必修部分综合练习三
厦门市海沧区新阳学校历史必修3 综合练习
历史必修（III）期末复习练习题1、一定时期的文化，是一定时期什麽的反映：A、政治B、经济C、阶级斗争D、政治经济2、诸子百家泛指春秋战国时期数量众多的思想流派，主要四大家是：A、儒道墨法B、儒兵名法C、道农儒阴阳D、墨儒法纵横3、百家争鸣产生的原因是：①、铁器牛耕等生产力的发展导致社会大变革②、周王室的衰微为学术思想的自由发展创造了条件③、各诸侯国君主为称霸争雄，礼贤下士，寻求济世良策④、私学兴起，结束学在官府，促进思想学说的广泛交流传播A、①②③④B、①②③C、②③D、②③④4、以下主张明显体现春秋战国时期儒家思想的是：A.仁者爱人，为政以德B.万物虚无，祸福相倚C.兼爱非攻，节用尚俭D.以法为教，今必胜昔5、“道之以政，齐之以刑，民免而无耻；道之以德，齐之以礼，有耻且格。
”这段论述出自春秋战国时期的：A.儒家B.道家C.法家D.墨家6、“仁”的思想在先秦时期的进步意义主要是：A.满足新兴地主阶级的政治需要B.抑制统治者的暴政C.奠定“非攻”主张的思想基础D.成为各国变法的理论依据7、老子希望社会退回到小国寡民的状态，这在当时主要反映了：A.新兴地主的要求B.没落奴隶主贵族要求C.手工业者的要求D.富裕商人的要求8、“仁”和“礼”：“仁者爱人”、“克己复礼”“为政以德”有教无类、因材施教、实事求是、学思结合、坚持真理等是谁的主要思想？：A、孔子B、老子C、孟子 D墨子9、“道”是万物的本源,道生万物，辨证法思想：事物是矛盾对立的，但可以互相转化，“无为而治”等是谁的主要思想？：A、孔子B、韩非子C、老子 D墨子10、百家争鸣局面产生的根本原因是：A、社会大变革B、生产力的发展C、文化教育的发展D、言论自由11、关于孟子学说的评述，不正确的是：A、思想核心是仁政学说B、否认天命C、民贵君轻D、主张舍生取义12、下列关于荀子及其思想评价，正确的是：A、性本善B、先霸道、后王道C、是战国思想的集大成者D、与传统儒家思想完全一致13、在人与自然关系的主张上截然对立的思想家是：A、孔子和老子B、孟子和荀子C、荀子和庄子D、荀子和韩非子14、以下哪种观点不属于老子的主张：A“无为而治” B“守静” C“忠恕”之道 D“天法道，道法自然”15、孟子"民为贵"的主张：A．否定了君主制度 B．具有民主政治的性质C．适应了君主统治的需要 D．体现了当时民众的利益16、仁政学说是孟子思想的核心，其仁政的表现，不包括：A.重民思想B.民贵君轻C.天命是人们意志的表现D.君民平等17、关于墨子的思想，下列评述正确的是：A．主张兼爱，并把其称为“仁”，与孔子的“仁”完全一致B．主张非攻，提倡节俭等，反映了下层人民的要求C．否认上天和鬼神的存在D．战国时期成为显学，之后一直很受统治者重视18、儒家思想由春秋时期伟大思想家孔子创立，经过战国时期孟子、荀子的总结和改造，形成较为完整的儒家思想体系，儒家思想的主要内容是：A、仁者爱人B、仁政C、王道以德服人D、“仁”和民本思想19、春秋战国时期的“百家争鸣”是中国学术文化、思想道德发展的重要阶段，奠定了中国文化的基础，此后两千多年来的思想文化，大都可以从诸子百家中找到源头。
高中英语必修3外研版课时作业+综合练习打包18套综合检测(三)(2)
综合检测 (三)Module 3The Violence of Nature(满分： 120 分；时间100 分钟 )Ⅰ.单项填空 (共 15 小题；每题 1 分，满分 15 分)1．It is unfortunate that an earthquake ________ the city again. Some buildings were destroyed.A．struck B．arrivedC．ruined D．hurt2．(2013 烟·台高一检测 )There were ________15 people who lost their________ in the accident.A．at all；lives B．in all ；livesC．in all ；life D．at all；life3．—I heard David had been out of work for months.—Really！He had been looking for a new job，but ________ he wasalways turned ________.A．fortunately；down B．fortunately；upC．unfortunately；over D．unfortunately； down4．—Was it in France that you ________ French?—Yes，it was very wonderful to learn it in such a place.A．picked up B．took upC．turned up D．put up5．He is a man of ________ and he has a lot of interesting ________ in his life.A．much experience；experiencesB．many experience；experiencesC．many experiences；experiencesD．much experiences；experiences6．The driver was warned ________ after he drank.A．to drive not B．driving notC．not to drive D．not driving7．(2013 ·坊高一调研潍 )—Were his parents good to you when you were in Japan?—Sure.I ________ one of the family there.A．was treated asB．were treated likeC．had been looked on likeD．had been considered as8．It is helpful for children to form a good habit by asking them to ________ all the toys after they finish playing.A．put off B．put awayC．put up D．put out9．(2013 日·照高一质检 )—How ________ does your son attend the chess classes?—________，once per week.A．long， On the whole B．often；On averageC．soon；Generally speaking D．much；In all10． In spite of Tom's hard work，he ________ unsuccessfully after all.A．ended in B．ended withC．ended up D．turned out11．Does it ever ________ to you that your child would be punished for not passing the exam?A．strike B．occurC．happen D．appear12． I like the second football match ________ was held last week.A．which B．whoC．that D．/13． Great changes ________ in China since the introduction of the reform and opening policy.A．have been taken place C．took place B．have taken place D．were taken place14． Can you make sure ________ the gold medal?A．where Maria had put B．where had Maria putC．where Maria has put D．where has Maria put15．—Hi ， Mary， how are you getting on?—________A．No well ， I'm afraid.B．Good，how are you then?C．Very well，thanks，and you?D．Quite good，what about you?Ⅱ.完形填空 (共 20 小题；每题 1 分，满分 20 分)In our life ，we may meet different kinds of people.They may have a positive or a negative way to influence our __16__.An unforgettable person who influenced me the most and in a __17__ way was my grandfather.In my memory，my grandfather always __18__ his black glasses to read newspapers and books.Every time my brother and I went to his house，he always smiled and prepared our favorite fruit to __19__ us.Both of my parents are doctors，so they were always __20__ with work.My grandfather spent so much time __21__ us.He was like the second father to us.During the weekend，he took us to do different outdoor __22__ such as camping，climbing ，fishing ，and cooking.When I got hurt，he __23__ knew howto cure and make me feel better.He was my role model.He seemed to know __24__ and remained so positive when he __25__ different difficulties.I remember one time we lost our __26__ in the mountain.He was __27__ and made use of his knowledge and environment to find our way back home.He __28__ me to be strong and positive no matter what happened.__29__，wherever I am and whatever problems I __30__，I believe he will be there for me __31__ I need his help.My grandfather passed away a year ago.It was the saddest moment of mylife.Deep in my __32__，I know I have to be __33__ because he always believed in me and was sure I can do it and be successful.My grandfather was an unforgettable person who __34__ me to be strong，positive and never to __35__.16． A.dreams C．action17． A.different C．special18． A.wore C．carried19． A.wele C．congratulate 20． A.happy C．busy21． A.making fun of C．searching for 22． A.activities C．petitions23． A.never C．seldom24． A.everything C．everybody 25． A.settled C．faced26． A.luggage C．money27． A.scared C．excited28． A.encouraged C．forced29． A.Therefore C．Otherwise 30． A.look into C．change into B．jobsD．life B．positive D．strange B．dressed D．held B．teach D．shock B．concerned D．related B．chatting with D．taking care of B．advertisements D．tours B．always D．only B．something D．somebody B．overcame D．raisedB．keyD．wayB．calm D．pleased B．promised D．allowed B．However D．Besides B．run into D．break into31． A.whomever B．whicheverC．whenever D．whoever32． A.thought B．heartC．view D．memory33． A.strong B．honestC．intelligent D．lonely34． A.ordered B．forbadeC．required D．trained35． A.put up B．take upC．pick up D．give upⅢ.阅读理解 (共 20 小题；每题 2 分，满分 40 分)AAn AnnouncementIt was a small town which lay by the coast.Most people there lived by catching fish.The hurricanes often struck the area from July to October.Some of the people died on the sea when their boats were blown over by the high winds.So they paid much attention to the weather forecasts.They were afraid to meet with the hurricanes when they were catching fish on the sea.Each of the families had a radio and people always took them with themselves and listened to them at any time.It was September.A hurricane attacked the town one night.Plenty of trees were pushed over and all the electric and telephone lines were broken.People couldn't watch TV，or call their friends，or go to work.To their anger，they couldn't listen to the weather forecasts the Town Radio Station broadcast.The food and fresh water would soon be short and the patients couldn't be given medical care－no medicine could be carried there.People didn't know what would happen and they looked anxious.On the fourth day they read an announcement(通知 )on the Town Weekly.It was written，“ Recently we have to stop the weather forecast because of the bad weather.We usually get the forecasts from the airport.But the roads are all blocked by the fallen trees and stones.Whether or not we'll be able to broadcast the weather forecast tomorrow depends on the weather！”36．The people in the town often took radios with themselves because________.A．they felt lonely when catching fish on the sea and listened to the weather forecastsB．they were interested in the weather forecastsC．they couldn't watch TV on the seaD．they hoped to listen to some good news37． ________，so they paid much attention to the weather forecast.A．They hoped to escape from the hurricanesB．Some people died on the seaC．Hurricanes could push over the treesD．People in the town liked to talk about the weather38． The writer writes the passage mainly to ________.A．describe the importance of weather forecastB． give a news reportC．describe the bad effect of a natural disasterD．to warn people to be careful against hurricane39． After reading the announcement， the people were ________.A．encouraged B．happyC．excited D．disappointed40． In a word，________.A．the weather forecast would soon be broadcastB．the weathermen couldn't forecast the weatherC．the weather would soon be fineD．the weathermen felt sorryBAn earthquake happens when two plates rub together.The earth plates travel in different directions and at different speeds.If one plate is slowly forced underneath the other，pressure builds up until the plates break apart.This process causes the ground to move.It is an earthquake.In other words， earthquakes are the shaking of the earth's surface caused by the earth's rocky outer layer as a result of the energystored within the earth.The strain within the rocks is suddenly released(开释 )．The damage an earthquake causes depends on where it is and when it happens.If an unpopulated region is struck，there will be low loss of life or property.If it hits a large city，there may be many injuries and much destruction.Many of the areas at risk are largely populated now.Major earthquakes hitting those areas today could produce terrible damage.Actually ， there are several million small earthquakes every rge earthquakes such as the 1964 Alaskan quake that measured 9.2 on the Richter scale， cause millions of dollars in damage.In the last 500 years，millions of people have been killed by earthquakes around the world－including 240,000 in the 1976 Tangshan earthquake in China.A 60-second or less earthquake can cause devastation损坏( ) that continues for years after the first tremor (小震)．In 1972，a series of severe earthquakes struck Managua，Nicaragua.Fifteen years later，the city still looked the way it hada week after the earthquake hit，because the country did not have the money necessary to rebuild it.The shaking of the earth is sometimes not the greatest disaster.It is in the ensuing fires and floods that often the greatest damage occurs.In the 1906 earthquake，it was the fires caused after it that did the majority of the damage.An earthquake can also destroy dams high above a city or valleys，causing floods to sweep down and sweep away everything in their path.41． Which of the following is the main idea of the first paragraph?A．An earthquake es from inside the earth.B．The earth has great energy in storage.C．How the earth plates move.D．How an earthquake happens.42． How many examples are used in the passage to show the damage and destruction earthquakes cause?A．Three.B．Four.C．Five.D．Six.43． Which of the following is mentioned to show that an earthquake can kill toomany people?A．The 1964 Alaskan quake.B．The 1976 Tangshan earthquake.C．The 1972 Managua earthquake.D．The 1906 earthquake.44． The underlined word “ ensuing in” the last paragraph probably means________.A．causing too much heat and great damageB．causing many injuries and much destructionC．happening as a result of another eventD．happening suddenly and unexpectedly45． By giving the example in Paragraph 4， the author wants to show that________.A．an earthquake doesn't last longB．the damage can last longC．people in Managua suffered too muchD．Nicaragua is still a poor countryCModern zoos are different from those built fifty years ago.At that time zoos were places where people could go to see animals from many parts of the world.Animals lived in cages with iron bars.Although the zoo keepers took good care of them， many of the animals did not feel fortable，and they often fell ill.In modern zoos，people can see animals in more natural conditions.Animals are given more freedom in larger places so that they can live as they would in nature.Even the appearance of zoos has changed.There are trees and grass in cages，and water flows through the places the animals live in.There are few bars；instead，there is often a deep ditch，filled with water ，which surrounds a space where several sorts of animals live together as they would naturally.In an American zoo，the visitor can walk through a huge special cage that is filled with trees，some small animals and many birds and large enough for the birds to live naturally. In a zoo in New York， with the use of special night light ，people can observe certain animals that are activeonly at night，when most zoos are closed.Some zoos have special places for visitors to watch animals that live in the desert or under water.Modern zoos not only show animals to visitors，but also keep and save rare animals.For this reason，fifty years from now ，the grandchildren of today's visitors will still be able to enjoy watching these animals.46． It seems that ________ is something most important for animals.A．eating good foodB．living in cagesC．living with other animalsD．living in natural conditions47． In modern zoos ________.A．different kinds of animals are kept separatelyB．animals are no longer taken good care ofC．animals have more freedomD．visitors can walk wherever they like48． In a modern zoo ________ feel fortable.A．animals， not visitorsB．visitors ，not animalsC．neither visitors nor animalsD．both visitors and animals49． In some zoos people can ________.A．walk through huge special cages to watch all sorts of animalsB．see animals which live in special conditionsC．during the day observe animals that are active at nightD．watch all the rare animals that may not be seen in the future50． The main idea of the passage is that ________.A．zoos are now places where animals can live naturallyB．zoos are places where people can see animals from all over the worldC．there should be old and modern zoos alikeD．rare animals may soon die outDAutumn and winter are cold and flu seasons－when people are most likely to catch the viruses(病毒 )that cause influenza and the mon cold.Is the old advice true that dressing warmly will help prevent a cold ？Should you take medicine to reduce your temperature， or is it better to let the body treat the infection itself?Doctor Alvin ，a medical expert，knows a lot about cold and flu seasons in California.He says research may be just starting to provide evidence for the long held belief.For example， scientists for years doubted the idea that getting cold and wet might cause colds or flu.But recent studies have shown that low temperatures cause stress on the body.That stress can create conditions more inviting to viruses. So Doctor Alvin believes maybe it does make sense to dress warmly before going outside.And what about a fever？Doctor Nelson El Amin says if you have a fever，especially a high one，you should drink a lot of water，because it is important.A fever can easily make the body lack water，which does harm to your blood system.Besides，drinking boiled water can help the body fight against the fever and recover.Finally ，when should you treat a fever？ Doctor Nelson El Amin says a fever should be treated if it stays at forty degrees centigrade or above for a day or more.A high temperature can damage brain cells. The doctor also believes in treating a fever if it prevents a person from sleeping.Aspirin and other medicine can all be used to reduce pain and fever.But aspirin should not be given to children because it may have some side effects onthem.Also it's wise to keep your distance from people who have got flu in case that you might get infected.51． What is mainly discussed in the passage?A．What caused the cold and fever.B．How to deal with the cold and fever.C．Medicines that can cure the cold.D．Doctor Alvin's research work.52． According to Doctor Alvin ，________.A．the cold and flu are not caused by getting cold or wetB． getting cold or flu causes no stress on the bodyC．it is wise to dress warmly before going out in winterD．most scientists' ideas about the cold and flu are incorrect53 ． The underlined word“ inviting in” the second paragraph probably means“ ________．”A．attractive B．similarC．difficult D．different54． If you have a high fever，you should ________.A．eat a lotB．throw up what you eatC．eat some cold foodD．drink a lot of boiled water55． Which of the following is NOT true according to the passage?A．A fever does harm to your blood system.B．Treat a fever when it prevents you sleeping.C．Stay away from people who have got flu.D．Aspirin can be used to treat people of all ages.Ⅳ.阅读表达 (共 5 小题；每题 3 分，满分 15 分 )The Internet has opened up a whole new online world for us to meet，chat and go where we've never been before.But just as in faceto--face munication，there are some rules of behavior that should be followed when online.The basic rule is simple：treat others in the same way you would want to be treated.Imagine how you'd feel if you were in the other person's shoes.For anything you're about to send：ask yourself, “ Would I say this to the person's face？” If the answer is“ no，”rewrite and reread. Repeat the process till you feel sure that you'd feel fortable saying the words to the person's face.If someone in the chat room is rude to you， your instinct( 本能反响 ) is to fire back in the same manner.But try not to do so.You should either ignore that person，or use your chat software to block their messages.If it was caused by disagreement with another member，try to fix the situation by politely discussing it.Remember torespect the beliefs and opinions of others in the chat room.If you do decide to tell someone in the chat room about a mistake， point it out politely.At the same time，if you find you are wrong ， be sure to correct yourself and apologize to those who you have offended.It is not polite ________ such as their age，sex，and marital status.Unless youknow the person very well ， and you are both fortable with sharing personal information， don't ask such questions.56． What's the main idea of the passage？ (no more than 10 words)___________________________________________________________57Why should we ask ourselves“would I say this to the person'sface ？” when we are to send a message online？(no more than 20 words)___________________________________________________________.58． Please fill in the blank in the last paragraph to plete the sentence.(no more than 10 words)___________________________________________________________59． Which rule do you think is the most valuable one? Why？ (no more than 30 words)___________________________________________________________60． What other rules should we obey when chatting online besides thosementioned in the passage？(no more than 30 words)___________________________________________________________Ⅴ.写作(满分 30 分)在过去的几年中，屡次发生自然灾祸，如洪水、干旱、地震、飓风等。
【人教版】高中政治必修三练习：第3单元综合测试题(Word版-含答案解析)
《文化生活》第三单元综合测试题一、选择题(在每小题所给的四个选项中，只有一项是最符合题意的，每小题2分，共48分)1．朱相远在《中华世纪坛序》中写道：“洪水图腾蛟龙，烈火涅槃凤凰，文明圣火，千古未绝者，唯我无双；和天地共存，与日月同光。
”这说明中华文化具有A．博大精深的特征B．源远流长的特征C．神秘莫测的特征D．求同存异的特征2．据报道，牛津大学出版社双语词典项目经理朱莉·克里曼表示，“Tuhao”(土豪)、“Dama”(大妈)和“Hukou”(户口)等词语已经在牛津英语词典编著者的关注范围内。
如果这些词语的影响力持续的话，会考虑在2014年的更新中把它们加入词典之中。
这一现象表明①中文在全球影响力日益提升②英国人的文化自信心逐渐丧失③文化是对经济、政治的反映④文化现象无处不在，无时不有A．①③B．②③C．①④D．③④3．福建地处东南沿海，自晋唐以来，南渐的中原文化和闽越文化相融衍生，不同区域丰富的自然和人文资源滋养出闽南文化、客家文化、妈祖文化、闽都文化等区域文化，它们各具特色、异彩纷呈。
这从一个侧面体现了A．人们需要雅俗共赏的传统文化B．福建传统文化是中华文化的精华C．中华文化源远流长、博大精深D．我国各民族文化各具独特的个性4．“中华古籍保护计划”实施八年以来，全国各地陆续发现了一些史书典籍的新品种或新版本，深入发掘了一些史书典籍的学术价值。
下列有关史书典籍的说法正确的是A．史书典籍是中华文化源远流长的唯一见证B．史书典籍是中华文化一脉相传的重要见证C．史书典籍的出现标志着人类进入文明时代D．史书典籍是中华文明的重要标志5．2014年10月10日至13日，第三届中国非物质文化遗产博览会在济南举办。
各少数民族文化都是中华文化的瑰宝，博览会上的少数民族展厅别具特色，成为观众关注的焦点。
这表明①中华文化是共性与个性的统一②中华文化具有源远流长的特点③各民族文化的差异逐步消失④中华文化具有兼收并蓄的特点A．①②B．②③C．①④D．③④6．一把剪刀绘生活，剪纸是具有独特风格的民间艺术。
菱湖中学高一必修1必修4综合练习三
菱湖中学高一必修1必修4综合练习三班级 姓名_________ 1．已知全集(}.7,5,3,1{},6,4,2{},7.6,5,4,3,2,1{ A B A U 则===B C U ）等于 （ ） A ．{2，4，6}B ．{1，3，5}C ．{2，4，5}D ．{2，5}A2．函数)4tan(π+=x y 的单调增区间为（ ）A ．⎥⎦⎤⎢⎣⎡+-4,43ππππk k B ．)4,43(ππππ+-k k C ．⎥⎦⎤⎢⎣⎡+-2,2ππππk k D ．)2,2(ππππ+-k kB3．函数x x y 26ln +-=的零点一定位于的区间是( )A ．（0，1）B ．（1，2）C ．（2，3）D ．（3，4）C4、如果函数2()2(1)2f x x a x =+-+在区间(],4-∞上单调递减，那么实数a 的取值范围是 （ ）A 、3a -≤B 、3a -≥C 、a ≤5D 、a ≥5A5、函数，x y sin =和x y cos =，[]0,2x π∈都是增函数的区间是 （）A ．[0,]2πB ．[,]2ππC ．3[,]2ππ D ．3[,2]2ππA6．函数2(sin cos )1y x x =--是 （ ） A ．最小正周期为π的奇函数 B ．最小正周期为π的偶函数[来源:七彩教育网] C ．最小正周期为2π的奇函数 D ．最小正周期为2π的偶函数A7．若=-=-33)2lg()2lg(,lg lg yxa y x 则 （ ）A ．a 3B ．a 23C ．aD ．2aA8、 若定义运算b a b a b aa b<⎧⊕=⎨≥⎩，则函数()212log log f x x x =⊕的值域是（ ）A [)0,+∞B (]0,1C [)1,+∞D R A9．函数]1,0[在x a y =上的最大值与最小值的和为3，则=a （ ） A ．21 B ．2 C ．4 D ．41B10. 已知函数[]2,1,log 2)(2∈+=x x x f ，则函数)()(2x f x f y +=的值域为（ ）A ．[]5,4B ．]213,4[C ．]211,4[ D ．[]7,4C第Ⅱ卷（非选择题 共72分）二、填空题：本大题4小题，每小题4分，共16分. 把正确答案填在题中横线上. 11．函数24++=x x y 的定义域为 .),2()2,4[+∞---12. 设0≤x ≤2，则函数y ＝4x －12－3·2x ＋5的最大值是________，最小值是________．解析：设2x ＝t (1≤t ≤4)，则y ＝12·4x －3·2x ＋5＝122－3t ＋5＝12(t －3)2＋12.当t ＝3时，y min ＝12；当t ＝1时，y max ＝12×4＋12＝52.答案：52 1213.已知函数()sin()cos()f x x x =+θ++θ是偶函数，且[0,]2πθ∈，则θ的值为 ．4π14.已知sin cos 3αα-=,则cos(2)2πα-=3215．=+ 167cos 43sin 77cos 43cos _______________.21-16．若一次函数b ax x f +=)(有一个零点2，那么函数ax bx x g -=2)(的零点是 .21,0-17.函数()f x 的定义域为A ，若12,x x A ∈且12()()f x f x =时总有12x x =，则称()f x 为单函数．例如，函数()f x =2x +1(x ∈R )是单函数．下列结论正确的是_________．（写出所有正确结论的编号） ①函数2()f x x =（x ∈R ）是单函数；②若()f x 为单函数，12,x x A ∈且12x x ≠，则12()()f x f x ≠；③若f ：A →B 为单函数，则对于任意b B ∈，它至多有一个原象； ④函数()f x 在某区间上具有单调性，则()f x 一定是单函数． ②③三、解答题：本大题共5小题，共56分，解答应写出文字说明，证明过程或演算步骤.18.已知集合A ＝{x|2x －x －6≤0}，B={x|x －a ＞0}，当a 为何值时①A B ② A ∩B ≠φ ③A ∩B=φ19．已知函数)0,0)(sin()(πϕωϕω≤≤>+=x x f 为偶函数，图象上相邻的两个最高点之间的距离为π2．（1）求()f x 的解析式 ； （2）若 (,)32ππα∈-且1()33f πα+=，求 )352sin(πα+的值．解：（1） 图象上相邻的两个最高点之间的距离为π2,π2=∴T , 则12==Tπω. )s i n ()(ϕ+=∴x x f . ……………………………3分)(x f 是偶函数, )(2Z k k ∈+=∴ππϕ, 又πϕ≤≤0，2πϕ=∴．则x x f cos )(=． …………………………7分 （2）由已知得)2,3(,31)3cos(ππαπα-∈=+ ，)65,0(3ππα∈+∴．则 322)3sin(=+πα． (10)分∴924)3cos()3sin(2)322sin()352sin(-=++-=+-=+παπαπαπα． …………14分20．21．已知函数()2cos (sin cos )1f x x x x x =-+∈R ，． （1）求函数()f x 的单调递增区间； （2）将函数()y f x =的图象向左平移4π个单位，再将图象上各点横坐标伸长到原来的2倍，纵坐标不变，得到函数()y g x =的图象，求()g x 的最大值及取得最大值时的x 的集合．解：（1）π()2cos (sin cos )1sin 2cos 224f x x x x x x x ⎛⎫=-+=-=- ⎪⎝⎭． (4)分 当222242k x k Z πππππ-≤-≤+∈，（k ） 即384k x k ππππ-≤≤+∈，（k Z ）……6分 因此，函数()f x 的单调递增取间为 384k k ππππ⎡⎤-+∈⎢⎥⎣⎦，（k Z ） ………………7分（2）有已知，())4g x x π=+ (12)分∴当 sin()1224424x x k x k Z ππππππ+=+=+=+∈，即 ，也即 （k ）时，max ()g x =∴ 当24x x k Z ππ⎧⎫=+∈⎨⎬⎩⎭（k ） ，()g x ……………………………14分22.（本题满分13分）设函数()221f x x ax a =+--，[]0,2x ∈，a 为常数（1）求()f x 的最小值()g a 的解析式（2）在（1）中，是否存在最小的整数m ，使得()0g a m -≤对于任意a R ∈均成立，若存在，求出m 的值；若不存在，请说明理由 解：（1）对称轴x a =-① 当00a a -≤⇒≥时，()f x 在[]0,2上是增函数，0x =时有最小值(0)1f a =--…………2分 ②当22a a -≥⇒≤-时，()f x 在[]0,2上是减函数，2x =时有最小值(2)33f a =+…………2分 ③当0220a a <-<⇒-<<时，()f x 在[]0,2上是不单调，x a =-时有最小值2()1f a a a -=---…………2分 21,()120233a a g a a a a a a --≥⎧⎪∴=--<<--⎨⎪≤-+⎩…………2分 （2）存在， 由题知()g a 在1-,2⎛⎤∞-⎥⎝⎦是增函数，在1,+2⎡⎫-∞⎪⎢⎣⎭是减函数 12a =-时，m ax 3()4g a =-，…………2分()0g a m -≤恒成立m ax ()g a m ⇒≤，34m ∴≥-…………2分，m 为整数，m ∴的最小值为0…………1分。
人教版高中英语必修三unit3综合练习测试卷(含答案)
M3unit3Ⅰ.单词荟萃1．________n．出生地；故乡→________n．出生2．________n．小说；长篇故事→________n．小说家3．___________n．冒险→________ n．冒险家→________ adj.冒险的4．________ n．商人→________n．生意；商业5．________n．耐心→________adj.耐心的→________ adv.耐心地→________n．病人6．________vi.漫游；漫步；漂泊7．________vt. & vi.许可；允许→________ n．允许8．________vi.凝视；盯着看9._______vi.发现；认出→_______(过去式)→_______(过去分词) 10．________vt.寻找；探索→________ (过去式)→________ (过去分词)11．________adj.难以置信的→________vt.可信→________n．信仰→________adj.可信的12．________adj.粗鲁的；无礼的→________n. 粗鲁→________adv.粗鲁地Ⅱ.短语检测1．偶然地；意外地_________________2．衣衫褴褛__________________3．前进；往下说______________ 4．盯着看________________________5．导致；做出解____________ 6．与此相反，正相反_____________________7．冒险____________ 8．至于；关于_________________________9.打赌____________ 10.养育；抚养____________III、完成句子1．事实上，当他进入办公室时是偶然被保安发现的。
2．很多人去大城市追求幸福和成功而我想碰碰运气，在家乡开个公司。
人教版高中英语必修三综合练习
高中英语学习材料madeofjingetieji人教版新课标英语必修3综合练习— Unit 2 Healthy eating（学生版）重点词汇 protective balance strength digest combine debt diet lieweakness curiosity benefit glare consult limit sign重点短语get away with lose weight earn one ’s living tell a lie win …back cut down put on weight before long其它词汇 eggplant muscle pepper roast peach bean slim nut fry barbecue mutton hostess vinegar customer discount obesity fiber rawcooperation poisonous vitamin limited carrot garlic sigh spy重点语法 情态动词用法（下）Part 1 重点词汇（Ⅰ）1. To make member of a team perform better, the trainer first of all has to know their ________ and weaknesses.A. strengthsB. powerC. forceD. energ y近义词辨析（1）strength （2）power（3）force （4）energy2. Hearing what the secretary said, the chairman _________at her and showed unhappiness.A. glancedB. glaredC. stareD. notice 【近义词辨析】（1）glance （2）stare （3）glare3. If you want to learn skating, it ’s important to learn _________ yourself.A. to keep to balanceB. to keep balancingC. to keep skatingD. to keep to skate4. People have always been _________ about exactly how life on earth began.A. curiousB. excitedC. anxiousD. careful思维导图单元重点知识点5. Because of the small size of this primary school, it only admits a ________ number of children.A. limitedB. minimumC. certainD. confined6. The fresh air ________ our health and we ________ it.A. benefits to; benefitB. benefits; benefit fromC. benefits from; benefitD. benefits; are benefited by7. I’ll always be ________ to you for your help.A. in debtB. debtC. running into debtD. debts（1）get / run into debt （2）in debt（3）out of debt （4）be in debt to sb.8. The boy _________ to his mother that he _________ on the floor reading a novel.A. lied; liedB. lay; laidC. laid; layD. lied; lay（1）lie：撒谎，说谎（2）lie：躺，在于（3）lay：放置，产卵，下蛋9. Susan is on a special _______ to lose _________ weight.A. food; herB. diet; herC. food; /D. diet; /Part 2 重点词汇（Ⅱ）10. We feel safe with a _________________（保护的）device in the house.11. The postman asked me to _____________（签字，签名；手势，招牌，迹象，符号）for the letter.12. There is an inherent ____________________（缺点，弱点）in the design.13. I have _______________（消化；摘要）most of the important points in the book.14. Efforts and confidence _____________________（联合，使结合）to make a full man.15. 15. If you wish good advice, ___________________（咨询，请教，商量）an old man.Part 3 重点短语1. If you want _________________（减肥）you must eat less bread.（1）lose heart （2）lose one’s life （3）lose one’s temper（4）lose touch with （5）lose sight of （6）lose one’s balance（7）lose weight2. If you cheat in the exam, you’ll never _______________________（被放过，不受惩罚）it.（1）get on well with （2）get through （3）get up（4）get down to （5）get over （6）get away with3. In the old days, hunger, cold and illness _______________（消减，夺去……的生命）many of the villagers.（1）cut in （2）cut across （3）cut up（4）cut down （5）cut off （6）cut out4. You shouldn’t _________________（说谎）in front of the boss.5. The party must try to _______________（赢回，重新获得）the support it has lost.6. He began to ______________________（谋生）at the age of 18.7. It looks as if it will rain _____________________（不久）.8. Because of this, they _______________________（增加体重，发福）very easily.9. Mary ___________________（节食）and lost four pounds.10. It’s whispered that he is heavily ___________________（欠债）.阅读理解When I was a boy growing up in New Jersey in the 1960s, we had a milkman delivering milk to our doorstep. His name was Mr. Basille. He wore a white cap and drove a white truck. As a 5-year-old boy, I couldn’t take my eyes off the coin changer fixed to his belt. He noticed this one day during a delivery and gave me a quarter out of his coin changer.Of course, he delivered more than milk. There was cheese, eggs and so on. If we needed to change our order, my mother would pen a note —“Please add a bottle of buttermilk next delivery”— and place it in the box along with the empty bottles. And then, the buttermilk would magically（魔术般的）appear.All of this was about more than convenience. There existed a close relationship between families and their milkmen. Mr. Basille even had a key to our house, for those times when it was so cold outside that we put the box indoors, so that the milk wouldn’t freeze. And I remember Mr. Basille from time to time taking a break at our kitchen table, having a cup of tea and telling stories about his delivery.There is sadly no home delivery today. Big companies allowed the production of cheaper milk, thus making it difficult for milkmen to compete. Besides, milk is for sale everywhere, and it may just not have been practical to have a delivery service.Recently, an old milk box in the countryside I saw brought back my childhood memories. I took it home and planted in on the back porch（门廊）. Every so often my son’s friends will ask what it is. So I start telling stories of my boyhood, and of the milkman who brought us friendship along with his milk.1. Mr. Basille gave the boy a quarter out of his coin changer to __________.A. show his magical powerB. pay for the deliveryC. satisfy his curiosityD. please his mother2. What can be inferred from the fact that the milkman had the key to the boy’s house?A. He wanted to have tea there.B. He was a respectable person.C. He was treated as a family member.D. He was fully trusted by the family member.3. Why does home milk delivery no longer exist?A. nobody wants to be a milkman now.B. It has been driven out of the market.C. It’s service is getting worse.D. It is forbidden by law.4. Why did the author bring back home an old milk box?A. He missed the good old days.B. He wanted to tell interesting stories.C. He needed it for his milk bottles.D. He planted flowers in it. HomeworkPart 1单词拼写（周一、周二完成）1. He _________________（签名；手势，招牌，迹象，符号）his name on the check.2. The ________________（女主人，女主持人）made her guests comfortable.3. He said someone had ______________（说谎）but wouldn’t name names.4. Tolerance is one of her many ________________（优势，强项；力量，力气）.5. It’s not good for ladies to keep ___________（苗条的，纤细）at the cost of their health.6. We must ___________（限制，限定）our spending.7. I have _____________（受益，获益）greatly from extensive reading.8. If you are not busy Sunday, we’d love to have you both over for a ______________________（烧烤，烤肉）.9. “I wished I hadn’t had so much to do” , she ____________（叹气）.10. You may as well _____________（咨询，请教，商量）a doctor soon.11. His breath smelt of ______________（大蒜）.12. I’m on a ____________（饮食）as since I want to keep healthy.13. They stood there, ____________（怒视）at each other.14. As we all know, some mushrooms are ____________________（有毒的）.15. His favorite dish is ___________________（烤制的；烤，烘，烘烤）duck.16. We owe you a ________（债务）of gratitude for your help.（承蒙帮助，感恩不尽。
高中地理期末综合练习测试卷 中图版 必修3
图1图2图3高中地理期末综合练习测试卷 中图版 必修3本试卷分选择题和综合题两大部分，满分150分，考试时间120分钟。
注意事项：1、答卷前，考生务必将本人的学校、班级、姓名、学号、考试号填写在答卷密封线内。
2、答题均在答卷上按要求进行，在其它地方答题无效。
3、考试结束，请将答卷交给监考人员。
一、选择题（共70分）（一）单项选择题：本大题共20小题，每小题2分，共40分。
在每小题给出的四个选项中，只有一项符合题目的要求。
图1中数字表示太阳、地面、大气、宇宙空间之间的各种热力作用，读图回答1—2题。
1、代表大气对太阳辐射削弱作用的数字是 A ．① B ．② C ．③ D ．⑤2、能反映大气温室效应原理的数字是A ．①B ．②C ．④D ．⑤2006年5月18日,强台风“珍珠”在广东沿海登陆，台风中心附近最大风力达12级。
读图2（图中箭头表示台风移动路径）回答3—4题。
3、当台风中心位于图中N 位置时，珠江三角洲的风向最有可能是 A ．偏南风 B ．东南风 C ．偏北风 D ．西南风4、有人说台风是一种“小面积受灾，大面积受益”的气象灾害。
其“益”不．表现在A ．延长休渔期，保护渔业资源B ．解除或缓解旱情C ．增加水库蓄水量，利于水力发电D ．调节气温，降温消暑图3为沿我国106.5°E 线局部地区的地形剖面图， 读图回答5—8题。
5、图中②地形区为A ．华北平原B ．四川盆地C ．渭河平原D ．长江中下游平原6、关于③地形区地貌特点的正确描述是A ．冰川广布，雪山连绵B ．喀斯特地貌广布，地表崎岖C ．千沟万壑，支离破碎D ．远看是山，近看成川7、秦岭是我国重要的地理分界线，其地理意义表现在A ． 农耕区和畜牧区的分界线图6B ．亚热带季风气候区和温带季风气候区的分界线C ．400毫米年等降水量线经过的地区D ．渭河流域与汾河流域的分界线 8、有关①地形区自然环境的正确叙述是A ．人地矛盾十分尖锐B ．地势平坦，草原辽阔C ．水土流失严重D ．土地盐碱化严重图4中甲、乙、丙、丁分别代表世界著名的四大湖泊，读图完成9—11题。
高一物理必修三练习题
高一物理必修三练习题一、选择题A. 速度B. 力C. 加速度D. 质量2. 关于位移和路程，下列说法正确的是：A. 位移是矢量，路程是标量B. 位移和路程在数值上总是相等C. 位移的方向总是与路程的方向相同D. 位移的大小一定大于路程3. 在自由落体运动中，下列哪个物理量是不变的？A. 速度B. 加速度C. 力D. 质量二、填空题1. 物体在平直公路上做匀速直线运动，其速度为6m/s，运动了10秒，则物体的______（填“位移”或“路程”）为______米。
2. 一个物体从静止开始做匀加速直线运动，加速度为2m/s²，经过5秒，物体的速度为______m/s。
3. 重力加速度在地球表面附近约为______m/s²。
三、计算题1. 一辆汽车以20m/s的速度行驶，突然发现前方有障碍物，紧急刹车，加速度为5m/s²。
求汽车在停止前行驶的距离。
2. 一个物体从10m高空自由落体，不计空气阻力，求物体落地时的速度。
3. 一物体沿斜面向下做匀加速直线运动，初速度为5m/s，加速度为2m/s²，斜面长度为10m。
求物体滑到斜面底端的时间。
四、实验题1. 设计一个实验，验证牛顿第二定律。
2. 如何利用打点计时器测量物体的速度和加速度？五、综合题（1）抛物线运动的物体在空中受到的合力是什么？（2）为什么火车在启动时，需要较长的铁轨？2. 一物体在水平地面上受到两个力的作用，一个向东，大小为10N；另一个向北，大小为15N。
求物体的合力及合力的方向。
六、判断题1. 物体在做匀速圆周运动时，其速度大小是不变的，但方向在不断改变。
（）2. 在平抛运动中，水平方向上的位移与时间成正比。
（）3. 一个物体受到的合外力为零时，它一定处于静止状态或匀速直线运动状态。
（）七、作图题1. 请画出物体做匀加速直线运动的速度时间图像。
2. 请画出物体在水平面上做匀速圆周运动的示意图，并标出向心力的方向。
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必修部分综合练习三（2014-12-24）1.下列不属于酵母菌和大肠杆菌共性的是A.都含有8种核苷酸B.都能进行有氧呼吸C.细胞中的染色体（质）均可以被碱性染料染色D.都含有细胞壁和核糖体。
2.对右图的理解错误的是A.图一中生长素含量D ＞C ，B ＞AB.图二小麦幼苗的茎向圆心方向生长C.图一、图二均能体现生长素作用的两重性D.图二发生了生长素的极性运输，而图一未发生3.对真核细胞呼作用的叙述错误的是A.乳酸、酒精、[H]的生成只发生在细胞质基质中B.生成乳酸和酒精的阶段没有热能的散失C.人生在剧烈运动时产生的2CO 只来源于线粒体D.人体细胞进行有氧呼吸产生的2CO 比无氧呼吸产生的多4.下列关于某正常果蝇（基因型为BbT ）增殖过程的描述正确的是A.该果蝇为雄性，减数分裂过程中B 、T 基因的遗传不一定符合自由组合定律B.该果蝇细胞进行有丝分裂时，后期细胞中有4对同源染色体C.若某时期果蝇细胞中无基因T ，该细胞可能是次级精母细胞D.若该果蝇有一个染色体组成为T tX X Y 的后代，一定是该果蝇减数第一次分裂异常所致5.某地原有一年生群体都是顶花生（aa ）,由于引入腋生花AA 和Aa 的种子，现在群体基因型频率变为55%AA 、40%Aa 、5%aa 。
下列对该过程的分析不合理的是A.原来种群的A 基因频率为0，现在种群的A 基因频率为75%B.基因频率发生变化是自然选择的结果C.若该植物是自花传粉，3年后基因型频率不变D.基因型频率的改变不能说明物种在进化6.右图为某镰刀形细胞贫血症患者体内基因对性状的控制过程，分析可知A.基因1和基因2可以在同一个细胞中表达B.图中①②过程发生在细胞核中，进行①②过程的细胞不能进行有丝分裂C.患者患病的根本原因是基因2的碱基排列顺序发生了改变D.与正常细胞相比，细胞衰老时，1mRNA 发生改变而2mRNA 不发生改变7．下列关于ATP 和酶的说法正确的是A ．产生酶的细胞一定能产生ATPB ．ATP 含有核糖结构，酶一定不含该结构C．酶的催化作用都需要ATP提供能量 D．人体成熟的红细胞既能产生酶又能产生ATP 8．下列关于实验的说法正确的是A．马铃薯块茎捣碎后的提取液中不能检测出蛋白质B．在“探究酵母菌细胞呼吸方式”实验中，用澄清石灰水可准确判断其呼吸方式C．将叶绿体色素的提取液放于自然光和三棱镜之间，在屏幕上的连续光谱中变暗的是红光和蓝紫光区域D．用药物阻断蛙屈肌反射弧的神经中枢，刺激传出神经，肌肉不能收缩9．下列关于化合物的叙述，正确的是A．淀粉和纤维素都是储能物质，因为它们都属于多糖B．葡萄糖、胰岛素、淋巴因子都属于人体内环境的成分C．摄入人体的N元素主要用于构成核酸中的含氮碱基D．抗体、激素、tRNA发挥一次作用后都将失去生物活性10．如图为某人血糖调节的部分过程，抗体1和抗体2都能与相关受体结合导致调节异常，下列说法错误的是A．葡萄糖和胰岛素作用于相关细胞都是通过与细胞表面的受体结合完成的B．两种抗体都能引起血糖浓度升高，这在免疫学中称为自身免疫病C．两种抗体引起血糖升高都可以通过注射胰岛素缓解症状D．由图看出糖尿病并不都是胰岛素分泌不足造成的11．科学家在研究中发现，给小鼠喂养某种食物后，在小鼠的血清中检测到了来自该食物的微小RNA，这种RNA虽然不能编码蛋白质，但它可以与小鼠Lin-4基因产生的mRNA结合，并抑制它的功能，最终引起机体患病。
下列说法正确的是A．微小RNA与小鼠mRNA的结合很可能借助细胞内DNA连接酶的作用B．微小RNA不能编码蛋白质，很可能是因为它缺乏终止密码子C．Lin-4基因所产生的mRNA在细胞中的功能是产生某种酶D．微小RNA是通过阻止Lin-4基因的翻译过程来抑制该基因的功能12．下图表示某家系中有甲（相关基因为A、a）和乙（相关基因为B、b）两种单基因遗传病，其中一种是伴性遗传病。
相关分析不正确的是A．甲病是常染色体显性遗传、乙病是伴X隐性遗传 B．Ⅱ3的基因型一定是AaX b Y C．若Ⅲ 3与Ⅲ 7结婚，生一患病孩子的几率是1/4 D．Ⅲ6的致病基因来自于I 1 13．下列关于细胞结构的说法中，正确的是A．能形成囊泡的细胞结构只有内质网和高尔基体B．DNA聚合酶和RNA聚合酶等大分子物质可以通过核孔进入细胞核C．细胞核是储存和复制遗传物质DNA和RNA的主要场所D．植物细胞的边界是细胞壁，动物细胞的边界是细胞膜14．图甲表示在二氧化碳充足的条件下，某植物光合速度与光照强度和温度的关系，图乙表示某植物的非绿色器官在氧浓度为a、b、c、d时，CO2释放量和O2吸收量的关系图，以下说法正确的是A．由图甲可知，光合作用的最适温度为30℃B．当温度为20℃、光照强度小于8千勒克司时，限制该植株光合速度的因素是温度。
C．由图乙可知，在a、b、c、d四浓度中,最适合该植物器官储藏的氧浓度是d。
D．若细胞呼吸的底物是葡萄糖，则在氧浓度为b时，厌氧呼吸消耗葡萄糖的量是需氧呼吸消耗葡萄糖的量的5倍。
15．酸碱物质在生物实验中有广泛的应用，下面有关实验中，表述正确的是A．斐林试剂中，NaOH为CuSO4与还原糖的反应创造碱性条件B．浓硫酸为溴麝香草酚蓝与酒精的显色反应创造酸性环境条件C．双缩脲试剂中，NaOH为CuSO4与蛋白质的反应创造碱性条件D．盐酸水解口腔上皮细胞可改变膜的通透性，加速健那绿进入细胞将DNA染色16．弥漫性毒性甲状腺肿是一种常见的甲状腺疾病，患者血液中存在与促甲状腺激素受体结合的抗体，该抗体具有类似促甲状腺激素的作用，同时不会被甲状腺激素所抑制，由此可知A．弥漫性毒性甲状腺肿是一种过敏反应B．患者体内的甲状腺激素比正常人含量高C．该抗体是由浆细胞合成并分泌的，受体细胞是垂体细胞D．弥漫性毒性甲状腺肿患者体内甲状腺激素的分泌有分级调节，也有反馈调节17．现代生物进化理论认为：种群是生物进化的基本单位，下列有关种群及进化的叙述不正确的是A．自然选择直接作用于个体的表现型，并决定了生物的进化方向B．在没有自然选择的情况下，种群的基因频率仍然可能发生改变C．研究种群“S”型增长曲线在控制有害动物的应用时，人们发现种群数量控制在“K/2”值左右最有效D．种群研究的核心问题是种群数量的变化规律18．以下有关基因重组的叙述，错误的是A．非同源染色体的自由组合导致基因重组B.非姊妹染色单体的交换引起基因重组C．纯合体自交因基因重组导致子代性状分离D.同胞兄妹间的遗传差异与父母基因重组有关19．某种雌雄同株植物的花色由两对等位基因(A与a、B与b)控制，叶片宽度由等位基因(C 与c)控制，三对基因分别位于不同对的同源染色体上。
已知花色有三种表现型，紫花(A B )、粉花(A bb)和白花(aaB 或aabb)。
下表是某校的同学们所做的杂交试验结果，B．乙组杂交两亲本的基因型为AABbCc和aaBbCcC．若只考虑花色的遗传，让“乙组”产生的全部紫花植株自花传粉，其子代植株的表现型共有3种，其比例为紫花：粉花：白花=9:3:4D．丙组杂交F1中粉色宽叶的基因型为AAbbCc和AabbCc，且其比例为1:2.20．人被犬咬伤后，为防止狂犬病发生，需要注射由灭活狂犬病毒制成的疫苗。
疫苗在人体内可引起的免疫反应是A．刺激效应T细胞分化成为记忆细胞B．刺激吞噬细胞产生抗狂犬病毒抗体C．可促进效应B细胞释放出淋巴因子D．产生与狂犬病毒特异性结合的抗体21．下列关于人体内环境及其稳态的叙述，正确的是A.葡萄糖以自由扩散方式从消化道腔中进入内环境B.H2CO3/NaHCO3对血浆pH相对稳定有重要作用C.内环境的温度随气温变化而变化D.人体内的内环境即指体液22．下列关于生态系统稳定性的叙述，错误的是A．在一块牧草地上播种杂草形成杂草地后，其抵抗力稳定性提高B．在一块牧草地上通过管理提高某种牧草的产量后，其抵抗力稳定性提高C．在一块牧草地上栽种乔木形成树林后，其恢复力稳定性下降D．一块牧弃耕后的牧草地上形成灌木林后，其抵抗力稳定性提高23．为研究人工生态系统中大草履虫和栉毛虫间捕食关系的影响因素，设计两组实验；实验一：在培养液中依次加入大草履虫和栉毛虫，得到种群数量变化曲线(见甲图)；实验二：在培养液中先加入沉渣作隐蔽场所，再同时加入大草履虫和栉毛虫，得到种群数量变化曲线(见乙图)。
据实验判断，正确的是A．沉渣对栉毛虫的种群数量变化无影响 B．大草履虫以栉毛虫为食C．培养液为上述生态系统提供能量D．大草履虫的能量除用于自身代谢外，其余部分流入栉毛虫24.（9分）图1表示绿藻叶肉细胞的光合作用过程图解；图2表示在pH和温度保持适宜的条件下，将绿藻叶肉细胞悬浮液放入密闭的容器中，给予不同条件时细胞悬浮液中溶解氧浓度变化。
（1）图1的场所I为场所II提供的物质乙为。
（2）在图2中B处给予适宜光照，溶解氧发生如图所示变化，则图1中物质甲来源于，光照后短时间内物质丙含量的变化是。
（3）在图2中B处给予适宜光照后，溶解氧浓度增加，原因是；3分钟后不再增加而稳定，原因是。
（4）若在C处给予某条件，使溶解氧的变化如图中的a，则该条件可能是，a 情况下绿藻叶肉细胞光合作用制造葡萄糖的速率是b情况下的倍。
25.（10分）图甲中a部位为神经纤维与肌细胞接头（突触的一种），图乙是a部位的放大图。
乙酰胆碱（ACh）与肌肉细胞膜上的受体结合，会引起肌肉收缩。
将2个微电极置于图中b、c两处神经细胞膜外，并与灵敏电流计正负两极相连，刺激e处，肌肉收缩且电流计指针偏转。
（1）刺激e处，e处膜外电位的变化是，依据所观测到的电流表指针偏转情况，绘制出的电流变化情况曲线是下图中的。
（2）在b、c、d、e、f点处施加刺激，能够证明兴奋在神经纤维上双向传导的是点。
刺激d处，兴奋传到b处的速度，比相同强度刺激e处兴奋传到b处的速度慢，说明在脊柱中存在结构。
（3）实验证实，只刺激肌肉，肌肉也会收缩，推测此时电流计指针是否偏转？，原因是。
图乙中会被自身产生的抗体免疫导致重症肌无力。
如果刺激e处，电流计指针发生偏转，但肌肉无反应，如何通过实验进一步探究损伤部位是肌肉还是a处？写出实验方案：。
26.（10分）图1是某草原生态系统中碳循环模式图，图中甲乙丙表示生态系统的成分；图2为能量流经某种群的示意图。
请据图回答：（1）图1中甲和乙之间碳的传递形式是。
（2）图1中鹰和蛇的种间关系为，鹰的营养级为。
（3）如果鼠种群的死亡率较高，则鼠种群数量一定会下降吗？，试分析原因：。
（4）若图2为能量流经蛇种群的示意图，其中的A表示蛇的摄入量，那么C表示蛇的。
而要保证蛇的能量需求，其生存领地的相关植物所固定的能量至少应达到B的倍。
27.（12分）右图为果蝇染色体组成。