杨浦五角场新王牌补习班高中课本总汇(1)
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例1(1)如果把上升20m 记作+20m ,那么下降15m 记作 。
(2)海平面的高度一般用 m 表示,比海平面高8848m 的山峰处,它的高度记作海拔 m ,比海平面低11034m 的海沟处,它的高度记作海拔 m 。
(3)粮食产量增产12%,记作+12%,则减产8%记作 。
例2 某次考试成绩平均85分,以85分为标准,老师将某一小组10名同学的成绩简记为: +9,-7,+10,+15,0,—13,—12,-4,+11,-7,则这10名同学的总成绩为多少?
例3 表达出下列语句所表示的意义:
(1)向东走-100米
(2)气温上升-3℃
(3)支出-100元
例4 下列所画数轴对不对?如果不对,指出错在哪里.
例5 试一试:用你画的数轴上的点表示4,1.5,-3,-
73,0
例6.有4个数,最小的是a ,每相邻两个数之间的差是3,这四个数的和是多少?
例7.一盒糖连盒重1100克,吃掉一半后,连盒重w 克,糖重几克? ①②-1021③④0
⑤0⑥0⑦0。
1.下列关于电势差的说法中,错误的是( )
(A)电势差是标量,但有正、负,单位是伏特
(B)电场中两点间的电势差与电场力对电荷所做的功成正比,与被移送的电荷量成反比
(C)两点间的电势差,数值上等于单位电荷从其中一点移到另一点电场力所做的功
(D)两点间的电势差与被移送的电荷量的乘积,数值上等于被移送电荷电势能的变化量
2.关于电荷的电势能及电场力做功的下列说法中,正确的是( )
(A)电势能具有相对性,只有先规定电场中某一点的电势能为零后,才能确定电荷在电场中某点的电势能的值
(B)在静电场中,使某电荷从某点出发后沿任何途径回到出发点的过程中,电场力所做的功不一定为零
(C)电荷沿电场线方向移动时,其电势能一定减小
(D)电场力对正点电荷做正功时,电荷的电势能减小;电场力对负点电荷做正功时,电荷的电势能增加
3.如图所示是一个匀强电场的等势面,每两个相邻等势面相距2 cm由此可以确定电场强度的方向和数值分别是( )
(A)竖直向下,E=100 V/m (B)水平向左,E=100 V/m
(C)水平向左,E=200 V/m (D)水平向右,E=200 V/m
7、某电场的电场线和等势面如图所示,图中实线表示电场线,虚线表示等势面,过a、c两点的等势面的电势分别为=50 V,=20 V,那么a、c连线的中点b的电势为( )a c b
(A)等于35 V (B)大于35 V (C)小于35 V (D)等于15 V。
第十章 B 磁场对电流的作用 左手定则(一)确定磁场对电流有力的作用1.类比与逻辑推理问题1:在以前的学习中我们已经知道:电场对放入其中的电荷有力的作用,磁场对放入其中的什么东西会有力的作用呢?问题2:磁场对磁体的作用力与电场对电荷的作用力一样都是通过场这种物质实现的,通过上一节课的学习,我们知道和磁体一样,电流周围也有磁场存在,鉴于以上事实,我们可以得到怎样的推论?2.演示实验验证3.小结和过渡通过类比和在已有事实基础上的推理,我们可以猜测到磁场对电流可能有力的作用。
通过实验,我们证实了这一猜测。
我们得到了本设计的第一个结论:磁场对电流有力的作用。
同时,我们不禁要问磁场对电流的作用力是怎样的?这个力的方向与哪些因素有关?(二)探究磁场力的方向与磁场、电流方向间的关系,建立左手定则1.学生实验(1)装置:教材PP84图10-17所示的实验装置(2)记录数据:填表说明:“向左”用“←”表示;“向右”用“→”表示;“向上”用“↑”表示;“向下”用“↓”表示;“向我而来”:磁场用“·”表示,电流用“ ”表示,磁场力用“向外”表示 “离我而去”:磁场用“×”表示,磁场力用“向里”表示(3)观察记录,寻找规律2.借助三维活动支架寻找规律教师:从表格中观察记录我们可以确认磁场方向确实与磁场、电流的方向都有关,但到底是什么关系,我们感到很难看清楚。
我们可以借助这个三维活动支架再来试试。
(支架的三根棒颜色不同,但都很鲜艳。
一端连结在一起,另一端可活动)按照学生实验中的某一组记录,将支架的棒1、棒2、棒3依次调整到与磁场、电流、磁场力一致的方向。
(注意:实验后保持三根棒的相对位置不变,供进一步交流、研讨用) ·然后再按照第二组记录,转动支架,先使棒1与磁场方向一致,再绕棒1旋转支架,使棒2与电流的方向一致,这时发现棒3的方向正好与磁场力的方向一致。
再对照几组记录用同样的方法操作。
学生可以发现不管对照哪一组记录,支架的三根棒的空间位置均相同,即可以得到结论:磁场、电流、磁场力三者的方向间存在确定的空间关系。
高一上词汇复习精简版(Unit 1-2)Unit 1 (新世纪)1. introduction n. 介绍2. professional n. 专业人员4. gain v. 获得5. impact n. 影响;作用8. patient n. 病人11. traditionally adv. 传统上14. style n. 风格;款式15. trend n. 趋势;时尚18. tiring adj. 令人疲劳的19. demanding adj. 要求高的;费力的20. rewarding adj. 值得做的,有意义的21. meaningful adj. 有意义的22. challenging adj. 具有挑战性的24. graduate n. 毕业生;毕业26. career n. 事业,职业27. disagree v. 不同意29. management n. 管理31. grateful adj. 感激的32. compose v. 创作;写作短语1. all walks of life 各行各业2. try one’s best 尽最大努力3. be involved in 参与;忙于4. all through one’s life 一生5. check in 签到6. even though 虽然,尽管7. take an interest in 对..产生兴趣8. make a decision 做决定Unit1 (牛津)2. glance v. 匆匆一看3. sigh v. 叹息4. senior adj. 级别高的7. communicate v. 交流11. impression n. 印象13. assistance n. 帮助14. without hesitation 毫不犹豫15. remark v. 说;评论16. remind v. 提醒18. signal v.表示19. hostility n. 敌意21. confusion n. 困惑22. maintain v. 保持23. consider v. 认为24. lack of 缺少25. last v. 持续26. avoid v. 避免27. respect n. 尊敬28. authority n. 权力30. concentration n. 专心31. subtle adj. 微妙的32. stare v. 盯着;凝视33. rude adj.粗鲁的高一下词汇预览版Unit 1(新世纪)1.determine v. 影响;决定2.rail n. 铁路3.efficient adj. (指人)有能力的;能胜任的4.journey n. (尤指)长途旅行,旅程5.seaport n. 海港;海港市镇6.inland adj. 内地的,内陆的7.waterway n. 水路,航道8.historical adj. 历史的;与历史有关的9.site n. 场所;遗址10.limited adj. 有限的,不多的11.regional adj. 地区的,区域的12.safety n. 安全;平安13.decade n. 十年14.destination n. 目的地15.highway n. 公路,大路16.state n. 国家;政府v. 说明;陈述17.inexpensive adj. 不贵的;廉价的18.depart v. 离开,出发19.cycle v. 骑自行车(或三轮车、摩托车)20.steep adj. 陡峭的;险峻的21.native n. 本地人,本国人adj.出生地的;本国的,本地的22.generally speaking 一般而言23.depend on 依靠;依赖24.on schedule 按时25.agency n. 代理处26.option n. 选择27.sort v. 将...分类;整理28.sort out 解决;从一批中挑出29.province n. 省30.exhibit n. 展览品,陈列品31.shopping mall (有屋顶的)大型购物商场32.one-way ticket 单程票33.round trip 往返旅行34.tour guide 导游35.brochure n. 手册;小册子36.duration n. 期间;持续时间37.approx. adv. (approximately)大约,大概38.spectacular adj. 壮观的;富丽堂皇的39.outing n. 短途旅行;远足40.marine adj. 海的;海产的41.habitat n. 栖息地;产地42.darling adj. & n. 惹人爱的,心爱的43.permanent adj. 永久的44.shark n. 鲨鱼45.aquarium n. 水族馆46.mysterious adj. 神秘的;难解释的47.surround v. 围绕48.entertaining adj. 使人愉快的;有趣的49.jewelry n. 珠宝;首饰50.feature n. 特点;特征v. 以...为主要内容;特写51.workshop n. 车间52.arrange v. 安排53.coach n. 长途汽车54.within arm’s reach 伸手可及的语法填空专题2016年上海崇明区高考英语二模(A)Happiness Is an AttitudeThe 92-year-old confident and proud lady, who is fully dressed each morning by eight o’clock, with her hair fashionably combed and makeup perfectly applied, (25)________ ________ she’s legally blind, moved to a nursing home today.Her husband of 70 years recently passed away, (26)__________ (make) the move necessary.After many hours of waiting patiently in the hall of the nursing home, she (27)_________ (smile) sweetly when told her room was ready. As she got into the elevator (28)__________ her wheelchair, I provided a description of her tiny room.“I love it,” she started with the enthusiasm of (29)__________eight-year-old child having just been presented with a new dog.“Mrs. Jones, you haven’t seen the room…just wait.”“That has (30)_________ to do with it,” she replied. “Happiness is something you decide on ahead of time.(31)_________ I like my room or no t doesn’t depend on how the furniture is arranged…it’s how I arrange my mind. I already decided to love it. It’s a decision I make every morning when I wake up. I have a choice; I can spend the day in bed recounting the difficulty I have with the parts of my body (32)________ no longer work or get out of bed and be thankful for the ones working. Each day is a gift, and (33)______ _____ _____ my eyes open, I’ll focus on the new day and all the happy memories I’ve stored away…just for this time in my life.”(B)Sculptor Builds Dubai’s Soaring Burj Khalifa Skyscraper out of Toothpicks to Bag World RecordA sculptor has scaled new heights by building the world’s tallest toothpick (牙签) model.Stanley Hayes Munro, 45, from Syracuse, New York, is a toothpick engineer, who (34)________ (hook) by toothpick models since he built his first sculpture in school when creating a structure that (35)_________ support the weight of an egg.Now, he has won the world record for the tallest toothpick structure with a sculpture of the Burj Kahlifa, Dubai. For Stanley though, he has always been more concerned with the integrity(完整性) of his work. Stanley said: “I’ve never cared for counting toothpicks, wasting to othpicks, or the number of toothpicks (36)________ (use) in any construction. But an engineering problem you’ve got to create a strong structure is a problem worth (37)__________(solve).” “I made my first toothpick structure in an art class when I was in Grade 5,” he continued. “The assignment was to build something 25 centimeters tall and to have it (38)_________ (hold) the weight of an egg. Mine held my desk and from that point I became interested in it.”“Everybody likes to ask whether my sculptures will collapse when I build them, but they are much (39)__________ (strong) than people think,” he said. “It was not really the height but the shape of the outer walls (40)____________was the biggest challenge with Burj Khalifa. There wasn’t a flat surface anyw here and I had to individually construct each level,” he said.2016年上海奉贤区高考二模`(A)Your next Disney obsession has arrived! Zootopia(疯狂动物城)hit theaters on March 4, and it’s fun at the movies for the entire family. If you’re in the mood to smile, Zootopia is the movie for you. The new Disney movie 25___________ (release) on March 4, starring Jason Bateman, Ginnifer Goodwin, Idris Elba and more. Critics are obsessed 26_________ Zootopia——Check out 27___________ the critics are saying about Zootopia now!---Zootopia is the best Disney animated film that I have seen in a long time. This is a movie that works for everyone. 28__________ doesn't matter whether you're 4 years old or 40 years old.---I love the characters. They do such a great job of building up Judy Hopps(兔子朱迪)from the moment she comes on screen and I think I will remember her as one of my favorite Disney characters.---Zootopia is smart, funny, and is mature in its storytelling and in its message. It’s very nice to see a movie dir ected at kids that has respect and treats kids as people who 29__________ understand complex themes, not mindless creatures that need simple cliched(刻板的)messages.---I predict that Zootopia will be one of the 30__________ (well-known) animated films of the following years. The film does what every animated film should do; it tells a solid story with a lot of emotional depth, and a message that can hopefully teach kids important lessons. The film is also funny, smart, beautifully animated, 31_________ (fill) with great characters, and features great voice work. If you have kids, and they 32________ (not see) this film yet, it’s safe to say they’d enjoy it, b ut they may possibly take an important life lesson away from seeing it too.(B)Leonardo DiCaprio(莱昂纳多·迪卡普里奥)was born in Hollywood. His parents met while 33_________ (attend) college and then moved to Los Angeles. He was named Leonardo because his pregnant mother was looking at a Leonardo da Vinci painting in a museum 34__________ DiCaprio first kicked.He dropped out of high school following his third year, eventually 35_________ (earn) his general equivalency diploma (GED).DiCaprio made his big screen breakthrough in 1992, 36_________ he was chosen by Robert De Niro out of 400 young actors to play the lead role in This Boy's Life.In 1997, DiCaprio starred in James Cameron's Titanic (1997) as twenty-year-old Jack Dawson(泰坦尼克号男主人公). The film became the highest-grossing film to date, and his face appeared on the covers of at least fourteen magazines.DiCaprio was also a dedicated environmentalist. In November 2010, DiCaprio donated $1 million to the Wildlife Conservation Society at Russia's tiger summit. DiCaprio's persistence in reaching the event after encountering two plane delays caused Prime Minister Vladimir Putin 37_________ (describe) him as a "real man".At the 2016 Oscar ceremony, DiCaprio’s 38_________ (win) the award for Best Actor impressed all the audience present. He expressed his appreciation and worry for the environment when he said: Climate change is real, and it is happening right now. It is the most urgent threat 39___________ (face) our entire species, and we need to work collectively together and stop procrastinating(拖延). We need to support leaders around the world who do not speak for the big polluters, but who speak for all of humanity, for the indigenous people of the world, for the billions and billions of underprivileged people out there who would be most affected by this, for our children’s children, and for those people out there 40_________ voices have been drowned out by the politics of greed.(A)“Time,” says the proverb, “is money”. This means that every moment well-spent may put some money into our pockets.If our time (25) __________ (employ) usefully, it will either turn out some useful and important piece of work which will fetch its price in the market, or it will add to our experience and increase our capacities so as to enable us to earn money when the proper opportunity comes. Let those, (26) ___________ think nothing of wasting time, remember this.Our life is nothing more than our time. To kill time is therefore a form of suicide. We are shocked (27) _________ we think of death, and we spare no pains, no trouble, and no expense to preserve life.But we often care nothing about the loss of an hour or of a day, (28) _________ (forget) that our life is the sum total of the days and of the hours we live. Our life is a brief period measuring some seventy or eighty years in all. So a day or an hour (29) __________ (waste) is therefore so much life lost.But nearly one third of this has to be spent in sleep; some years have to be spent over our meals; some in watching over the sick-beds of our (30) __________ (near) relatives; some in making journeys on land and voyages by sea.Now if all these years were to be decreased from the term over which our life extends, we shall find about twenty or thirty years at our disposal (处置) for active work. (31) __________ remembers this can never willingly waste a single moment of his life.The precious hours of childhood and youth, if properly used, (32) _________ (supply) us with incalculable advantages. If we allow these morning hours of life to slip away, we shall never be able to make up for the loss.(B)Home on the WayPeople need homes: children assume their parents’ place as home; boarders call school“home”on weekdays; married couples work together (33) __________ (build) new homes; and travelers...have no place to call“home”, at least for a few nights.So how (34) _________ people who have to travel for extended periods of time? Don’t they have the right to have a home? Of course they do.Some regular travelers take their own belongings: like bed sheets, toothbrushes and family photos to make them feel like home (35) ______ ______ ______ they are; some stay for long periods in the same hotel and as a result become very familiar with service and attendants; others (36) __________ simply put some flowers by the hotel window to make things more homely. Furthermore, driving a camping car during one’s travels and sleeping in the vehicle at night is just like (37) __________ is generally thought of as “home” -- only mobile!And how about maintaining relationships while in transit? Some keep contact with their friends via internet; some send letters and postcards, or even photos; (38) __________ may just call and say hi, just to let their friends know that they’re still alive and well. People find ways to keep in touch. (39) __________ (make) friends on the way helps travelers feel more or less at home. Backpackers in youth hostels may become very good friends, even closer than siblings.Nowadays, fewer people are working in their local towns, so how do they develop a sense of belonging? Whenever we step out of our local boundaries, there is always another “home” waiting to be found. Wherever we are, with just a little bit of effort and imagination, we can make (40) _________ place where we stay “home”.(A)GarlicGarlic, a common seasoning found in many different types of food, has a long medical and mythical history. References to garlic (25)___________(find) in Chinese texts that are dated as far back as 3000 BC. The physician Hippocrates used garlic in ancient Greece (26)_________(treat) infections and physical disorders. In many parts of ancient world, garlic was thought to avoid unfriendly spirits, treat wounds (27)_______ ________ _______ protect against disease.Roman soldiers believed that garlic brought them courage and energy. They took it with them when they went into battle. Egyptians fed garlic to their servants when they built pyramids. They thought that it gave the workers strength. They also believed that garlic had magical and medicinal powers. In the Middle Ages, people thought that garlic prevented the plague(瘟疫).People have praised the virtues of garlic for centuries. Garlic’s popularity began to decline in the early years of the twentieth century, but its reputation (28)_________(restore) in recent years. It is now a valuable cash crop in the state of California. Nearly a half-billion pounds of garlic are produced there each year. The city of Gilroy, California, considers (29)_________ the garlic capital of the world. Each year, the city hosts the Gilroy Garlic Festival in honor of the crop.Some doctors are studying garlic’s effects as a defense (30)_________ some forms of cancer. Others are exploring its possibilities for treating arthritis. Garlic has also received praise for its ability to lower high levels of cholesterol(胆固醇).(31)_________ some of the medicinal benefits of garlic have yet to be proven, it is certain(32)_________ many people enjoy the flavour that it adds to food.(B)The illegal sale and use of drugsDespite the respect of most Americans for law and the determination of the legal system to protect the rights of individuals, the United States, like all other countries, does experience crime. Especially in large cities, the crime rate (33)_______ be high.A high percentage of crime in the United States is directly related to the illegal sale and use of drugs. Drugs are smuggled into the country by (34)________(organize) groups despite intense efforts by the government to stop the illegal drug trade. Drug abuse in the U.S. has come to be regarded as one of (35)________(challenging) social problems facing the nation. The drug issue always excites strong emotions of American (36)_________ drug abuse is regarded as a major threat to American society, particularly to its younger members. Drug abuse is a social problem as it has (37)_________ wide range of social costs. For example, drug is closely related with crime, automobile accidents. Those (38)__________ become addicted to drug use sometimes rob or break into houses or stores to steal money to pay for the drugs. It has serious effects on individuals physically and mentally, (39)_________ the economic losses caused by drug abuse are great.Drug use has caused great concern in the United States. The federal government has worked hard to stop the (40)___________(grow) of drug plants in other countries. It has also set up special agencies, sometimes working with agencies from other nations, to catch the smugglers outside and inside the United States. Teachers and many citizens work together to teach children about the dangers of drug use. Many government agencies in the states and private citizen groups work to help drug addicts give up their drug use and turn to useful lives.听力专题之长对话(17二模:普陀;松江)Questions 17 through 20 are based on the following conversation.17. A. His view on Canadian universities.B. His understanding of higher education.C. His suggestions for improvements in higher education.D. His complaint about inequality in American universities.18. A. It is well designed.B. It is rather inflexible.C. It varies among universities.D. It has undergone great changes.19. A. The United States and Canada can learn from each other.B. Public universities are often superior to private universities.C. Everyone should be given equal access to higher education.D. Private schools work more efficiently than public institutions.20. A. University systems vary from country to country.B. Efficiency is essential to university management.C. It is hard to say which is better, a public university or a private one.D. Many private universities in the US are actually large organizations.松江Questions 17 through 20 are based on the following conversation.17. A. Beautiful scenery in the countryside. B. Cross-country skiing.C. Dangers of winter sports.D. Pain and pleasure in sports.18. A. He can’t find good examples to illustrate his point.B. He can’t find a peaceful place to do the assignment.C. He can’t decide whether to include the effort part of skiing.D. He doesn’t know how to describe the beautiful country scenery.19. A. New ideas come up as you write.B. Much time is spent on collecting data.C. It’s hard to find a proper topic.D. The writer’s point of view often changes.20. A. How to revise a paper in an academic manner.B. How to polish your arguments in a paper.C. How to tell the main ideas in a paper effectively.D. How to decide on relevant content for a paper.Questions 17 to 20 are based on the following conversation.W: Hello,I’m here with Tom. Now Tom, you went to university in Canada?M:Yeah, that's right.W:OK, and you have very strong views about universities in Canada. Could you please explain?M:Well, we don't have private universities in Canada. They're all public. All the universities are owned by n the government, so there is the Ministry of Education in charge of creating the curriculum for the universities and so there is not much room f or flexibility. Since it’s a government operated institution, things don’t move very efficiently.W:Oh, it's really beyond my expectation.M:Yes, however, there are certain advantages of public universities, such as the fees being free. You don’t have to pay for your education. But the system isn't efficient, and it does not work that well.W:Yeah, I can see your point. But in the United States we have many private universities, and I think there are a lot of rules also. Maybe people don't act that much differently, because it's the same thing working for a private university. They get paid for their job. I don't know if they're that much more motivated to help people. Also, we have a problem in the United States that usually only wealthy kids go to the best schools, and it's kind of a problem actually.M:I agree with you. I think it's a problem because you’re not giving equal access to education to everybody. It's not easy, but having only public universities also might not be the best solution. Perhaps we can learn from Japan where they have a system of private and public universities. Now,in Japan, public universities are considered to be the best.W:Right. It's the exact opposite in the United States.M: So, as you see,it’s very hard to say which one is better.W:Right, a good point. .Questions17. What does the woman want Tom to talk about?18. What does the man say about the curriculum in Canadian universities?19. On what point do the speakers agree?20. What conclusion does the man draw at the end of the conversation?Questions 17through 20 are based on the following conversation.M: Hello, Professor Jones.W: Hello, Tony. So what shall we work on today?M: Well, the problem is that this writing assignment isn’t coming out right. What I thought I was writing on was to talk about what a particular sport means to me—one I take part in.W: What sport did you choose?M: I decided to write about cross-country skiing.W: What are you going to say about skiing?M: That’s the problem. I thought I would write about how peaceful it is to be out in the country.W: So why is that a problem?M: As I start describing how quiet it is to be out in the woods, I keep mentioning how much effort it takes to keep going. Cross-country skiing isn’t as easy as some people think. It takes a lot of energy. But that’s not part of my paper, so I guess I should leave it out. But now I don’t know how to explain that feeling of peacefulness without explaining how hard you have to work for it. It all fits together. It’s not like just sitting down somewhere and watching the clouds rolling by. That’s different.W: Then you’ll have to include that in your point. The peacefulness of cross-country skiing is the kind you earn by effort. Why leave that out? Part of your point you knew beforehand, but part you discovered as you wrote. That’s common, right?M: Yeah, I guess so...(Listen again, please)Questions17. What is the topic of the man’s writing assignment?18. What problem does the man have while working on his paper?19. What does the woman say is common in writing papers?20. What is the conversation mainly about?秋季新王牌小班课赵N1 12月9日:高一(学生版)四大模块(词汇;语法专练;听力;写作)11 / 11写作题目:你是张华,你要竞选班长(class president),请写一篇竞选演讲词演讲词中应包括:1. 你为何认为自己可以胜任班长工作?2. 如果当选你将会为本班同学做什么?实战练习To begin with, one of my 1._____ is leadership, which plays a vital role 2._____ managing the whole class. Having had a 3._____ in leading a class, I am sure to lead the class to 4._____. Moreover, a sense of responsibility makes me 5._____ from other candidates. I’ll accomplish most class tasks 6._____with my responsibility. Last but not least, the ability to 7.______ will 8._______ class affairs. Along with such ability, I will be able to 9.______.2. 翻译填空:将括号内的中文翻译成英语,使得句子通顺(1)A._______(我坚信) that I will have the courage to B.______(处理大量工作) and turn our class into a wonderful, friendly and warm unit that is C._______(不亚于任何班级)A. I firmly hold the belief;B. deal with a great amount of work;C. second to none(2)If I am A.____(很幸运地赢得你们的支持) and get the post, I will do my best to B._____(尽好我的义务) and C._______(承担起作为领导者的角色) in our class.A. fortunate/lucky enough to win your support;B. fulfill my obligations;C. assume my role as a leader (3)I will make sure about A.______(自修时间的纪律和安静),providing the class with B.______(一个更好的学习气氛).A. the discipline and quietness of the self-study periods;B. a better studying atmosphere(4)Firstly, I will A.______(用尽任何方法) to build up the bridge between teachers and students in order toB._______(激发学习氛围).A. try every/all means;B. inspire the studying atmosphere3. 英译汉:用恰当的中文表达下列句子的意思(1)I’m sure that under my leadership, you will see a class running in a vigorous and harmonious way.(2)Since I hold several essential qualities equal to this position, I am quite confident that voting for me will be your wise choice.(3)In a word, I will do my best to fulfill the requirements of the position. Please trust me and lend me a hand so that I can serve everybody heart and soul.。
张老师秋季辅导材料八Part1Listening(第一部分听力)Listen to the passage and tell whether the following statements are true or false.1.A new way to spend holidays is travel study.2.When you have a travel study,you only can see many beautiful sights.3.During the study travel,you have to speak English every day and almost everywhere.4.Traveling can help you make a lot of new friends.5.You can read all books of the past during the study travel.6.English-speaking teachers alone can help you improve English.7.You can get a chance to learn how to live by yourself during the travel study.Part2Vocabulary(第二部分词汇)I.根据音标写出单词,词性及中文词义1./'ækjurit/2./ə'meiziŋ/3./'kælkjuleit/4./kə'mju:nikeit/5./kəm'pli:t/6./di'veləp/7./in'vent/8./'liviŋ/9./'ləukəl/10./'nesisəri/11./pə'lait/12./'pauəful/13./sɔ:lt/14./'sə:vis/15./sɔlv/16./'ʃuəli/II.写出所给单词的词性及中文词义1.chain2.charge3.check4.course5.custom6.culture7.especially8.lecture9.lightning10.pack11.program12.response13.snack14.system15.wholeplete the sentences with the given words in their proper forms(用括号中所给单词的适当形式完成下列句子)1.With the(develop)of economy,China is becoming stronger and stronger.2.Who first(invention)the systems of numbers from1to9?3.On the(four)day,the sick boy came to life.4.The computer is such a machine that it can do a within seconds (calculator).5.There’s(little)than ten minutes left.Hurry up.6.It’s(near)eleven clock.You’d better go to bed.7.Scientists from all around the world want to know why all(live)things died at the end of the Cretaceous period(白垩纪).8.Children are not allowed to use some of the(electricity)appliances.9.Please tell Jane that a classmate of is going to visit her.(she)10.The skillful of a computer is hard to learn.(operate)11.The TV news reported the celebration of the old man’s birthday.(hundred)12.Wang Damin enjoys with his big birds.(fish)13.Do you need the of a lawyer?(serve)14.I’ll have two cups of tomato cups for.(start)15.Many after-class activities make our school life much more.(enjoy)plete the following sentences.The first letter has been given.(完成下列句子,首字母已给)1.It is r to see a man over160years old.2.The store sells big ones,small ones,m ones,or what have you.3.Let’s go Dutch.We’ll both pay half of the b.4.The restaurant has a service c of ten per cent.5.The moon sank b the hills.6.She took three c:reading,writing and mathematics.7.There are only a few days1before I’m going to face mid-term examination.8.She is very f of Chinese classical literature and has spent some time reading Tang and Song poetry.Part3Writing(第三部分写作)1.Write a passage of at least60words about“Computer and My Life”.The following questions are for your reference.●What do you usually do on the computer?●Do you think the computer is becoming more and more important in your life?●Why do you think so2.Write at least60words about the topic"My Favorite Dinner Party"(以“我最喜欢的宴会”为题,写一篇不少于60词的短文)Part4Reading(第四部分阅读)1.A.energeticB.endsC.eveningD.lowE.cycleF.highG.fitH.betterI.riseDo you find getting up in the morning so difficult that it’s painful?This might be called laziness,but Dr. Kleitman has a new explanation.He has proved that everyone has a daily energy1During the hours when you labor through your work,you may say that you’re“hot”.That’s true.The time of day when you feel most2is when your cycle of body temperature is at its peak.For some people the peak comes during the forenoon.For others it comes in the afternoon or evening.No one has discovered why this is so,but it leads to such familiar monologues as,“Get up,John!You’ll be late for work again!”The possible explanation to the trouble is that John is at his temperature-and-energy peak in the3Much family quarrelling4when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can’t change your energy cycle,but you can learn to make your life5it better.Habit can help, Dr.Kleitman believes.Maybe you’re sleepy in the evening but feel you must stay up late anyway.Counteract(对抗)your cycle to some extent by habitually staying up later than you want to.If your energy is6in the morning but you have an important job to do early in the day,7before your usual hour.This won’t change your cycle,but you’ll get up steam and work8at your low point.Get off to a slow start which saves your energy.Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor.Avoid the troublesome search for clean clothes by laying them out the night before.Whenever possible,do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.2.Once,there was an old granny who was living alone in the mountains.She never felt lonely because she would go to the forests to see1there were any wounded animals every day.One day,she found a big tiger2on the ground shedding a lot of blood.The old granny thought:“I should do something quickly to rescue it.”So she went home to fetch medicine3Although the tiger was fatally wounded,after the careful treatment,the tiger recovered soon.The tiger decided to find a chance torepay the old lady4her kindness.One night,it had a heavy rain.The tiger came to the granny’s house5to hint(示意)with his head to ask the old granny to ride on his back.After that,the tiger ran away with the granny on his back.The old lady queered:“What is the matter?”But when she looked back,she found her house had collapsed6the erosion of the rain.She knew the tiger had come to rescue her.Later,the tiger asked many animals who had been treated by the old granny to build a big,solid house by a river.The old granny continued to rescue the wounded animals,and many animals had become her assistants.1.A.where B.why C.if D.asying B.lying C.dying D.waiting3.A.for the first time B.for the time being C.now and then D.in a hurry4.A.like B.with C.for D.from5.A.slowly B.suddenly C.frighteningly D.excitedly6.A.based on B.because of e to an end D.consist of3.The Japanese pay much attention to the lucky meanings of telephone numbers.The bathhouses,for example, like to use4626,because when read1Japanese,it has the same pronunciation as“having a good bath”.Both the clothes shops and the butcher’s like4129better than any other numbers because this number can 2be read as“good meat”or“nice clothes”.Since these numbers are3with something nice,people can remember them very easily.So they have become advertisements for the shops.4,there are also telephone numbers which are regarded as forbidden by the Japanese people.1564,for example,has the sound of“kill people”while the number4219has the5of“people die”.At present,there are about44million telephones in Japan,yet it is almost6for everyone to get a lucky number.So these numbers have become valuable and can be sold as goods.The price can reach as high as 222thousand Japanese yen.1.A.with B.about C.in D.along2.A.not B.never C.either D.even3.A.dealt B.designed C.connected D.consisted4.A.On one hand B.On the other handC.In my opinionD.In short5.A.voice B.sound C.noise D.ring6.A.possible B.changeable C.responsible D.impossible4.In almost all western restaurants you must find1table.Do not sit at a table where other people are already sitting.2there are no empty tables,wait in the area provided.It is not polite to stand behind people who are eating while you wait for them to finish.Sometimes you3wait a short time in the lobby when you first arrive,before a table is4The waiter will ask you if you prefer to sit in an area where smoking is allowed(允许)or not.Many public places in the West forbid(禁止)smoking altogether,others allow it only in one area.When you invite foreigners to dinner,always remember that foreigners do not eat the viscera(内脏),heads and feet of pigs or chickens.Usually the waitress will5the bill when you finish,but if you want to have it quickly,do not6 or you can call softly,Miss or Sir.You can put up your hand.If one person invites the others to a restaurant,he or she will pay.Otherwise people usually divide the cost.1.A.empty B.a empty C.the empty D.an empty2.A.Since B.If C.Why D.Though3.A.have to B.can C.may D.must4.A.clean B.dirty C.busy D.free5.A.take B.bring C.carry D.put6.A.speak B.cry C.shout D.call5.We all have three people within us.One of them is a parent,the other is an adult and the third is a child.The parent:when the parent in our head controls us we c1people,we tell them how to behave as our parents told us to behave.The good side of the parent is caring for people and passing on the traditions ofs2The bad sideof the parent is giving more importance to traditions and rules than to the needs of the individual.The adult:the adult in our head looks carefully at information and tries to think of sensible ideas.Our adult is open-minded to new situations and to o3people and their feelings and opinions.The good side of the adult is thoughtfulness and openness to new ideas.The bad side of the adult is not making d4quickly and not giving importance to enjoyment,etc.The child:everybody has a child within them.The child in e5person is perhaps more important than the parent and the adult!The child gives us joy,openness,i6and activity,just like a child in a family.Unfortunately the child inside us is often not healthy and we are“childish,and silly and not“child-like”and joyful,open and creative.The good side of the child is joy,excitement,openness to new e7and creative energy.The bad side of the child is being silly,selfish,spoilt and conceited(自负的).It is important that there is a balance of the good aspects of the parent,the adult and the child within us.In this way we can be caring,thoughtful and joyous.6.Mind Those Manners on the SubwaySo,there you are,just sitting there in the subway car,enjoying the book you just bought.Suddenly,you feel someone leaning over your shoulder reading along with you.Or,the person sitting next to you takes out a nail clipper(指甲刀)and begins cutting his or her nails.Annoying?Many of us have to spend some time every day on public transportation.We all know that some behaviors are s1unacceptable.So,to make the trip more pleasant,we suggest the following:Let passengers get off the bus or subway car before you can get on.Getting off and on in an orderlym2can save time for all.S3away from the doors when they are closing.Don’t talk loudly on a bus or subway.Chatting loudly with your friends can be annoying to o4Don’t shout into your mobile phone on a bus or subway.Don’t think your bags and suitcases(手提箱)deserve a seat of their e a tissue whenever you cough or sneeze(打喷嚏).An uncovered sneeze can s6germs(细菌),especially in crowded places.Don’t cut your nails or pick your nose on public transportation.Don’t read over other people’s shoulder.Many people do this on subways,but it’s r7annoying.It can make people uncomfortable.They might think you’re too stingy(小气的)even to buy a newspaper.Or theymight think you’re judging their behavior.7.John Chapman was born in Massachusetts about1774.He grew up to be a gardener.He planted apple trees in New York and Pennsylvania.In the e11800s,he carried apple seeds west.He walked the wilderness that would later become Michigan,Ohio,Indiana,and Illinois.When he found a good place for apple trees,he cleared the brush.He planted the seeds in rows.Then he fenced them in.At first he went back e2for more ter he got seeds from the t3he grew.He roamed through the wilderness,tending to his orchards.He traveled on f4often without shoes.He carried with him a cooking pot.When the first settlers came,Chapman sold his trees for pennies.Sometimes he traded them for used clothes. The settlers called him Johnny Appleseed.Those who moved on west told of the man who sold them the trees. The tale p5down through the generations.More tales were a6to the legend.In one tale, Johnny Appleseed slept through a storm with a bear.In another,a rattlesnake(响尾蛇)tried to bite his foot,but his skin was too tough.In books,he might be shown in clothes that are too big,wearing his pot as a hat.Some of the trees he planted still b7fruit today.。
杨浦新王牌英语练习I.Multiple Choice (24 points)1. Have you ever asked him the reason _______ may explain his absence?A. whyB. whenC. thatD. what2. He made another wonderful discovery, _______ of great importance to science and man.A. which I think isB. which I think it isC. which I think itD. I think which is3. He was educated at the local high school, _______ he went on to Beijing University.A. after whichB. after thatC. in whichD. in that4. Gone are the days _______ the working people suffered from cold and hunger.A. on thatB. at whichC. whenD. with which5. What has made Vietnam _______ it is today?A. thatB. forC. whichD. what6. One of the men held the view _______ the book said was right.A. that whatB. what thatC. thatD. whether7. Many young people in the West are expected to leave _______ could be life's mostimportant decision-marriage-almost entirely up to luck.A. asB. thatC. whichD. what8. _______ matters most in learning English is enough practice.A. WhatB. WhyC. WhereD. Which9. I was surprised by her words, which made me recognize _______ silly mistakes I hadmade.A. whatB. thatC. howD. which10. Peter was so excited _______ he received an invitation from his friend to visit Chongqing.A. whereB. thatC. whyD. when11. The cost of living in Glasgow is among the lowest in Britain, _______ the quality of life isprobably one of the highest.A. sinceB. whenC. asD. while12. _______ little time left, you'd better walk as fast as possible.A. BeingB. There beingC. It havingD. Since there has13. That is the only way we can imagine _______ the overuse of water in students' bathrooms.A. reducingB. to reduceC. reducedD. reduce14. I don't think it much good _______ him of the matter.A. informingB. to informC. to be informedD. being informed15. Can you imagine yourself _______ on a lonely island for three years?A. stayingB. stayC. have stayedD. being stayed16. Generally speaking, the _______ are respected by the common people.A. learnedB. learningC. learnD. being learnt17. So many problems _______, I'm in a tight corner.A. settledB. remained to settleC. being settledD. remaining to be settled18. The flowers _______ so sweet in the botanic garden attract the visitors to beauty of nature.A. to smellB. smellingC. smellD. to be smell19. He sent an e-mail, _______ to get further information.A. hopedB. hopingC. to hopeD. hope20. _______ blood if you can and many lives will be saved.A. GivingB. GiveC. GivenD. To give21. The long-lasting war, filled with blood and deaths, ended in people's sadness, ___ no result.A. reachedB. to reachC. would reachD. reaching22. Time should be made good use _______ our lessons well.A. of learningB. to learnC. to learningD. of to learn23 The traffic rule says young children under the age of four and _______ less than 40 poundsmust be in a child safety seat.A. being weighedB. to weighC. weighedD. weighing24. _______ from endless homework on weekends, the students now find their own activities,such as taking a ride together to watch the sunrise.A. FreedB. FreeingC. To freeD. Having freedII.Grammar (16 points)(A)“Courage is when you're afraid, but you keep on moving anyway. Courage is when you're in pain, but you keep on living anyway. Courage is when you've lost your way, but you find your strength anyway ...” This song, “Courage”, by the singer Orianthi, is one of the songs that I listen to 25 I feel depressed.Courage is one thing I wish I could possess when I want to stand up and speak my mind. There are times when I find myself afraid to speak up for 26 . There are times when I give up so easily just because I'm afraid to fail. The absence of courage is a serious problem for me.Since noticing this problem, I 27 (try) some ways to make some changes. First, I talk to my friends about my feelings more often, and we discuss my dream about 28 I want and where I want to go in the future. To be honest, my heart still pounds so hard every time before I go on the stage 29 I have to take deep breaths so many times, but I'm getting better at it.Finally, I wish I could succeed in having the courage to speak out loud about my future dream and in having the courage to tell myself to keep moving 30 the fear for failure.“It's not how many times you 31 (knock) down; it's how many times you get backup…”(B)Americans and Arabs are different 33 it comes to their space habits. Arabs would rather have close contact. Dr. Hall has explained that 34 (belong) to a touch culture and in conversation, the Arabs always envelop the other person. They hold his hand, look into his eyes, and bathe him in their breath.Dr. Hall's interest in man's use of space developed in the early nineteen fifties when he was Director of the Point Four training programme at the Foreign Service Institute. In talking with Americans who had lived overseas, he found that many of 35 had been highly uncomfortable 36 of culture difference. Such discomfort is usually referred to as culture shock.The problem is that, relatively speaking, Americans live in 37 noncontact culture. Partly, this is a product of our puritan heritage(清教徒文化遗产). Dr. Hall points out that we spend years 38 (teach) our children not to crowd in and lean on us. And in situations 39 we ourselves are forced to stand close to another person on crowded subways, for example, we turn our eyes away, and if actual body contact 40 (involve), tense the muscles on the contact side. Most of us feel very strongly that this is the only proper way to behave.There are many fossil fuel alternatives on the market and some yet 41 , but there are things to be considered with all of them. One such fuel is called bio-diesel(生物柴油) that is 42 available on the market and is under 43 examinations on whether it is a better alternative than petroleum. As far as the other earth friendly choices go about, bio-diesel seems like a more earth friendly choice. But, understanding the difference between bio-diesel and petroleum or 44 diesel is essential. We're going to take some time to cover both of these options.Bio-diesel is an earth friendly option because it comes from many of the natural sources of the earth. But, regular diesel is obtained from oil that is 45 up from the ground. Bio-diesel comes from the oils in animal fat and various vegetable oils. The biggest advantage that bio-diesel currently has is that the basic 46 for using this type of fuel option is already here. Bio-diesel can run in regular diesel engines. With this great 47 you can recycle animal fat and the vegetable oil that is used to make your fries at McDonald's instead of just throwing it back into the ground. It will save you money and 48 things that are normally thrown out.More and more people across the country are speaking out about the advantages ofbio-diesel. Many urban areas now have their public 49 using the new bio-diesel fuel for buses and taxies. Many trains that are being used by Amtrak are now using bio-diesel. All these little factors help reduces the need and 50 on foreign oil to run your transportation needs.IV.Cloze (15 points)Targeted college campus violence, from serious attacks to the mass shootings at Virginia Tech in 2007, is up sharply over the last two decades. The number of cases 51 from 40 during the 1980s to 79 in the 1990s and 83 since 2000, says a study 52 Friday by the FBI, Secret Service and Education Department. Violence on or near college campuses is 53 new. The report cited, 54 , a murder-suicide in 1909.Targeted violence is defined as cases where attackers select a victim in advance or 55 choose victims because they fit some predetermined description or relationship. It 56 violence that breaks out instinctively, such as during an argument.The study found that:✧Factors relating to a close relationship were a motivating or triggering factor in a thirdof attacks and academic 57 or failure was a factor in one out of 10 attacks.✧Sixty percent of those who engaged in targeted campus violence were 58 orformer students at the school where the violence took place.✧Firearms were used in more than half the incidents and knives or weapons with acutting edge were used in over 20 percent.✧Over 90 percent of those who 59 such attacks were male.In nearly three-quarters of the incidents studied, the attacker appeared to have 60 one or more specifically named individuals. But sometimes it appeared that random people were targeted along with 61 victims.Understanding what motivates an attacker to go solely after random victims "remains a complex and difficult 62 ," the report said.The report is an initial step in gaining a better 63 of targeted campus violence. The research is expected to help threat assessment teams 64 professionals from a wide range of campus departments. The teams created in the aftereffect of the Virginia Tech killings identify individuals whose behaviour causes 65 or is disruptive and assess whether the person has the intent or ability to carry out an attack.51. A. rose B. raised C. arose D. maintained52. A. suggested B. revealed C. issued D. conducted53. A. hardly B. completely C. simply D. narrowly54. A. as a whole B. for example C. in particular D. in fact55. A. carefully B. freely C. purposefully D. randomly56. A. involves B. excludes C. includes D. contains57. A. success B. knowledge C. stress D. performance58. A. current B. past C. recent D. future59. A. carried B. witnessed C. experienced D. committed60. A. aimed B. targeted C. meant D. intended61. A. concrete B. general C. specific D. special62. A. worry B. decision C. conclusion D. challenge63. A. glimpse B. command C. assessment D. understanding64. A. made up of B. made up C. made off D. made for65. A. attention B. concern C. trouble D. riskV.Reading Comprehension (24 points)(A)My true life started when I carefully pinned Qinghua University's school motto “self-discipline and social commitment” above my bed, adopting it as my personal motto. I am a countryman; I am a worker; I am a teacher; I am a unique form of Qinghua student. But focusing on the man that I am is not as important as seizing my fate and becoming the man I will be. However, with my life as it is, this isn't easy, so I must struggle. --- Zhang Liyong Once published, Zhang Liyong's book “The Cook with Fluent English” immediately caught the public's eye. Telling the true experiences of a common man, this book has encouraged and stimulated many English-learners.Born the eldest son of a poor family in Jiangxi Province, Zhang quit school early in order to help out his family. His first job was a worker in a toy factory in Guangzhou, where his experiences made him see the English language in a new light. He found out how important English was in communicating with foreigners. Always under an intense workload, and with poor housing conditions, he felt no sense of belonging during those days in Guangzhou. So, with the realization that learning English was the only way to better him lot in life, and a ticket to step onto the campus of Qinghua University as well. He began to pursue the life he wanted. It was this move to become a student again that surrounded Zhang with the environment necessary for his success in English.After reading “The Cook with Fluent English”, Daisy Dai, whose major is English language and literature, comments, “First of all, I think his university was quite helpful for him to study English, because there are a lot of resources available on campus. Also, I believe that his passion for studying English should be encouraged. Because he was working full-time as a cook, he must have studied English in his spare time. Now that time for intensive study, like in schools or in universities is quite limited, we all have to form the habit of teaching ourselves. I think we should learn by his example.”66. In his book Zhang Liyong stated that .A. Qinghua University is the best place for English studiesB. seizing his future is more importantD. he must struggle to be a wealthy man67. During the days in Guangzhou, Zhang .A. quit school to help out his familyB. started to learn English by himselfC. began to realize the importance of EnglishD. showed great interest in communicating with foreigners69.Which of the following is NOT mentioned by Daisy Dai as the reasons why Zhang succeedsin studying English?A. He has developed the habit of self-study.B. He is passionate for studying English.C. He is talented in studying English.D. He made full use of campus resources.70.The underlined word “intense” (paragraph 3) refers to "".A. involving extreme effortsB. concerning great detailsC. long-lastingD. giving strength to(B)Some people who find themselves unable to solve a problem react by just giving up. But it is not good to escape from problems for failures. You may be sure that all young people go through the same difficult process that you are going through: meeting new situations, developing new skills, and testing their abilities. If you are unhappy about something, face it. Try to state the problem in a few words, so that you will know exactly what you are up against. The n see if you can “put your finger” on the cause of your unhappiness.In many cases, we only “think” there is no solution to a particular problem. But often we can overcome the problem and achieve the goal by making a direct attackFor example, a boy wanted to be a debater. When he tried out for the debating team as a freshman, the coach thought he was hopeless. He was shy; he had a high-pitched voice; and his posture was poor. Although he was given little hope of success, he took advantage of every opportunity to debate. He studied successful speakers and sized up his own weaknesses and assets. Then he spent many hours learning all the facts on the topics for debate, and worked at developing good posture and at debating team, and in his senior year he was on the winning team in his state. He achieved his goal because he had made a direct attack upon his problem.Although direct attack is often the best way to meet problems, we have to be realistic in judging situations. Sometimes it is necessary to change either the tactics or the goal.A boy who wants to be a great football player may be too light and not quite fast enough for football. In this situation, becoming a great football player may be an unreasonable goal for him. However, he may become outstanding in tennis or golf, and satisfy his desire to take part in sports.A girl who has plain features may decide that she cannot win popularity with her face, and so she may try to develop an interesting personality, which eventually will get her much further. In this situation, she must change her method of achieving her goal.So, although direct attack is often the best way to handle problems, it is important to study the situation and make a wise decision about what to do.71. If you are unhappy about something, the author thinks .A. you should give it upB. you should escape from itC. you should face itD. you should make excuses72. In the third paragraph, we can learn that the boy achieved his goal because .A. he made a direct attack upon his problem.B. he was shy.C. he had a high-pitched voice.D. his posture was poor.73. A girl who has plain features wants to win popularity. She should .A. become outstanding in golfB. depend on her faceC.try to develop an interesting personalityD. become outstanding in tennis74. Which of the following can be inferred from the passage?A. Those who escape from problems will never succeed.B. The best way to deal with problems is to attack directly.C. There is always a solution to the problem you meet with.D. It is necessary to change our goals sometimes to succeed.VI.Translation (11 points)79. 无视规则是不划算的,因为你可能找不到合作伙伴。
主要内容:摸底衔接(1课时)集合与命题(4课时),不等式(6课时),测试讲评(1课时)第1讲:初高中衔接(高中入学测试)
第2讲:集合及其子集
第3讲:集合的运算1(交集和并集)
第4讲:集合的运算2(补集以及含参数集合运算与讨论)
第5讲:命题与充要条件
第6讲:不等式的基本性质及一元二次不等式的解法
第7讲:含参数的一元二次不等式及其讨论
第8讲:分式不等式及高次不等式的解法
第9讲:绝对值不等式及简单无理不等式的解法
第10讲:基本不等式
第11讲:不等式练习讲评
第12讲:综合测试
主要内容:数列(8课时),向量(4课时),矩阵和行列式初步(3课时),复数(3课时),总复习测验(2课时)
第1讲:数列的函数性研究
第2讲:等差数列
第3讲:等比数列
第4讲:求数列通项的基本方法
第5讲:数列求和的基本方法
第6讲:数列的极限
第7讲:无穷等比数列各项的和及应用
第8讲:数列精选精讲
第9讲:数列精讲精练二
第10讲:向量的坐标表示及运算
第11讲:向量的数量积、数量积的应用
第12讲:平面向量的分解定理以及向量应用
第13讲:向量精选精练
第14讲:矩阵的概念以及运算、二阶行列式
第15讲:三阶行列式
第16讲:复数的概念、复数的运算
第17讲:复数的坐标形式、复平面
第18讲:在复数范围内解方程
第19讲:综合练习一(结合高考真题,复习暑假所学高二内容)
第20讲:综合练习二(结合高考真题,复习高一内容)。
高三秋季班Part 1 . Extensive ReadingThe TrashmanSaturday, April 7Steve and I hauled trash for four solid hours continuously, except for about five minutes when we stopped to talk. My shoulder hurt wickedly each time I put another full barrel on it, and my legs occasionally trembled as I was heading to the street, but the rest of me said, "Go, trashman, go."I could not have imagined there would be joy in this. Dump. Lift. Walk. Lift. Walk. The hours flew by.Saturday meant most adults were at home on the route. So were school-age children. I thought this might mean more exchanges as I made the rounds today. Many people were outdoors working in their gardens or greenhouses. Most looked approachable enough. There wasn't time for lengthy talks but enough to exchange greetings that go with civilized ways.I was shocked to find that this wasn't the case.I said hello in quite a few yards before the message registered that this wasn't normally done. Occasionally, I got a direct reply from someone who looked me in the eye, smiled, and asked, "How are you?" or "Isn't this a nice day?" I felt human then. But most often the response was either nothing at all, or a surprised stare because I had spoken.One woman in a housecoat was startled as I came around the corner of her house. At the sound of my greeting, she gathered her housecoat tightly about her and retreated quickly indoors.I heard the lock click. Another woman had a huge, peculiar animal in her yard. I asked what it was. She stared at me. I thought she was deaf and spoke louder. She seemed frightened as she turned coldly away.Steve raged spontaneously about these things on the long ride to the dump."The way most people look at you, you'd think a trashman was a monster. Say 'hello' and they stare at you in surprise. They don't realize we're human."One lady put ashes in her trashcan. I said we couldn't take them. She said, 'Who are you to say what goes? You're nothing but a trashman.' I told her, 'Listen, lady, I've got an IQ of 137, and I graduated near the top of my high school class. I do this for the money, not because it's the only work I can do.'"I want to tell them, 'Look, I am as clean as you are,' but it wouldn't help. I don't tell anyone I'm a garbageman. I say I'm a truck driver. My family knows, but my wife's folks don't. If someone comes right out and asks, 'Do you drive for a garbage company?' I say yes. I believe we're doing a service people need, like being a police officer or a fire fighter. I'm not ashamed of it, but I don't go around boasting about it either."A friend of my wife yelled at her kids one day when they ran out to meet a trash truck. 'Stay away from those trashmen. They're dirty.' I was angry with her. 'They're as good as we are,' I told her. 'You seem to have a lot of sympathy for them,' she said'Yes, I do.' But I never told her why."I had originally planned to stay at this employment for only two days but now I'm going to continue. The exercise is great; the lifting gets easier with every load, even if my shoulder muscles are sore. I become faster and neater each day. I'm outdoors in clean air. And, contrary towhat people think, I don't get dirty on the job.I have decided, too, to keep saying hello in people's yards. It doesn't do any harm, and it still feels right. Frankly, I'm proud. I'm doing an essential task. I left this country a little cleaner than I found it this morning. Not many people can say that each night.John Gardner wrote that a society, which praises its philosophers and looks down on its plumbers, is in for trouble. "Neither its pipes nor its theories will hold water," he warns. He might have gone a step further and called for respect for both our economists and our trashmen; otherwise, they'll both leave garbage behind.New wordstrashman n. 垃圾清理工haul vt.拖,拉,拖运trash n.垃圾,废物continuous a.连续的,不断的continuously ad.连续地,不断地wicked a.极坏的,邪恶的wickedly ad.非常地barrel n.桶tremble vi.颤抖,发抖dump vt./ n.倾倒,抛弃;垃圾场route n.路线outdoor a.户外的outdoors ad.在户外,在野外greenhouse n.温室lengthy a.冗长的,过长的civilize vt.使有教养,使文明civilized a.文明的,有礼的register v.意识到,注意到,登记,注册retreat vi./ n.后退,撤离;后退,撤离indoors ad.在室内peculiar a.奇怪的,稀罕的,独特的rage v./ n.大怒,吼叫;大怒,发火spontaneous a.自发的,即时的spontaneously ad.自发地monster n.怪物,妖怪graduate vi./ n.毕业;毕业生garbageman n.垃圾工folk n./ a.家人,人们;民间的,民俗的boast v.夸口,吹嘘yell v.大叫,大喊original a.原先的,最初的,新颖的,与众不同的originally ad.原先,原来employment n.职业,工作,就业muscle n.肌肉sore a.疼痛的contrary a.相反的harm n./ vt.伤害,损害;~,~frank a.坦诚的,直率的frankly ad.坦率地(说)philosopher n.哲学家plumber n.管道工theory n.理论economist n.经济学家❀❀❀❀❀❀❀❀❀❀head to 去,去往make the rounds 逐一巡查,访问go with 与……相配look sb in the eye(s) 坦然正视某人nothing but 只是be / feel ashamed of 为……感到羞耻,为……感到惭愧boast about / of 吹嘘stay away from 避开contrary to 与……相反look down on / upon 蔑视,看不起be in for 将遭遇hold water 经得起考验,可靠Part 2 Grammar —名词性从句(1) 主语从句如果一个句子在复合句中充当一个主语, 那么这个句子就是主语从句。
高二英语I Section A(A)On June 17, 1774, the officials from Maryland and Virginia held a talk with the Indians of the Six Nations. The Indians (1) (invite) to send boys to William and Mary College. In a letter the next day they refused the offer as follows:We know that you have a high opinion of the kind of learning taught in your colleges, and that the costs of living of our young men, while with you, would be very expensive to you. We are convinced that you mean (2) (do) us good by your proposal; and we thank you heartily. But you must know that different nations have different ways of (3) (look) at things, and you will therefore not be offended if our ideas of this kind of education happen not to be the same as (4) . We have had some experience of it. Several of our young people were formerly brought up at the college of the northern provinces: they were taught all your sciences; but (5) they came back to us, they were bad manners, ignorant (6)every means of living in the woods --- they were totally good for nothing.We are, however, not the less obliged by your kind offer, (7) we refuse to accept it; and, to show our grateful sense of it, if the gentlemen of Virginia will send us a dozen of their sons, we will take care of their education, (8) (teach) them all we know, and making men of them.(B)What makes one person more intelligent than another? What makes one person a genius, like the brilliant Albert Einstein, and another person a fool? Are people born intelligent or stupid, or is intelligence the result of where and (9) you live? These are very old questions and the answers to them are still not clear.We know, however, that just being born with (10) good mind is not enough. In some ways, the mind is like a leg or an arm muscle, (11) needs exercise. Mental (done with the mind) exercise is particularly important for young children. Many child psychologists(心理学家) think that parents (12) play with their children more often and give them problems to think about. The children are then more likely to grow up bright and intelligent. On the other hand, if (13) (leave) alone a great deal with nothing to do, children are more likely to become dull and unintelligent.Parents should also be careful with what they say to young children. According to some psychologists, (14) parents are always telling a child that he or she is a fool or an idiot, then the child is more likely to keep doing silly and foolish things. So it is probably(15) (good) for parents to say very positive things to their children, such as "That was a very clever thing you (16) (do)." or "You are such a smart child."Section BFilmgoers should be told how many calories there are in the popcorn, ice cream and soft drinks that they buy in cinemas, according to the Food Standard Agency. Smaller popcorn buckets and drink cups should also be made__25__, the nutrition inspector said. Tim Smith, chief executive of the agency, said that cinemas should help to deal with the country's overweight__26__. "There is a misbelief that popcorn is calorie-free, but that is not the case. It is a __27__to us," he said. "Portion sizes are also a big issue, and there seems to be increasingly big packs on sale." He spoke as a number of food chains such as Pret Manger, Wimpey and The Real Greek __28__to put calorie counts on all their menus. A trial scheme(试行方案)with 21 food companies took place last summer,and __29__are that consumers ___30____ their buying habits when they realized the number of calories in a product. A consultation(征询意见) on the trial ends next month but Mr. Smith is already planning the second drive for American-style calorie counts and is__31__to win support from cinemas and other entertainment places, from football grounds to concert halls. Government__32__suggest that two thirds of adults and a third of children are overweight. If trends are not__33__, this could rise to almost nine in ten adults and two thirds of children by 2050, putting them at__34__risk of heart disease, cancer and other diseases.II. Reading ComprehensionSection APsychologists in Britain have said that the last full week of January is the most depressing time of the year, and labeled next Monday …Blue Monday‟.Mondays are __35__ seen as the worst day of the week because people feel bad-tempered and tired at having to go back to work after a weekend with a different __36__.There are various reasons why more people feel depressed at this time of the year. Many people have __37__ credit card bills for the Christmas presents they bought, and pay day is often not until the end of the month.As the party season is over, people feel __38__ because they have to go back to real life and they may be unhappy with their body __39__ after having too much wine, ice-cream, and other food at Christmas-time.Peop le may have already failed in their New Year‟s resolutions, __40__ giving up smoking. The bad weather in January can also __41__ people feeling fed up.Some companies are taking this quite seriously and offering counseling (咨询)for any staff who are feeling depressed. They hope that helping people as soon as there are __42__ of depression will avoid frequent absence from work.__43__, it‟s not all bad! Many people feel optimistic at this time, that things can only get __44__. Psychologists offer suggestions of how to avoid feeling blue. These include spending 15 minutes doing a “gratitude exercise” thinking about and writing down what you are __45__ for, such as health, family, friends and so on.__46__ a new hobby, doing some exercise, going to bed earlier, eating a healthy breakfast, and listening to some uplifting music, are all __47__as ways to feel more cheerful.To avoid feeling blue next January, experts say that the best thing to do is to __48__ better next December. Spend less on presents, eat and drink less over the festive period, and make more __49__ New Year‟s resolutions.35. A. regularly B. generally C. continuously D. obviously36. A. sleep pattern B. hair style C. working time D. food supply37. A. undeveloped B. unpaid C. unguarded D. untouched38. A. complicated B. stressed C. excited D. ashamed39. A. temperature B. language C. health D. image40. A. instead of B. for example C. such as D. including41. A. result from B. lead in C. devote to D. contribute to42. A. suggestions B. signals C. signs D. symbols43. A. Therefore B. Otherwise C. Moreover D. However44. A. worse B. better C. more good D. more harm45. A. responsible B. critical C. grateful D. enthusiastic46. A. Taking up B. Getting over C. Adding to D. Making up47. A. recommended B. substituted C. involved D. explained48. A. plan B. predict C. broadcast D. bargain49. A. ambitious B. incredible C. ridiculous D. realisticSection B(A)Exploit your parking spaceAn unused parking space or garage can make money. If you live near a city center or an airport, you could make anything up to £200 or £300 a week. Put an advertisement for free on Letpark or Atmyhousepark.Rent a roomSpare room? Not only will a lodger(房客)earn you an income, but also, thanks to the government-backed "rent a room" program, you won't have to pay any tax on the first £4500 you make per year. Try advertising your room on Roomspare or Roommateeasy.Make money during special eventsDon't want a full-time lodger? Then rent on a short-term basis. If you live in the capital, renting a room out during the Olympics or other big events could bring in money, Grashpadder can advertise your space.Live on setRenting your home out as a "film set" could earn you hundreds of pounds a day, depending on the film production company and how long your home is needed. A quick search on the Internet will bring up dozens of online companies that allow you to register your home for free—but you will be charged if your home gets picked.Use your roofYou need the right kind of roof, but some energy companies pay the cost of fixing solar equipment(around £14,000), and let you use the energy produced for nothing. In return, they get paid for unused energy fed back into the National Grid. However, you have to sign a 25-year agreement with the supplier, which could prevent you from changing the roof.50. If you earn £5000 from renting a room in one year, the tax you need to pay will be based on ______.A. £800B. £500C. £4500D.500051. If you want to use energy free, you have to_________.A. sign an agreement with the governmentB. pay around£14,000 for the equipmentC. sell the roof to some energy companiesD. keep the roof unchanged for within 25 years52. For whom was the text most probably written?A. Lodgers.B. Advertisers.C. House owners.D. Online companies(B)Endangered species are plants and animals that are in immediate danger of extinction. Extinction is actually a normal process in the course of evolution. Since the formation of the earth, many more species have become extinct than those exist today. These species slowly disappeared because of change of climate and their failure to adapt to such conditions as competition and predation. Since the 1600s, however, the process of extinction has greatly accelerated as a result of both human population growth and technological encroachment on natural ecology systems. Today the majority of the world‟s environments are changing faster than th e ability of most species to adapt to such changes through natural selection.Species become extinct or endangered for number of reasons, but the primary cause is the destruction of natural habitats. Drainage of wetlands, cutting and clearing of forests, growth of cities, and highway and dam construction have seriously reduced available natural habitats. As the various surroundings become fragments, the remaining animal population crowd into smaller areas, causing further destruction of natural surroundings. Species in these small “islands” lose contact with other populations of their extinction.Some private and government efforts have been organized to save declining species. Laws were made in some countries in the early 1900s to protect wild animals from commercial trade and killing. International endeavors are shown in the convention on International Trade in Endangered Species, approved by 51 nations. Its purpose is to restrict exploitation of wild animals and plants by regulating and restricting trade in certain species. How effective such laws will be in various countries, however, depends on enforcement and support by the people and the courts. Because of lack of law enforcement, the willingness of some segments of society to trade in endangered species, the activities of people who catch and kill animals illegally and dealers who supply the trade, the future of many species is in doubt in spite of legal protection.53.According to the passage, which of the following is the most important factor causing the rapid extinction ofmany species since the 17th century?A. Human beings are not aware of the importance of preserving endangered species.B. Some endangered species have already reached the end of their life span in evolution.C. The development of human society has greatly affected natural ecology systems.D. The world‟s climate has changed greatly that most species cannot survive.54.This passage mentions all of the following causes for the extinction of many species EXCEPTA. natural selection of species.B. various natural disasters.C. commercial trade and killingD. destruction of natural surroundings.55.According to the passage, which of the following is most important in saving declining species?A. governments should make some laws to protect endangered species.B. People should pay more attention to the protection of natural surroundings.C. Relevant law must be made and enforced with the support of the people.D. Some organizations should warn people not to trade in endangered animals.Section CWhile I do think that being a giving person is one of the ultimate acts of being a loving person, I came to realize that I must give to and love myself first and foremost.Here's why:62._____________________________________. And when you are not meeting your needs, and you don't take care of yourself (emotionally, physically, mentally, spiritually), you can't be the best version of yourself to the special people in your life. So in essence, you don't love them at your full potential!Here are some things to consider--Are you physically taking care of yourself? Do you nourish yourself with the right foods, get enough sleep, exercise, are at a healthy weight, and on top of your check-ups? If not, I bet your energy is low, you're tired and stressed, and your confidence isn't the highest (because you probably don't feel your best).63.__________________________________________.Are you emotionally and mentally healthy? 64.__________________________________________. But in general, assess where you stand emotionally. If it's in a healthy place and you can manage your emotions in a healthy way — great! But if you self-soothe in destructive ways and have a negative attitude and energy about you, realize that it's not just affecting you, but others too. When you aren't an emotionally and mentally healthy person, that energy pours into everything you do, and everyone you're around will feel the effects, too.How's your spirituality? In this sense, spirituality is about having an ultimate purpose and being in tune with your true self. Do you wake up every day excited for what your life is about, and have gratitude for all the abundance you already have? If not, you may not be listening and living to what your heart truly desires. Living this way long term, may affect the essence of your inner being and, in turn, may not allow you to show up yourvery best for the world.Be kind to yourself. It can be difficult to put your health and well-being first when life is demanding between your career, family, friendships, relationships, and so on. 65. _________________________________________. Take a baby step towards this. Perhaps try getting an hour more of sleep. Move your body in a way that feels good. Take time for yourself to be with your thoughts and without distractions and feel that peace.A. As humans, we're so complex and having ups and downs is normal.B. I used to believe that love meant putting everyone else and their needs first, before my own.C. Now think about how much more you could give to others when you aren't exhausted, you're happy with what you see in the mirror, and you aren't on edge with stress.D. When you put everyone and everything else above you, you are no longer valuing yourself and your needs. AB. If you can think of any ways to improve your well-being and love yourself more, start today!III .Translation66. 毫无疑问,那位演讲者值得在场所有人的赞美。
一、复习引入:数的概念是从实践中产生和发展起来的.早在人类社会初期,人们在狩猎、采集果实等劳动中,由于计数的需要,就产生了1,2,3,4等数以及表示“没有”的数0.自然数的全体构成自然数集N随着生产和科学的发展,数的概念也得到发展为了解决测量、分配中遇到的将某些量进行等分的问题,人们引进了分数;为了表示各种具有相反意义的量以及满足记数的需要,人们又引进了负数.这样就把数集扩充到有理数集Q .显然N Q .如果把自然数集(含正整数和0)与负整数集合并在一起,构成整数集Z ,则有Z Q 、N Z .如果把整数看作分母为1的分数,那么有理数集实际上就是分数集有些量与量之间的比值,例如用正方形的边长去度量它的对角线所得的结果,无法用有理数表示,为了解决这个矛盾,人们又引进了无理数.所谓无理数,就是无限不循环小数.有理数集与无理数集合并在一起,构成实数集R .因为有理数都可看作循环小数(包括整数、有限小数),无理数都是无限不循环小数,所以实数集实际上就是小数集因生产和科学发展的需要而逐步扩充,数集的每一次扩充,对数学学科本身来说,也解决了在原有数集中某种运算不是永远可以实施的矛盾,分数解决了在整数集中不能整除的矛盾,负数解决了在正有理数集中不够减的矛盾,无理数解决了开方开不尽的矛盾.但是,数集扩到实数集R 以后,像x 2=-1这样的方程还是无解的,因为没有一个实数的平方等于-1.由于解方程的需要,人们引入了一个新数i ,叫做虚数单位.并由此产生的了复数二、讲解新课:1.虚数单位i :(1)它的平方等于-1,即 21i =-;(2)实数可以与它进行四则运算,进行四则运算时,原有加、乘运算律仍然成立.2. i 与-1的关系: i 就是-1的一个平方根,即方程x 2=-1的一个根,方程x 2=-1的另一个根是-i !3. i 的周期性:i 4n+1=i, i 4n+2=-1, i 4n+3=-i, i 4n =14.复数的定义:形如(,)a bi a b R +∈的数叫复数,a 叫复数的实部,b 叫复数的虚部全体复数所成的集合叫做复数集,用字母C 表示*3. 复数的代数形式: 复数通常用字母z 表示,即(,)z a bi a b R =+∈,把复数表示成a +bi 的形式,叫做复数的代数形式4. 复数与实数、虚数、纯虚数及0的关系:对于复数(,)a bi a b R +∈,当且仅当b =0时,复数a +bi (a 、b ∈R )是实数a ;当b ≠0时,复数z =a +bi 叫做虚数;当a =0且b ≠0时,z =bi 叫做纯虚数;当且仅当a=b =0时,z 就是实数0.5.复数集与其它数集之间的关系:N Z Q R C .6. 两个复数相等的定义:如果两个复数的实部和虚部分别相等,那么我们就说这两个复数相等这就是说,如果a ,b ,c ,d ∈R ,那么a +bi =c +di a =c ,b =d复数相等的定义是求复数值,在复数集中解方程的重要依据 一般地,两个复数只能说相等或不相等,而不能比较大小.如3+5i 与4+3i 不能比较大小.现有一个命题:“任何两个复数都不能比较大小”对吗?不对 如果两个复数都是实数,就可以比较大小只有当两个复数不全是实数时才不能比较大小7. 复平面、实轴、虚轴:复数z =a +bi (a 、b ∈R )与有序实数对(a ,b )是一一对应关系这是因为对于任何一个复数z =a +bi (a 、b ∈R ),由复数相等的定义可知,可以由一个有序实数对(a ,b )惟一确定,如z =3+2i 可以由有序实数对(3,2)确定,又如z =-2+i 可以由有序实数对(-2,1)来确定;又因为有序实数对(a ,b )与平面直角坐标系中的点是一一对应的,如有序实数对(3,2)它与平面直角坐标系中的点A ,横坐标为3,纵坐标为2,建立了一一对应的关系 由此可知,复数集与平面直角坐标系中的点集之间可以建立一一对应的关系.点Z 的横坐标是a ,纵坐标是b ,复数z =a +bi (a 、b ∈R )可用点Z (a ,b )表示,这个建立了直角坐标系来表示复数的平面叫做复平面,也叫高斯平面,x 轴叫做实轴,y 轴叫做虚轴实轴上的点都表示实数对于虚轴上的点要除原点外,因为原点对应的有序实数对为(0,0), 它所确定的复数是z =0+0i =0表示是实数.故除了原点外,虚轴上的点都表示纯虚数在复平面内的原点(0,0)表示实数0,实轴上的点(2,0)表示实数2,虚轴上的点(0,-1)表示纯虚数-i ,虚轴上的点(0,5)表示纯虚数5i非纯虚数对应的点在四个象限,例如点(-2,3)表示的复数是-2+3i ,z =-b Z(a ,b)a oy x5-3i 对应的点(-5,-3)在第三象限等等.复数集C 和复平面内所有的点所成的集合是一一对应关系,即 复数z a bi =+←−−−→一一对应复平面内的点(,)Z a b 这是因为,每一个复数有复平面内惟一的一个点和它对应;反过来,复平面内的每一个点,有惟一的一个复数和它对应.这就是复数的一种几何意义.也就是复数的另一种表示方法,即几何表示方法.三、讲解范例:例1请说出复数i i i i 53,31,213,32---+-+的实部和虚部,有没有纯虚数?答:它们都是虚数,它们的实部分别是2,-3,0,-3;虚部分别是3,21,-31,-5;-31i 是纯虚数. 例2 复数-2i +3.14的实部和虚部是什么?答:实部是3.14,虚部是-2.易错为:实部是-2,虚部是3.14!例3实数m 取什么数值时,复数z =m +1+(m -1)i 是:(1)实数? (2)虚数? (3)纯虚数?[分析]因为m ∈R ,所以m +1,m -1都是实数,由复数z =a +bi 是实数、虚数和纯虚数的条件可以确定m 的值.解:(1)当m -1=0,即m =1时,复数z 是实数;(2)当m -1≠0,即m ≠1时,复数z 是虚数;(3)当m +1=0,且m -1≠0时,即m =-1时,复数z 是纯虚数.例4 已知(2x -1)+i =y -(3-y )i ,其中x ,y ∈R ,求x 与y .解:根据复数相等的定义,得方程组⎩⎨⎧--==-)3(1,12y y x ,所以x =25,y =4 四、课堂练习:1.设集合C ={复数},A={实数},B ={纯虚数},若全集S=C ,则下列结论正确的是( )A.A ∪B =CB. S C A =BC.A ∩S C B =∅D.B ∪S C B =C2.复数(2x 2+5x +2)+(x 2+x -2)i 为虚数,则实数x 满足( )A.x =-21B.x =-2或-21 C.x ≠-2 D.x ≠1且x ≠-2 3.已知集合M ={1,2,(m 2-3m -1)+(m 2-5m -6)i },集合P ={-1,3}.M ∩P ={3},则实数m 的值为( )A.-1 B .-1或4 C.6 D.6或-14.满足方程x 2-2x -3+(9y 2-6y +1)i =0的实数对(x ,y )表示的点的个数是______.5.复数z 1=a +|b |i ,z 2=c +|d |i (a 、b 、c 、d ∈R ),则z 1=z 2的充要条件是______.6.设复数z =log 2(m 2-3m -3)+i log 2(3-m )(m ∈R ),如果z 是纯虚数,求m 的值.7.若方程x 2+(m +2i )x +(2+mi )=0至少有一个实数根,试求实数m 的值. 8.已知m ∈R ,复数z =1)2(-+m m m +(m 2+2m -3)i ,当m 为何值时,(1)z ∈R ; (2)z 是虚数;(3)z 是纯虚数;(4)z =21+4i . 答案:1.D 2.D 3. 解析:由题设知3∈M ,∴m 2-3m -1+(m 2-5m -6)i =3∴⎩⎨⎧=--=--06531322m m m m ,∴⎩⎨⎧-==-==1614m m m m 或或∴m =-1,故选A. 4. 解析:由题意知⎩⎨⎧=+-=--,0169,03222y y x x ∴⎪⎩⎪⎨⎧=-==3113y x x 或 ∴点对有(3,31),(-1,31)共有2个.答案:2 5. 解析:z 1=z 2⇔⎩⎨⎧==⇔||||d b c a a =c 且b 2=d 2.答案:a =c 且b 2=d 2 6.解:由题意知⎩⎨⎧≠-=--,0)3(log ,0)33(log 222m m m ∴⎪⎩⎪⎨⎧>-≠-=--03131332m m m m∴⎩⎨⎧<≠=--320432m m m m 且∴⎩⎨⎧≠<-==2314m m m m 且或,∴m =-1. 7. 解:方程化为(x 2+mx +2)+(2x +m )i =0.∴⎩⎨⎧=+=++02022m x mx x , ∴x =-2m ,∴,02242=+-m m ∴m 2=8,∴m =±22. 8. 解:(1)m 须满足⎩⎨⎧≠-=-+.11,0322m m m 解之得:m =-3.(2)m 须满足m 2+2m -3≠0且m -1≠0,解之得:m ≠1且m ≠-3.(3)m 须满足⎪⎩⎪⎨⎧≠-+=-+.032,01)2(2m m m m m 解之得:m =0或m =-2.(4)m 须满足⎪⎩⎪⎨⎧=-+=-+.432211)2(2m m m m m 解之得:m ∈∅。
杨浦⾼中补习班五⾓场新王牌最好的补习班寒假班预初英语辅导讲义第8讲阶段测试I. Phonetics (语⾳)A. Choose the word with a different sound in the group.(选出划线部分发⾳不同的单词)21. A) useful B) huge C) funny D) student22. A) capital B) spicy C) million D) sushiB. Choose the word that begins with a vowel.(选出读⾳以元⾳开头的单词)23. A) hour B) palace C) famous D) touristC. Write the word according to the English sounds.(根据⾳标写出单词单词)24. Beijing is __________ /'feim?s/ for the Great Wall.25. Judy and her friends are going to an __________ /,eksi'bi?n/ this Sunday.26. The bridge is more than two __________ /'kil?mi:t?(r)z/ long.II. Vocabulary and Grammar(词汇和语法):A. Choose the best answer(选择最恰当的答案)27. – Will you go to the cinema by _______ car?– No. I want to take _______ bus.A) /, a B) a, the C) a, / D) /, /28. Shirley is _______ a flower show with her classmates and teachers.A) in B) at C) on D) for29. Do you know who is the president _______ the USA?A) with B) to C) of D) about30. Have they bought a present for the teacher _______ ?A) ever B) never C) already D) yet31. Helen is _______ at singing than any other student in her class.A) good B) well C) better D) best32. Here is _______ information about the latest earthquake.A) a pair of B) a tin of C) a bar of D) a piece of33. In our school there are over 5,000 students. The underlined phrase mean _______.A) at most B) at least C) more than D) less than34. This theatre can hold nearly _______ people.A) three thousand B) three thousands C) three thousands of D) thousands of35. There isn’t any water _______ bread in the bridge.A) and B) or C) so D) but36. Mr. Brown looks _______ and he is always kind to us.A) happily B) angrily C) friendly D) sadly37. The old lady wants to buy some fish from _______ .A) American B) Chinese C) Thai D) Japan38. – How much did the tickets for the concert_______?– 180 yuan each. And 540 yuan altogetherA) cost B) take C) spend D) use39. In the past, people only _______ news from radio and newspapers.A) get B) got C) have got D) will get40. Judy’s j ob is to take care of sick animals. The underlined phrase means _______.A) look after B) look at C) look up D) look for41. – _______ have they lived in this city?– For nearly ten years.A) How far B) How much C) How soon D) How long42. – More and more people find out the earth is in danger.– _______ . We should try our best to protect the earth from pollution.A) That’s all right B) That’s rightC) You’re welcome D) It doesn’t matterB. Complete the following passage with the words or phrases in the box. Each can be used only once. (将下列单词或词组填⼊空格。
高一下(新世纪版)Unit 3 词汇精简版1.offend v. 冒犯;使...不愉快2.avoid v. 避免;逃避3.attempt n. 试图;企图4.emphasis n. 强调;重点5.attendant n. 服务员6.occupy v. 担任(职务或工作)7.fairly adv. 公正地;相当地8.handicapped adj. 残废的9.imply v. 暗示;意味10.helpless adj. 没用的;不能自立的11.fair adj. 公平的;公正的12.put emphasis on 强调13.change with the times 随时代变化而改变14.neighborhood n. 街坊;社区15.simply adj. 仅;只16.out-of-date 不合时宜17.bear in mind 记住18.pronunciation n. 发音19.handle v. 对待;掌握munication n. 交流;表达21.ad n. 广告22.shortcut n. 捷径;近路23.master v. 掌握;精通24.recipe n. 秘方;秘诀25.fluency n. 流利;流畅26.club n. 社团;俱乐部27.expose v. 使接触28.broadcast n. (电台或电视)节目v. 广播;播送29.context n. 场合;环境30.input n. 输入信息31.cultivate v. 培养;养成32.appropriate adj. 合适的;恰当的eless adj. 无用的;无效的34.pointless adj. 无目标的;无意义的35.effect n. 作用;效用36.quite a few 很多37.have an effect on 对...起作用1 / 3高一下词汇(新世纪版)Unit 41.block n. 街区v. 阻碍;阻止2.driveway n. 私人车道,汽车道3.lean v. 倾身;屈身4.back v. (使)后退;使退出5.signal n. 信号;暗号v. 用信号发出;标志6.arouse v. 唤起;激起7.shift v. 移动;转移n. 转移;转变8.reaction n. 反应9.content n. 内容10.yawn v. 打呵欠n. 呵欠11.doze v. 打瞌睡;打盹12.honour v. 尊敬n. 荣誉;名誉13.clue n. 线索;迹象14.attentive adv. 聚精会神地15.obstacle n. 障碍;妨碍16.pull into (火车等)到达;到站17.go down well 被接受;受环境18.in a low voice 低声19.the worst 最糟的部分20.go down 下沉21.call for 需要22.be clear of 清除了...的;不接触...的23.convey v. 传达;传递24.dishonest adj. 不诚实的;欺诈的25.confidence n.自信;信心26.status n. 地位;身份27.impolite adj. 无礼的28.elder adj. 年龄较大的n. 长者;前辈29.performance n. 演出;演奏30.delighted adj. 高兴的31.goodness 天哪32.incredible adj. 极妙的;难以置信的plicated adj. 复杂的34.move n. 挪动地方;移动位置35.posture n. 姿势,姿态36.unsure adj. 缺乏信心的;无把握的37.space n. 空间38.shy adj. 害羞的39.concept n. 概念;观念40.constantly adv. 不断地;时常地41.bump v. 碰;撞42.aware adj. 知道的;察觉的43.body language 肢体语言44.put one’s finger on 准确地证明或指出45.sell sb. out 背叛46.believe it or not 信不信由你47.bump into 无意中遇到48.become/be aware of 意识到;注意到49.in doubt 不确定的;未确定的2 / 3高二下(新世纪版)Unit 41.slide v. 使滑动2.unfamiliar adj. 不熟悉的;不认识的3.equivalent n. 同等物adj.相同的(常与to连用);同等的4.cast v. 投射(光、视线等)5.restless adj. 焦灼不安的6.suspicion n. 疑心,怀疑7.autograph n. 亲笔签名8.release v. 释放,放出9.be fresh from 新从...来的10.take to 喜欢11.in passing 顺便,附带地12.finishing touch 最后的修饰13.cast a glance at 看一眼14.as though 好像,仿佛15.in shock 吃惊地16.Sweden 瑞典17.seat v. 坐下18.study n. 书房19.torch n. 火把,火炬20.wheelchair n. 轮椅21.damage n. 损伤22.endure v. 忍受23.highlight n. 最精彩的部分24.gracious adj. 好心的,亲切的,优雅的25.chant v. 反复地喊,说,唱26.glory n. 荣誉27.motion n. 运动,动作28.historic adj. 有历史意义的st v. 持续;足够维持30.flame n. 火焰31.brotherhood n 兄弟般的关系.32.take...as an example 以...为例33.fall apart 瓦解,崩溃34.up and down 来来回回,上上下下35.drop by 顺便(或偶然)访问e by 访问,看望37.pass by (时间等)过去,流逝38.get in the way 妨碍39.brain damage 脑损伤40.many a 很多41.to the fullest 充分地,最大限度地42.starting point 起点43.line up 排队44.at the sight of看到45.Beethoven 贝多芬3 / 3。
课题:§11.2石油化工的龙头——乙烯(2)学习目标:乙烯的化学性质(B)烯烃(A)乙烯的实验室制法的原理和装置(B)一、课前预习1.乙烯在空气中燃烧时,火焰,同时产生,这是一个反应;乙烯使酸性高锰酸钾溶液,这是一个反应。
2.含有碳碳双键或碳碳叁键的烃称为烃,碳碳双键或碳碳叁键称为,与不饱和键相连的碳原子称为。
有机物分子里(填“饱和”或“不饱和”)碳原子和其他或直接结合而生成新物质的反应叫做反应。
由相对分子质量的化合物分子互相结合成为相对分子质量的化合物的反应,称为反应。
乙烯聚合成聚乙烯的反应也是加成反应,所以又称为反应。
3.分子里含有的烃叫做烯烃,乙烯是最简单的烯烃。
烯烃的通式是:。
分子里含有两个双键的链烃叫做,例如1,3-丁二烯(结构简式:)二烯烃的通式是:。
二、当堂检测基础巩固(A)4.能使酸性高锰酸钾溶液褪色的物质是A.C2H4 B.环烷烃C.C5H12 D.CH45.甲烷气体中混有少量乙烯气体,应将混合气体通过A.稀硫酸溶液B.氢氧化钠溶液C.溴水D.酸性高锰酸钾溶液6.烯烃的物理性质:①熔沸点:随着分子里碳原子数的增加,熔沸点_______________。
②n≤4的烯烃常温常压下都是_______,其他烯烃在常温常压下为液态或固态。
③密度:碳原子数越多,密度______;液态烯烃的密度______水的密度。
④溶解性:____溶于水,_____溶于有机溶剂。
7.烯烃的化学性质(与乙烯类似)①氧化反应a.燃烧_______________________________________b.使酸性KMnO4溶液_________。
②加成反应R-CH=CH-R′+Br-Br→③加聚反应R-CH=CH2能力提升(B)8.一种气态烷烃和一种气态烯烃的混合物9 g,其密度是相同条件下氢气密度的11.25倍,当混合气体通过足量溴水时溴水增重4.2 g,这两种气态烃是(A)甲烷和乙烯(B)乙烷和乙烯(C)甲烷和丙烯(D)甲烷和丁烯。
专题复习六第一讲1.噬菌体侵染细菌之后,合成新的噬菌体蛋白质外壳需要()A .细菌的DNA 及其氨基酸B .噬菌体的DNA 及其氨基酸C .噬菌体的DNA 和细菌的氨基酸D .细菌的DNA 及其噬菌体的氨基酸2.“噬菌体侵染细菌的实验”是研究遗传物质的经典实验,主要过程如下:①标记噬菌体→②噬菌体与细菌混合培养→③搅拌、离心→④检测放射性。
下列叙述正确的是()A .完整的实验过程需要利用分别含有35S 和32P 及既不含35S 也不含32P 的细菌B .②中少量噬菌体未侵入细菌会导致上清液中的放射性强度偏高C .③的作用是加速细菌的解体,促进噬菌体从细菌体内释放出来D .32P 标记的噬菌体进行该实验,④的结果是只能在沉淀物中检测到放射性3.图8是噬菌体侵染细菌实验的部分步骤示意图,对此过程的有关叙述正确的是()A .被35S 标记的噬菌体是接种在含有35S 的培养基中直接获得的B .选用噬菌体作为实验材料的原因之一是其成分只有蛋白质和DNAC .实验中采用搅拌和离心等手段是为了把DNA 和蛋白质分离D .在新形成的噬菌体中没有检测到35S ,说明噬菌体的遗传物质是DNA 而不是蛋白质4.用32p 标记噬菌体的DNA 组成成分,下列被标记的部位正确的是()A .①B .②C .③D .④5.图4表示某同学制作的DNA 双螺旋结构模型的一个片段。
其中存在的错误有()A .3处B .5处C .7处D .8处图8④①②③图4腺嘌呤尿嘧啶胞嘧啶鸟嘌呤核糖核糖核糖核糖PPP P6.以下碱基对模型中,正确的是()7.在“双螺旋DNA 分子模型搭建实验”中,为了逼真起见,用一种长度的塑料片代表A 和G ,用另一长度的塑料片代表C 和T ,并且使用代表氢键的订书钉将代表四种碱基的塑料片连为一体。
现已搭建一段含有10个碱基对的DNA 分子片段,其中有3对是A 与T 碱基对,那么由此搭建而成的DNA 双螺旋的整条模型的粗细和所用钉子数正确的是()A .粗细相同,23个钉B .粗细相同,27个钉C .粗细不同,23个钉D .粗细不同,27个钉8.若组成DNA 分子的N 元素全部为14N ,则在试管中离心后的结果如图乙;若组成DNA 分子的N 元素全部为15N ,则在试管中离心后的结果如图甲。
杨浦五角场新王牌库仑定律【知识点精析】一、两种电荷、电荷守恒一、两种电荷、电荷守恒1.1.自然界中只存在两种电荷,即正电荷和负电荷。
自然界中只存在两种电荷,即正电荷和负电荷。
自然界中只存在两种电荷,即正电荷和负电荷。
2.2.同种电荷互相排斥,异种电荷互相吸引。
同种电荷互相排斥,异种电荷互相吸引。
同种电荷互相排斥,异种电荷互相吸引。
3.3.摩擦起电、感应起电和接触起电的本质都只是电荷的转移。
摩擦起电、感应起电和接触起电的本质都只是电荷的转移。
摩擦起电、感应起电和接触起电的本质都只是电荷的转移。
4.4.电荷既不能被创造,电荷既不能被创造,电荷既不能被创造,也不能被消灭,也不能被消灭,它们只能是从一个物体转移到另一个物体,它们只能是从一个物体转移到另一个物体,或者或者从物体的一部分转移到另一部分,这就是电荷守恒定律。
从物体的一部分转移到另一部分,这就是电荷守恒定律。
5.5.电量的单位是:电量的单位是:电量的单位是:C C 。
任何带电粒子所带的电量都是基元电荷任何带电粒子所带的电量都是基元电荷((数值为1.61.6××10-19C)C)的整数倍。
的整数倍。
的整数倍。
二、库仑定律二、库仑定律1.1.库仑定律:库仑定律:F =kQq /r 2,是由法国物理学家库仑首先得出的,国际单位制中,静电力常量k =9=9××109N·m 2/C 2。
2.2.库仑定律的适用条件:计算真空中两静止点电荷间的相互作用。
库仑定律的适用条件:计算真空中两静止点电荷间的相互作用。
库仑定律的适用条件:计算真空中两静止点电荷间的相互作用。
三、静电的利用与防范三、静电的利用与防范1.1.静电的利用:静电除尘、静电喷涂、静电植绒和静电复印。
静电的利用:静电除尘、静电喷涂、静电植绒和静电复印。
静电的利用:静电除尘、静电喷涂、静电植绒和静电复印。
2.2.静电的防范:①保持空气湿度;静电的防范:①保持空气湿度;静电的防范:①保持空气湿度; ②使用避雷针;③良好接地。
原子结构、化学键、晶体、元素周期律与元素周期表综合题(一)(宝山)硫和氮是人们熟悉的物质,含硫、含氮的物质与人们的生活密切相关。
21. ___________________________________ 硫原子核外不同运动状态的电子有 __________ 种,其最外层电子排布式是____________________________氮的单质的电子式是__________ 其晶体类型是 ________ o22. NH3是氮的一种氢化物,其空间构型是________ ,其化学键类型是______________ o(二)(崇明)碳元素广泛存在于自然界中,对人类生命和生活具有重要意义。
含碳化合物在工业生产和国防建设中有广泛的应用。
21. 碳元素原子核外有 _________ 个未成对电子,最外层有___________ 种能量不同的电子。
CH4分子的空间构型为,是分子。
(填“极性”或“非极性”)22. 碳和硅是同主族元素,下列能说明二者非金属性相对强弱的是(填编号)a. CH。
的稳定性比Sibh强b. SiH。
的沸点比CH4咼C.碳酸是强酸,硅酸是弱酸 d.碳原子半径比硅原子小(三)(金山)磷是地壳中含量较为丰富的非金属元素,它的单质和化合物在工农业生产中应用广泛。
白磷可通过反应2Ca3(PO4) 2+10C^6CaO+P4+10CO 获得。
完成下列填空:20. 磷原子的最外层电子排布式是 ___________ ,氧原子核外有 ______ 种不同运动状态的电子。
C. 0两种元素非金属性较强的是_________________ o21. 白磷在空气中露置时间长了会因溫度达到—而自燃,使白磷升温的热量主要来自(四)(虹口)党的十九大报告指出:要持续实施大气污染防治行动,打赢蓝天保卫战。
当前空气质量检测的主要项目除了PM2.5夕卜,还有CO、SO2、氮氧化物(NO和NO2)、0 3等气体。
完成下列填空:221- S的核外电子排布式为_______________ , N 原子核外电子有__________ 种不同运动状态。
高一上Unit 1 新世纪版1. introduction n. 介绍2. professional n. 专业人员3. institution n. 机构4. gain v. 获得5. impact n. 影响;作用6. surgeon n. 外科医生7. organ n. 器官8. patient n. 病人9. file n. 档案;文件10. cabinet n. 储藏柜11. traditionally adv. 传统上12. fashion n. 时尚13. model n. 模型;模特14. style n. 风格;款式15. trend n. 趋势;时尚16. suitcase n. 手提箱17. tip n. 消费18. tiring adj. 令人疲劳的19. demanding adj. 要求高的;费力的20. rewarding adj. 值得做的,有意义的21. meaningful adj. 有意义的22. challenging adj. 具有挑战性的23. salary n. 薪水24. graduate n. 毕业生;毕业25. course n. 课程;一道菜26. career n. 事业,职业27. disagree v. 不同意28. partner n. 合伙人29. management n. 管理30. biology n. 生物学31. grateful adj. 感激的32. compose v. 创作;写作33. decision n. 决定34. successful adj. 成功的短语1. all walks of life 各行各业2. try one’s best 尽最大努力3. be involved in 参与;忙于4. all through one’s life 一生5. check in 签到6. even though 虽然,尽管7. take an interest in 对..产生兴趣8. make a decision 做决定牛津版1. well-dressed adj. 穿着讲究的2. glance v. 匆匆一看3. sigh v. 叹息4. senior adj. 级别高的5. employee n. 雇员6. prefer v. 更喜欢7. communicate v. 交流8. gesture n. 手势9. expression n. 表情10. appearance n. 外貌11. impression n. 印象12. downwards adv. 向下地13. assistance n. 帮助14. without hesitation 毫不犹豫15. remark v. 说;评论16. remind v. 提醒17. eye contact 眼神交流18. signal v.表示19. hostility n. 敌意20. boredom n. 无聊21. confusion n. 困惑22. maintain v. 保持23. consider v. 认为24. lack of 缺少25. last v. 持续26. avoid v. 避免27. respect n. 尊敬28. authority n. 权力29. in authority 掌权的30. concentration n. 专心31. subtle adj. 微妙的32. stare v. 盯着;凝视33. rude adj.粗鲁的Unit 2 新世纪版1. sculptor n. 雕刻家2. craftsman n. 手艺人3. workshop n. 作坊,车间4. leading adj. 最重要的,最好的5. sculpture n. 雕刻艺术6. satisfied adj. 满意的,满足的7. generally adv. 普遍地8. regard v. & n. 看作,视为9. outstanding adj. 杰出的10. ceiling n. 天花板11. upward adv. 向上12. fascination n. 迷人的事物,吸引力13. overseas adj. &adv. 来自外国的14. masterpiece n. 杰作15. at an early age 年纪还小时16. by the time 到..之前,不迟于17. regard as 看作,认为是18. turn down 回绝19. go through 经历20. lie on one’s back 仰卧21. a great number of 许多22. can’t help but do sth. 忍不住做某事23. impatient adj. 不耐烦的24. conduct v. 指挥25. absent-minded adj. 心不在焉的26. totally adv. 完全地27. deaf adj. 耳聋的28. creative adj. 创作性的29. ambitious adj. 有抱负的30. modest adj. 谦虚的31. selfless adj. 无私的32. heroic adj. 英勇的33. deed n. 行为34. technician n. 技师35. equip v. 配备36. remove v. 移动37. orderly adj. 有序的38. tricky adj. 棘手的39. measure v. 测量40. edge n. 边缘41. trust v. 信赖42. capable adj. 能干的43. handicapped adj. 残废的44. except for 除了45. keep sth. in order 使存放有序牛津版1. suit v. 适合2. guarantee v. 保证3. expert n. 专家4. angle n. 棱角5. balanced adj. 平衡的6. in addition 此外7. effective adj. 有效的8. normal adj. 正常的9. apply v. 使用10. squeeze v. 挤11. damage v. 损坏12. loosen v. 使变松13. dirt n. 灰尘14. overuse v. 过度使用15. bald adj. 秃顶的16. ensure v. 保证17. pay attention to 注意18. protein n. 蛋白质19. adequate adj. 足够的20. stress n. 压力21. rob...of 夺去22. remedy n.治疗方法23. regularly adv. 经常24. rub v. 搓高二上Unit 1 新世纪版1.solid adj.& n. 固体的2.ethnic adj. 种族的;民族的3.immigrant n. 移民4.vast adj. 巨大的5.well-being n. 健康,幸福6.unprocessed adj. 未加工的7.preserve 保存8.vegetarian n. 素食者9.rush v.& n. 匆忙地做;冲进10.custom n. 风俗,传统11.accidentally adv. 偶然地,意外地12.stir v. & n. 搅拌13.mold v. & n. 铸造14.horizon n. 视野,地平线短语1.be well-known for 因...而著名2.physical well-being 身体健康3.in a short time 很快4.even if 即使5.rush through 匆匆完成6.all the year round 一年到头7.for sure 确实8.expand one’s horizon 开阔视野牛津版1.promise v. 许诺2.keep one’s word 遵守诺言3.despite prep. 不管;尽管4.resort n. 旅游胜地5.be dying to do;be dying for sth.渴望做某事6.scramble v. 争抢,推挤7.check in 达到并登记8.slope n. 山坡9.instructor n. 教练;指导者10.point v. 指向11.cross v. 交叉12.in case 以防13.to be honest 老实说14.definitely adv. 肯定地,明确地15.manage to do 设法做成某事16.nevertheless adv. 然而;不过17.athlete n. 运动员pete v. 参加比赛petition n. 比赛,竞赛20.participate v. 参加21.refer to 涉及;有关;指bine v. 使混合23.endurance n. 耐力24.require v. 要求25. a series of 一系列26.all-round adj. 全面的27.physical adj. 身体的28.be equal in 在...方面相同的29.in many ways 在诸多方面;总体来说30.motto n. 座右铭;格言31.desire n. 愿望32.humanity n. 人类33.soar v. 翱翔Unit 2 新世纪版1. consume v. 消耗2. originate v. 起源于3. scientific adj. 科学的4. claim v. & n. 声称,主张5. effective adj. 有效的6. cancer n. 癌7. deadly adj. 致命的8. interfere v. 妨碍9. absorption n. 吸收;全神贯注10. iron n.&v. 铁;熨斗11. digestion n. 消化12. time-honoured adj. 因为古老而受敬仰的13. socialize v. 交际14. powdered adj. 粉末状的15. favor n. & v. 喜爱16. along with 同...一起17. be aware of 意识到,觉察18. interfere with 干扰19. date back to 追溯到20. set up 设立,建立21. pump n. & v. 用泵抽22. menu n. 菜单23. controversy n. 争吵;争论24. poison n. &v. 毒药;毒杀25. forbid v. 禁止26. spring v. 跳跃27. dose n. 剂量28. poisonous adj.有毒的29. moderately adv. 适量地30. stimulating adj.刺激的,鼓舞的31. vessel n. 血管32. pulse n. 脉搏33. stimulate v. 刺激34. worthwhile adj.值得做的35. imagination n. 想象力36. furthermore adv. 此外37. hook v. & n. 钩住;沉迷38. be with sb. 赞成某人39. spring up 迅速或突然生长40. by no means 绝不,一点也不41. act on 对...起作用42. get hooked on 沉溺于牛津版1. tutorial adj. 辅导的2. fee n. 费用3. reasonable adj. 合理的4. command of 掌握5. tutor n. 家庭教师6. qualified adj. 合格的7. sincere adj. 真诚的8. confidence n. 信心9. cheat v. 欺骗10. make money 赚钱11. attend v. 参加12. be forced to do 被迫做某事13. supplementary adj. 补充的14. comic n. 连环画15. video n. 录像16. as a result of 由于17. recommendation n. 推荐18. enroll v. 参加;入学;注册19. detective n. 侦探20. be willing to do 愿意做某事21. factor 因素22. solution n. 解决办法23. describe...as 把...描述为24. pace 速度25. at one’s own pace 按照自己的节奏26. convenient adj. 方便的27. be convenient for 方便的28. degree n. 学位29. career n. 事业30. interest v. 是感兴趣31. correspondence 通信32. audio adj. 录音的33. mail n. 邮政34. comment n. 评论35. make comments 提出意见36. software n. 软件37. on one’s own 独立地38. freedom 自由39. adapt..to 使...适应40. self-discipline 自律能力41. sense of achievement 成就感sense of satisfaction 满足感高三班课课本词汇本(1) 高一上(1&2);高二上(1&2)。