广东省实验中学2012届高三阶段检测试题

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广东省实验中学2012届高三下学期一周一练(3)文综试题

广东省实验中学2012届高三下学期一周一练(3)文综试题

广东省实验中学2012届高三下学期一周一练(3)文综试题本试卷共12页,41小题,满分300分。

考试用时150分钟。

注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上。

用2B铅笔将试卷类型和考生号填涂在答题卡相应位置上。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应的题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再填涂其他答案。

答案不能答在试卷上。

3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案,不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4.考生必须保持答题卡的整洁。

一、选择题:本大题共35小题,每小题4分,满分140分。

在每小题列出的四个选项中只有一项符合题目要求。

1.下列地貌中,与河口三角洲成因相同的是A.黄土高原的沟壑 B.台湾山脉 C.华北平原 D.云南石林2.2011年6月渤海蓬莱19-3油田发生了重大溢油事故,要对污染海区进行大范围及时、准确监测,主要用到的技术是A. RSB. GPSC.GIS D.船舶海监右图中是美洲大陆西海岸部分城市、1、2月和7、8月降水(单位:mm)资料。

回答3-4题。

3.下列城市组别气候类型相同的是A.旧金山、圣地亚哥B.利马、阿卡普尔科C.温哥华、圣地亚哥D.阿卡普尔科、拉孔科迪亚4.关于图示板块边界的说法,错误..的是A.板块碰撞形成深深的海沟B.板块碰撞形成高大的褶皱山系C.板块张裂形成绵延高耸的海岭D.地处全球主要火山地震带上读我国部分地区(城市)雪线高程预测图,回答5~6题。

5.从图中可以得到的信息是A.纬度越低,雪线越低B.纬度越高,雪线越低C.纬度越低,雪线越高D.纬度越高,雪线总体呈降低趋势6.敦煌、喀什、格尔木、拉萨与同纬度城市相比,雪线异常偏高,原因是这些地区A.海拔高,气温低 B.海拔低,气温高C.气候湿润,降水偏多 D.气候干旱,降水偏少通常根据制造业综合竞争力位次的变化,可以把地区制造业综合竞争力动态类型划分为四种:高水平稳定型、较高水平波动型、较低水平波动型和低水平下降型。

广东省广州市2012届高三调研测试卷

广东省广州市2012届高三调研测试卷

A BC 试卷类型:B广州市2012届高三年级调研测试政治2011.12 本试卷共10页,共41题,满分300分。

考试用时150分钟。

注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上,并用2B铅笔在答题卡上的相应位置填涂考生号。

用2B铅笔将试卷类型(B)填涂在答题卡相应位置上。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。

3.非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4.考生必须保持答题卡的整洁。

考试结束后,将试卷和答题卡一并交回。

一、选择题:本题包括35小题,每小题4分,共140分。

每小题给出的四个选项中,只有一个选项符合题目要求。

多选、错选均不得分。

24.2011年11月,针对美国商务部对我国输美太阳能电池(板)和组件进行的反倾销和反补贴合并调查,中国商务部依法对美国可再生能源扶持政策及补贴措施启动贸易壁垒调查,国内光伏企业也联合起来“抱团”应对美国的“双反”调查。

这从一个侧面表明A.经济全球化是由少数发达国家主导的B.中国面临越来越恶劣的外部经济环境C.经济的自由开放程度与实施贸易保护主义成正相关D.中国政府和企业参与经济全球化的风险意识与利用规则能力在提高25.苹果公司在销售iphone、ipad等智能终端的同时,搭建了一个开放的网络应用商店App Store,通过引入第三方应用软件开发商,向消费者销售手机应用软件,不仅获取了卖手机的收益,而且获得了第三方分成收益。

苹果公司的成功秘诀是A.增加产品的价值量B.提高产品的技术含量C.通过经营创新延长产品产业链D.通过捆绑销售实施规模化经营26.右侧库兹涅茨曲线表明经济发展与收入差距变化关系。

高三练习试题3-广东实验中学2012届考前热身训练

高三练习试题3-广东实验中学2012届考前热身训练

2012高三下学期考前英语练习题(三)I 语言知识及应用(共两节,满分45分)第一节完形填空(共15小题;每小题2分,满分30分)I agree with the saying that some people “see old memories as a chance to deal with the past and unite past and present.” Many people are so ___1___ by things that happened in their past that they are not able to focus on the ___2___ . For example, in the book Ceremony, the main character, Tayo, cannot concentrate on the present because he can’t forget his troubled childhood and ___3___ continues to relive things that happened during that time.However, past memories can help people to ___4___ in the present. A ___5___ example of people learning from the past would be the Marshall Plan. After the ___6___ of World War II there were many war-torn countries around the world in need of ___7___ assistance to help rebuild their countries, and the United States would have to be the one to ___8___ that assistance. Many American politicians thought it was ___9___ for the US government to spend money abroad on countries that would not be able to repay it for a long time. However, George Marshall, a former US general, remembered how the exact same ___10___ of "why should we spend money on war-torn nations that really owe us reparations (赔款)?" had been used after World War I towards Germany. The ___11___ of assistance towards Germany after World War I had caused a gigantic economic depression in Germany that had made the Mark (German money) virtually ___12___ . The German people became so desperate that they started ___13___ an extreme German nationalist named Adolf Hitler, who eventually started World War II. Marshall knew that if the US did not ___14___ war-torn Germany and, especially, Japan, we could ___15___ have a World War III on our hands.1. A. shocked B. troubled C. punished D. annoyed2. A. memory B. situation C. present D. future3. A. constantly B. innocently C. ridiculously D. rarely4. A. forget B. recover C. enjoy D. compare5. A. personal B. scientific C. historical D. commercial6. A. conclusion B. decision C. invasion D. extension7. A. medical B. political C. economic D. lawful8. A. need B. provide C. find D. prevent9. A. reasonable B. necessary C. difficult D. foolish10. A. statement B. argument C. suggestion D. introduction11. A. intension B. request C. influence D. lack12. A. hopeless B. worthless C. worldwide D. valuable13. A. refusing B. employing C. supporting D. charging14. A. stop B. warn C. resist D. help15. A. similarly B. simply C. regularly D. unlikely第二节语法填空(共10小题;每小题1.5分,满分15分)It was Sunday morning in late October, about four months after Tess Durbeyfield’s arrival at the village. Some weeks ___16___ (pass) since the night carriage ride with d’Urbervi lle in the forest. Tess was carrying a heavy basket filled with clothes. Occasionally she stopped ___17___ (rest) by some gate or post; and then, went steadily on again. She followed the same road on ___18___ d’Urberville had driven so wildly that night in June. When she reached the top she gazed ___19___ the familiar green world beyond. It was always beautiful from here; it was ___20___ (terrible) beautiful to Tess today, for, ___21___ her eyes last fell upon it, she had learnt that in even the most beautiful surroundings there may be danger. Her view of life had been totally changed for her by the lesson.She had slipped away from d’Urberville’s farm ___22___ all the people were in bed, though her going would not be prevented now. Tess had thought, “I shan’t come back,” and was sure of her ___23___ (decide). Now she did not look back, ___24___ slowly walked along the narrow lane. ___25___ was still early and there was not a single person in sight.II 阅读(共两节,满分50分)第一节阅读理解(共20小题;每小题2分,满分40分)AJust as some people think that certain numbers are lucky or unlucky, others believe that we can use numbers to understand our personalities, or predict what will happen to us in the future.Numerology is a way of using numbers to describe a person’s character, and to make predictions about future life events. Numerologists use the numbers 1-9, 11 and 22 — also known as the “master” numbers —to help a person understand his or her personality, life goals, and destiny.Numerologists consider your Life Path number to be the most significant because this number describes your character. To find this number, add together all the numbers in your date of birth. For example, a person born on April 25, 1985 would add the month (4), to the numbers of the date (2+5), plus the numbers of the birth year (1+9+8+5). In this case the total is 34, so this person’s life path number is 7(3+4). Numerologists believe that people with this number are peaceful and affectionate but can also be very reserved.Your Expression number describes your talents and predicts how you should use these to fulfill your destiny in life. Numerologists assign a number between 1 and 9 to each of the letters in your name. These numbers are then added together in the same way as before to find your Expression number. Numerologists can also do calculations to predict when the most challenging periods of your life will be.Numerologists also believe that the day a person is born is important. Each day of the month has a character description. People born on the fourth are said to be responsible, honest, and stubborn. People born on the fifteenth have very strong attachments to family and home. Those who celebrate their birthday on the thirtieth are artistic, creative, and imaginative, and often make good writers.If we calculate the numerical value of our name and birth date, numerologists believe that we can learn more about our personalities. They also believe that we can predict our destinies, how our lives will progress, and what challenges we may face along the way. To the numerologist, numbers can be used in many more ways than we think.26. If a person was born on November 8, 1995, what is his Life Path number?A. 7B. 8C. 9D. 1127. To understand your abilities and how to use them in your life, you should calculate your ______.A. Life Path numberB. Expression numberC. birthdayD. name and birth date28. According to the passage, a person born on the fifteenth tends to be _______.A. stubbornB. home-lovingC. artisticD. imaginative29. According to the passage, numerologists believe that _________.A. Life Path number can be used to predict a person’s most challenging life periodsB. Expression number is the most meaningful for people to learn a person’s characterC. numbers can help people better understand themselvesD. numbers can be used to change a person’s future30. The function of the passage is __________.A. to raise doubts about the usefulness of numerologyB. to persuade readers about the benefits of the practices it describesC. to describe some of the numerological practices and their purposeD. to tease those who take such beliefs seriouslyBNormally when I pop in to see my parents, my mum bursts out of the house with a big smile. Not today. "Your brother," she says, "he's showered twice this afternoon. Does he know how much it costs to run this house?" Are we limiting water now? I didn't think the recession(萧条) had got that bad. My poor brother is a boomerang kid. Like 60 percent of guys immediately after university, he's back at home. Graduating £15,000 in debt and faced with unpaid internships(实习期) or low wages thanks to the flooding of the market with graduates, a lot of twentysomethings simply don't have the necessary income or parental support to live independently.Three years after getting their degree, most graduates are still not earning above the average salary. They have a near 50 percent tax burden, thanks to student loan repayments and council tax on top of income tax and national insurance. Unless you have parents who can afford to finance what is effectively a second home for them, returning to the parental nest is often the only affordable option.The boomerang effect is becoming even more pronounced thanks to the recession. One in four of those losing their job during the downturn is under 25. Only 13 percent of final-year students have jobs. Home is the only place many are going: 111,000 16-29 year olds moved back home in 2008, five times the average of previous years.Boomeranging is bad news. It poses serious problems for parents' finances. They've already supported their children through university, topping up loans with handouts, averaging £12,300 in total, to keep twentysomethings afloat. Now their retirement savings are being eaten away by continuously dependent children.It’s bad for the returning kids too. Ambitious young people will be left frustrated, seeing their university peers from more wealthy backgrounds excel only because parents' money was there to support them through the initial period of poverty wages. Those living in rural areas are further disadvantaged by lack of access to cities where most new jobs are located. Half of all young people now feel they will not achieve their goals. Research by the Prince's Trust reveals that one-quarter of all 16-25 year olds are regularly down or depressed. And depression does not help self-motivation, the very trait needed to seek out job opportunities.31. In paragraph 1, the mother’s criticizing her son for showering too often shows _______ .A. the price of water has increasedB. she thinks her son is selfishC. her son is an economic burdenD. she wants to have a shower herself32. What is the boomerang mentioned in the passage?A. A person earning low income.B. A person who has heavy tax burden.C. A youth who cannot get parental support.D. A youth returning to parents after graduation.33. According to the passage, which of the following does NOT contribute to the tax bill of most young graduates?A. National insurance.B. Income tax.C. Council income.D. Student loans.34. Who is comparatively most affected by the recession according to the passage?A. Those who haven’t completed their university studies.B. Those who are supported through by their parents.C. Those who can have access to the urban facilities.D. Those who were born into the well-off families.35. Which is the best title of the passage?A. Global RecessionB. Boomerang KidsC. Unemployment RateD. Falling IncomesCStudying volcanoes is a demanding profession. Hazel Rymer frequently has to struggle through rainforests, climb to the top of mountains, then climb 200 metres into the crater of active volcanoes. But the 38-year-old volcanologist does her best to make it sound less alarming than it is. “Driving to work is more risky,” she insists. “And the deepest I go into the crater of a volcano is about 300 metres,” she adds, trying to make it all sound as ordinary as taking the dog for a walk.Hazel has been st udying volcanoes for a long time, so it’s not surprising she is used to the danger. Her interest in volcanoes began at school. A teacher gave her a book about Pompeii. “I remember reading about the eruption of Vesuvius and the destruction of the city,” she explains. “The thought of all those people just frozen in time had quite an effect on me and I am still excited by their dangerous beauty today.”Nowadays, volcanoes are getting more and more unpredictable. There have been many changes in sea level caused by global warming and melting ice caps. These have resulted in some dormant volcanoes erupting, so studying them is more dangerous than ever before. Hazel says that although she doesn’t take any unnecessary risk she has had some frightening moments. Her worst experience was on the slopes of Mount Etna in Sicily, when she was slowly surrounded by lava. “I had a choice of walking ten hours to get around the lava flow or just walking across it,” she explains. She chose to pick a path across the cooler rocks in the lava stream. “I guess it was five metres. The flow was 1,000°C, so if you hesitated your boots would begin to melt. It was scary, but it really was a practical decision --- there wasn't time to do anything else.”And what about the future? “I haven’t been to the volcanoes in Indonesia yet. And I would love to spend some time working in the Antarctic,” she says. “I would also like to know why quiet lava flows erupt from some volcanoes and why other volcanoes go bang.” In other words, Hazel Rymer won’t be exchanging her volcanoes for the relative safety of driving to work just yet.36. Hazel’s claim that “driving to work is more risky” than ex ploring volcanoes shows that _.A. people have exaggerated the dangers of volcanoes in the pastB. Hazel does not really understand the dangerous situations she puts herself in.C. there are many bad drivers in the place where Hazel livesD. Hazel is being modest and understating the dangers she faces37. When did Hazel first become interested in volcanoes?A. When she was visiting Italy.B. When she was at school.C. When she was twenty.D. When she saw Vesuvius.38. The underlined word “these” (in paragraph 3) refers to __________.A. melting ice-capsB. volcanic eruptionsC. changes in sea levelD. higher temperatures39. When Hazel was on Mount Etna she had to ________.A. take a dangerous routeB. take an unnecessary riskC. leave her boots behindD. walk for ten hours around the mountain40. In the future, Hazel wants to ________.A. revisit volcanoes she knowsB. go on holiday to the AntarcticC. find a less dangerous jobD. discover new things about volcanoesDAcross the planet there are millions of people who engage in some type of meditation, the practice of concentrating and clearing the mind to bring the body into a state of peace, at least a semi-regular basis. For some, particularly among practitioners of Eastern religions such as Buddhism and Hinduism, this is part and parcel of their religious practice.For others, particularly in Western cultures, meditation tends to be a response to stress. With the world economy approaching meltdown and people worried about their job or their ability to keep their home, it’s a way for people to attain a state of peace of m ind and well-being.For those interested in taking up the practice, instruction in meditation for beginners can be found in literally thousands of sources.One of the most popular styles of mediation in the West, with classes offered in most major cities, is called Transcendental Meditation. TM, as it is known among its practitioners, first came to worldwide attention when the Beatles began practicing it in 1967. For direct, guided, personal instruction in meditation for the beginner, TM may be the hallmark.Part of the confusion about how to practice meditation effectively is due to the fact that there are literally hundreds of techniques championed by various groups and individuals. As a general principle, it might be said that all meditation techniques seek to have the practitioner attain a state of consciousness that is different to our ordinary state of awareness. They attempt to train people to clear their minds and achieve a sense of inner peace. It sounds simple enough, but of the huge number of people experiment with meditation, very few are able to maintain its practice over the long haul. In most cases, this is due to frustration over the inability to experience any dramatic, instantly recognizable effects.This is quite a sad state of affairs, that so few these days are willing or equipped to persist in something that doesn’t provide immediate life-changing results. It reflects a culture in which demands for discipline and sustained effort are considered unnecessary or even unfair. It is no surprise therefore that many people abandon their efforts at meditation before they have a chance to bear fruit.But for anyone who does decide to take up this worthwhile practice, please remember. You must clear your mind, relax and “take it as it comes”. Ma intain the practice with a sense of discipline and devotion, and eventually benefits of inner peace and calm will be yours.41. The underlined part “part and parcel of” in paragraph 1 is ne arest in meaning to _______.A. closely associated withB. very different toC. usually sent fromD. an important element of42. The goal of meditation is ________.A. to clear the mindB. to practice a religionC. to develop a techniqueD. to carry out an experiment43. What can we infer about meditation from the passage?A. It has two main types.B. It is practiced by many famous artists.C. Its benefits are not immediately obvious.D. Most people find it a very good way to relax.44. According to the writer, what has attracted many Western people to meditation practices in recent years?A. Their improved understanding of foreign culture.B. The need to fill in their growing free time.C. Increasing employment instability.D. Migration from countries in which meditation is traditional.45. Who is the probable audience for this article?A. Experienced meditation practitioners.B. People interested in starting to learn meditation.C. Buddhists and Hindus.D. People who are very religious.第二节信息匹配(共5小题;每小题2分,满分10分)阅读下列应用文及相关信息,并按照要求匹配信息。

广州市2012届高三年级调研测试答案(文科数学)

广州市2012届高三年级调研测试答案(文科数学)

广州市2012届高三年级调研测试数学(文科)试题参考答案及评分标准说明:1.参考答案与评分标准指出了每道题要考查的主要知识和能力,并给出了一种或几种解法供参考,如果考生的解法与参考答案不同,可根据试题主要考查的知识点和能力比照评分标准给以相应的分数.2.对解答题中的计算题,当考生的解答在某一步出现错误时,如果后继部分的解答未改变该题的内容和难度,可视影响的程度决定后继部分的得分,但所给分数不得超过该部分正确解答应得分数的一半;如果后继部分的解答有较严重的错误,就不再给分.3.解答右端所注分数,表示考生正确做到这一步应得的累加分数.4.只给整数分数,选择题和填空题不给中间分.一、选择题:本大题主要考查基本知识和基本运算.共10小题,每小题5分,满分50分.二、填空题:本大题主要考查基本知识和基本运算.本大题共5小题,考生作答4小题,每小题5分,满分20分.其中14~15题是选做题,考生只能选做一题.11.0.32 12.9 13. 14.1 15三、解答题: 本大题共6小题,共80分.解答应写出文字说明,证明过程或演算步骤. 16.(本小题满分12分)解:(1)因为3cos 5ADC ∠=,所以4sin 5ADC ∠==.…………………………………………………………2分 因为5sin 13BAD ∠=,所以12cos 13BAD ∠==.…………………………………………………………4分 因为ABD ADC BAD ∠=∠-∠,所以()sin sin ABD ADC BAD ∠=∠-∠sin cos cos sin ADC BAD ADC BAD =∠∠-∠∠ ………………………………6分 412353351351365=⨯-⨯=.…………………………………………………………8分 (2)在△ABD 中,由正弦定理,得sin sin BD ADBAD ABD =∠∠,………………………………10分所以533sin 132533sin 65AD BAD BD ABD⨯⨯∠===∠.……………………………………………………12分 17.(本小题满分12分)解:(1)从表中可以看出,“居民素质”得分和“社区服务”得分均不低于3分(即3x ≥且3y ≥)的社区数量为24个.…………………………………………………………………………………2分 设这个社区能进入第二轮评比为事件A ,则()P A =24125025=. 所以这个社区能进入第二轮评比的概率为1225.……………………………………………………4分 (2)从表中可以看出,“居民素质”得1分的社区共有()4a +个,……………………………6分 因为“居民素质”得1分的概率为110, 所以415010a +=.………………………………………………………………………………………8分 解得1a =.……………………………………………………………………………………………10分 因为社区总数为个,所以4750a b ++=.解得.……………………………………………………………………………………………12分 18.(本小题满分14分)解:(1)因为2221=-+n n a a ,所以数列{}2n a 是首项为1,公差为2的等差数列.…………………………………………………2分 所以122)1(12-=⨯-+=n n a n .…………………………………………………………………4分因为0>n a,所以n a =()*n ∈N .………………………………………………………6分(2)由(1)知,n a =22122n n na n -=.……………………………………………7分 所以231135232122222n n nn n S ---=+++++, ①…………………………………………8分 则234111352321222222n n n n n S +--=+++++, ②…………………………………………9分 ①-②得,2341112222212222222n n n n S +-=+++++-…………………………………………11分234111111212222222n n n +-⎛⎫=+++++- ⎪⎝⎭ 1111112142212212n n n -+⎛⎫- ⎪-⎝⎭=+⨯--…………………………………………………12分132322n n ++=-.……………………………………………………………………13分 所以2332n nn S +=-.………………………………………………………………………………14分 19.(本小题满分14分)(1)证明:因为ABCD 是正方形,所以BD AO ⊥,BD CO ⊥.…………………………1分 在折叠后的△ABD 和△BCD 中,仍有BD AO ⊥,BD CO ⊥.…………………………2分 因为AO CO O =,所以BD ⊥平面AOC .………3分 因为BD ⊂平面BCD ,所以平面AOC ⊥平面BCD .…………………………4分 (2)解:设三棱锥A BCD -的高为h , 由于三棱锥A BCD -的体积为3所以133BCD S h ∆=.………………………………………………………………………………5分 因为1122222BCD S BC CD ∆=⨯=⨯⨯=,所以2h =.………………………………………6分 以下分两种情形求AC 的长:①当AOC ∠为钝角时,如图,过点A 作CO 的垂线交CO 的延长线于点H , 由(1)知BD ⊥平面AOC ,所以BD AH ⊥.又CO AH ⊥,且CO BD O =,所以AH ⊥平面BCD . 所以AH 为三棱锥A BCD -的高,即2AH =.………………………………………………7分 在Rt △AOH中,因为AO =所以OH =2==8分 在Rt △ACH中,因为CO =则22CH CO OH =+=+=.……………9分所以AC ===10分②当AOC ∠为锐角时,如图,过点A 作CO 的垂线交CO 于点H , 由(1)知BD ⊥平面AOC ,所以BD AH ⊥.又CO AH ⊥,且CO BD O =,所以AH ⊥平面BCD .所以AH 为三棱锥A BCD -的高,即AH =11分在Rt △AOH中,因为AO =,所以OH =2==12分 在Rt △ACH中,因为CO =则CH CO OH =-==.……………………………………………………………13分所以AC ===综上可知,AC.…………………………………………………………………14分20.(本小题满分14分)解:(1)由题设知,2A⎛⎫⎪⎭,)1F ,…………………………………………1分由112OF AF +=0,得⎪⎪⎭⎫ ⎝⎛---=-22222222a a a a .……………………………………3分 解得62=a .所以椭圆M 的方程为126:22=+y x M .…………………………………………………………4分 (2)方法1:设圆()12:22=-+y x N 的圆心为N ,则()()-⋅-=⋅ ………………………………………………………………6分 ()()NF NP NF NP =--⋅-……………………………………………………………7分2221NP NF NP =-=-.………………………………………………………………8分从而求PF PE ⋅的最大值转化为求2NP 的最大值.………………………………………………9分 因为P 是椭圆M 上的任意一点,设()00,y x P ,…………………………………………………10分所以1262020=+y x ,即202036y x -=.…………………………………………………………11分因为点()2,0N ,所以()()121222020202++-=-+=y y x .……………………………12分因为0y ⎡∈⎣,所以当10-=y 时,2取得最大值12.……………………………13分所以PF PE ⋅的最大值为11.………………………………………………………………………14分 方法2:设点112200(,),(,),(,)E x y F x y P x y , 因为,E F 的中点坐标为(0,2),所以2121,4.x x y y =-⎧⎨=-⎩ ………………………………………………6分所以10201020()()()()PE PF x x x x y y y y ⋅=--+--……………………………………………7分 10101010()()()(4)x x x x y y y y =---+---222201011044x x y y y y =-+-+-22220001114(4)x y y x y y =+--+-.…………………………………………………9分因为点E 在圆N 上,所以2211(2)1x y +-=,即2211143x y y +-=-.………………………10分因为点P 在椭圆M 上,所以2200162x y +=,即220063x y =-.…………………………………11分所以PE PF ⋅200249y y =--+202(1)11y =-++.……………………………………………12分因为0[y ∈,所以当01y =-时,()min11PE PF⋅=.………………………………14分方法3:①若直线EF 的斜率存在,设EF 的方程为2y kx =+,………………………………6分由⎩⎨⎧=-++=1)2(222y x kx y ,解得112+±=k x .………………………………………………………7分 因为P 是椭圆M 上的任一点,设点()00,y x P ,所以1262020=+y x ,即202036y x -=.…………………………………………………………8分所以002PE x y ⎛⎫=-+-⎪⎭,00,2PF x y ⎛⎫=-+- ⎪⎝⎭ ……………………………………………………9分 所以11)1(21)2(1)2(11202020222022++-=--+=+--++-=⋅y y x k k y k x . ……………………………………………………10分因为0y ⎡∈⎣,所以当10-=y 时,PF PE ⋅取得最大值11.…………………………11分②若直线EF 的斜率不存在,此时EF 的方程为0x =,由220(2)1x x y =⎧⎨+-=⎩,解得1y =或3y =. 不妨设,()0,3E ,()0,1F .………………………………………………………………………12分 因为P 是椭圆M 上的任一点,设点()00,y x P ,所以1262020=+y x ,即202036y x -=.所以()00,3PE x y =--,()00,1PF x y =--. 所以2220000432(1)11PE PF x y y y ⋅=+-+=-++.因为0y ⎡∈⎣,所以当10-=y 时,PF PE ⋅取得最大值11.…………………………13分综上可知,PF PE ⋅的最大值为11.………………………………………………………………14分21.(本小题满分14分)解:(1)当3a =时,()3213232f x x x x =-+-,得()2'32f x x x =-+-.…………………1分 因为()()()2'3212f x x x x x =-+-=---, 所以当12x <<时,()0f x '>,函数()f x 单调递增; 当1x <或2x >时,()0f x '<,函数()f x 单调递减.所以函数()f x 的单调递增区间为()1,2,单调递减区间为(),1-∞和()2,+∞.………………3分 (2)方法1:由()321232a f x x x x =-+-,得()2'2f x x ax =-+-, 因为对于任意[)1,x ∈+∞都有'()2(1)f x a <-成立, 即对于任意[)1,x ∈+∞都有222(1)x ax a -+-<-成立,即对于任意[)1,x ∈+∞都有220x ax a -+>成立,………………………………………………4分令()22h x x ax a =-+,要使对任意[)1,x ∈+∞都有()0h x >成立,必须满足0∆<或()0,1,210.ah ∆≥⎧⎪⎪≤⎨⎪⎪>⎩…………………………………………………………………………5分即280a a -<或280,1,210.a a a a ⎧-≥⎪⎪≤⎨⎪+>⎪⎩………………………………………………………………………6分所以实数a 的取值范围为()1,8-.…………………………………………………………………7分 方法2:由()321232a f x x x x =-+-,得()2'2f x x ax =-+-, 因为对于任意[)1,x ∈+∞都有'()2(1)f x a <-成立,所以问题转化为,对于任意[)1,x ∈+∞都有[]max '()2(1)f x a <-.……………………………4分因为()22224a a f x x ⎛⎫'=--+- ⎪⎝⎭,其图象开口向下,对称轴为2a x =.①当12a<时,即2a <时,()'f x 在[)1,+∞上单调递减, 所以()()max ''13f x f a ==-,由()321a a -<-,得1a >-,此时12a -<<.………………………………………………5分②当12a ≥时,即2a ≥时,()'f x 在1,2a ⎡⎤⎢⎥⎣⎦上单调递增,在,2a ⎛⎫+∞ ⎪⎝⎭上单调递减, 所以()2max''224a a f x f ⎛⎫==- ⎪⎝⎭,由()22214a a -<-,得08a <<,此时28a ≤<.……………………………………………6分 综上①②可得,实数a 的取值范围为()1,8-.……………………………………………………7分 (3)设点321,232a P t t t t ⎛⎫-+- ⎪⎝⎭是函数()y f x =图象上的切点, 则过点P 的切线的斜率为()2'2k f t t at ==-+-,………………………………………………8分 所以过点P 的切线方程为()()32212232a y t t t t at x t +-+=-+--.…………………………9分 因为点10,3⎛⎫- ⎪⎝⎭在切线上, 所以()()32211220332a t t t t at t -+-+=-+--,即322110323t at -+=.……………………………………………………………………………10分 若过点10,3⎛⎫- ⎪⎝⎭可作函数()y f x =图象的三条不同切线,则方程322110323t at -+=有三个不同的实数解.………………………………………………11分 令()32211323g t t at =-+,则函数()y g t =与t 轴有三个不同的交点.令()220g t t at '=-=,解得0t =或2at =.……………………………………………………12分因为()103g =,3112243a g a ⎛⎫=-+ ⎪⎝⎭, 所以必须31102243a g a ⎛⎫=-+<⎪⎝⎭,即2a >.……………………………………………………13分 所以实数a 的取值范围为()2,+∞.………………………………………………………………14分。

2012届广东省实验中学高三阶段检测(理数)

2012届广东省实验中学高三阶段检测(理数)
综上 ,所以自来水达到有效净化一共可持续8天…………………7分
(2)由 = 知………8分
在区间 上单调递增,即 ,……9分
在区间 上单调递减,即 ,综上 ,………12分
为使 恒成立,只要 且 即可,即 ……13分
所以为了使在7天之内的自来水达到最佳净化,投放的药剂质量 应该为 。……14分
19解析:(1) ……………………1分
即 ,……………8分
又由正弦定理知:
即 ,所以 ……10分
当 时, ,
故 在 上的值域为 ……………12分
16解:(1)公差 ,……………2分
所以 ,……………………………………4分
.……………………………………6分
(2) …………………………7分
…………8分
……9分
………11分
,故 …………12分
A.25 B.26 C.50 D.52
5.在△ABC中,内角A,B,C的对边分别是a,b,c,若 , ,则A=
A. 300B.600C.1200D.1500
6.已知实数x,y满足不等式组 ,目标函数z=y-ax(a∈R).若取最大值时
的唯一最优解是(1,3),则实数a的取值范围是
A.[1,+∞) B.(1,+∞) C.[2,+∞) D.(2,+∞)
16.(本小题满分12分)
已知等差数列{an}中,a3=11,a6=20,若从数列{an}中依次取出第3项,第9项,第27项,...,第3n项,按原来的顺序构成一个新的数列{bn}.
(1)求数列{bn}的通项公式。
(2)设 , ,证明: .
17.(本小题满分14分)
已知定义域为R的函数f(x)=x3-6x2+2

2012届广东省实验中学高三3月联考试题文综政治

2012届广东省实验中学高三3月联考试题文综政治

广东省实验中学2012届高三3月联考试题文综政治24.据统计,80后是年货网购的主力军。

究其原因,网购除了价格便宜外,方便也是他们选择网购的主要原因之一。

由此可见A.商品的基本属性是价值和交换价值B.物美价廉是商家经营的直接目的C.居民的最终消费受主客观因素影响D.消费的方式的转变带动生产方式的转变25.一方面是“网购的种种诱惑”,另一方面是“专家的提醒”。

作为消费者,理智的行为是A.放弃网购,实体店购买更可靠 B.遵守规则,建立健全社会信用制度.C.审慎交易,学习网络交易知识D.自我保护,树立良好的信誉和形象26.运用所学经济知识,根据右图得出的合理结论有:①从整个交换过程看,等价交换是不存在的,M、N点处于涨落状态,但不能无限涨落②如果生活必需品在M点,呈现卖方市场,其互补产品的需求量减少③如果高档耐用品在N点,呈现买方市场,其替代产品的需求量减少④价格与供求存在相互制约的关系,价格围绕价值上卜.波动是价值规律的具体内容A.①③B.②③C.②④D.①④27.在我国公民参与政治生活的过程中,下列关于“基础”一词使用正确的是①公民参与管理国家和社会的基础和标志是行使选举权和被选举权②保障公民的知情权是公民参与民主决策的前提和基础③自己选举当家人,是实施村民自治的基础。

④公民的全部政治生活是以依法行使政治权利、履行政治性义务为基础和准则A.①B.①②C.①②③D.①②③④28.按照党中央和国务院的部署,佛山市对口支援新疆喀什地区伽师县。

预计到2015年,使伽师县人均GDP达到全国平均水平,到2020年,促进伽师县人民富裕、民族团结,实现全面建设小康社会的奋斗目标。

这体现了①民族区域自治是我国的根本政治制度②加强援助是巩固新型民族关系的根本保证③我国国家机构坚持民主集中制的原则④各民族共同繁荣是社会主义本质盼体现A.①②④B.③④C.②③D.②③④29.2011年关于南海的主权争端持续升温,我国在不放弃主权的前提下提出,“搁置争议,共同开发”的解决原则,但是.我国与菲律宾、越南等各方依然矛盾重重。

广东省实验中学2012届高三下学期综合测试(一)数学(理)试题

广东省实验中学2012届高三下学期综合测试(一)数学(理)试题

π 4
2.
a 2
6 (0 < α < π ), 求 cos 2α 5
17、(本小题满分 12 分) 如图, P-AD-C 是直二面角, 四边形 ABCD 是∠BAD=120 的菱 形,AB=2,PA ⊥ AD,E 是 CD 的中点,设 PC 与平面 ABCD 所成 的角为 45 . (1)求证:平面 PAE⊥平面 PCD; (2)试问在线段 AB(不包括端点)上是否存在一点 F,使得二面 角 A-PE-D 的大小为 45 ?若存在,请求出 AF 的长,若不 存在,请说明理由.
则称函数 f(x)为 F 函数.现给出下列函数①f(x)=x ,②f(x)=
x
2
x2 x2 − x +1
③f(x)=x(1-2 ),④f(x)是定义在实数集 R 上的奇函数,且对一切 x1x2 均有
f ( x 1 ) − f ( x 2 ) ≤ 2 x1 − x 2 .其中是 F 函数的序号为(
A .① ② ③ B.② ④ C. ② ③ D.③ ④
设平面 PFD 的法向量为 n1 = ( x, y, z ), 则有 n1 ⋅ PD = 0, n1 ⋅ PF = 0, 所以
⎧ λ λ +1 ⎪− x + 3 y − 2 z = 0 令 x=1,则 z= ,y= ,所以平面 PFD 的法向量为 ⎨ 2 ⎪ 3 ⎩λx − 2 z = 0
n1 = (1,
2、已知函数①y=sinx+cosx,②y= 2 2 sinxcosx,则下列结论正确的是(
π ,0)成中心对称 4 π B.两个函数的图象均关于直线 x=- 成轴对称 4 π π C.两个函 数在区间(- , )上都是单调递增函数 4 4
A.两个函数的图象均关于点(D.两个函数的最小正周期相同 3、设 f(x)= ⎨ A.

广东省实验中学2012届高三阶段检测(一)(文数)

广东省实验中学2012届高三阶段检测(一)(文数)

省实2012届高三阶段检测(一)文科数学一、选择题:本大题共10小题,每小题5分,满分50分,在每小题给出的四个选项中,只有一项是符合题目要求的。

1.复数z =i1+i在复平面上对应的点位于( )A .第一象限B .第二象限C .第三象限D .第四象限2.已知全集U ={1,2,3,4,5,6},集合M ={2,3,5},N ={4,5},则∁U (M ∪N )等于( )A .{1,3,5}B .{2,4,6}C .{1,5}D .{1,6} 3.已知平面向量a =(1,2),b =(-2,m ),且a ∥b ,则2a +3b 等于( )A .(-2,-4)B .(-3,-6)C .(-4,-8)D .(-5,-10)4.已知f (x )=⎩⎪⎨⎪⎧2x ,x >0f (x +1),x ≤0,则4433f f ⎛⎫⎛⎫+- ⎪ ⎪⎝⎭⎝⎭等于( ) A .-2 B .4 C .2 D .-45.已知函数f (x )=|2x -1|,a <b <c ,且f (a )>f (c )>f (b ),则下列结论中,一定成立的是________.①a <0,b <0,c <0; ②a <0,b ≥0,c >0; ③2-a <2c; ④2a +2c <2.6.函数f (x )=⎩⎪⎨⎪⎧ln x +2x -6 (x >0)-x (x +1) (x ≤0)的零点的个数是( )A .0B .1C .2D .37.曲线y =e x 在点(2,e 2)处的切线与坐标轴所围三角形的面积为( )A . 94e 2B .2e 2C .e 2D. e 228.定义在R 上的偶函数()f x 满足:对任意的1212,[0,)()x x x x ∈+∞≠,有2121()()0f x f x x x -<-.则( )(A)(3)(2)(1)f f f <-< (B) (1)(2)(3)f f f <-< (C) (2)(1)(3)f f f -<< (D) (3)(1)(2)f f f <<- 9.给出下列关于互不相同的直线l 、m 、n 和平面α、β、γ的三个命题: ①若l 与m 为异面直线,l ⊂α,m ⊂β,则α∥β; ②若α∥β,l ⊂α,m ⊂β,则l ∥m ;③若α∩β=l ,β∩γ=m ,γ∩α=n ,l ∥γ,则m ∥n . 其中真命题的个数为( )A .3B .2C .1D .010.设1A ,2A ,3A ,4A 是平面直角坐标系中两两不同的四点,若1312A A A A λ= (λ∈R),1412A A A A μ=(μ∈R),且112λμ+=,则称3A ,4A 调和分割1A ,2A ,已知点C(c ,o),D(d ,O)(c ,d∈R)调和分割点A(0,0),B(1,0),则下面说法正确的是(A)C 可能是线段AB 的中点 (B)D 可能是线段AB 的中点(C)C ,D 可能同时在线段AB 上 (D) C ,D 不可能同时在线段AB 的延长线上二、填空题:本大题共5小题,考生作答4小题,每小题5分,满分20分。

广东省实验中学2012届高三第一次阶段性测试题(语文)

广东省实验中学2012届高三第一次阶段性测试题(语文)

口语交际——演讲比赛 教学目标:组织演讲比赛,提高口头表达能力。

课时安排:1课时 教学过程: 课前准备: 1、征集演讲题。

完成规定内容演讲稿的写作 2、提供一人一机的网络教学环境,多媒体教室。

教师提供一些相关网站及百度、google等搜索引擎。

明确搜索任务: (1)历史上著名的演讲故事; (2)欣赏优秀的演讲稿及演讲视频; (3)搜集与演讲比赛相关的资料 课上活动: 1、明确任务:读了一组精彩的演讲,同学们一定被深深打动了,甚至跃跃欲试了。

我们也将举行一次演讲比赛,比赛分规定内容演讲和三分钟即兴演讲两部分,请每小组分别设计三道口语交际题。

我们比赛内容将在其中产生。

2、小组交流,推荐比赛者。

3、组织演讲比赛。

4、组织交流评价。

5、活动总结。

课后学习:搜集精彩的演讲稿、演讲故事等,以小组为单位出一期专题手抄报。

附:演讲比赛规程 1、演讲比赛规则。

①内容:演讲比赛分规定内容演讲(5~7分钟)和即兴演讲(3分钟)两部分,两者分数相加为选手的最后得分。

②评委:由每小组推选的一位评委,以及语文老师。

③评分方式:10分制,去掉最高分、最低分后的均分。

2、演讲比赛评判 内容:观点正确,结构合理,词句得体。

(30%) 语音:普通话流利标准,声音清晰,口齿清楚,语调准确。

(30%) 仪态:表情(含眼神)丰富,姿态(含手势,身姿)得体。

(20%) 临场:有一定的自控能力和控场能力。

(20%) ,资料共分享!我们负责传递知识!。

广东省实验中学2012届高三第一次阶段性测试题(化学).pdf

广东省实验中学2012届高三第一次阶段性测试题(化学).pdf

2012届高三阶段检测(一)试题 化学 一.单选题 7.下列关于Cl、N、S等非金属元素化合物的说法正确的是 A.漂白粉的成分是次氯酸钙 B.实验室可用浓硫酸干燥氨气 C.实验室可用NaOH处理NO2和HCl废气 D. 8.对下列事实的解释错误的是 A.在蔗糖中加入浓硫酸后出现发黑现象,说明浓硫酸具有脱水性 B.浓硝酸在光照下颜色变黄,说明浓硝酸不稳定 .反应 D.常温下,浓硝酸可以用铝容器贮存,说明铝与浓硝酸不反应 亚氯酸钠(NaClO2)可用作漂白剂,在酸性溶液中因生成亚氯酸而发生分解,分解的化 ,ClO2是广谱型消毒剂。

下列说法正确的是 A. HClO2是有机酸 B.上述反应中,ClO2是还原产物 C.上述反应中,1 mol HClO2分解转移2 mol电子 D.上述反应中,氧化剂与还原剂物质的量之比为1:4 下列离子组一定能大量共存的是 .含大量OH-的溶液中: .甲基橙呈黄色的溶液中; .石蕊呈蓝色的溶液中: .含大量Al3+的溶液中: 离子S2-能在酸性溶液中发生如下反应:,则中M的化合价为 ( ) A.+4 B.+5 C.+6 D.+7 下列关于浓硝酸和浓硫酸的叙述中正确的是 A、露置在空气中,容器内酸液的质量都减轻 B、常温下都能用铝容器贮存 、常 D、露置在空气中,容器内酸液的浓度都降低 23.设NA表示阿伏加德罗常数,下列说法中正确的是 A. 1 ol Fe溶解于一定量的HN03溶液中,电子转移数介2NA和3NA B.L mol FeC3完全水解转化为氢氧化铁胶体后能生成A个Fe(OH)3胶粒 C.0.01 ol Mg在空气中完全燃烧生成MgO和M,转移电子数目为0.02NA D.10 mL 5mol/L (N4)2S04溶液中有4+数目为0.1NA个向盛有溶液的试管中加入少许CCl4后滴加氯水,CCl4层变成紫色。

如果继续向试管中滴加氯水,振荡,CCl4层会逐渐变浅,最后变成无色。

广东省实验中学2012届高三数学5月第三次模拟新人教A版

广东省实验中学2012届高三数学5月第三次模拟新人教A版

2012届广东实验中学高三三模文科数学本试卷分选择题和非选择题两部分,共4页,21小题,满分150分。

考试用时120分钟。

【注意事项】1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名、考号填写在答题卡上。

2.选择题的答案一律做在答题卡上,每小题选出答案后,用2B 铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其它答案。

3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在另发的答题卷各题目指定区域内的相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液.不按以上要求作答的答案无效。

4.考生必须保持答题卡的整洁,考试结束后,将答题卷和答题卡一并收回。

参考公式:1.锥体的体积公式13V Sh =,其中S 是锥体的底面积,h 是锥体的高.一、选择题:本大题共10小题,每小题5分,满分50分,在每小题给出的四个选项中,只有一项是符合题目要求的。

1.已知集合{}2,3,4,5M =,{}3,4,5N =,则MN =A 、{}2,3,4,5B 、{}2,3,4C 、{}3,4,5D 、{}3,4 2.复数1z i =+,则=+22z zA .1i --B .1i -+C .1i -D .1i +3.用二分法求方程lg 3x x =-的近似解,可以取的一个区间是( ) A 、()0,1 B 、()1,2 C 、()2,3 D 、()3,44.设集合]2,1[),1,0[==B A ,函数 2,()42,x x Af x x x B ⎧∈=⎨-∈⎩,若0x A ∈且()0f f x A ∈⎡⎤⎣⎦, 则0x 的取值范围是A .(1,23log 2) B .(1,2log 3) C .(1,32) D .[0,43] 5.阅读如图所示的程序框图,输出的S 值为 A .0 B .21+ C .221+ D .12-6.设b a ,为两条直线,βα,为两个平面,下列四个命题中,真命题为( )A .若b a ,与α所成角相等,则b a //B .若βαβα//,//,//b a ,则b a //C .若b a b a //,,βα⊂⊂,则βα//D .若βαβα⊥⊥⊥,,b a ,则b a ⊥ 7. 已知,,A B C 三点不共线,对平面ABC 外一点O ,给出下列表达式:13OM xOA yOB OC =++其中,x y 是实数,若点,,M A B C 与四点共面,则x y + 为1.4A 1.3B 2.3C 3.4D 8.已知A ,B 是椭圆长轴的两个顶点,N M ,是椭圆上关于x 轴对称的两点,直线BN AM ,的斜率分别为12,k k ,且021≠k k ,若1,则椭圆的离心率为( ) A9.设不等式组x 1x-2y+30y x ≥⎧⎪≥⎨⎪≥⎩所表示的平面区域是1Ω,平面区域2Ω与1Ω关于直线3490x y --=对称,对于1Ω中的任意一点A 与2Ω中的任意一点B , ||AB 的最小值为( ) A .285 B .125C .4D .210.已知(1)(1),()(2)f x f x f x f x +=-=-+,方程()0f x =在[]0,1内有且只有一个根在区间[]0,2011内根的个数为 (B )2010 (C )1006 (D )1005二、填空题:本大题共5小题,每小题5分,满分20分.其中14、15题是选做题,考生只能选做一题,两题全答的,只计算前一题得分。

2012广东省实验中学高三3月联考英语试题(2)

2012广东省实验中学高三3月联考英语试题(2)

2012广东省实验中学高三3月联考英语试题(2)DIn the kitchen of my mother's houses there has always been a wooden stand with a small notepad and a hole for a pencil.I'm looking for paper on which to note down the name of a book I am recommending to my mother. Over forty years since my earliest memories of the kitchen pad and pencil, five houses later,the current paper and pencil look the same as they always did. Surely it can't be the same pencil The pad is more modern, but the wooden stand is definitely the original one."I'm just amazed you still have the same stand for holding the pad and pencil after all these years." I say to her, walking back into the living-room with a sheet of paper and the pencil. "You still use a pencil. Can't you afford a pen?"My mother replies a little sharply. "It works perfectly well, I've always kept the stand in the kitchen. I never knew when I might want to note down an idea, and I was always in the kitchen in these days.,Immediately I can picture her, hair wild, blue housecoat covered in flour, a wooden spoon in one hand, the pencil in the other, her mouth moving silently. My mother smiles and says, "One day I was cooking and watching baby Pauline, and I had a brilliant thought, but the stand was empty. One of the children must have taken the paper. So I just picked up the breadboard and wrote it all down on the back, It turned out to be a real breakthrough for solving the mathematical problem I Was working on."This story, which happened before I was born, reminds me how extraordinary my mother was,and is also a giftedmathematician. I feel embarrassed that I complain about not having enough child-free time to work. Later, when my mother is in the bathroom, I go into her kitchen and turn over the breadboards. Sure enough, on the back of the smallest one, are some penciled marks I recognize as mathematics. Those symbols have traveled unaffected through fifty years, rooted in the soil of acheap wooden breadboard, invisible exhibits at every meal.41. Why has the author's mother always kept the notepad and pencil in the kitchen?A. To leave messages.B. To list her everyday tasks.C. To note down maths problems.D. To write down a flash of inspiration.42. What is the author's original opinion about the wooden stand?A. It has great value for the family.B. It needs to be replaced by a better one.C. It brings her back to her lonely childhood.D. It should be passed on to the next generation.43. The author feels embarrassed for____________A. blaming her mother wronglyB. giving her mother a lot of troubleC. not making good use of time as her mother didD. not making any breakthrough in her field44. What can be inferred from the last paragraph?A. The mother is successful in her career.B. The family members like traveling.C. The author had little time to play when young.D. The marks on the breadboard have disappeared.45. In author's mind, her mother is__________A. strange in behaviorB. keen on her researchC. fond of collecting old thingsD. careless about her appearance第二节信息匹配(共5小题;每小题2分,满分l0分)阅读下列应用文及相关信息,并按照要求匹配信息。

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广东省实验中学2012届高三阶段检测试题英语本试卷共10页,满分135分。

考试时间120分钟。

注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和学号填写在答题卡和答在密封线内相应的位置上,用2B铅笔将自己的学号填涂在答题卡上。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干诤后,再选涂其他答案:不能答在试卷上。

3.非选择题必须用黑色字迹的钢笔或签字笔在答卷纸上作答,答案必须写在答卷纸各题目指定区域内的相应位置上,超出指定区域的答案无效:如需改动,先划掉原来的答案,然后再写上新的答案:不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4.考生必须保持答题卡的整洁和平整。

5.信息匹配选项,E项请在答题卡上填涂AB;F项请在答题卡上填涂CD。

I 语言知识及应用(共两节,满分45分)第一节完形填空(共15小题:每小题2分,满分30分)阅读下面短文,掌握其大意,然后从1~15各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

Ben Franklin was right, at least on the healthy part."Early to bed and early to rise"appears to have helped a cross-section of early-bird Australian 1 keep slimmer and more physically active than their night-owl peers, even though both groups got the _2_amount of sleep. A study in the Oct. 1 issue of the journal Sleep___3___the bedtimes and wake times of 2,200 Australian participants, ages 9 to 16, and compared their weights and___4__of free time over four days. Children who went to bed___5___and got up late were 1.5 times more likely to__6__obese than those who went to bed early and got up early.Furthermore,late-nighters were almost twice as likely to be physically__7___and 2.9 times more likely to sit in front of the TV and computer or play video games for more hours than guidelines.__8__. "The children who went to bed late and woke up late, and the children who went to bed early and woke up early got virtually the same amount of sleep__9___," said co-author Carol Maher,PhD,a postdoctoral fellow with the University of South Australia. "Scientists have__10___in recent years that children who get less sleep__11__to do worse on a variety of health outcomes,including the risk of being overweight and obese. Our study suggests that the__12__of sleep is even more important.""It is widely accepted that the sleep patterns of adolescents are___13__different from children and adults, and that it is normal for adolescents to stay up very late and sleep in late in the morning,"Maher said."Our findings show that this sleeping pattern is associated with___14__activity patterns and health outcomes, and that the adolescents who don't__15___this sleep pattern do better."1. A. people B. adults C. youths D.children2. A. different B.great C. little D. same3. A. published B.stated C. wrote D. recorded4. A. possession B. uses C. control D. opinions5. A. late B. early C. more D.less6. A. have B. become C. avoid D. start7. A.healthy B. fat C. inactive D. ill8. A. recommend B. promote C. claim D. encourage9. A.in time B. in total C. all over D. all around10. A. predicted B. studied C. surveyed D. realized11. A. get B. learn C. used D. tend12. A. amount B. timing C. place D. quality13. A. fundamentally B. equally C. potentially D. mainly14. A. beneficial B. unfavorable C. desirable D. changeable15. A. do B. make C. follow D. fall第二节语法填空(共10小题;每小题15分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卷标号为16~25的相应位置上。

Lake Titicaca, a famous lake in South America, is located on the border between Bolivia and Peru. But the lives of the ancient people who once lived around the lake and__16__culture was thought to be highly advanced, have long remained a secret. Recently __17__, scientists taking part in an exploration project at the lake have found__18__they believe to be a 1000-year-old temple___19__the water.Divers from the study group have discovered__20__building scientists think is the remains of a temple built by the people who once lived beside the lake. The project leaders hope to begin raising important materials from the site later this week__21__bad weather forces a change in their plans."The scientists have not yet had the opportunity to study the materials carefully,"said project director,John Aubi. "But some___22____(put) forward the idea that the remains date from this period because of their _23_ (similar) to those found elsewhere."The research team has so far this year made more than 200 dives into water 30 metres deep. During these dives,___24__have been recording the ancient remains on film. There will be a meeting,_____25___(start) later this year to review the film II 阅读(共两节,满分50分)第一节阅读理解(共20小题;每小题2分,满分40分)阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

AWith large and small keyboards everywhere, neither children nor adults need to write much of anything by hand.That's a big problem. Study after study suggests that handwriting is important for brain development--helping kids get fine motor skills and learn to express and create ideas. Yet the time devoted to teaching penmanship in most schools has shrunk to just one hour a week. Is it time to give up handwriting? Have a look at the link between the brain and penmanship,and you may get the answer.A test among students in grades 2, 4, and 6 found that they not only wrote fasterby hand than by keyboard, but also created more ideas when composing essays with handwriting. And other research shows that the finger movements required to write by hand activate brain areas involved with thought, language,and short-term memory.A recent Indiana University study had one group of children practice writing letters by hand while a second group just looked at those letters. Then,both groups of kids entered a functional MRI (核磁共振)that scanned their brains as the researchers showed them the same letters. Researchers found that the brain activity in the first group was far more advaunced and "adult-like".Handwriting also affects other people's way they think of adults and children. Several studies have shown that the same average essay will score much higher if written with good penmanship and much lower if written out in poor handwriting. These Studies have also found that people judge the quality of a person's ideas based on his or her hand writing. And the consequences are real: On standardized tests with handwritten sections, like the SAT, all essay that is considered hard to recognize gets a big zero.Studies show that this isn't only an English-language phenomenon. Chinese and Japanese youths are suffering from "character amnesia". They can't remember how to write characters, thanks to computers and text messaging. Some experts fear that Chinese writing and reading are so closely linked in the brain that China's reading ability as a nation could suffer.26. According to the passage, it can be learned that_________.A. many researches have been done on handwritingB. essays can't be composed without handwritingC. all children write faster by keyboard than by handD. most schools are trying to teach more handwriting27. What does the Indiana University study imply?A. Children should practice writing lettersB. Handwriting can increase brain activityC. It's good for children to enter a functional MRI.D. Letters should often be shown to children28. What does the 4th paragraph mainly talk about?A. Handwriting affects both adults and children.B. Handwriting helps a person write better essays.C.SAT should be done with good handwriting.D. Good handwriting makes a person seem smarter.29. Which of the following statements is TRUE?A. Essays written with keyboards will get lower scores.B. The quality of your ideas depends on your handwriting.C. Chinese and Japanese youths don't know how to write.D. Less hand writing may attect China's reading ability as a nation.30. The passage tries to tell us that_________.A. keyboards are more popular than handwritingB. we shouldn't judge people by their hand writingC. handwriting is of great importanceD. it's time to give up using keyboardsBOne evening in February 2007, a student named Paula Ceely brought her car to a stop on a remote in Wales. She got out to open a metal gate that blocked her path. That's when she heard the whistle sounded by the driver of a train.Her Renault Clio parked across a railway line. Seconds later, she watched the train drag her car almost a kilometre down the railway tracks.Ceely's near miss made the news because she blamed it on her GPS device. She had never driven the route before. It was dark and raining heavily. Ceely was relying on her GPS. But it made no mention of the crossing. "I put my complete trust in the device and it led me right into the path of a speeding train,"she told the BBC. Who is to-blame here? Rick Stevenson, who tells Ceely's story in his book When Machines Fail US,points his finger at the limitations of technology. We put our faith in digital devices, he says, but our digital helpers are too often not up to the job. They are filled with small problems. And it's not just GPS devices:Stevenson takes us on a tour of digital disasters involving everything from mobile phones to wireless keyThe problem with his argument in the book is that it's not clear why he only focuses on digital technology, while there may be a number of other possible causes.A map-maker might have left the crossing off a paper map; Maybe we should blame Ceely for not paying attention; Perhaps the railway authorities are at fault for poor signaling system; Or maybe someone has studied the relative dangers and worked out that there really is something specific wrong with the CPS equipment. But Stevenson doesn't say.It's a problem that runs through the book. In a section on cars, Stevenson gives an account of the advanced techniques that criminals use to defeat computer-based locking systems for cars. He offers two independent sets of figures on car theft; both show a small rise in some parts of the country. He says that once again not all new locks have proved reliable. Perhaps, but maybe it's also due to the shortage of policemen on the streets.Or changing social circumstances. Or some combination of these factors.The game between humans and their smart devices is amusing and complex. It is shaped by economics and psychology and the cultures we live in. Somewhere in the mix of those forces there may be a way for a wiser use of technology.If there is such a way, it should involve more than just an awareness of the shortcomings of our machines.After all, we have lived with them for thousands of years. They have probably been fooling us for just as long.31. What did Panla Ceely think was the cause of her accident?A. She was not familiar with the road.B. It was dark and raining heavily then.C. The railway workers failed to give the signal.D. Her GPS device didn't tell her about the crossing.32. The phrase "near miss" (paragraph 2 ) can best be replaced by__.A. close hitB. heavy lossC. narrow escapeD. big mistake33. Which of the following would Rick Stevenson most probably agree with?A. Modern technology is what we can't live without.B. Digital technology often falls short of out expectation.C. Digital devices are more reliable than they used to be.D. GPS error is not the only cause for Celery's accident.34. In the writer's opinion, Stevenson's argument is________.A. one-sidedB. reasonableC. puzzlingD. well-based35. What is the real concern of the writer of this article?A. The major causes of traffic accidents and car thefts.B. The relationship between humans and technologyC. The shortcomings of digital devices we use.D. The human unawareness of technical problems.CIt is a curious paradox that we think of the physical sciences as "hard", the social sciences as"soft", and the biological sciences as somewhere in between. This is interpreted to mean that our knowledge of physical systems is more certain than our knowledge of biological systems, and these in turn are more certain than our knowledge of social systems. In terms of our capacity to sample the relevant universes,however, and the probability that our images of these universes are at least approximately correct,one suspects that a reverse order is more reasonable. We are able to sample earth's social systems with some degree of confidence that we have a reasonable sample of the total universe being investigated. Our knowledge of social systems, therefore, while it is in many ways extremely inaccurate, is not likely to be seriously overturned by new discoveries.Even the folk knowledge insocial systems on which ordinary life is based in earning, spending, organizing, marrying,taking part in political activities, fighting and so on, is not very dissimilar from the more sophisticated images of the social system in the social sciences, even though it is built upon the very imperfect samples of personal experience.In contrast, our image of the astronomical universe, or even of earth's geological history, can easily be subject to revolutionary changes as new data comes in and new theories are worked out. If we define the"security" of our image of various parts of the total system as the probability of their suffering significant changes, then we would reverse the order of hardness and see the social sciences as the most secure, the physical sciences as the least secure, and again the biological sciences as somewhere in between. Our image of the astronomical universe is the least secure of all simply because we observe such a fantastically small sample of it and its record-keeping is trivial(微小的)as compared with the rich records of the social systems, or even the limited records of biological systems. Records of the astronomical universe, despite the fact that we see distant things as they were long ago, are limited in the extreme.Even in regard to such a close neighbour as the moon, which we have actually visited, theories about its origin and-history are extremely different, contradictory, and hard to choose among. Our knowledge of physical evolution isincomplete and highly insecure.36. The word "paradox"(Para. 1, Line 1) means"___________"A. implicationB. contradictionC.interpretationD.confusion37. According to the author, we should reverse our classification of the physical sciences as "hard" and the social sciences as "soft" because__________.A. a reverse ordering will help promote the development of the physical sciencesB. our knowledge of physical systems is more reliable than that of social systemsC. out understanding of the social systems is approximately correctD. we are better able to investigate social phenomena than physical phenomena38. The author believes that our knowledge of social systems is more secure than that of physical systems because__________.A. it is not based on personal experienceB. new discoveries are less likely to occur in social sciencesC. it is based on a fairly representative quantity of dataD. the records of social systems are more reliable39. The chances of the physical sciences being subject to great changes are the biggest because___________.A. contradictory theories keep emerging all the timeB. new information is constantly coming inC. the direction of their development is difficult to predictD. our knowledge of the physical world is inaccurate40. We know less about the astronomical universe than we do about any social system because________A. theories of its origin and history are variedB. our knowledge of it is highly insecureC. only a very small sample of it has been observedD. few scientists are involved in the study of astronomyDThere are few more sobering(使人清醒的) online activities than entering data into college-tuition calculators and feeling shocked as the Web spits back a six-figure sum. But economists say families about to go into debt to fund four years of partying, as well as studying, can comfortt themselves with the knowledge that college is an investment that, unlike many bank stocks, should produce huge dividends (红利).A recent study by two Harvard economists notes that the "labor-market premium to skill"--or the amount college graduates earned that's greate than what high-school graduate earned--decreased for much of the 20th century, but has come back with a vengeance (报复性地) since the 1980s. In 2005, The typical full-time year-round U.S. worker with a four-year college degree earned $50,900, 62% more than the $31,500 earned by a worker with only a high-school diploma.There's no question that going to college is a smart economic choice. But a look at the strange variations in tuition reveals that the choice about which college to attend doesn't come down merely to dollars and cents. Does going to Columbia University (tuition, room and board $49,260 in 2007-08)yield a 40% greater returnthan attending the University of Colorado at Boulder as an out-of-state student($35,542)? Probably not, Does being an out-of-state student at the University of Colorado at Boulder yield twice the amount of income as being an in-state student ($17,380) there? Not likely.Now, in this consumerist age, most buyers aren't evaluating college as an investment, but rather as a consumer product--like a car or clothes or a house. And with such purchases, price is only one of many crucial factors to consider.As with automobiles, consumers in today's college marketplace have vast choices, and people search for the one that gives them the most comfort and satisfaction in line with their budgets. This accounts for the willingness of people to pay more for different types of experiences (such as attending a private liberal-arts college or going to an out-of-state public school that has a great marine-biology program). And just as two auto purchasers might spend an equal amount of money on very different cars, college students(or, more accurately, their parents) often show a willingness to pay essentially the same price for vastly different products. So which is it? Is college an investment product like a stock or a consumer product like a car? In keeping with the automotive world's hottest consumer trend, maybe it's best to characterize it as a hybrid (混合动力汽车); an expensive consumer product that, over time,will pay rich dividends.41. What's the opinion of economists about going to college?A.Huge amounts of money is being wasted on campus socializing.B.It doesn't pay to run into debt to receive a college education.C.College education is rewarding in spite of the startling costs.D.Going to college doesn't necessarily bring the expected returns.42.The two Harvard economists note in their study that,for much of the 20th century,_______.A. enrollment kept decreasing in virtually all American colleges and universitiesB. the labor market preferred high-school to college graduatesC. competition for university admissions was far more fierce than todayD. the gap between the earnings of college and high-school graduates narrowed43. Students who attend an in-state college or university can_______.A. save more on tuitionB. receive a better educationC. take more liberal-arts coursesD. avoid traveling long distances44. In this consumerist age, most parents_________.A. regard college education as a wise investmentB. place a premium on the prestige of the CollegeC.think it crucial to send their children to collegeD.consider college education a consumer product45. What is the chief consideration when students choose a college today?A. Their employment prospects after graduation.B. A satisfying experience within their budgets.C. Its facilities and learning environment.D. Its ranking among similar institutions.第二节信息匹配(共5小题;每小题2分,满分10分)阅读下列应用文及相关信息,并按照要求匹配信息。

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