人教版必修四第二章测试题(含答案)
高中英语(人教版必修四)习题 Unit 2 Period One含答案
Father of Hybrid Rice—Yuan LongpingYuan Longping，a Chinese scientist，was born in 1930.ProfessorYuan graduated from Southwest Agricultural College in 1953 and sincethen he has devoted himself to agricultural education and research.Professor Yuan was a pioneer in hybrid rice research and maderemarkable achievements in this area，first developing hybrid rice in the world.The achievements of Yuan Longping greatly solved the food shortage，and provided a solution to the worldwide starvation.It is regarded as the fifth invention after China’s Four Major Inventions，and is acclaimed as the Second Green Revolution.Yuan Longping was the first person to develop hybrid rice.The new technology was tested in many areas of South China in 1974 and 1975，and then extended to the other areas.China became the first country that is capable of producing hybrid rice.Yuan Longping is the first scientist who successfully realized large-scale farming of hybrid rice.This earned him the title “Father of HybridRice”.His pioneering work in hybrid rice breeding and production techniques has revolutionized rice cultivation in China，establishing China’s world leading position in hybrid rice research.At present，the hybrid rice developed by Yuan is planted on the farmlands all over China，which played an important role in increasing China’s grain production.These increased harvests mean that 22% of the world population are fed from just 7% of the world’s total farmland.根据上文完成下列各题1．What is his hybrid rice called?His hybrid rice is regarded as the fifth invention after China’s Four Major Inventions.2．What role does his hybrid rice play in China?His hybrid rice made it possible that 22% of the world population are fed from just 7% of the world’s total farmland.3．Do you want to be a scientist on farming in the future?Give your reasons.The answers may vary.Period One Warming Up & ReadingⅠ.单词1．n.数据；统计statistic十年；十年期decade产量；输出output庄稼；农作物crop饥饿；欲望hunger战斗；战役battle自由freedom谷物；粮食grain国籍nationality工作；职业occupation2．v.斗争；拼搏；努力struggle使变大；伸展expand循环；流传circulate装备；配备equip输出；出口export3．adj.晒黑的sunburnt特级的super引起烦恼的；令人不安的disturbing ad v.因此；所以thereforeⅡ.短语1．幸亏；由于thanks to2．摆脱；去除rid...of3．宁愿；宁可would rather4．对……感到满意be satisfied with1．Yuan Longping grows what is called super hybrid rice.袁隆平种植的是被称为“超级杂交水稻”的稻种。
人教版高中英语选择性必修第四册综合测试题含答案
选择性必修第四册综合测试题(满分：120分建议用时：120分钟)第一部分阅读(共两节，满分50分)第一节(共15小题；每小题2.5分，满分37.5分)AUrban gardens are valuable assets to communities.They provide green spaces to grow sustainable food，build community cohesion(凝聚力)，make new friends，connect with the earth，and much more.So，let’s check out our list of 4 inspiring urban gardens in the US.Gotham GreensWhere: New York & ChicagoWhat: Gotham Greens first started in Brooklyn and now has four locations in New York City and Chicago.Their flagship farm in Brooklyn produces over 100,000 pounds of greens per year.But it doesn’t just produce healthy local vegetables.It is using high-tech greenhouses with solar panels to make sure the food grown is healthy and sustainable.Baltimore Urban Gardening with StudentsWhere: Baltimore，MarylandWhat：The Baltimore Urban Gardening with Students(BUGS) program encourages students to get their hands dirty and plant vegetables through their after-school and summer programs.Many of these kids don’t have access to green spaces，and have never had the opportunity to grow food.ReVision Urban FarmWhere: Boston，MassachusettsWhat: ReVision Urban Farm in Boston works in partnership with the ReVision Family Home — a shelter for 22 homeless parents and their kids.The farm provides these families with information on healthy eating，and access to the farm’s fresh vegetables.The organisation also provides job training to help families escape the cycle of poverty.SwaleWhere: New YorkWhat: Swale，a floating food forest located on a large boat，is an innovative project meant to inspire citizens to rethink the relationship between our cities and our food.This urban garden servesas both a living art exhibit and an educational farm.Food forests are sustainable gardens that include vegetables，fruit，nut trees，bushes，herbs，and vines — each one complementing the other in a symbiotic(共生的) relationship.()1．What does the BUGS program mainly do?A．Provide job training for students.B．Use high-tech greenhouses to grow healthy food.C．Create a sustainable garden on a large boat.D．Offer students the opportunity to grow vegetables.()2．Which urban garden helps people get out of poverty?A．Gotham Greens.B．Swale.C．ReVision Urban Farm.D．Baltimore Urban Gardening with Students.()3．Where can citizens go to see a food forest?A．Chicago.B．Baltimore.C．Boston.D．New York.【语篇解读】本文是一篇应用文。
人教版英语必修四单元测试 Unit 2 Working the land(word含答案)
Unit 2 Working the land 单元测试姓名：班级：座号：一、单词拼写（词汇运用）（共15题；共15分）1.Don't close that window. Let a little air c________.2.Believe it or not, I met a s________ football star this morning on the street.3.He was making rude ________(评论) about the other people in the room.4.The o________ of grain has doubled in China in the last ten years.5.What is the daily o________ of automobiles in this factory?6.They were driven by poverty and ________(饥饿) to steal.7.As is known to all, when heated, things will ________(膨胀)．8.The whole food chain is affected by the overuse of ________(化学品) in agriculture.9.Its products are not only popular in China but also e________ to other countries.10.I could really use a small calculator like that one for my ________(统计数字) homework.11.Not only will they be paid for their ________(粮食) in cash but in online payment.12.Children require proper ________(营养) to be strong.13.According to official ________(统计数字) the disease killed a large amount of people.14.There is h________ in many parts of the world, including rich countries.15.He apologizes for his c________ and says he didn't mean to offend these people.二、完形填空（共20分）The eyes are one of the most expressive instruments of body language.Keith，seventeen，from Montclair New Jersey，learned the hard way about one 1 the eyes can make .“I had a 2 who graded heavily on classroom discussion,”Keith says. “He seemed to have a strong ability to know just when I didn't have the3 .I couldn't figure out how he could be so4 .Then it dawned on（为……所明白）me.5 I didn't know the answer，I would avoid looking at himWhen I 6 know what so say，I always 7 straight back at him.From that moment on，I 8 myself to look him in the eye,9 I knew the work or not.That trick has saved me a lot of trouble.”Many people，including some policemen，believe eye contact is a good 10 of honesty.If someone can't look at you directly in the eye，then he or she is not playing11 ,they insist.After many experiments, 12 ,a number of experts have found out that good liars can make false eye contact.Eye contact，though not a（n）13 sign of honesty，is a clear way to show interest in another person.When a person looks at you and 14 to do so，you know his 15is placed on you.When he turns his head away，his mind is probably 16 .17 there are exceptions.A 18 person may have trouble making and keeping eye contact，no matter how interested he is in the other person. And certain 19 ,such as the British and Germans，are much 20 oriented（适应）to eyeball to eyeball contact than，say，the French and Arabs.1. A. letter B. notice C. message D. news2. A. student B. headmaster C. friend D. teacher3. A. question B. problem C. excuse D. answer4. A. slow B. sharp C. dull D. clever5. A. Whatever B. Whenever C. However D. Wherever6. A. didn't B. did C. don't D. do7. A. watched B. glanced C. saw D. stared8. A. helped B. hoped C. taught D. persuaded9. A. when B. whether C. if D. as10. A. lesson B. way C. chance D. test11. A. honestly B. quickly C. correctly D. really12. A. therefore B. however C. actually D. especially13. A. real B. exact C. wonderful D. sure14. A. stops B. continues C. changes D. hopes15. A. attention B. spirit C. strength D. energy16. A. anywhere B. nowhere C. elsewhere D. everywhere17. A. And B. Or C. But D. So18. A. brave B. shy C. stupid D. proud19. A. nationalities B. cities C. countries D. languages20. A. more B. less C. too D. enough三、阅读理解（共2题；共21分）（一）How Women Were Freed From Their HomesAs late as 1800, a woman's only place was in her home. Women in business were unheard of. No respectable woman would dream of entering what was strictly a “man's world”. Even if she would, what could she do? Men were sure that no woman could do a job well outside her home. This was a widely-accepted idea. When the famous Bronte sisters began writing books in 1846, they had to resort to using men's names as aliases.Teaching was the first profession opened to women, soon after 1800. But even that was not easy for women to take because most high schools and colleges were open only to men. Oberlin College in Ohio was the first college in America to take in women.Nursing was regarded as a respectable profession for women only after Florence Nightingale won high credit for her nursing career and became famous. Miss Nightingale opened the first training school for nursing in 1860 in England.The invention of typewriters in 1867 helped to bring women out of their homes to join the business world. Because women are careful and have nimble fingers, businessmen found that they were well suited to this kind of work.By 1890, tens of thousands of women were working in schools, hospitals, shops, offices, and factories both in England and the States. Some even managed to become doctors or lawyers. The idea of women working in business and other circles was accepted.（1）Oberlin College was the first college in America ________.A.where teaching was a profession only open to womenB.where girls could get advanced educationC.to train women to be teachers and nursesD.to accept women only as professors and students（2）It can be inferred from the text that besides nursing, Florence Nightingale was also ________.A.a doctorB.a lawyerC.a teacherD.a businessman（3）Quite a lot of women entered the business world ________.A.soon after 1800B.when Nightingale became famousC.at the beginning of this centuryD.after the typewriter came into being（二）A few weeks ago, I sat with a California farmer named Dave Ribeiro. I asked him what he wished to know about farmers. He smiled and said, "That we walk among you. We look like you and talk like you. We have advanced degrees and hobbies, just like you."Take Dave for example: He's a young man with a music degree. And if you walked past him on the street, you'd never think, "There goes a farmer."Is someone like Dave who you picture when you think of a farmer? Probably not. I think that most people would picture a man in his overalls(工作服). I can tell you, that does not represent Dave or any of the many other farmers I have gotten to know.Not only do we have to throw out our previous impression of farmers, but farming as a whole doesn't look much like it used to either. We recently sent a team out to see what modern farming looks like, and they found farmers to be completely different from our usual ideas about them and also came across them in some unexpected places.In a parking lot in a neighborhood of Brooklyn, they met a new crop of young farmers who were trying to bring fresh greens closer to eaters in the city by growing them in high-tech indoor vertical(垂直的) farms. In a Florida field under the fight path of an airport, they discovered farmers with university degrees growing plants that might someday fuel our cars. And in a modern farm in California, they observed how farmers were using technology to take the best possible care of their animals.These farmers all spend their days in very different ways—none of them looks like the previous farmer we have in our mind—but they're all working on new ways to feed our planet. Not only do we need to change our idea of what farming looks like, but we also need to change our view of where solutions can come from. Feeding all of us is going to take all of us working together.（1）How does Dave describe today's farmers? （）A.They often walk on the street.B.They are leading a very busy life.C.They are similar to ordinary people.D.They have little time to make friends.（2）How does the author think most people see farmers? （）A.They usually wear overalls.B.They have interesting hobbies.C.They are skilled at growing crops.D.They know modern farming practices.（3）What was the purpose of the team? （）A.To deepen connections among farmers.B.To study different technologies in farming.C.To find the new developments of modern farming.D.To encourage farmers to use new farming method.（4）What do the farmers mentioned in Paragraph 5 have in common? （）A.They all work in the city.B.They all use high technology.C.They all do hard physical work.D.They all work with universities.四、任务型阅读（共5分）As spring comes to half the world, many people can enjoy the new growth that comes with warmer weather. This is a great time to get outside and get dirty! ________ This outdoor activity gives us beautiful plants, pleasant smelling flowers and fresh fruits and vegetables. Moreover, it also gives us many health benefits.Gardening reduces loneliness. It connects people. When you are gardening, you are outdoors.________ Gardeners usually enjoy showing people what they are growing. And most enjoy sharing advice and stories about their gardens.Gardening is a great activity to do with children. It gets them outdoors and off computers, televisions and other electronics. ________ Gardening can teach a child about where food comes from and healthy eating. It can also help them to understand the limits of natural resources.________ This means you are getting vitamin D which helps your bodies take in calcium(钙). That is necessary to keep bones strong. When you garden you must move around. All the different movements needed for gardening—bending, stretching and lifting—work small muscles in the body.Gardening may help your brain stay young. In one study, researchers found that gardening could lower the risk of future dementia(痴呆) by 36 percent. ________ A flower and herb garden can help feed bees and butterflies. Growing herbs and flowers connects you to nature are pleases all of your senses.A. Vitamin D also helps us fight diseases.B. Children can learn about nature and wildlife.C. Gardening is popular in many parts of the world.D. So it is a perfect time to communicate with your neighbors.E. Some people may not have the resources to have their own garden.F. When you are in your garden, you might feel the sunshine on your skin.G. Gardening can also give you the feeling that you have done something good.五、语法填空（共14分）1.To ________ satisfaction, both of us finally finished homework before the deadline.2.She ________ (comment) that it was a better play than usual, and I agreed with her opinion.3.It was obvious that Climate Change Conference in Copenhagen became the focus ________media attention.4.You can't satisfy everybody. If the majority ________（satisfy）your decision ,that's OK.5.—Do you regret ________(bring) up your opinion that every child should take part in service learning?—No. On the contrary, I think it is very necessary.6.My brother ________（prefer）singing ________ dancing while I would rather dance than sing.六、书面表达（共25分）请根据下面的内容，写一篇幽默故事。
高中政治(新人教版)必修第四册同步习题：文化交流与文化交融(同步习题)【含答案及解析】
第二框文化交流与文化交融基础过关练题组一文化交流与文化发展1.(2020江苏南通启东中学高二上期中)中式英语词汇“add oil(加油)”被《牛津英语词典》收录。
此前,《牛津英语词典》已收录“guanxi(关系)”“tuina(推拿)”等中国特有的一些词汇。
越来越多的“中式英语”被主流英语世界认可和接受,表明()①中西文化交流互鉴促进了世界文化的发展②文化既是民族的又是世界的③中华文化的包容性推动了其“走出去”④中国人生活方式已融入西方社会A.①③B.①②C.②④D.③④2.(2020河北唐山一中高二上调研)泰山不让土壤,故能成其大;河海不择细流,故能就其深。
习近平指出:要善于融通马克思主义的资源、中华优秀传统文化的资源、国外哲学社会科学的资源,坚持不忘本来、吸收外来、面向未来。
这要求我们()①对传统文化推陈出新、革故鼎新②在对外文化交流中输出意识形态和发展模式③坚持各民族平等,促进世界文化的繁荣统一④在兼收并蓄中博采众长,善于吸收人类优秀文化成果A.①②B.①④C.②③D.③④3.(2020吉林德惠实验中学、前郭五中等九校高二期中)近年来,我国在世界许多国家成功举办了“中国文化周”“中国文化月”“中国文化年”等活动,受到普遍欢迎。
假如要求你参观完反映我国文化走向世界的成就展后,写一篇读后感,要确定一组符合我国对外文化交流的政策或主张的关键词,你认为下列各组中最准确的一组是()A.相互借鉴加强交流提升文化软实力B.和平相处文化渗透维护我国文化安全C.尊重差异理解个性维护和固定传统文化D.相互尊重和睦相处吸收各国文化4.(2020安徽桐城中学高二上月考)2019年6月,《文化产业促进法(草案征求意见稿)》面向全社会公开征求意见。
草案征求意见稿“境外推广”条款提出,国家支持适合对外传播的优秀文化产品和服务的创作生产、翻译、国际合作制作,综合利用外交、旅游、商务、教育等对外交流渠道,开展优秀文化产品和服务境外推广、营销活动。
人教版高二必修四数学第二章平面向量试题
以下是为⼤家整理的关于《⼈教版⾼⼆必修四数学第⼆章平⾯向量试题》的⽂章，供⼤家学习参考！第四部分练习与试卷2.1 平⾯向量的概念及其线性运算（练习）【练习⽬标】1、理解平⾯向量和向量相等的含义，理解向量的⼏何表⽰；2、掌握向量加、减法的运算，并理解其⼏何意义；3、掌握向量数乘的运算，并理解其⼏何意义，以及两个向量共线的含义；4、了解向量线性运算的性质及其⼏何意义。
【⾃我测试】1、下列命题中（1）与⽅向相同（2）与⽅向相反（3）与有相等的模（4）若与垂直其中真命题的个数是 ( )A、0B、1C、2D、32、已知AD、BE是 ABC的边BC、AC上的中线，且，，则为 ( )A、 B、 C、 D、3、O是平⾯上⼀定点，A、B、C是平⾯上不共线的三个点，动点P满⾜，则P的轨迹⼀定经过 ABC的( )A、外⼼B、内⼼C、垂⼼D、重⼼4、若⾮零向量、满⾜| + |=| — |，则与所成⾓的⼤⼩为_________________。
5、已知点M是 ABC的重⼼，若，求的值。
6、 ABC的外接圆的圆⼼为O，两条边上的⾼的交点为H，，求实数的值。
2.2 平⾯向量的坐标运算【练习⽬标】1、知识与技能：了解平⾯向量的基本定理及其意义、掌握平⾯向量的正交分解及其坐标表⽰；理解⽤坐标表⽰的平⾯向量共线的条件。
2、能⼒⽬标：会⽤坐标表⽰平⾯向量的加、减与数乘运算；3、情感⽬标：通过对平⾯向量的基本定理来理解坐标，实现从图形到坐标的转换过程，锻炼学⽣的转化能⼒。
【⾃我测试】1、下列命题正确的是（）A、 B、C、 D、2、已知正⽅形ABCD的边长为1，，则 = （）A、0B、3C、D、3、已知，则共线的条件是（）A、 B、 C、 D、或4、如图，在中D、E、F分别是AB、BC、CA的中点，则（）A、 B、 C、 D、5、若，则实数p、q的值为（）A、 B、 C、 D、6、已知A、B、C是坐标平⾯上的三点，其坐标分别为A（1，2），B（4，1），C（0，-1），则是（）A、等腰三⾓形B、等腰直⾓三⾓形C、直⾓三⾓形D、以上都不对2.3 平⾯向量的数量积及其运算【学习⽬标】1．知识与技能：（1）理解向量数量积的定义与性质；（2）理解⼀个向量在另⼀个向量上的投影的定义；（3）掌握向量数量积的运算律；（4）理解两个向量的夹⾓定义；【⾃我测试】1、已知，，和的夹⾓为，则为（）A． B． C． D．2、已知向量，，若，则（）A． B． C． D．3、在△ABC中，a,b,c分别为三个内⾓A,B,C所对的边，设向量，若 ,则⾓A的⼤⼩为（）A. B. C. D.4、设是任意的⾮零平⾯向量，且它们相互不共线，下列命题：①②③不与垂直④其中正确的是（）A.①②B.②③C.③④D.②④5、若向量与的夹⾓为，，则向量的模为（）A. B. C. D.6、为锐⾓三⾓形的充要条件是（）A． B．C． D．7、设是两个⾮零向量，是在的⽅向上的投影，⽽是在的⽅向上的投影，若与的夹⾓为钝⾓，则（）A． B． C． D．8、在中，若且，则的形状是（）A．等边三⾓形 B．直⾓三⾓形 C．等腰⾮等边三⾓形 D．三边均不相等的三⾓形9、若，则与的夹⾓为； = ．10、已知， ,如果与的夹⾓为锐⾓,则的取值范围是11、 = 时，与垂直12、设向量其中，则的值是．13、已知向量与的夹⾓为，，则 = ．14、已知，⑴求与的夹⾓；⑵求；⑶若，，求的⾯积．15、已知向量且．⑴求及；⑵若的最⼩值是，求的值．2.4平⾯向量的应⽤【学习⽬标】1.经历⽤向量⽅法解决某些简单的平⾯⼏何问题、⼒学问题与其他⼀些实际问题的过程，体会向量是⼀种处理⼏何问题、物理问题等的⼯具，发展运算能⼒2.运⽤向量的有关知识对物理中的问题进⾏相关分析和计算，并在这个过程中培养学⽣探究问题和解决问题的能⼒1．在△ABC中，AB=a，AC=b，当a•b ＜0时，△ABC为（）Ａ．直⾓三⾓形Ｂ．锐⾓三⾓形Ｃ．钝⾓三⾓形Ｄ．等腰三⾓形2．若向量a、b、c满⾜a +b+c=0，|a|=3，|b|=1，|c|=4，则a b+b c+c a等于（）Ａ． 11 Ｂ． 12 Ｃ． 13 Ｄ． 143．已知点，则∠BAC 的余弦值为．4．已知，且a 与b的夹⾓为钝⾓，则x的取值范围是．5．的顶点为，重⼼．求：（1）边上的中线长；（2）边上的⾼的长．6．已知O为△ABC所在平⾯内的⼀点，且满⾜，试判断△ABC的形状．7．已知，设C是直线OP上的⼀点，其中O为坐标原点．（1）求使取得最⼩值时向量的坐标；（2）当点C满⾜（1）时，求cos∠ACB．8、已知O为△ABC所在平⾯内的⼀点，且满⾜，试判断△ABC的形状．9、已知，设C是直线OP上的⼀点，其中O为坐标原点．（1）求使取得最⼩值时向量的坐标；（2）当点C满⾜（1）时，求cos∠ACB．平⾯向量测试卷命题⼈：蓝承⼀、选择题：本⼤题共8⼩题，每⼩题4分，共32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、设向量，，则下列结论中正确的是（）A、 B、C、与垂直D、∥2、在平⾏四边形ABCD中，AC为⼀条对⾓线，若， ,则（）A．（3，5） B．（2，4） C、（－2，－4） D．（－3，－5）3、义平⾯向量之间的⼀种运算“ ”如下，对任意的，，令，下⾯说法错误的是（）A.若与共线，则B.C.对任意的，有D.4、已知向量a,b满⾜a•b＝0，|a|=1，|b|=2，则|2a－b|＝（）A、8B、4C、2D、05、在中，，．若点满⾜，则（）A． B． C． D．6、设点M是线段BC的中点，点A在直线BC外，则（）A、8B、4C、 2D、17、中，点在上，平⽅．若，，，，则（）A、 B、 C、 D 、8、已知和点满⾜ .若存在实数使得成⽴，则 =（）A． 2 B. 3 C. 4 D. 5⼆、填空题：本⼤题共4⼩题，每⼩题4分，共16分．把答案填在答题卡的相应位置．9、如图，在中，，，则 = 。
人教版高中英语必修四：期末测试(含答案解析)
期末测试本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
共150分，考试时间120分钟。
第Ⅰ卷第一部分听力(共两节，满分30分)第一节(共5小题；每小题1.5分，满分7.5分)听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1．Where does this conversation take place?A. At a hospital.B. At a department store.C. At a restaurant.2．How much is the food and drink?A. $2.65.B. $2.75.C. $2.95.3．What's the man doing?A. Watching TV.B. Turning down the TV.C. Answering the phone.4．According to the man, what does he like to do if possible?A. To visit museums.B. To make a good plan.C. To visit the Modern Museum.5．What news did the woman get from the man?A. Sam will leave New York very soon.B. Sam's sister will leave for Los Angeles very soon.C. Sam's sister will leave for New Y ork very soon.第二节(共15小题；每小题1.5分，满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
高中政治(新人教版)必修第四册同步习题：追求智慧的学问(同步习题)【含答案及解析】
第一单元探索世界与把握规律第一课时代精神的精华第一框追求智慧的学问基础过关练题组一哲学的起源1.(2020广东深圳长江中学高二期中,改编)截至2019年8月12日5时50分,山东省受第9号台风“利奇马”影响,灾情涉及济南、青岛、淄博、枣庄、东营等14个市79个县(市、区)的522个乡镇(街道)。
对此,人们思考了一系列带有哲学性质的问题:人们能否提前发出准确预警?人们如何把灾害导致的损失降至最低?这表明()A.真正的哲学可以使我们正确地看待自然B.哲学智慧产生于人类的实践活动C.在实践中产生的思想都是哲学思想D.开展实践活动是为了适应哲学发展的需要2.(2020重庆一中高二月考,改编)朱熹小时候就问父亲“天上有何物”;陆九渊三四岁时就问父亲“天地有没有尽头”,并为此废寝忘食;波普尔八岁时就在思考“空间是无限的还是有限的”。
这些人后来成为大思想家与他们从小善于思考不无关系。
这说明(易错)A.哲学源于人们对自然万物的惊讶、困惑B.哲学思想源于伟大哲学家的智慧C.哲学起源于人们在生活实践中对宇宙、人生的追问和思考D.学习哲学是为了质疑现存的东西题组二哲学是系统化理论化的世界观3.(2020河南豫南九校联盟高二联考)世界观和方法论是同一问题的两个方面。
人们关于世界是什么、怎么样的根本观点是世界观,用这种观点去认识世界和改造世界,就成了方法论。
下列对世界观和方法论理解正确的是(易错)A.世界观和方法论不能相互脱离B.世界观和方法论就是哲学C.世界观和方法论密不可分、互为前提D.有什么样的方法论,就有什么样的世界观4.(2020福建泉州南安一中高二上月考,改编)心理学上有一种“自我实现的预言”的说法:当你为未知的未来许下一个预言,因为你相信事情会向预料的情况发展,所以你采取了加强的措施,这就提高了这个预言实现的可能性,最后的结果会同你自己的预言一样呈现在你眼前。
这种观点体现了()A.世界观决定方法论B.方法论影响世界观C.哲学是系统化理论化的世界观D.方法论决定世界观5.(2020黑龙江哈尔滨第三中学高二期末)中华文化崇尚和谐,中国“和”文化源远流长,蕴涵着天人合一的宇宙观、协和万邦的国际观、和而不同的社会观、人心和善的道德观。
高中英语新人教版)选择性必修四课后习题：Unit 2 Section A(课后习题)【含答案及解析】
Unit2ICONIC ATTRACTIONSSection A Reading and Thinking必备知识基础练Ⅰ.单词拼写1.The report was a (共同的) effort.2.Singapore is near the (赤道).3.Let’s go to the supermarket to buy the food and drinks for the (烧烤).4.As you can see,the first question he asked me was quite (简单的).5.As we passed by,a smell of bread drifted from some distant (面包店).6.You have read that sound makes air (振动),thus making sound waves.Ⅱ.短语填空1.When I study English,I like to put my dictionary within my reach so that I can it when necessary.2.In the next part,the author would most probably discuss with you how to for the lost time.3.Have you been your friends in the last few weeks?4.It is universally acknowledged that reading learning English.5.I always when I am with you.6. science or engineering,you’ll have no trouble finding work after graduation.7.We can on the Internet to learn more about the topic.8.We should analyse what they said and not just everything.Ⅲ.完成句子1.据说,这个故事被翻译成了20多种语言。
人教版高中物理必修一第二章单元测试（word版含答案）
阶段测试题（二）（测试范围：第二章匀变速直线运动的研究）（时间：90分钟分值：100分）一、选择题Ⅰ（本题共13小题，每小题3分，共39分。
每小题列出的四个备选项中只有一个是符合题目要求的，不选、多选、错选均不得分）1.物体从斜面顶端由静止开始下滑，经时间t到达斜面中点，则物体从斜面顶端滑到底端共用时间B C．2t D tA2. 如图1所示是甲、乙两物体从同一地点、沿同一方向做直线运动的v－t图像，则由图像可看出A．这两个物体两次相遇的时刻分别是1s末和4s末B．这两个物体两次相遇的时刻分别是2s末和6s末C．两个物体相距最远的时刻是2sD．4s末以后甲在乙的前面3.一辆汽车起步后在10s内速度达到80km/h，一列火车起步后达到这个速度需要60s。
两车的上述过程均可看作是匀变速直线运动，则关于该过程下列说法正确的是A. 汽车的加速度大B. 火车的加速度大C. 两车通过的位移相同D. 汽车通过的位移大4. 一辆汽车沿平直道路行驶，其v-t图像如图2所示。
在t=0到t=40s这段时间内，汽车的位移是A. 0B. 30mC.750mD. 1200m5．物体自O点由静止开始做匀加速直线运动，A、B、C、D为其运动轨迹上的四点，测得AB＝2m，BC＝3m，且物体通过AB、BC、CD所用时间相等，则下列说法正确的是A．可以求出物体加速度的大小B．可以求得CD＝4mC．可求得OA之间的距离为0.5mD．可求得OA之间的距离为1.5m6. 据分析，著名足球明星C罗曾在某次头球破门时重心上升了71cm，估算此次头球破门时C罗离地的时间应为A. 0.75sB. 0.38sC. 0.27sD. 0.54s7. 如图4所示，一汽车装备了具有“全力自动刹车”功能的城市安全系统，系统以50Hz 的频率监视前方的交通状况。
当车速v≤10m/s且与前方静止的障碍物之间的距离接近安全距离时，如果司机未采取制动措施，系统就会立即启动“全力自动刹车”，使汽车避免与障碍物相撞。
人教版高一数学必修四测试题(含详细答案)
高一数学试题（必修4）（特别适合按14523顺序的省份）必修4 第一章三角函数(1)一、选择题：1.已知A={第一象限角}，B={锐角}，C={小于90°的角}，那么A、B、C关系是（）A．B=A∩C B．B∪C=C C．AC D．A=B=C2 等于（）A B C D3.已知的值为（）A．－2 B．2 C．D．－4．下列函数中，最小正周期为π的偶函数是（）A.y=sin2xB.y=cos C .sin2x+cos2x D. y=5 若角的终边上有一点，则的值是（）A B C D6．要得到函数y=cos()的图象，只需将y=sin的图象（）A．向左平移个单位 B.同右平移个单位C．向左平移个单位 D.向右平移个单位7．若函数y=f(x)的图象上每一点的纵坐标保持不变，横坐标伸长到原来的2倍，再将整个图象沿x轴向左平移个单位，沿y轴向下平移1个单位，得到函数y=sinx的图象则y=f(x)是（）A．y= B.y=C.y=D.8. 函数y=sin(2x+)的图像的一条对轴方程是（）A.x=-B. x=- C .x=D.x=9．若，则下列结论中一定成立的是（）A. B． C． D．10.函数的图象（）A．关于原点对称 B．关于点（－，0）对称 C．关于y轴对称 D．关于直线x=对称11.函数是（）A．上是增函数 B．上是减函数C．上是减函数D．上是减函数12.函数的定义域是（）A．B．C． D．二、填空题：13. 函数的最小值是 .14 与终边相同的最小正角是_______________15. 已知则 .16 若集合，，则=_______________________________________三、解答题：17．已知，且．a)求sinx、cosx、tanx的值．b)求sin3x – cos3x的值．18 已知，（1）求的值（2）求的值19. 已知α是第三角限的角，化简20．已知曲线上最高点为（2，），由此最高点到相邻的最低点间曲线与x轴交于一点（6，0），求函数解析式，并求函数取最小值x的值及单调区间必修4 第一章三角函数(2)一、选择题：1．已知，则化简的结果为（）A． B. C． D. 以上都不对2．若角的终边过点(-3，-2)，则( )A．sin tan＞0 B．cos tan＞0C．sin cos＞0 D．sin cot＞03 已知，，那么的值是（）A B C D4．函数的图象的一条对称轴方程是（）A． B. C. D.5．已知，,则tan2x= ( ) A． B. C. D.6．已知，则的值为（）A． B. 1 C. D. 2 7．函数的最小正周期为（）A．1 B. C. D.8．函数的单调递增区间是（）A． B.C． D.9．函数，的最大值为（）A．1 B. 2 C. D.10．要得到的图象只需将y=3sin2x的图象（）A．向左平移个单位B．向右平移个单位C．向左平移个单位 D．向右平移个单位11．已知sin(+α)=，则sin(-α)值为（）A. B. — C. D. —12．若，则（）A. B. C. D.二、填空题13．函数的定义域是14．的振幅为初相为15．求值：=_______________16．把函数先向右平移个单位，然后向下平移2个单位后所得的函数解析式为________________________________三、解答题17 已知是关于的方程的两个实根，且，求的值18．已知函数，求：（1）函数y的最大值，最小值及最小正周期；（2）函数y的单调递增区间19．已知是方程的两根，且，求的值20．如下图为函数图像的一部分（1）求此函数的周期及最大值和最小值（2）求与这个函数图像关于直线对称的函数解析式必修4 第三章三角恒等变换(1)一、选择题:1.的值为 ( ）A 0BC D2.，，，是第三象限角，则（）A B C D3.设则的值是( )A B C D4. 已知，则的值为（）A B C D5.都是锐角，且，，则的值是（）A B C D6. 且则cos2x的值是（）A B C D7.在中，的取值域范围是 ( )A B C D8. 已知等腰三角形顶角的余弦值等于,则这个三角形底角的正弦值为（）A B C D9.要得到函数的图像，只需将的图像（）A、向右平移个单位B、向右平移个单位C、向左平移个单位D、向左平移个单位10. 函数的图像的一条对称轴方程是（）A、 B、 C、 D、11.若是一个三角形的最小内角，则函数的值域是( )A B C D12.在中，，则等于 ( )A B C D二、填空题:13.若是方程的两根，且则等于14. .在中，已知tanA ,tanB是方程的两个实根，则15. 已知，则的值为16. 关于函数，下列命题：①若存在，有时，成立；②在区间上是单调递增；③函数的图像关于点成中心对称图像；④将函数的图像向左平移个单位后将与的图像重合．其中正确的命题序号（注：把你认为正确的序号都填上）三、解答题：17. 化简18. 求的值．19. 已知α为第二象限角，且sinα=求的值.20.已知函数，求（1）函数的最小值及此时的的集合。
高中政治(新人教版)必修第四册同步习题：正确认识中华传统文化(同步习题)【含答案及解析】
第二框正确认识中华传统文化基础过关练题组一中华优秀传统文化的主要内容及特点1.(原创题)中华民族具有五千多年连绵不断的文明历史,创造了博大精深的中华文化。
可见,中华文化()①是我国各民族在交流、碰撞、交锋中发展起来的②是中华民族独特的精神标识,拒绝西方文化的影响③是我国各民族文化相互交融、相互促进之后的总和④是在与世界各国文化的交流、碰撞、交锋中发展起来的A.①②B.①④C.②③D.③④2.(2020河北石家庄一中高二下期中,改编)近年来,我国在许多国家开展了数百项内涵丰富的文化活动:富有中国特色的舞狮表演、川剧变脸,让白俄罗斯民众接触到了中国民俗文化;《诗经》吟唱和汉唐乐舞表演将“中国风”吹至柬埔寨;傣、景颇、阿昌等少数民族音乐跃动塞尔维亚……这体现了中华文化()A.具有其他民族文化无可比拟的优越性B.走在世界前列,引领发展C.吸收和借鉴外来文化的有益成果D.博大精深,具有独特标识3.(2020四川成都外国语学校高二月考,改编)农历九月初九是重阳节,“九九”谐音是“久久”,有长久之意,所以人们常在此日举行祭祖与推行敬老活动。
北京市大兴区举办了重阳节庆祝活动(见下图),举办此次活动的意义在于()①凸显传统节日及习俗是文化发展的基础②传播社会正能量③弘扬中华民族尊老敬老爱老的传统美德④弘扬中华民族见义勇为的传统美德A.①②B.②③C.①④D.③④4.(2020辽宁沈阳东北育才学校高二上期中)京剧、文房四宝、剪纸……这些极具传统特色的“中国元素”,在历史的演变中已变为人类文化宝库的瑰宝。
这些“中国元素”()①是中华民族的血脉和灵魂②是中华文化发展的力量源泉③体现了中华文化的博大精深④显示了中华文化的个性特征A.①②B.②④C.①③D.③④5.(原创题)习近平总书记强调:中华民族文艺创造力是如此强大、创造的成就是如此辉煌,中华民族素有文化自信的气度,我们应该为此感到无比自豪,也应该为此感到无比自信。
习近平总书记强调我们要有文化自信的原因是()①中华文化具有强大的凝聚力和连续性,是世界文明古国中唯一没有中断而延续至今的文化②中华文化始终走在世界前列,对周边国家和世界文明进程产生了深远影响③中华优秀传统文化是中华民族的突出优势,也是我们最深厚的文化软实力④中华文化深刻影响着当代中国社会的发展进步和世界各国人民的精神世界A.①②B.③④C.①③D.②④6.(2020辽宁沈阳东北育才学校高二月考,改编)墨子的“节用”思想对后世影响深远。
人教版高中语文必修四苏武传测试题含答案
新人教版高中语文测试卷课时作业12苏武传第一课时基础巩固一、积累运用1．下列语句中加点的字，解释不正确的一项是()A．既至匈奴，置币．遗单于币：财物。
B．复举剑拟．之，武不动拟：打算。
C．律知武终不可胁．，白单于胁：威胁。
D．子为父死，无所恨．恨：遗憾。
解析：B.“拟”，比划。
答案：B2．对下列语句中加点的“食”字，判断正确的一项是()①绝不饮食．②掘野鼠去草实而食．之③禀食．不至④给其衣食．A．①与②相同，③与④相同B．①与②相同，③与④不同C．①与②不同，③与④相同D．①与②不同，③与④不同解析：①“食”：给他吃的。
②“食”：吃。
③④“食”：粮食。
答案：C3．下列各句中，句式与例句相同的一项是()例：子卿尚复谁为乎A．何面目以归汉B．汉天子我丈人行也C．为降虏于蛮夷D．皆为陛下所成就解析：例句为宾语前置句。
A.宾语前置句；B.判断句；C.状语后置句；D.被动句。
答案：A4．下列句子中加点词的解释，错误的一项是()A．虞常果引．张胜引：牵攀、招供B．私候．胜曰候：拜访C．而收．系张胜收：逮捕D．阴．相与谋劫单于母阏氏归汉阴：阴谋解析：“阴”意为“暗中”。
答案：D5．对下列加点词语的解释不正确的一项是()A．扶辇下除．，触柱折辕除：殿阶B．阴．相与谋劫单于母阏氏归汉阴：暗地里C．吾母与弟在汉，幸．蒙其赏赐幸：幸运地D．武与副中郎将张胜及假．吏常惠等募士斥候百余人俱假：代理的，临时的解析：幸：希望。
答案：C6．下列各句中加点词与现代汉语意义相同的一项是()A．汉天子我丈人．．行也B．会缑王与长水虞常等谋反．．匈奴中C．武使匈奴，明年．．，陵降，不敢求武D．武父子亡功德，皆为陛下所成就．．解析：A项，“丈人”，古义：对老人和长辈的尊称；今义：指岳父。
C项，“明年”，古义：第二年；今义：今年的下一年。
D项，“成就”，古义：栽培，提拔；今义：在某方面取得业绩。
7．下列各组句子中加点的词用法和意义相同的一项是( )A ．子为．父死，无所恨 为．降虏于蛮夷，何以汝为见 B ．乃．幽武置大窖中 羝乳乃．得归 C ．君因．我降，与君为兄弟 因．厚赂单于，答其善意 D ．张胜许之，以．货物与常 以．状语武 解析：A 项，“替”，介词/“做”，动词；B 项，“就，于是”，连词/“才”，介词；C 项，“通过”，介词/“趁着”，介词；D 项，“用，拿”，介词。
高中数学人教版-必修三必修四测试卷(含答案)
高中数学人教版-必修三必修四测试卷(含答案)华鑫中学2011~2012学年第三次月考高一数学试卷（总分150）一、选择题：（以下每小题有且仅有一个正确答案，共40分）1、在100个产品中，一等品20个，二等品30个，三等品50个，用分层抽样的方法抽取一个容量20的样本，则二等品中A被抽取到的概率()A．等于15B．等于3 10C．等于23D．不确定2、已知点P（tanα，cosα）在第三象限，则角α的终边在（）A.第一象限B.第二象限C.第三象限D.第四象限3、已知弧度数为2的圆心角所对的弦长也是2，则这个圆心角所对的弧长是（）23A.2B. 1sin 2sinC.2sin1D.sin24、函数y ＝2sin(3x －π4)图象的两条相邻对称轴之间的距离是 A. π3 B. 2π3C.πD. 4π35、函数y ＝sin （π4 －2x)的单调增区间是 （ ）A.［kπ－3π8 ，kπ＋π8 ］(k ∈Z)B.［kπ＋π8 ，kπ＋5π8］(k ∈Z)C.［kπ－π8 ，kπ＋3π8］(k ∈Z)4D.［kπ＋3π8 ，kπ＋7π8］(k ∈Z)6、若,24παπ<<则（ ） A ．αααtan cos sin >> B ．αααsin tan cos >>C ．αααcos tan sin >>D ．αααcos sin tan >>7、已知函数1tan sin )(++=x b x a x f ，满足.7)5(=f 则)5(-f 的值 为 （ ） A ．5 B ．－5 C ．6 D ．－68、已知一点O 到平行四边形ABCD 的三个顶点A 、B 、C 的向量分别为a →、b →、c →,则向量等于( )A.a b c ++r r rB.a b c -+r r rC.a b c +r r r -D.a b c r r r --二、填空题（每小题5分，共7题合计35分）9、下列各数)9(85、)6(210、)4(1000、)2(111111中最小的数是____________。
人教版高中化学必修1第2章《化学物质及其变化》测试题(含答案)
第2章《化学物质及其变化》测试题一、单选题（每小题只有一个正确答案）1．当光束通过下列分散系时，能产生丁达尔效应的是( )A．蔗糖水 B．食盐水 C．豆浆 D．小苏打水2．下列关于氧化还原反应的说法正确的是( )①有一种元素被氧化肯定有另一种元素被还原②阳离子只有氧化性，阴离子只有还原性③在K、Fe2＋、S2-、Na＋中只有1种粒子不具有还原性④由X变为X2＋的反应是氧化反应⑤金属单质在反应中只作还原剂⑥非金属单质在反应中只作氧化剂⑦含最高价元素的化合物，一定具有强氧化性A．③④⑤ B．④⑤⑦ C．①③④⑤⑥ D．②③④⑤⑥⑦3．在实验中手不慎被玻璃划破，可用氯化铁溶液应急止血，其主要原因可能是( ) A．氯化铁溶液有杀菌消毒作用B．氯化铁溶液能使血液聚集沉降C．氯化铁溶液能产生氢氧化铁沉淀堵住伤口D．氯化铁能使血液发生化学反应4．分类是学习和研究化学的一种常用的科学方法。
下列分类合理的是( )①根据酸分子中含有H原子个数将酸分为一元酸、二元酸等②根据反应中是否有电子的转移，将化学反应分为氧化还原反应和非氧化还原反应③根据电解质在熔融状态下能否完全电离将电解质分为强电解质和弱电解质④根据元素原子最外层电子数的多少将元素分为金属和非金厲⑤根据反应的热效应将化学反应分为放热反应和吸热反应A．②③ B．②⑤ C．①②④ D．②③④⑤5．下列各组离子在溶液中因发生氧化还原反应而不能大量共存的是( )A．Na+、H+、CO32-、Cl- B．H+、Fe2+、Cl-、NO3-C．Na+、Al3+、OH-、Cl- D．NH4+、H+、OH-、NO3-6．下列离子方程式正确的是( )A．硫酸钠溶液与氢氧化钡溶液反应：SO42-＋Ba2+＝BaSO4↓B．大理石与稀硝酸反应：CO32-＋2H+＝CO2↑＋H2OC．氯化铁溶液与碘化钾溶液反应：Fe3+＋2I-＝Fe2+＋I2D．氯化镁容液与氨水反应：Mg2+＋2OH-＝Mg(OH)2↓7．稀土金属铈（Ce）在空气中易氧化变暗，受热时燃烧，遇水很快反应，已知：①铈常见的化合价为+3和+4；②氧化性：Ce4+>Fe3+。
人教版高中语文必修四理解性默写题精选及答案
高中语文必修四理解性默写题精选《望海潮》柳永全文默写上阙中运用比喻描写杭州城内美丽风光的句子: 万人家。
上阙中最能体现诗人炼字功力的句子: 运用数量词写景的千古名句:下阙中运用互文修辞手法的句子:下阙中运用借代修辞手法的句子: 异日图将好景，归去凤池夸。
2、《雨霖铃》柳永全文默写上阙中写景来渲染离别凄凉气氛的句子: 寒蝉凄切，对长亭晚，骤雨初歇。
上阙中虚写的句子:离别时依依不舍的细节描写的句子: 执手相看泪眼，竟无语凝噎。
下阙抒发双重悲哀的直抒胸臆的句子: 下阙虚写了别后想象美景的千古名句: 以乐景写悲情的写景句子:从形、声、色三位一体写景的名句是:使用比喻(明喻)承上启下的句子: 江山如画，一时多少豪杰。
下片中写出周瑜儒将风度和运筹帷幄的句子: 羽扇纶巾，谈笑间，樯橹灰飞烟灭。
直抒胸臆体现对比周瑜自己失落的句子: 人生如梦，一尊还酹江月。
4、《定风波》苏轼上阙中表现作者轻视风雨的句子: 下阙描写雨过天晴的句子: 料峭春风吹酒醒，微冷，山头斜照却相迎。
最能体现苏轼超然物外情怀的句子: 回首向来萧瑟处，归去，也无风雨也无晴。
5、《水龙吟.登建康赏心亭》辛弃疾运用比喻、拟人修辞手法描写远望景物的句子: 遥岑远目，献愁供恨，玉簪螺髻。
运用传统意象抒发游子之情的句子:用典表现自己社会责任感(不会归隐)的句子: 休说鲈鱼堪脍，尽西风，季鹰归末？用典表现自己对朝中小人的不满的句子: 求田问舍，怕应羞见，刘郎才气。
用典表现自己对时局，国势关注的句子: 可惜流年，忧愁风雨，树犹如此。
6、《永遇乐.京口北固亭怀古》辛弃疾。
上阙缅怀京口籍英雄孙权的句子:上阙缅怀京口籍英雄刘裕的句子: 想当年，金弋铁马，气吞万里如虎。
下阙用典讽刺刘义隆的句子: 元嘉草草，封狼居胥，赢得仓皇北顾。
下阙追忆自己当年南归的句子: 四十三年，望中犹记，烽火扬州路。
用典表明对淡忘国耻的但有的句子: 可堪回首，佛狸祠下，一片神鸦社鼓。
用典表现自己也想为国而战的句子:7、《醉花阴》李清照上阙一语双关的句子是: 佳节又重阳，玉枕纱厨，半夜凉初透。
高中英语(新人教版)选择性必修四同步习题：UNIT 2 Part 2(同步习题)【含答案及解析】
Part 2Learning About Language & Using Language基础过关练Ⅰ.单词拼写1.Your qualifications (使享有权利) you to a higher salary, so our company is suitable for you.2.Adidas is an official (赞助者) of the World Cup, so its logo appears in the field.3.The doctor stuck a needle into my finger to get a blood (样本).4.Micronesia is probably the best place to (潜水) in the western Pacific Ocean.5.They took up arms and fought for justice and (自由).6.The care of older people is being placed firmly within the (范围)of the family.7.Summer is the p season for tourism, but hot climate brings physical discomfort for tourists.8.When the government came to power, he was named (部长) of culture.9.The idea for a bridge across the (海峡) came up many years ago.10.The (纪念碑) was erected(建立;建造) in honour of the soldiers who sacrificed their lives for the country.11.Soldiers armed with bows and (箭)have invaded their villages.Ⅱ.选词填空1.One evening the sun was just setting when beautiful large birds appeared out of the bushes.2.A fund will be by the volunteers for the dead men's families.3.The lecture made by the expert provided methods for resolving conflicts.4.China and Russia the majority of musk deer.5.All electronic computers five units although they are different kinds.6.The event is organized by 30 students who art management.7.On the one hand, I want to go to the party, but I ought to be studying.Ⅲ.单句语法填空1.Today we have the (free) to decide our own futures, which is social progress to the younger generation.2.The film, (base) on the story of this general, attracted people'sinterest all over the country.3.The sale usually takes place outside the house, with the audience (seat) on benches, chairs or boxes.4.(catch) in a heavy rain, he was all wet.5.We all felt (excite) that he won the first gold medal for our country at the 2018 Winter Olympics.6.Tony is really amusing and tells jokes when he thinks we're getting (bore).7.We could feel the (vibrate) from the trucks passing outside. Ⅳ.翻译句子1.当我打开门时,我发现地上覆盖着落叶。
人教版英语必修四单元测试 Unit 2 Working the land(Word版含答案)
高中英语必修四Unit 2 Working the land 单元测试姓名：__________ 班级：__________ 学号：__________一、单词拼写（词汇运用）（共15题；共15分）1.A protein within that g________ acts a lot like wheat protein.2.Children require proper ________(营养) to be strong.3.They were s________ to get out the burning car.4.H________ is one of the biggest problems in some developing countries.5.Please state your name, age and ________(职业)．6.According to official ________(统计数字) the disease killed a large amount of people.7.There is h________ in many parts of the world, including rich countries.8.Not only will they be paid for their ________(粮食) in cash but in online payment.9.After the conference, the secretary passed me a ten-page ________(概要，摘要).10.In his speech he u________ several points.11.Do as I tell you, or you'll r________ it later on.12.He was only candidate; t________, he was elected.13.We import raw materials and energy and ________(出口) mainly industrial products.14.The twins are so alike that I always ________(混淆)them with each other.15.People can't see any b________ directly with their naked eyes.二、完形填空（共15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。
人教版高中物理必修1第二章：章末测试题(拔高版)(含解析)
第二章：匀变速直线运动的研究章末测试（拔高版）(时间：60分钟分值：100分)一、选择题(本题共8小题，每小题6分，共48分．在每小题给出的四个选项中第1～5题只有一项符合题目要求，第6～8题有多项符合题目要求．全部选对的得6分，选对但不全的得3分，有选错的得零分)1．利用速度传感器与计算机结合，可以自动作出物体运动的图象，某同学在一次实验中得到的运动小车的图象如图所示，由此可以知道A．小车的最大位移约为 B．小车运动的最大速度约为C． 9秒附近物体的加速度最大 D． 9秒附近物体的位移最大【答案】B【解析】【详解】图中每一小格为“面积”为0.1，面积超过方格一半算一个，不足半格舍去，总共有86格，所以总“面积”为8.6m，小车的最大位移是为8.6m，故A错误．由图读出，小车运动的最大速度约为0.8m/s，故B正确；9秒附近物体的速度时间图象斜率为零，加速度为零，最小，故C错误．由图象可知15s附近物体的位移最大，故D错误．故选B.2．甲、乙两个物体从同一地点、沿同一直线同时做直线运动，其图象如图所示，下列说法正确的是A．时甲和乙相遇B．时甲的速度方向反向C．时乙的加速度方向反向D．内甲的位移与内乙的位移相等【答案】D【解析】甲、乙两个物体从同一地点沿同一方向做直线运动，当位移相等时，两者相遇；根据速度图象与坐标轴围成面积表示位移，可知，在时，乙的位移大于甲的位移，说明两者没有相遇；故A错误．由图知，在时甲乙的速度方向没有改变，都为正，方向相同，故B错误．速度图象的斜率表示加速度，由数学知识得知，在时，乙的加速度方向仍沿负方向，没有改变，故C错误．图象与坐标轴围成面积代表位移，根据图象可知内甲的位移，内乙的位移，故D正确．故选D.3．一个物体从静止开始速度均匀增加，经t秒速度达到vt,然后做匀速直线运动，下面正确的说法是（）A．t秒末速度达到最大B．运动最初一瞬间速度和加速度都为零C．速度为零时加速度为零，加速度为零时速度为零D．速度最大时加速度最大【答案】A【解析】A、物体先做匀加速直线运动，后做匀速运动，则匀加速直线运动的末速度最大，即t秒末速度最大；故A正确。
2020年人教版英语必修四(十二省区)强化练习：unit 2 section 4(含答案)
2020年精编人教版英语资料Unit 2Section ⅣⅠ.阅读理解AI never really paid much attention to one particular flower until this year. The tulip (郁金香). Yes，it is beautiful. It is one of the first signs of spring. Still，I can't say that I have attempted to add it to our garden simply because it has such a short lifetime.Tulips are suitable to be gifts. So, the few we have in and around our house have come from the gifts given to us or the ones I have chosen for my wife like this year. Because the weather warmed very early, I wanted to buy something “spring-like”to begin growing. I chose a small tulip already producing new leaves and gave it to my wife.In a very short time it began growing. Because it was truly the first visible sign of spring for me，I paid more attention to it and I'm glad I did. Every morning it opened in response to the sun welcoming all that it had to offer. Every evening it closed. This went on without hesitation for days. Then one day I found it spread its flowers fully in the sunlight. I had never seen it in that way before. Out of curiosity I touched the flower and two leaves. I felt terrible. It was then that I realized that the flower had come to the end of its days. That was when I realized how much I had been missing by not paying more attention to the tulip.Still，the most amazing part was that it really wasn't over yet. When I would see it as a gone-too-soon dead flower，it was already planning for a comeback. You see, the remaining leaves begin storing energy for future growth next year.文章大意：本文讲述了作者对郁金香一步一步至完全的认识了解。
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1 / 10第二章测试题一、选择题：本大题共12小题，每小题4分，满分48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．已知向量a =（x ，1），b =（3，6），⊥ ，则实数x 的值为（ ）A ．12B ．2-C ．2D ．21-2．设向量a r ＝（-2，1），b r ＝（1，λ） （λ∈R ），若a r．b r的夹角为1350，则λ的值是（ ）A ． 3B . -3C .3或-133或133．已知||10,||12a b ==r r ，且1(3)()365a b ⋅=-r r，则a b r r 与的夹角为（ ）A ．60°B ．120°C ．135°D ．150°4．若平面向量(1,)a x =r和(23,)b x x =+-r 互相平行，其中x ∈R .则a b -=r r（ ）2 / 10A. 2-或0；B. C. 2或 D. 2或10.5．在ABCAB ABC ∆=+⋅∆则中，若,02是（ ）A ．直角三角形B ．锐角三角形C ．钝角三角形D ．等腰直角三角形6．已知,a b r r 是两个非零向量，给定命题:p ||||||a b a b +=+r r r r ;命题:q 存在t R ∈，使得a tb =r r;则p 是q 的（ ）A ．充分条件B ．必要条件C ．充要条件D ．既不充分也不必要条件7．平面向量即二维向量，二维向量的坐标表示及其运算可以推广到维向量，n 维向量可用（x 1，x 2，x 3，…，）表示，设123123()()n n a a a a a b b b b b ==rr，，，…,，，，，…,，规定向量夹角的余弦时，cos θ=12211.()()ni i i nni i i i a ba b ===∑∑∑(1111a =r，，，…，），(1111-b =r，，，…，）时，cos θ=（ ）A ．B ．C ．D ．)3(≥n n 与θnn 1-n n 3-n n 2-n n 4-3 / 108． O 是ABC ∆所在平面内一点，且满足2OB OC OB OC OA-=+-u u u r u u u r u u u r u u u r u u u r ，则ABC ∆的形状为（ ）A ．直角三角形B ．等腰直角三角形C ．斜三角形D ．等边三角形9．如图，非零向量==⊥==λλ则若为垂足且,,,,a C OA BC （ ）A 2||a B ||||b a C 2D ba ⋅10．已知a 和b 是非零向量，（t ∈R ），若1，2，当且仅当41时，取得最小值，则向量a 、b 的夹角θ为A ．π6B ．π3C ．2π3D ．5π611．如图，O A B 、、是平面上的三点，向量b OB a OA ==,，设P 为线段的垂直平分线CP 上任意一点，向量p OP =，若,2||,4||==则=-⋅)(（ ）4 / 10A .1 B.3 C.5 D. 612．设12(,)a a a =r ，12(,)b b b =r.定义一种向量积：12121122(,)(,)(,)a b a a b b a b a b ==r r g g .已知1π(2,),(,0)23m n ==u r r，点(,)P x y 在sin y x =的图像上运动，点Q 在()y f x =的图像上运动，且满足OQ m OP n =⊗+u u u r u r u u u r r（其中O 为坐标原点），则()y f x =的最大值A 及最小正周期T 分别为（ ）A. 2,πB. 2,4πC. 1,42π D. 1,2π二、填空题：本大题共4小题，每小题4分．共16分． 13．已知6=8=10=-=+．14．已知与为互相垂直的单位向量，，且与的夹角为锐角，则实数的取值范围是 .15．已知e r 为单位向量，||a r=4，a e r r 与的夹角为π32，则a er r 在方向上的投影为 ．16．在直角坐标平面内，已知点列()()()(),,2,,,2,3,2,2,2,133221ΛΛn n n P P P P 如果k 为正偶数，则向量kk p P P P P P P P 1654321-++++Λ的坐标（用k 表示）为. i r j r 2,a i j b i j λ=-=+rr r r r a rb r λ5 / 10三、解答题：本大题共6小题，共56分，解答应写出文字说明．证明过程或演算过程．17.（10分）已知向量a r )1,(2-=mx ，b r ),11(x mx -=（m 为常数），若向量a r 、b r的夹角)2,0[πθ∈，求实数x 的取值范围.18．设12e e u r u u r 、是两个不共线的向量，1212122,3,2AB e ke CB e e CD e e =+=+=-u u u r u r u u r u u u r u r u u r u u u r u r u u r，若A 、B 、D 三点共线，求k的值.19．已知||2a =r||3b =r,a b r r 与的夹角为60o， 53c a b =+r r r ，3d a kb =+u r r r ，当实数k 为何值时，有（1）c r ∥d u r ， （2）c d ⊥r u r .6 / 1020．（12分）已知平面向量是直线上的一个动点，求的最小值及此时的坐标．21．（12分）如图，△为直角三角形，,),4,0(,90轴上在点y M C -==∠ο),(21+=且点C 在x 轴上移动．（1）求点B 的轨迹E 的方程；（2）过点l F 的直线)21,0(与曲线E 交于P 、Q 两点，设NQ NP a a N 与),0)(,0(<的夹角为a 求实数若,2,πθθ≤的取值范围；M OP OB OA ),1,2(),1,5(),7,1(===⋅OM7 / 10参考答案一．选择题1. B2. D3. B4. C5. A6. A7. C8. A9.A 10. C 11. D 12. C二．填空题13．10 14．15．- 216．⎪⎪⎭⎫ ⎝⎛-+322,21k k()1,2(2,)2-∞-⋃-8 / 10三．解答题 17.解： ∵向量a br r 、 的夹角)2,0[πθ∈，a b⋅r r20(1)0.11mx x x mx x mx mx =-=>⇒->-- ①当0=m 时，0<x ；②当0>m 时，01,0)1(<>∴>-x mx m x x 或；③当0<m 时，.01,0)1(<<∴<-x mmx x综上所述：当0=m 时，x 的范围是);0,(-∞当0>m 时，x 的范围是),1()0,(+∞-∞m Y ；当0<m 时，x 的范围是).0,1(m18．()121212234BD CD CB e e e e e e =-=--+=-u u u r u u u r u u u r u r u u r u r u u r u r u u rQ ，若A 、B 、D三点共线，则AB BD u u u r u u u r与共线，∴设AB BD λ=u u u r u u u r，即.由于与不共线可得： 故.19.(1)若∥， 得 ， （2）若，得. 20．解：设，121224e ke e e λλ+=-u r u u r u r u u r1e u r 2e u u r 112224e e ke e λλ==-u r u ru u r u u r ，，2,8λk ==-95k =⊥2914k =-),(y x =9 / 10∵ ∴， ∵， ，∴， ∴当有最小值-8.∴ . 21．（1），（2）设直线l 的方程为,共线与OP OM ),2(,2y y y x ==)7,21(y y --=-=)1,25(y y --=-=)1)(7()25)(21(y y y y MB MA --+--=⋅8)2(52--=y MB MA y ⋅=,2时)2,4(,=⋅取最小值时)(21AC AB AM +=Θ),0,(),2,0(),,(.x C yM y x B BC M -∴则设的中点是).4,(),,2(-==x y x ,0)4,(),2(,0,,90=-⋅=⋅⊥∴=∠x y x CA CB CA CB C οΘ.22y x =∴),,(),,(),,(,21112211a y x NP y x Q y x P kx y -=+=10 / 10由知恒成立．22()NQ x y a =-u u u r，，2122y kx x y ⎧=+⎪⎨⎪=⎩，，22210440=＞x kx k --=∆+，恒成立..1,22121-==+∴x x k x x 11220≥0≥CB NQ x y a x y a --u u u r u u u rg g 由，知（，）（，），2121212()≥0x x y y a y y a +-++，222121111)()224++≥0.y kx k k ak x x a a =+∴-+-++Q 又，（）（22342≥a a k a--∴23140.0,.22≤≤a a a a a --∴<∴-又。