八年级单元卷
人教版八年级物理上册单元测试卷(全套附答案)
物理试卷（第一章 声现象）一、 单项选择题（每题3分，共24分）1、在电视机的遥控器上，有以下几个按钮（图标），如下图，其中控制音量（响度）大小的是： （ ）A ．B ．C ．D ． 2、晚上当你在家复习功课，准备期中考试时，邻居正在引吭高歌，对你的学习产生干扰，则下列措施中无效的是： （ ） A ．与邻居协商使其减小音量 B ．打开窗户让空气加速流动 C ．紧闭室内的门窗 D ．用棉花塞住自己的耳朵 3、在一只玻璃杯中先后装入不同量的水，用细棒轻轻敲击，会听到不同频率的声音。
与此类似，当医生在给病人检查腹部是否有积水时，常会用手轻轻敲击患者腹部，细细倾听其发出的声音，此为“叩诊”。
这主要是根据什么来判断腹部是否有积水的？ （ ） A ．声音的响度 B ．声音的音调 C ．声音的音色 D ．声音是否悦耳动听 4、在城市高架道路的某些路段可以看到两侧设有3m ～4m 高的透明板墙，如图1所示，安装这些板墙是为了（ ） A ．保护车辆安全行驶 B ．阻止车辆排放的废气外泄 C ．体现高架道路设计的美观 D ．阻挡车辆产生的噪声，减小噪声的污染 5、剧院及音乐厅，四周墙壁常挂呢绒帘幕，同时墙壁会做成凹凸不平的像蜂窝似的，这是为了 （ ） A ．装饰、美观 B ．易于反射声波，增大声音 C ．吸收声波，减小嘈杂的回声 D 、提高声音的音调 6、请你用物理学的准确用语来“翻译”生活用语，有利于我们把握事物的 本质，“引吭高歌”和“低声细语”，这里的高与低指的是 （ ） A ．音色好坏 B ．音调高低 C ．响度大小 D ．乐音三要素 7、我国已进行“神舟”五号载人航天飞船的试验，杨利伟乘坐宇宙飞船遨游太空，不久，“神舟”六号将会将更多的宇航员带上太空，宇航员在太空舱中可以直接对话，但在飞船外作业时，他们之间不能直接对话，必须借助电子通信设备进行交流，其原因 ( ) A ．用通信设备对话是为了方便 B ．声音的传播需要介质 C ．太空中噪声太大 D ．声音只能在地面上传播8、如图2天坛公园的回音壁是我国建筑史上的一大奇迹，回音壁应用的声学原理是（ ）A ．声音的反射使原声增强B ．声音在不同介质中的传播速度不同C ．声音的音调不同D ．发声的物体在振动二、 填空题（每空1分，共24分） 9、如图3所示，用硬纸片把一个喇叭糊起来，做成一个“舞台”．台上小人在音乐声中翩翩起舞，这个现象说明______________________． 10、图4、图5是两种声音的波形，从图可知：图4是 的波形，理由是 ；图5是的波形，理由是。
人教版英语八年级上册单元测试卷U4(附答案)
单元检测卷（Unit 4）(总分100分，时间60分钟)Ⅰ.单项选择(每小题1分，共15分)1．—This computer is really cheap.—The______，the better.I need money，you know.A．cheapest B．cheapC．cheaper D．dear2．The boy ______ very well in that play.A．acted B．actionC．actor D．activity3．A car is ______ than a truck.A．much light B．much lighter C．more light D．more lightest 4．Which subject is ______，physics or chemistry?A．very interesting B．most interesting C．more interesting D．much interesting 5．He ______ the prize ______ the running this year.A．made；on B．got；about C．won；for D．won；on6．Which is ______ season in Beijing？A．better B．bestC．the best D．the better7．______ good at something，but some people are talented. A．Everybody B．Nobody is C．Everybody is D．Everybody are 8．—Is Yao Ming the best basketball player in China?—I think______.A．it B．soC．this D．that9．—Which is______，the sun，the moon or the earth?—Of course，the moon is.A．biggest B．the biggest C．smallest D．the smallest 10．Canada is the second ______country in area in the world. A．strong B．strongestC．large D．largest11．—It's ______colder than it ______yesterday.—That's right.You'd better put on more clothes.A．much；was B．more；was C．much；is D．more；is12．My math teacher is very ______ and she dances very ______. A．beautiful；beautiful B．beautiful；beautifully C．beautifully；beautiful D．beautifully；beautifully 13．Zhang Ming was catching up fast，too，but______.A．fast enough B．not enough fast C．not fast enough D．enough fast not 14．Who did best of ______？A．the three B．the twoC．two D．the twins15．—It's very kind of you to help me find the house.—______.A．That's right B．Oh，noC．No problem D．Good-byeⅡ.完形填空(每小题2分，共20分)Dear Nancy，You asked about places to go and things to do in our town.The Downtown Mall is always __16__.It's a __17__ place in the oldest part of town.There are some good stores and restaurants there.__18__，Trendy Clothing Store is in Downtown Mall.It's a fun place to shop，and it has the __19__ quality clothes.The shop assistants are friendly __20__ people.My favorite __21__ in town is Nick's Restaurant.It is close to my house.It's cheap and the hamburgers there are great.I like Dragon City Restaurant，__22__.You can eat wonderful noodles there and the beef noodles are the most delicious！You must try the dumplings there，too！But it's more expensive than Nick's.The Big Cinema is the best cinema in town.It has the biggest screens and the most __23__seats.The Del Ray Complex is also a good place to see movies.It doesn't have __24__movies，but the tickets are the cheapest.Anyway，there are lots of things to do and to see e for a __25__ soon!Love，Kate 16．A.funny B．funC．dull D．expensive17．A.fishing B．skatingC．reading D．shopping18．A.So that B．For exampleC．Such as D．In fact19．A.better B．bestC．worse D．worst20．A.with B．forC．to D．at21．A.school B．restaurantC．hospital D．park22．A.too B．alsoC．either D．neither23．A.dangerous B．comfortableC．important D．boring24．A.the newer B．newerC．newest D．the newest25．A.visit B．seeC．walk D．dinnerⅢ.阅读理解(每小题2分，共30分)AThe Chinese New Year is the most important holiday for the Chinese people.For the Chinese，the New Year comes with the first day of the First Moon，between January 21 and February 19.People get ready for the holiday for fifteen days.Finally，at midnight it is the first day of the First Moon.People close the shops and the streets are empty.Everyone locks the doors and stays at home.It is an important time for the family.The younger people bow(鞠躬) to the older people.The Chinese call this Ke Tou.This means “to touch the ground with the forehead”．Then the younger people wish the older people a happy New Year.The older people give children gifts of money inside envelopes.The family then go to sleep.In the morning，people dress in their best clothes.Some people stay at home，others go out to pay a New Year Call.They are very polite and do not use bad words.It's the most important day of the year.26．“The Chinese New Year” in the passage means “______”．A．Mid-autumn B．the Spring FestivalC．Christmas Day D．the Dragon(龙)Boat Festival27．It takes about ______ to get ready for the Chinese New Year.A．a few days B．twelve daysC．half a month D．three weeks28．At midnight you can see ______ people in the street.Everyone stays at home.A．lots of B．hundreds ofC．many D．few29．The part of the face above the eyes and below the hair is the ______.A．ear B．foreheadC．nose D．mouth30．On the Chinese New Year's Day.What do people usually say to each other when they meet?A．Good luck! B．Best wishes!C．Good morning. D．Happy New Year!BOne day，John read an advertisement in a newspaper.It said，“Wanted.The best salesman in the world.”John thought he was a great salesman and went to ask for the job.“I'm the best salesman in the world，” he said to the manager.“Give me the job.”“You must prove you are the best，”the manager said.“OK，I will，”John said.“Good.”The manager took several boxes of sweets out of his desk.“Last week I bought a thousand boxes of sweets.If you can sell them all before the end of the week，you can have the job，”said the manager.“That's easy，”John said.He took the boxes of sweets and left the office.Every day and every day he went from shop to shop，trying to sell the sweets.But he couldn't sell one.The sweets were too bad for him to sell.At the end of the week he went back to the manager.“I'm sorry，sir，”he said，“I was wrong about myself.I'm not the best salesman in the world，but I know who is.”“Oh，”said the manager.“Who？”“The person who sold you a thousand boxes of the sweets.”31.The manager told John______.A．he could start work at onceB．he was the best salesman in the worldC．he wasn't a good salesmanD．he must show he was the best salesman in the world32．John could get the job if______.A．he sold a thousand boxes of sweetsB．he gave away a thousand boxes of sweetsC．he sent the manager a thousand boxes of sweetsD．he bought a thousand boxes of sweets from the manager33．Choose the right order of the story ______.(1)John went to ask for the job.(2)John told the manager who the best salesman really was.(3)John read an advertisement in a newspaper.(4)John went to sell the sweets.A．(1)(3)(2)(4) B．(3)(1)(4)(2)C．(3)(1)(2)(4) D．(4)(1)(2)(3)34．From this story we can know that______.A．John didn't get the jobB．John was a good sellerC．the manager was a good sellerD．the advertisement was a good one35．John couldn't sell the sweets because______.A．he was not a good salesmanB．the sweets were too badC．he wanted to send them to his friendsD．nobody liked sweetsCWe Want the Best!We did a survey of things that interest young people today.This is what they told us.Most of the cafes in town are good，but The Turk's Delight，the newest cafe to open here，is the most popular.It is also the most expensive，but the coffee is the best and the chairs are the most comfortable.What's more，the music they play in the cafe is the best.The cell phone that everyone wants to buy is the V-Phone.This is the coolest phone around because it is like a computer.It has the most extras.You can take photos，make videos，check your e-mail，and of course，makephone calls.And what video game is the best today？Well everyone agrees it is Viper Boy.It has the best graphics(图画)，Ⅳ.41．Some people are talented and c______.42．Let's go out to breathe f______ air.43．My cousin g______ me this picture book yesterday.44．In the old days，people lived a p______ life.45．He goes to the t______ to enjoy Beijing Opera once a week.Ⅴ.用所给词的正确形式填空(每小题1分，共5分)46．It's fun ______(watch) people show their talents.47．When people watch the show，they usually play a role in ______(decide) the winner.48．The talent shows can give people a way ______(make) dreams come true.49．Not all people enjoy those______(song)．50．You can sit ______(comfortable) here and relax.. 51.______Boy：I guess Jammin 107 FM is the best.Reporter：Why?Boy：52.______It's much better than the other stations in town.Reporter：What about Oldies 102.1 FM?Boy：Well，I think Oldies 102.1 FM is very bad.53.______Reporter：I heard that.54.______Boy：Not for me.Reporter：Why not?Boy：55.______They're worse than the commercials of All Talk 970 AM!Ⅶ.书面表达(共20分)上周，我们进行了一次“我市的一些好场所”的问卷调查，请你根据下面表格所提供的信息写一份调查报告。
八年级上册单元测试卷【含答案】
八年级上册单元测试卷【含答案】专业课原理概述部分一、选择题（每题1分，共5分）1. 下列哪种现象属于光的反射？A. 彩虹B. 镜子中的倒影C. 日食D. 月食2. 在电路中，电阻的单位是？A. 安培B. 伏特C. 欧姆D. 瓦特3. 下列哪种动物属于哺乳动物？A. 青蛙B. 蜗牛C. 老虎D. 鲨鱼4. 地球上最大的生物圈是？A. 森林生态系统B. 海洋生态系统C. 草原生态系统D. 农田生态系统5. 下列哪种能源属于可再生能源？A. 煤炭B. 石油C. 太阳能D. 天然气二、判断题（每题1分，共5分）1. 地球是太阳系中唯一有生命的行星。
（）2. 光速在真空中是最快的。
（）3. 人类的DNA与香蕉的DNA有60%的相似度。
（）4. 长江是中国最长的河流。
（）5. 菠菜中铁的含量比牛肉高。
（）三、填空题（每题1分，共5分）1. 光的传播速度在真空中是______。
2. 地球上最大的生物圈是______。
3. 人体中最重要的骨骼是______。
4. 碳水化合物的主要功能是为人体提供______。
5. 电流的单位是______。
四、简答题（每题2分，共10分）1. 简述光合作用的基本过程。
2. 解释牛顿第一定律。
3. 描述食物链的基本概念。
4. 简述水的循环过程。
5. 解释为什么地球有四季变化。
五、应用题（每题2分，共10分）1. 一个电阻为10欧姆的电阻器，通过它的电流是0.5安培，求电压。
2. 一个正方形的边长是4厘米，求它的面积。
3. 一个化学反应的化学方程式为2H2 + O2 = 2H2O，求反应物和物的摩尔比。
4. 一个物体的质量是2千克，加速度是3米/秒²，求作用在物体上的力。
5. 一个等腰三角形的底边长是6厘米，高是4厘米，求它的面积。
六、分析题（每题5分，共10分）1. 分析为什么太阳能是一种清洁能源。
2. 分析为什么森林对于地球的生态平衡非常重要。
七、实践操作题（每题5分，共10分）1. 设计一个实验，验证光的反射定律。
(外研社版)初中英语八年级上册 Module 3单元测试试卷02及答案
Module 3 Sports. 单元测试一、听力理解。
（本大题分A 、B 、C 、D 四部分，共30小题，每小题1分，共30分）A.听单句话。
（本题有5小题，每小题1分，共5分）根据所听句子的内容和所提问题，选择符合题意的图画回答问题，并将其字母编号填写在题前括号内。
每小题听一遍。
（）1. What does Tony often do with his friend on Sunday afternoons?A. B. C.（ ）2. How did the speaker’s uncle watch a basketball match last night?A. B. C.（ ）3. Where is Mr. White from?A. B. C.（ ）4. What is the speaker’s favorite sport?A. B. C.（ ）5. When does the football match start in the afternoon?A. B. C.B.听对话。
（本题有10小题，每小题1分，共10分）根据所听对话的内容回答每段对话后面的问题，在各题所给的三个选项中选出一个最佳答案，并将字母编号填写在题前括号内。
每段对话听两遍。
听第一段对话，回答第6小题。
（）6. Who taught Tony to play tennis?A. His father.B. His aunt.C. His uncle.听第二段对话，回答第7小题。
（）7. How does Linda like swimming?A. Dangerous.B. Difficult.C. Relaxing.听第三段对话，回答第8小题。
（）8. What is Sam going to do this afternoon?A. Play basketball.B. Play football.C. Play volleyball.听第四段对话，回答第9小题。
名校课堂八年级上册英语单元卷
名校课堂八年级上册英语单元卷一、Unit 1 Where did you go on vacation?1. 重点单词。
- anyone（任何人），anywhere（任何地方），wonderful（精彩的；绝妙的），few（不多；很少），quite a few（相当多；不少），most（大多数；大部分；几乎全部），something（某事；某物），nothing（没有什么；没有一件东西），everyone（每人；人人；所有人），of course（当然；自然），myself（我自己；我本人），yourself（你自己；您自己），hen（母鸡），pig（猪），seem（好像；似乎；看来），bored（厌倦的；烦闷的），someone（某人）。
2. 重点短语。
- go on vacation（去度假），stay at home（待在家里），go to the mountains（去爬山），go to the beach（去海滩），visit museums（参观博物馆），go to summer camp（去参加夏令营），quite a few（相当多），study for （为……而学习），go out（出去），most of the time（大部分时间），taste good（尝起来很好吃），have a good time（玩得高兴；过得愉快），of course（当然），feel like（给……的感觉；感受到），go shopping（去购物）。
3. 重点句型。
- - Where did you go on vacation? - I went to New York City.- - Did you go out with anyone? - No. No one was here. Everyone was on vacation.- - Did you buy anything special? - Yes, I bought something for my father.- - How was the food? - Everything tasted really good.- - Did everyone have a good time? - Oh, yes. Everything was excellent.4. 语法。
人教版八年级上册英语Unit1 单元测试卷(含答案)精选全文
精选全文完整版（可编辑修改）八年级上册英语Unit1测试卷一、单项选择(每小题1分，满分10分)( )1.- You didn't go to Shanghai last summer holidays, did you?- .A. Yes, I didn't B, No, you didn't C. No, you did D. No, I didn't( )2.(长春中考)I bought for my mother on Mother's Day this year.A.special anythingB. anything specialC. special somethingD. something special( )3.(广州中考) Hurry up，kids! The school bus is coming. We have time left.A.fewB. a fewC. littleD. a little( )4. Oh, I forgot my ruler with me. Can I use yours?A.bringB. broughtC. to bringD. bringing( )5.Helen is new here,so we know about her.A.nothingB. somethingC. anythingD. everything( )6.- Li Lei, National Day is coming. Where will you go?-I decide to Mount Tai.A.goB. will goC.to goD. going( )7. The cookies good. Can I have some more?A.tasteB.smellsC. feelD.sound ( )8. This watch is ,but I don't have .A. enough beautiful; money enoughB.beautifully enough; money enoughC. beautiful enough; enough moneyD. enough beautiful; enough money ( )9.- Why are you late for school today?-I’m sorry I didn’t catch the early bus and I had to the next one.A. wait forB. ask forC.care for( )10.-Where did you go last weekend?-I to the Great Wall.A.goB. wentC. will goD. have gone二、完形填空(每小题2分，满分20分)The summer vacation is the best time for students. They can go outdoors and have fun. They can go to big cities to 11 ,or go to the countryside to enjoy the beauty of 12 .Peter is an American middle school student and he loves 13 very much. He always travels in his country.This summer vacation he wants to do 14 . He is interested in Chinese history, 15he is flying to Beijing and Xi'an for the summer vacation. He is leaving on July 12th and 16 New York on the last day of the month. He plans 17 a fantastic vacation. During the 18 ,he is visiting places of interest and going shopping. At night, he is 19 to enjoy the night views. He is sure he will have a 20 time( )11. A. watch TV B. exercise C. go sightseeing D. go fishing( )12. A. buildings B.city C. farm D. nature( )13. A. travelling B. shopping C. fishing D. hiking( )14. A. something difference B. different somethingC. something differentD. difference something( )15. A. because B.so C. but D.although( )16. A. getting back to B.get backC. getting hackD. gets back to( )17. A. having B. to have C. to having D. had( )18. A. weekend B. week C.night D. day( )19. A. take a walk B. taking walks C. takes a walk D. take walks( )20. A. great B. well C.terrible D. boring三、阅读理解(每小题2分，分20分)AWhat do we do when we go camping? First, we make n plan. We take food, clothing, a knife, and things for cooking and eating. We take things to keep us away from insects and the sun.Then we put everything into the car and we drive to the woods. We look for a place for campers (露营者) and we look for a good place for our tent(帐篷). The place should have a lot of moving air.This will keep some insects away. High land with water on both sides of it is good. Then we put up our tent. We put everything into the tent,and we are ready for fun. We can swim in the lake, walk in the woods, climb a mountain, row a boat, or go fishing.In the evening we come back to the tent, and we build a big fire because it can keep the insects away. We sit around the fire and talk. We may tell interesting stories or we may sing songs.At night we lie down on the grass. We can look up at the stars. It is a busy day, so we try to go to sleep early.Everything is dark. Everything is quiet. We hope we won’t hear music from the radio in the next tent. We hope it won’t rain.( )21. Before going camping we should first .A. make a planB. take some foodC.take things to keep us warmD. lake something for cooking and eating ( )22. We go to camp .A.by busB. by carC. by bikeD. on foot( )23. Campers can take part in activities.A. one or twoB. only a fewC.manyD. two or three( )24. In the evening we build a fire because .A. it is cold at nightB. it can keep us warmC. it can keep the insects awayD. it is dark and quiet( )25. Campers like to at night.A. hear music from the radioB. go to sleep earlyC. have rainD. be busyBThe westerners have more vacation days than us.Some people like to stay at home during their vacation. They work in the garden, visit their friends read books or watch television. Many families take their lunch to a park or somewhere far from the city. They like to eat under some trees or near a nice lake. If they live near the sea. They often go to the seaside. There they can fish, swim or enjoy the sun.The westerners like travelling. They think travelling and outdoor activities are the parts of their lives. They work hard to save money, but their main purpose(目的) is to travel.Most western students often make use of their vacation to camp. There are thousands of camp bases(基地)in western countries. They can swim, go fishing, attend lectures, and take part in many other recreational (娱乐性的) activities there. It can help them wrest from the secrets of nature，train(训练) their viability(生存能力)，and teach them how to be self-reliant(自立).( )26. Some westerners like to at home during their vacation.A. clean their roomsB. cook their mealsC. work in the garden and watch TVD. go fishing( )27. Many families often take their lunch out and have it .A. under some treesB. near the cityC. near the houseD. in the restaurants(餐馆)( )28. is very important for the westerners.A. Working hardB. TravellingC. Saving moneyD.Going camping ( )29. What does the underlined phrase "wrest from"mean here?A.取得B.保守C.认识D.探索( ) 30.The passage mainly tells us .A.how the westerners spend their vacationB. the westerners have more vacation days than usC. different views on vacation between the westerners and the easternersD. how to be self-reliant四、词语运用(每小题1分，满分10分)根据语篇内容，用方框中所给词的正确形式填空，使短文通顺、连质。
2024-2025学年八年级语文上册第二单元测试卷(含解析)
2024-2025学年八年级语文上册单元测试卷第二单元注意事项：1．考试时间：120分钟，试卷满分：120分。
答卷前，考生务必将自己的姓名、考生号等填写在答题卡和试卷指定位置上。
2．回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。
如需改用橡皮擦千净后，再选涂其他答案标号。
回答非选择题时，将答案写在答题卡上。
写在本试卷上无效。
3．考试结束后，将本试卷和答题卡一并交回。
一、积累与运用（共25分）1．（6分）请阅读下面的文字，完成各题。
他生就一副多毛的脸庞，植被多于空地，浓密的胡髭使人难以看清他的内心世界。
长髯覆盖了两颊，遮住了嘴唇，遮住了皱似树皮的yǒu黑脸膛，一根根迎风飘动，颇有长者风度。
宽约一指的眉毛像纠缠不清的树根，朝上倒竖。
一绺绺灰白的鬈发像泡沫一样堆在额头上。
不管从哪个角度看，你都能见到热带森林般茂蜜的须发。
像米开朗琪罗画的摩西一样，托尔斯泰给人留下的难忘形象，来源于他那犹如卷起的滔滔白浪的大胡子。
（1）给加点字注音，根据拼音写出相应的汉字。
脸庞（________）胡髭（________）yǒu（________）黑（2）文中有错别字的一个词语是“________”，这个词语的正确写法是“________”。
（3）本段刻画人物的主要描写手法是________________。
2．（2分）下列各句中，加点成语使用有误的一项是（）A．列夫·托尔斯泰这对眼睛不会放过微不足道的细节，同样也能全面揭示广无垠的宇宙。
B．鲁迅的许多作品都会把关注的重点放在一些小巧玲珑的生活细节上。
C．他们两人的爱好、处事方法迥然不同，谁也没法了解谁，谁也没法改变谁。
D．传说中开天辟地的盘古，只是众神之一，影响不大，从未享受过顶礼膜拜的待遇。
3．（2分）下面句子没有语病的一项是（）A．为了防止这类事故不再发生，我们必须采取有效措施。
B．高考失败，小镜伤心极了，他多么希望知心朋友和他分享这无限的苦恼啊！C．自从来到这个世界上，人类就一直面临着两种挑战，一是来自人类本身，一是来自大自然。
八年级上册语文第一单元试卷
八年级上册语文第一单元试卷一、基础知识（30分）（一）选择题（每题3分，共15分）1. 下列加点字的注音完全正确的一项是（）A. 溃（kuì）退要塞（sài）仲（zhòng）裁锐不可当（dāng）B. 颁（bān）发翘（qiào）首悄（qiāo）然殚（dān）精竭虑。
C. 娴（xián）熟诘（jí）责绯（fěi）红深恶（wù）痛疾。
D. 滞（zhì）留不逊（xùn）禁锢（gù）颔（hán）首低眉。
答案：A。
解析：B项中“翘首”的“翘”应读“qiáo”，“悄然”的“悄”应读“qiǎo”；C项中“诘责”的“诘”应读“jié”，“绯红”的“绯”应读“fēi”；D项中“颔首低眉”的“颔”应读“hàn”。
这题就像在一群调皮的孩子里找出听话的那个，要对拼音规则很熟悉才行哦。
2. 下列词语中没有错别字的一项是（）A. 由衷桅杆眼花潦乱一丝不苟。
B. 紧绷咆哮殚精竭虑白手起家。
C. 镌刻遗嘱震耳欲聋催枯拉朽。
D. 浩瀚吞食风平浪净如梦初醒。
答案：B。
解析：A项“眼花潦乱”应为“眼花缭乱”；C项“催枯拉朽”应为“摧枯拉朽”；D项“风平浪净”应为“风平浪静”。
这些错别字就像隐藏在文字里的小怪兽，一不小心就会被它们迷惑啦。
3. 下列句子中加点成语使用恰当的一项是（）A. 他在大会上的即兴讲话逻辑严密、语无伦次，博得了与会专家的一致好评。
B. 正因为他具有海誓山盟的崇高理想，才在工作中取得了出色的成绩。
C. 它们发现自己陷入了峰回路转的绝境，一片惊慌，胡乱蹦跳。
D. 学生的学习水平是参差不齐的，因此教师的教学要尽可能做到因材施教。
答案：D。
解析：A项“语无伦次”表示说话没有条理，与“逻辑严密”和“博得了与会专家的一致好评”矛盾；B项“海誓山盟”一般用于男女之间表达爱情的誓言，不能形容理想；C项“峰回路转”是形容事情出现新的转机，不是绝境的意思。
部编版初中八年级语文上册第一单元测试卷含参考答案
部编版初中八年级语文上册第一单元测试卷含参考答案一、积累与运用（20分）1.下列加横线字注音、字形全对的是（）（2分）A.提防（tí）脂粉（zhǐ）惊骇（hài）B.绥靖（sūi）溃退（kùi）丰功伟绩（jī）C.诘问（jié）星宿（xiù）惟妙惟肖（xiào）D.环绕（rǎo）瞥见（piē）锐不可挡（dāng）2．下列词语中无错别字的一项是（）（3分）A．治裁/晨曦/血腥/闪烁B．臭名昭著/荒谬/憧憬/珐琅C．响彻云宵/杀戮/箱箧/揣摩D．孤苦伶仃/纳粹/鞠恭/铁锈3.下列加线词语使用妥当的一项是（）（3分）A.老头子张皇失措，船却走不动，鬼子紧紧追上了他。
B.从小培养孩子们良好的生活习惯，不是举足轻重的小事，绝不能掉以轻心C.大家认为他提出的这条建议很有价值，都随声附和表示赞成。
D.人民解放军英勇善战，所以西路当面之敌锐不可当，纷纷溃退。
4．下列有关文字常识的表述，有误的一项是（）（2分）A．《芦花荡》的作者是我国当代作家赵树理写的小说，他是荷花淀派的代表人物。
B．消息一般有时间、地点、人物、事件的起因、经过、结果六个要素，包括标题、导语、背景、主体和结语五部分结构。
C．《蜡烛》的作者是前苏联作家西蒙诺夫。
D、小说的三要素是人物，情节，环境，其中人物是最主要的要素。
5.下列句子没有语病的一项是（）（2分）A.为满足广大游客的需要，华夏旅行社设计并开通了20余条旅游精品线路B.绿树葱茏，树上的鸟儿大约有一百多只。
C.能否贯彻落实科学发展观，是构建和谐社会、促进经济可持续发展的重要保证。
D.赵大爷种植的大樱桃刚采摘完毕，就基本上全部被抢劫一空。
6.常识及诗词默写填空（5）（1）法国作家雨果的代表作有《》、《》。
（2）《芦花荡》的作者是，本文属于（体裁）。
（3），万物生光辉。
（4）古今描写战争的诗词。
①②7.为下面这则新闻拟一个恰当的标题。
八年级数学单元测试卷【含答案】
八年级数学单元测试卷【含答案】专业课原理概述部分一、选择题（每题1分，共5分）1. 若 a > 0，b < 0，则 a + b 的符号是（）A. 正数B. 负数C. 零D. 无法确定2. 下列哪个数是有理数？（）A. √2B. √3C. πD. 1/23. 若一个三角形的两边长分别为3和4，那么第三边的长度可能是（）A. 1B. 5C. 6D. 74. 若 a = 3，b = -2，则a² +b² 的值是（）A. 13B. 5C. 10D. 85. 下列哪个图形是平行四边形？（）A. 矩形B. 梯形C. 正方形D. 等边三角形二、判断题（每题1分，共5分）1. 任何两个奇数之和都是偶数。
（）2. 直角三角形的两个锐角互余。
（）3. 若 a = b，则a² = b²。
（）4. 任何两个负数相乘都是正数。
（）5. 若一个数是偶数，则它的平方也是偶数。
（）三、填空题（每题1分，共5分）1. 若 a = 2，b = 3，则a² + b² = _______。
2. 一个正方形的边长为4，则它的面积为 _______。
3. 若一个等腰三角形的底边长为5，腰长为8，则它的周长为 _______。
4. 2的平方根是 _______。
5. 若 a = 3，b = -2，则a² b² = _______。
四、简答题（每题2分，共10分）1. 请简要解释勾股定理。
2. 请解释等差数列的定义。
3. 请解释二次方程的定义。
4. 请解释因式分解的定义。
5. 请解释相似三角形的定义。
五、应用题（每题2分，共10分）1. 一个长方形的长是10，宽是5，求它的面积。
2. 若一个等腰三角形的底边长为8，腰长为10，求它的周长。
3. 解方程x² 5x + 6 = 0。
4. 计算3² + 4²。
5. 若 a = 2，b = 3，求a² b²。
人教版英语八年级上册单元测试卷U3(附答案)
单元检测卷(Unit 3)(时间：60分钟分值：100分)Ⅰ. 单项选择(每小题2分，共20分)1. I think computers are very useful. They can help us get much ________ on the Internet.A. gameB. informationC. ideaD. message2. (2015·天津)Meimei thinks math is ________ than Chinese.A. easyB. easierC. the easiestD. very easy3. (2015·镇江)—Which of the two subjects do you like, PE or music?—________. They are really interesting.A. NeitherB. BothC. NoneD. All4. (2015·益阳)—It's Father's Day today, ________？—Yes, let's buy a gift for Dad.A. isn't heB. doesn't itC. isn't it5. ________ he is very old, ________ he still works hard.A. Though; butB. But; thoughC. Though; /D. /; though6. In fact, listening is just as ________ as speaking in language learning.A. importantB. more importantC. more difficultD. more interesting7. The boy is good at ________ jokes and he often makes us ________.A. telling; laughB. telling; to laughC. tell; laughD. tell; to laugh8. The weak boy is getting ________ day by day. Everyone is happy to see this.A. well and wellB. well and betterC. better and betterD. better and well9. The little girl is very ________ and she always speaks ________ in public.A. quiet; quietB. quiet; quietlyC. quietly; quietlyD. quietly; quiet10. This book isn't the same ________ that book. They're different ________ each other.A. from; atB. as; withC. with; asD. as; fromⅡ. 完形填空(每小题2分，共20分)I think friends are very important in people's lives. Do you think so? Some friends have __1__ views and interests, and __2__ like the same things. Should friends be different __3__ the same? I don't care. I have two best friends, Wang Mei and Lin Lei. Wang Mei __4__ like me. I am __5__ than most of the students in my class, and Wang Mei is also quiet. And we both enjoy __6__. On weekends, we often go to the library to do some reading. But the other best friend of mine, Lin Lei, is __7__ different from me. She is much more outgoing, and she likes __8__ and often makes me laugh. She also likes __9__，so she is more athletic. I don't think differences are important in a __10__. What's your opinion?1. A. same B. opposite C. active D. free2. A. some B. another C. other D. the other3. A. and B. but C. or D. then4. A. isn't B. doesn't C. does D. is5. A. quiet B. quieter C. outgoing D. more outgoing6. A. reading books B. playing gamesC. watching TVD. going to the movies7. A. not B. more C. quite D. lots of8. A. doing sports B. telling jokesC. going to partiesD. going shopping9. A. sports B. books C. movies D. subjects10. A. match B. concert C. family D. friendshipⅢ. 阅读理解(每小题2分，共20分)ARose has four cousins. They are Ann, Betty, Peter and Bill. Rose is the oldest of them five. Betty is thirteen years old. She is two years younger than Rose and one year older than Peter. Bill is nine, and Ann, the youngest, is seven.Betty and Peter are good at running. But Peter runs faster. Rose and Ann like to play basketball. Rose plays better than Ann. Bill is the best singer of them five. Rose and Betty study in a middle school. Ann, Peter and Bill study in a primary school. These five children all work hard at their lessons. But Betty works hardest.1. Rose is ________ years older than Peter.A. twoB. threeC. sixD. eight2. Peter is ________ years old.A. nineB. twelveC. thirteenD. fifteen3. Who runs fastest of them five?A. Peter.B. Betty.C. Peter and Betty.D. All of them.4. Who is the best singer?A. Ann.B. Rose.C. Bill.D. Peter.5. Who are middle school students?A. All of them.B. None of them.C. Rose and Betty.D. Bill，Peter and Ann.BI have a twin brother, Bob. He is taller than me. His hair is longer than mine. Many people think we must have many things in common. But in fact this is not true. Bob is more outgoing than me. When my parents' friends come to our house, Bob often sits there and talks to them. But I often sit there and say nothing. Bob likes reading, cooking and drawing. I just like swimming and playing basketball. He has more hobbies than me, but he is not as athletic a s me. Because Bob does better than me at school, my mom often says to me, “Bob is younger than you, but he can get better grades. You should learn from him.” We both like eating fast food and listening to music.6. Bob is ________ than me.A. tallerB. thinnerC. shorterD. heavier7. Bob and I have ________ in common.A. many thingsB. nothingC. lots of thingsD. a few things8. Bob talks ________ me.A. as much asB. more thanC. less thanD. as little as9. I am ________ Bob.A. more athletic thanB. as weak asC. as athletic asD. as good at schoolwork as10. We both like ________.A. readingB. cookingC. swimmingD. musicⅣ. 用所给词的适当形式填空(每小题1分，共5分)1. Sue comes ________(quiet) than Ann.2. My brother is as ________(hard-working) as my cousin.3. My best friend Jimmy enjoys ________(listen) to music.4.—How are you feeling now, Peter?—Much ________(well)．5. It's necessary for them ________(learn) English well.Ⅴ. 完成句子(每小题2分，共10分)1.很多人都认为这个女孩在艺术方面有天赋。
人教版八年级上册英语单元测试题全套(含答案)
人教版八年级上册英语单元测试题全套（含答案）人教版八年级上册英语单元测试题全套（含答案）（含期中期末试题，共12套）Unit 1测试题及答案二、单项选择(每小题1分，共15分)从每小题所给的四个选项中选出最佳选项。
( B )31.—Cindy，what's that under the desk?—Oh，it's ________ umbrella. ________umbrella is mine.A．an；An B．an；TheC．a；The D．a；A( C )32.—David，who did you go on a trip to Sanya with?—Nobody (没有人)．I went there ________.A．me B．youC．myself D．yourself( A )33.—I ________ what they said just now.Can you tell me?—Sorry，I didn't go to the meeting.A．wonder B．enjoyC．remember D．decide( D )34.—It ________ that Mike is very happy today.—Yes.He got a new model plane from his uncle this morning.A．feels B．sounds C．tastes D．seems( A)35.Tom thinks his school life is interesting，because there are always lots of________ after class.A．activities B．messagesC．dangers D．problems( D )36.—Linda，don't forget to bring your raincoat，or you'll get ________.—OK，Dad.A．dry B．warm C．cold D．wet( A )37.—What did you buy for your best friend when you were on vacation?—Well，I bought ________ for her.A．something special B．anything specialC．special something D．special anything( D)38.—What can you see from the top of the mountain?—We can see a lake ________ us.A．past B．across C．along D．below( B )39.—What do you think of A v engers：Infinity War?—It's ________ for me.I got ________ when I was in the cinema (电影院)．A．boring；boring B．boring；boredC．bored；boring D．bored；bored( A)40.—Why does little Tom's father not let him use the computer?—Because his father thinks Tom is not ________.A．old enough B．enough oldC．young enough D．enough young( B)41.—Does Sally have many friends in her class?—No，she has ________ because she is shy and quiet.A．a few B．few C．a little D．less( B )42.—You seem ________ G．E.M.'s songs very much.—That's true.She is my favorite singer.A．to practice B．to enjoyC．practicing D．enjoying( B)43.—Alex, ____________ helped you clean the classroom yesterday?—Yes，Mike did.A．someone B．anyoneC．everyone D．no one( C )44.We didn't go to the park last Sunday ________the bad weather.A．so that B．soC．because of D．because( C )45.—Did you go anywhere interesting this summer vacation?—________.I only stayed at home to study for the test.A．Of course B．No problemC．Not really D．Sounds great三、完形填空(每小题1分，共10分)阅读下面短文，从各题所给的选项中选出最佳答案。
【人教版物理】八年级上册单元测试卷含答案(共6套)
【人教版物理】八年级上册单元测试卷含答案(共6套)一、选择题1. 下列关于物理量的单位，正确的是（）A. 长度的单位是千克B. 时间的单位是米C. 质量的单位是秒D. 速度的单位是米/秒答案：D2. 下列关于物理现象的描述，正确的是（）A. 水加热时，温度升高，分子运动速度变慢B. 水结冰时，体积缩小，密度变大C. 光在真空中传播速度最快，为3×10^8米/秒D. 声音在空气中传播速度为340米/秒，与温度无关答案：C3. 下列关于力的描述，正确的是（）A. 力是物体运动的原因B. 力是物体形状改变的原因C. 力是物体相互作用的结果D. 力是物体运动状态的改变的原因答案：D4. 下列关于功和能的描述，正确的是（）A. 功是能量转化的量度B. 能是物体做功的本领C. 功和能的单位都是焦耳答案：D5. 下列关于简单机械的描述，正确的是（）A. 杠杆是一种简单机械，可以改变力的方向B. 滑轮是一种简单机械，可以改变力的大小C. 斜面是一种简单机械，可以省力但费距离D. 轮轴是一种简单机械，可以改变力的方向和大小答案：C二、填空题6. 物体运动的速度可以用__________来表示，单位是__________。
答案：距离/时间，米/秒7. 物体受到的力可以用__________来表示，单位是__________。
答案：牛顿，N8. 物体具有的能可以用__________来表示，单位是__________。
答案：焦耳，J9. 简单机械包括__________、__________、__________等。
答案：杠杆、滑轮、斜面10. 物体运动的状态可以用__________来表示，单位是__________。
答案：速度，米/秒三、计算题11. 一个物体以10米/秒的速度运动，求它在5秒内通过的距离。
答案：50米12. 一个物体受到20牛顿的力，求它产生的加速度。
答案：2米/秒^213. 一个物体具有100焦耳的能，求它所做的功。
人教版八年级英语上册 Unit 6 单元测试卷(含答案)
人教版八年级英语上册 Unit 6 单元测试卷（含答案）一、单项选择1．—_______________ ?— He’s a farmer.A．What’s your father doing B．What does your father doC．Where is your father D．What’s your father going to be2．—How is your sister going to be a writer ? — She’s going to keep on ________ stories. A．writing B．write C．writes D．wrote3．—_______ are you going to study drawing ? —I’m going to an art school.A．When B．why C．Where D．What4．He is going to write articles and ________ them to the newspapers.A．help B．make C．bring D．send5．Jack wants to watch ______ because they can help him to learn what is happening in the world. A．game shows B．talent showsC．sports shows D．the news.6．Here is a new book for you, son. I'm sure you ________ it interesting.A．found B．are findingC．will find D．have founded7．Next year, I’m going to ________ a new hobby.A．get up B．make up C．take up D．cut up8．She is _________ poor _________ buy the expensive suit.A．so; that B．enough; to C．too; to D．to; too9．（易错题）This is an important phone number. Please _________.A．write down them B．write it downC．write them down D．write down it10．I want to be a professional basketball player，______ I practice basketball every day．A．because B．so C．or D．but11．He promised ________ his old friend during his stay in Tianjin.A．See B．Seeing C．saw D．to see12．Lucy's phone number is 563-2648. Please ____________ on a piece of paper.A．write down them B．write them downC．write it down D．write down it13．--Dad, how can I get on well with my classmates?--Try to be friendly to them.That will make it much____.A．easily B．more easily C．easy D．easier 14．The little girl was unable ________ her name.A．to write B．to writing C．write D．writing15．How time flies! We should show love for our parents and make them ________ how much they mean to us.A．to know B．knowing C．knew D．know二、完形填空My grandpa's 88th birthday is coming. We are going to have a great birthday party for__16__. All of my family members are going to the party. The party is in Bridge Town. Grandpa was born and__17__there. He always wants to go back to have a look. Now we help him make his__18__. come true. Grandpa must be very__19__.Uncle Bob is a great__20__in a restaurant. He is going to do all the dishes at the party. I'm sure he will give us a great__21__. Each of the family members will__22__Grandpa a gift.__23__the youngest grandson, I have a gift for Grandpa too. I'm making a model plane. Grandpa was a__24__. He spent all his youth flying planes. He must love the gift. Oh, I tell you too much. You must___25___you won't tell Grandpa. They are secrets.16．A．her B．him C．you D．them 17．A．made up B．put up C．took up D．grew up 18．A．problem B．team C．dream D．plan19．A．rich B．excited C．serious D．simple 20．A．cook B．pianist C．artist D．actor 21．A．program B．show C．movie D．meal 22．A．paint B．improve C．send D．discuss 23．A．As B．With C．For D．To24．A．teacher B．pilot C．scientist D．doctor 25．A．wonder B．mind C．expect D．promise三、阅读单选Expert(专家) say that students usually need eight to ten hours’ sleep at night, but most Chinese students do not get enough sleep. Some Chinese parents are usually glad to see their children studying late. They will think their children work very hard, but not all parents are happy about this. Once a mother told us that every morning her 10-year-old boy put up one finger (手指)with his eyes still closed, begging(请求) for one more minute to sleep. like thousands of students “ early birds” in China, he has to get up before six every morning.A report shows that without a good night’s sleep, students seem to be weaker (虚弱)than they should be. Many students have fallen asleep during class at one time or another. Too much homework is not the only reason why students stay up late. Some watch TV or play the computer games late into the night.Experts have ever said that the students should develop good study habits. So some clever students never study last, they are able to work well in class.26．The 10-year-old boy begged for more minute to sleep because__________A．he didn’t have enough sleep B．it wasn’t time for him to get upC．he didn’t want to go to school D．he wanted his mother to wake him up 27．In this passage we know if students don’t get enough sleep, they may________ A．become too weak to sleep B．not work well in classC．go to bed early D．be weak in English28．In this passage “early birds” means “persons who ______________”A．get up early B．get up lateC．sleep less D．don’t want to sleep29．“stay up late” here means “_____________”A．study late B．watch TV lateC．not go to bed until late D．stay outside30．According to the passage, which of the following is right?_________A．If you want to study better, you must work hard at night.B．Sleeping less means working hard.C．Some clever students are able to work well in class because they have good study habits. D．Students don’t have enough sleep because they have lots of homework to do.Good study habits are important for all students. When you have good study habits, you will learn faster and find you have a good memory (记忆).Do you usually study in the living room? This is not a good place for study because it is usually too noisy. You need to study in a quiet place, such as your bedroom. A quiet place will help you learn better.Before you begin to study, do not forget to clean your desk. It helps you study well, too. Light（光线）is important, too You will feel tired easily if there is not enough light.Of all the good study habits developing asking questions is the key. Just ask. No one knows everything .but we can always learn from each other by asking questions.One simple but important habit is to tell yourself what you are studying for. Put your dream grades（理想的分数）on the wall next to your bed or computer. It means （意味着）you will see and think about it every day.When do you work best? Are you an early bird or a night owl（猫头鹰）, or something in between? Find your most productive work time and then plan to study at this time.31．Why is the living room not a good place for study?A．Because it is too quiet.B．Because it is too small.C．Because it is too noisy. 32．According to the passage. What should you do before you study?A．Clean the desk.B．Put your story books away.C．Turn on the 1ight. 33．Why should we put your dream grade on the wall?A．To make us happy.B．To develop a good study habit.C．To remind(提醒) us what we are studying for.34．What is the Chinese meaning Of the underline word “productive”?A．有效的B．有趣的C．精彩的35．What is the best title for important?A．Study in the bedroom B．Good habits are very important C．How to study.四、短文综合填空My Friend’s Plans for the FutureI’m an outgoing girl and I like making friends. And I have two pen pals from _____36_____ (外国的) countries.Alice, a 20-year-old girl, lives in _____37_____ (伦敦), UK. Both of her parents would like her to be a d_____38_____ when she grows up. However, Alice thinks it’s boring to work in the hospital. She wants to he a professional w_____39_____ after she finishes _____40_____ (大学). She is good at writing and still k_____41_____ on writing even though she has to spend time on her schoolwork now. She writes articles and sends them to magazines and newspapers. She expects to be another Mo Yan. Though she doesn’t make s_____42_____ if her dream can come true, she has to try her b_____43_____.Bob is from Pennsylvania, USA, a state which becomes _____44_____ (著名的) because of Kobe, a wonderful NBA star. Kobe is his idol. That’s why he hopes to become a basketball player. Bob is going to eat healthier food so that he can be taller and stronger. Bob also plans to go to basketball camp to ______45______ (提高) his skill where he is able to practice basketball every day. He believes his dream can come true as long as he works hard.五、用所给单词的正确形式填空46．We go and do the ________(week) shopping every Thursday.47．Though it’s difficult to be a _______ (science), I’d like to have a try.48．Lin Wei made a wish at the _______ (begin) of 2021.49．Don’t ask about my _______ (person) problems, please.50．His uncle likes playing the piano and he wants to be a _______ (piano).六、材料作文51．人人都有梦想，假设你是埃米，请以“My Dream Job”为题写一篇短文，畅想一下你的未来。
八年级数学全部单元试卷
一、选择题（每题4分，共40分）1. 若a、b是方程x²-5x+6=0的两根，则a+b的值为（）A. 2B. 3C. 4D. 52. 在直角坐标系中，点A（-1，2）关于原点对称的点的坐标是（）A.（1，-2）B.（-1，-2）C.（-1，2）D.（1，2）3. 若m²+2m+1=0，则m的值为（）A. 1B. -1C. 0D. ±14. 在△ABC中，∠A=45°，∠B=60°，则∠C的度数是（）A. 45°B. 60°C. 75°D. 90°5. 若x²-2x+1=0，则x的值为（）A. 1B. -1C. 0D. ±16. 下列函数中，是反比例函数的是（）A. y=x²B. y=2x+1C. y=3/xD. y=x³7. 在平面直角坐标系中，点P（2，3）到原点的距离是（）A. 2B. 3C. √13D. 58. 若|a|=3，|b|=5，则|a+b|的最大值是（）A. 8B. 10C. 13D. 159. 若m+n=6，mn=8，则m²+n²的值为（）A. 40B. 36C. 50D. 4810. 在△ABC中，若a²+b²=c²，则△ABC是（）A. 等腰三角形B. 直角三角形C. 等边三角形D. 钝角三角形二、填空题（每题4分，共40分）11. 若x²-4x+3=0，则x的值为_________。
12. 在直角坐标系中，点A（3，4）关于x轴的对称点的坐标是_________。
13. 若a²=16，则a的值为_________。
14. 在△ABC中，∠A=90°，∠B=30°，则∠C的度数是_________。
15. 若x²-5x+6=0，则x的值为_________。
八年级上册英语单元测试卷
八年级上册英语单元测试卷一、单项选择（每题1分，共15分）1. —______ do you go to the movies?—Once a month.A. How longB. How oftenC. How soonD. How far.2. My sister is ______ than me.A. more tallerB. much tallerC. much more tallD. the tallest.3. —What do you think of the movie?—It's ______ interesting. I like it very much.A. a kind ofB. kind ofC. kinds ofD. all kinds of.4. There ______ a lot of people at the concert last night.A. wasB. wereC. isD. are.5. —Can you come to my party this Saturday?—______. I have to prepare for my exam.A. I'd love toB. Sorry, I can'tC. SureD. Certainly.6. My mother wants me ______ more vegetables.A. eatB. eatsC. to eatD. eating.7. —______ is it from your home to school?—It's about two kilometers.A. How longB. How farC. How muchD. How often.8. She is good at singing. She wants to be a ______ in the future.A. singerB. dancerC. writerD. actor.9. If you don't know the word, you can ______ in the dictionary.A. look it upB. look up itC. look for itD. look it for.10. The boy is ______ young ______ go to school.A. so; thatB. too; toC. such; thatD. enough; to.11. I'm ______ than my sister, but she is more hard - working.A. more outgoingB. outgoingC. most outgoingD. the most outgoing.12. —______ did you start to play the piano?—When I was five years old.A. WhatB. WhyC. WhenD. How.13. There are some ______ between the two pictures.A. differentB. differenceC. differencesD. differently.14. They decided ______ to the mountains this weekend.A. goB. to goC. goingD. went.15. She ______ a lot of time reading books every day.A. takesB. spendsC. paysD. costs.二、完形填空（每题1分，共10分）I have a good friend. His name is Tom. He is a nice boy, but he eats too 16 and doesn't like sports.He has a big 17 every morning. He has four eggs, 18 of bread withbutter and 19 big glass of milk for it. 20 lunch, he eats two hamburgers, a lot of French fries 21 some chicken. He drinks a lot of cola or soda, too. For dinner, he likes beef and salad.He 22 eats beef, chicken, hamburgers, and eggs. He likes ice - cream, cola and soda, 23.Too much food is not 24 for health. So Tom is very 25.16. A. many B. much C. some D. any.17. A. breakfast B. lunch C. dinner D. supper.18. A. much B. many C. lots D. lot.19. A. a B. an C. some D. any.20. A. For B. On C. In D. Of.21. A. for B. and C. of D. but.22. A. often B. never C. seldom D. not.23. A. and B. but C. too D. also.24. A. bad B. good C. important D. hungry.25. A. healthy B. fit C. thin D. fat.三、阅读理解（每题2分，共30分）A.I'm Li Ming. I love traveling very much. I have been to many places so far.Last year, I went to Yunnan with my family. We visited Dali, Lijiang and Xishuangbanna. The scenery there was very beautiful. In Dali, we went boating on Erhai Lake. In Lijiang, we walked around the ancient town and enjoyed the local culture. Xishuangbanna was full of tropical plants and animals. We also tasted a lot of delicious local food during the trip.This year, I want to go to Tibet. I'm interested in the unique culture and the magnificent Potala Palace there. I believe it will be another wonderful journey.26. Where did Li Ming go last year?A. Tibet.B. Yunnan.C. Sichuan.D. Guangxi.27. What did they do in Dali?A. They walked around the ancient town.B. They tasted local food.C. They went boating on Erhai Lake.D. They visited the Potala Palace.28. Which place was full of tropical plants and animals?A. Dali.B. Lijiang.C. Xishuangbanna.D. Tibet.29. Where does Li Ming want to go this year?A. Yunnan.B. Tibet.C. Sichuan.D. Guangxi.30. What is Li Ming interested in about Tibet?A. The local food.B. The ancient town.C. The unique culture and the Potala Palace.D. The tropical plants and animals.B.Most children like watching TV. It's very interesting. By watching TV they can see and learn a lot and know many things about their country and the world. Of course, they can also learn over the radio. But they can learn better and more easily with TV. Why? Because they can hear and see at the same time. But they can't see anything over the radio.TV helps to open children's eyes. It helps to open their minds, too. They learn newer and better ways of doing things. They may find the world is now smaller than before.Many children watch TV only on Saturday or Sunday evening. They are always busy with their lessons. But a few children watch TV every night. They go to bed very late. They can't have a good rest. How about you, my young friend?31. Most children like watching TV because ______.A. it's colorfulB. it's interestingC. it's beautifulD. it's useful.32. Children can see and learn a lot by ______.A. listening to the radioB. reading booksC. watching TVD. visiting places.33. Children can learn better and more easily with TV because ______.A. they can hear and see at the same time.B. they can hear at the same time.C. they can see at the same time.D. they can't see anything over the radio.34. A few children go to bed late because they ______.A. are busy with their lessons.B. do their homework.C. watch TV every night.D. listen to the radio.35. Which of the following is NOT true?A. By watching TV, children can know many things about their country and the world.B. Watching TV helps to open children's eyes and minds.C. A few children watch TV every night and they can have a good rest.D. Many children watch TV only on Saturday or Sunday evening.C.There are all kinds of trains in the world. There are trains to carry people, trains to carry animals or carry things. There are fast trains and slow trains. Some trains go through hills, some trains go over rivers, and some trains go under the ground.In big cities, the streets are usually very busy. So you can find subways under the ground. They carry people quickly in and out of the city. Can a train run over water? Yes, it can. There are many bridges over the rivers. The trains can easily run over the bridges. But it is not easy to build the bridges.Today's trains have dining rooms for people. You may eat something on the train. Trains are useful to men, women and children. Many children have model trains. With the model trains they can build their own railways and enjoy the wonderful world of trains.36. There are ______ kinds of trains in the world.A. a fewB. manyC. someD. little.37. The underground trains carry people ______.A. in and out of big citiesB. from big cities to small towns.C. slowlyD. in and out of countries.38. Many children can enjoy the wonderful world of trains because they ______.A. have real trainsB. have model trainsC. often take trainsD. watch trains.39. Which of the following is TRUE?A. There are trains only to carry people.B. We can find trains under the ground.C. Trains can't go over water.D. It's easy to build bridges.40. The passage mainly tells us about ______.A. different kinds of trainsB. trains around the world.C. trains' functionsD. all of the above.四、根据句意及首字母提示补全单词（每题1分，共10分）41. I'm h______. Can you give me something to eat?42. It's i______ for us to keep healthy.43. There are many tall b______ in our city.44. We should do more e______ to keep fit.45. My mother often goes s______ on weekends.46. I'm t______ after a long walk.47. She is a very f______ singer. Everyone likes her songs.48. He is a little q______ in class, but he is very hard - working.49. We had a great time at the p______ yesterday.50. The movie theater is not far from here. It's n______.五、句型转换（每题2分，共10分）51. She is taller than any other girl in her class. (改为同义句) She is ______ ______ girl in her class.52. I go to the movies once a month. (对划线部分提问)______ ______ do you go to the movies?53. He has a lot of friends. (改为否定句)He ______ ______ a lot of friends.54. They will go to the park tomorrow. (改为一般疑问句)______ they ______ to the park tomorrow?55. She does her homework every day. (改为否定句)She ______ ______ her homework every day.六、书面表达（15分）请以“My Hobbies”为题，写一篇80词左右的英语短文，介绍一下你的爱好。
单元测试卷_八年级数学大小卷
一、选择题（每题3分，共30分）1. 下列各数中，正数有（）A. -1/2，-3，0B. 0.5，-1，3C. -1/2，0.5，3D. -3，0，12. 下列各数中，绝对值最小的是（）A. -3B. -2C. 1D. 03. 下列各数中，有理数是（）A. √9B. √16C. √25D. √364. 下列各数中，无理数是（）A. √4B. √9C. √16D. √255. 下列各数中，负数有（）A. -1/2，0.5，3B. -3，0，1C. -1/2，-3，0D. 0，1，36. 下列各数中，偶数有（）A. -2，3，0B. 1，-2，0C. -1，-2，0D. 0，2，47. 下列各数中，奇数有（）A. -1，-2，0B. 1，-2，0C. -1，1，0D. 0，2，48. 下列各数中，质数有（）A. 1，2，3B. 2，3，4C. 3，4，5D. 5，6，79. 下列各数中，合数有（）A. 1，2，3B. 2，3，4C. 3，4，5D. 5，6，710. 下列各数中，正整数有（）A. -1，0，1B. 0，1，2C. -1，1，2D. -1，0，2二、填空题（每题3分，共30分）11. -3的相反数是______。
12. 2/3的倒数是______。
13. -2/5的绝对值是______。
14. 下列各数中，比-2大的有______。
15. 下列各数中，比0小的有______。
16. 下列各数中，比1大的有______。
17. 下列各数中，比-1小的有______。
18. 下列各数中，比√4小的有______。
19. 下列各数中，比√9大的有______。
20. 下列各数中，比√16小的有______。
三、解答题（每题10分，共30分）21. 计算下列各式的值：（1）-3 + 4 - 2（2）5/6 - 1/3 + 1/2（3）2/5 × (-3/4) ÷ (-1/2)22. 简化下列各式的值：（1）(-3/4) × (-2/5)（2）(1/2) ÷ (3/4)（3）(-1/3) + (-2/3)23. 解下列方程：（1）2x - 3 = 5（2）5 - 3x = 2（3）4x + 2 = 10答案：一、选择题：1. C2. D3. C4. D5. C6. D7. C8. B9. C 10. B二、填空题：11. 3 12. 3/2 13. 2/5 14. -2/3，-1，-1/2，-1/3，-1/4，... 15. -3，-2，-1，-1/2，-1/3，... 16. 2，3，4，5，6，... 17. -2，-1，-1/2，-1/3，...18. -2，-1，-1/2，-1/3，... 19. 2，3，4，5，6，... 20. -2，-1，-1/2，-1/3，...三、解答题：21. （1）-1 （2）1/4 （3）-122. （1）3/10 （2）2/3 （3）-123. （1）x = 4 （2）x = 1 （3）x = 2。
2024-2025 部编版历史八年级上册 单元提优测评卷(一)(第一、二单元) 试卷(教师版)
单元提优测评卷（一）(第一、二单元)（45分钟50分）一、选择题(本大题共12小题,每小题2分,共24分)1“苟利国家生死以,岂因祸福避趋之”,林则徐的这一联诗句被习近平总书记视为饱含着“报国情怀”。
能充分体现林则徐“报国情怀”的是(A)A.虎门销烟B.三元里抗英C.收复新疆D.黄海海战2(2023·苏州模拟)阅读下图《1838-1852年英国制造品输华值》(严中平《中国近代经济史》)。
对图表信息解读正确的是(C)A.鸦片战争后英国对华商品输出持续增长B.英国发动两次鸦片战争占领了中国市场C.五口通商便利了英国对中国的商品输出D.中国的民族资本抵制了英国的商品倾销32023年10月13日某媒体报道:圆明园建筑构件7件石柱文物回归祖国。
这是继西洋楼海晏堂的马首铜像之后,又一批回归圆明园的流失海外重要文物。
掠走它们的军队是(B)A.八国联军B.英法联军C.日本军队D.英国军队4(2023·广州中考)蒋廷黻在《中国近代史》中提道:“可惜道光、咸丰年间的人没有领受军事失败的教训,战后与战前完全一样,麻木不仁,妄自尊大。
直到咸丰(1851-1861年)末年英、法联军攻进了北京,然后有少数人觉悟了,知道非学西洋不可。
”这说明第二次鸦片战争(B)A.打破了中国闭关锁国的状态B.刺激了中国人开始向西方学习C.使中国的自然经济走向瓦解D.使中国丧失了完整独立的主权5(2023•太原期中)下图是张华同学绘制的反映某历史事件因果联系的思维导图。
据此判断该事件是(B)A.旅顺大屠杀B.太平天国运动C.义和团运动D.台湾反割台斗争6(2023·天津中考)1866年,三口通商大臣崇厚筹办天津机器局东局和西局。
东局原址位于天津城东贾家沽道,是中国第一家近代化火药厂。
这一洋务企业创办的目的是(A)A.自强B.求富C.民主D.共和719世纪60年代以后,中国西北、西南、东南边疆地区安全遇到了严重危机。
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2013-2014年星火教育八年级第十五周周测科学试卷（测试范围：八年级上物理第六章）一、选择题（每题2分，漏选给1分，计38分）1、决定一个物体质量大小的因素是（）A、物体的形状B、物体所处的地理位置C、物体所处的状态D、物体所含物质的多少2、一铁块在下列几种情况下，质量发生变化的是（）A、将铁块加热后轧成薄铁片B、带到月球上称质量C、将铁块熔化后铸成铁锅D、将铁块锉成圆柱体3、质量是1.5×106ｍg的物体，可能是（）A、一粒沙子B、一头牛C、一只鸡D、一只鸡蛋4、在农村常用盐水进行选种，它所依据的原理是下列物理量中的（）A、重力B、密度C、体积D、质量5、一块金属的密度为ρ，质量为ｍ，把它分割成三等份，那么每一块的密度和质量分别是（）A、ρ/3，ｍB、ρ/3，ｍ/3C、ρ，ｍD、ρ，ｍ/36、蜡烛在燃烧过程中，它的质量、体积、密度的变化情况是（）A、质量不变，体积变小，密度变大B、质量变小，体积变小，密度不变C、质量变小，体积不变，密度变小D、质量、体积、密度变小7、关于物体的质量、体积和密度的关系，下列说法中正确的是（）A、质量大的物体，体积一定打B、体积大的物体，密度一定小C、同种材料制成的实心物体，体积大质量也一定打D、不同材料制成的实心物体，质量大的密度一定大8、1ｍ3的冰和1ｍ3的水相比较（）A、冰和水的体积相同，水比冰的质量大B、冰的体积跟它全部熔化成水后的体积相同C、水全部结成冰后，与11ｍ3冰的质量相同D、冰的密度比水小，冰的质量比谁大9、某同学在使用托盘天平时，把天平放在水平台上后，指针偏向分度盘的右侧，他应该如何调节（）A、把横梁右端的螺母向右移动B、把横梁右端的螺母向左移动C、将游码向右移动D、将天平天平底座的左侧垫高10、天平调节好之后，在称物体质量时，右盘已放入砝码，游码也已经移到了某一位置，这时发现指针在分度盘中线的左侧少许，正确的操作应是（）A、将右盘中的砝码换得小一些B、将游码左移C、将游码右移D、将平衡螺母向左调11、若游码没有放在零刻度处就将天平的横梁调节平衡，用这样的天平称物体的质量所得到数据比物体的实际质量（）A、偏大B、偏小C、不变D、不能确定12、（多选）在用调好的托盘天平测物体质量的过程中，为了使横梁重新平衡，下列方法中正确的是（）A、可以增减砝码并调节游码，使天平重新平衡B、可以增减砝码并调节平衡螺母，使天平重新平衡C、可以移动游码，使天平重新平衡D、可调换物体与砝码的位置，使天平重新平衡13、周梦迪同学用天平称一块矿石的质量，把天平调节好后错把矿石放在右盘，在左盘放50 g、20 g砝码各一个，又把游码拨到标尺4 g处，达到平衡，这块矿石的质量应该是（）A、74 gB、70 gC、66 gD、78 g14、一个瓶的质量是200 g，装满水时的总质量是700 g，装满另一种液体时总质量是600 g，那么这种液体的密度（）A、0.8×103kg/m3B、0.86×103kg/m3C、1.2×103kg/m3D、3×103kg/m315、甲、乙两立方体的边长之比是2:1，质量之比是4:3，那么甲、乙两物体的密度之比是（）A、3:8B、4:6C、1:6D、2:316、要测金属块的密度需要以下步骤，其中排列科学合理的是（）①把金属块放在天平左盘，砝码放在右盘称质量②观察记录放入金属块后量筒液面的刻度值③观测砝码和游码值并记录④观测记录未放入金属块时量筒液面的刻度值⑤计算密度⑥调节天平A、①②③④⑤⑥B、④②①③⑤⑥C、⑥①③④②⑤D、⑥⑤④③②①17、100 g水全部变成水蒸气后，则（）A、质量变小，密度也变小B、质量不变，密度也不变C、质量变小，密度不变D、质量不变，密度变小18、（多选）根据密度公式ρ=mv，下列结论正确的是（）A、物质的密度与其质量成正比B、物质的密度与其体积成反比C、同种物质的质量与体积成正比D、物质的密度等于其质量与体积的比值19、体积和质量都相等的铜球和吕球，以下说法不正确的是（）A、铜球一定是空心的B、吕球一定是空心的C、如果吕球是空心的，则铜球一定是空心的D、如果两个球都是空心的，则铜球空心更大些二、填空题（每空1分，共27分）1、1ｍL=_____cｍ3 0.5 cｍ3=_____ｍ3 0.05ｔ=_____㎏ 2.7 g / cｍ3=_____㎏/ｍ32、地球质量是6.0×1021ｔ，一个苹果的质量是150 g，地球的质量是一个苹果质量的_____倍；一个米粒的直径大约是1ｍｍ，分子的直径大约是0.4ｎｍ，米粒直径是分子直径的_____倍。
3、纳米技术是指纳米尺度内的科学技术，它是现代科学技术的前沿。
纳米是很小的长度单位，1ｎｍ=_____ｍ，一张纸的厚度大约只有0.1ｍｍ，合_____ｎｍ。
4、为了正确地表示下列各物理量的数值，请在横线上填写确切的单位：一名初中生的质量大约是45_____，一头大象的质量大约是5.8_____，一只兵乓球的质量大约是0.27_____.5、质量相等的实心木球和实心铁球，体积较大的是_____；体积相等的实心木球和实心铁球，质量较大的是_____。
6、质量是21.6 g的蜡块体积是24 cｍ3，蜡块的密度是______㎏/ｍ3，将这蜡块切掉一半，剩下半块蜡的密度是______㎏/ｍ3。
7、一个瓶子最多能盛1000g水，用这个瓶子盛煤油，最多可盛______g。
（ρ煤油=0.8×103kg/m3）8、将打气筒的出气口封住，使气筒内的空气不能跑出。
现将打气筒活塞向下压，这时倍封住空气的质量______，体积______，空气的密度______（填“变大”、“变小”或“不变”）9、用天平称得一个空烧杯的质量为25.5g，向烧杯中倒入一定量的盐水后，右盘的砝码是100g、20g、5g，游码所对的刻度是0.8g，烧杯内盐水的质量是______。
10、小红同学在用天平称物体的质量后，取下左盘的物体和右盘的砝码，并使游码拨回到“0”位置。
这时他发现天平横梁没有平衡，指针偏向分度盘中央刻度线左侧，则他称量物体质量所得到结果又可能______（填“偏大”、“偏小”或“不变”）。
11、量筒中有50ｍL的水，把质量为565g的某种金属块全部浸没在量筒内的水中，水面处刻度恰好是100ｍL，那么金属块的体积是______ cｍ3，此金属的密度是_______ g /cｍ3。
12、完全相同的三个瓶子，分别装满水、酒精、硫酸，甲瓶装水，乙瓶装酒精，丙瓶装硫酸，他们的总质量，由大到小排列顺序是_______、_______、_______。
13、一张薄铁板的长4ｍ，宽1ｍ，质量为31.6㎏，若铁的密度为7.9×103kg/m3，则铁板的平均厚度是_______㎝。
三、实验探究题(14分)1、（4分）老师为课题研究小组布置了这样一个课题：利用杆秤和其他一些小配件，设计制造出一杆能测出液体密度的“密度杆秤”。
李曦同学看到这个课题后，经过论证和实验，归纳出如下的一种方法：在称盘中放一个溶积为500ｍＬ、质量为200 g的玻璃容器，然后在杆称的某些刻度上标上密度值，就制成了一杆简单而实用的液体密度称（如图所示），只要在玻璃容器中加500ｍＬ的待测液体，就可以直接“称”出该液体的密度，那么，在这杆秤上，密度为“0”的刻度应标在原刻度__________㎏处；杆秤上“0.6㎏”刻度处对应的密度值为__________ kg/m3。
2、（4分）杨阳同学为了测定某种液体的密度，设计了下面的实验数据记录表格，表格中已经分别了烧杯和某种液体的总质量，下图中分别表示的是她将一部分液体倒入量筒后，烧杯和剩余液体的总质量及从烧杯中倒入量筒内液体的体积。
请根据图中表示的情况，帮助杨阳同学完成实验数据表格的填写。
烧杯和液体的的总质量ｍ总/g烧杯和剩余液体总质量ｍ1/g倒出液体的质量ｍ2/g倒出液体的体积V/ Cm3液体的密度ρ/ g·ｍ-1100.8 3、（6分）如图所示，A、B是从一块厚度均匀的薄铁皮上截下来的两块小铁皮，其中A块是正方形，B块形状不规则。
给你刻度尺、天平和砝码，你能否测算出B块铁皮的面积？写出测量步骤并推导出面积的表达式。
四、计算题（6+6+9=21)1.体积是5×10-3m3的铁球，测的其质量为25kg,，试判断此球是空心的还是实心的？（ρ铁=7.8x103千克/米3）2.. 一只空心铝球的质量是27克，如果把它的空心部分注满水之后，其总质量是43克，求铝球的体积是多少？3.杯盛某种液体，测得液体体积V和液体与量杯共同质量m的关系如图所示，由图求：（1）量杯的质量是多少克？（2）该液体的密度是多少？（3）当液体的体积为503cm时，液体的质量为多少？AB参考答案一、1. D 2. B 3. C 4.B 5. D 6.B7. C 8. A 9. B 10. C 11. A 12.AC 13. C 14. A 15.C 16.C 17. C 18. CD 19. B二、1.5×10-7 50 2.7×103 2. 4×1025 2.5×1063. 10-9 1054. ㎏ｔ g ㎏5.木球铁球6. 0.9×1037.8008.不变变小变大9.100.3 g 10. 偏大11.50 12.丙甲乙13. 0.1三、 1.0.2 0.8×103 2. 54.6 46.2 42 1.13. （1）用刻度尺测出A的边长为ａ；（2）用天平分别测出A、B的质量ｍA、ｍB。
B的面积：S B= mBmAａ2 （由于两块铁皮的厚度相同，故它们的面积与体积成正比，即S A：S B=V A：V B，而它们的材料又相同，则体积又与质量成正比，由此可得S A：S B=V A：V B，所以只要测出ｍA、ｍB和S B即可求得B的面积）四、1、方法一：铁球的平均密度是ρ=m/V=25kg,/ 5×10-3m3=5×103kg/m3 因为ρ〈ρ铁所以是空心方法二：体积是5×10-3m3的实心铁球质量为m =Ρv=7.8x103kg/m3×5×10-3m3=39 kg 因为m球〈m, 所以是空心方法三：质量是25kg的实心铁球体积为V =m/ρ=25kg/7.8x103kg/m3=3.21 ×10-3m3因为V球>V , 所以是空心2 、水的质量m水=43g－27g=16g V空=m水/ρ水=16g/1g/cm3=16cm3V铝=m铝/ρ铝=27g/2.7g/cm3=10cm3 所以铝球的体积是V=26 cm33、40g 1.0×10-3kg/m3 50g。