八年级下目标检测答案
八年级下学期期末目标检测物理试题附答案
本卷满分100分，考试时间90分钟注意事项1、用黑色的签字笔将答案答在答题卡上，试卷上无效。
2、本试卷分为Ⅰ卷选择题和Ⅱ卷非选择题。
3、本试卷一律g=10N/kg。
Ⅰ卷选择题一、选择题（每小题3分，共36分。
）1、一个鸡蛋的质量约是50（）A、tB、kgC、gD、mg2、使重10N的物体在水平桌面上做匀速直线运动，已知拉力是2N，则物体受到的摩擦力大小是（）A、12NB、10NC、8ND、2N3、根据动物的身体结构特点中，以减小压强来适应自然环境的是（）A、啄木鸟有尖的喙B、鲨鱼有锋利的牙齿C、蚊子有尖尖的口器D、骆驼有宽大的脚掌4、如图1所示的四种情景中，人对物体做功的是（）5、下面哪一个现象的描述能说明分子在不停地做无规则运动（）A、春天柳枝摇曳B、夏天荷花飘香C、秋天落叶纷飞D、冬天瑞雪飘飘6、关于平衡力，下列说法正确的是（）A、物体在平衡力作用下一定保持静止状态B、作用在物体上的两个力三要素完全相同，这两个力一定是平衡力C、物体受到重力和拉力的作用,这两个力方向相反，它们一定是平衡力D、运动的物体在平衡力作用下，一定保持匀速直线运动状态7、探究物体沉浮条件时，小明把一块石头和一块木块放入水中，这是观察到石头下沉到水底、木块漂浮在水面上，下面说法正确的是（）A、木块受到的浮力大于石头受到的浮力B、木块受到的浮力大于木块受到的重力C、木块受到的重力小于石头受到的重力D、石头受到的浮力小于石头受到的重力8、某市部分松林发生虫灾。
为了灭虫，市政府多次调动直升飞机在重灾区上空喷洒生物农药。
当飞机在某一高度水平匀速飞行，喷洒农药的过程中，飞机的（）A、动能减小，重力势能减小B、动能不变，重力势能不变C、动能减小，重力势能增大D、动能增大，重力势能减小9、潜水员在水面下不断下潜的过程中，受到的压强和浮力的变化情况是（）A、压强不变，浮力变大B、压强变小，浮力变小C 、压强变大，浮力不变D 、压强变大，浮力变大10、如下图所示，是各式各样剪刀的示意图，它们都是一对对的杠杆。
八年级(下)数学教学目标检测题(二)
八年级（下）数学教学目标检测题（二） 班级 姓名 得分《第十八章：函数及其图象》一、选择题：（每小题3分，共36分）1、下列说法中，错误的是（ ）A 、在S=兀r 2中，S 是r 的正比例函数B 、在y=x 2中，y 是x 的函数，但x 不是y 的函数C 、代数式3x －1是x 的函数D 、y=x 与y= 是同一函数 2、如果点A （a ，b ）在第二象限内，那么点B （b-a ，-a 2）在第（ ）象限内。
A 、一B 、二C 、三D 、四3、函数y= 中自变量x 的取值范围是（ ）A 、x ≥-1B 、x ＞1C 、x ≠1D 、x ≥-1且x ≠14、一根蜡烛长20cm ，点燃后每小时燃烧5cm ，燃烧时剩下的蜡烛长度y （cm ）与燃烧时间x （小时）之间的函数关系可用下列图象中的（ ）表示。
5、已知反比例函数y= 的图象位于二、四象限内，那么一次函数y=kx+b 的图象经过（ ） A 、第一、二、三象限 B 、第一、二、四象限C 、第一、三、四象限D 、第二、三、四象限6、若一次函数y=kx ＋b 的图象经过点A （1，0）和B （0，-1），则该函数的解析式是（ ）A 、y=x ＋1B 、y=-x ＋1C 、y=x －1D 、y=－x －17、如果一次函数y=3x ＋b 的图象与两坐标轴围成的三角形面积为6，则b 的值是（ ）A 、±6B 、±3C 、6D 、333x 11-+x x x k8、已知一次函数y=（a －3）x ＋(a －2)的图象与y 轴的交点位于x 轴的上方，则a 的取值范围是（ ）A 、a ＞3 C 、a ＜2 D 、a ＞2且a ≠39、已知函数y=（2m 是反比例函数，且当x ＜0时，y 随 x 的增大而增大，则m 的值是（ ）A 、1B 、-1C 、1或-1D 、小于-1的所有实数10、已知点P 的坐标是（3，4），点Q 与点P 关于原点对称，则P 、Q 两点间的距离PQ=（ ）A 、5B 、6C 、8D 、1011的顶点O 、A 、C 的坐标分别是O（0，0）、A （3，0）、C （1，2），则点B 的坐标是（ ）A 、（3，2）B 、（4，3）C 、（4，2）D 、（3，3）12、如果一次函数y=m －x 与y=mx －4的交点在x 轴的负半轴上，那么m=（ ）A 、－2B 、2C 、4D 、－4二、填空题：（每小题3分，共36分）13、表示函数关系的常用方法有 、 、 。
八年级第二学期语文目标检测(朝阳区)答案
16 云南的歌会【记忆再现】1・ jd hd pl xl hul hul xlng yl gu2. D3.沈从文作历史文物《边城》【牛刀小试】1.D2.示例：令人陶醉的西湖，青山、秀水、使万千游客乐不思蜀。
令人神往的黄山，奇松、怪石，让多少游人牵肠挂肚。
【文苑漫步】1.⑴三长两短⑵纸上谈兵⑶放任自流⑷望眼欲穿2. 宋江张顺宋江张顺李逵【课文品读】1.主要介绍了“云南的歌会”中“金满斗会”的盛况。
2.演唱方式：百多人集合在一起，六人围坐一桌，轮流低唱歌曲。
演唱内容：轮流低声唱《十二月花》，和其他本地好听曲子。
举行目的：集会表而说是避疫免灾，主要作用还是传歌。
3.因为在歌会上，老年人将记忆中充满智慧和热情的东西，全部传给下一辈。
看到下一辈熟悉了，心里髙兴。
4.用形象的比喻，将无形的声音比作有形的松涛，刻画出声音虽小但雄浑有力、气势恢弘的特点。
【美文赏析】1.衬托了湖水的奇淸。
2.星云湖因湖水奇淸，像仙人伸手摘下一片星星白云撒进湖里一样而得名：抚仙湖则因水的淸奇能使天宫神仙痴迷于美景，乐而忘返，幻化成抚仙石立于湖畔而得名。
3.针对两湖“鱼虾不共游”的现象所说的。
17端午的鸭蛋【记忆再现】1. mOi jl ydn ndng xidn yin sii hudng2. hudng惶急di大抵hudng辉煌di砥柱中流3.⑴分别指晋朝车胤和孙康利用萤火虫的光和雪的反光刻苦读书的故事。
⑵与之同感荣耀。
4.汪曾祺散文家【牛刀小试】1 .⑴观⑵也⑶扑2.(1)对，牛弹琴。
(2)拍摄失败，不能使人们喜欢。
【文苑漫步】1.示例：艺髙胆大武松猛打虎2. C3.李俊卢俊义关胜【课文品读】1.高邮咸蛋的特点是质细而油多。
蛋白柔嫩，不似别处的发干、发粉，入口如嚼石灰。
2.引用这段文字，既介绍了高邮咸蛋的特点和吃法，又增添了文章的情趣。
3.示例：①我对异乡人称道髙邮鸭蛋，是不大高兴的，好像我们那穷地方就岀鸭蛋似的！②我疋的地方不少，所食鸭蛋多矣，但和我家乡的完全不能相比！③我在北京吃的咸鸭蛋，蛋黄是浅黄色的，这叫什么咸鸭蛋呢！4.虽然文章记叙的是最普通不过的"端午的鸭蛋”，但字里行间却流淌着浓浓的故乡情。
八年级下朝阳区目标与检测--单项选择重点+答案
八下朝目单项选择( )1．Don’t be shy. Try English as much as possible.A. speakB. spokeC. speakingD. to speak( )2.Bob enjoys playing computer games. he all his free time on it.A. takesB. spendsC. costsD. pay( )3.I will help my mother the pet dog while she is abroad.A. look afterB. look throughC. look intoD. look like( )4.The girl is too young. Don’t make her the piano all the time.A. practicesB. practicingC. practiceD. to practice( )5.How can I make friends in a new school?Say hello to today, and you can have a friend tomorrow.A. new someoneB. someone newC. new anyoneD. anyone new （）6. Let’s do . We have already played the game for two hours.A. everythingB. new nothingC. something newD. new anything（）7. ---- Did you spend a lot of time computer games?----Yes, I did.A. playB. to playC. playingD. played（）8. The teacher asks us in the street, because it’s dangerous.A. playB. to playC. of playingD. not to play（）9. My father gave a doll as a birthday present when I was young.A. sheB. herC. ID. me（）10. I spent three hours the work.A. finish B. on finish C. to finish D. finishing（）11. Danny did all kinds of things to make the baby .A. to shop cryingB. stop cryingC. to stop to cryD. stop to cry（）12. The room is dirty. Let me .A. tidyB. to tidy it upC. tidy up itD. to tidy up it( ) 13. Can you tell me ?A. where are you fromB. where you are fromC. where do you come fromD. where do you come( ) 14. My sister was ill. She felt like nothing.A. to eat B. eat C. eating D. to eating( ) 15. ---Do you know will teach us English next term?---Miss LI.A. whatB. whichC. whereD. who( )16．—Remember the window when you leave．It is going to rain．—0K．A．to close B．closing C．to open D. open( )17．Don’t be shy．Just keep ． A．smiling B．to smile C．smile D．smiles( )18．I 1ike listening to the radio but I hate TV．A．watching B．to watch C．watches D．watched( )19．Granny often tells us water in our daily life．A．save B．saving C．to save D．saves( )20．I’d like shopping with Betty and Lingling，but I don’t have time．A．going B．went C．go D．to go( )21．—Do you still remember me somewhere in Beijing?—Yes，of course．Two years ago．A．to see B．see C．seeing D．saw( )22．They stopped as soon as the teacher came in．A．talking B．to talk C．talk D．talks( )23．Thank you for me with the heavy box． A．help B．helps C．to help D．helping( )24． Aunt Li often asks her son too much meat．It’s bad for his health．A．don’t eat B．not to eat C．not eat D．to not eat( )25．If you want to work on China Radio International．keep English well．A．study B．studied C．studying D．to study( )26．Have you finished your homework? A．do B．to do C．doing D．did( )27．I often remember my father play the violin at home when 1 was young．A．to listen to B．1istening to C．to heard D．hearing( )28．It’s time to have a Class．Let’s stop ．A．play B．to play C．playing D．played( )29．I need to practice basketball every day because 1 want to become aprofessional basketball player like Lin Shuhao．A．play B．to play C．playing D．played( )30．—Would you like the Great Wall with us tomorrow?—I’d like to．And I have been there twice，it’s great．A．visits B．visit C．visiting D．to visit( )31．If anyone ，tell them I’m not at home． A．calls B．called C．call D．will call( )32．Yesterday Tony his bike Lily because there was something wrong with hers．A．lent；to B．1ent；from C．borrow；to D．borrow；from ( )33．Listen! Someone is in the next room．A．play violin B．play the violin C．playing violin D．playing the violin( )34．There is with your car．You needn’t repair it．A．anything wrong B．something wrong C．wrong nothing D．nothing wrong( )35．If a snake bites you， a photo with your mobile phone． A．take B．to take C．will take D．taking( )36．If you don’t want to go to the hospital． more water and have a good sleep．A．drinking B．to drink C．drank D．drink( )37．Work hard if you to get a good mark． A．wants B．want C．wanting D．wanted( )38．If you how to use MP4，read the instructions．A．know B．don’t know C．knew D．didn’t know( )39．Finish your homework first if you to play computer games． A．want B．wants C．wanting D．wanted( )40．If John too much time practicing basketball，his parents will punish him．A．takes B．spends C．pays D．costs( )41．You much better if you are more careful next time． A．do B．are doing C．did D．will do( )42．If it tomorrow，we’ll walk up the Great Wall．A．don’t rain B．doesn’t rain C．isn’t rain D．won’t rain( )43．My father always warns me not his computer for playing games·A．use B．using C．to use D．used( )44．If he harder，he will catch up with us soon．A．study B．studies C．will study D．studied( )45．The teacher often tells the boys quiet in class．A．to keep B．keep C．keeping D．keeps( )46．Lingling offered me yesterday． A．to help B．helping C．help D．helps( )47．I don’t know if he tomorrow．I’ll call you if he ． A．comes；comes B．will come；comes C．will come；will come D．comes，will come( )48．John a film if he’s free next Saturday． A．see 13．saw C．has seen D．will see( )49．our Flew teacher warned us in the classroom．A．to run B．running C．not to run D．not running( )50．The teacher said that the earth around the sun．A．travelled B．travels C．travel D．was travelling( )51． the novels are not true to life，they make US relaxed． A．If B．Because C．Although D．But( )52．Our teacher advised us films with too much fighting．A．to see B．to not see C．not to see D．saw( )53．They asked they could sit here．A．when B．if C．where D．that( )54．Please tell Kate too my home．1 want to give her a gift． A．come B．coming C．comes D．to come( )55．Miss Liu asked us too much．It is bad for our health．A. to eat B．not to eat C．eating D．not eating( )56．He wanted to know ．A．how he could get there B．how could he get thereC．how can he get there D．how he can get there( )57．The doctor asked me TV too much because it is bad for my eyes．A．not to watch B．not watch C．to watch D．watching( )58．What about in the park? A．go fishing B．going fish C．going fishing D．go fish( )59．—Could you tell me the concert will be held? —In a park． A．when B．what C．who D．where( )60．I asked lend me his watch．A．why he can B．why he could C．if he could D．if he can( )61．Betty is a new student here，so students know her at school now．A．a little B．1ittle C．a few D．few( )62．I asked Tom ．A．if he has been to Shanghai B．if he had been to ShanghaiC．if he has gone to Shanghai D．if he had gone to Shanghai( )63．I made the baby crying． A．stop B．stopped C．not D．stopping( )64．When I was walking in the park，I heard a little girl there． A·crying B．cries C．cry D．cried( )65．Could you tell me ?A．where the hospital was B．where is the hospitalC．where the hospital is D．where was the hospital( )66．Lingling could hardly hear the traffic,A．couldn’t she B．can’t she C．could she D．can she( )67．There is water in the cup．I have to get some．A．few B．a few C．little D．a little( )68．Parents told the children balls on the Street because it’s too dangerous．A．to play B．play C．not to play D．to not play( )69．Tony asked he could help me with my English．A．as if B．if C．that D．what( )70．Labour Day is not always May 1st． A．in B．with C．on D．at( )71．They won’t leave you come back． A．and B．until C．but D．because( )72．He will call me as soon as he there．A．get B．got C．gets D．will get( )734．I found my brother was doing his homework I got home． A．before B．after C．when D．until( )74．I don’t think you should spend SO much time computer games．A．play B．played C．to play D．playing( )75．John fell asleep he was listening to the music．A．after B．before C．while D．as soon as( )76．—Is there in the newspaper?—Yes．A new railway will be built next year．A．something new B．new something C．anything new D．new anything( )77．I think he’11 call you up as soon as he Beijing．A．is reaching B．reached C．will reach D．reaches( )78．He often his sister with some money．A．helps；off B．looks；out C．looks；after D．helps；out ( )79．My brother spent two hours his room yesterday because it was too dirty．A．tidy B．tidying C．to tidy D．tidied( )80．He told me on my parents too much．A．not to depend B．not depend C．to depend D．depending ( )81．I until my mother came back．A．went to bed B．don’t go to bed C．didn’t go to bed D．go to bed( )82．Please call me as soon as he back．A．comes B．came C．will come D．come( )83．Tom promised to the train station at four o’clock but he didn’t arrive until six thirty．A．getting B．1eaving C．to get D．to leave( )84．Stop so much noise! Father is working at the desk． A．make B．making C．to make D．makes( )85．Please knock on the door you come into the room． A．after B．before C．until D．while( )86． I was shopping，a thief stole my wallet． A．While B．Where C．After D．Until( )87．They want to go for their holidays．A．warm somewhere B．somewhere warm C．anywhere warm D．everywhere warm( )88．After an hour’s work，we stopped ．A．having a rest B．to have a rest C．have a rest D．had a rest( )89．What he said made everyone happily．A．to laugh B．laugh C．laughs D．laughing( )90．The math problem was so difficult that students could work it out．A．few B．a few C．1ittle D．a little( )91．He read the text again and again he could keep it in his mind．A. so that B．but C．because D．such that( )92．Florence Nightingale died August 13th，1910，when she was 90．A·to B．on C．in D．at( )93．It’s our duty to make our environment ．A·cleaning B．to clean C．cleaned D．clean( )94．My grandparents enjoy Beijing Opera．A．watching B．watch C．to watch D．watched( )95．When the teacher came into the classroom，the children at once．A．stopped to talk B．stopped talking C．would stop to talk D．would stop talking( )96．— did you come to school late yesterday?—Because I didn’t catch the first bus．A．How B．Why C．When D．Where( )97．—Would you like this summer holiday with me? —Yes，I’d love to．A．spending B．spend C．spent D．to spend( )98．My mother was so tired she didn’t cook the meal for me yesterday．A．that B．because C．after D．as( )99．I have to tell you．Please listen to me carefully．A．something important B．important something C．nothing important D．important nothing( )100．Lucy’s schoolbag is the same as ． A．I B．me C．my D．mine( )101． the mobile phone was a bit expensive，the girl bought it． A．Although B．However C．Because D. But答案：1-5 DBACB 6-10CCDDD 11-15 BBBCD 16-20 AAACD 21-25 CADBC26-30 CCBDB 31-35AADDA 36-40DBBAB 41-45DBCBA 46-50 ABDCB51-55 CCBDB 56-60 AACDC 61-65DBAAC 66-70CCCBC 71-75BCCDC76-80CDDBA 81-85 CACBB 86-90 ABBBA 91-95 ABDAB 96-101BDAADA。
新目标八年级下册英语Unit 3 Section B Self Check 随堂检测及答案
新目标八年级下册英语Unit 3 Section B Self Check 随堂检测Ⅰ.单项填空（）1.—Mom,could I go out with my friends?—,but you have to come back before 10:00.A.Sorry,you can’tB.Yes,you canC.No wayD.Never mind（）2.The Millers want their son to be a scientist,so they are his interest in science at his early age.A.growingB.expectingC.improvingD.developing（）3.—Which bicycle should I choose,sir?—It what you want to use it for.A.takes onB.carries onC.puts onD.depends on（）4.—How long can I this book?—Five days.But you must return it on time.A.borrowB.lendC.keepD.carry（）5.—I know nothing about the film Titanic.—.A.Neither do IB.So do IC.Neither did ID.So did I（）6.All of us find necessary to take exercise every day.A.thisB.thatC.themD.it（）7.The clever boy called 120his mother fell down in the kitchen.A.althoughB.as soon asC.as long asD.until（）8.This report shows that doing exercise every day is a good way to reduce( 减少) our.A.luckB.happinessC.healthD.stress（）9.Amy is late for the interview because of the heavy snow,so she thinks it is to give her a second chance.A.blindB.fairC.simpleD.clear（）10.Nancy will give us a report as soon as shetomorrow.A.arrivedB.will arriveC.arrivesD.is arrivingⅡ.完形填空Lisa is serious about the chores in her house.She gives her children things that they can do according to their1.She started by asking John,the2of her two sons,to help with the dishes.It is now an easy chore3the 15⁃year⁃old.His 13⁃year⁃old brother,Dave,now4 John,too.They take turns washing the5each week.The boys alsoclean their study tables,make their beds and6food from the market on Sunday mornings.Besides these,the boys also know how to cook easy meals7their parents are not at home.The8of four live in a big house but they do all the housework themselves.Lisa says,“When I was young,my father wanted us to do things on our own and learn how to9 ourselves.Now I’m doing it to my kids.”John says,“Doing chores is10.You can learn important life skills and responsibilities( 责任).”（）s B.ages C.hands D.grades（）2.A.elder B.taller C.younger D.shorter（）3.A.with B.as C.for D.by（）4.A.likes B.finds C.hates D.helps（）5.A.hands B.dishes C.fruit D.clothes（）6.A.borrow B.cook C.buy D.sell（）7.A.when B.how C.what D.why（）8.A.class B.club C.family D.group（）9.A.work on B.live in C.make fun of D.take care of （）10.A.difficult B.good C.bad D.boringⅢ.补全对话A:Hello,Zhao Yu!1.B:Hi,Li Hui.I did many things last weekend.I looked after my little brother,swept the floor,cooked and did the dishes.A:Wow,so much housework!You are so great.2.B:No.They went to Shenzhen.My aunt was ill and they went to visit her.3.A:Yes,I did.B:What chores do you usually do?A:4.What do you think of doing housework?B:It’s tiring and boring,but I think we should help our parents do chores often.A:5.We should understand how difficult it is to be a good parent.Ⅳ.阅读理解Teens will finally grow up some day,leaving their parents and facing the challenges in life alone,so they should learn basic life skills and form good working habits.The government has been trying to pay attention to the importance of hard⁃working spirit education( 劳动教育).But this has been overlooked in recent years.Many teens do not value the importance of working hard.There is a teenager girl named Nancy.She never helps out around the house.Once her mother was on vacation for a week,leaving her alone at home.When her mother came home from vacation,she could not find a clean dish or a clean shirt.Schools play an important role in teaching students about the value of working hard.Primary and middle schools should provide students with hard⁃working spirit courses every week.To our joy,some schools have provided each class with a piece of field to plant their favorite vegetables.For example,No.38 Middle School in Hefei,set up a500⁃square⁃meter farm on an open platform( 露天平台) of their teaching building.Each class is asked to grow and pick vegetables there.Parents should also encourage children to learn how to do chores at home.Teens should master( 掌握) one or two life skills every year.These skills can include( 包括) cooking,washing their own clothes and tidying their rooms.The basic skills may help teens to solve the problems they will meet in the future.（）1.The writer gives the example of Nancy in the second paragraph to show.A.Nancy is too busy to help out around the houseB.many teens do not value the importance of working hardC.Nancy’s parents don’t want her to help with chores at homeD.Nancy’s parents look down upon her（）2.Which is not the life skill for students according to the passage?A.Playing computer games.B.Washing clothes.C.Cooking.D.Doing the dishes.（）3.What can we learn from the passage?A.Schools should teach students how to relax themselves.B.Parents should encourage their children to do chores at home.C.The government never pays attention to hard⁃working spirit education.D.The life skills include cooking and painting.（）4.What is the title for the passage?A.Family EducationB.School EducationC.Hard⁃working Spirit EducationD.Study Skill EducationⅤ.任务型阅读I would never realize I was quite helpful around the house until my mom became st month,she went to hospital.The doctor said she needed to stay in bed and have a good rest.My dad works in a restaurant and returns home late every day.He doesn’t have time to do housework.This time,I had to depend on myself the whole week.I was provided with a chance to do housework.It was not as easy as I thought.As soon as I got home from school,I had to make dinner.It was always quick when my mom did it,but for me it took a long time.After dinner,I washed the dishes.Then I washed the clothes.This took more time.I didn’t even start to do my homework until late in the evening.By the weekend,I was really tired.I didn’t play with my friends because I needed to rest.My mom feels better this week.I’ll never forget how much work she does for our family.1.Where does the writer’s father work?(不超过5个词)2.What did the writer do after dinner?( 不超过10个词)3.What will the writer never forget after doing the housework?( 不超过15个词)参考答案Ⅰ.单项填空1.B2.D3.D4.C5.A6.D7.B8.D9.B 10.CⅡ.完形填空1.B2.A3.C4.D5.B6.C7.A8.C9.D 10.BⅢ.补全对话1.E2.D3.F4.G5.AⅣ.阅读理解1.B2.A3.B4.CⅤ.任务型阅读1.In a restaurant.2.The writer washed the dishes and clothes after dinner.3.The writer will never forget how much work his/her mom does for their family.。
八年级(下)数学教学目标检测题(四)
A BC DEFA B CDE F03Xyy =kx+b2y =x+a1八年级（下）数学教学目标检测题（四）《期中综合训练》一、选择题：（每小题3分，共30分）1、使分式 有意义的x 的取值范围是（ ）。
A 、 B 、 C 、 D 、全体实数2、下列运算中正确的是（ ）。
A 、B 、C 、D 、 3、若正比例函数的图象过点（-2，1），则该函数的解析式为（ ）。
A 、y=2x B 、y=-2x C 、 D 、4、直角坐标系中有六个点：A （1，5）、B （-5，-1）、C （-2， ）、D （-3， ）、E （ ，3）、F （-2.5，-2），其中有五个点在同一反比例函数的图象上，那么不在这个反比例函数图象上的点是（ ）。
A 、CB 、DC 、ED 、F5、如图，已知AE=CF ，∠A=∠FCD ，补充下列条件中的（ ）不能判定△ABE ≌△CDF 。
A 、∠E=∠FB 、AB=CDC 、BE ∥DFD 、BE=DF6、如图，点E 在正方形ABCD 的边BC 上，点F 在AB 的延长线上，且BE=BF ，若∠BAE=28°，则∠F=（ ）。
A 、28°B 、62°C 、72°D 、58°7、如图，直线y 1=x ＋a 与y 2=kx ＋b 的交点的横坐标是3，下列判断：（1）k＜0；（2）a ＞0；（3）当x=3时，y 1=y 2；（4）当x ＞3时，y 2＞y 1。
正确的是（ ）。
A 、（1）（2）B 、（3）（4）C 、（1）（3）D 、（2）（4）8、下列判断中错误的是（ ）。
A 、有两角和一边对应相等的两个三角形全等B 、有一腰和底边分别对应相等的两个等腰三角形全等23+x x32-〉x 32-≠x 32≠x c b a c b a --=--3232=++n m n m y x y x y x +=++22y x yx y x +=--22x y 21-=x y 21=2535-35ABCDEABCDEC 、有一边和一个锐角分别对应相等的两个直角三角形全等D 、有两边和其中一边的对角对应相等的两个三角形全等 9、化简 的结果是（ ）。
新目标八年级下册英语Unit 3 Section A 1a~2c 随堂检测及答案
人教版八年级（下册）Unit 3 Section A 1a~2c 随堂检测Ⅰ.根据句意及首字母提示补全单词1．How dirty the classroom is! Please s________ it at once. 2．Please f________ your clothes. Don't put them everywhere. 3．Here is a lot of r________. Could you take it out?4．My mother often cooks delicious food in the k________.5．Mary lives on the 10th f________ in the apartment.6．Your room is very tidy. But mine is in such a m________.Ⅱ.用所给单词的适当形式填空7．The doctor said that we shouldn't ________(waste) any food. 8．Could you please ________(go) to the school party with me?9．I saw a little boy ________(lie) on the road when I passed by. 10．Be careful, children! Don't hurt ________(you) when you play. 11．My aunt will soon get used to ________(live) in the countryside. 12．The book told us the ________(important) of making good decisions.13．My brother ________(eat) too much for dinner yesterday evening. 14．—Could I ________(sweep) the floor tomorrow?—Yes, of course you ________(can)．15．My sister had difficulty ________(finish) the homework by herself. 16．Li Hua cut herself when ________(cook) dinner last night.Ⅲ.用方框中所给短语的适当形式填空17．I want to go to the park，too. Can I ____________？18．Tom, please ____________ the rubbish.19．That was the first time I ____________ all night.20．Teddy always helps his mother ____________ after dinner. 21．Kate ____________ in her bedroom when her mother got home. Ⅳ.根据汉语意思完成句子22．我每天早上都整理床铺。
八年级数学目标复习检测卷带答案
八年级数学目标复习检测卷带答案一、选择题：本大题共14个小题，每小题3分，共42分，在每小题给出的四个选项中，有一个是正确的，请把正确选项的代码填在体后的括号内1.以下问题，不适合用全面调查的是A.了解全班同学每周体育锻炼的时间B.旅客上飞机前的安检C.学校招聘教师，对应聘人员面试D.了解全市中小学生每天的零花钱2.如图所示，若在某棋盘上建立直角坐标系，使“将”位于点1，﹣2，“象”位于点3，﹣2，则“炮”位于点A.1，3B.﹣2，1C.﹣1，2D.﹣2，23.点A1，﹣2关于x轴对称的点的坐标是A.1，﹣2B.﹣1，2C.﹣1，﹣2D.1，24.下列变量间的关系不是函数关系的是A.长方形的宽一定，其长与面积B.正方形的周长与面积C.等腰三角形的底边长与面积D.圆的周长与半径5.小芳的爷爷每天坚持体育锻炼，某天他慢步行走到离家较远的公园，打了一会儿太极拳，然后沿原路跑步到家里，下面能够反映当天小芳爷爷离家的距离y米与时间x分钟之间的关系的大致图象是A. B. C. D.6.如图所示，图案上各点纵坐标不变，横坐标分别加2，连接各点所得图案与原图案相比A.位置和形状都相同B.横向拉长为原来的2倍C.向左平移2个单位长度D.向右平移2个单位长度7.点A的位置如图所示，则关于点A的位置下列说法中正确的是A.距点O4km处B.北偏东40°方向上4km处C.在点O北偏东50°方向上4km处D.在点O北偏东40°方向上4km处8.在函数y= 中，自变量x的取值范围是A.x≥﹣2且x≠1B.x≤2且x≠1C.x≠1D.x≤﹣29.已知点P3﹣m，m﹣1在第二象限，则m的取值范围在数轴上表示正确的是A. B. C. D.10.在平面直角坐标系中，已知线段AB∥x轴，端点A的坐标是﹣1，4且AB=4，则端点B的坐标是A.﹣5，4B.3，4C.﹣1，0D.﹣5，4或3，411.为了解中学300名男生的身高情况，随机抽取若干名男生进行身高测量，将所得数据整理后，画出频数分布直方图如图.估计该校男生的身高在169.5cm～174.5cm之间的人数有A.12B.48C.72D.9612.如图，正方形ABCD的边长为4，P为正方形边上一动点，沿A→D→C→B→A 的路径匀速移动，设P点经过的路径长为x，△APD的面积是y，则下列图象能大致反映y与x 的函数关系的是A. B. C. D.13.在直角坐标平面内的机器人接受指令“[a，A]”a≥0，0°A.﹣1，B.﹣1，C. ，﹣1D. ，114.在直角坐标系中，O为坐标原点，已知点A1，1，在x轴上确定点P，使△AOP为等腰三角形，则符合条件的点P的个数共有A.6个B.5个C.4个D.3个二、准确填空：本大题共6个小题，每小题4分，共24分15.某校为了了解700名八年级学生是视力情况，从中抽取了100名学生进行测试，其中总体为，样本为，样本容量.16.已知点P3，2，则点P到x轴的距离是，到y轴的距离是，到原点的距离是.17.某超市，苹果的标价为3元/千克，设购买这种苹果xkg，付费y元，在这个过程中常量是，变量是，请写出y与x的函数表达式.18.根据图中的程序，当输入x=5时，输出的结果y= .19.若点Ma+3，a﹣2在y轴上，则点M的坐标是.20.如图，在平面直角坐标系中，一动点从原点O出发，按向上，向右，向下，向右的方向不断地移动，每次移动一个单位，得到点A10，1，A21，1，A31，0，A42，0，…那么点A4n+1n为自然数的坐标为用n表示.三、细心解答：本大题共6个小题，共54分，解答应写出文字说明、证明过程或演算步骤21.如图，已知在平面直角坐标系中，△ABC的位置如图所示.1请写出A、B、C三点的坐标;2将△ABC向右平移6个单位，再向上平移2个单位，请在图中作出平移后的△A′B′C′，并写出△A′B′C′各点的坐标;3求出△ABC的面积.22.兰州市某中学对本校初中学生完成家庭作业的时间做了总量控制，规定每天完成家庭作业的时间不超过1.5小时，该校数学课外兴趣小组对本校初中学生回家完成作业的时间做了一次随机抽样调查，并绘制出频数分布表和频数分布直方图如图的一部分.时间小时频数人数频率0≤t<0.5 4 0.10.5≤t<1 a 0.31≤t<1.5 10 0.251.5≤t<2 8 b2≤t<2.5 6 0.15合计 11在图表中，a= ，b= ;2补全频数分布直方图;3请估计该校1400名初中学生中，约有多少学生在1.5小时以内完成了家庭作业.23.一天小强和爷爷去爬山，小强让爷爷先上山，然后追赶爷爷.图中两条线段分别表示小强和爷爷离开山脚的距离y米与爬山所用时间x分的关系从小强开始爬山时计时，看图回答下列问题：1小强让爷爷先上山多少米?2山顶高多少米?谁先爬上山顶?3小强通过多少时间追上爷爷?4谁的速度快，快多少?24.为了解学生参加社团的情况，从2021年起，某市教育部门每年都从全市所有学生中随机抽取2000名学生进行调查，图①、图②是部分调查数据的统计图参加社团的学生每人只能报一项根据统计图提供的信息解决下列问题：1求图②中“科技类”所在扇形的圆心角α的度数2该市2021年抽取的学生中，参加体育类与理财类社团的学生共有多少人?3该市2021年共有50000名学生，请你估计该市2021年参加社团的学生人数.25.如图，在平面直角坐标系中，第一次将△OAB变换成△O A1B1，第二次将△OA1B1变换成△OA2B2，第三次将△OA2B2变换成△OA3B3.1观察每次变换前后的三角形的变化规律，若将△OA3B3变换成△OA4B4，则A4的坐标是，B4的坐标是;2若按第1题找到的规律将△OAB进行n次变换，得到△OAnBn，比较每次变换中三角形顶点坐标有何变化，找出规律，推测An的坐标是，Bn的坐标是.26.某市规定如下用水收费标准：每户每月的用水不超过6m3，水费按每立方米a元收费，超过6m3时，不超过的部分每立方米仍按a元收费，超过的部分每立方米按c元收费，该市某户今年3、4月份的用水量和水费如表所示：设某户该月用水量为xm3，应交水费为y元.1求a、c的值;2写出不超过6m3和超过6m3时，y与x之间的关系式;3若该户5月份的用水量为8m3，求该户5月份的水费是多少元?月份用水量/m3 水费/元3 5 7.54 9 27、选择题：本大题共14个小题，每小题3分，共42分，在每小题给出的四个选项中，有一个是正确的，请把正确选项的代码填在体后的括号内1.以下问题，不适合用全面调查的是A.了解全班同学每周体育锻炼的时间B.旅客上飞机前的安检C.学校招聘教师，对应聘人员面试D.了解全市中小学生每天的零花钱【考点】全面调查与抽样调查.【分析】由普查得到的调查结果比较准确，但所费人力、物力和时间较多，而抽样调查得到的调查结果比较近似.【解答】解：A、了解全班同学每周体育锻炼的时间，数量不大，宜用全面调查，故A 选项错误;B、旅客上飞机前的安检，意义重大，宜用全面调查，故B选项错误;C、学校招聘教师，对应聘人员面试必须全面调查，故C选项错误;D、了解全市中小学生每天的零花钱，工作量大，且普查的意义不大，不适合全面调查，故D选项正确.故选D.2.如图所示，若在某棋盘上建立直角坐标系，使“将”位于点1，﹣2，“象”位于点3，﹣2，则“炮”位于点A.1，3B.﹣2，1C.﹣1，2D.﹣2，2【考点】坐标确定位置.【分析】以“将”位于点1，﹣2为基准点，再根据““右加左减，上加下减”来确定坐标即可.【解答】解：以“将”位于点1，﹣2为基准点，则“炮”位于点1﹣3，﹣2+3，即为﹣2，1.故选B.3.点A1，﹣2关于x轴对称的点的坐标是A.1，﹣2B.﹣1，2C.﹣1，﹣2D.1，2【考点】关于x轴、y轴对称的点的坐标.【分析】根据关于x轴对称点的坐标特点：横坐标不变，纵坐标互为相反数可直接得到答案.【解答】解：点A1，﹣2关于x轴对称的点的坐标是1，2，故选：D.4.下列变量间的关系不是函数关系的是A.长方形的宽一定，其长与面积B.正方形的周长与面积C.等腰三角形的底边长与面积D.圆的周长与半径【考点】函数的概念.【分析】根据函数定义：对于函数中的每个值x，变量y按照一定的法则有一个确定的值y与之对应，解答即可.【解答】解：A、长=面积/宽;B、面积=周长/42;C、高不能确定，共有三个变量;D、周长=2π•半径.故本题选C.5.小芳的爷爷每天坚持体育锻炼，某天他慢步行走到离家较远的公园，打了一会儿太极拳，然后沿原路跑步到家里，下面能够反映当天小芳爷爷离家的距离y米与时间x分钟之间的关系的大致图象是A. B. C. D.【考点】函数的图象.【分析】分三段考虑，①漫步到公园，此时y随x的增大缓慢增大;②打太极，y随x 的增大，不变;③跑步回家，y随x的增大，快速减小，结合选项判断即可.【解答】解：小芳的爷爷点的形成分为三段：①漫步到公园，此时y随x的增大缓慢增大;②打太极，y随x的增大，不变;③跑步回家，y随x的增大，快速减小，结合图象可得选项C中的图象符合.故选C.6.如图所示，图案上各点纵坐标不变，横坐标分别加2，连接各点所得图案与原图案相比A.位置和形状都相同B.横向拉长为原来的2倍C.向左平移2个单位长度D.向右平移2个单位长度【考点】坐标与图形变化-平移.【分析】根据横坐标变化，纵坐标不变确定图形向右平移2个单位长度解答.【解答】解：∵图案上各点的纵坐标不变，横坐标分别加2，∴连结各点所得图案与原图案相比：向右平移2个单位长度.故选D.7.点A的位置如图所示，则关于点A的位置下列说法中正确的是A.距点O4km处B.北偏东40°方向上4km处C.在点O北偏东50°方向上4km处D.在点O北偏东40°方向上4km处【考点】坐标确定位置.【分析】根据点的位置确定应该有方向以及距离，进而利用图象得出即可.【解答】解：如图所示：点A在点O北偏东40°方向上4km处.故选：D.8.在函数y= 中，自变量x的取值范围是A.x≥﹣2且x≠1B.x≤2且x≠1C.x≠1D.x≤﹣2【考点】函数自变量的取值范围.【分析】根据被开方数大于等于0，分母不等于0列式计算即可得解.【解答】解：由题意得，x+2≥0且x﹣1≠0，解得x≥﹣2且x≠1.故选：A.9.已知点P3﹣m，m﹣1在第二象限，则m的取值范围在数轴上表示正确的是A. B. C. D.【考点】在数轴上表示不等式的解集;解一元一次不等式组;点的坐标.【分析】根据第二象限内点的坐标特点，可得不等式，根据解不等式，可得答案.【解答】解：已知点P3﹣m，m﹣1在第二象限，3﹣m<0且m﹣1>0，解得m>3，m>1，故选：A.10.在平面直角坐标系中，已知线段AB∥x轴，端点A的坐标是﹣1，4且AB=4，则端点B的坐标是A.﹣5，4B.3，4C.﹣1，0D.﹣5，4或3，4【考点】点的坐标.【分析】根据平行于x轴直线上点的纵坐标相等，到一点距离相等的点有两个，可得答案.【解答】解：由线段AB∥x轴，端点A的坐标是﹣1，4，得B点的纵坐标是4.由AB=4，得B点坐标﹣5，4或3，4，故选：D.11.为了解中学300名男生的身高情况，随机抽取若干名男生进行身高测量，将所得数据整理后，画出频数分布直方图如图.估计该校男生的身高在169.5cm～174.5cm之间的人数有A.12B.48C.72D.96【考点】频数率分布直方图;用样本估计总体.【分析】根据直方图求出身高在169.5cm～174.5cm之间的人数的百分比，然后乘以300，计算即可.【解答】解：根据图形，身高在169.5cm～174.5cm之间的人数的百分比为：×100%=24%，所以，该校男生的身高在169.5cm～174.5cm之间的人数有300×24%=72人.故选C.12.如图，正方形ABCD的边长为4，P为正方形边上一动点，沿A→D→C→B→A 的路径匀速移动，设P点经过的路径长为x，△APD的面积是y，则下列图象能大致反映y与x 的函数关系的是A. B. C. D.【考点】动点问题的函数图象.【分析】根据动点从点A出发，首先向点D运动，此时y不随x的增加而增大，当点P在DC山运动时，y随着x的增大而增大，当点P在CB上运动时，y不变，据此作出选择即可.【解答】解：①当点P由点A向点D运动时，y的值为0;②当点P在DC上运动时，y随着x的增大而增大;③当点p在CB上运动时，y=AB•AD，y不变;④当点P在BA上运动时，y随x的增大而减小.故选B.13.在直角坐标平面内的机器人接受指令“[a，A]”a≥0，0°A.﹣1，B.﹣1，C. ，﹣1D. ，1【考点】坐标与图形变化-旋转;含30度角的直角三角形;勾股定理.【分析】根据题意画出图形，得出OA=2，∠AOC=60°，求出∠AOB，根据直角三角形的性质和勾股定理求出OB、AB即可.【解答】解：由已知得到：OA=2，∠COA=60°，过A作AB⊥X轴于B，∴∠BOA=90°﹣60°=30°，∴AB=1，由勾股定理得：OB= ，∴A的坐标是﹣，﹣1.故选C.14.在直角坐标系中，O为坐标原点，已知点A1，1，在x轴上确定点P，使△AOP为等腰三角形，则符合条件的点P的个数共有A.6个B.5个C.4个D.3个【考点】坐标与图形性质;等腰三角形的判定.【分析】本题应该分情况讨论.以OA为腰或底分别讨论.当A是顶角顶点时，P是以A 为圆心，以OA为半径的圆与x轴的交点，共有1个，若OA是底边时，P是OA的中垂线与x轴的交点，有1个，共有4个.【解答】解：1若AO作为腰时，有两种情况，当A是顶角顶点时，P是以A为圆心，以OA为半径的圆与x轴的交点，共有1个，当O是顶角顶点时，P是以O为圆心，以OA为半径的圆与x轴的交点，有2个;2若OA是底边时，P是OA的中垂线与x轴的交点，有1个.以上4个交点没有重合的.故符合条件的点有4个.故选：C.二、准确填空：本大题共6个小题，每小题4分，共24分15.某校为了了解700名八年级学生是视力情况，从中抽取了100名学生进行测试，其中总体为700名八年级学生的视力情况，样本为从中抽取100名学生的视力情况，样本容量100 .【考点】总体、个体、样本、样本容量.【分析】总体是指考查的对象的全体，个体是总体中的每一个考查的对象，样本是总体中所抽取的一部分个体，而样本容量则是指样本中个体的数目.我们在区分总体、个体、样本、样本容量，这四个概念时，首先找出考查的对象.从而找出总体、个体.再根据被收集数据的这一部分对象找出样本，最后再根据样本确定出样本容量.【解答】解：为了了解700名八年级学生是视力情况，从中抽取了100名学生进行测试，其中总体为700名八年级学生的视力情况，样本为从中抽取100名学生的视力情况，样本容量 100，故答案为：700名八年级学生的视力情况，从中抽取100名学生的视力情况，100.16.已知点P3，2，则点P到x轴的距离是 2 ，到y轴的距离是 3 ，到原点的距离是.【考点】点的坐标.【分析】根据点到x轴的距离等于纵坐标的长度，到y轴的距离等于横坐标的长度解答;再利用勾股定理列式求出到原点的距离即可.【解答】解：点P3，2到x轴的距离是2，到y轴的距离是3，到原点的距离为： = .故答案为：2，3， .17.某超市，苹果的标价为3元/千克，设购买这种苹果xkg，付费y元，在这个过程中常量是 3 ，变量是x、y ，请写出y与x的函数表达式y=3x .【考点】函数关系式;常量与变量.【分析】根据常量与变量定义即可得知，再根据：总花费=单价×数量，把相关数值代入即可得函数表达式.【解答】解：在购买苹果的过程中，苹果的单价3元/千克不变，所付费用y随购买数量xkg的变化而变化，∴这个过程中，常量是3，变量是x、y，且y=3x，故答案为：3，x、y，y=3x.18.根据图中的程序，当输入x=5时，输出的结果y= 0 .【考点】代数式求值.【分析】根据题意可知，该程序计算是将x代入y=﹣2x+10.将x=5输入即可求解.【解答】解：∵x=5>3，∴将x=5代入y=﹣2x+10，解得y=0.故答案为：0.19.若点Ma+3，a﹣2在y轴上，则点M的坐标是0，﹣5 .【考点】点的坐标.【分析】让点M的横坐标为0求得a的值，代入即可.【解答】解：∵点Ma+3，a﹣2在y轴上，∴a+3=0，即a=﹣3，∴点M的坐标是0，﹣5.故答案填：0，﹣5.20.如图，在平面直角坐标系中，一动点从原点O出发，按向上，向右，向下，向右的方向不断地移动，每次移动一个单位，得到点A10，1，A21，1，A31，0，A42，0，…那么点A4n+1n为自然数的坐标为2n，1 用n表示.【考点】规律型：点的坐标.【分析】根据图形分别求出n=1、2、3时对应的点A4n+1的坐标，然后根据变化规律写出即可.【解答】解：由图可知，n=1时，4×1+1=5，点A52，1，n=2时，4×2+1=9，点A94，1，n=3时，4×3+1=13，点A136，1，所以，点A4n+12n，1.故答案为：2n，1.三、细心解答：本大题共6个小题，共54分，解答应写出文字说明、证明过程或演算步骤21.如图，已知在平面直角坐标系中，△ABC的位置如图所示.1请写出A、B、C三点的坐标;2将△ABC向右平移6个单位，再向上平移2个单位，请在图中作出平移后的△A′B′C′，并写出△A′B′C′各点的坐标;3求出△ABC的面积.【考点】作图-平移变换.【分析】1根据平面直角坐标系写出各点的坐标即可;2根据网格结构找出点A′、B′、C′的位置，然后顺次连接即可，再根据平面直角坐标系写出各点的坐标;3利用△ABC所在的矩形的面积减去四周三个直角三角形的面积列式计算即可得解.【解答】解：1A﹣1，2，B﹣2，﹣1，C2，0;2△A′B′C′如图所示，A′5，4，B′4，1，C′8，2;3△ABC的面积=4×3﹣×1×4﹣×2×3﹣×1×3，=12﹣2﹣3﹣1.5，=12﹣6.5，=5.5.22.兰州市某中学对本校初中学生完成家庭作业的时间做了总量控制，规定每天完成家庭作业的时间不超过1.5小时，该校数学课外兴趣小组对本校初中学生回家完成作业的时间做了一次随机抽样调查，并绘制出频数分布表和频数分布直方图如图的一部分.时间小时频数人数频率0≤t<0.5 4 0.10.5≤t<1 a 0.31≤t<1.5 10 0.251.5≤t<2 8 b2≤t<2.5 6 0.15合计 11在图表中，a= 12 ，b= 0.2 ;2补全频数分布直方图;3请估计该校1400名初中学生中，约有多少学生在1.5小时以内完成了家庭作业.【考点】频数率分布直方图;用样本估计总体;频数率分布表.【分析】1根据每天完成家庭作业的时间在0≤t<0.5的频数和频率，求出抽查的总人数，再用总人数乘以每天完成家庭作业的时间在0.5≤t<1的频率，求出a，再用每天完成家庭作业的时间在1.5≤t<2的频率乘以总人数，求出b即可;2根据1求出a的值，可直接补全统计图;3用每天完成家庭作业时间在1.5小时以内的人数所占的百分比乘以该校的总人数，即可得出答案.【解答】解：1抽查的总的人数是： =40人，a=40×0.3=12人，b= =0.2;故答案为：12，0.2;2根据1可得：每天完成家庭作业的时间在0.5≤t<1的人数是12，补图如下：3根据题意得：×1400=910名，答：约有多少910名学生在1.5小时以内完成了家庭作业.23.一天小强和爷爷去爬山，小强让爷爷先上山，然后追赶爷爷.图中两条线段分别表示小强和爷爷离开山脚的距离y米与爬山所用时间x分的关系从小强开始爬山时计时，看图回答下列问题：1小强让爷爷先上山多少米?2山顶高多少米?谁先爬上山顶?3小强通过多少时间追上爷爷?4谁的速度快，快多少?【考点】函数的图象.【分析】由图象可知在爷爷先上了60米小强才开始追赶;由y轴纵坐标可知，山顶离地面的高度，又由两条线段的关系可知小强先到达山顶，小强追上爷爷，之间路程相等，由图象，两条线段的交点即为小强追上爷爷所用的时间.【解答】解：1由图象可知小强让爷爷先上了60米;2y轴纵坐标可知，山顶离地面的高度为300米，小强先爬山山顶;3小强用8分钟追上…4小强速度为240÷8=30米/分钟爷爷速度为÷8=22.5米/分钟30﹣22.5=7.5米/分钟小强速度快，快7.5米/分钟.24.为了解学生参加社团的情况，从2021年起，某市教育部门每年都从全市所有学生中随机抽取2000名学生进行调查，图①、图②是部分调查数据的统计图参加社团的学生每人只能报一项根据统计图提供的信息解决下列问题：1求图②中“科技类”所在扇形的圆心角α的度数2该市2021年抽取的学生中，参加体育类与理财类社团的学生共有多少人?3该市2021年共有50000名学生，请你估计该市2021年参加社团的学生人数.【考点】折线统计图;用样本估计总体;扇形统计图.【分析】1用1减去其余四个部分所占百分比得到“科技类”所占百分比，再乘以360°即可;2由折线统计图得出该市2021年抽取的学生一共有300+200=500人，再乘以体育类与理财类所占百分比的和即可;3先求出该市2021年参加社团的学生所占百分比，再乘以该市2021年学生总数即可.【解答】解：1“科技类”所占百分比是：1﹣30%﹣10%﹣15%﹣25%=20%，α=360°×20%=72°;2该市2021年抽取的学生一共有300+200=500人，参加体育类与理财类社团的学生共有500×30%+10%=200人;350000× =28750.即估计该市2021年参加社团的学生有28750人.25.如图，在平面直角坐标系中，第一次将△OAB变换成△OA1B1，第二次将△OA1B1变换成△OA2B2，第三次将△OA2B2变换成△OA3B3.1观察每次变换前后的三角形的变化规律，若将△OA3B3变换成△OA4B4，则A4的坐标是16，3 ，B4的坐标是32，0 ;2若按第1题找到的规律将△OAB进行n次变换，得到△OAnBn，比较每次变换中三角形顶点坐标有何变化，找出规律，推测An的坐标是2n，3 ，Bn的坐标是2n+1，0 .【考点】规律型：图形的变化类;点的坐标.【分析】根据图形写出点A系列的坐标与点B系列的坐标，根据具体数值找到规律即可.【解答】解：1因为A1，3，A12，3，A24，3，A38，3…纵坐标不变为3，横坐标都和2有关，为2n，那么A416，3;因为B2，0，B14，0，B28，0，B316，0…纵坐标不变，为0，横坐标都和2有关为2n+1，那么B4的坐标为32，0;2由上题规律可知An的纵坐标总为3，横坐标为2n，Bn的纵坐标总为0，横坐标为2n+1.26.某市规定如下用水收费标准：每户每月的用水不超过6m3，水费按每立方米a元收费，超过6m3时，不超过的部分每立方米仍按a元收费，超过的部分每立方米按c元收费，该市某户今年3、4月份的用水量和水费如表所示：设某户该月用水量为xm3，应交水费为y元.1求a、c的值;2写出不超过6m3和超过6m3时，y与x之间的关系式;3若该户5月份的用水量为8m3，求该户5月份的水费是多少元?月份用水量/m3 水费/元3 5 7.54 9 27【考点】一次函数的应用.【分析】1根据5<6，于是得到3月份用水量不超过6米3，于是得到结论;2依照题意，当x≤6时，y=ax;当x>6时，y=6a+cx﹣6，分别把对应的x，y值代入求解可得解析式;3把x=8代入y=6x﹣27y即可得到结论.【解答】1∵5<6，∴3月份用水量不超过6米3，则5a=7.5，解得：a=1.5，则根据4月份，得6×1.5+9﹣6c=27，解得：c=6;2当0< p="">当x>6时，y=6×1.5+6x﹣6=6x﹣27;3当x=8时，y=6×8﹣27=21，答：该户5月份的水费是21元.感谢您的阅读，祝您生活愉快。
八年级英语下目标与检测 参考答案
学习目标与检测八年级英语（下册）北京市朝阳区教研中心赵宇老师 2011.2Module 1 HobbiesUnit 1 Do you collect anything?一、词语学习（略）二、完成句子1. When did you start2. makes you so interested in3. gave me the first violin4. wanted him to tidy it up5. I saw my sister playing the violin6. My hobby is listening to music三、阅读还原句子 1. C 2. D 3. A四、听力理解 1. the piano 2. 2008 3. stamps 4. two years听力原文：Tony: Excuse me. What’s your hobby?Mary: My hobby is playing the piano.Tony: Why do you like it?Mary: It can make me happy and I feel relaxed while I’m playing it.Tony: When did you start it?Mary: In 2008. My uncle gave me the first violin as a birthday present.What about you, Tony? Is your hobby playing football?Tony: I can play football, but my real hobby is collecting stamps.Mary: When did you begin to collect them?Tony: Two years ago. Do you know that Liu Ming collects stamps, too?Mary: Really? I will send him a letter with a stamp on it next time.Tony: That’s a good idea. And send me two letters with stamps on them, right?Unit 2 Hobbies can make you grow as a person.一、阅读表达1. Yes.2. Four.3. Writing.4. He wrote a story and it came out as a book.5. Playing volleyball.二、单项填空 1. A 2. C 3. D 4. C 5. D 6. A 7. B 8. D三、完成句子1. such as stamps, film tickets2. can make you grow as a person3. came out in 20054. as well as dancing5. has spent a lot of time learning it6. asked us to try to imagine四、书面表达Dear Jane,How are you? Thanks for your letter. I’m very glad to talk about my hobby to you. My favorite hobby is going online. I usually surf the Internet after I finish my homework or when I want to know the latest news. Sometimes I download music from the Internet. I think hobbies can make us grow as a person, develop our interests and help us learn new skills. However, we shouldn’t spend all our time on our favourite hobby. There’re many other interesting things to do in life. We should try to do something new or different.Best wishes!Yours，JohnModule 1 综合训练一、词语学习（略）二、单项填空 1. C 2. B 3. C 4. A 5. B 6. C 7. C 8. A 9. B 10. A三、完成句子1. is very interested in2. gave it to me3. It’s very interestingto fly4. made me think about5. it has already brought him6. shouldn’t spend all the free time7. I often listened to my father 8. to help their parents do housework四、完型填空1．C 2. A 3. B 4. D 5. A 6. C 7. D 8. C 9. A 10. B五、书面表达My Favourite HobbyI have a few hobbies, such as playing computer games, reading story books and listening to music. But my favourite one is reading story books.When I was a child, I liked listening to my mother tell me stories before I went to bed. Then my mother taught me to read story books at the age of six. So I could read some easy stories before I became a primary student. I’ve enjoyed reading stories and I’ve learned a lot from them. Good stories make me grow as a person and they have brought me enjoyment and success. I’ve also learnt some reading and writing skills from the stories. They help me a lot in my life.Module 2 FriendshipUnit 1 Can you tell me where you’re from?一、词语学习（略）二、完成句子1. whether I can ask you2. if he could take a message3. foreigners like making friends4. asked me to hold the line5. why don’t you bring6. who will come三、阅读还原句子 1. B 2. D 3. A 4. C四、听力理解 1. June 2. 16 3. reading 3. magazine听力原文：M: Tina, do you know what day is Linda’s birthday?W: Yes, of course. Next Friday, June 27th. She will be 16 years old.M: I want to give her a present, but I don’t know what to buy. Do you have any idea?W: Do you know her hobbies?M: Yes, she likes reading.W: Why not give her a book?M: She has already had lots of books. I’d like to give her something special.W: What else does she like?M: She also likes listening to music.W: How about giving her a CD?M: It’s too expensive. I can’t afford to buy one.W: Then I know what you can buy her as a present.M: What is it?W: A magazine about popular music. She’ll be very pleased to read about her favourite things.M: That’s a good idea. Thanks a lot.Unit 2 No one knew who I was.一、阅读表达1. A smile.2. She felt very lonely.3. Because she didn’t want them to worry about her.4. He said nothing.5. The world is what you think it is.二、单项填空 1. A 2. B 3. A 4. C 5. D 6. B三、完成句子1. is always afraid to speak2. will make you feel happy3. I hear her singing4. remember smiling at me5. It doesn’t matter6. no one knew how to answer it四、书面表达Xiao Fang moved to Canada with her parents six months ago. She was so shy at first that she was afraid to speak to anyone in her new class. When she answered questions, she always worried about that her classmates would laugh at her pronunciation. As a result, she did not have any friends at school and she felt very lonely. One day, she entered a piano competition in her school. She played the piano so well that she won the first prize. It made her feel confident and it changed her life. She started to talk with her classmates. Day by day, she became close to everyone in her class. Now she has many friends and she feels happy again.Module 2 综合训练一、词语学习（略）二、单项填空 1. D 2. A 3. B 4. A 5. B 6. C 7. A 8. C 9. A 10. C三、完成句子1. Can I take a message2. gave me an important gift3. saw the boy playing football4. how I can make others feel happy5. is not afraid to stay6. like to make friends with her7. remember to close the door 8. to make pen friends四、完型填空1．C 2. D 3. B 4. C 5. D 6. B 7. A 8. C 9. A 10. D五、书面表达My Best Friend In our lives, we may have many friends. And good friends really mean a lot to us. One of my best friends is Mary. We are in the same class. She is very kind and helpful.Two years ago, I came to this city with my parents. Everything seemed new to me when I went to the new school. On the first day, I felt lonely because I had no friends. Just then, Mary came to talk to me. What’s more, she helped me with my English, too.Mary’s help made me feel happy and warm. As a result, we became friends soon. It was Mary who gave me the greatest help when I was new here. I think friendship is so important that it can help us feel happy and relaxed.Module 3 On the radioUnit 1 Remember to look out for the red light.一、词语学习（略）二、完成句子1. I would like to stay2. you must stop smoking3. Have you heard the latest news4. Thank you for taking us around5. need to wear warm clothes6. hates practicing playing the piano三、阅读还原句子 1. B 2. A 3. D四、听力理解 1. pilot 2. interesting 3. football 4. run听力原文：Mum: What do you want to be when you grow up, John?John: I want to be a pilot, Mum.Mum: Why do you want to be a pilot?John: Because I think it must be interesting to fly in the sky.Mum: But you have to be strong and healthy if you want to be a pilot?John: You are right, Mum. If you let me play football every day, I’ll be strong.Mum: Why don’t you run to school every day? Then you will be stronger.Unit 2 I remember sitting close to the radio.一、阅读表达1. Yes.2. At WXBN.3. Nine years old.4. He played his favourite music and talked about life at school.5. By looking out of the window.6. Because he wanted to do a sound check.二、单项填空 1. C 2. D 3. B 4. C 5. A三、完成句子1. enjoy reading the articles2. remember to close the windows3. asking for trouble4. decide where to go and how to go5. It seems that6. As you grow older四、书面表达Guo Jingming is one of the most popular young writers in our country. He liked reading when he was very young. He has kept writing diaries since he became a middle school student. As a result, he finished writing his first novel before he went to university. I’ve learned a lot from his story. I think interest is the best teacher. If we are interested in our study and never stop working hard, we will succeed one day. So I should learn from him. I will read more English books to improve my English. And I will practice speaking English every day. I’m sure I will be good at English soon.Module 3 综合训练一、词语学习（略）二、单项填空 1. D 2. A 3. A 4. B 5. C 6. B 7. C 8. D 9. B 10. A三、完成句子1. to thank you for sending me2. what you want to be3. in person once a month4. have already decided what to do四、阅读还原句子 1. C 2. D 3. A五、完型填空1．B 2. A 3. C 4. B 5. C 6. D 7. B 8. A 9. D 10. C六、书面表达My Hobby and My FutureI have many hobbies, but my favourite one is drawing. When I was a child, I became interested in those lines and colors because they gave me a beautiful world on paper. To begin with, I spent much time drawing animals. Then I took classes so that I could improve my drawing skills. After a few years, I could “talk”with others by drawing pictures. It really brings me happiness. Besides, I find it is a good way to relax myself now. In the future, I believe drawing will help me succeed because I want to be an artist. So I will keep practicing drawing and work hard at it. I will try to make my dream come true.Module 4 New technologyUnit 1 If you want to record, press the red button.一、词语学习（略）二、完成句子1. Can you lend me2. If you want to play back3. If you want to turn on4. has already sent me5. If the red light doesn’t come on6. If there is no one in the room三、阅读还原句子 1. B 2. D 3. A四、听力理解 1. green 2. red 3. fifteen 4. computer听力原文：W: Excuse me. Can you help me? I don't know how to take videos.M: Of course. First, you should press the green button to turn on the video camera.W: OK, let me try.M: If you want to record, press the red button. If the red light doesn’t come on, wait for fifteen seconds. Let’s try it together.W: Is it working?M: Yes, it is.W: What should I do if I want to save the video?M: Well, connect the video camera to the computer. And then you can save the video.W: I see. I can’t wait to have a try. Thanks a lot.M: My pleasure.Unit 2 If a snake bites you, take a photo.一、阅读表达1. Yes.2. Asia.3. He was working.4. Twice.5. Because they knew the kind of snake.6. Take its photo first and then show it to the doctors.二、单项填空 1. B 2. A 3. D 4. C 5. C 6. B三、完成句子1. what kind of person he is2. what is wrong (with it)3. take a photo of it4. I picked up a watch5. show the photo to him6. If you want to get to四、书面表达We have known a lot about Internet. How can we get useful information about what we want on the Internet? Today I’d like to take camera as an example and tell you how to search the information on the Internet. First you should connect the computer to the Internet. Then type “” in the website. Wait for a few seconds. If you want to know something about “camera”, type it in the box. Next, click on “Search”. Wait for another few seconds and choose the topic about “camera”. Then you can read the information about it.Module 4 综合训练一、词语学习（略）二、单项填空 1. A 2. B 3. D 4. A 5. D 6. B 7. C 8. A三、完成句子1. took this photo with my mobile phone2. please don’t worry3. what kind of animal it is4. We will go to climb四、阅读理解 1．C 2. D 3. D五、完型填空1．B 2. A 3. D 4. C 5. D 6. C 7. A 8. B 9. C 10. BModule 5 ProblemsUnit 1 If she goes to a different school, I won’t see my best friend.一、词语学习（略）二、完成句子1. That’s such a pity2. I have warned him about3. has been proud of us4. If you spend too much time5. I want to warn them not to do三、阅读还原句子 1. D 2. B 3. A四、听力理解 1. Friday evening 2. England 3. Books 4. the bookshop听力原文：Jack: Hi, Alice. We’re going to have a party. Would you like to come?Alice: That’s great! What’s it for?Jack: It’s Betty’s birthday. We are going to have a party for her this Friday evening.Alice: Oh dear! I’m afraid I can’t come that day. I’ll be in England then.Jack: That’s a shame. Maybe you can only send her a present.Alice: That’s a good idea. She likes flowers, doesn’t she?Jack: No, she doesn’t. Actually she likes books rather than flowers.Alice: So I can buy her a book as a birthday present. I’m going to the bookshop now. Thanks a lot!Jack: You are welcome. Good luck!Unit 2 If you tell him the truth, you’ll prove how honest you are.一、阅读表达1. No.2. He can only do his homework on it.3. A virus.4. He should tell his father the truth and offer to pay.5. By doing some jobs around the home or helping his father with his work.二、单项填空 1. A 2. B 3. C 4. D 5. A 6. C三、完成句子1. I have warned you not to walk2. she will be angry with me3. Let’s take them off4. won’t make so many mistakes5. If you offer to help四、书面表达Dear Xiaoqiang,I think it’s usual for us to have some problems in our school life. Most of us don’t like strict teachers. But in my opinion, all the teachers want their students to be as good as they can. So we should understand them first and do as a student should do. Then I think you can have a talk with our English teacher and tell her it is not good to be too strict with the students. Finally, why don’t you try your best to listen to her carefully in class and finish your homework well after school? I believe you will find the good points of our English teacher and get good marks in the exams.Best wishes!Yours,Li MingModule 5 综合训练一、词语学习（略）二、单项填空 1. A 2. B 3. C 4. A 5. D 6. B 7. D 8. C 9. B 10. C三、完成句子1. warn me not to let others copy2. You’d better keep a note3. I want to save up some money4. we beat them at the end of it5. if I could get high marks6. If you refuse to work hard at四、完型填空1．A 2. B 3. A 4. B 5. A 6. B 7. B 8. C 9. D 10. C五、书面表达Dear Ben,Nice to hear from you. Most of the students will meet this kind of problem. I’m not surprised at it. And I think you are right. It is not good for him to copy your answers. Everybody should be honest and work hard. But don’t tell others about it. If other students know that, they will laugh at your friend and he will be angry and hate you. It is a real shame if a friendship ends like that. If you want to help him, why don’t you have a talk with him and tell him what your opinion is? And then, spend some time helping him with his English. In this way, you won’t lose your friend and your friendship will be stronger.Yours,MaggieModule 6 EntertainmentUnit 1 She said China was a very exciting place.一、词语学习（略）二、完成句子1. he was listening to2. he was too sleepy to finish3. China is an exciting place4. tell the foreigner to do5. she was very worried about6. where the story took place三、阅读还原句子 1.D 2.A 3.C四、听力理解 1. England 2. place 3. week 4. family听力原文：W: Read Jimmy’s card to me please, Penny.M: “I have just arrived in England and I’m staying at Youth Hotel.”W: What？Speak up, Penny. I’m afraid I can’t hear you.M: He said that he had just arrived in England and he was staying at Youth Hotel.W: What else did he say？M: “It is an exciting and fantastic place.”W: Did he say that he would give an interview on TV？M: Yes, and it says “I will give an interview on TV next week.”W: Eh？M: He said he would give an interview on TV next week.W: Did he say he missed the family in the card？M: Yes, finally, he said he missed the family very much.W: So did I. Is that all？M: Yes, that’s the end.Unit 2 He said it was on at the student cinema.一、阅读表达1. Yes.2. Two.3. Elisabeth.4. Beautiful and romantic.5. It is an excellent film except for too much fighting.二、单项填空 1. B 2. D 3. C 4. A 5. C三、完成句子1. although it isn’t true to life2. she had to talk face to face3. advise children not to see4. novels can make people relaxed5. except for too much fighting6. I’m sure that many people will enjoy it7. should make the film more exciting 8. his favorite books were adventure novels四、书面表达Dear Linda,Thank you for your email. I am glad to talk about my favourite film. The name of the film is The Myth. Jackie Chan and Kim Hee-Seon are the stars. Jackie Chan plays as a general and Kim plays as a princess. They both act well and make the characters believable. Although the story is not true to life, it is an enjoyable film except for too much fighting. I advise you to see it if the film is on in America. I’m sure you’ll enjoy it.Yours,SallyModule 6 综合训练一、词语学习（略）二、单项填空 1. B 2. A 3. D 4. D三、完成句子1. it is very important2. She spends almost all her free time3. We will have plenty of homework4. others are listening to music四、阅读理解 1.C 2.B 3.D五、完形填空1. B2.C3. D4. A5. C6. B7.D8. B9. A 10. C六、书面表达Most middle school students like watching TV and it usually take them plenty of time. I enjoy watching TV as well. My favourite TV program is sports. I spend almost all my free time on it now. I know it’s not only bad for my study but also bad for my health, especially for my eyes. So I decide to go out to take some sports instead of only watching sports programs in the room. Maybe I can go swimming or play football with my friends. In my opinion, sports can help us keep healthy. And I’m sure I will become stronger and stronger with the help of sports activities.Module 7 Time offUnit 1 She asked if I was practising too much一、词语学习（略）二、完成句子1. we can hardly hear the traffic2. if I was practicing3. Why don’t we go to the park4. I told my teacher not to worry about me5. if I could help her with the housework三、阅读还原句子 1. C 2. A 3. D四、听力理解 1. Beijing 2. five 3. Great Wall 4. dumplings听力原文：Tony: Hello, 65527643.Kate: Hi, this is Kate. May I speak to Tony?Tony: Hi, Kate. It’s Tony. I’ve heard you’ll come to Beijing.Kate: Yes. I’m looking for information about Beijing now. I know you’ve lived in Beijing for 5 years. What do you think of Beijing?Tony: Oh, I think it’s great.Kate: I’m excited to hear that. What places should I visit in Beijing?Tony: I suggest visiting the Forbidden City and the Great Wall.Kate: I see. By the way, what about Chinese food?Tony: I like Chinese food. There’re many kinds of Chinese food, such as Beijing Roast Duck, dumplings and so on. They’re all delicious.Kate: Great! I’ll try Beijing Roast Duck and dumplings when I get to Beijing.Unit 2 Lingling’s uncle told us not to worry.一、阅读表达1. Yes.2. The strange shape of its tall rocks.3. They look like soldiers and animals.4. A monkey.5. Because it was dangerous and she should protect everything there.二、单项填空 1. C 2. D 3. A 4. D 5. B 6. D三、完成句子1. to wake me up2. if they came here3. spends more than one hour4. how long it takes us to do5. told us not to play football6. as if my mother came back四、书面表达Dear Jane,I’m very glad to hear that you are coming to Beijing for a visit during the summer holidays.Beijing is the capital of China. It has a long history. There are a lot of places of historic interest in this city, such as the Summer Palace, the Forbidden City, the Great Wall and so on. You can learn a lot when you visit these places. What’s more, Beijing is also famous for traditional Chinese food. Many foreign friends like eating Beijing Roast Duck and Chinese dumplings. When you come, I will show you around Beijing and invite you to have Chinese dinner. I’m looking forward to seeing you in Beijing.Best wishes!Yours,Chen HuaModule 7 综合训练一、词语学习（略）二、单项填空 1. A 2. B 3. B 4. A 5. C 6. A 7. D 8. C 9. D 10. B三、完成句子1. asked me to help her2. can hardly see anything3. if my mother will come back4. We hoped for a wonderful view5. not to make any noise6. You’re not feeling7. told me to look after myself 8. Don’t leave me alone四、完型填空1．B 2. A 3. D 4. A 5. A 6. D 7. D 8. B 9. A 10. A五、书面表达It was sunny last Saturday. I went to visit Beihai Park with my parents. There were so many people there and we stayed there for a whole day. The park is really large. It is 682,000 square meters. There are many interesting tourist spots there, such as White Pagoda, Qionghua Island and so on. The most famous one is White Pagoda. It has already become the symbol of Beihai Park. Beihai Park is one of the earliest buildings and the best gardens in the world. It is old, but beautiful. Every year, millions of visitors from different parts of the country and different parts of the world come to visit it. It has become more and more famous around the world.Module 8 Public holidaysUnit 1 It’s the last day before the new school year begins.一、词语学习（略）二、完成句子1. before the new school year starts2. it starts to get cooler3. While I was traveling4. as soon as the Spring Festival isover5. only have one day off6. until my father got home三、阅读还原句子 1. C 2. A 3. D四、听力理解 1. Chinese 2. the 5th 3. warmer 4. boat听力原文：Tony: Hi, Li Hua. I hear that an important Chinese festival is coming soon.Li Hua: Yes, it’s the Dragon Boat Festival.Tony: When is it?Li Hua: It’s on the 5th day of the 5th lunar month.Tony: Does it get cooler when the Dragon Boat Festival begins?Li Hua: No, it doesn’t. On the contrary, it gets warmer after the festival.Tony: Do you have anything special to celebrate the festival?Li Hua: Yes, we really have something special. We eat zongzi and have boat races to celebrate it.Tony: That sounds interesting. I am looking forward to it.Unit 2 As soon as it’s 12 o’clock…一、阅读表达1. No.2. On January 1st.3. They listen to music, sing traditional songs and have fun.4. As soon as it’s 12 o’clock.5. Four. ( relaxing, getting together for a meal, going out, making resolutions)二、单项填空 1. A 2. B 3. C 4. B 5. C三、完成句子1. as soon as I see him2. While we were waiting for the bus3. depends on the seasons4. It doesn’t matter.5. spends one hour practicing6. I’ll try to have四、书面表达I’ve been a junior high school student for two years. I like most of the school subjects, especially English. I’ve had an excellent English teacher. I like learning English, but I have spent more free time on computer games than on English. I can speak English well, but I’m not good at reading and writing.I don’t have a large vocabulary, either. So I’d like to make some resolutions for the next school year.I decide to work harder at English than before. I will try to read more English books and enlarge my vocabulary. I’ll try to I won’t spend so much time on computer games any more. I promise to follow the resolutions.Module 8 综合训练一、词语学习（略）二、单项填空 1. B 2. D 3. A 4. A 5. B 6. A 7. C 8. D二、完成句子1. while my father was watching TV2. when we get together3. until we finished cleaning4.as soon as I get home5. spent lots of time preparing for6. greet each other in the same way7. promised to help out 8. we are going to spend some time三、阅读理解（一）判断正误 1. F 2. T 3. T 4. F 5. T 6. T（二）回答问题1. No.2. They will shake their heads when they talk to others.3. He understood the Indian driver.4. Shaking heads does not always mean “No”.四、书面表达The Spring Festival or the Chinese New Year is the most important festival in China. On New Year’s Eve, the whole family get together for a special meal with dumplings. While we are waiting for the coming of the new year, we watch TV and have all kinds of delicious food and special drinks. As soon as it’s 12 o’clock, we usually shout loudly, “Happy Spring Festival!” and set off fireworks. On New Year’s day, we get up early to visit our friends or play traditional Chinese games. I think it’s a time to say good bye to the old year and to welcome the new.Module 9 HeroesUnit 1 She missed the final practice so that Kylie could play一、词语学习（略）二、完成句子1. so that we could hear her2. It’s really brave of3. new book is coming up4. because they wanted to play5. so she often plays on her own6. because she had a thought三、阅读还原句子 1. B 2. D 3. A四、听力理解 1. works hard 2. her father 3. Saturday 4. parents听力原文：Lingling: Excuse me, Daming. Who’s your hero?Daming: Yao Ming.Lingling: Why do you like him?Daming: Because he works hard all the time. How about you, Lingling?Lingling: In fact, my father is my real hero.Daming: Your father! Why?Lingling: Because he’s very helpful and his thoughts are always about helping others.Daming: I see. By the way, there’s a concert in our school next Saturday evening. Would you like to go with me?Lingling: I’d love to, but I’ve already invited my parents to go to the concert with me.Daming: That’s a good idea. I’ll invite my parents to go with me, too.Unit 2 There were few doctors, so he had to work very hard.一、阅读表达1. Yes.2. Because he wanted to look after injured soldiers.3. New treatments and medical tools.4. He opened hospitals, trained doctors and nurses and wrote books.5. 69 hours.二、单项填空 1. B 2. D 3. D 4. A 5. B 6. D 7.A 8. D三、完成句子1. take good care of ourselves2. stopped to have a rest3. decided to give his life to4. so that I could catch the first bus5. is one of the most famous writers四、书面表达Dr Norman Bethune was born 1890 in Canada. He became a doctor in 1916 and went to the front to look after the injured soldiers in the First World War. In 1938, he came to China to treat the Chinese soldiers. He had to work hard because there were few doctors at that time. Once, he performed operations for 69 hours without stopping, and saved 112 people. He continued working in spite of cutting his hand during an operation. In the end, he gave his life to helping Chinese soldiers because he didn’t stop to take care of his hand. Norman Bethune is one of China’s famous heroes. Chinese people will remember him forever.Module 9 综合训练一、词语学习（略）二、单项填空 1. C 2. D 3. C 4. A 5. B 6. A 7. A 8. D 9. A 10. B三、完成句子1. I will do my homework on my own2. in spite of her bad cold3. stopped to have a rest4. so that he could help students5. tried many ways to take care of6. so he had to work hard四、完型填空 1.A 2. D 3. C 4. A 5. B 6. C 7. D 8. D 9. B 10. A五、书面表达Jackie Chan is my favourite hero. He is a famous film star both in China and in the world. He was born in Hong Kong in 1954. His family was poor when he was young. He studied in a drama school in Hong Kong for ten years. In 1971, he became an actor in Gung Fu movies. He has developed the action films of China. He is also one of the most generous film stars. He has given away much money to the poor and sick people.I think his work makes him a hero. He is one of the most successful and helpful film stars in the world. Module 10 My perfect holidayUnit 1 I would go to London.一、词语学习（略）二、完成句子1. I would be afraid of2. we will still stay in touch3. Don’t be silly4. need to make a perfect plan5. Where would you travel6. It would be nice to go skiing7. I will take the train 8. so that you can come back三、阅读还原句子 1. C 2.D 3. A四、听力理解 1. computer 2. Japan 3. three weeks 4. hotel 5. Monday听力原文：W: Hi, John! I haven’t heard from you for a long time. How are you?M: I’m fine. I started a new job as a computer salesman six months ago. Last month I went to Japan. It was great.W: Wow! Japan! How long did you stay there?M: I stayed there for three weeks in a big hotel.W: Oh, it must cost a lot of money.M: Yes, but the company always pays for it.W: I’d love to have a job like yours.M: Well, actually, that’s the reason why I am calling you now. I need some help. Would you like to be my assistant, Laura?W: Great! When shall I start?M: Next Monday. You must come to my office before eight o’clock.Unit 2 We wouldn’t know what to do.一、阅读表达1. Yes.2. Tomato and egg soup.3. They are especially important.4. His mum5. Two.二、单项填空 1. B 2. A 3. D 4. D 5. B 6. C三、完成句子1. is as naughty as2. should depend too much on3. I didn’t learn any basic life skills4. as soon as I finish cooking5. Although I have gone to college6. there aren’t any new books at all四、书面表达Dear mum,I will go to an orphanage as a volunteer next Sunday. I imagine I would get up very early. After a quick breakfast, I would go there with my classmates. First, I would give the children some presents. Then I would sing and dance with them. I would also tell them some interesting stories. I would teach them some basic life skills so that they would depend more on themselves. After lunch, we would play games together. At 4 p.m., I would say goodbye to them and go back home. The children would be happy and I would be excited and would like to go there again some day.Best wishes,Yours,TonyModule 10 综合训练一、词语学习 (略)二、单项填空 1. C 2. D 3.B 4. C 5. A 6. C 7.B 8. D 9. A 10. B三、完成句子1. to see their daughter off2. I would lie on the beach3. It’s very important for us4. until she went to college5. he works as hard as6. need enough outdoor activities7. I’d like to depend on 8. that he couldn’t find the mistakes9. to finish drawing the picture 10. It’s not difficult at all四、完形填空 1. A 2. D 3. C 4. D 5. B 6. C 7.D 8. A 9. C 10. B五、书面表达Dear Mike,How are you getting on? The summer vacation is coming and I have a nice imagination for it. Maybe I。
人教新目标英语八年级下Unit 1检测试试题(附答案)
新目标英语八年级下册Unit 1单元达标检测题一、单项选择 (10分) 从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。
( ) 1. Maybe I shouldn't say that --I might get ________trouble.A for B. into C. by D.with( ) 2. As students, we ________ go to school and finish our homework on time.A. canB. wouldC. mayD. should( ) 3. Bill is in a difficult_________and doesn't know what to do.A. competition B .education C. situation D. discussion ( ) 4. — I have a toothache.— You should ______.A. eat somethingB. have a restC. eat some chocolateD. see a dentist( ) 5. —I’m ______. May I have something to drink?— Yes, here you are.A. thirstyB. hungryC. tiredD. sad( ) 6. Because you weren't at the meeting,we made the____________without you.A. resultB.serviceC. promiseD. decision( ) 7. It was so cold. Jane was afraid she would get________if she stayed here any longerA. tiredfortableC.sadD. sick( ) 8. — ______ is very important for us to learn English well.— You are right.A. ThisB. ThatC. ItD. Everyone( ) 9. There is something wrong with my ______. I can’t see the blackboard clearly.A. eyesB. headC. earsD. teeth( ) 10. Bob should ____ because he is very thirsty.A eat foodB drink waterC go to bedD take a walk二．完形填空（共10小题；每小题1分，满分10分）阅读下列短文，从每小题所给的A、B、C、D四个选项中选出一个最佳选项。
新目标人教版八年级英语下册第一、二单元检测题及答案
新目标人教版八年级英语下册第一、二单元检测题及答案新人教版八年级下册英语第一、二单元检测题（满分100分）UNIT 1 What’s the matter?Ⅱ.单项填空21. There’s rain on the road, so she should drive carefully.A.too muchB.too manyC.much tooD.many too22.My father likes tea nothing in it.A.ofB.withoutC.withD.have23.You should look after ,classmates.A.yourselvesB.yourselfC.herselfD.himself24.You shouldn’t m ake mistakes.A.in same wayB.at same wayC.in the same wayD.at the same way25.I saw him when I passed by.A.ranB.runC.runsD.running26.We should be careful when we the bus.A.get downB.get outC.get upD.get off27.―Did you catch your plane?―Yes. We got there just .A.on timeB.at timesC.in timeD.in the time28.He often thinks things before he makes a decision.A.aboutB.ofC.outD.over29. It is unhealthy for you ______ so late every night.A. sleepB. sleepingC. sleptD. to sleep30 ―What did you buy?―I bought ____ medicine for my mother.A. fewB. littleC. someD. many31. Smoking is bad for your health. You should .A.give up itB.give up themC.give it upD.give them up32.I don’t know if he tomorrow. If he , please let me know.A.will e;esB.will e;will eC.c omes;eses;will e33. I think I should keep on the guitar at home.A.playB.to playC.playedD.playing34.The cat is .You should take it to an animal hospital.A.deadB.deathC.dyingD.died35.The book is for us to read.A.good enoughB.enough goodC.too goodD.good tooⅤ.根据句意及首字母提示完成单词（10分）51.What’s the m with you?152.There’s something wrong with my t.I want to see a dentist.53.People use k to cut things.54.The p on the bus helped the old man together.55.He a lost his life on the mountain.56.We know the i of English study.57.D on’t take r. It’s dangerous.58.They made a d to visit Hainan.59.They will go to Hainan t .自己60.You have a fever and you should take your t .Ⅵ.用所给单词的适当形式填空（10分）61.He can stay there for ten hours without (move).62.She was ill and had to (go) to a doctor.[63.You shouldn’t always think about(you).64.We expect (visit) the Great Wall one day.65.He told me (not wait) for him.66.They agreed (help) each other.67.We should give up bad (habit).68.It is (importance) to study hard.69.He can keep on (swim)for two hours.70.They don’t mind(climb) the mountain.Ⅶ.句型转换（10分）72.I saw him yesterday. He was writing a letter.（合并为一句）I him a letter yesterday.73.Many people don’t want to he lp others because they don’t want any trouble.就画线部分提问）many people want to help others?74.He should see a dentist.（就画线部分提问）he ?75. I think he is a smart man. (改为否定句)I _____ ______ he _____ a smart man.76. Having a healthy lifestyle is very important. (改为同义句)It is important _____ ______ a healthy lifestyle.77. Put your hands in the cold water.(改为否定句)_____ ______ your hands in the cold water.78. I spend lots of time on my homework. (改为同义句)I spend _____ ______ _____ time ______ my homework.Jack is my friend. He likes playing puter games very much. He often sits in the same way for too long without moving. Now he has a headache, s ore eyes and a sore back. He doesn’t sleep well at night, so he feels tired every day.I think he should take breaks away from the puter. He shouldn’t use the puter for a long time. He should do eye exercises to relax his eyes and go to bed early at night.I think if he has a good rest, he will feel well soon.2第二单元I翻译下列短语：(15%)1.留在外面，不进人_________________2.打电话给某人_________________3.与．．．．．．相同______________________4.为．．．．．做好准备_____________5.过时的；落伍的______________________6.与某人争吵__________________7.为．．．付款；付钱____________________8.向某人借某物_________________9.给某人提建义________________________10.找出_____________________ 11.enough money_________________ 12.leave my homework at home_______13..have a fight with。
2020-2021学年八年级下学期期末目标检测(二)物理试题(word版 含答案)
2020—2021学年度第二学期八年级物理期末复习模拟检测试题（二）一、选择题（每小题3分，共21分）（本卷g 取10N/kg ）1．（2020辽宁沈阳）打篮球是同学们喜欢的体育运动。
关于它的描述正确的是（ ）A. 篮球抛出后，由于受到惯性力继续向前运动B. 篮球离手后，在空中飞行过程中，人对篮球做了功C. 篮球下落过程中，重力做功的功率不变D. 篮球由运动到静止，说明力可以改变物体的运动状态 2．（2020广西南宁）我国北斗三号全球卫星导的系統最后一颗组网卫星，于2020年6月成功发射并进入预定轨道，北斗系统将以更强功能服务全球｡下列说法正确的是（ ） A ．卫星相对太阳是静止的 B ．卫星加速升空时运动状态不变 C ．卫星通过超声波向地面传输信息 D ．地球对卫星有吸引力，同时卫星对地球也有吸引力 3．（2020四川成都）下列关于压强的说法中，正确的是（ ） A. 给自行车轮胎加气，胎内气体压强变小 B. 往装水的杯子中加盐，杯底受到的压强不变 C. 向桌上的空杯加水，杯子对桌面的压强变大 D. 人在站立时抬起一只脚后，人对地面的压强变小 4．（2020广东省）游泳时佩戴游泳圈是防止溺水的有效方法，质量为50kg 的小蓉佩戴游泳圈后，能静静地漂浮在水面上，如图所示，游泳圈对她的作用力大小最符合实际的是（ ）A ．5000NB ．500NC ．50ND ．5N5．（2020甘肃省金昌市）如图所示的生活用具中，使用时属于费力杠杆的是（ ） 班级 姓名 座号A. 羊角锤B. 筷子C. 起瓶器D. 钢丝钳6．（2020湖南长沙）小杰背着书包回家，在水平路面上行走100m用时100s，乘坐电梯从1楼到21楼用时30s，以下符合实际的是（）A. 电梯对小杰做功约3.6×103JB. 小杰乘坐电梯上升时，对书包不做功C. 电梯对小杰做功的功率约1200WD. 小杰在水平路面行走时，重力做功的功率约600W7.（2020重庆B卷）如图所示，是某建筑工地使用的一种起重机的滑轮组。
八年级数学目标复习检测卷及参考答案
八年级数学目标复习检测卷及参考答案通过做目标复习检测卷，可以加深对八年级数学知识的理解和巩固，形成熟练的技巧，有助于知识和技能的广泛迁移。
这是店铺整理的八年级数学的目标复习检测卷，希望你能从中得到感悟!八年级数学目标复习检测卷一、选择题(每小题4分，共40分)1.若，则的值为 ( )A.1B.C.±1D.2.下列各式计算正确的是( )A. B.C. D.3.已知直角三角形的一条直角边长为9，斜边长为10，则另一条直角边长为( )A. 1B.C.19D.4.已知：a= 则与的关系为( )A. B. C. D.5.若，则的值为 ( )A.1B.-1C.7D.-76.若，则的值是( )A. B.C. D.7.若关于的一元二次方程有实数根，则( )A. B. C. D.8.(广东珠海•3分)一元二次方程 +x+ =0的根的情况是( )A.有两个不相等的实数根B.有两个相等的实数根C.无实数根D.无法确定根的情况9.利华机械厂四月份生产零件万个，若五、六月份平均每月的增长率是，•则第二季度共生产零件( )A.100万个B.160万个C.180万个D.182万个10.(2015 • 山东泰安中考)某单位若干名职工参加普法知识竞赛，将成绩制成如图所示的扇形统计图和条形统计图，根据图中提供的信息，这些职工成绩的中位数和平均数分别是( )第10题图A.94分，96分B.96分，96分C.94分，96.4分D.96分，96.4分二、填空题(每小题4分，共32分)11. 计算的结果是 .12. 计算 =_______________.13.若，则 ________.14.若( 是关于的一元二次方程，则的值是________.15.若且，则一元二次方程必有一个定根，它是_______.16.(2015 • 湖北黄冈中考)若方程 -2x-1=0的两根分别为，，则的值为 .17.(2015 • 南京中考)某工程队有14名员工，他们的工种及相应每人每月工资如下表所示.工种人数每人每月工资/元电工 5 7 000木工 4 6 000瓦工 5 5 000现该工程队进行了人员调整：减少木工2名，增加电工、瓦工各1名.与调整前相比，该工程队员工月工资的方差______(填“变小”，“不变”或“变大”).18.(2015 • 成都中考)为响应“书香成都”建设的号召，在全校形成良好的人文阅读风尚，成都市某中学随机调查了部分学生平均每天的阅读时间，统计结果如图所示，则在本次调查中，阅读时间的中位数是_________小时.第18题图三、解答题(共48分)19.(6分)求证：关于的方程有两个不相等的实数根.20.(6分)已知关于的方程( 的两根之和为，两根之差为1，•其中是△ 的三边长.(1)求方程的根;(2)试判断△ 的形状.21.(8分)化简：(1) ;(2) .22.(9分)有一道练习题是：对于式子先化简，后求值，其中 .小明的解法如下： = = = = .小明的解法对吗?如果不对，请改正.23.(9分)(2015 • 山东东营中考)2013年，东营市某楼盘以每平方米6 500元的均价对外销售，因为楼盘滞销，房地产开发商为了加快资金周转，决定进行降价促销，经过连续两年下调后，2015年的均价为每平方米5 265元.(1)求平均每年下调的百分率;(2)假设2016年的均价仍然下调相同的百分率，张强准备购买一套100平方米的住房，他持有现金20万元，可以在银行贷款30万元，张强的愿望能否实现?(房价每平方米按照均价计算)24.(10分)(2015•天津中考)某商场服装部为了解服装的销售情况，统计了每位营业员在某月的销售额(单位：万元)，并根据统计的这组销售额数据，绘制出如图所示的统计图①和②.请根据相关信息，解答下列问题：① ②第24题图(1)该商场服装部营业员的人数为，图①中m的值为 ;(2)求统计的这组销售额数据的平均数、众数和中位数.八年级数学目标复习检测卷参考答案1.A 解析:若 ,则 ,故 .2.C 解析：A选项中× =48，错误;B选项中5 × =25 ，错误;C选项中4 × =8 ，正确;D选项错误.3.B 解析:由勾股定理得另一条直角边长为 .4.A 解析:由于 ,所以 .5.C 解析: 若 ,根据两个非负数的和为零,则这两个非负数均为零,得 ,且 ,即 ,且 ,所以 , ,故选C.6.C 解析：根据方程的特点，可考虑用换元法求值，设，原式可化为，解得，7.D 解析：把原方程移项， .由于实数的平方均为非负数，故，•则 .8.B 解析：∵ ，∴ 一元二次方程 +x+ =0有两个相等的实数根.9.D 解析：五月份生产零件 (万个)，六月份生产零件 (万个)，所以第二季度共生产零件 (万个)，故选D.10.D 解析：根据92分的有6人，占10%，可求出参加竞赛的职工总人数为60人.根据94分的占20%可求出94分的人数是60×20%=12(人).96分、100分的人数所占的百分比分别是=25%，=15%，从而求出98分的人数所占的百分比，进而求出98分的有18人.因为这组数据共60个，所以第30与31个数的平均数是这组数据的中位数，将这组数据按从小到大的顺序排列后，第30、31个数据都是96，故中位数是96分，再由加权平均数的计算方法，得 =96.4(分)，故选项D正确.11.3 解析: .12. 解析:13.14 解析：由，得 .两边同时平方，得，即，所以 .注意整体代入思想的运用.14.1 解析：由解得m=1.15. 1 解析：由，得，原方程可化为，解得x1=1，x2= .所以一元二次方程的一个定根为x=1.16.3 解析：因为，是方程 -2x-1=0的两根，所以 =2， =-1，因此 =2+1=3.17.变大解析：减少木工2名，增加电工、瓦工各1名后，14名员工的工资少了两个6 000，多了一个7 000和一个5 000，调整前后工程队员工月平均工资不变，均是6 000元，但调整后各数据与平均数的差的平方和变大了，所以方差变大了.18.1 解析：把一组数据按从小到大的顺序排列，在中间的一个数字(或中间两个数字的平均值)叫做这组数据的中位数.本题中阅读时间的中位数是1小时.19.证明：∵ 恒成立，∴ 方程有两个不相等的实数根.20.解：(1)设方程的两根分别为，则解得(2)当时，，所以 .当时,所以 .所以，所以△ 为等边三角形.21.解：(1) .(2) .22.分析：本题中有一个隐含条件，即，由此应将化简为 .对这个隐含条件的敏感度是正确解决问题的关键.解：小明的解法不对.改正如下：由题意得，∴ 应有 .∴ = = = = .23. 解：(1)设平均每年下调的百分率为x,根据题意，得6 500 =5 265，解得， (不合题意，舍去).答：平均每年下调的百分率为10%.(2)如果下调的百分率相同，2016年的房价为5 265 (1-10%)=4 738.5(元/ )，则100平方米的住房的总房款为100 4 738.5=473 850(元)=47.385(万元).∵ 20+30 47.385，∴ 张强的愿望可以实现.24. 解：(1)25;28(2)观察条形统计图，∵ = =18.6，∴ 这组数据的平均数是18.6.∵ 在这组数据中，21出现了8次，出现的次数最多，∴ 这组数据的众数是21.∵ 将这组数据按照由小到大的顺序排列，其中处于中间位置的数是18，∴ 这组数据的中位数是18.。
八年级下语文目标检测一、二、五单元详解
八年级（下）语文目标检测参考答案１藤野先生1．荟匿辞瞥诲驿髻诘xùn jī màn yǎo jūn pōu fēi wù2．C3．⑴表达了对中国留学生不学无术的厌恶和讽刺。
⑵表达了作者的满腔义愤和痛心。
⑶运用反语的修辞手法，表达作者对那些反动文人的厌恶与讽刺之情。
4．在东京的所见所闻。
5．只不过；失望。
6．看不惯清国留学生不学无术、醉生梦死的生活方式。
7．承上启下的过渡作用。
8．嘲笑。
9．由生活的关爱到精神上对他的支持。
10．不但、而且11．插叙、画龙点睛12．略２我的母亲1．B2．C3．D4．此题可概括叙述，也可答具体事例。
如：母亲听了“我”一句轻薄的话后，重重地责罚我；“用舌头舔我的病眼”，充分表现了“我的母亲”既是“严师”又是“慈母”。
5．谦逊。
“没有一个人管束过我”。
6．如果是表假设关系的连词，意在表明自己还不具备这些美德，表现了作者不溢美、不自夸的品格，同时也非常符合自传体的语体特点。
7．评价可见仁见智，积极面消极面均可。
可正面肯定母亲的教之严，简述理由；也可以辩证地看待母亲教子过于严厉，尤其是体罚带来的消极影响。
8．（1）形容心中有事，翻来覆去不能入睡。
（2）形容一点声音也没有。
9．出乎我意料之外的。
10．我心里暗自想念着，为着我要穿鞋，累母亲深夜工作不休，心上感到说不出的歉疚，又感到坐着陪陪母亲，似乎可以减轻些心里的不安。
12．（1）一片芽儿经过奋斗，长大，开放出明艳的花，是一个奋斗者的形象。
（2）不要只惊羡于别人成功时所得到的荣誉，而要了解他成功背后的艰苦努力，要学习他身上所具有的艰苦奋斗和勇于牺牲的精神，并从他的成功中汲取经验。
３我的第一本书1．C2. （1）悠——幽（2）密——秘（3）楞——愣（4）栽——裁3．B4．C5. 装订成了两本完完整整的书，补写的字跟印上去的一样好看。
６．⑵突出父亲的手巧，与他一夜将书补好出乎“我”的意料相呼应。
7．表现了对那本“书”的珍视铭记之情。
2021年初中英语人教新目标版八年级下册 Unit 9检测卷及答案
Unit 9 检测卷一、单项选择1. —I have never been to Tibet. What about you, Tina?—Me ____.A. tooB. alsoC. eitherD. neither2. Don’t talk loudly, or you will ____ the baby.A. wake upB. get upC. put upD. give up3. ____ you come, you can see beautiful flowers in our school yard.A. WhateverB. WhereverC. WheneverD. Whoever4. Laura bought this house ____ because it is close to the school.A. especiallyB. finallyC. simplyD. recently5. —Hello! Could I speak to Lily?—Sorry, she is not in. She ____ Shanghai.A. have been toB. have gone toC. has been toD. has gone to6. ____ people have lost their lives in this earthquake.A. ThousandsB. Thousand ofC. Thousands ofD. Ten thousands7. —Have you ever met a group of ____ on the bus?—Yes, I have.A. GermenB. GermansC. GermanD. Germens8. I ____ a tour guide for 7 months.A. becameB. wasC. have beenD. have become9. The man fears ____ in th e river because he can’t swim.A. playB. playsC. to playD. playing10. ____ you like swimming, fishing ____ boating, you’ll have fun in the water park.A. Whether; orB. If; orC. Either; orD. Both; and二、完形填空The first Disneyland in Europe was opened in France in 1992. At first, it was known___11___“Euro-Disney”. But it was renamed “Disneyland Paris” in 1994. It is now one of the most successful Disney theme___12___in the world with up to 70, 000___13___a day during the warm summer months. 学,科,网...The park has five different sections(部分)called “lands”. Each land has its own unusual and exciting features(特点). The five different lands are called Main Street USA, Adventureland, Frontierland, Fantasyland and Discoveryland. After___14___the lands, you can have a meal in one of the many restaurants in the park or you can meet___15___and Donald Duck. ___16___not visit Disney Village? In Disney Village you can relax and___17___the beautiful scenery, go shopping or visit a nightclub. For people who would like to stay for more than one day, there are seven___18___. The Newport Bay Club is one of these hotels and is, in fact, the___19___hotel in Western Europe.We know that you will love Disneyland because it has___20___for everyone. Book your trip of a lifetime now!11. A. for B. as C. with D. at12. A. places B. gardens C. museums D. parks13. A. children B. visitors C. players D. men14. A. living B. staying C. working D. visiting15. A. Superman B. Walt Disney C. Tom and Jerry D. Mickey Mouse16. A. What B. How C. When D. Why17. A. enjoy B. watch C. hear D. receive18. A. houses B. hotels C. places D. homes19. A. small B. larger C. largest D. smaller20. A. something B. everything C. anything D. nothing三、阅读理解Techeng Island(特呈岛)lies in the southeast of Zhanjiang. The villagers there used to make a living by fishing. But now, most of them make much money by doing business. They believe that their island is a gift from nature and they give thanks to it every day. In 2003, President Hu Jintao came to visit the island and pointed out that the government of Zhanjiang should take the is land into a “civilized new eco-tourism island”(文明生态旅游新海岛). Since then, the island has opened a new page in history.Today, the island has become a popular place for tourists. It takes you about 15 minutes to get there by boat from Maxie Pier(码头)near Haibin Park. But it is a just 8-minute boat ride from Zhanjiang Port Pier. In the resort(度假村), you can not only enjoy the fantastic sights but also have a lot of interesting things to do, like walking on the beach, visiting the museum and enjoying the delicious seafood. The best way to relax yourself is to enjoy the hot springs(温泉)there. Welcome to Techeng Island! It’s a place to be!21. How did the villagers in Techeng Island make a living in the past?A. By doing business.B. By enjoying the fantastic sights.C. By fishing.D. By giving thanks to nature.22. When has the island opened a new page in history?A. In 2003.B. Since 2003.C. Nobody knows.D. In the past.23. How long does it take to get there by boat from Zhanjiang Port Pier?A. 8 minutes.B. 15 minutes.C. A long time.D. 23 minutes.24. The hot springs can help you ____.A. enjoy the sightsB. relax yourselfC. eat seafoodD. visit the museum25. Techeng Island is a place that ____.A. lies in the west of ZhanjiangB. all the villagers live a poor lifeC. young people may find boringD. tourists like to visit四、词汇运用(Ⅰ) 根据句意及首字母或汉语提示完成单词26. It isn’t s____ to play soccer on the road.27. My friend has c____ a lot of coins(硬币).28. Look at the white ____ (狐狸). It’s so beautiful.29. My grandparents live in a small but ____ (安宁的)town.30. Everyone thought their performance was ____ (完美的).(Ⅱ)用所给词的适当形式填空31. —Where is Mr. Brown?—He ____ (go)to the library. He will come back in an hour.32. The worker ____ (plant)many trees the day before yesterday.33. We ____ (learn)English for more than two years.34. She had some problems ____ (get)on with her classmates last term.35. Hainan Island is a good place ____ (take)winter holidays.五、完成句子36. ——我从来没有去过新图书馆。
语文八年级下册《学习目标与检测》练习册的期中测试卷和答案
语文八年级下册《学习目标与检测》练习册的期中测试卷和答案1、“脍炙人口”中“炙”的读音是“jiǔ”。
[判断题] *对错(正确答案)2、棘手、机遇、极乐鸟、集腋成裘此组词语中加着重号的字的读音相同。
[判断题] *对错(正确答案)3、层层的叶子中间，零星地点缀着些白花，有袅娜地开着的，有羞涩的打着朵儿的......修辞格是（）[单选题] *比喻拟人(正确答案)夸张对比4、下列词语中，加着重号字的注音正确的一项是（）[单选题] *A、细腻（nì）硝烟（xiāo）凫水（niǎo）B、撅着嘴（juē）打点（dian）脱缰（jiāng）(正确答案)C、菱角（líng）虾篓（lǒu）苇眉（wéi）D、吮指头（sǔn）嘱咐（zhǔ）白洋淀（diàn）5、下列选项中加着重号字注音正确的一项是（）[单选题] *A、撑着zhǎng 彷徨páng 凄清qī雨巷xiàngB、彳亍chù凄婉wǎn 颓圮pǐ迷茫méngC、河畔pàn 荡漾yàng 青荇xìng 长篙gāo(正确答案)D、斑斓lán 沉淀dìng 似的sì泥古nì6、62. 下列选项中，文言现象与其它三项不相同的一项是（）[单选题] *A、便要还家。
(正确答案)B、渔人甚异之。
C、复前行。
D、心乐之。
7、1说明文常见的说明顺序有时间顺序、空间顺序、逻辑顺序。
[判断题] *对(正确答案)错8、下列词语中，加着重号字的注音不正确的一项是（）[单选题] *A、蠕动(rú)艾蒿(hāo) 聆听(líng)B、残羹(gēng)给予(jǐ) 湍急(tuān)C、悚然(sǒng) 允诺(nuò) 弹丸(dàn)D、侍坐(shì) 徘徊(huí) 凌驾(léng)(正确答案)9、1韩愈是唐代古文运动的倡导者。
八年级数学目标复习检测卷附答案
八年级数学目标复习检测卷附答案一、选择题共10小题，每题3分，共30分1.下列各式中是二次根式的是a.b.c.d.2.要使二次根式有意义，x的取值范围是a.x≠b.x>c.x≥d.x≥6-3.下列计算正确的是a.b.c.d.4.等式成立的条件是a.x>1b.x<-1c.x≤-1d.x≥15.△abc的三边分别为下列各组值，其中不是直角三角形三边的是a.a=41，b=40，c=9b.a=1.2，b=1.6，c=2c.a=，b=，c=d.a=，b=，c=16.例如图，平行四边形abcd中，e、f就是对角线bd上的两点，如果嵌入一个条件并使△abe≌△cdf，则嵌入的条件无法就是a.ae=cfb.be=fdc.bf=ded.∠1=∠27.若，，则x2-y2的值a.b.c.0d.28.△abc中，ab=15，ac=13，bc边上的高ad=12，则△abc的周长为a.42b.32c.42或32d.37或339.勾股定理是几何中的一个重要定理.在我国古算书《周髀算经》中就有“若勾三，股四，则弦五”的记载.如图1是由边长相等的小正方形和直角三角形构成的，可以用其面积关系验证勾股定理.图2是由图1放入矩形内得到的，∠bac=90°，ab=3，ac=4，点d，e，f，g，h，i都在矩形klmj的边上，则矩形klmj的面积为a.90b.100c.110d.12110.如图，ad为等边△abc边bc上的高，ab=4，ae=1，p为高ad上任意一点，则ep+bp的最小值为a、b.c.d.二、填空题共6小题，每题3分，共18分11.若是整数，则最轻的正整数a的值就是_________12.化简：=________;=________;=________;13.例如图，圆柱形容器杯低16cm，底面周长20cm，在距杯底3cm的点b处为一滴蜂蜜，此时蚂蚁在离杯上沿2cm与蜂蜜相对的a处为，则蚂蚁从a处爬到至b处的蜂蜜最短距离为________14.已知a、b为有理数，m、n分别表示的整数部分和小数部分，且amn+bn2=1，则2a+b=________15.例如图就是一个外轮廓为矩形的机器零件平面示意图，根据图中的尺寸单位：mm，排序两圆孔中心a和b的距离为_________mm16.如图，在等边三角形△abc中，射线ad四等分∠bac交bc于点d，其中∠bad>∠cad，则=________三、答疑题共8小题，共72分后17.本题8分排序：1218.本题8分如图，在平行四边形abcd中，∠c=60°，m、n分别是ad、bc的中点，bc=2cd1澄清：四边形mncd就是平行四边形2求证：bd=mn19.本题8分后1未知，，谋的值2求代数式20.本题8分如图①就是一个直角三角形纸片，∠a=30°，bc=4cm，将其卷曲，使点c 落到斜边上的点c′处，折痕为bd，例如图②，再将②沿de卷曲，使点a落到dc′的延长线上的点a′处，例如图③1求证：ad=bd2谋折痕de的长21.本题8分正方形网格中的每个小正方形边长都为1，每个小正方形的顶点叫格点，分别按下列要求画以格点为顶点三角形和平行四边形.1三角形三边短为4，、2平行四边形有一锐角为45°，且面积为622.本题10分如图，在平行四边形abcd中，ab=6，∠bad的平分线与bc的延长线处设点e、与dc处设点f，且点f为边dc的中点，∠adc的平分线交ab于点m，交ae于点n，相连接de1求证：bc=ce2若dm=2，谋de的长23.本题10分在四边形abcd中，ab=ac，∠abc=∠adc=45°，bd=6，dc=41当d、b在ac同侧时，谋ad的长2当d、b在ac两侧时，求ad的长24.本题12分如图，在平面直角坐标系则中，∠aco=90°，∠aoc=30°，分别以ao、co为边向外并作等边三角形△aod和等边三角形△coe，df⊥ao于f，连de交ao于g1求证：△dfg≌△eog2b为ad的中点，连hg，澄清：cd=2hg3在2的条件下，ac=4，若m为ac的中点，求mg的长一、1c2c3c4d5c6a7a8c9c10b9.提示：如图，延长ab交kf于点o，延长ac交gm于点p∴四边形aolp就是正方形，边长ao=ab﹢ac=3﹢4=7∴kl=3﹢7=10，lm=4﹢7=11，∴矩形klmj的面积为10×11=110二、11.512.;;13.14.2<<32<5-<3m=2，n=3-23-a+3-2b=16a+16b-2a+6b=1，∵a、b为有理数，∴6a+16b=1且2a+6b=0，解得a=1.5，b=-0.52a+b=3-0.5=2.515.15016.作dm⊥ab或nd⊥bc三、17.求解：1;218.证明：1∵abcd是平行四边形∴ad=bc，ad∥bc∵m、n分别就是ad、bc的中点∴md=nc，md∥nc∴mncd是平行四边形2例如图：相连接nd∵mncd是平行四边形∴mn=dc∵n是bc的中点∴bn=cn∵bc=2cd，∠c=60°∴△ncd就是等边三角形∴nd=nc，∠dnc=60°∵∠dnc是△bnd的外角∴∠nbd﹢∠ndb=∠dnc∵dn=nc=nb∴∠dbn=∠bdn=∠dnc=30°∴∠bdc=90°∴db=dc=mn19.解：18;2120.证明：1由凸状所述，bc′=bc=4在rt△abc中，∠a=30°，bc=4cm∴ab=2bc=8cm∴ac′=8-4=4cm∴ac′=bc′又∠dc′b=∠c=90°∴dc′为线段ab的垂直平分线∴ad=bd2∠edc′=30°在r t△dcb中，∠dbc′=30°∴dc′==在rt△dc′e中，∠edc′=30°∴de=dc′=21.例如图：22.证明：1ae平分∠bad∠dae=∠bae=∠afd∴ad=fd又∠efc=∠afd，∠fec=∠fad∴∠efc=∠cef∴ce=cf∵f为cd的中点∴ce=cf=df=ad=bc2连接fm则四边形adfm为菱形∴dm⊥af，dn=mn=1∴an=nf=，en=在rt△dne中，23.解：1过点a作ae⊥ad交dc的延长线于e∵∠adc=45°∴△ade为等腰直角三角形∵ab=ac，∠abc=45°∴△abc为全等直角三角形可以证：△abd≌△acesas∴ce=bd=6，de=10∴ad=de=2过点a作ae⊥ad且使ae=ad，相连接ce由此可知：△abd≌△acesas ∴bd=ec=6，∠cde=∠adc﹢∠ade=90°在rt△cde中，∴ad=de=24.证明：1∵∠aoc=30°∴∠goe=90°设ac=a，则oa=2a，oe=oc=在等边△aod中，df⊥oa∴df=∴df=oe由此可知：△dfg≌△eogaas2连接ae∵h、g分别为ad、de的中点∴hg∥ae，hg=ae根据共顶点等腰三角形的转动模型可以证：△doc≌△aoesas∴dc=ae∴dc=2hg 3连接hm∵h、m分别为ad、ac的中点∴hm=cd∴hm=hg又∠dhg=∠dae=60°+∠oae=60°+∠odc∠ahm=∠adc∴∠mhg=180°-∠ahm-∠dhg=180°-∠adc-60°-∠odc=120°-∠adc-∠odc=120°-∠aod=60°∴△hmg为等边三角形∵ac=4∴oa=od=8，oc=，cd=∴mg=hg=cd=猜你感兴趣：。
人教版新目标英语八年级下册：Unit 4《Why don’t you talk to your parents》检测题(含解析)
Unit 4 Why don't you talk to your parents附详细参考答案一、单项选择（每小题1分，共25分）（）1．—Has she had for the job?—Yes, she has taught English for more than 10 years.A. enough experienceB. enough experiencesC. many experiencesD. much experiences（）2．—I feel stressed from time to time. Could you give me some advice?—________ sharing your worries with your parents?A. How aboutB. Why don’t youC. Why notD. Would you like （）3．--Can I come this afternoon or tomorrow morning?-- is OK.I’m free today and tomorrow.A. EitherB. NeitherC. BothD. None（）4．---- Do you think the English class is _____________?---- Yes, I enjoy it very much.A．interested enough B．interesting enoughC．enough interested D．enough interesting（）5．I have a lovely doll. You can also buy ______ in a toy shop.A. itB. oneC. anotherD. that（）6．You don't know the way. Why ______ the policeman for help?A. don't askB. no askC. not askD. not to ask （）7． ------What kind of ticket do you have?------ We have tickets $105 the hard sleeper.A. at; forB. for; atC. at; to（）8．It’s a busy street. There are a lot of shops on ______ side of it.A.eitherB. allC. bothD. neither（）9．--My brother and I will go to the library tomorrow.--____. Shall we go together?A. So I doB. So do IC. So will ID. So I will （）10．Look out! Can you see some boy students ____ basketball?A. playsB. playC. playedD. playing （）11．— Mum, do you mind my listening to music for a while?—. But please listen to it with your earphone.A. Yes, pleaseB. No, thank youC. Not at allD. Yes,I do（）12．—Alan, it’s late. Why not go to bed?—Jenny hasn’t come back yet. I ______ for her.A. waitedB. have waitedC. am waitingD. waswaiting（）13．—It’s too hot. Why not go swimming with us? —___________ .A. Good idea!B. That’s right!C. Well done!D.Congratulations!（）14．I can hardly hear what it is saying on TV. Would you please ________?A. turn it upB. turn it downC. turn it offD. turn iton（）15．-- Sorry, sir. I made a mistake again.-- ________ Practice more and you will do better.A. Yo u’re w elcomeB. I’m not sure.C. Never mind.D. Don’tmention.（）16． - It's said that Mo Yan's speech was wonderful.- That's true. We clapped our hands ________ many times during his speech yesterday.A. excitedB. excitedlyC. excitingD. excitingly（）17．We will wait until everyone ________ back.A. comesB. comeC. will comeD. is coming（）18．May I speak to Xiaofang? ______,please. I am going to ask her to come.A. Hold the lineB. Don’t callC. Put down（）19． He feels lonely because he has no close friends ____.A. to talkB. to talk withC. talkingD.talking with（）20．1. Miss Yang explains things very well and what she says can be understood ______.A.quietlyB. differentlyC. slowlyD.clearly（）21．—I will take an important test tomorrow. —Oh, really? _______!A. Good luckB. Have a good timeC. Well doneD. Good idea （）22．—Excuse me, could you tell me ________?—There is a bank on the second floor. You can make it there.A. where I can exchange moneyB. how I can get to the bankC. if there’s a bank near hereD. where the bank is（）23．You are not young children any more. You three should learn to look after _______ well.A. yourselfB. youC. yourselves（）24． The Greens will have _______ holiday in China.A. two weeksB. two weekC. two-weekD. atwo-week（）25．—Do you like Chinese food or Western food?—I would rather _________ Chinese food. Let’s have noodles.A. hasB. haveC. havingD. to have二、完形填空（每小题2分，共20分）Mr. Zhou is a Chinese teacher of Grade 1 in a school. One day when he 26 into the classroom, he heard a low 27 , “Here is the teacher. I don’t like him because he is an 28 fellow (家伙) . I’m sure th e unfair fellow is going to29 putting in commas (逗号) today.” It was Bill’s voice. He was talking witha boy next to him.The teacher didn’t get angry. He said 30 about it, but began to talk about putting commas, and then he 31 down on the blackb oard the sentence, “Bill says his 32 is an unfair fellow.” The class laughed and Bill’s face 33 red.“Now,” said the teacher. “I’ll show you 34 important commas are.”He put 35 commas into the sentence and then read, “Bill, says his teacher, is an unfair fellow.”（）26．A. walks B. will walk C. was walking（）27．A. voice B. noise C. sound（）28．A. active B. unfair C. interesting（）29．A. talk about B. think about C. know about（）30．A. something B. nothing C. anything（）31．A. wrote B. put C. turned（）32．A. friend B. brother C. teacher（）33．A. felt B. turned C. became（）34．A. how B. what C. what an（）35．A. one B. two C. three三、阅读理解（每小题2分，共20分）（1）Mr. and Mrs. Turner live outside a small town. They have a big farm and theyare always busy working on it. Their son, Peter, studied at a middle school. The young man studied hard and did well in his lessons. It made them happy.Last month Peter finished middle school and passed the entrance examination (升学考试). Mrs. Turner was very happy and told the farmers about it.Yesterday morning the women went to the town to buy something for her son . on the bus she told one of her friends how clever and able her son was. She spoke very loudly. All the people in the bus began to listen to her.“Which university will your son study in?” a woman next to her asked.“In the most famous university in our country!” Mrs. Turner said happily.“The most famous university?”“Oxford University(牛津大学).”Most of the passenger looked at her carefully. Some of them said to her, “Congratulations!(祝贺)”A woman said , “I’m sure he will know Fred Smith.”“Who is Fred Smith?”“He is my son.”“Does he study in the university, too?”“No.” said the woman. “He is one of the professors(教授)”（）36．The story happened in ________.A. AmericaB. FranceC. GermanyD.England（）37．Mr. and Mrs. Turner were happy because ________.A. their son did well in his lessonsB. they have a bigfarmC. they have a good harvestD. their son studied at amiddle school（）38．Mrs. Turner wanted everyone to knowA. her son finished middle schoolB. her son was handsomeC. her son was going to study in a universityD. her son was veryfriendly to others.（）39．Mrs. Turner spoke so loudly in the bus that .A. her friend could hear herB. all the people couldhear herC. she hoped to make all the people happyD. she hoped they would saycongratulations to her（）40．Which of the following is true? __________.A. The woman wasn't interested in Mrs. Turner's wordsB. Mrs. Turner knew nothing about the famous universityC. The woman wanted to stop Mrs. Turner from showing offD. The woman next to Mrs. Turner wanted to show off her son, too（2）Good news for you! Our new school library is open to everyone, and the libraryA. 26B. 36C. 42D. 50（）42．What can you enjoy in the reading room?A. MagazinesB. Language cassettes.C. Video films.D. CDs. （）43．How much should you pay if you keep three videos for a week?A. 1 yuan.B. 2 yuan.C. 3 yuan.D. Nothing. （）44．How long can you keep one cassette at a time?A. One day.B. One week.C. Two days.D. Two weeks. （）45．Which of the following is True according to the form?A. The library card will cost you one yuan.B. You can borrow as many CDs as you like at a time.C. You can borrow five books at a time and keep them for three weeks.D. There is a special room for you to enjoy music videos in the library.四、补充句子（每小题2分，共20分）补全对话。
782-27 答案
2007---2008学年第二学期教学目标检测八年级数学参考答案 之七一、 填空题（每小题5分，共40分）1、x ≠21 2、2.008×10-3 3、k >0 4、4 5、363 6、42 7、8,7 8、2 二、选择题（每小题5分，共40分）9、C 10、A 11、B 12、D 13、B 14、B 15、B 16、B三、解答题（每小题8分，共40分）17、解：设甲工程队每周铺设管道为x 千米，则乙队每周铺设管道为1.5x 千米，根据题意得x 18-x5.118= 3 解得， x=2 ，经检验 x=2是原方程的根,∴1.5x=1.5×2=3 答：略。
18、解：∵点A （3，2）在y=x m 上，∴m=6，∴反比例函数解析式为y=x6； 又∵点B （-2，n ）在y=x 6上，∴n=-3，∴点B 的坐标为（-2，-3）， 又∵点A （3，2）、B （-2，-3）在y=kx+b 上，∴，解得，∴一次函数的解析式为y=x-1。
19、解：∵∠B =90°，∠BAC =30°，∴BC=21AC ，设BC=x ，则AC=2x ，又∵AB=3， ∴(2x)2=x 2+(3)2 , ∴x=1, ∴BC=1,AC=2, 又CD=2,AD=22,∴AC 2 +CD 2 =8, AD 2 =8，∴AC 2 +CD 2 =AD 2,∴ΔACD 是直角三角形，∴∠ACD =90°.20、解：ΔACE 是等腰三角形。
证明：∵四边形ABCD 是矩形，∴ AD ∥BC ，AC=BD ，又AE ∥BD ，∴四边形AEBD 是平行四边形，∴AE=BD ，∴AE=AC ，即ΔACE 是等腰三角形。
21、解：∵x 甲 =101（40+…+39.8）=40 ，x 乙 =101（40+…+39.9）=40 ， ∴S 2甲 =101[（0）2 +…+(-0.2)2 ]=0.026 ，S 2乙 =101[(0)2 +…+(-0.1)2 ]=0.008，∵S 2甲 >S 2乙 ，∴乙机床的性能更好些。
2021年初中英语人教新目标版八年级下册 Unit 8检测卷及答案
Unit 8 检测卷一、单项选择1. Ever since then, we ____ good friends.A. beB. isC. wasD. have been2. There are ____ soccer fans in the world.A. millionB. three millionsC. million ofD. millions of3. Do you know who this building ____ ?A. belongB. belongsC. belongs toD. is belonging to4. Mr. Wang has taught Chinese ____ in England for about 2 years.A. sandB. abroadC. islandD. land5. Liu Huan is a famous singer, but Cindy ____ to any of his songs yet.A. listenB. doesn’t listenC. has listenedD. hasn’t listened6. — ____ Miss Brown ____ out all of her records?—No, not yet.A. Have; soldB. Has; soldC. Does; sellD. Is; sell7. People often use it ____ ships.A. buildB. buildsC. to buildD. building8. The picture ____ page 1 was drawn by my art teacher.A. atB. inC. toD. on9. When they arrived ____ the island, they were all attracted by its beauty.A. atB. inC. onD. to10. —I think drinking milk is a good way ____.—Yes, I agree.A. keep healthB. to keep healthC. to keep healthyD. keep healthy二、完形填空It was my first day at Grade 6. And the first lesson was___11___English. When I was doing nothing, Mr. Gough, our new English teacher, ___12___into the classroom.To my surprise, he held up a book, The Collected Works of Edgar Allan Poe, and asked “Who___13___it yet”. I put my hand up, because Poe was my favorite writer. Mr. Gough asked if I really understood___14___the author tried to say in his book. My reply made him smile, and he asked me___15___an essay on that subject. 学,科,网...After that, English classes became a new interest for me. Mr. Gough thought that students had to___16___a play to understand it. “Don’t just read it,” he said.As time passed, we developed a real friendship. He encouraged me to be a___17___in the future. When I left sch ool, he said to me, “You have a gift for writing, Tony, and one day you’ll come to realize how___18___it is. Make use of it if you want your life to be complete.”___19___ has passed. Now every time I sit down to write___20___, I think of Mr. Gough. He was more than just an English teacher, because he also taught me useful lessons in life.11. A. boring B. bored C. interesting D. interested12. A. walks B. walked C. was walking D. is walking13. A. reads B. read C. have read D. had read14. A. if B. when C. what D. how15. A. wrote B. writing C. to write D. written16. A. work out B. act out C. put out D. come out17. A. teacher B. actor C. waiter D. writer18. A. useful B. beautiful C. careful D. thankful19. A. A year B. Some year C. Years D. Every year20. A. anything new B. something newC. new anythingD. new something三、阅读理解Lu Xun is one of the greatest Chinese writers of the 20th century. Besides his famous stories, he also wrote many influential articles about the living conditions of Chinese people.Born in 1881 to a wealthy family, Lu Xun had a happy childhood. In 1893, however, his grandfather, a senior government official, was put into prison for taking money. At the same time, his father became seriously ill. From that time on, his family was no longer accepted by their relatives and friends. These early experiences greatly influenced his writing.By the time Lu Xun arrived in Nanjing to study at university in 1899, he already believed that Chinese society had to change and become modern. In 1902 he went to study in Japan. There he began writing articles for several Chinese student magazines. He showed a gift for writing and translating and he even wrote several books, although none was popular. He returned to China in 1909 because he was in need of money.After working for several years as a teacher in Beijing, Lu Xun again returned to writing. In 1918, he wrote his famous short story Diary of a Madman. It was the first Chinese novel published using the everyday language that people spoke, which helped make it a great success. This, together with his novel The True Story of Ah Q(1921), made Lu Xun a leading Chinese writer.A lthough successful, Lu Xun still worried greatly about China’s future. In 1927, he moved to Shanghai and gave up writing stories in order to devote himself to what he called “pen warfare”. He only wrote articles which called on the people to fight against the government. For this, the government stopped him from publishing any more books. He was forced to write his articles using false names.Since his death in 1936, Lu Xun’s importance and influence have grown. Today, many of his writings are included in school textbooks and his works are read by millions of people around the world.21. Which of the following greatly influenced Lu Xun’s writing according to the passage?A. The people he met in Japan.B. The experiences in his early life.C. Working as a teacher in Beijing.D. His father’s being put into prison.22. According to the passage why was Lu Xun’s story Diary of a Madman so popular?A. It was based on Lu Xun’s diary.B. It was the first novel to use everyday language.C. Its story took place in modern times.D. It was written using a western style.23. The underlined word “This” (Paragraph 4) refers to ____.A. the success of Diary of a MadmanB. the use of everyday languageC. the first Chinese novelD. The True Story of Ah Q24. After moving to Shanghai, Lu Xun mainly wrote ____.A. funny storiesB. articles about himselfC. articles against the governmentD. stories about government officials四、词汇运用(Ⅰ)根据句意及首字母或汉语提示完成单词。
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第十四章生物多样性第一节生物的命名和分类一．填空题1．1753，林奈，二名法。
2．两，属名，种名，拉丁，属名。
3．形态，结构，生理特性。
4．界、门、纲、目、科、属、种，种。
5．原核生物界、原生生物界、菌物界、植物界、动物界二．选择题1．C，2．D，3．A第二节病毒一．填空题1．动物病毒，植物病毒，真菌病毒，细菌病毒（噬菌体）。
2．其他生物活细胞中，增殖。
3．球状，杆状，丝状。
4．俄国，烟草花叶病，细菌。
5．细菌，病毒二．选择题1．B，2．B，3．B，4．D，5．A，6．C三．识图作答1.①蛋白质外壳②核酸。
2.细胞，蛋白质，核酸。
四．简答题参考答案：①接种人痘、牛痘预防天花。
②16世纪荷兰种植者利用嫁接法使郁金香感染病毒，开出美丽杂色花朵。
③1885年，巴斯德研究出狂犬疫苗。
第三节原核生物界一．填空题1．是否有细胞结构。
2．无成形细胞核。
3．球状，杆状，螺旋状。
4．鞭毛、荚膜等附属结构5．细菌，蓝菌。
6．成形的，原核生物。
7．荷兰，列文·虎克二．选择题1．B，2．D，3．C，4．D，5．B三．简答题1.参考答案：绝大多数细菌对人类有益，如食品工业中制造醋、味精等调味品；烹调和取暖用的天然气是数百万年前生活在湖底和沼泽淤泥中的细菌产生的；酸奶、泡菜以及很多腌制食品的制作也离不开细菌；豆科植物根瘤里的根瘤菌有固氮作用；分解动植物残骸，维持地球上的物质循环。
少数种类有害，如一些致病菌使人生病；大肠杆菌等细菌造成食品污染。
2.参考答案：开窗通风、熏蒸白醋、喷洒消毒液。
第四节原生生物界一．填空题1．藻类，原生动物，原核生物。
2．有真正（成形）的细胞核，真核生物。
3．色素，绿藻，褐藻，红藻。
4．叶绿体，鞭毛，原生。
5．圆柱，螺旋盘绕，带，液泡，细丝。
6．过多，藻类，赤潮二．选择题1．D，2．D，3．D，4．A，5．B第五节菌物界一．填空题1．黏菌，真菌，真菌，6万。
2．真正（成形）的细胞核。
3．菌丝，菌丝。
4．物质循环，生态平衡。
5．叶绿体，腐生，寄生。
6．酵母菌，有机物（淀粉），二氧化碳二．选择题1．D，2．B，3．C，4．C，5．D三．简答题参考答案：霉菌中含有毒素，容易造成食物中毒。
第六节植物界一．填空题1．根，茎，叶，输导，机械。
2．食用，药用，绿肥，观赏，煤炭。
3．孢子，孢子。
4．裸子植物，被子植物，裸露的，果皮，裸子植物，被子植物。
5．最多，复杂，最广，最强。
6．2片，1片。
7．叶，孢子囊。
二．选择题1．D，2．A，3．C，4．C，5．A，6．B，7．B，8．C，9．A，10．C，11．B，12．C，13．C，14．A，15．D，16．C三．分析说明题1．假根、叶多由一层细胞组成、茎中细胞分化简单，所以苔藓植物吸水保水能力弱，对环境的变化敏感。
2．裸子，蕨类，苔藓，被子四．1-------A--------d2------D--------b3-------B------c4--------C-----a第七节动物界一．填空题1．身体是否有脊柱。
2．无脊椎。
3．节肢动物，3/4。
4．蝴蝶，蝗虫，蜜蜂，蚂蚁。
5．脊椎，水中。
6．青蛙，蟾蜍，水，鳃，水，陆地，肺。
7．扬子鳄。
8．褐马鸡，黑颈鹤，金雕。
9．哺乳动物，胎生，哺乳。
10．腔肠，肛门，消化腔。
11．柔软，外壳。
12．体节，外骨骼，分节。
13．头，胸，腹，保护，蜕皮。
14．储存气体，肺，皮肤。
15．两，两，动脉，静脉，增强。
二．选择题1．A，2．A，3．B，4．C，5．C，6．C，7．B，8．C，9．C，10．B，11．C，12．D，13．C，14．D，15．B，16．D，17．A，18．B，19．B，20．A三．连线题A——b，B——a，C——d，D——c，E——e，F——g，G——f四．识图题C，4，动脉血，静脉血第十五章生命起源和生物进化第一节生命的起源一．填空题1．神创论，自然发生说，化学进化过程。
2．化学进化。
3．简单有机物，有机物，原始生命。
4．35，细胞化石，38，40。
5．原始海洋。
6．法，巴斯德，自然发生说。
二．选择题1．B，2．B，3．A，4．C，5．B，6．C，7．D三．是非题1．错，2．错四．思考题参考答案：外星球可能会有生命的存在。
第二节生物的进化一．填空题1．漫长的生物进化过程，生命世界。
2．大海阻隔使地雀在不同环境中分别演变成不同类型。
3．遗体、遗物、生活遗迹。
4．德国，被覆羽毛，有翅膀，有喙，爬行动物，始祖鸟。
5．辽宁，始祖鸟，孔子鸟。
6．爬行动物。
7．生物的化石。
8．原始生命，无核单细胞生物，单细胞生物，原始藻类，原生动物。
9．藻类——蕨类——裸子植物——被子植物，苔藓植物，菌物。
10．鱼类——两栖动物——爬行动物——鸟、哺乳动物11．身体高大、四肢加长，适应草原环境。
12．地壳中不同年代的岩石形成的时间和先后顺序。
13．水生，陆生，简单，复杂，低等，高等。
14．变异，相似，定向，积累。
15．有利变异，有利变异，不利变异，适者生存优胜劣汰。
16．遗传。
1．A ，2．D ，3．D．B ，9．B ，10．C ，11．D ，12．C ，13．B ，14．C ，15．B ，16．D三．识图题1．⑪哺乳类，爬行类，两栖类。
⑫被子。
2．e第三节 人类的起源与进化一．填空题1．外星来客，女娲造人，上帝造人。
2．长臂猿，猩猩，黑猩猩，大猩猩，森林古猿。
3．干燥寒冷，直立行走。
4．能人，马坝人，尼安德特人。
5．黑种人，白种人，黄种人。
6．智人种。
二．选择题1．C ，2．C ，3．A ，4．A ，5．D ，6．C ，7．A ，8．A ，9．B ，10．B ，11．B ，三．简答题1.参考答案：体形：分头、颈、躯干和四肢四部分；体腔：有膈，被分为胸腔和腹腔；心脏：两心房两心室；血液循环：体循环和肺循环；生殖发育：体内受精，胎生，哺乳；体温：恒定。
2.参考答案：①下肢骨逐渐粗壮，趾逐渐变短，脚板逐渐长得宽阔。
②胸廓左右径逐渐加大，前后径逐渐减小。
③骨盆逐渐变得宽阔。
第十六章 生物与环境第一节 环境对生物的影响一．填空题1．生物个体，群体，总和，生存，发展。
2．水，阳光，空气，温度，土壤。
3．同种生物，斗争，互助，食物缺乏。
4．不同种生物，捕食，寄生，互助。
5．寄生。
6．种间竞争。
二．选择题1．C ，2．B ，3．A ，4．C ，5．B ，6．C ，7．A ，8．C ，9．B ，10．A第二节 生物对环境的适应和影响一．填空题1． 相互作用的，环境因素，其生存环境相，影响，改变。
2．环境性，营养性，防御性。
3．拟态，警戒色。
二．选择题1．B ，2．C ，3．D ，4．B ，5．B ，6．C ，7．D ，8．A ，9．C第三节 生态系统一．填空题1． 捕食，被捕食，食物链，食物网。
2．二氧化碳。
3．光合，生物呼吸，分解尸体遗物，燃料燃烧二．选择题1．B ，2．D ，3．B ，4．D,5．D ，6．A ，7．B ，8．D ，9．D ，10．C ，11．B三．识图题1．⑪草，兔子。
⑫分解者，阳光。
⑬兔、鼠，生态平衡。
2． ○2 ○3 ○1 ○4 ○5 ○6第四节 人与生物圈一．填空题1．大气圈，水圈，岩石圈。
2．大熊猫，朱鹮，金丝猴，1999。
3．生物，矿物，水资源，生态系统，能源危机，生态环境二．选择题1．D ，2．C ，3．D ，4．B1．参考答案：引导学生例举“少开车，提倡绿色出行”“节水、节电、节粮”等方面的具体实例。
2．参考答案：农业害虫没有了天敌会大量繁殖，造成农业害虫灾害，损毁庄稼。
3．参考答案：不乱扔垃圾，不随地吐痰，彻底打扫教室卫生等。
第十七章生物技术第一节传统生物技术的应用一．填空题1．微生物，发酵。
2．巴斯德，微生物二．选择题1．C，2．A三．袋装牛奶--------巴斯的消毒法肉肠-------------真空包装法腊肉类熟食-----晒制法、烟熏法果脯--------------渗透保存法咸鱼--------------腌制法肉类罐头---------罐藏法干蘑---------------脱水法第二节现代生物技术的发展一．填空题1．沃森，克里克，DNA，分子生物学。
2．生殖细胞，受精，体细胞。
3．DNA，基因，DNA二．选择题1．B，2．C，3．A，4．B第十四章目标形成性检测题一．选择题1．D，2．B，3．D，4．C，5．D，6．B，7．A，8．C，9．A，10．B，11．D，12．D，13．D，14．A，15．B，16．B，17．A，18．A，19．C，20．C，21．B，22．A，23．B，24．D，25．D二．填空题1．动物病毒，植物病毒，真菌病毒，细菌病毒。
2．淀粉，蛋白质，二氧化碳。
3．木耳，灵芝，蘑菇。
4．机械，输导。
5．茎叶体，假根，孢子。
6．身体背部具有起支持作用的脊柱，脊椎。
7．无脊椎动物，虾，蜘蛛。
8．动物尸体。
9．生态平衡。
10．简单到复杂，水生到陆生。
三．书26页四．舌具钩--------啄木鸟---------啄凿树干，攀援跳跃喙足均有弯钩---------猫头鹰--------夜间捕食无飞翔能力-----------鸵鸟-----------在沙漠中疾走奔跑趾间有蹼------------野鸭----------可在水面浮游，有迁飞习性五．简答题1．参考答案：哺乳动物的形态结构最复杂，生理功能最完善，适应能力也最强，因此是脊椎动物中最高等的类群。
2．参考答案：昆虫的身体有很多体节构成，分为头、胸、腹三部分，整个身体覆盖着外骨骼，起到保护作用；头部有一对触角，胸部生有三对足两对翅，使昆虫运动灵活，更加适应周围的环境；腹部两侧一般有气门，用气管呼吸，适应陆地生活；体内受精增加了受精几率，繁殖力强，卵生产生后代数量多。
因此昆虫的分布最广，种类最多，适应能力最强。
3．参考答案：①体形为流线型，体表被羽毛，可减少空气阻力；尾羽可在飞行中保持平衡。
②前肢变为翼，适于飞行。
③骨骼轻而坚固，运动灵活，胸骨有龙骨突，供发达的肌肉附着。
④有与肺相连通的气囊，进行特有的双重呼吸，提高呼吸效率，适于高空飞行。
⑤心脏两心房两心室，完全的双循环，提高运输氧气能力，适于高空缺氧环境。
⑥可在飞行过程中排泄，减轻体重。
⑦体温高而恒定，抵御高空低温。
第十五章目标形成性检测题一．选择题1．C，2．B，3．C，4．A，5．D，6．A，7．C，8．B，9．A，10．A，11．D，12．C，13．D，14．D，15．C，16．C，17．D，18．C，19．A，20．B二．填空题1．生物进化。
2．化石。
3．水生到陆生，简单到复杂，低等到高等。
4．人工选择，自然选择。
5．有利，不具有有利，产生不利，自然选择。
6．增长，粗壮，变短，长得宽阔。
三．识图作答题1．⑪①动物，②藻类，③菌物，④苔藓植物，⑤蕨类植物，⑥裸子植物，⑦被子植物。