杨浦高考补习班五角场新王牌高考数学复习备战
杨浦区最好高考补习班 新王牌高考补习 数学一元二次不等式
yxO杨浦新王牌一元二次不等式的解法一、复习1、一元一次不等式的解法依据是不等式的基本性质3（乘法性质）：如果0,>>c b a ，那么bc ac >；如果0,<>c b a ，那么bc ac <.2、二次函数()02≠++=a c bx ax y 的图像。
二、新课（一）一元二次不等式的定义1、只含有 未知数，并且未知数的最高次数是 的 不等式叫做一元二次不等式。
2、一元二次不等式的一般形式为： 。
（二）一元二次不等式的解法探究 1、如何解一元二次不等式0322>--x x ？解法一：先分解因式，转化为一元一次不等式组求解。
解法二：求此不等式的的解集可看作求二次函数322--=x x y 取正值时x 的取值范围，即求该二次函数的图像在x 轴上方时x 的取值范围。
2、根据二次函数322--=x x y 的图像，得 一元二次不等式0322<--x x 的解集是 ； 一元二次不等式0322≥--x x 的解集是 ； 一元二次不等式0322≤--x x的解集是 。
3、已知一元二次方程02=++c bx ax 的根的判别式042>-=∆ac b ， 则此方程有两个不等实数根，不妨设为21,x x ，且21x x <， 作出对应二次函数c bx ax y ++=2的图像，由图可得：一元二次不等式)0(02>>++a c bx ax 的解集是 ； 一元二次不等式)0(02><++a c bx ax 的解集是 ；【拓展】若0<a ，则一元二次不等式02>++c bx ax 的解集是 ；一元二次不等式02<++c bx ax 的解集是 。
（三）用区间表示不等式的解集设b a 、都为实数，并且b a <,我们规定: (1)集合}|{b x a x ≤≤叫做 区间,表示为 ； (2)集合}|{b x a x <<叫做 区间,表示为 ；(3)集合}|{b x a x <≤或}|{b x a x ≤<叫做 区间,分别表示为 或 ； (4)实数集R 表示为 ；集合}|{a x x ≥表示为 ； 集合}|{a x x >表示为 ；集合}|{b x x ≤表示为 ； 集合}|{b x x <表示为 ；在上述所有的区间中，b a 、叫做区间的 ； “∞-”读作“负无穷大”，“∞+”读作“正无穷大”。
杨浦高中补习班五角场新王牌告诉您新高一衔接班对孩子有多重要
精解名题
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。
杨浦新王牌 秋季同步提高 迎接高考改革与解读 高一数学 王WI老师
（5）若 为偶函数， 为奇函数，且 ，则 Байду номын сангаас解析式是____________
和 的解析式____________
（6）定义在 上的函数 ，对任意 ，有 ，且 ，
求证： ； 判断 的奇偶性；
若存在非零常数 ,使 ，证明对任意 都有 成立；
三．【典例讲解】
例1已知 是 上的奇函数，且当 时， ，求 的解析式
例2若 为偶函数， 为奇函数，且 ，求 和 的解析式
例3已知定义在 上的奇函数 是减函数，且满足 ，求 的取值范围
例4设 是定义在 上的单调递增函数，且对定义域内任意 都有 ,
求使不等式 成立的取值范围.
例5已知函数 是奇函数,
(1)求 的值; (2)当 时,讨论函数的单调性.
（1） 是_____函数（2） 是____函数（3） 是____函数
（3）若函数 是偶函数，则 在区间___________上是增函数
（4）判断下列函数的奇偶性：
（1） （2）
（3） （4）
（5）①求证：函数 在 上是减函数②讨论函数 在(-2,2)内的单调性
③试讨论函数 在区间 上的单调性④求函数 的单调区间
（5）已知 ，其中 为常数，若 ，则 ____ ___
（6）若 ＝ 是偶函数，则 的递减区间是
（7）若 是 上的减函数，且 的图象经过点 和 ，则不等式
的解集是___________________
（8）（04上海高考）设奇函数 的定义域为 .若当 时， 的图象
如右图，则不等式 的解集是.
（9）若 定义在 上，对任意 均满足 ，则 为（奇或偶）函数
杨浦补习班 杨浦新王牌 点击高考 高三数学王WI老师
杨浦新王牌一．【知识回顾】<1>向量的相关概念：1.向量的概念：既有大小又有方向的量(注意向量和数量的区别) (1)向量的基本要素：大小和方向.(2)向量的表示：几何表示法AB u u u r ；符号表示法a ；坐标表示法),(y x j y i x a(3)向量的长度：即向量的大小，记作｜a｜.2.零向量：长度为0的向量叫零向量，记作0，注意零向量的方向是任意的；3.单位向量：长度为一个单位长度的向量叫做单位向量(与AB u u u r 共线的单位向量是||AB AB )；4.相等向量：长度相等且方向相同的两个向量叫相等向量，相等向量有传递性；),(),(2211y x y x 2121y y x x5.平行向量（也叫共线向量）：方向相同或相反的非零向量a 、b 叫做平行向量，记作：a ∥b，【注：①相等向量一定是共线向量，但共线向量不一定相等；②两个向量平行与与两条直线平行是不同的两个概念：两个向量平行包含两个向量共线, 但两条直线平行不包含两条直线重合；③平行向量无传递性！（因有0r)，规定零向量和任何向量平行；④三点A B C 、、共线 AB AC u u u r u u u r、共线；】6.相反向量：长度相等方向相反的向量叫做相反向量。
a 的相反向量是a.<2>向量的运算:向量的加减法，数与向量的乘积，向量的数量积（内积或点积）及其各运算的坐标表示和性质：<3>重要定理、公式：(1) 平面向量基本定理:21,e e是同一平面内两个不共线的向量，那么，对于这个平面内任一向量，有且仅有一对实数21, ，使2211e e a(2)两个向量平行的充要条件a ∥b a＝b 01221 y x y x(3)两个向量垂直的充要条件a ⊥b a ·b＝O 02121 y y x x(4)线段的定比分点公式设点P 分有向线段21P P 所成的比为 ，即P P 1＝2PP ，则OP ＝111OP ＋112OP (线段的定比分点的向量公式).1,12121y y y x x x (线段定比分点的坐标公式) 当1 时，得中点公式：OP ＝21（1OP ＋2OP ）或.2,22121y y y x x x二．【热身练习】（1）若向量a r ，b r 满足12a b r r ，且a r 与b r 的夹角为3，则a b r r _____________ （2）设向量(12)(23) ，，，a b ，若向量 a b 与向量(47) ，c 共线，则 _____________（3）a r ，b r 的夹角为120 ，1a r ，3b r 则5a b r r_____________（4）已知平面向量(2,4)a r ，(1,2)b r ．若()c a a b b r r r r r ，则||c r_____________（5）在平行四边形ABCD 中，AC 为一条对角线，若(2,4)AB u u u r ，(1,3)AC u u u r ,则BD u u u r_____________ （6）已知向量a 与b 的夹角为120o，且4 a b ，那么)2(b a b的值为_____________三．【例题讲解】A CBDEA ．2133b cB ．5233c b C ．2133b cD ．1233b c （2）在平行四边形ABCD 中，AC 与BD 交于点O E ，是线段OD 的中点，AE 的延长线与CD 交于点F ．若AC u u u r a ，BD u u u r b ，则AF u u u r（ ）A ．1142 a b B ．2133a bC ．1124 a bD ．1233 a b （3）设D 、E 、F 分别是△ABC 的三边BC 、CA 、AB 上的点，且2,DC BD u u u r u u u r 2,CE EA u u u r u u u r 2,AF FB u u u r u u u r则AD BE CF u u u r u u u r u u u r 与BC uuu r( )A.反向平行B.同向平行C.互相垂直D.既不平行也不垂直（4)设D 是ABC 边BC 延长线上一点，记AC AB AD )1( .若关于x 的方程22sin (1)sin 10x x 在[0,2) 上恰有两解，则实数 的取值范围是（ ）A. 2B. 4C. 122D. 4 或122（5）已知22,,1A B C x y 是圆上不同的三个点，0OA OB u u u r u u u r ，若存在, 实数使得OC u u u r=OA OB u u u r u u u r ，则, 的关系为（ ）A ． 221 ；B ．111；C ．1 ；D ． 1 ．<7> <8>(6)（C 闵行）（理）如图，△ABC 中,4AB ,AC =8, 60 BAC ，延长CB 到D ，使BA BD ，当E 点在线段AD上移动时，若AC AB AE ，则 t 的最大值是 .(7)（C 崇明）给定两个长度为1的平面向量OA 和OB ，它们的夹角为 120.如图所示，点C 在以O 为圆心的圆弧AB 上变动.若OB y OA x OC ，其中R y x ,，则y x 的取值范围是BCOA。
杨浦高中补习班杨浦高中培训机构新王牌数学资料2-推荐下载
例题7.The situation in Iraq is so dangerous our government has _________ the worker ________there.A. forbidden, to goB. demanded, not to goC. kept, goingD. required, not going例题8.In our childhood, we were often _____ by our strict Grandma to pay attention to our table manners.A. demandedB. remindedC. allowedD. hoped44.Insist vt.1)Insist on doing2)My daughter insists on having dinner before 6 o’clock.3)Indians insist that they should not use paper in the toilet.4)Indians insist that using water is better than paper.例题1.The man insisted ________ a taxi for me even though I told him I lived nearby.A.findB. to findC.on findingD.in finding例题2.The old man insisted that the young man ____ his money and ____ to the policeman.A.had stolen; be sentB. should steal; should be sentC. had stolen; was sentD. should steal; was sent45.reward vt.1)Mother rewarded me ______ an IPAD.2)I was rewarded _______ the good exam results.46.rewarding adj.1)The discussion between the United States and China has been rewarding.2)Papa gave me a camera and a lot of $$$ today. It is a rewarding day.47.Mean adj. Vt.1)In Venezuela, having a surgery means being positive towards life.2)With her beauty, Stefania was meant to be Miss Universe.3)Many people in Asia mean to go to Venezuela for better appearance every year.4)Some South American women are meant for the Venezuelan Beauty Pageant (选美比赛).5)They say Sousa is very mean to those girls.6)the means of …7)_____ means of …8)by all means9)by no means48.meanwhile adv. = in the meantime例题1.Your plan means __________ more money, while I mean __________ it.A. losing; changingB. losing; to changeC. to lose; changingD. to lose; to change例题2.高一完型： In China, ranking (排名) students according to their examination as a means ofencouraging students to study harder.（）46．A. has used B. has been usedC. has treatedD. has looked on例题3.Student loan is supposed to provide financial support for people who would __not be able to go to college .A. thereforeB. meanwhileC. neverthelessD. otherwise例题4.Every possible means ____to prevent the air pollution ,but the sky is still not clear.A. is usedB. has been usedC. had been usedD. are used例题5.I'm sorry I didn't mean ________ you.A.hurtB. to hurtC. hurtingD. having hurt例题6.---Let's have a chat over the coming football matches,shall we?-----Sorry. I am tired,and I ______ going to bed.A.would likeB.meanC.intendD.feel like例题7.It's too late to go out now. ________, it's starting to rain.A.BesidesB. MeanwhileC. HoweverD. Anyhow例题8.Can you make a sentence to _____ the meaning of the phrase?A. show outB. bring outC. turn outD. work out例题9.In a way I can see what you mean, even though I don’t ______ your point of view.A. recognizeB. shareC. agreeD. permit例题10.He is in______control of the company. I mean, the company is in_____control of him.A. the; /B. /; theC. the; theD. /; /例题11.If you think that treating a woman well means always_______her permission for things, think again.A. getsB. gotC. to getD. getting例题12.----Can you tell me what the word mean?------Why don't you________it up in a dictionary.A.pickB.takeC.lookD.make例题13.All possible means ________ been taken to prevent the river ________.A.have; pollutingB. has; pollutedC. has; from pollutedD. have; being polluted例题14.Jim went to answer the phone. _______, Harry started to prepare lunch.A. HoweverB. NeverthelessC. BesidesD. Meanwhile二．阅读理解解题技巧阅读理解例题1.The researchers’ report said, “While more notes are beneficial, if the notes are taken mindlessly, as is more likely the case on a laptop, the benefit disappears.”In another experiment aimed at testing long-term memory, students took notes as before but were tested a week after the lecture. This time, the students who wrote notesby hand performed significantly better on the exam.23.The author of the passage aims to .A.examine the importance of long-term memoryB.stress the benefit of taking notes by handC.explain the process of taking notesD.promote the use of laptops例题2.These two experiments suggest that handwritten notes are not only better for immediate learning and understanding, but that they also lead to superior revision in the future.24. The passage is likely to appear in __.A. a newspaper advertisementB. a computer textbookC. a science magazineD. a finance report例题3.Nitrogen（氮）and carbon are shared through miles of underground fungi（真菌）networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons（神经元）in our brains, and when one tree is destroyed, it affects all.Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend. She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest.30. “Mother trees” are extremely important because they .A.look the largest in size in the forestB.pass on nutrition to young treesC.seem more likely to be cut down by humansD.know more about the complex “tree societies”例题4.“We didn’t take any notice of it.” Simard says sadly. “Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.31.The underlined word “it” in the last paragraph refers to .A.how “tree societies” workB.how trees grow oldC.how forestry industry developsD.how young trees survive32.What would be the best title for the passage?_____A.Old Trees Communicate Like HumansB.Young Trees Are In Need Of ProtectionC.Trees Are More Awesome Than You ThinkD.Trees Contribute To Our Society例题5.With around 100 students scheduled to be in that 9 am Monday morning lecture, it is no surprise that almost 20 people actually make it to the class and only 10 of them arestill awake after the first 10 minutes; it is not even a surprise that most of them are still in their pyjamas. Obviously, students are terrible at adjusting their sleep cycles to their daily schedule.43. What docs the author stress in Paragraph 1? ________A. Many students are absent from class.B. Students are very tired on Monday mornings.C. Students do not adjust their sleep patterns well.D. Students are not well prepared for class on Mondays.第7讲完型填空高中完型填空考察内容：1.完型填空高考话题：2010年：议论文2011年：经济类评论/议论2012年：新闻/人文类科技报道2013年：议论2014年：说明2.完型填空考查逻辑含义——需要用中文预判：例题:住的离公司近可以节约_______A.房租B.设施C.通讯D. 车费(2013闸北一模）Besides living near the work place is always welcome as it saves time and fares on __55__ .50.A.housing B. facilities munication D. transportation3.完型填空考查词汇：1）动词动词短语2）名词3）形容词4）副词5）独立的介词短语（2014年上海高考）52. A. occasionally B. habitually C. independently D. originally53. A. social B. political C. historical D. cultural56. A. confirms B. rejects C. outlines D. broadens57. A. for instance B. in addition C. on the contrary D. as a result58. A. motivation B. appearance C. emotion D. behaviour解题原则1.连词前后的对等关系：句子之间的关系不是并列就是转折：例题1.In spite of 40 winds and rough seas, Pickle made the voyage of more than 1, 000 miles in just over eight days....40．A．strong B．weak C．warm D．light例题2.The girl became increasingly worried about this, both when 46 and in her dreams.46. A. asleep B. away C. around D. awake完型选项的关系：例题3.David stepped out of the toilet and stopped in surprise —the library lights were off. The place was 29 . The doors had been shut.29.A.lonely B.empty C.noisy D.crowded例题4.She made it through the class．Perhaps she thanked the young man; she is not 51 ．51．A．interested B．doubtful C．puzzled D．Sure例题5.It wasn’t hard;she 32 every minute of it.32.A.disliked B.loved C.expected D.bored例题6.“What’s up?”I asked．He answered in 47 English,“I…I no get money to buy book．”47．A．old B．broken C．traditional D．modern例题7.Is my main idea or purpose _clear_ throughout my draft? Do I ever lose sight of my purpose? Have I given my readers all of the _____ that is, facts, opinions, inferences --- that they need in order to understand my main idea? Finally, have I included too many _unnecessary_ details that may confuse readers? （上海卷）A. angles B . evidence C . information D . hints例题8.Eleven-year-old Angela had something wrong with her nervous system．She was unable to 36 ．In fact,she could hardly make any 37 ．36．A．see B．hear C．talk D．walk 37．A．progress B．difference C．movement D．achievement例题9.We can hate waiting, 38 it or even get good at it! But one thing is certain --- we cannot avoid it．38．A．accept B．control C．change D．improve例题10.As well, children arc even taught that hurting other players is _ acceptable or are pushed to continue playing even when they are injured. _59 , the media makes violence seem exciting. （上海卷）59. A. By contrast B. In additionC. As a resultD.After all例题11.Dr．Richardson never 33 her decision. 34 ,she was so pleased with May’s work that she later accepted two other deaf women as student nurses．33．A．regretted B．thought of C．liked D．believed34．A．In fact B．In a hurry C．In surprise D．In public例题12.Seeing that he had an 24 face, she let him in and gave him a nice treat. 24. A. interesting B. honest C. anxious D. angry例题13.When I took the first exam, I was shocked to find a 77, C-plus, on my test paper, 39 English was my best subject.39. A. but B. so C. for D. or例题14.I told her I would mess it up, 37 I had never worked at the bar before.37.A.because B.though C.until D.while例题15.The passengers on the bus watched with sympathy as Susan made her way carefully up the steps. She paid the driver and then, using her hands to the seats,settled in one of them. It had been a year since Susan became blind.A. touch B .grab C .count D .feel例题16.They continued to climb until they reached the old temple at the 49 of the mountain.49.A.tip B.back C.top D.bottom例题17.Children often do as much as what adults,particularly parents and teachers, expect of them.That is,tell a child he is “ 55 ,”and he may play the role of a foolish child.55.A.wise B.rude C.shy D.stupid例题18.I shrugged my shoulders.I thought my mother’s idea was a bad one,but I 43 .43.A.guessed B.obeyed C.begged D.admitted例题19.“What was he talking about!” Then I got it. I had set my trays on his wife’s orthopedic walker (助步器). I stood frozen as ice, but my face was 52 .52. A. cold B. full of joy C. pale D. on fire例题20.One day,Raul was miles away from the small ranch（牧场）house in a large valley．36 seemed to be all right,yet he felt strange and somewhat uneasy．36．A．Something B．Everything C．Anything D．Nothing例题21.44 he put on some warm clothes, it didn’t work, for there were too many of us.44. A. Since B. Once C. Whether D. Although例题22.Apparently, although no one wants to be 51 all the time, everyone needs some degree of privacy.51. A. noisy B. alone C. personal D. sociable例题23.Although she believed that she had a 38 chance of recovering,the doctors said that few ,if any,could come back to normal after getting this disease．。
杨浦暑假补习班五角场新王牌小学奥数专题训练
火车过桥常见题型及解题方法
【随练1】一列火车经过南京长江大桥，大桥长6700米，这列火车长100米，火车每分钟行400米，这列
客车经过长江大桥需要多少分钟？
【随练2】一座铁路桥长1200米，一列火车开过大桥需要75秒，火车开过路旁一信号杆需要15秒，求火车
的速度和车身长
【随练3】已知某铁路桥长960米，一列火车从桥上通过，测得火车从开始上桥到完全下桥共用100秒，
整列火车完全在桥上的时间为60秒，求火车的速度和长度？
【随练4】小明在铁路旁边沿铁路方向的公路上散步，他散步的速度是2米/秒，这时从他后面开过来一列
火车，从车头到车尾经过他身旁共用了21秒．已知火车全长336米，求火车的速度．
火车
火车桥火车行驶路程
课堂检测
火车过桥和火车与人的相遇追及。
杨浦高中补习班杨浦高中培训机构新王牌数学资料11
例题1.Make your parents and teachers happy!Are you having problems finishing your homework on time? Do you avoid tidying your room until your mom shouts at you? You don’t need to worry if you buy a Mr. Helping Hand personal robot. Mr. H can be programmed to organize your homework.Your own personal robot will follow you around, putting away books and objects that you have left on the floor or bed.Mr. H also has these features (特点)·weighs only 500 grams·includes long-lasting batteries·comes with a 5-year guarantee·remembers simple instructions56. With help from a Mr.H, you can .A. stop using batteries.B. finish your homework on time.C. remember your teacher’s instructions.D. get your room tidied on your way home.59. Where would you be most likely to find the text?__________A. On a notice boardB. In a company brochure.C. On a teenage websiteD. In a college newspaper.例题2.WATCH CONTROLThis is a watch that James Bond would be proud to wear!This is NOT a watch for ordinary people!Your electronic PENGO WATCH CONTROLacts as a remote control for TVs and videos.gives you a daily weather forecast.reminds you when to hand in your homework.sets off a silent warning alarm when parents or teachers are near.Besides, your PENGO WATCH CONTROLwill always tell you the time accurately!57. A PENGO WATCH CONTROL can help you to .A. repair your TVB. organize your homeworkC. be a James BondD. know what the weather is like例题3.Sea Life Melbourne AquariumThe all-new Sea Life Melbourne Aquarium, situated in the heart of Melbourne’s CBD, is one of Victoria’s leading visitor attractions and an unforgettable outing for the whole family. Having 12 amazing zones of discovery, Sea Life Melbourne Aquarium is the very place that you cannot miss when you visit the city.* Opening TimesSea Life Melbourne Aquarium is open from 9:30 am until 6:00 pm every day of the year, including public holidays. Last admission is at 5:00 pm, one hour before closing.* Location ( 位置)Sea Life Melbourne Aquarium is located on the corner of Flinders Street and KingStreet, Melbourne. It is situated on the Yarra River, opposite Crown Entertainment Complex.56. Sea Life Melbourne Aquarium _______ .A. is located at the center of the CBD in the cityB. has 12 most attractive places in MelbourneC. admits visitors from 9:30 am until 6:00 pmD. is beside Crown Entertainment Complex例题4.* Getting to Sea Life Melbourne AquariumTrainThe Sea Life Melbourne Aquarium train stop is located on the free City Circle Tram route and also routes 70 and 75. City Circle trams run every 10 minutes in both directions.Shuttle BusThe Sea Life Melbourne Aquarium is a free bus service, stopping at key tourist attractions in and around the City. Running daily, every 15 minutes from 10:00 am to 4:00 pm.57. Getting to Sea Life Melbourne Aquarium, visitors can take ________.A. trains from southern Cross train stationB. shuttle buses around the train stationC. boats across the yarra RiverD. either tram route 70 or 75例题5.Car ParkingWhile there is no public car parking at Sea Life Melbourne Aquarium, there are several public car parking lots available only a short walk away.* Wheelchair AccessSea Life Melbourne Aquarium provides people in wheelchairs with full access to all 12 zones. Each floor also has wheelchair accessible toilets.58. Sea Life Melbourne Aquarium offers visitors _______.(2014年北京卷)A. free car parkingB. wheelchair accessC. Internet connectionD. transportation service例题6.* TermsTickets will be emailed to you immediately after purchase or you can download and print your ticket once payment has been accepted. Please print out all tickets purchased and present at the front entrance of Sea Life Melbourne Aquarium. No ticket, no entry!59. Tickets to Sea Life Melbourne Aquarium ______ .A. are free to all visitorsB. can be pursed by emailC. are checked at the entranceD.can be printed at the ticket office例题7.Metro Pocket GuideMetrorailEach passenger needs a farecard to enter and go out. Up to two children under ago five may travel free with a paying customer.Farecard machine are in every station, Bring small bills because there are no changemachines in the station and farecard machine only provide up to $ 5 in change.Get one of unlimited Metrorail rides with a One Day Pass. Buy it from a farecard machine in Metro stations. Use it after 9:30 a.m. until closing on weekdays, and all day on weekends and holidays.Hours of ServiceOpen: 5 a.m Mon—Fri 7a.m. Sat—Sun.Close: midnight Sun—Thur. 3a.m. Fri—Sat. nightsLast train time vary. T o avoid (避免) missing the last train, please check the last train time posted in the station.68. What should you know about farecard machines? _______A. They start selling tickets at 9:30 a.m.B. They are connected to change machines.C. They offer special service to the elderly.D. They make change for no more than $5.69. At what time does Metrorail stop service on Saturday? ______A. At midnightB. at 3 a.m.C. at 5 a.m.D. at 7 p.m.例题8.MetrobusWhen paying with exact change, the fare is $ 1.35 . when paying with a smatTrip® CARD the fare is $1.25Fares for the Senior /disabled customersSenior citizens 65 and older and disabled customers may ride for half the regular fare. On Metrorail and Metrobus, use a senior/disabled farecard or SmarTrip®card. For more information about buying senior/disabled farecards, or SmarTrip®cards and passes, please visit or call 202-637-7000 and 202-637-8000.Senior citizens and disabled customers can get free guide on how to use proper Metrobus and Metrorail services by calling 202-962-110070. What is good about a SmarTrip® card? ________A. It is convenient for old peopleB. It saves money for its usersC. it can be bought at any timeD. it is sold on the Internet.例题9.T ravel tips·Avoid riding during weekday rush periods –before 9:30 a.m. and between 4 and 6 p.m. ·If you lose something on a bus or train or in a station, please call Lost & Found at 202-962-1195.71. Which number should you call if you lose something on the Metro? ______A. 202-962-1195B.202-962-1100C.202-673-7000D.202-673-8000例题10.BLOOD DRIVE ＆MARROW（骨髓）REGISTRATION“These patients deserve a chance at a normal, happy future and they rely on the kindness of the strangers to make that happen.—Daisy, Isabelle’s MotherIsabelle is the daughter of Daisy and Saman Mirzaei. In January 2008 Isabelle wasdiagnosed with a genetic blood disorder，beta thalassemia. Isabelle’s body is unable to produce healthy red blood cells. As a result, Isabelle has been receiving blood transfusions every 4-6weeks since she was 11 months old. A lifetime of regular transfusions can lead to serious medical problems. Her only chance at a normal, healthy life is to have a marrow transplant. Isabelle is an only child, so doctors have started a search for an unrelated marrow donor through The Match Registry. The Mirzaei family asks that you consider helping patients like Isabelle by registering to be a marrow donor and give the gift of life, the gift of blood.65. We can learn from the passage that_________.A. the blood drive is organized by Isabelle's motherB. Isabelle receives blood transfusions regularlyC. Isabelle has been ill for 11 monthsD. doctors will sponsor Isabelle's family。
杨浦五角场最好的高考补习班 新王牌名师辅导
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。
杨浦高中补习班杨浦培训机构新王牌数学资料5
第５节函数的单调性【重点知识梳理】一、函数的单调性1.函数的单调性是局部性质从定义上看，函数的单调性是指函数在定义域的某个子区间上的性质，是局部的特征．在某个区间上单调，在整个定义域上不一定单调．2．函数的单调区间的求法函数的单调区间是函数定义域的子区间，所以求解函数的单调区间，必须先求出函数的定义域．对于基本初等函数的单调区间可以直接利用已知结论求解，如二次函数、对数函数、指数函数等；如果是复合函数，应根据复合函数的单调性的判断方法，首先判断两个简单函数的单调性，再根据“同则增，异则减”的法则求解函数的单调区间．【注意】单调区间只能用区间表示，不能用集合或不等式表示；如有多个单调区间应分别写，不能用并集符号“∪”联结，也不能用“或”联结．二、函数单调性的判断对于给出具体解析式的函数，证明其在某区间上的单调性有两种方法：(1)结合定义(基本步骤为取值、作差或作商、变形、判断)证明；(2)可导函数则可以利用导数证明．对于抽象函数单调性的证明，一般采用定义法进行．例1．判断函数g (x )＝－2x x －1在 (1，＋∞)上的单调性．三、求函数的单调区间的常用方法(1)利用已知函数的单调性，即转化为已知函数的和、差或复合函数，求单调区间．(2)定义法：先求定义域，再利用单调性定义．(3)图象法：如果f (x )是以图象形式给出的，或者f (x )的图象易作出，可由图象的直观性写出它的单调区间．(4)导数法：利用导数的正负确定函数的单调区间．例2．函数f (x )＝|x －2|x 的单调减区间是( ) A ．[1,2]B ．[－1,0]C ．[0,2]D ．[2，＋∞)四、单调性的应用主要涉及利用单调性求最值，进行大小比较，解抽象函数不等式，解题时要注意：一是函数定义域的限制；二是函数单调性的判定；三是等价转化思想与数形结合思想的运用．例3．(1)函数f (x )＝1x －1在[2,3]上的最小值为________，最大值为________． (2)已知函数f (x )＝1a －1x(a >0，x >0)，若f (x )在⎣⎡⎦⎤12，2上的值域为⎣⎡⎦⎤12，2，则a ＝__________.【高频考点突破】考点一 函数单调性的判断及应用例1 讨论f (x )＝a x ＋a －x (a >0，且a ≠1)在(0，＋∞)上的单调性．【变式探究】证明函数f (x )＝2x －1x在(－∞，0)上是增函数．考点二 求函数的单调区间例2、求出下列函数的单调区间：(1)f (x )＝|x 2－4x ＋3|；(2)f (x )＝log 2(x 2－1)．【变式探究1】设函数y ＝f (x )在(－∞，＋∞)内有定义．对于给定的正数k ，定义函数f k (x )＝⎩⎪⎨⎪⎧ f x ，f x ≤k ，k ，f x ＞k ，取函数f (x )＝2－|x |.当k ＝12时，函数f k (x )的单调递增区间为( )A ．(－∞，0)B ．(0，＋∞)C ．(－∞，－1)D ．(1，＋∞)【变式探究2】(1)给定函数①y ＝x ；②y ＝log 0.5(x ＋1)；③y ＝|x －1|；④y ＝2x ＋1.其中在区间(0，1)上单调递减的函数序号是________．(2) 若函数f (x )＝|2x ＋a |的单调递增区间是[3，＋∞)，则a ＝________．考点三 抽象函数的单调性例3 定义在R 上的函数y ＝f (x )，f (0)≠0，当x >0时，f (x )>1，且对任意的a ，b ∈R ，有f (a ＋b )＝f (a )·f (b )．(1)证明：f (0)＝1；(2)证明：对任意的x ∈R ，恒有f (x )>0；(3)证明：f (x )是R 上的增函数；(4)若f (x )·f (2x －x 2)>1，求x 的取值范围．考点四 利用单调性求函数的最值例4、函数f (x )＝2x －a x的定义域为(0，1](a 为实数)． (1)当a ＝－1时，求函数y ＝f (x )的值域；(2)若函数y ＝f (x )在定义域上是减函数，求a 的取值范围；(3)求函数y ＝f (x )在(0，1]上的最大值及最小值，并求出函数取最值时x 的值．考点五 函数中的新定义问题例5、函数f (x )的定义域为A ，若x 1，x 2∈A 且f (x 1)＝f (x 2)时总有x 1＝x 2，则称f (x )为单函数，例如，函数f (x )＝2x ＋1(x ∈R)是单函数．下列命题：①函数f(x)＝x2(x∈R)是单函数；②指数函数f(x)＝2x(x∈R)是单函数；③若f(x)为单函数，x1，x2∈A且x1≠x2，则f(x1)≠f(x2)；④在定义域上具有单调性的函数一定是单函数．其中的真命题是________．(写出所有真命题的编号)【变式探究】(1)定义新运算“⊕”：当a≥b时，a⊕b＝a；当a<b时，a⊕b＝b2，则函数f(x)＝(1⊕x)x－(2⊕x)，x∈[－2，2]的最大值等于()A．－1 B．1 C．6 D．12(2)设f(x)与g(x)是定义在同一区间[a，b]上的两个函数，若对任意x∈[a，b]，都有|f(x)－g(x)|≤1成立，则称f(x)和g(x)在[a，b]上是“亲密函数”，区间[a，b]称为“亲密区间”．若f(x)＝x2＋x＋2与g(x)＝2x＋1在[a，b]上是“亲密函数”，则其“亲密区间”可以是() A．[0，2] B．[0，1] C．[1，2] D．[－1，0]【当堂巩固】１．定义在R上的偶函数y=f(x)满足f(x+1)=－f(x),且在[－1,0]上单调递增,设a=f（3）, b=f(2), c=f（2）,则a、b、c的大小关系是。
杨浦五角场最好的初中数理化补习 新王牌理科好
五角场新王牌电65656581选择题。
1. 关于能的概念，下列说法中，正确的是（）A．用线悬挂着的物体，它没有对物体做功，所以没有能B．甲物体的速度比乙物体速度大，则甲物体的动能一定比乙物体的动能大C．甲物体的位置比乙物体的位置高，则甲物体的势能一定比乙物体的势能大D．空中飞行的子弹，因为它能做功所以具有能2．下列物体中，既有动能又有势能的是（）A．在平地滚动的足球B．被运动员举着的杠铃C．在空中飞行的小鸟D．被压扁了的皮球3. 一辆汽车加速驶上斜坡，则它的（）A. 动能减小，重力势能不变B. 动能增加，重力势能增加C. 动能不变，重力势能增加D. 动能不变，重力势能减小4. 空中相同高度飞行的大型客机和轻型战斗机，它们的速度相同，则（）A. 战斗机的动能大B. 战斗机的势能大C. 战斗机的机械能大D. 客机的机械能大5. 桌面上两个质量不相同的小球甲和乙，已知m甲> m乙, 它们在桌面上水平滚动速度相同。
下列说法正确的是（）A．甲球和乙球的势能相等B．甲球和乙球的动能相等C．甲球的机械能大于乙球的机械能D．乙球的机械能大于甲球的机械能6. 下面所示的情况，机械能增加的是（）A．列车在平直的轨道上匀速行驶B．汽车沿斜坡匀速向下行驶C．游乐场中的过山车由上向下加速俯冲D．起重机向上匀速吊起货物7. 如图，小球由静止从光滑轨道A点滚下到最低处B点时，下列说法中正确的是（）A．小球在A点时只有动能，没有重力势能B．小球在A点时只有重力势能，没有动能C．小球从A点到B点的过程中，动能转化为重力势能D．小球从A点到B点的过程中，机械能增加8. 物体受到一对平衡力作用时，对于它的机械能的判断，正确的是（）A．机械能一定不变B．势能可能减少C．动能可能不变D．势能一定不变9. 下面过程中，势能转化为动能的是（）A．滚摆在上升B．在水平路上的汽车速度加大C．弹簧正被压缩D．拉长的弹弓将石子弹出去10. 下列机械能增大的是（）A．火箭升空B．小朋友从滑梯上滑下C．汽车水平匀速行驶D．卫星绕地球转动11. 如图所示，轨道ABC光滑，弹簧固定在水平轨道末端，小球从A处由静止滚下，撞击弹簧后又将沿轨道返回滚上斜面．在这整个过程中，机械能转化的情况是（）A．重力势能→动能→重力势能B．动能→弹性势能→动能C．动能→势能→动能→势能→动能D．重力势能→动能→弹性势能→动能→重力势能12. 关于功和能的关系，下列说法正确的是（）A．物体具有的能越多，它做的功越多B．物体有了能就一定正在做功C．做功的物体一定具有能D．物体做功的多少与它具有的能有关13.下列说法正确的是（）A．甲物体比乙物体所处的位置高，则甲的势能比乙的势能大B．甲物体比乙物体所处的速度大，则甲的动能比乙的动能大C．重力势能在减少时，动能一定在增加D．处于平衡状态的物体，既可能有动能，也可能有势能14. 同一小车先后两次沿同一水平面做匀速直线运动，小车前后两次的s-t图象如图所示，则第一次次运动时的（）A．合力小B．惯性大C．速度小D．机械能大15. 跳伞运动员从高空下落时，他受到的空气阻力等于他和伞的总重力，下列正确的是（）A．动能，势能和机械能都不变B．重力势能，动能增加，总机械能不变C．重力势能减小，动能不变，总机械能减少D．重力势能不变，动能为零，总机械能不变16. 下列过程中，动能转化为势能的是（）A．钟表里旋紧的发条，带动齿轮转动B．重锤从高处下落C．压缩的弹簧将物体弹射出去D．向上抛出的石块的上升过程1. 流动的水，高举的重锺及压缩的弹簧都能够，我们说它们具有。
杨浦高中补习班杨浦初高中衔接培训机构五角场新王牌教学资料2
专题一生命的基础（物质、结构）4、细胞中的主要能源物质——糖类（1）糖类的分类及其功能元素的组成：C、H、O核糖RNA成分五碳糖脱氧核糖DNA成分单糖：葡萄糖光合作用产物，能源物质六碳糖果糖能源物质半乳糖是组成乳糖的单体麦芽糖1葡萄糖+1葡萄糖发芽的小麦中植物特有二糖：蔗糖1葡萄糖+1果糖甘蔗、甜菜乳糖1半乳糖+1葡萄糖动物乳汁动物特有淀粉储能物质植物特有多糖：纤维素结构多糖，植物细胞壁的基本组成成分肝糖原储存能量，调节血糖糖原动物特有肌糖原无氧呼吸，氧化分解时为肌肉提供能量（2）还原糖的鉴定及检测班氏试剂：取柠檬酸钠86.5g和无水碳酸钠50g加入1000ml锥形瓶中，加水350ml，加热至溶解。
另取100ml锥形瓶加入硫酸铜8.65g，加水约50ml，加热溶解。
待二者冷却至室温，将硫酸铜溶液慢慢倒入前液，随时搅匀，并补足水量至500ml。
实验原理：还原糖具有还原性的醛基，在碱性溶液中能将Cu2+还原成Cu+，Cu+再与OH—合成黄色的CuOH，加热后，即生成CuO砖红色沉淀。
实验操作：在沸水浴加热，可观察到溶液开始为蓝色，后来出现黄绿色、土黄色或砖红色沉淀。
实验材料选择：易于获得的富含还原糖的一些颜色白色或近无色的果肉，比如梨。
（3）常见的一些还原糖葡萄糖、果糖、麦芽糖例题5.下列各种糖类物质中，既存在于动物细胞内又存在于植物细胞内的是A．淀粉和核糖B．葡萄糖、核糖和麦芽糖C．核糖、脱氧核糖和葡萄糖D．糖原、乳糖、蔗糖变式.下列叙述中，属于淀粉、纤维素和糖原共同特征的是A．都是细胞内贮存能量的物质B．可以同时存在于同一细胞内C．基本组成单位都是六碳糖D．都含有C、H、O、N四种元素。
杨浦五角场高考补习班新王牌课本词汇系统复习精简版(二)
新世纪版高一（上）Unit 33. utter v. 说，讲4. shame n. 羞耻，惭愧5. tip n. 建议6. attention n. 注意力7. chat v. 闲聊8. facial adj. 面部的9. expression n. 表情10. cue n. 提示，暗示11. stare v. 盯着看12. positive adj. 积极的，乐观的13. indicate v. 表明14. topic n. 话题15. universal adj. 普遍的，一般的16. share v. 分享17. launch v. 发动，发起18. religion n. 宗教信仰19. flow v. （讲话或文笔）流畅20. naturally adv. 正常地，自然地22. comment n. 意见，评论23. attentively adv. 专心地24. track n. 方向v. 追踪25. think to oneself 心里想28. feel like doing sth. 想要做...29. what if 如果...将会怎样31. stick to 紧扣（主题）33. subway n. 地铁34. technical adj. 技术的35. leisure n. 闲暇36. somewhat adv. 有点儿，有几分37. marriage n. 婚姻38. political adj. 政治的39. religious adj. 宗教的40. belief n. 相信；信仰41. financial adj. 金融的42. critical adj. 评判性的43. behavior n. 行为举止44. personal adj. 个人的45. normal adj. 正常的46. appointment n. 约定47. dentist n. 牙医48. put off/cancel/keep an appointment推迟/取消/守约49. social adj. 社交的50. guilty adj. 羞愧的51. oversight n. 疏忽52. ruin v. 毁坏53. relationship n. 关系54. psychologist n. 心理学家56. amount n. 数量，总数57. schedule n. 日程表58. forgetful adj. 健忘的59. meaning n. 意思60. regret n. 抱歉61. respond v. 回复62. deadline n. 截止日期63. show up 到场64. lead to 导致65. without regard to/for 不考虑高一上（新世纪版）Unit41. kingdom n. 王国2. vary v. 变化5. major adj. 主要的6. decoration n. 装饰物9. disappointed adj. 失望的disappointment n. 失望10. fall on 在（某一天）12. round off 使...圆满结束13. be connected with 与...有关14. have several weeks off 放几星期的假17. settler n. 移居者20. particular adj. 特定的21. packet n. 小纸包22. reunion n. 重聚23. specialize v. 专门从事24. feast n. 盛宴25. prosperous adj. 成功的26. occasion n. 时刻，时候27. solar adj. 太阳的28. calendar n. 日历29. renew v. 使更新30. fortune n. 运气；命运misfortune 不幸31. challenge n. 挑战32. theme n. 主题34. symbolize v. 象征35. view v. 看待（某事物）36. giant adj. 巨大的38. lower v. &adj. 降下；较下面的40. annual adj. 一年一度的41. parade n. （庆祝）游行42. spectator n. 观众43. enormous adj. 巨大的46. keep away 使...远离47. count down 倒计时牛津版高一（上）Unit 31. twist v. 蜿蜒曲折2. construction n. 建造3. magnificent adj. 壮丽宏伟的4. structure n. 建筑物5. base n. 底座；基础6. include v. 包括7. gallery n. 展览馆8. sculpture n. 雕塑10. historical adj. 历史的11. civilization n. 文明12. preserve v. 保护13. admit v. 准许进入14. scenery n. 风景15. landscape n. 风景16. attract v. 吸引17. reflection n. 映像18. remains n. 遗迹19. abandon v. 抛弃20. access v. 进入21. stadium n. 运动场22. hold v. 容纳23. empire n. 帝国24. ruin n. 废墟25. fall into ruin 成为废墟27. overlook v. 俯瞰29. wonder n. 奇迹高一上（牛津版）Unit 41. studio n. 演播室3. director n. 导演4. contestant n. 参赛者5. whisper v. 耳语6. faint v. 昏厥8. seat v. 使坐下9. rush forward 冲上前去11. cue v. （在表演中）提示12. clap v. 拍手14. terrific adj. 极好的；极棒的15. ahead of 领先16. tense adj. 紧张的；焦虑的17. beat v. 战胜19. trend n. 趋势20. surround v. 环绕21. achieve v. 获得；达到22. suspend v. 悬挂23. arrange v. 布置24. viewer n. 电视观众25. digital adj. 数码的26. record v. 将（声、像）录下高二上（新世纪版）Unit 31. determined adj. 坚决的2. experienced adj. 有经验的3. stubbornly adv. 顽固地4. frightening adj. 令人恐惧的5. trick n. & v. 欺诈6. bend v. 弯腰7. helplessly adv. 无助地8. mercy n. 仁慈10. count v. & n. 计数11. referee n. 裁判12. unwilling adv. 不情愿地15. at the cost of 以...为代价16. at the last instant 在最后一瞬间18. by the dozen 大量地21. all-round adj. 全能的23. kid n. 小孩24. junior adj. 青少年的；地位低的25. coach n. &v. 教练；训练28. discipline n. 纪律29. final adj. & n. 最后的；决赛30. rent n. & v. 租金；租借31. score n. &v. 得分35. lose heart 灰心37. apartment house 公寓大楼高二上（新世纪版）Unit 42. scale n. 规模；等级4. emperor n. 皇帝5. separate adj. & v. 分开的；使分离6. dive v. 跳水8. skate v. 滑冰9. ski v. 滑雪10. gold n. 黄金11. weight n. 重量weight lifting 举重12. determination n. 决心，坚决13. peak n. 顶峰14. amaze v. 使惊讶15. touch n. & v. 触摸17. continuous adj. 持续的18. understandable adj. 可理解的19. in terms of 就...来说；依据20. bring...to an end 结束牛津版高二上Unit 31. fashionable adj.时尚的2. illustrate v. 阐明3. bring along 带来4. object n. 物品5. a piece of clothing 一件衣服7. afford v. 买得起8. be keen on 对...着迷9. contest n. 比赛10. sight n. 名胜11. appreciate v. 欣赏12. search for 寻找13. cool adj. 酷的14. ruin v. 毁坏16. close down 关闭17. affect v. 影响19. extinct adj. 灭绝的20. go out of style 不再流行21. saying n. 格言22. uniform n. 制服23. public school 公立学校24. elementary n. 小学26. reduce v. 减少27. programme n. 计划，方案28. promote v. 促进29. link v. 联系30. be linked to 与...联系在一起32. decrease v. 减少33. peer n. 同龄人；身份地位相同的人34. pressure n. 压力35. academic adj. 学术的36. resistance n. 抵制37. complain v. 抱怨38. individuality n. 个性40. unlikely adj. 不太可能的41. adopt v. 采用42. nationwide adv. 在全国牛津版高二上Unit 42. car park 停车场3. tidy adj. 整洁的4. immediately adv. 立即5. staff n. 全体员工6. impress v. 给...极深的印象7. service n. 服务9. set up 建立10. expand v. 扩展11. launch v. 开始从事；发动12. branch n. 分支15. ownership n. 所有权16. stand for 代表17. detail n. 细节18. establish v. 建立19. import v. 进口20. as well as 也21. pack v. 包装23. no doubt 无疑地25. be likely to do 很有可能28. convenience store 便利店32. appliance n. 家用电器33. meet one’s needs 满足某人的需要34. range n. 一系列a wide range of 广泛的36. operate v. 运作。
杨浦五角场秋季班补习班最好的培训机构新王牌小学奥数资料(二)
第二讲 循环小数与周期性问题【本讲知识点】1、找出规律，发现周期现象，确定重复出现的元素的个数是几，周期就是几。
2、将题中要求的问题和某一周期的等式相对应，再运用一些简单的计算和分析求出答案。
【例题】1、计算：1÷7，小数点后面第100位上的数字是几？2、计算6÷7商的小数点后面1000个数字和是几？3、在循环小数∙∙4763822.0中，最少从小数点右面第几位开始到第几位为止的数字之和等于2020。
4、在小数1.80524102007上加两个循环点，能得到的最小的循环小数是多少？5、求3729143847⨯积的个位数字是几？6、下面是一个11位数，每3个相邻数字之和都是17，那么“？”处表示的数字是几？7、2007年1月1日正好是星期一，那么2007年6月1日是星期几？【课堂练习】1、计算：4÷7，并将结果用“四舍五入法”精确到小数后第100位，这第100位的数字是几？2、循环小数∙∙99912.0小数点后第100位上的数字是几？这100个数字的和是多少？3、在循环小数∙∙97406376.0中，最少从小数右面第几位开始，到第几位为止的数字之和等于2010？4、在循环小数∙17128156.2中的某一位数字上再添一个表示循环的点后，使得新的循环小数尽可能大或尽可能小。
5、求1113333322⨯积的个位数字是几？6、下面是一个11位数，每三个相邻数字之和都是15，你知道“？”表示的数字是几吗？这个11位数你能写出来吗？7、2009年3月1日正好是小明11岁的生日，是星期天，那么小明12岁生日时是星期几？【课后练习】1、计算9÷13，商的小数点后面第200位上的数字是几？2、循环小数∙∙945678312.0的小数点后第2006位上的数字是几？3、小数0.738231693450添上表示循环节的两个点，使其变成循环小数，已知小数点后第100位上的数字是3，这循环小数是怎样的？4、计算16÷37，商的小数点后2010个数字之和是多少？5、一个最简真分数7m ，化成小数后，如果从小数点后第一位起连续若干位的数字之和等于2004，求m 的值。
杨浦五角场恒高一对一补习班高三如何开始一轮复习
一轮复习一般称为基础复习阶段，很多学校都从高三开学就开始一轮复习，时间大约4~5个月，约占整个高三复习的一半时间左右。
一轮复习的主要对象就是基础知识，主要强调“全面”、“系统”两点，要构建知识框架和知识体系。
一般而言，复习障碍主要有：概念不清、公式不会运用、计算不准、原理模糊等等。
因此，不论平时多么熟悉课本，都不能省略复读课本这一环节，要逐章逐节、逐篇逐段，甚至逐字逐句地复习，做到毫无遗漏。
高三这一年里，既要学习新知识，又要复习旧知识，还要兼顾各学科的平衡、查漏补缺......为防止大家走弯路，下面整理了大家在一轮复习中容易掉入的9大误区。
大家有则改之，无则加勉！1. 埋头题海战术，忽略思考题海战术是大家最容易落入的“陷阱”！很多同学认为成绩提高不了，是因为题目做得不够多！古人都说，读书破万卷下笔如有神，所以埋首于题海自然是没错的，但是请问，你做得到高三一年破万卷书吗？如果，题海战术真的有用的话，那学校干脆直接一人发100斤的测试题卷，大家回家做题去好了，为什么要听三年的课？想要学会知识，必须通过老师的“点拨”和学生的“思考”，做题只是为了提高做题的熟练度和综合应用。
所以，盲目做题没有针对性，更不会有全面性。
一定数量的题目是需要做的，但做题的同时也要思考出题者的意图，通过其他方式如何考到同一知识点等等。
2. 否认老师复习计划，忽略课堂内容尖子生很容易犯这个错误，因为尖子生已经领先于很多人，而老师的课堂讲解多针对绝大多数学生的学习进程，所以尖子生理所应当地认为老师的讲解已经不适合自己了，其实不然！据调查发现，90%以上的高考状元最注重的都是课堂的听讲，而不是为赶进程在课堂上做其他科目的习题。
为什么呢？因为老师的授课有明确的目的和策略，既可能在引导你联系不同的知识，也有可能在反复强调易混易错的知识点。
所以，在课堂45分钟内要时刻保持着跟老师的思想交流，同时听课过程中不要好高骛远眼高手低，对于自己在预习过程中已经掌握的知识也应该仔细地听老师讲一遍，也许老师的理解更到位，或者你自己的理解有出入。
杨浦区最好高中补习班新王牌高考补习高中数学等比数列
杨浦新王牌等比数列【知识精要】1、等比数列的概念：如果一个数列从第二项起，每一项与它的前一项的比都等于同一个常数，这样的数列称为等比数列，这个常数叫做等比数列的公比。
2、通项公式：)0(11≠==--q qa qa a mn m n n = {12,,11=≥--n S n S S n n3、性质：1)、等比中项：)0(,,2>=⇒ab ab G b G a 成等比数列；问：①、“实数a,b,c 满足ac b =2”是“a,b,c 成等比数列”的 必要不充分 条件；②、“实数a,b,c 满足ac b =”是“b 为a 、c 的等比中项”的 既不充分也不必要 条件。
2）、q p n m a a a a q p n m ⋅≡⋅⇒+=+4、判定方法：1）、定义法：{})2,0(P .G 1≥≠=⇔-n q q a a a n nn 是； 2）、等价定义：{})0,2(P .G 11112≠⋅≥⋅=⇔+-+-n n n n n n a a n a a a a 是5、前n 项和公式：⎪⎩⎪⎨⎧==≠--11,1)1(,11q na q qq a n n S .【热身练习】1、在等比数列{}n a 中，===452,162,6a a a 则 54 。
2、已知数列{}n a 满足===++n n n a a a a 则,2,0211 1)2(2--⋅n 1 。
3、方程01322=+-x x 两根的等比中项为 22± 。
4、三个实数c b a ,,成等差数列，又成等比数列，则=c b a :: 1:1:1 。
115、若c b a 、、成等比数列，则函数轴的图像与x c bx ax y ++=2交点的个数 为 0 个。
【精解名题】例1、若数列{}n a 的通项公式为)(23*N n a n n ∈⋅=-，证明：{}n a 为等比数列，并指出该数列的首项与公比。
答案与提示：利用等比数列的定义进行证明。
杨浦补习班五角场恒高一对一走出高三题海
四个误区导致陷入题海误区1.用在学习上的时间越多成绩越好。
这是最大误区，保证学习时间并不能保证成绩。
不在于学了多少时间，而在于学会了多少。
不少高三学子“挑灯夜战”，经常熬到凌晨，此时大脑已经很疲劳，效率可想而知。
懂得劳逸结合、适时休息和锻炼的人，是高三学子中的智者，也是能否走出题海的标志。
误区2.课堂上听明白了就认为自己会了。
老师讲过的题目，考试时类似，可条件变一变，很多人就又不会了。
就像高考题，学生会觉得似曾相识，但不一定能考高分。
问题就在于“听明白了”是老师的讲授，学生听课时被动地接受，没有经过自己积极主动的思考。
因此，只知其然不知其所以然，貌似听明白了，碰到新问题新情境还是不会。
误区3.做习题追求答案，重结果不重过程。
一些学生做题，得出答案就结束了，没有反思，没有归纳，没有总结，没有举一反三，过分追求结果，不重视解题的思维过程。
其实，把思维过程整理和展示出来是学习的好方法。
要学会用慢镜头展示思维的关键处，学会用放大镜放大思维的细节。
平时在这些地方花时间“感悟”一下，使这种思维方法形成习惯，复习效果妙不可言。
误区4.题目做得多收获多，重数量轻质量。
不少学生潜意识中认为习题多做多得，其实不然。
反思一下，历届高三学子一年里要做多少题？有多少题目是白做的？这里要学会舍弃，偏题、难题、怪题对大多数学生来说要果断抛弃，要重视做题的质量而非数量。
走出题海的六种方法老师认为，提高深度思维能力，造就一个有强大分析能力的大脑，不论什么题目，就都能兵来将挡，水来土掩。
这种能力只有在思维训练中才能得到提高。
必须自己“悟”。
“悟”是一种深度思维的习惯，坚持多想一下，也许就会“顿悟”。
不妨从以下六方面尝试：1.编织知识网络“悟”的前提和基础是弄清基本概念和规律，编织系统和立体的知识网络，这也是高三复习的首要任务。
一道题不会做有两种情况，一是知识点不会，概念和规律的理解有漏洞；二是概念和规律都知道，但不会运用，这些都是要在做题中逐步补充完善的。