1．（2013•淄博）下列现象中，不能用惯性知识解释的是（）A．行驶的汽车总保持一定车距B．墙内开花墙外香C．推出的铅球离开手后继续向前运动D．拍打衣服使灰尘掉落2．（2013•株洲）用细线把很干净的玻璃板吊在弹簧测力计的下面，记住测力计的读数．使玻璃板水平接触水面，然后稍稍用力向上拉玻璃板，如图所示．则弹簧测力计的读数（）A．不变，因为玻璃板重力不变B．变大，因为玻璃板沾水变重了C．变小，因为玻璃板受到了浮力作用D．变大，因为玻璃板与水的接触面之间存在分子引力3．（2013•湛江）5月31日是“世界无烟日”，吸烟有害健康已成为同学们的共识，会议室里贴了如图所示的标志，这主要是考虑到在空气不流通的房间里，只要有一个人吸烟，整个房间就会充满烟味，这是因为（）A．分子在不停地运动B．分子间有引力C．分子间有斥力D．物质是由分子组成的4．（2013•永州）关于热现象，下列说法正确的是（）A．晶体在熔化过程中温度不变，内能也不变B．烧开水时，看到壶嘴冒出的“白气”是水汽化形成的水蒸气C．蒸发和沸腾都属于液化现象，都要放热D．打开香水瓶后远远地闻到香味，说明分子在不停地做无规则运动5．（2013•宜宾）生活中有许多实例或现象应用到了物理知识，说法正确的是（）A．汽油机在做功冲程中把机械能转化为内能B．调节手机铃声大小实际上就是调节声音的音调C．照相机是利用凸透镜成正立、缩小、实像的原理制成的D．体操运动员上杠前在手上擦一些镁粉是为了增大摩擦力6．（2013•盐城）用酱油煮鸡蛋，酱油的色素扩散到了鸡蛋内，这一现象表明（）A．色素分子间有间隙B．色素分子间存在引力C．色素分子间存在斥力D．色素分子在永不停息地运动7．（2013•烟台）我们的家乡环境优美，四季如画，国内外游客写下了许多赞美烟台景象的诗文．下列语句是我们从报刊杂志中摘录的，其中能说明分子永不停息地做无规则运动的是（）A．初春的果园鸟语花香B．盛夏的海滩微风轻抚C．深秋的塔山红叶纷飞D．隆冬的田野大雪茫茫8．（2013•雅安）有关分子热运动，下列说法正确的是（）A．液体很难被压缩，说明分子间有引力B．用手捏海绵，海绵的体积变小了，说明分子间有间隙C．有霾天气大量极细微的尘粒悬浮在空中，说明分子在做无规则运动D．在做墨水滴入水中的扩散实验中，我们看不到墨水的分子在运动9．（2013•湘西州）将两个铅柱的底面削平、削干净，然后紧紧地压在一起，这时两块铅就会结合起来，甚至下面可以吊一个重物都不能将它们拉开（如图）这一现象说明（）A．分子在做无规则运动B．分子间存在扩散现象C．分子间存在斥力来D．分子间存在引力10．（2013•咸宁）在如图所示的四种现象中，能体现“分子在不停息地运动”的是（）A．荷花飘香B．柳絮飘舞C．雪花飞扬D．落叶纷飞11．（2013•无锡）对下列现象的解释，正确的是（）A．打开香水瓶盖后，能闻到香味，说明分子在永不停息地做无规则运动B．封闭在容器内的液体很难被压缩，说明分子间有引力C．用手捏海绵，海绵的体积变小了，说明分子间有间隙D．铅笔笔芯用了一段时间后会变短，说明分子间有斥力12．（2013•宿迁）对于下面四幅图的理解，正确的是（）A．图甲中改变木板倾角α时，悬挂小球的细线总是竖直的，说明重力方向是一定的B．图乙中蹦床运动员在上升过程中，重力势能转化为动能C．图丙中房屋建在承受面积更大的地基上，是为了减小对地面的压力D．图丁中用鼻子嗅气味来鉴别醋和酱油，是因为醋分子是运动的，而酱油分子不运动13．（2013•苏州）形成雾霾天气的主要污染物是PM2.5．PM2.5是指直径数值小于或等于2.5的悬浮颗粒物，其直径大约是一般分子直径（数量级为10-10m）的2万倍，能被肺吸收并进入血液，对人体危害很大．下列关于PM2.5的说法正确的是（）A．PM2.5在空气中的运动属于分子的无规则运动B．PM2.5在空气中不受重力作用C．PM2.5中“2.5”的单位是nmD．PM2.5中“2.5”的单位是μm14．（2013•邵阳）今年农历四月，我市遂宁黄桑风景区举行了盛大的苗族“4.8姑娘节”庆典活动．现场：“鲜花漫山遍野，想起沁人心脾；群山云雾缭绕，游人如置仙境“．针对以上描述，下列说法正确的是（）A．“香气沁人心脾“说明分子在不停地做无规则运动B．“香气沁人心脾”说明分子静止不动C．雾的形成是一种凝固现象D．雾的形成是一种升华现象15．（2013•泉州）榴莲因其果肉香甜又富有营养，被称为水果之王．榴莲被切开后，其香味将很快充满整个房间，这一现象主要说明（）A．分子间存在引力B．分子间存在斥力C．分子间有间隙D．分子在永不停息地运动16．（2013•庆阳）医务人员工作时所采取的许多措施和使用的器材中，包含着许多物理知识，有关下列说法正确的是（）A．医生用听诊器接听患者心跳和呼吸声音，能升高音调B．注射时针筒能抽取到药液，是因为药液受到针筒的吸引力作用C．喷洒消毒液后，过一会儿病房里闻到消毒液的气味，这是扩散现象D．医生夹取消毒棉擦伤口的镊子是省力杠杆17．（2013•南通）下列现象中，不能说明分子处在永不停息的无规则运动中的是（）A．花开时香味扑鼻B．扫地时尘土飞扬C．红墨水在水中散开D．衣柜里的樟脑丸过一段时间变小了18．（2013•南京）下列认识正确的是（）A．固体和液体很难被压缩，是因为分子间没有空隙B．原子中原子核带正电，电子带负电C．当物体的温度降至0℃时，分子就停止运动D．破镜不能重圆，主要是因为分子间有排斥力19．（2013•内江）扩散现象的发生是由于（）A．分子在永不停息地做无规则运动B．分子之间有作用力C．分子间的斥力大于引力D．物质是由分子组成的20．（2013•牡丹江）“4.20”雅安地震牵动了全国人民的心，抗震减灾刻不容缓．下列说法不正确的是（）A．地震发生时伴有超声波B．废墟中自救时，用砖敲打墙壁，利用固体传声效果好C．闻到防疫消毒剂气味是扩散现象D．救援时用红外线生命探测仪探测生命迹象。
Welcome Unit语法填空I’m not outgoing so I’m a little anxious right now.I want to make a good first 1_____________(impress).Will I make any friends?What if no one talks to me?I just had my first maths class at senior high school!The class was difficult,2_____the teacher was kind and friendly.He even told us a funny story,and everyone laughed so much!I 3________(find)most of my classmates and teachers friendly and helpful.This afternoon,we had our chemistry class in the science lab.The lab was new and the lesson was great,but the guy next to me tried to talk to me the whole time.I couldn’t concentrate4_____the experiment.I 5________(real)wanted to tell him to please be quiet and leave6______(I)alone!What a day!This morning,I was worried that no one would talk to me.But I was wrong.I didn’t feel awkward or7_____________(fright)at all.I miss my friends from junior high school, but I believe I will make new friends here,and there’s a lot8____________(explore)at senior high school.I feel much9________________(confident)than I felt this morning.I think tomorrow will be10____great day!完型填空It was the first day of Senior High School.Camille,missing her Junior High school,was1 and a little frightened without her parents’2.At around10:00a.m,the campus was quite crowded.She was3,“What if I can’t register in time?”Looking for the place to register,she heard a4voice.“Do you need help?”She turned around,only to find a5standing there.“Yes,”she said awkwardly.He kept on talking,“I’m Andrew,a volunteer.Let me lead you.”After6,he helped Camille with her luggage(行李)and7her to the dormitory.On the way,Andrew8to two well-designed buildings,“This is the lecture hall where formal national exchange meetings are often9and the other is for doing experiments.They are often10from7a.m.to10p.m.”At last,they stopped at the dormitory building.He said to Camille,“Many wonderful things are waiting for you to 11.Good luck!”Camille said thank you and12him goodbye.Though left alone,Camille13making new friends like Andrew,whose good personalities had made a good impression on her.Besides,with the goal of14herself,she would concentrate on her study and take notes in class.She15believed her grades would be good through her efforts.1.A.calm B.anxious C.careful D.positivecation B.strategy pany D.nationality3.A.annoyed B.surprised C.disappointed D.interested4.A.female B.male C.familiar D.same5.A.teacher B.partner C.coach D.guy6.A.dinner B.work C.registration D.rest7.A.drove B.guided C.pulled D.recommended8.A.pointed B.listened C.shouted D.smiled9.A.flashed B.revised C.noted anized10.A.traditional B.colorful C.big D.open11.A.explore B.wish C.design D.play12.A.waved B.handled C.showed D.directed13.A.took care of B.made fun of C.kept up with D.looked forward to14.A.helping B.improving C.accompanying forting15.A.luckily B.suddenly C.confidently D.strangelyUnit1语法填空My name is Adam,a freshman at senior high school.1_______(go)from junior high school to senior high school is2_____really big challenge.The first week was a little 3___________(confuse).First,I had to think very carefully about which courses I wanted to take.The school adviser helped me choose the suitable ones.I know that Chinese is a very difficult language,but I hope to be fluent4________I graduate.My adviser recommended I sign up for advanced literature because I like English.I had to choose extra-curricular5__________(activity),too.I tried to join the school football team,6_____the coach told me that I didn’t play well enough. 7___________(obvious),I was unhappy,but I won’t quit.I joined a volunteer club instead. Every Wednesday,we hand out food to homeless people in the community.I’ll have to study harder and get used to being responsible8_____a lot more.I’m worriedabout9_________(keep)up with others in my advanced course,and it’ll be quite difficult to get used to all the homework.Still,I’m happy to be here and I’ll be well prepared for university or whatever else10_________(come)in the future.完型填空As a freshman,Joanna visited the gym where many clubs would enlist new members.She preferred to join some clubs suitable for her to1her life.Students were reading titles and contents of each club’s extra-curricular2.“Debate Club—Challenge yourself.”When Joanna read“3Club—Let your youth shine”,she stopped.Since teenager years,she had been4about dancing on the stage.With a disabled father,her mother, who5plates in a restaurant,had difficulty in supporting the family,let alone supporting her dream.Though6to dancing,she had no choice but to7 it.Without8,she chose the Ballet Club.The adult9for registration recommended,“10,you could sign up for one more club—the Volunteer Club. You can help11houses for the old or teach the poor kids to dance.”From then on,Joanna was a member of these two clubs.Despite her12schedule, she taught poor kids attracted to dance.Her guidance made a difference to these kids.Not only did they advance in dancing,but also13better and focused more on study.Even after she14and worked as an editor,she still taught them in her spare time.Some of them have15awards in dancing competitions,making Joanna’s face shine.1.A.enrich B.design C.impress D.explore2.A.greenhouses B.activities C.movements D.generations3.A.Adventure B.Ballet C.Literature D.Volunteer4.A.talking B.thinking C.worrying D.dreaming5.A.washed B.flashed C.improved D.broke6.A.exposed B.addicted C.accustomed D.opposed7.A.schedule B.give C.quit anize8.A.solution B.topic C.strategy D.confusion9.A.suitable B.eager C.responsible D.good10.A.Actually B.Obviously C.Formally D.Confidently11.A.set up B.bring up C.clean up D.blow up12.A.tight B.fluent C.awkward D.expert13.A.ate B.debated C.revised D.behaved14.A.concentrated B.advanced C.registered D.graduated15.A.took B.won C.exchanged D.foundUnit2语法填空A flight from Cusco takes you from the Andes into the Amazon rainforest.From there,you’ll spend one day travelling by boat to1______(you)accommodation.You can then spend three days exploring the rainforest with a local guide and enjoying the wildlife unique to the rainforest.The walking tour will take you on amazing2_______(path)through the Andes Mountains on the way to the city of Machu Picchu.After reaching your destination,you will have a day 3_________(explore)and be amazed by this ancient city.4____________(especial)amazing is the Incas’dry stone method of building.Inca5_________(build)cut stones to exact sizes so that nothing6_____________(need)to hold walls together other than the perfect fit of the stones.Spend four days7__________(enjoy)the unique Spanish and local Indian culture high in the Andes at Cusco,the capital8___the Inca Empire in the past.Stay in a local hotel,visit the museums,admire the architecture,enjoy the excellent local food,and go shopping at the local markets.Enjoy the beautiful countryside as you spend a day driving along the new highway connecting Cusco to Lake Titicaca.There,a boat will take you to a local Uros family on9______ island.Both the island10______the Uros homes are made of water plants from the lake.完型填空Martina is a tour st week she1a foreign package tour.Before the flight arrived,Martina had rented a car and2for her tourists,an old couple. Arriving at the hotel,she helped them apply for a room,made sure the3was satisfying and then left her4number.The next day,under Martina’s guidance,they went to their first5.Catching sight of the unearthed emperor’s tomb6by statues of soldiers,they both felt7at the unique architecture.The old lady didn’t8what it was and asked,“Is this a castle?”Martina9in fluent English that it was a graveyard(墓地)built for the emperor around150BC.Other than this,as the official English introduction typed on the brochure was10,Martina was requested to tell more details,such as the source of the civilization and what made up the powerful empire’s economy.She also11a hiking tour that afternoon.When walking on a narrow path to a flat site where different flowers grew, they were12excited at the view.It was time to say goodbye.After checking out,the old couple who admired her 13attitude and wide knowledge made a good14on Martina’s wonderful job, hoping she could be their15again next time.1.A.put up with B.signed up for C.took charge of D.looked forward toanized B.registered C.waited D.flashed3.A.soul B.improvement C.generation D.accommodation4.A.visa B.contact C.flight D.credit5.A.destination B.castle C.movement D.nation6.A.advanced B.explored C.surrounded D.impressed7.A.frightened B.amazed C.annoyed D.confused8.A.recognize B.transport C.doubt D.type9.A.debated B.revised C.explained D.lecture10.A.inactive B.unclear C.unsuitable rmal11.A.attracted B.exchanged C.packed D.arranged12.A.extremely B.officially C.finally D.actually13.A.warm B.confident C.awkward D.curious14.A.impression ment C.goal D.strategy15.A.senior B.designer C.editor D.guide。
1. 方程组31x y x y +=⎧⎨-=-⎩，的解是（ ）A ．12.x y =⎧⎨=⎩，B ．12.x y =⎧⎨=-⎩，C ．21.x y =⎧⎨=⎩，D ．01.x y =⎧⎨=-⎩，2.点M （-2，k ）在直线y =2x +1上，则k 的值是 . 3．二元一次方程21-=x y 有无数多个解，下列四组值中不是．．该方程的解的是（ ） A ．012x y =⎧⎪⎨=-⎪⎩ B ．11x y =⎧⎨=⎩ C ．10x y =⎧⎨=⎩D ．11x y =-⎧⎨=-⎩4）AB ．4C ．2D ．±45．若点)2(y P ，-与），3(x Q 关于y 轴对称，则x =__，y =___. 6．已知直线经过原点和P (-3，2)，那么它的解析式为______．7．若一组数据6，7，5，x ，1的平均数是5，则这组数据的众数为_______ 8．数据0，－1，1，－2，1，这组数据的众数是__________，中位数是________方差 __标准差 。
9．解方程组：38.53 4.x y x y +=⎧⎨-=⎩10．点A ，B ，C ，D 的坐标如图，直线CD ：y=121+-x 求(1)直线A B,(2) 直线AB 与直线CD 的交点坐标．1． 一长方形的一边长为cm 3，面积为212cm ，那么它的一条对角线长是 ． 2.已知一次函数的图象经过（-1，2），且函数y 的值随自变量x 的增大而减小，请写出一个符合上述条件的函数解析式 .3．已知点（－4，y 1），（2，y 2）都在直线y=－ 12x+2上，则y 1 、y 2大小关系是 （ ）A ． y 1 > y 2B ． y 1 = y 2C ．y 1 < y 2D ． 不能比较 4．算术平方根等于3的数是（ ）． A ． 9 BC ．3 D5、方程组⎩⎨⎧=+=-422y x y x 的解是（ ）A ．⎩⎨⎧==21y xB ．⎩⎨⎧==13y xC ．⎩⎨⎧-==20y xD ．⎩⎨⎧==02y x6．若点)123(-+a a M ，在x 轴上，则点M 的坐标为________.7.如果数据1、2、2、x 的平均数与众数相同，那么x 等于( ) .（A ）1 （B ）2 （C ）3 （D ）4 8.为了考查一个养鸡场里鸡的生长情况，从中抽取5只，称得它们的重量如下（单位：千克）：3.3，3.0，3.4，3.1，3.2，在这个问题中，样本方差2S ＝ 。
11. 十六年前的回忆1．认真拼读，准确书写军阀派了cán bào( ) 的便衣来检查。
他们像一群mó gu ǐ( ) 似的包围了我们。
母亲、妹妹和我被关进了j ū li ú su ǒ( ) 。
十几天后，我们在f ǎ t íng( ) 上见到了父亲。
那一面后，等来的是父亲被zhí xíng( ) 绞刑的噩耗。
2．按要求填空。
(1) “避”当“设法躲开”解释时，可组词为_________ ；当“防止”解释时，可组词为 _____ 。
(2) “散”有两个读音，在“母亲带她到儿童娱乐场去散步了”中读；它的另一个读音是 ___________________ ，可组词为___________ 。
3．结合课文，感受李大钊的人物形象，用“严”字组词填空。
在我们面前，他是一个慈祥而并不( ) 的父亲。
局势越来越( ) ，父亲的脸上总是一副( ) 的神情。
面对凶恶的敌人，父亲保持着他惯有的( ) 态度，即使面对( ) 拷打，他也要( ) 党的机密。
4．品读句子，完成练习。
(1) 父亲一向是慈祥的，从没有骂过我们，更没有打过我们。
我总爱向父亲问许多幼稚可笑的问题。
他不论多忙，对我的问题总是很感兴趣，总是耐心地讲给我听。
这一次不知道为什么，父亲竞这样含糊地回答我。
①对造成父亲前后态度不同的原因说法不正确的一项是( )A ．当时的局势十分严峻，不是同孩子谈心的时候B ．孩子还小，关于书籍文件落人敌人手里的后果不是几句话能说清楚的C ．反映了李大钊对待亲人慈爱和对待工作认真严肃两方面的统一D ．面对越来越紧张的局势，李大钊只顾着工作，无暇顾及孩子②用加粗词语写一句话。
(2) 父亲坚决地对母亲说不是常对你说吗我是不能轻易离开北京的你要知道现在是什么时候这里的工作多么重要我哪能离开呢母亲只好不再说什么了①给空白处加上标点符号。
②父亲对母亲说的话有两层意思：一是 ______________________ ；二是5．课文综合回顾。
