八年级下学期周考试卷(1)
八年级物理周考一
物理（周考一）姓名1、用密绕法测细铜丝直径，如图所示，一种是密绕在锥形圆珠笔上，一种是绕在圆柱形铅笔上，两种方法测量结果相比较（）A．甲偏大B．甲偏小C．甲、乙一样D．都有可能2、A、B两辆车以相同速度v0同方向作匀速直线运动，A车在前，B车在后.在两车上有甲、乙两人分别用皮球瞄准对方，同时以相对自身为2v0的初速度水平射出，如不考虑皮球的竖直下落及空气阻力，则（）A. 甲先被击中B. 乙先被击中C. 两人同时被击中D. 皮球可以击中乙而不能击中甲3、甲、乙、丙三辆汽车同时在一条南北方向的大街上行驶．甲车上的人看到丙车相对于甲车向北运动，乙车上的人看到甲、丙两辆车都相对乙车向南运动，而丙车上的人则看到路边上的树木向北运动．关于这三辆车行驶的方向，以下说法中正确的是（）A．甲车必定向南行驶B．乙车必定向北行驶C．丙车可能向北行驶D．三辆车行驶的方向可能是相同的4、如图所示，两木块自左向右运动，现用高速摄影机在同一底片上多次曝光，记录下木块每次曝光时的位置。
已知连续两次曝光的时间间隔是相等的。
两木块运动情况在图象中描述正确的是（）5、一只蜜蜂和一辆汽车在平直公路上以同样大小的速度并列运动.如果这只蜜蜂眼睛紧盯着汽车车轮边缘上某一点(如粘着的一块口香糖),那么它看到的这一点的运动轨迹是（）6、某同学学过“长度的测量”知识后，想研究一个测量项目（如图所示），某市场的一楼与二楼间的高度不能直接测量，他用直尺测出一个“踏步”的宽和高分别是a和b，然后用软绳顺着“踏步”从A点铺到B点，所用绳长L，则一、二楼间的高度为（）7、有六名同学，使用同一刻度尺测量同一作业本的长度，六次测量记录是：L1=18.82cm；L2=18.83cm；L3=17.28cm；L4=18.81cm；L5=18.80cm；L6=18.805cm。
则：（1）这把刻度尺的分度值是：______。
（2）其中一位同学测量结果错误的是______。
鲁教版英语(五四制)八年级下册 周考(一)试题
八年级英语试题本试卷分第Ⅰ卷和第Ⅱ卷两部分，考试时间100分钟。
第I卷（选择题共55分）第一部分听力（共25小题；1-20每小题1分；21-25每小题2分；满分30分）（一）听句子，选择适当的应答语。
每个句子读两遍。
1. A. Don't worry. B. Nice to meet you. C. You are welcome.2. A. See you later. B. Come on. C. Here you are.3. A. Nothing serious. B. Sounds great. C. Yes, please.4. A. That's all right. B. Sorry to hear that! C. Enjoy yourself!5. A. So cool. B. Good idea. C. Not at all.（二）听五段对话，选择正确答案。
每段对话读两遍。
6. What's the population of your city now?A. It's 578 thousand.B. It's 735 thousand.C. It's 875 thousand.7. When will the meeting come to the end?A. In an hour.B. Maybe at noon.C. About 10 o'clock.8. What does the woman tell us to do to fight pollution?A. Put litter away.B. Use plastic bags for shopping.C. Put litter in the dustbin. Don't use plastic bags for shopping.9. What's the possible relationship between the two speakers?A. Classmates.B. Mother and son.C. Husband and wife.10. What does the man mean?A. He knows the way to the lake.B. He'd like to come.C. He thinks it is too hot for a walk. （三）听两段长对话，选择正确答案。
广西壮族自治区钦州市第四中学2022-2023学年八年级下学期第六周考试道德与法治试卷
广西壮族自治区钦州市第四中学2022-2023学年八年级下学期第六周考试道德与法治试卷一、单项选择题（本大题共25小题，共50分）1.以下属于宪法规定公民的基本义务有①遵守宪法和法律②维护国家安全、荣誉和利益③人身自由④依法服兵役A.①③④B.①②④C.②③④D.①②③2.下列没有履行公民义务的是（）①有人在网上高价出售我国军事机密②小明趁执行部队任务时，借机逃离部队③小军向有关部门举报当地某官员不作为乱作为④疫情期间，经常报道出抗拒戴口罩与拒绝检查的事件A.①②③B.①③④C.①②④D.②③④3.作为中国公民，我们应履行的义务有（）①依法服兵役②遵守宪法和法律③维护国家安全、荣誉和利益④监督国家机关工作A.①②③B.①②④C.①③④D.②③④4.法定义务须履行。
下列行为属于公民自觉履行法定义务的有（）①遵守宪法和法律②依法纳税③为灾区捐款捐物④维护国家统一和民族团结A.①②B.①③C.②④D.①②④5.下列选项中，属于我国公民应该履行的基本义务的有（）①维护国家统一和各民族团结②参加选举③依法纳税④依法服兵役⑤维护国家安全、荣誉和利益A.①②③B.①③④⑤C.④⑤D.②③④6.小明参军前是一个勤奋好学的学生，复员到电厂工作，工作十分努力并多次被评为先进工作者。
他每月寄600元给乡下年迈的父母，并自觉缴纳个人所得税。
小明履行的义务有（）①受教育权②劳动的义务③依法服兵役④依法纳税⑤赡养扶助父母的义务⑥受父母抚养的义务A.①③④⑤⑥B.③④⑤⑥C.②③④⑤D.①②③④⑤7.某市几位“90后”青年因逃避服兵役，受到“不得录用为公务员，两年内禁止出国（境）和升学”的严肃处理。
这表明（）①依法服兵役是公民的基本义务②享有权利是履行义务的前提③公民要自觉履行法律规定的义务④权利与义务是统一的，权利不可放弃⑤法律要求的必须去做，法律禁止做的我们不能做A.①②④B.①③⑤C.②④⑤D.①④⑤8.下列行为属于我国宪法规定的公民基本义务有（）①小伟年满18周岁，参加了区人大代表的选举②林华依法纳税③刘霖自觉遵守交通规则④陈泉信仰佛教A.②③B.①②C.③④D.①④9.下列选项中，属于我国公民应该履行的基本义务的是（）①维护国家统一和全国各民族团结②依法服兵役③参加人大代表的选举④爱护公共财产A.①②③B.①③④C.②③④D.①②④10.大学生庄某寻找兼职工作时，被用人单位要求“采集某军港附近地图信息”，并获得相应报酬。
辽宁省沈阳市第七中学牛津深圳版英语2019-2020学年八年级下册周测试八
2019-2020学年度下学期英语学科第八周周考一．单项选择(每小题2分，共10分)( )1.----I’ve just finished my report on English culture.----When________you_______it ?Two hours ago.A. have, finishedB. do , finishC. will, finishD. did, finish( )2. Great changes ___________place in Shenyang in the last few years.A. have been takenB. have takenC. tookD. were taken( )3.Mary is not here now. She ___________to the Summer Palace.A. has goneB. has beenC. wentD. is going( )4. He speaks too fast for ___________ to follow.A. everyoneB. someoneC. anyoneD. no one( )5. I have some fruit at home. I ___________ buy more.A. don’t needB. needn’tC. needn’t toD. need not to二．完型填空：（每小题2分，共30分）The captain stood on the high wall of the city of Troy. “The Greeks have gone 1 we’ve won,” he said. “They’ve tried to capture our city 2 ten years. Now they’ve 3 and sailed away!”“But look over there.” a soldier said. “They’ve left a huge wooden horse.”“Ah, yes,” the captain said, “it’s too big. The Greeks didn’t want to take it with 4 . Get some help and 5 it into the city.”That night, in the main square of the city, 6 the Trojans celebrated. They sang and danced around the 7 , and made jokes about the 8 Greeks. “ I haven’t laughed like 9 since my childhood,” the captain said. After the 10 , they locked all the gates of the city and 11 all went to sleep.By midnight, the main square was empty, 12 the huge horse. Suddenly a secret door 13 on the side of the wooden horse.The horse was full of Greek soldiers! They 14 climbed out of the horse one by one.The soldiers opened the main gates. The Greek army entered the city.For ten years, the Greeks could not capture the city by 15 . In one night, however, they succeeded in capturing it through a clever trick.( ) 1.A. but B. still C. and D. or( ) 2.A.before B. after C. since D. for( ) 3. A. put up B given up C. looked up D. taken up( ) 4. A. themselves B. them C. himself D. him( ) 5.A. bring B. drive C. take D. pull( ) 6.A. all B. none C. both D. neither( ) 7.A.elephant B. cow C. horse D. sheep( ) 8.A. smart B. great C. strange D. stupid( ) 9.A. this B. that C. it D. one( )10.A. jokes B.songs C. party D. game( )11. A. so B. then C. just D. already ( )12.A. except B.besides C. except for D. as well as ( )13.A. closed B.showed C.opened D. locked ( )14.A. happily B. angrily C. hardly D. quietly ( )15.A. buying B. fighting C. cheating D. communicating 三．阅读选择：（每小题2分，共10分）根据完型填空的短文内容选择最佳答案：（）1.The Greek army disappeared because_______________.A.they were afraid of the TrojansB.they wanted to play a trick on the TrojansC.they were tired of the fightD.they won the war( )2. The Greeks left a wooden horse because_________________________A. it was too hugeB. it was too heavyC. it was a wasteD. the Greek soldiers hid in it.( )3. The Trojans thought the Greeks were____________________A. funnyB. stupidC. helpfulD. strange( )4. The Greek soldiers in the wooden horse waited until midnight because_________then.A. they could break the gatesB. all the Trojans would be asleepC.all the Trojans would leave the cityD. it was easy to fight in the dark( )5. The Greeks could not capture the city of Troy for ten years because ______________A.they could not get inside the cityB.the Trojans were cleverer than the GreeksC.they hadn’t built a wooden horse before.D.they were weaker than the Trojans四．句型转换(每空2分，共30分)1.The Greek army entered the city.The Greek army _________ _________ the city.2.They all went to sleep after locking the doors.They all __________ __________ after locking the doors.3.They have had a good time here.They have __________ ___________here.4.He has returned the book to me.He has ___________ the book __________ to me.5.He is 175cm tall. His best friend is also 175cm tall.He is __________ ____________ ___________his best friend.He is __________ ____________ ___________ ___________ his best friend.五．阅读回答问题（每小题2分，共10分）1. When and where was she born?_______________________________________________________________________________ 2.Where does she live？4. How long will she stay abroad?_______________________________________________________________________________ 5.How many ways can we contact(联系) with her?_______________________________________________________________________________六。
广西2023年八年级地理下学期网络考试试卷
选择题读地球公转示意图，完成问题【1】地球绕太阳公转一周所需要的时间是，地球自转的方向是。
A.365天自东向西B.一年向左C.一年自西向东D.一天向右【2】每年3、4、5三个月北半球是季。
A.春B.夏C.秋D.冬【3】冬至日时，地球公转处在位置（填A、B、C、D），此时来宾市白昼最（填“长”或“短”）；当全球昼夜平分时，太阳直射在（填重要纬线）当地球运行至A位置时，北半球是季（填“季节”），北极圈内出现现象（填极昼或极夜），南半球的昼夜长短状况是昼短夜长，此时北半球的节气是。
A.C 长赤道夏极夜夏至日B.A 长赤道夏极夜冬至日C.C 短赤道夏极昼夏至日D.B 短赤道夏极昼夏至日【答案】【1】C【2】A【3】C【解析】【1】地球时刻都在运动，包括自转运动和公转运动，公转一周的时间是一年，自转的方向是自西向东，故选C。
【2】每年的3、4、5三个月，太阳直射点从赤道向北回归线移动，北半球各地正由寒冷的冬季进入温暖的春季，故选A。
【3】冬至日时，地球是位于图中公转轨道上的C处，太阳直射在南回归线上，位于北温带的来宾市这一天进入一年中白昼时间最短的一天；当全球昼夜平分时，太阳直射在赤道上；当地球运行到A处时，是夏至日，太阳直射在北回归线上，北半球各地进入一年中气温最高的夏季；北极圈会出现极昼现象，南半球则昼短夜长，故选C。
本题考查地球公转有关知识，要知道地球在公转轨道上四个位置时的地理现象。
选择题如图是某地等高线地形图，下列说法正确的是（）A. a处海拔高于b处B. a，b两地相对高度400米C. a处坡度比b处缓D. 河流自西南流向东北【答案】D【解析】根据等高线地形图的判读，进行分析解答。
等高线向海拔高处凸为山谷，山谷处容易形成河流；读图可知，河流从高处流向低处，说明b地海拔高于a地，故选项A错误；图中的等高距不能确定，无法判断a、b两地的相对高度，故选项B错误；a 处等高线密集，故a处坡度比b处陡，故选项C错误；根据指向标判断，河流自西南流向东北，故选项D正确；根据题意。
广西钦州市第四中学2022-2023学年八年级下学期第四周考试道德与法治试卷
广西钦州市第四中学2022-2023学年八年级下学期第四周考试道德与法治试卷一、单项选择题（本大题共25小题，共50分）1.下列行为属于公民应自觉履行法定义务的有（）①李勇主动参军②林华按时纳税③刘霖自觉遵守交通规则④陈泉坚决保守国家秘密A. ①②③B. ①②④C. ②③④D. ①②③④2.以下不属于我国公民基本义务的是（）A. 遵守宪法法律B. 维护国家利益C. 政治自由D. 依法服兵役和依法纳税3.明明是一个品学兼优的好学生，高中毕业后积极响应国家号召参了军，复员后到工厂工作，每月领工资后自觉缴纳个人所得税。
材料中的明明履行了①受教育的义务②依法服兵役③劳动的义务④依法纳税的义务⑤保护环境的义务⑥遵守公共秩序A. ②③④⑥B. ③④⑤⑥C. ①②③④D. ①②④⑤4.某省几位“90后”青年因逃避服兵役，受到“不得录用为公务员，两年内禁止出国（境）和升学”的严肃处理。
这表明（）①享有权利是履行义务的前提②法定义务具有强制性③公民要自觉履行法律规定的义务④权利与义务是统一的，权利不可放弃A. ①③B. ①④C. ②④D. ②③5.作为公民，我们依法享有权利，也应自觉履行义务。
下列关于公民基本义务的认识正确的有（）①公民基本权利是由宪法和法律规定的②自觉履行依法纳税的义务，利国利民③赡养扶助父母是子女成年后才履行的义务④每个公民都有依法服兵役的基本义务⑤履行维护国家利益的义务，也是爱国的表现A. ①③④B. ③④⑤C. ②③⑤D. ②④⑤6.小明参军前是一个勤奋好学的学生，复员到电厂工作，工作十分努力并多次被评为先进工作者。
他每月寄600元给乡下年迈的父母，并自觉缴纳个人所得税。
小明履行的义务有( ) ①受教育②劳动的义务③依法服兵役④依法纳税⑤赡养扶助父母的义务⑥受父母抚养的义务A. ①③④⑤⑥B. ③④⑤⑥C. ②③④⑤D. ①②③④⑤7.下列对权利和义务认识正确的是（）①任何公民享有宪法和法律规定的权利，同时必须履行宪法和法律规定的义务②公民的某些权利同时也是义务③法定义务必须履行，否则，可能构成违法甚至犯罪④公民实施了法律所禁止的行为或没有实施法律要求做的行为，都必须依法承担相应的法律责任。
八年级语文下册文言文模拟综合试卷1
八年级语文下册文言文模拟综合试卷1一、文言文1．文言文阅读【甲】自渴①西南行不能百步，得石渠，民桥②其上。
有泉幽幽然，其鸣乍大乍细。
渠之广或咫尺，或倍尺，其长可十许步。
其流抵大石，伏出其下。
逾石而往，有石泓，吕蒲被之，青鲜环周。
又折西行，旁陷岩石下，北堕小潭。
潭幅员减百尺，清深多鯈鱼。
又北曲行纡余，睨若无穷。
然卒入于渴。
其侧皆诡石、怪木、奇卉、美箭③，可列坐而庥④焉。
风摇其巅韵动崖谷视之既静其听始远。
予从州牧得之。
揽去翳朽，决疏土石，既崇而焚，既酾⑤而盈。
惜其未始有传焉者，故累记其所属，遗之其人，书之其阳，俾后好事者求之得以易。
(选自柳宗元《石渠记》)【乙】钴鉧潭在西山西。
其始盖冉水自南奔注，抵山石，屈折东流；其颠委势峻，荡击益暴，啮其涯，故旁广而中深，毕至石乃止。
流沫成轮，然后徐行，其清而平者且十亩余，有树环焉，有泉悬焉。
其上有居者，以予之亟游也，一旦款⑥门来告曰：“不胜⑦官租、私券之委积，既芟⑧山而更居，愿以潭上田贸财⑨以缓祸。
”予乐而如其言。
则崇⑩其台，延其槛，行其泉，于高者而坠之潭，有声潀然11 。
尤与中秋观月为宜，于以见天之高，气之迥。
孰使予乐居夷而忘故土者？非兹潭也款？(选自柳宗元《钴鉧潭记》)【注释】①渴：指袁家渴，一泉水名。
②桥：建桥、架桥。
③箭：小竹。
④麻：同“休”，休息。
⑤酾(shī)：疏导，分流。
⑥款：叩，敲。
⑦胜：承受。
⑧芟(shān)：割草。
⑨贸财：以物变卖换钱。
⑩崇：加高。
11 潀(cóng)然：水声淙淙的样子。
⑩居夷：住在夷人地区。
(上述文章均为柳宗元被贬谪永州时所作)（1）参考《古汉语常用字字典》中的解释，谈谈“亟”字在文中的表达效果。
“亟”的义项：①jí急，赶快。
②qì(气)，屡次其上有居者，以予之亟游也。
（2）请用“/”给文中画线的句子断句(限断三处)。
风摇其巅韵动崖谷视之既静其听始远。
（3）用现代汉语写出下面句子的意思。
孰使予乐居夷而忘故土者？非兹潭也欤？（4）柳宗元的山水游记上承郦道元《水经注》，而又有所发展。
黑龙江省安达市吉星岗镇第一中学2017-2018学年八年级下学期第七周周考英语试题(无答案)
黑龙江省安达市吉星岗镇第一中学2019--2019学年八年级下学期第七周周考英语试题I. 单项填空( )1. The man jumped into the river quickly and the main reason was ____ his drowning son.A. to saveB. savingC. saveD. to saving( )2. —What do you think of the talent show you saw yesterday?—Oh! It’s one of ____ talent shows I’ve ever seen.A. interestingB. more interestingC. most interestingD. the most interesting( )3. Bill jumped ____ than any other player at the sports meeting.A. tallB. tallerC. highD. higher( )4. —Some of the animals ____ the pollution.—Right. The government will find ways to solve the problem.A. die toB. die inC. die ofD. die from( )5. Traveling by train is ____ exciting than a rushed trip by air.A. muchB. a littleC. much moreD. little( )6. The police tried to protect the foreign officers ____ personal injury.A. toB. atC. fromD. in( )7. There were many young children ____ in the factories in the past.A. workB. workingC. worksD. to work( )8. The teacher thinks ____ chores ____ necessary for every student.A. do; areB. doing; isC. does; areD. to do;is( )9. ____ is the population of China today?A. How muchB. How manyC. WhatD. Which( )10. Lanzhou is the only capital city that the Yellow River, the second ____ river in China, passes through.A. longB. longestC. longerD. length( )11.Shanghai is________the east of China and Japan is ________the east of China.A.in ;inB.to ; toC.to ; inD.in ; to( )12. —How does your father go to work?—On foot. Our house __________ his office.A. is different fromB. is close toC. is far fromD. is the same as( )13.— __________ do you think is the best performer? —Mary. Of course.A. WhoB. WhenC. WhatD. Why( )14.There isn’t an airport near here. The _______ one is about 90 miles away.A. busiestB. farthestC. newestD. nearest( )15. —No ocean in the world is __________ the Pacific Ocean.—That’s right! It’s the biggest ocean in the world.A. big thanB. biggest thanC. as big asD. as bigger as( )16. There is no living thing on_______moon.A.theB.aC.不填( )17.The population of China ______ large. About four fifths of the population _______farmers.A.is;areB.are;isC.are;areD.is;be( )18. There ______still some milk in the fridge. It’s necessary to go to the store today.A.amB.isC.areD.be( )19.Thank you _____for having us.A.a lot ofB.a lots ofC.lots ofD.a lot( )20.You are tired. You _____go to the party.A.shouldB.shouldn’tC.needD.aren’t( )21.Alan is as ______as Lucy in their class.A.tallB.tallerC.tallestD.the taller( )22.I ______my breakfast when the telephone rang.A.hadB.was havingC.were havingD.have had( )23.There is a book on the desk, and ______is an English book.A.thatB.oneC.itD.those( )24.There are many trees on _______ side of the river.A.bothB.allC.eachD.every( )25.The boy is too young to ______himself.A.look upB.look afterC.look atD.look like( )26.He is _____and he needs some help.A.dangerousB.in dangerousC.in dangerD.out of danger( )27. _____ he practices, _____he does.A.Much; betterB.The much; the betterC.The more; the betterD.The more; the well( )28.If there is _____pollution, the air in our city will be ______dirtier.A.less;moreB.more;muchC.less;lessD.more;more( )29.Jenny is one of ______girls in our school.A.creativeB.the creativeC.much creativeD.the most creative( )30.This picture book is not so interesting as that _____.A.thatB.oneC.itD.thoseII. 完形填空A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 36 in Hong Kong, these trees were cut down and burnt. Now there is 37 forest left, though there are still some small areas covered with trees. We call these woods.Elephants, tigers and many 38 animals were living in the thick forest. When people came to live in Hong Kong, the 39 began to die out. Early farmers grew rice and 40 pigs and chickens in the valleys. They cut down the trees and burnt them. They needed 41 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. 42did most of the wolves and tigers. Monkeys and many other animals soon 43 in the same way.You might think that there are no longer any animals in Hong Kong 44 in the zoos. But there are still about 36 different animals 45 there. One of the most interesting of Hong Kong’s animals is the barking deer. These are beautiful little animals 46 a rich brown coat and a white patch under the tail. They look like deer but they are much smaller. They are less than two feet 47 .They make a noise rather like a dog 48 .In Hong Kong the barking deer has only a real enemy—49 .People hunt these little animals though it is illegal. There are now not many barking deer left. So it is important 50 people to protect wild animals.31.A.work B.study C.live D.enjoy32.A.many B.a few C.no D.not33.A.other B.others C.the other D.another34.A.people B.animals C.plants D.things35.A.grew B.made C.got D.kept36.A.fire B.hotness C.heat D.stoves (炉子)37.A.So B.Such C.As D.Nor38.A.lived B.died C.came D.left39.A.besides B.except C.and D.or40.A.live B.to live C.lived D.living41.A.have B.without C.with D.get42.A.high B.higher C.short D.shorter43.A.shouting B.crying C.barking D.talk ing44.A.tigers B.men C.wolves D.elephants45.A.to B.for C.like D.ofIII. 阅读理解National parks are large areas of public land．They give a safe home for local plants and animals．They help keep the air and water clean．They also give us the best trips．Today，there are nearly 7，000 national parks around the world．Forbes has listed 12 of the most beautiful ones in the world that will surprise you with their amazing landscapes，geographic wonders and colorful plants and animals．The Grand Canyon（大峡谷）National Park of the US is one of the Seven Natural Wonders of the World．It is best known for its size and depth．It is 446 kilometers lon g，up to 29 kilometers wide．and 1.6 kilometers deep．The immensity of the canyon makes people think big．Every year，about 5 million people visit here．Taking a tour in the South Rim offers visitors the park’s full views，while the North Rim shows beautiful wild flowers．If you love animals，you’ll like the Serengeti National Park in Tanzania．The“Big Five”live here．They are the lion，African elephant，African leopard，black rhinocero and African buffalo．The name“Big Five”came from the five animals that were the hardest to catch．Now they are what people most want to see in the wild．If you visit the park，you should never miss the migration（迁徙）of over 1.5 million wildebeests（角马）and 250，000 zebras every year．This is the most famous site of the park．46．Which is NOT right about national parks according to Paragraph 1？A．Wild plants and animals are protected in national parks．B．Forbes has listed twelve of the world’s largest national parks．C．National parks are attractive because of their natural beauty．D．A national park is public land that covers a large area．47．The underlined word“immensity”refers to________．A．natural wonder B．colorful view C．unusual beauty D．great size48．________kinds of animals are mentioned in the passage．A．Six B．Seven C．Eight D．Five49．The best title for the passage may be“________”．A．Traveling to the Serengeti National Park B．Seven Natural Wonders of the WorldC．Stepping into the wonders of the wildlife D．Taking a tour in the Grand Canyon50．If the writer continues the article．he would most likely write about________．A．more national parks in the world B．his wonderful trip to the Grand CanyonC．famous historic wonders in Africa D．ways to keep the air and water cleanIV.用所给单词的适当形式填空51.December is the ________（twelve）month of a year.52.The movie Mr. Bean is a very_______（succeed）comedy.53.She brushes her _______（tooth）every morning.54.My father usually exercises three _______（time）a week.55.Screen City has the______（big）screens.56.Don’t worry. I can look after______（me）.57.I think there will be ________（few）people in every family in the future.58.Yang Liwei is one of the__________（hero）in China.59.WWF cares for wild animals in__________（dangerous）.60.I’m________（interest）in collecting stamps.V.依据句意及首字母提示完成单词61.The Sahara is the biggest d__________in the world.62.China is the biggest country in A__________.63.The p________is increasing at about 6% per year.64.Qomolangma is the most d________mountain in the world.65.Many climbers risk their l_______.66.We should c_______ourselves in the face of difficulties.67.The spirit of these climbers shows us that we should never give up trying to a_________ our dreams.68.Humans can sometimes be stronger than the f________of nature.69.The Caspian Sea is the d__________of all the salt lakes.70.When the baby sees her mother, she runs over with e________.VI.句型转换71.This room is smaller than that one.（改为同义句）This room is not_______big_________that one.72.It’s such a great country.（改为同义句）It’s___________________country.73.The little boy can look after himself well.（改为同义句）The little boy can____________________________himself.74.He is taller than any other student in his class.（改为同义句）He is____________________student in his class.75.Lily is six. Lucy is eleven.（改为同义句）Lily is____________younger than Lucy.VII.书面表达有一大批外国人来北京参观。
人教版2020-2021学年度第二学期第5周考试 八年级历史试卷(含答案)
2020-2021学年度第二学期第5周考试八年级历史试卷(试卷满分100分，考试时间80分钟)一、单项选择题（本大题30小题，每小题2分，共60分）每小题列出的四个选项中只有一个是正确的。
请将答题卡上对应题目所选的选项涂黑。
1．北京，2008年奥运会的举办地，新中国成立前她的名字叫做北平，北平到北京的变化与下列那一事件有关（）A．第一届政治协商会议的召开 B．开国大典C．西藏和平解放 D．第一届全国人民代表大会召开2．1949年9月，在中国人民政治协商会议第一届全体会议上，毛泽东说：“占人类总数四分之一的中国人从此站起来了”。
“中国人民从此站起来”是指中国实现了（）全境解放 B．社会主义 C．国家富强 D．民族独立3．1949年，“人民”开始成为较为流行的政治词汇。
从“人民解放军”“人民银行”到使用的“人民币”乃至每天走过的“人民路”“人民广场”等，“人民”一词频繁地出现在生活的方方面面，这表明我国（）完全消灭了封建剥削制度 B．已经进入社会主义社会C．人民代表大会制度已经确立 D．人民真正成为国家的主人4．坐落在辽宁省丹东市的抗美援朝纪念馆中，在醒目的位置陈列着两个著名人物的雕塑，其中一位是毛泽东，另一位应是（）A．林彪 B．刘伯承 C．邓小平 D．彭德怀5．1949年中国革命取得了伟大胜利，为什么在建国之初还要将这首充满危机意识的歌曲定为国歌？你能用一个成语来概括原因吗？A．勿忘国耻 B．发人深省 C．居安思危 D．知耻后勇6．下图是新中国成立后建成的人民英雄纪念碑。
碑身正面的题词是“人民英雄永垂不朽”，底座上的十幅浮雕（如金田起义、武昌起义、南昌起义、胜利渡长江等），反映的史实见证了中国近代民主革命的历程。
建立此碑的意义在于（）A．标志着新民主主义革命胜利B．庆祝中华人民共和国的成立C．缅怀革命先烈，传承英雄精神，珍惜美好生活D．宣告中华民族以独立姿态屹立于世界民族之林7．“斗地主”是现在非常流行的大众化的QQ网络游戏，其实“地主”作为一个阶级在我国早已被消灭，“地主阶级”被消灭是在A．中华人民共和国成立时B．社会主义制度建立后C．1952年土地改革完成后D．文化大革命结束之时8．建国初期的土地改革，广大农民获得的最重要的权利是对土地有（）A．使用权 B．管理权 C．经营权 D．所有权9．一首民歌中唱道：“穷人翻身来当家，分了土地！呀喜洋洋，土地还家呀生产忙；过去的生产被剥削，现在生产呀自己享……”这是在下列哪一文件颁布后实现的A．《中国人民政治协商会议共同纲领》B．《中华民国临时约法》C．《中华人民共和国土地改革法》D．《中华民国约法》10．抗美援朝战争中，英勇的志愿军将士们谱写了无数可歌可泣的英雄壮歌，邱少云就是其中的一个典型代表。
周考试卷(八年级数学).doc
周考试卷（八年级数学）姓名 __________一、选择题（每小题3分，共30分）1、 下列说法正确的是（ ）.A. 轴对称涉及两个图形，轴对称图形涉及一个图形B. 如果两条线段互相垂直平分，那么这两条线段互为对称轴C. 所有直角三角形都不是轴对称图形D. 有两个内角相等的三角形不是轴对•称图形 2、 点M （1, 2）关于兀轴对称的点的坐标为（ ）.A. （-1, -2）B. （-1, 2）C. （1, -2）D. （2, -1） 3、 下列图形屮对称轴最多的是（ ）.A.等腰三角形B.正方形C.圆D.线段4. 如图（1）谢线BA,CA 相交于点A,连接BC,已知AB 二AC,ZB=40°,则ZCAE 的度数为（）A.40°B.60°C.80°D.1OO 07、如图⑶所示，/是四边形ABCD 的对称轴，AD 〃BC,现给出下列结论:①AB 〃CD ；②AB 二BC ；③AB 丄BC ； @AO=OC 其中正确的结论有（）.5、若等腰三角形的周长为26cm , 一边为11cm,则腰长为（A. 11 cmB. 7.5cmC. 11cm 或 7.5 cmD.以上都不对6、如图（2）： DE 是A ABC 中AC 边的垂直平分线,若BC=8厘米, AB=10厘米,则AEBC 的周长为（ ）厘米. A. 16 B. 18 RC. 26D. 288.等腰三角形ABC在直角坐标系中，底边的两端点坐标是（・2, 0）, （6, 0）,则其顶点的坐标，能确定的是（）•A.横坐标B.纵坐标C.横坐标及纵坐标D.横坐标或纵坐标9.下列图形:①两个点;②线段;③角;④长方形;⑤两条相交直线;⑥三角形，英中一定是轴对称图形的有（）A.5 个B.3 个C.4 个D.6 个A10.如图2:在Z\ABC中,DE垂直平分AB,AE平分ZBAC,若ZC=90°,WijZB 的度数为（）/A.30°B.20°C.40°D.250 B E C12345678910一、填空题（每题3分，共32分）11.线段轴是对称图形，它有______ 条对称轴，正三角形的对称轴有__________ 条.12.下面是我们熟悉的四个交通标志图形，请从儿何图形的性质考虑，哪一个与其他三个不• • • •同？请指岀这个图形，并说明理rh.答：这个图形是：_________ （写出序号即可），理由是_________________________ .13.等腰AABC中，若ZA=30。
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八年级下学期数学周考试卷（一）
班级 姓名 得分
一、选择题：（每小题5分，共30分）
1. 在x 1、21、212+x 、πxy 3、y
x +3、33-+a a 中分式的个数有（ ） A 、2个 B 、3个 C 、4个 D 、5个
2.下列各式中是最简分式的是（ ） A. 2224(2)a b a b -+ B. 2
3ab b - C . 22x y x y ++ D. 2222x y x y --
3.与分式 a
m n -- 相等的分式是 ( ) A. a m n - B. a m n -+ C. a m n + D . a m n -+
4.若分式1
12--x x 的值为0，则x 的取值为（ ） A.1=x B.1-=x C.1±=x D.无法确定
5．下列各式中，无论x 取何值，分式都有意义的是（ ）
A ．121x +
B ．21x x +
C ．231x x +
D ．2221
x x + 6. 下列运算结果正确的是 （ ）
A. 3
333344x x y y
⎛⎫= ⎪⎝⎭ B 4453m n m n m n ⋅= C. 222224a a a b a b ⎛⎫= ⎪--⎝⎭ D. a c a c b d b d ÷= 二、填空题：（每小题5分，共25分）
7.当x 时，分式5
1-x 有意义；
8. 在括号里填上适当的整式，使等式成立。
（1） () 1422=-+a a （2）()2x y xy xy
+= 9、不改变分式的值，把分式
0.30.20.5x y x y +-的分子分母的各项系数都化为整数得 。
10．(1)分式
212xy 和253x yz 的最简公分母是 ； （2）分式122x y +和221x y
-的最简公分母是 。
11、化简216312
m m --得 ；当m =-1时，原式的值为 。
三、解答题：（共45分）
12、计算（每小题7分，共35分）
（1） y x a xy 28512÷ （2） 221.1a a a a -+ （3）3
232⎪⎪⎭⎫ ⎝⎛-c b a
（4）23
223b b a a a b -⎛⎫⎛⎫⎛⎫÷⋅- ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭ （5）2223x y mn ·2254m n xy ÷53xym n
13、（10分）化简求值：22121a a a -++÷21
a a a -+ ，其中 1a =。