2,则{a n}前5项分别为0,﹣2,0,﹣2,0;或0,﹣2,﹣4,﹣2,0;或0,2,0,2,0;或0,2,4,2,0;故当{a n}前5项分别为0,2,4,2,0 时,前5项的和最大,为0+2+4+2+0=8,故答案为:8.【点评】本题主要考查等差数列的定义,数列求和,属于基础题.14.《九章算术》中的“商功“篇主要讲述了以立体几何为主的各种形体体积的计算,其中堑堵是指底面为直角三角形的直棱柱.如图,在堑堵ABC﹣A1B1C1中,M是A1C1的中点,AB=2AA1=2AC,,,若,则x+y+z=.【分析】根据已知条件,结合空间向量的线性运算,即可求解.【解答】解:由图可知:,又因为,所以,所以,所以,所以,.故答案为:.【点评】本题主要考查空间向量的线性运算,属于基础题.15.已知函数f(x)=在区间(a,a+)上存在极值,则实数a的取值范围是(,1).【分析】求函数f(x)的导数,利用f′(x)=0求出极值点,再结合题意列出不等式求解集即可.【解答】解:因为函数f(x)=,x>0,所以f′(x)=﹣,令f′(x)=0,解得x=1,当f′(x)>0,即0<x<1,函数单调递增,当f′(x)<0,即x>1,函数单调递减,所以1是函数的极值点,又因为函数f(x)在区间(a,a+)(a>0)上存在极值,所以a<1<a+,解得<a<1,所以实数a的取值范围是(,1).故答案为:(,1).【点评】本题主要考查了利用导数研究函数的单调性和极值的应用问题,也考查了运算求解能力,是中档题.16.过抛物线y2=2px(p>0)焦点F的直线与抛物线的交于点A,B,O是坐标原点,且满足,S△AOB=,则p=()A.2B.C.4D.【分析】过A,B作抛物线准线的垂线,垂足分别为C,D,由AB=3FB,丨AC丨=2丨BD丨,求得丨BE丨,可得直线AB的方程,与抛物线联立方程,表示|AB|的长,进而可表示三角形的面积,根据面积求得p的值【解答】解:不妨设直线AB的斜率k>0,过A,B作抛物线准线的垂线,垂足分别为C,D,过B作BE⊥AC于E,由AB=3FB,∴=2,丨丨=2丨丨,即丨AC丨=2丨BD丨,∴E为AC的中点,即丨AE丨=丨AB丨,∴丨BE丨==丨AB丨,由S△OAB=S OAF+S OBF=丨BE丨•丨OF丨=p丨AB丨,S△OAB=丨AB丨,∴由丨AE丨=丨AB丨,则直线AB斜率为k AB=±2,直线AB的方程y=2(x ﹣1),,整理得:8x2﹣10px﹣8p2=0,则x1+x2=,则丨AB丨=x1+x2+p=+p,∴S△OAB=(+p),∴(+p)=,解得p=2.【点评】本题考查抛物线的标准方程,直线与抛物线的位置关系,考查韦达定理,抛物线的焦点弦公式,考查计算能力,属中档题.。

江苏省包场高级中学2018届高三下学期语文小练习7+Word版含答案

江苏省包场高级中学2018届高三下学期语文小练习7+Word版含答案

2018届包场中学高三(下)语文小练习7(教师)1. 在下面一段话空缺处依次填入词语,最恰当...的一组是( )孟子他们不受诸候待见,只能暗中羡慕苏秦、张仪,却又对他们冷眼旁观,眼看着人家把天下闹得动荡不安,,而自己的呼声愈来愈被了,愈来愈受诸侯的白眼了,,便只好退回房里,把满腔不平和才气都写在竹简上,给后世留下一部部好文章。

A.沸反盈天淹没每况愈下B.拂反盈天湮没每况愈下C.沸沸扬扬淹没江河日下D.沸沸扬扬湮没江河日下答:A。

试题分析:沸反盈天:形容人声喧闹,乱成一片。

沸沸扬扬:形容人声喧闹。

此句形容天下大乱,用“沸反盈天”。

“淹没”也用来指泥沙或声音等盖过;“湮没”的意思是“埋没”,用于人或事物,此句用“淹没”。

每况愈下,多表形势,境况,是中性词,多含无奈,不满意味;而江河日下,多指国势,事物发展的没落;是贬义词,感情色彩,语义更重。

2. 下列加点字用语表达不准确...的一项是( )A.刚收到一份报告,请您钧裁..。

B.既然你把作品呈正..给我,我定会好好品读。

C.这本书我已读完了,现当璧还..,我们定当满足你的要求。

..为是。

D.感谢您的垂询答:B。

“呈正”是把自己的东西给别人看。

3. 下列诗句中,没有使用....比拟手法的一项是( )A.白雪却嫌春色晚,故穿庭树作飞花。

B.草树知春不久归,百般红紫斗芳菲。

C.菡萏香销翠叶残,西风愁起绿波间。

D.扬子江头杨柳春,杨花愁杀渡江人。

答:D。

“愁”的对象是“渡江人”,所以不是比拟。

4. 下面四组名人对联对应正确的一组是( )①赖社稷之灵,国已有君,自分一腔抛热血;竭肱股之力,继之以死,独留表白在人间。

②兵甲富于肠中,一代功名高宗室;忧乐关乎天下,千秋俎豆重苏台。

③正气贯人寰,河岳日星传万世;明禋崇庙观,丹心碧血照千秋。

④万点梅花,尽是孤臣泪;一抔故土,还留胜衣冠。

A. ①于谦②范仲淹③文天祥④史可法B. ①文天祥②范仲淹③于谦④史可法C. ①于谦②文天祥③史可法④范仲淹D. ①文天祥②史可法③于谦④范仲淹答:A。

高三物理练习题精选

高三物理练习题精选

高三物理练习题精选近年来,高中物理课程的考试要求和难度逐渐提高。

为了帮助高三学生复习物理知识,我们精选了一些经典练习题,希望能够对同学们的备考有所帮助。

以下是其中的一些例题:1. 一辆汽车以60 km/h的速度行驶,途中突然以5 m/s²的加速度减速,经过10秒后停下来。

请问汽车在减速过程中所行驶的距离是多少?2. 一个物体以10 m/s的速度垂直向上抛出,重力加速度为10 m/s²。

求物体从抛出到最高点所用的时间。

3. 两个物体,质量分别为2 kg和5 kg,分别以2 m/s²和5 m/s²的加速度水平向右运动。

求两个物体所受的合力是多少?4. 一个球从斜面上方以10 m/s的速度斜向上滚下,滚动过程中没有空气阻力。

球从斜面顶端滚到底端所用的时间是多少?5. 一辆汽车以20 m/s的速度通过一个半径为50 m的圆周率。

求汽车通过圆周率所受的向心力。

这些例题覆盖了高三物理考试中的常见知识点,例如速度、加速度、力等。

通过解答这些问题,同学们可以加深对物理概念的理解,并提高解题能力。

当然,复习物理知识不仅仅是解题,还需要对物理公式和定律的记忆和理解。

建议同学们平时多做题目,注重对物理公式的运用,并配合阅读相关的物理概念解释,加深对知识点的理解。

另外,还要注意复习时的思维方式和答题技巧,例如抽象思维能力、分析问题的能力等。

高三学习阶段是备考阶段,时间紧迫,希望同学们能够善于利用时间,高效地进行物理复习。

相信通过不断的练习和总结,大家一定能够在物理考试中取得好成绩。

最后,祝愿同学们取得优异的成绩,实现自己的理想!。

2025版微专题小练习历史考点小练7

2025版微专题小练习历史考点小练7

第7练隋唐制度的变化与创新授课提示:对应学生用书7页1.[2024·天津和平区高三一模]据史书记载,九品中正制下,选择中正的权力在中央,政府选择中正非常慎重,多数中正都符合“贤有识鉴”的标准;中正必须认真负责,不负责者都要受到弹劾。

这表明九品中正制()A.强化了中正官的道德意识B.有利于中央自上而下地管理C.安抚了世家大族的不满情绪D.导致了士族掌控了吏治选拔答案:B解析:根据材料“九品中正制下,选择中正的权力在中央,政府选择中正非常慎重”“中正必须认真负责,不负责者都要受到弹劾”可知,在魏晋时期的九品中正制下,中央对中正官的选拔有着严格的要求,并进行监督,有利于中央自上而下地管理,B项正确;材料体现的是中央政府对中正官的监督,非强化道德意识,排除A项;九品中正制维护的是世家大族的利益,并非意在安抚世家大族的不满情绪,排除C项;九品中正制是世家大族垄断政权的工具,D项错在因果关系颠倒,排除。

故选B项。

2.[2024·徐州市高三一模]延康元年,九品中正制正式颁行,中正评议包括“品”“状”“簿阀”三项。

西晋时,“簿阀”(祖、父两代的本朝官爵)成为定品的主要依据。

经过魏晋两代九品中正制的运行,在汉魏、魏晋政权更迭中立有功勋的家族居于高品,原本在东汉时同质性的世家大族出现了分化。

这表明九品中正制()A.提高了世家大族的政治地位B.扩大了封建统治的社会基础C.适应了魏晋政局变动的需要D.确保中央对地方控制的加强答案:C解析:根据材料魏晋两代九品中正制运行后,原本在东汉时地位一致的世家大族地位出现了分化,可知魏晋根据对朝廷做出的贡献大小,划定世家大族门第的等级高低,适应了朝代更迭、巩固统治的需要,C项正确;材料侧重强调九品中正制实行导致的世家大族分化,没有体现“提高了世家大族的政治地位”,排除A项;封建政权选拔人才的范围始终限定在世家大族里,无法扩大统治基础,排除B项;本题主旨为“九品中正制”,“中央对地方控制”与材料主旨不符,排除D项。

南京城区高三复习练习 (7)

南京城区高三复习练习 (7)

一、单选题(本题共15小题)1.如图所示,一物体静止在斜面上,当斜面的倾角θ逐渐增大而物体仍然静止在斜面上时:A.物体所受重力和静摩擦力的合力逐渐增大B.物体所受重力和支持力的合力逐渐增大C.物体所受支持力和静摩擦力的合力逐渐增大D.物质所受重力,支持力和静摩擦力的合力逐渐增大答案:B2.在静止的小车内,用细绳a和b系住一个小球,绳a与竖直方向成θ角,拉力为F a,绳b为水平状态,拉力为F b,如图所示,现让小车从静止开始向右做匀加速运动,此时小球相对于车厢的位置仍保持不变,则两根细绳的拉力变化情况是:A.F a变大,F b不变B.F a变大,F b变小C.F a变大,F b变大D.F a不变,F b变小答案:D3.穿过闭合回路的磁通量φ随时间t变化的图象分别如图①~②所示,下列关于回路中产生的感应电动势的论述,正确的是A.图①中回路产生的感应电动势恒定不变B.图②中回路产生的感应电动势一直在变大C.图③中回路在0~t1时间内产生的感应电动势小于在t1~t2时间内产生的感应电动势D.图④中回路产生的感应电动势先变小再变大答案:D4.关于物体的直线运动,下列论述中正确的是A.物体的运动速度较小,其加速度一定较小B.物体的运动速度减小,其位移一定减小C.物体运动的加速度较小,其速度变化一定较小D.物体运动的加速度减小,其速度变化一定减慢答案:D5.在负点电荷产生的电场中,以负点电荷所在处为球心的两个不同半径的球面图AB上,分别有a 、b 、c 、d 点,如图所示,则( ) A .a 、b 、c 三点场强相同 B .a 点电势高于c 点电势 C .b 点电势高于d 点电势 D .c 点电势低于d 点电势答案:C6.在LC 振荡电路中,某个瞬时电容器极板上的电量正在减少,则可知A .电路中的电流正在减小B .电路中的电容器两板间电压正在减小C .电路中的磁场能正在减小D .电路的振荡周期正在减小 答案:B7.在显像管的电子枪中,从炽热的金属丝不断放出的电子进入电压为U 的加速电场,设其初速度为零,经加速后形成横截面积为S 、电流为I 的电子束。

小题大做练习题高三

小题大做练习题高三

小题大做练习题高三在高三年级,学生们将面临重要的高考,而小题大做练习题被广泛应用于备考过程中。

这些练习题旨在帮助学生熟悉并掌握各个科目的知识点,提高解题能力。

本文将探讨小题大做练习题对高三学生备考的积极影响以及如何有效利用这种学习资源。

小题大做练习题的使用对高三学生备考至关重要。

首先,这种练习题形式简明扼要,涵盖了重要的知识点和解题思路。

通过反复做题,学生们能够加深对知识点的理解和记忆,并灵活运用于实际问题中。

其次,小题大做练习题适合高三学生备考的时间紧迫性。

学生们可以轻松地在短时间内完成一套练习题,从而提高解题速度和应对考试的能力。

此外,练习题的反馈机制也很重要。

学生们可以及时了解自己的弱点和不足之处,有针对性地进行复习和补充知识。

对于高三学生来说,如何有效利用小题大做练习题也是至关重要的。

首先,要根据自身备考情况和目标制定学习计划。

学生可以将每个科目的练习题分为不同的阶段,逐渐提高难度和复杂度。

其次,要注重细节和错误的分析。

当做练习题时,学生们应重点关注自己的错误和薄弱环节,并及时记录和整理,以便后续的复习和弥补。

此外,要合理安排做题时间和间隔。

学生们可以每天坚持一定的练习时间,同时给予足够的复习和休息时间,以充分巩固知识和保持良好的状态。

除了积极利用小题大做练习题,高三学生们还应该注意一些学习方法和技巧,以提高备考效果。

首先,要合理安排时间管理。

学生们需要充分利用每一天的时间,制定好学习计划,并按照计划严格执行。

其次,要注重系统复习。

高三学生们应该把握好课堂知识的学习,以及做练习题的实践,结合起来,形成一个良好的复习系统。

另外,要进行错题集整理。

不断总结和整理自己做错的题目,可以帮助学生们更深入地了解问题所在,避免类似错误的再次发生。

此外,要注重解题技巧的学习。

掌握一些常见题型的解题技巧,能够更快更准确地解决问题,提高解题效率。

综上所述,小题大做练习题在高三备考中起到了重要的作用。

通过合理利用和积极应用练习题,高三学生们可以提高解题能力,系统复习知识点,并实现备考目标。

高三英语摸底练习题(答案) (7)

高三英语摸底练习题(答案) (7)

高三摸底考试英语练习题(满分150分,考试时间90分钟)一、选择题:(本题共20小题,每小题3分,共60分.)1.—If you don’t like the red coat,take the blue one.—0K,but do you have_______size in blue?This one is a bit tight for me.A.bigB.a biggerC.the bigD.the bigger2.After the new technique was introduced,the factory produced_______tractors in 1988 as the _______year before.A.as twice many B.as many twice C.twice as many D.twice many as 3.—How did you find your visit to the museum?—I thoroughly enjoyed it.It was_______than I expected.A.far more interestingB.even much interestingC.so more interestingD.a lot much interesting4.If there were no examinations,we should have _______at schoo1.A.the happiest timeB.a more happier timeC.much happiest timeD.a much happier time5.On the river there is_______bridge.A.an old fine stoneB.a fine new woodC.a stone fine oldD.a new wood fine6.He _____you more help,even though he was very busy.A.might have given B.might give C.may have given D.may give 7.He _____at the meeting this morning.He was in hospital at the time.A.couldn’t have spokenB.mustn’t have spokenC.shouldn’t have spokenD.needn’t have spoken8.He must be in the classroom,_____he?A.mustn’tB.can’tC.isn’tD.can9.____did it take him to repair the computer?( )A bout toB.How oftenC.How longD.How far10.When he got to the station,the train___. ( )A.was leftB.had leftC .has leftD.would left11.in exams the___ you are,the____ mistakes you will make. ( )A.more carefully esB.more carefully fewerC.most carefully mostD.more carefully more12. i don't think he's ever been to the monkey island,___ ?( )A.isn't heB.don't heC.is itD.has he13.1'd like to know____. ( )A.when will he give back the tapeB.whether has he received higher education.C.that he has been busyD.whether she will join in our English education14.Are you still__a job? ( )A. looking atB. looking forC. looking intoD. looking after15.The new flat is four times____the old one.()A. bigger thanB. the sizeC. as bigger asD. the same as16.Have you ever been to the factory __they talked about the other day.()A. What areB. whereC.thatD. How much17.-Can you send text messages with sound and pictures to me?()-I should be able to. I just____________how to d0 it yet.A. don't work outB. didn't work outC. haven't worked outD. can't work out18.--Are you a singer as well as an actress?()-No. I'm not a singer__.A. at allB. after allC. in allD. for all19. We spent half an hour waiting for the bus()_____finally we went home on foot.A. For isB. Or andC. soD. but20.Every morning my little dog is the first.()______________up at my bed and gently wake me up.A. turnsB. to turnC. Turn isD. Turning二、翻译(30分)1. The train was delayed on account of snow.__________________________________________________ 2. You need to check in on hour before the flight.___________________________________________________3.精准的定位系统的发明和应用对人们的现代生活产生了巨大影响。

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高三小练习7Section A(A)Left HandednessWhat do Leonardo da Vinci, Marie Curie, and Albert Einstein have in common? They were all left-handed, along with other famous people including Barack Obama. In fact, an estimated 13 percent of the world’s population (25)______ be left-handed.Most people are right-handed. This fact also seems to have held true (26)______ history. In 1977, scientists studied works of art made at various times starting with cave drawings from 15,000 B.C. and ending with paintings from the 1950s. Most of the people (27)______ (show) in these works of art are right-handed.Many researchers claim (28)______ (find)relationships between left-handedness and various physical and mental characteristics. However, (29)______ of these connections are very weak, and others have not been proven.What makes a person become right-handed rather than left-handed? As yet, no one really knows for sure. (30)______ ______ ______ reasons may be behind it, people’s attitudes toward left-handedness have changed a lot over the years. There are even a number of shops (31)______ (specialize) in selling products for left-handed people, such as left-handed scissors, can openers, guitars, and even a left-handed camera.In 1976, Left-Handers International, a group of left-handed people in Topeka, Kansas, in the United States, decided to start (32)______ annual event in order to clear up misunderstandings about left-handedness.(B)Motivating Students(33)______ ______ a young child might be nervous about starting school, he or she is often excited on the first day of school. Perhaps that excitement lasts through the first few years of school. But over time, many children are much (34) ______ (excited) about going to school because school becomes a place of “all work and no play.”As the years go by, students (35)______(pressure) to do more work and to do it better, make better test scores, and have a higher class rank. It is therefore not surprising that by middle school many students lose interest in school and learning.Teachers face a big challenge in such a situation. When they enter a classroom (36)______ ______ most of the students do not want to be there and do not want to study, how can they teach? Some teachers may be tempted to focus their energy on the handful of students in the classroom who show an interest in (37)______(learn). Other teachers have to reward “good”students and punishing “bad”students in the hope (38)______ this may somehow motivate all students to try harder.Through his own teaching experience, Dr. Richard Lavoie became interested in the problem of motivating students. He (39)______(wonder) what motivates some students to want to learn. In studying this question, Dr. Lavoie discovered that other people have done a lot of research into this question already. However, those people do not work in schools. The people who seemed to know the most about (40)______ motivates kids were researchers who work for companies that were advertising products such as toys and music for children.On October 24,1929 —“Black Thursday”—a wave of panic selling of stocks swept the New York Stock Exchange. The Great Depression began. By 1932, thousands of banks and businesses had failed. Industrial production was cut in half, farm income had fallen by more than half, wages had decreased 60 percent, new investment was down 90 percent and one out of every four workers was unemployed.The Republican president, Herbert Hoover was unable to take measures to deal with the economic collapse. So in the 1932 election, he was defeated by Democrat Franklin D. Roosevelt, who promised “a New Deal for the American people”.Within the “Hundred Days”, Roosevelt rushed through Congress a number of laws to aid the recovery of the economy. The Civilian Conservation Corps put young men to work in reforestation and flood.The Federal Emergency Relief Administration aided state and local relief funds. The Agricultural Adjustment Administration paid farmers to reduce production, thus raising crop prices. The Tennessee Valley Authority built a network of dams in the Tennessee River area to generate electricity, control floods and manufacture fertilizer. The National Recovery Administration regulated fair competition among businesses and ensured bargaining rights and minimum wages for workers.The Social Security Act of 1935 established contributory old age and survivors’ pensions, as well as a joint federal state program of unemployment insurance.The Work Progress Administration was one of the most effective of the New Deal measures. Financed by taxes collected by the federal government, the WPA created millions of jobs by undertaking the construction of roads, bridges, airports and other public buildings. It kept workers in the job, thus preserving their skills and their self-respect.The New Deal programs did not end the Depression. But the economy improved as a result of this program of government intervention.66. According to the passage, “Black Thursday” is the day ________.A. of selling stocksB. of reducing industrial productionC. the Great Depression beganD. the New Deal was implemented67. The New Deal is a number of laws ________.A. to make young people plant trees and build damsB. to aid state and local relief fundsC. to deal with workersD. to deal with economic problems68. The WPA was an effective measure because ________.A. it provided workers jobs of building roads and airportsB. it preserved workers’ skill and self-respectC. it provided financial aids to workersD. it ensured workers’ minimum wages69. Roosevelt made his New Deal programs effective through ________.A. his presidential powerB. government taxationC. congress reputationD. government intervention70. If a student wants to know what the homework assignments are, __________.A. Prof. Klammer announces them in classB. the student reads the list on the next pageC. Prof. Klammer gives a list every weekD. the student goes to the professor’s office71. A student who would like to attend the course by Prof. Klammer has to stay in 363 MarshallHall ______.A. from 11:15 to 12:30 on Monday, Wednesday and FridayB. from 10:10 to 11:00 on Tuesday and ThursdayC. from 3:35 to 5:00 on Monday, Wednesday and FridayD. from 3:35 to 5:00 on Tuesday and Thursday72. According to the passage, which of the following is TRUE?A. The textbook is written by Dr. Jane Klammer.B. If you have to miss a class, be sure to say sorry to Prof. Klammer.C. The students can buy “Introduction to American History” at the College Bookstore.D. Prof. Klammer advises her students to take notes in her class.73. If a freshman thinks that he might major in history, what is the maximum length of his papercan be?A. Fifteen pages.B. Twenty-five pages.C. Ten pages.D. No maximum.Translation1、孩子们总是对圣诞节的礼物充满好奇。

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