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2024年四川南充中考物理试题及答案 (2)

2024年四川南充中考物理试题及答案  (2)

2024年四川南充中考物理试题及答案一、选择题(本大题1-10小题只有一项符合题目要求,每小题3分;11-12小题有多项符合题目要求,全部选对得4分,选对但不全的得2分,有错的得0分,共38分)1. 以下是同学们对一些常见物理量进行估测,其中符合实际的是()A. 托起两个鸡蛋的力约为10NB. 地球的直径约为63.7kmC. 人的正常体温约为37℃D. 某中学生50m短跑成绩约为3s2. 关于如图所示的四个情景,下列说法正确的是()A. 甲图中两个底面削平的铅块紧压在一起后能吊住重物,主要是由于大气压强的作用B. 乙图中红墨水在热水中比在冷水中扩散快,说明分子做无规则运动的剧烈程度与温度有关C. 丙图双手互搓取暖,是通过热传递方式改变手的内能D. 丁图中活塞向下运动,这是内然机的压缩冲程3.川北皮影,又称“影子戏”或“灯影戏”,是一项具有丰富历史和深厚文化底蕴的国家级非物质文化遗产。

它是用灯光将受皮影的操纵者(拦门匠)操作的人物或物件表演的影投射到屏幕上,如图甲。

图①②③④现象中与川北皮影成像原理相同的是( )A. ①图:海市蜃楼B. ②图:南充清辉阁倒影C. ③图:手影游戏D. ④图:鱼的实际位置在看到的“鱼”的下方4. 用飞机向云层撒干冰进行人工降雨,出现下列物态变化,其中放热的是()A. 干冰迅速升华成二氧化碳气体B. 小冰晶在下落过程中熔化为小水珠C. 小雨滴在下落过程中部分汽化为水蒸气D. 云层中的水蒸气凝华成小冰晶5. 关于近期举行的2024年巴黎奥运会选拔赛的比赛项目,下列说法正确的是( )A. 运动员在跳鞍马过程中要助跑,是利用运动员的惯性B. 运动员在做单杠项目前,手要擦上滑石粉,是为了减小摩擦力C. 在自由体操项目中,运动员在空翻离地后到落回地面前,不受重力D. 运动员站在平衡木上静止不动,受到的重力与运动员对平衡木的压力是一对平衡力6.闭合,指示灯L亮,但电不戴头盔存在安全隐患,于是张明同学设计以下方案:骑行前,扫码成功后开关S1机不工作;从车头取出头盔并戴上后,头盔内遥控设备遥控S闭合,电动机才通电工作;若只戴头盔不扫2码则无法骑行。

高一第一学期12月英语周练(六)试卷 Word版含答案

高一第一学期12月英语周练(六)试卷 Word版含答案

平遥二中高一年级周练英语试题(6)班级_______ 姓名_________一阅读理解(7X5)(一)we often find waste in our school.Some students ask for more food than they can eat, and others often forget to turn off the lights when they leave the classroom.They say they can afford these things. But I didn't agree with them。

Waste can bring a lot of problems.Although China is rich in some resources.We are short of others, for example,fresh water. It's reported that we’ll have no coal or oil to use in 100 years.So if we go on wasting our resources, what can we use in the future and where can we move?Think about it.I think we should say no to the students who waste things every day. Everybody should stop wasting as soon as possible.In our everyday life, we can do many things to prevent this from happening, for example, turn off the water taps when we finish washing, turn off the lights when we leave the classroom , try not to order more food than we need, and so on. Little by little, everything will be changed. Waste can be stopped one day, if we do our best.1.From the passage we know that some students often____________in the school.A eat too muchB don’t work hardC waste thingsD throw rubbish everywhere2.Which of the following is right?A Students never waste things.B Waste can bring no problem.C China is rich in fresh water.D Waste brings problems.3.Which is the best title of the passage?A Stop wasting.B School Life.C Waste in the school.D Rich resources in China.(二)You may ride your bicycle in a rush to get to school every morning. You may fight to get a bit of space on a bus or on the subway. You may also watch taxis crawl their way through traffic jams.No matter where you are, all big cities around the world have traffic jams these days. Although they all have their problems, many cities also have a type of transport that has become a cultural icon (象征物).In London, to avoid the traffic jams above ground, people use the “underground”,also called the “tube”. The city has the oldest and most complicated underground railway systems in the world and the underground is the pride of many Londoners. With 12 lines and 275 stations across the city, the underground, is normally the quickest and easiest way of getting across London. In London, you are never far from a tube station.New York is famous for its yellow cabs. They serve as a quick and easy way of getting across Manhattan, where the subway doesn't take you everywhere. Stopping a cab is easy; just stick out your arm like what you do in any other cities. But, with over 12,000 yellow cabs in the Big Apple, New York also has traffic jams.Since 1873 when the first cable car started public service, the slow and noisy vehicle has been a symbol of San Francisco. Although once damaged by a serious earthquake and challenged by cars, the cable car is never caught in traffic jams, and it provides better views than the subway.But there are no such symbols in Los Angeles. If you visit this city, you'd better rent a car. The city's public transportation is terrible. It can take hours to get across the town by bus. The subway covers just a small part of the city centre. The light rail line only runs between the Long Beach Hotel and the city centre. That's why Angelenos (洛杉矶人) love their private cars more than any other people in the world.4.If you have a chance to visit London and want to avoid the traffic jams, you'd better ________.A.ride a bicycle B.take a taxiC.take the subway D.rent a car5.Which type of transport has become a cultural icon of the Big Apple?A.The noisy vehicles. B.Cable cars.C.The subway. D.Yellow cabs.6.People in Los Angeles like to hire private cars because of the following EXCEPT that ________.A.the public transport is terribleB.it is not expensive to take a private carC.the subway covers a small part of the city centreD.people have to spend hours getting across Los Angeles by bus7.The passage mainly tells us ________.A.how big cities in foreign countries develop their transportB.how people in cities avoid traffic jamsC.why London has the oldest and most complicated subway systemsD.why people call New York the Big Apple二完形填空(20X3)With an old wallet in his hand, a beggar was asking for some coins to buy something to eat along the street. He kept __1__ why those who had so much money were never __2__ and were always desiring more. “If I had enough to __3__ and to wear, I wouldn't want anything more,” he said.Just then Goddess Fortune came down the _4__ and saw the beggar. She said, “I've wished to __5__ you for long. Now, open your __6__ and I'll pour gold into it. But all that falls into the wallet will be pure __7__ while all falling upon the __8__ shall become dust.Understand?”“Yes,” said the beggar.“You should __9__!Your wallet is a __10__ one, so don't load it too heavily,” said the Goddess Fortune.The excited beggar could __11__ wait to have gold. He quickly opened his wallet, and a __12__ of gold was poured into it. The wallet grew heavier.“Is that enough? Isn't it cracking?” asked the Goddess Fortune.“Never __13__. It's still strong enough,” answered the beggar.The wallet was filled with so much gold that the beggar's hands began to __14__. “If only the golden stream would __15__ forever! Just a little more! __16__ just a handful or two,” said the beggar.“It's full. The wallet will __17__,” warned the Goddess Fortune. But the beggar requested, “It will __18__ a little more.”Some more gold was added and the wallet split (裂开). The __19__ fell upon the ground and became dust. The beggar had nothing but his __20__ wallet.1.A.showing B.explaining C.proving D.wondering 2.A.relaxed B.satisfied C.worried D.depressed 3.A.learn B.watch C.eat D.play4.A.street B.bridge C.yard D.forest5.A.praise B.forgive C.help D.welcome6.A.coat B.pocket C.Box D.wallet7.A.joy B.luck C.Water D.gold8.A.hand B.ground C.face D.table9.A.look out B.stand up C.stay out D.wake up10.A.small B.smelly C.worn D.full11.A.actually B.hardly C.clearly D.mostly12.A.stream B.piece C.pair D.bag13.A.leave B.request C.fear D.know14.A.spread B.close C.hide D.shake15.A.pour B.end C.dry D.race16.A.Take B.add C.Lend D.Send17.A.flow B.burst C.disappear D.change18.A.attract B.permit C.include D.hold19.A.present B.food C.treasure D.jewel20.A.broken B.magical C.mistaken D.colorful三语法填空(10X0.5)Sometimes homework can become a battle __1__ parents and children. Kids often appear to put off homework to the very last minute, while their parents are __2__ (worry) that they may fail at school if not __3__ (treat) it seriously and timely. The result seems to be conflict.As parents, you should give your children a chance to talk about their schoolwork. Even if you know nothing about __4__ particular subject, you can still help just by talking and listening and helping them find their own answers. If you do not understand the work they __5__ (give), use the Internet or ask friends and family to take a look.It is important to help your children keep a routine. Some children prefer to dohomework __6__ (direct) after school while others prefer to play first, and do homework __7__. Let your children decide what is right for them. Try to create a suitable place __8__ they can do homework, somewhere with good lighting and no __9__ (interrupt).If your children have specific learning needs and you feel the homework is an issue, make an appointment with the teacher as soon as you can __10__ (ask) for some advice.一阅读理解(7X5)完形填空(20X3)三语法填空(10X0.5)1._______________2._______________3._____________4.________________5._______________6._____________7.________________8._______________9._____________10._______________高一英语周练(六)答案一阅读理解(7X5)二完形填空(20X3)三语法填空(10X0.5)1 between 2. worried 3.treating 4. a 5.are given/have been given 6.d ter8. where 9.interruptions10. to ask。

剑桥一级考试真题及答案

剑桥一级考试真题及答案

剑桥一级考试真题及答案
一、听力部分
1. 听下面对话,选择正确的答案。

A. 去图书馆
B. 去电影院
C. 去公园
正确答案:A
2. 根据对话内容,回答以下问题。

Q: 他们计划什么时候见面?
A: 下午三点
正确答案:下午三点
二、阅读部分
阅读下面的短文,回答3-5题。

短文:(此处省略短文内容)
3. 文中提到的主要人物是谁?
A. 老师
B. 学生
C. 医生
正确答案:B
4. 他们在哪里见面?
A. 在学校
B. 在医院
C. 在家
正确答案:A
5. 他们讨论的主题是什么?
A. 健康
B. 学习
C. 旅行
正确答案:B
三、写作部分
根据以下提示写一篇不少于100字的短文。

提示:描述你最喜欢的季节和原因。

范文:
我最喜欢的季节是秋天。

秋天的天气凉爽宜人,不像夏天那么炎热,也不像冬天那么寒冷。

在这个季节里,树叶变成了金黄色,整个城市看起来像一幅美丽的画。

此外,秋天还是收获的季节,我喜欢和家人一起去果园采摘新鲜的水果,享受大自然的馈赠。

四、口语部分
6. 描述你上周末的活动。

(考生回答)
7. 谈谈你对环境保护的看法。

(考生回答)
请注意,以上内容仅为示例,实际考试题目和答案可能会有所不同。

考生应以实际考试内容为准。

牛津上海版六年级上英语Unit1-3综合练习含答案

牛津上海版六年级上英语Unit1-3综合练习含答案

六年级上英语U1-3综合练习Part 2 V ocabulary and Grammar(第二部分词汇和语法)Ⅱ. Choose the best answer (选择最恰当的答案) (共18分)22.The Queen of England lives in Buckingham Palace. Which of the following is correct for the underlinedword in the sentence? ______A. /'pæleɪs/B. /pleɪs/C. /ˈpæləs/D./'peləs/23.I have ______ /brɔ:t/ enough food for dinner. The word of the sound “/brɔ:t/” should be ______.A. broughtB. boughtC. bangedD. bored24.Which of the following underlined parts is different in pronunciation from others? ______A. There is a dragon boat on the river.B. He was the winner in the 100-metre race.C. What happened later?D.I don’t like to eat sweet moon cakes.25.Beijing is ________ capital of China.A. theB. aC. /D. an26.Have you got _________ in your suitcase?A. enough spaceB. space enoughC. spaces enoughD. enough spaces27.Shanghai is a modern city , and it is ___________ of China.A. eastB. in the eastC. to the eastD. on the east28.Have you _______ Aunt Kite’s telephone number yet?A. writeB. write downC. writtenD. written down29.Paul is badly ill now, so he _______ stay in hospital for several days.A. needsB. has toC. canD. have30. There are more than ___________ people in Beijing.A. 15 millionB. 15 millionsC. millions ofD. 15 millions of31. In the past, people __________ to other places by ship.A. travelB. travellingC. travelledD. travels32. A: __________ is it from your school to your home? B: It’s about ten minutes’ walk.A. How longB. How farC. How manyD. How soon33. The poor man ________ in 2005.A .diesB . diedC . deadD . death34. Miss Guo is telling her students _______ about her trip to Taiwan.A. /B. anythingC. nothingD. something35.I like American films better than Chinese ________.A .oneB . the oneC . onesD . the ones36. I would rather _________ at home on such a bad day.A .stayB . stayedC . stayingD . to stay37. Water keeps us alive, so we can’t live _______ it.A. withB. forC. withoutD. on38. Our teacher always give us ________ useful advice on study.A .aB . manyC . muchD . a few39.A: Would you like a cup of coffee with milk.B: _________. Coffee is my favourite drink.A.Yes, pleaseB.No, thanksC.You’re welcomeD.That’s all rightⅢ. Complete the following passage with the words or phrases in the box. Each can only be used once (将下列单词或词组填入空格。

大学英语六级巅峰阅读附答案详解

大学英语六级巅峰阅读附答案详解

大学英语六级巅峰阅读附答案详解American FootballAmerican football is a unique sport-it is a game about gaining territory as much as it is aboutscoring points. When two teams step onto a football field,each is battling for every inch it cantake from the other.Each team wants to defend the field that is behind it and invade the fieldin front of it. Ultimately,they want to gain enough ground to score a touchdown or field goal.Ground RulesFootball is a game of inches played on a field measured inyards-English measurements areused to track movements on the field.Teams succeed based on how many yards theyaccumulate or allow. An official NFL (National Football League) football field is a rectangle thatis 120 yards(110 m) long and 53 yards. I foot (49m) wide. Most fields are covered in grass andset in an outdoor (open-air} stadium. Some fields are made of artificial turf, which youll find inmany of the indoor stadiums.The most essential piece of equipment in a football game is the ball.Official NFL footballs arehandmade by Wilson Sporting Goods Co. The football is an oblong (椭圆形的) sphere and has alengthwise circumference(周线) and a width-wise circumference in the middle of the ball.With the equipment identified and the field set, we can now play a game.An NFL game isdivided into four quarters with an extended halftime break between quarters two and three.Each quarter is 15 minutes long. lf the teams are tied after four quarters of play,they play anadditional overtime period of 15 minutes. Inthe overtime, the first team to score wins.While the game time adds up to one hour, it usually takes three to four hours to play a game.Teams can stop the clock by running out of bounds,throwing an incomplete pass, or calling atime-out, of which they have three per half. Time also stops for each of the two-minutewarnings, observed two minutes prior to the end of the second and fourth quarters.Whos WhoAn NFL roster allows for no more than 53 players on a team. At any one time, only 11 playersper team are allowed on the field. To understand an NFL roster, you have to identify thethree teams within a team: theoffense. the defense and special teams. Each of these groupshas specialized positions with a specific setof skills.OffenseA teams offense is responsible for taking the ball down the field toward its opponents endzone. To do this. the offense throws the ball from one player to another or holds the ball andruns forward. Here are the basic offensive positions.Quarterback (QB)-This player throws the ball to receivers or hands it off to running backs. Thequarterback is also known as the "field general,"because hes the on-the-field leader.Offensive linemen-These players provide blocking for the quarterback and running backs.Individual linemanpositions include:Center (C)-The center is located in the middle of the line. This player hikes the ball to thequarterback by bringing the ball up between his legs.Guards (LG/RG)-These two players flank the center.Tackles (LT/RT)-The tackles are positioned on the outside of each guard;teams have twotackles.Receivers-Receivers run down the field and catch balls thrown by the quarterback. Receivers areeither wide receivers (WR) or tight ends (LTE/RTE).depending on where they are positioned onthe field.Running backs-Running backs take the ball from the quarterback and run up the field.Depending on the fomation (arrangement of the offensive players, a running back might becalled a tailback (TB), halfback (HB) or fullback (FB).DefenseWhen a team does not have possession of the ball, it is on defense and uses various methodsto prevent theother teams offense from scoring. These players must tackle the offensiveplayer who has the ball to stopthe offense from advancing.Defense will also try to take the ballaway from the offense.Here are the basic defensive positions:Defensive linemen-The linemen put pressure on the quarterback by trying to tackle him beforehe releases the ball. They also try to stop running backs.There are typically three or fourdefensive linemen.Linebackers-When there are four linemen, there is a middle linebacker(MLB) and two outsidelinebackers (OLB). When there are three linemen. there are two inside linebackers (ILB) and twooutside linebackers. Their job is to back up the linemen. as well as contain runners and coverreceivers on some plays.Cornerbacks (CB)-The cornerbacks prevent the wide receivers from catching the ball bybreaking up passes from the quarterback.Safeties-The safeties play deep behind the rest of the defense to prevent a long pass or run.A strong safety (SS) lines up on the side of the field where there are more offensive players.The free safety (FS) plays a deep, middle position.Special TeamsIf a team has to kick the ball, it uses its special-teams unit. This unit includes the teamskickers, theoffensive line, and players who run down the field to tackle a returner(see below).Placekicker-The placekicker kicks the ball through the goalposts to score points and kicks theball to theother team to start the game and after each scoring possession.Punter-The punter free-kicks the ball if his team cannot advance the ball down the field.Returner-During a kickoff or punt, the returner tries to catch the ball and return it as far as hecan. A player can score a touchdown on a rcturn.Moving the Ball and Finding the End ZoneA football game begins with a coin toss to decide which team will receive the opening kickoff.From the opening kickoff, the two teams battle to take possession of the ball. Possessionmeans that a teams offensive unit has the ball.A team can take possession of the ball in several ways:Receiving a kickoff-A team receives a kickoff at the beginning of each half and after the otherteam scores.Turnover-A team recovers a ball dropped by the other team (fumble)or picks off a ball thrownby the other teams quarterback (interception).Safety-A player is tackled in his own end zone, meaning the end zone his team is defending, sothe other team gets the ball though a free kick.Punt-The defensive team stops the offensive team from getting 10 yards in three downs, andthe offensive team free-kicks, or punts, the ball to the other team on third down.Turnover on downs-The offensive team fails to advance the ball lO yands in four downs andhas to surrenderthe ball to the other team.For those new to the sport the last two scenarios on this list may not make sense. One of themost confusing concepts of American-style football is the down-and-distance system. Everytime a team takes possessionof the ball, it is given a set of four downs, or attempts, to movethe ball l0 yards. If the team can movethe ball lO yards or more Within four downs, the teamgets another set of four downs to go another l0 yards, and so on. For instance, if a teamadvances 3 yards on first down, the next play is second down with 7 yards to go (second and7); if the team then advances 5 yards on second down, the next play is third and 2; if theteamthen advances 2 or more yards on third down, the next play is back to first and lO, wich awhole new set of four downs during which to advance the ball.美国橄榄球美国橄榄球是一项独特的运动,它是一种以攻占阵地得分的比赛。

2024年11版小学6年级上册第六次英语第一单元全练全测(含答案)

2024年11版小学6年级上册第六次英语第一单元全练全测(含答案)

2024年11版小学6年级上册英语第一单元全练全测(含答案)考试时间:100分钟(总分:120)B卷一、综合题(共计100题共100分)1. 填空题:My dad, ______ (我爸爸), enjoys fishing on weekends.2. 填空题:I have a __________ who lives next door. (邻居)3. 填空题:This ________ (玩具) can move by itself!4. 选择题:What is the name of the famous artist known for his "The Kiss"?A. Gustav KlimtB. Edvard MunchC. Henri MatisseD. Pablo Picasso答案: A5. 选择题:What color do you get when you mix red and white?A. PinkB. PurpleC. BrownD. Orange答案:A6. 填空题:My ________ (玩具) is a source of inspiration.7. 填空题:The bee collects ______.8. 听力题:Hydrochloric acid is found in our ________.9. 填空题:We have ______ (运动会) every year.10. 填空题:My ___ (小仓鼠) runs in circles all night.11. 听力题:He is playing a ___. (game)12. 听力题:The first female Prime Minister of India was _______ Gandhi.13. 听力题:The soup is ___. (delicious)14. 填空题:Understanding the importance of ______ in ecosystems can lead to better conservation efforts. (了解生态系统中植物的作用可以促进更好的保护工作。

小学上册第十一次英语第六单元全练全测(含答案)

小学上册第十一次英语第六单元全练全测(含答案)

小学上册英语第六单元全练全测(含答案)英语试题一、综合题(本题有50小题,每小题1分,共100分.每小题不选、错误,均不给分)1 My favorite drink is ________ (热巧克力) in winter.2 All matter is made up of tiny particles called ______.3 The city of Sofia is the capital of _______.4 A saturated fat is typically found in ______ foods.5 A reaction that occurs at low pressure is called a ______ reaction.6 My dad is a great __________. (运动员)7 The brightest star in the constellation Canis Major is ______.8 The first human to orbit the Earth was ________ (尤里·加加林).9 A chemical reaction can be classified as ______ or endothermic.10 The _____ (咖啡) is hot.11 A ______ often forages for food.12 I see a _____ (出租车) on the street.13 The chemical symbol for phosphorus is __________.14 What is the name of the famous statue in New York Harbor?A. Christ the RedeemerB. Statue of LibertyC. DavidD. Venus de Milo15 I like to play with my toy ________ (玩具名称) in the sunshine.16 Oxygen is essential for __________ to occur.17 What is the primary color of the sky on a clear day?A. RedB. BlueC. GreenD. Yellow答案:B18 The campfire is _______ (温暖的)。

小学上册第12次英语第六单元全练全测(含答案)

小学上册第12次英语第六单元全练全测(含答案)

小学上册英语第六单元全练全测(含答案)英语试题一、综合题(本题有100小题,每小题1分,共100分.每小题不选、错误,均不给分)1.What is 8 3?A. 4B. 5C. 6D. 7答案:B2.Which instrument is played with a bow?A. FluteB. ClarinetC. ViolinD. Trumpet答案:C3.We will _______ (eat) at a restaurant tonight.4. A ______ is a geological feature that rises sharply.5.Which animal is known as man's best friend?A. CatB. DogC. RabbitD. Hamster答案:B6.Which animal is known for its tall neck?A. ElephantB. GiraffeC. LionD. Tiger答案:B7.The ________ grows in water and floats.8.The first modern vaccine was developed for _______. (狂犬病)9.advocacy organization) campaigns for change. The ____10.What do you call the time when the sun goes down?A. SunriseB. DayC. SunsetD. Noon答案:C11.Goldfish swim in ______ water.12.Some plants can grow in _______ conditions.13.I call my friend's grandma __________. (奶奶)14.What do we call the process of changing from a solid to a liquid?A. MeltingB. FreezingC. BoilingD. Evaporating答案:A15.Most birds can ______.16.What is the name of the plant that grows in water and has broad leaves?A. CactusB. LilyC. FernD. Rose答案:B17.What do we call the time of year when flowers bloom?A. SpringB. SummerC. FallD. Winter18.My friend is very ________.19.ts can change colors with _____ (季节). Some pla20.What is the name of the famous statue in Rio de Janeiro?A. Christ the RedeemerB. Statue of LibertyC. DavidD. Venus de Milo21.The _______ (蝴蝶) flutters near flowers.22.The fish has beautiful _______ (鳞片).23. A squid can expel ink as a ________________ (防御) mechanism.24.I enjoy watching ________ (比赛) at the stadium.25.What is the name of the galaxy we live in?A. AndromedaB. Milky WayC. TriangulumD. Whirlpool答案:B26.My favorite part of the day is after school when I can play with my ____. (玩具名称)27.I like to watch ______ (纪录片) to learn about nature and wildlife.28.What is the primary source of light for our planet?A. MoonB. StarsC. SunD. Fire29.My brother wants to be a _______ (职业) when he grows up. 他想要 _______ (动词).30.Which animal is a symbol of wisdom?A. OwlB. EagleC. CrowD. Sparrow31.What do you call the person who teaches you at school?A. DoctorB. TeacherC. EngineerD. Chef答案:B32.urban heat island) phenomenon raises city temperatures. The ____33.The school is ________ my house.34.I saw a _______ (小鸭子) following its mother.35.An atom becomes an ion when it gains or loses ______.36.I love __________ in the summer.37. A ____ is a playful animal that loves to swim.38.What do we call the movement of tectonic plates?A. Continental DriftB. ErosionC. WeatheringD. Subduction39.The coyote howls at the _______ (月亮).40.The __________ (历史的传承) is essential for legacy.41. A saturated solution contains the maximum amount of ______.42.She is a good . (她是一个好的。

小学上册第十二次英语第六单元全练全测(有答案)

小学上册第十二次英语第六单元全练全测(有答案)

小学上册英语第六单元全练全测(有答案)英语试题一、综合题(本题有100小题,每小题1分,共100分.每小题不选、错误,均不给分)1. A puma is a kind of ________________ (山猫).2.The Wright brothers invented the ________.3.What is the capital city of Spain?A. BarcelonaB. MadridC. ValenciaD. Sevilla答案:b4. A _______ (小鹦鹉) enjoys eating seeds and fruits.5.The weather is _______ (多云的) today.6.My mom enjoys going to ____ (yoga) classes.7.The _______ (小浣熊) washes its food before eating.8. A chemical reaction can change the ______ of a material.9.What do we call a young eel?A. FryB. ElverC. KitD. Pup答案:B.Elver10.The __________ (历史的回应) addresses concerns.11.What is the name of the popular series about a boy who attends a school for wizards?A. Harry PotterB. Percy JacksonC. NarniaD. Lord of the Rings答案: A12.The _______ of the Earth protects us from harmful solar radiation.13.The chemical symbol for niobium is ____.14. A ______ (青蛙) can be found in gardens and ponds.15.Understanding how plants reproduce can enhance your gardening ______. (了解植物的繁殖方式可以提升你的园艺技能。

小学上册第12次英语第6单元全练全测(含答案)

小学上册第12次英语第6单元全练全测(含答案)

小学上册英语第6单元全练全测(含答案)英语试题一、综合题(本题有100小题,每小题1分,共100分.每小题不选、错误,均不给分)1.In which continent is Egypt located?A. AsiaB. EuropeC. AfricaD. South America答案:C2.The main component of phytochemicals is _____.3.Trees are important for ______ (空气) quality.4.I like to _____ (ride/drive) my bike.5.I can ________ (adapt) to changes quickly.6.The _______ (The Space Race) was a major aspect of the Cold War rivalry.7.The __________ is a famous geographical feature in North America.8.I call my teachers “.”9.The ______ (海豹) barks loudly on the rocks.10.We need to water the ______ (植物).11.What do we call a journey by train?A. TripB. RideC. Train rideD. Travel12.Which month comes after January?A. FebruaryB. MarchC. AprilD. May答案:A February13. A _______ (小角马) runs swiftly across the plains.14.What is the main ingredient in soap?A. WaterB. OilC. FatD. Lye答案:D15. A mixture of two or more substances is called a _____.16.My pet rabbit enjoys fresh ______ (蔬菜).17. A _______ is a solid that forms during a chemical reaction in solution.18.This ________ (玩具) was my first gift.19.His favorite color is ________.20.Some plants have _______ that smell very nice.21.I love to see __________ (花朵) blooming in the garden.22.The antelope runs very _____ fast.23.Certain plants can ______ (支持) sustainable agriculture.24.The __________ (社会变革) can lead to significant political changes.25._____ (sunlight) is essential for growth.26._____ (花卉配搭) creates visual interest in gardens.27.During a chemical reaction, bonds between atoms _____ (break) and new bonds form.28.The chemical symbol for vanadium is _______.29.The ________ (湿地) is crucial for biodiversity.30.The goat loves to _______ (吃) grass on the hill.31. A reaction that produces light is called a ______ reaction.32. A _______ reaction occurs when a single compound breaks down into simpler substances.33. A tiger is a large ______ (捕食者).34.My cousin is very __________ (有趣)。

南宁“PEP”2024年11版小学六年级第12次英语第一单元真题试卷(含答案)

南宁“PEP”2024年11版小学六年级第12次英语第一单元真题试卷(含答案)

南宁“PEP”2024年11版小学六年级英语第一单元真题试卷(含答案)考试时间:80分钟(总分:140)A卷一、综合题(共计100题共100分)1. 听力题:The Great Lakes are located in __________.2. 听力题:I see a ______ flying in the sky. (bird)3. 选择题:What is the value of 3 + 2 + 1?A. 4B. 5C. 6D. 7答案:B4. 填空题:The country of Italy is shaped like a __________. (靴子)5. 听力题:In photosynthesis, plants convert sunlight into _______.6. 选择题:What is the capital of Portugal?a. Lisbonb. Portoc. Farod. Braga答案:a7. 填空题:The ancient Egyptians believed in ________ to guide them in the afterlife.The _____ (computer/tablet) is useful.9. 填空题:My mother is a _____ (护士) who loves her job.10. 听力题:She is wearing a pretty ___. (scarf)11. 选择题:What is the main ingredient in pizza?A. RiceB. DoughC. PastaD. Bread答案: B12. 选择题:What do you call the study of the Earth's surface?A. GeographyB. GeologyC. MeteorologyD. Ecology答案:A13. 填空题:The ________ loves to jump and explore.14. 听力题:The Statue of Liberty was a gift from _______ to the United States.15. 听力题:The ______ is a vital part of agriculture.16. 选择题:How many countries are in the European Union?A. 27B. 28C. 29D. 30答案: A17. 听力题:The process of extracting metals from ores is called _______.What is the main language spoken in France?A. SpanishB. FrenchC. ItalianD. German答案:B19. 听力题:We go ________ (fishing) by the lake.20. 填空题:My brother is a __________ (项目负责人).21. 填空题:The leaves are __________ (绿色) in summer.22. 听力题:The Great Lakes are located in _______.23. 填空题:Planting trees can combat ______ (气候变化).24. 填空题:The prairie dog lives in ______ (地下) burrows.25. 填空题:My dad has a big _______ (我爸爸有一个大_______).26. 填空题:I like to _______ (与朋友一起)去健身房。

小学上册第十二次英语第六单元全练全测(含答案)

小学上册第十二次英语第六单元全练全测(含答案)

小学上册英语第六单元全练全测(含答案)考试时间:80分钟(总分:140)B卷一、综合题(共计100题共100分)1. 填空题:The bumblebee is important for _________ (授粉).2. 选择题:What is the name of the famous American author known for "The Old Man and the Sea"?A. F. Scott FitzgeraldB. Ernest HemingwayC. Mark TwainD. John Steinbeck答案: B3. 填空题:The ancient Egyptians were skilled in ______ (医学).4. 填空题:In _____ (阿根廷), Tango is a popular dance.5. 听力题:Acids taste _____ and can be sour.6. 听力题:The Earth's surface is home to diverse ecosystems, including ______ and wetlands.7. 选择题:Which animal can fly?A. FishB. BirdC. DogD. Cat8. 选择题:What do we call the soil used to grow plants?A. ClayC. CompostD. Potting soil9. 听力题:The chemical formula for bismuth subsalicylate is _______.10. 填空题:The butterfly is ________ (美丽).11. 填空题:_____ (nature) is beautiful in every season.12. 选择题:What is the process by which plants get energy from sunlight called?A. RespirationB. PhotosynthesisC. DigestionD. Germination13. 填空题:The ______ (小鸟) finds a safe spot to rest in the tree.14. 填空题:The ________ (气候带) affects plant growth.15. 填空题:I love _______ (吃水果).16. 选择题:What is the capital city of the Maldives?A. MaléB. Addu CityC. FuvahmulahD. Dhidhdhoo答案: A17. 听力题:Solutes are substances that are ______ in a solvent.18. 听力题:The chemical formula for magnesium oxide is __________.19. 选择题:Which of these is a type of tree?A. RoseC. OakD. Tulip答案:C20. 填空题:I have a collection of ________ (玩具名称) from around the world.21. 听力题:She is wearing a ______ hat. (yellow)22. 填空题:The country famous for its fashion is ________ (法国).23. 听力题:The gas released when vinegar reacts with baking soda is ______.24. 填空题:The firefly lights up the ______ (夜晚).25. 选择题:What is the largest moon of Saturn called?A. TitanB. GanymedeC. CallistoD. Europa26. 听力题:The flowers smell _____ (good/bad).27. 听力题:A __________ is formed from the cooling and solidification of magma.28. 选择题:What is the name of the famous scientist who developed the theory of relativity?A. Isaac NewtonB. Albert EinsteinC. Galileo GalileiD. Charles Darwin29. 听力题:The main source of energy for the Earth is the _______.30. 听力题:The chemical formula for ethanol is _____.31. 填空题:The _______ (小大熊猫) is a rare and beloved animal.32. 听力题:The Nile River flows through __________.33. 选择题:Which animal says 'meow'?哪种动物会“喵喵”叫?A. DogB. CatC. CowD. Sheep答案: B34. 选择题:What is the term for the process of a caterpillar turning into a butterfly?A. HibernationB. MetamorphosisC. MigrationD. Pollination答案:B35. 听力题:She likes to _____ movies. (watch)36. 填空题:Many flowers attract __________ (蝴蝶和蜜蜂).37. 选择题:What is the main ingredient in bread?A. SugarB. FlourC. RiceD. Corn38. 听力题:The _______ can help purify the air in your home.39. 听力题:I put my shoes _____ (on/under) the bed.40. 选择题:What is the main ingredient in a smoothie?A. IceB. FruitC. YogurtD. Milk41. 听力题:The chemical formula for sodium bicarbonate is __________.42. 填空题:The ancient Greeks held ________ to celebrate their culture.43. 听力题:The bat uses sound to find its ______.44. 听力题:Combustion reactions require fuel and ______.45. 选择题:What is the capital city of Madagascar?A. AntananarivoB. ToamasinaC. AntsirananaD. Mahajanga46. 听力题:The chemical symbol for beryllium is _____.47. 填空题:The _____ (sprout) comes out of the seed.48. 填空题:A _____ (狼) howls to communicate with its pack.49. 填空题:My sister enjoys __________ (制作视频).50. 听力题:I have a green ___. (ball)51. 选择题:What do we call the movement of the Earth around the sun?A. RotationB. RevolutionC. CirculationD. Orbit52. 填空题:The ________ is a good friend.53. 选择题:What do we call the part of the plant that grows underground?a. Stemb. Leafc. Rootd. Flower答案:c54. 选择题:What do you use to write on paper?A. BrushB. PencilC. ScissorsD. Ruler55. 填空题:The __________ is a major river that flows through India. (恒河)56. 听力题:The chemical symbol for potassium is ____.57. 填空题:I call my friend “.”58. 选择题:What do you call the science of classifying living things?A. TaxonomyB. BiologyC. EcologyD. Zoology答案:A59. 听力题:A ______ is used to indicate the concentration of a solution.60. 填空题:A ________ (植物科学家) conducts important research.61. 听力题:The _____ (teacher/student) is reading.62. 选择题:What is the largest ocean?A. AtlanticB. IndianC. ArcticD. Pacific63. 听力题:The _____ (老师) is kind.64. 听力题:The capital of Colombia is __________.65. 听力题:The ____ is often seen scurrying around looking for food.66. 填空题:A ________ (湿地) is important for wildlife.67. 填空题:I like to challenge myself with my ________ (玩具名称).68. 听力题:A chemical reaction that absorbs heat feels ______.69. 听力题:She likes to eat _______ (bananas).70. 听力题:In a chemical reaction, substances are transformed into new _____ (substances).71. 选择题:What do you need to write on a board?A. PenB. MarkerC. PencilD. Paint72. 选择题:What is the term for a scientist who studies the ocean?A. OceanographerB. Marine biologistC. GeologistD. Meteorologist答案: A73. 听力题:An example of a noble gas is ______.The ______ is known for its strength and size.75. 听力题:The flowers smell ______ (wonderful) in spring.76. 听力题:The ______ has a strong sense of smell.77. 听力题:I like to ________ (exercise) in the morning.78. 选择题:What is the name of the famous American national park located in California?A. YellowstoneB. YosemiteC. Grand CanyonD. Zion答案:B79. 选择题:What color is the sky on a clear day?A. GreenB. BlueC. YellowD. Red80. 听力题:A geese migrates to warmer ______ during winter.81. 填空题:My _____ (父母) love to travel.82. 听力题:The ____ has a soft, fluffy coat and loves to cuddle.83. 选择题:Which animal says "meow"?A. DogB. CatC. CowD. Duck84. 填空题:My puppy loves to dig in the ______ (沙土).A slug is similar to a ______ (蜗牛) but without a shell.86. 选择题:What is the color of the ocean?A. BlueB. GreenC. BrownD. Yellow答案: A87. 选择题:How many hours are in a day?A. 20B. 22C. 24D. 26答案:C88. 选择题:How do you say "hello" in Spanish?A. BonjourB. CiaoC. HolaD. Olá89. 听力题:The __________ is the largest ocean on Earth.90. 选择题:Which of the following is a type of tree?A. OakB. FlowerC. GrassD. Weed91. 选择题:What do we call a baby goat?A. KidB. CalfC. FoalD. Lamb答案:A92. 听力题:The chemical formula for octanoic acid is ______.The _____ (starfish) is unique.94. 填空题:The ________ (生态影响监测) keeps track of changes.95. 填空题:The __________ (晨曦) over the mountains is stunning.96. 填空题:The _____ (幼苗) needs sunlight to grow strong.97. 听力题:The __________ is the layer of rock that lies beneath the soil.98. 填空题:The __________ is a famous landmark in India. (泰姬陵)99. 听力题:The ____ is known for its ability to live in extreme conditions.100. 选择题:What color is a fire truck?A. BlueB. GreenC. RedD. Yellow答案:C。

2025版《南方凤凰台5A教案基础版物理第11章 电磁感应含答案1

2025版《南方凤凰台5A教案基础版物理第11章 电磁感应含答案1

2025版《南方凤凰台5A 教案基础版物理第11章 电磁感应含答案微专题17 电磁感应中的电路和图像问题 电磁感应中的电路与电荷量问题 1.内电路和外电路(1) 切割磁感线运动的导体或磁通量发生变化的线圈都相当于电源.(2) 该部分导体的电阻或线圈的电阻相当于电源的内阻,其余部分是外电路.2.电磁感应中电路知识关系图3.解决电磁感应中的电路问题三步骤4.电磁感应中电荷量的两个计算公式(1) q =I t (该公式适用于电流恒定的情况,若电流变化应用电流的平均值).(2) q =I t =n ΔΦR +r. (2024·金陵中学)如图所示,竖直平面内有一金属环,半径为a ,总电阻为R (指拉直时两端的电阻),磁感应强度为B 的匀强磁场垂直穿过环平面,与环的最高点A 铰链连接的长度为2a 、电阻为R 2的导体棒AB 由水平位置紧贴环面摆下,当摆到竖直位置时,B 点的线速度为v .此时AB 两端的电压大小为( D )A .Ba vB .Ba v 6C .2Ba v 3D .Ba v 3解析:导体棒AB 由水平位置紧贴环面摆下,当摆到竖直位置时,B 点的线速度为v ,感应电动势大小为E =B ·2a ·v +02=Ba v ,分析电路特点知,外电路相当于是R 2的两个电阻并联,则R 并=R22=R 4,故此时AB 两端的电压大小为U =R4R 2+R 4·E =Ba v 3,故选D.类题固法11.如图所示,有一个磁感应强度为B 的匀强磁场,磁场方向垂直纸面向里,一半径为r 、电阻为2R 的金属圆环放置在磁场中,金属圆环所在的平面与磁场垂直.金属杆Oa 一端可绕环的圆心O 旋转,另一端a 搁在环上,电阻值为R ;另一金属杆Ob 一端固定在O 点,另一端b 固定在环上,电阻值也是R .已知Oa 杆以角速度ω匀速旋转,所有接触点接触良好,Ob 不影响Oa 的转动,则下列说法中错误的是( C )A .流过Oa 的电流可能为B ωr 25RB .流过Oa 的电流可能为 6B ωr 225RC .Oa 旋转时产生的感应电动势的大小为B ωr 2D .Oa 旋转时产生的感应电动势的大小为 12B ωr 2解析:Oa 旋转时产生的感应电动势的大小为E =12B ωr 2,D 正确,C 错误;当Oa 旋转到与Ob 共线但不重合时,等效电路如图甲所示,此时有I min =E 2.5R =B ωr 25R ,当Oa 与Ob 重合时,环的电阻为0,等效电路如图乙所示,此时有I max=E 2R =B ωr 24R ,所以B ωr 25R ≤I ≤B ωr 24R ,A 、B 正确.2.如图所示,由某种粗细均匀的总电阻为3R 的金属条制成的矩形线框abcd ,固定在水平面内且处于方向竖直向下的匀强磁场中.一接入电路电阻为R 的导体棒PQ ,在水平拉力作用下沿ab 、dc 以速度v 匀速滑动,滑动过程PQ 始终与ab 垂直,且与线框接触良好,不计摩擦.在PQ 从靠近ad 处向bc 滑动的过程中( C )A .PQ 中电流先增大,后减小B .PQ 两端电压先减小,后增大C .PQ 上拉力的功率先减小,后增大D .线框消耗的电功率先减小,后增大解析:设PQ 左侧金属线框的电阻为r ,则右侧电阻为3R -r ,PQ 相当于电源,其电阻为R ,则电路的外电阻为R 外=r (3R -r )r +(3R -r )=-⎝ ⎛⎭⎪⎫r -3R 22+⎝ ⎛⎭⎪⎫3R 223R ,当r =3R 2时,R 外max =34R ,此时,PQ 处于矩形线框的中心位置,即PQ 从靠近ad 处向bc 滑动的过程中外电阻先增大,后减小,PQ 中的电流为干路电流I =E R 外+R 内,可知干路电流先减小,后增大,A 错误;PQ 两端的电压为路端电压U =E -U 内,因E =Bl v 不变,U 内=IR 先减小,后增大,所以路端电压先增大,后减小,B 错误;拉力的功率大小等于安培力的功率大小,P =F 安v =BIl v ,可知因干路电流先减小,后增大,PQ 上拉力的功率也先减小,后增大,C 正确;线框消耗的电功率即为外电阻消耗的功率,因外电阻最大值为34R ,小于内阻R ,根据电源的输出功率与外电阻大小的变化关系,外电阻越接近内阻时,输出功率越大,可知线框消耗的电功率先增大,后减小,D错误.电磁感应中的图像问题1.图像问题图像类型(1) 磁感应强度B,磁通量Φ,感应电动势E和感应电流I随时间t变化的图像,即B-t图像、Φ-t图像、E-t图像和I-t图像(2) 对于切割磁感线产生感应电动势和感应电流的情况,还常涉及感应电动势E和感应电流I随导体位移x变化的图像,即E-x图像和I-x图像问题类型(1) 由给定的电磁感应过程选出或画出正确的图像(2) 由给定的有关图像分析电磁感应过程,求解相应的物理量应用知识右手定则、安培定则、楞次定律、法拉第电磁感应定律、欧姆定律、牛顿运动定律和相关数学知识等2.分析方法3.电磁感应中图像类选择题的两种常见解法(1) 排除法:定性地分析电磁感应过程中物理量的变化趋势(增大还是减小)、变化快慢(均匀变化还是非均匀变化),特别是物理量的正负,排除错误的选项.(2) 函数法:根据题目所给条件定量地写出两个物理量之间的函数关系,然后由函数关系对图像作出分析和判断,这未必是最简捷的方法,但却是最有效的方法.(2023·如皋期末)如图所示,等边三角形金属框的一个边与有界磁场边界平行,金属框在外力F作用下以垂直于边界的速度匀速进入磁场,则线框进入磁场的过程中,线框中的感应电流i、外力大小F、线框中电功率的瞬时值P、通过导体某横截面的电荷量q与时间t的关系可能正确的是(C)A B C D解析:设线框边长为L 0,则切割磁感线的有效长度为L =L 0-2v t tan 60°=L 0-23v t 3,感应电流为I =B ⎝ ⎛⎭⎪⎫L 0-23v t 3v R=BL 0v R -23B v 2t 3R ,可知感应电流随时间均匀减小,A 错误;金属框匀速运动,外力与安培力平衡,外力大小为F =BIL=B 2⎝ ⎛⎭⎪⎫L 0-23v t 32v R可知,外力随时间的图像为抛物线,B 错误;电功率为P =I 2R =B 2⎝ ⎛⎭⎪⎫L 0-23v t 32v 2R 可知,电功率随时间的图像为开口向上的抛物线,C 正确;根据E =ΔΦΔt,I =E R ,q =I t ,得q =ΔΦR =B ΔS R ,磁场通过线框的有效面积随时间变化关系为ΔS =12(L +L 0)v t =L 0v t -3v 2t 23,得q =B R ⎝⎛⎭⎪⎫L 0v t -3v 2t 23,可知通过导体某横截面的电荷量随时间的图像为开口向下的抛物线,D 错误.类题固法21.如图所示,边长为2L 的等边三角形区域abc 内部的匀强磁场垂直纸面向里,b 点处于x 轴的坐标原点O ;一与三角形区域abc 等高的直角闭合金属线框ABC ,∠ABC =60°,BC 边处在x 轴上.现让线框ABC 沿x 轴正方向以恒定的速度穿过磁场,在t =0时,线框B 点恰好位于原点O 的位置.规定逆时针方向为线框中感应电流的正方向,下列能正确表示线框中感应电流i 随位移x 变化关系的是( D )A B C D解析:线框从0~L 过程,产生逆时针方向的电流,有效长度从0增大到32L ,故电流逐渐变大;从L ~2L 过程,产生逆时针方向的电流,有效长度从32L 逐渐减小到0,故电流逐渐变小;从2L ~3L 过程,产生顺时针方向的电流,有效长度从3L 逐渐减小到0,故电流逐渐变小;故D 正确.2.如图所示,竖直放置的U 形光滑导轨与一电容器串联,导轨平面有垂直于纸面的匀强磁场,金属棒ab 与导轨接触良好,由静止释放后沿导轨下滑.电容C 足够大,原来不带电,不计一切电阻.设金属棒的速度为v 、动能为E k 、两端的电压为U ab 、电容器上的电荷量为q ,它们与时间t 、位移x 的关系图像正确的是( B )A B C D解析:设导轨间距为L ,释放后电容器充电,电路中充电电流i ,棒受到向上的安培力,设瞬时加速度为a ,根据牛顿第二定律得mg -BiL =ma ,i =ΔQ Δt=C ·ΔU Δt =C ·BL Δv Δt =CBLa ,由此得mg -BLCBLa =ma ,解得a =mg m +B 2L 2C ,可见加速度不变,做匀加速直线运动,即v =at ,U ab =BL v =BLat ,故A 、C 错误;根据E k =12m v 2=12m ·2ax ,故B 正确;根据q =CU ab =BCLat ,与时间成正比,即与位移不是正比关系,故D 错误.配套精练一、 选择题1.如图所示,垂直纸面的正方形匀强磁场区域内,有一位于纸面的正方形导体框abcd ,现将导体框分别朝两个方向以v 、3v 速度匀速拉出磁场,则导体框从两个方向移出磁场的两个过程中( C )A .导体框中产生的感应电流方向相反B .导体框ad 边两端电势差之比为1∶3C .导体框中产生的焦耳热之比为1∶3D .通过导体框截面的电荷量之比为1∶3解析:将线圈拉出磁场的过程中,穿过线圈的磁通量都减小,由楞次定律判断出感应电流的方向都沿逆时针方向,A 错误;设正方形的边长为L ,线圈以v运动时,dc 边产生的感应电动势为E 1=BL v ,ad 边两端电势差为U 1=14E 1=14BL v ;线圈以3v 运动时,ad 边产生感应电动势为E 2=3BL v ,ad 边两端电势差为U 2=34E 2=94BL v ,电势差之比为U 1∶U 2=1∶9,B 错误;线圈以v 运动时,产生的焦耳热为Q 1=⎝ ⎛⎭⎪⎫E 1R 2·R ·L v =B 2L 3v R ,线圈以3v 运动时,产生的焦耳热为Q 2=⎝ ⎛⎭⎪⎫E 2R 2·R ·L 3v =3B 2L 3v R ,焦耳热之比为Q 1∶Q 2=1∶3,C 正确;将线圈拉出磁场的过程中,穿过线圈的磁通量的变化量相同,根据q =ΔΦR 可知,通过导体框截面的电荷量相同,D 错误.2.(2023·金陵中学)如图所示,宽为2L 的两条平行虚线间存在垂直纸面向里的匀强磁场.金属线圈位于磁场左侧,线圈平面与磁场方向垂直,af 、de 、bc 边与磁场边界平行,ab 、bc 、cd 、de 边长为L ,ef 、fa 边长为2L .线圈向右匀速通过磁场区域,以de 边刚进入磁场时为计时零点,则线圈中感应电流随时间变化的图线可能正确的是(感应电流的方向顺时针为正)(A)A B C D解析:第一阶段:从de边进入磁场到bc边将进入磁场这段时间内,de边切割磁感线产生感应电动势大小为E1=BL v,感应电流方向为逆时针即负方向,设此阶段的电流大小为I1;第二阶段:从bc边进入磁场到af边将进入磁场这段时间内,de、bc边一起切割磁感线产生总的感应电动势大小为E2=2BL v,感应电流大小I2=2I1,方向仍为逆时针即负方向;第三阶段:从de边离开磁场到bc边将离开磁场这段时间内,bc、af边一起切割磁感线产生总的感应电动势大小为E3=BL v,感应电流大小I3=I1,方向为顺时针即正方向;第四阶段:从bc边离开磁场到af边将离开磁场这段时间内,af边切割磁感线产生的感应电动势大小为E4=2BL v,感应电流大小I4=2I1,方向仍为顺时针即正方向.综上,感应电流随时间变化的图线如选项A图所示,故选A.3.(2023·宿迁期末)如图所示,倾斜放置的光滑平行足够长的金属导轨MN、PQ间静置一根质量为m的导体棒,阻值为R的电阻接在M、P间,其他电阻忽略不计,磁感应强度为B的匀强磁场垂直导轨平面向下.t=0时对导体棒施加一个沿导轨平面向上的力F,使得导体棒能够从静止开始向上做匀加速直线运动,则在导体棒向上运动的过程中,施加的力F、力F的功率P、产生的感应电流I、电阻R上产生的热量Q随时间变化的图像正确的是(A)A B C D解析:导体棒向上做匀加速运动,则F -B 2L 2at R =ma ,即F =B 2L 2a R t +ma ,故A 正确;力F 的功率P =F v =⎝ ⎛⎭⎪⎫B 2L 2a R t +ma at =B 2L 2a 2R t 2+ma 2t ,则P -t 图像为开口向上的抛物线,故B 错误;产生的感应电流I =BLat R ,则I -t 图像是过原点的直线,故C 错误;电阻R 上产生的热量Q =I 2Rt =B 2L 2a 2t 3R ,则 Q -t 图像一定不是过原点的直线,故D 错误.4.(2023·金陵中学)如图所示,平行金属导轨与水平面成θ角,导轨与固定电阻R 1和R 2相连,匀强磁场垂直穿过导轨平面.有一导体棒ab ,质量为m ,导体棒的电阻与固定电阻R 1和R 2的阻值均相等,与导轨之间的动摩擦因数为μ,导体棒ab 沿导轨向上滑动,当上滑的速度为v 时,受到安培力的大小为F .下列说法中错误的是( A )A .电阻R 1的电功率为 F v 3B .电阻R 2的电功率为 F v 6C .整个装置因摩擦而产生的热功率为μmg v cos θD .整个装置消耗的机械功率为 (F +μmg cos θ)v解析:设ab 长度为L ,磁感应强度为B ,电阻均为R ,电路中感应电动势为E =BL v ,R 1、R 2并联电阻大小为R ′=R ·R R +R =R 2,ab 中感应电流为I =E R +R ′,解得ab 所受安培力为F =2B 2L 2v 3R ,电阻R 1消耗的热功率为P 1=⎝ ⎛⎭⎪⎫I 22R =B 2L 2v 29R =16F v ,电阻R 2消耗的功率与R 1消耗的功率相等,故A 错误,B 正确;整个装置因摩擦而消耗的热功率为P 2=μmg cos θ·v =μmg v cos θ,故C 正确;整个装置消耗的机械功率为P 3=F v +P 2=(F +μmg cos θ)v ,故D 正确.5.(2023·南通适应性考试)如图所示,竖直向下的匀强磁场中水平放置两足够长的光滑平行金属导轨,导轨的左侧接有电容器,金属棒静止在导轨上,棒与导轨垂直,t =0时,棒受到水平向右的恒力F 作用,t =t 0时,撤去F ,则棒的速度v 、电容器所带的电荷量q 、棒中安培力的冲量I 、棒克服安培力做的功W 与时间t 的关系图像正确的是( D )A B C D解析:设某一时刻t ,根据牛顿第二定律有F -F 安=ma ,设该时刻电流大小为i ,则F 安=BiL ,F -BiL =ma ,在很短时间间隔内ΔQ =i ·Δt ,ΔQ =C ·ΔU ,ΔU =BL ·Δv ,联立可得i =BLC Δv Δt=BLCa ,结合前式可得F -B 2L 2Ca =ma ,可得a =F m +B 2L 2C ,v =at =F ·t m +B 2L 2C,可知t 0之前金属棒做匀加速运动,即v -t 图像为一倾斜直线.撤去力F 后感应电动势等于电容器两端电压,电容器不再充电,电流为零,开始做匀速运动,A 错误;由上面分析可知ΔQ Δt=i =BLCa ,t 0之前q -t 图像为倾斜直线,t 0之后电容器不充放电,电荷量不变,B 错误;安培力的冲量I =BiL ·t =B 2L 2Ca ·t ,加速度a 定值,可知I -t 图线为一倾斜直线,C 错误;棒克服安培力做的功W =F 安v ·t =B 2L 2Ca 2t 2,D 正确.6.(2023·扬州中学考前模拟)空间中存在如图所示的磁场,Ⅰ、Ⅱ区域的宽度均为2R ,磁感应强度均为B (Ⅰ区域垂直纸面向里,Ⅱ区域垂直纸面向外),半径为R 的圆形导线圈在外力作用下以速度v 匀速通过磁场区域,设任意时刻导线圈中电流为I (逆时针为正),导线圈所受安培力为F (向左为正),从导线圈刚进入Ⅰ区域开始将向右运动的位移记为x ,则下列图像正确的是( D )A B C D解析:当圆环在磁场Ⅰ区域向右运动过程中,设圆环切割磁感线的有效长度为l ,则有(R -x )2+⎝ ⎛⎭⎪⎫l 22=R 2 整理得l =2-(x -R )2+R 2,则圆环产生的感应电动势为E =Bl v ,感应电流为I =E R 阻=2B v -(x -R )2+R 2R 阻,可知电流与位移不成线性相关,B 错误;当圆环圆心运动到Ⅰ、Ⅱ区域的边界时,此时产生的感应电流大小为I ′=2E R 阻=4B v -(x -R )2+R 2R 阻,即x =3R 的电流大小为x =R 的电流的两倍,方向沿着顺时针方向,A 错误;通过分析可知,除了x =2R 、x =4R 、x =6R 三个特殊位置,电流为0,受力为0,在0<x <6R 区域内,圆环受力方向水平向左,若圆环在x =R 位置受力为F 0,则圆环在x =3R 处,由于电流变为2倍,圆环左右半圆均受力,因此圆环受力为4F 0,C 错误,D 正确.二、 非选择题7.(2023·盐城期末)如图所示,电阻不计的矩形导线圈abcd ,在ab 间接电阻为R 的均匀电阻丝甲,线圈放在方向垂直于线圈平面、磁感应强度为B 的匀强磁场中.现有电阻为12R 的金属棒PQ 刚好架在导线圈上,PQ 长度为L ,并以恒定速度v 从ad 边滑向bc 边.PQ 在滑动过程中与导线圈的接触良好.求:(1) PQ 产生的感应电动势E .答案:BL v解析:PQ 产生的感应电动势为E =BL v(2) 甲消耗电功率的最大值P max .答案:4B 2L 2v 29R解析:当金属棒滑上甲后,令甲左端电阻为R x ,则甲右端电阻为R -R x ,左右两端并联,则并联电阻为R 并=R x (R -R x )R x +R -R x=R x (R -R x )R 由于0≤R x ≤R ,可知0≤R 并≤R 4甲消耗电功率为P =⎝ ⎛⎭⎪⎪⎫E 12R +R 并2R 并=E 2R 24R 并+R 并+R 可知,当R 并=R 4时,甲消耗功率最大,则有P max =⎝ ⎛⎭⎪⎪⎫E 12R +14R 2·14R 结合上述解得P max =4B 2L 2v 29R(3) PQ 所受安培力的最小值F min .答案:4B 2L 2v 3R解析:根据上述可知,通过金属棒的电流 I =E12R +R 并金属棒所受安培力F =BIL解得F =B 2L 2v 12R +R 并可知,当R 并=R 4时,金属棒所受安培力最小F min =B 2L 2v 12R +14R=4B 2L 2v 3R8.(2023·海安中学模拟)如图甲所示,两根足够长的平行光滑金属导轨MN 、PQ 被固定在水平面上,导轨间距l =0.6 m ,两导轨的左端用导线连接电阻R 1及理想电压表V ,电阻为r =2 Ω的金属棒垂直于导轨静止在AB 处;右端用导线连接电阻R 2,已知 R 1=2 Ω,R 2=1 Ω,导轨及导线电阻均不计.在矩形区域CDFE 内有竖直向上的磁场,CE =0.2 m ,磁感应强度随时间的变化规律如图乙所示.开始时电压表有示数,当电压表示数变为零后,对金属棒施加一水平向右的恒力F,使金属棒刚进入磁场区域时电压表的示数又变为原来的值,金属棒在磁场区域内运动的过程中电压表的示数始终保持不变.求:甲乙(1) t=0.1 s时电压表的示数.答案:0.3V解析:设磁场宽度为d=CE,在0~0.2 s的时间内,有E=ΔΦΔt=ΔBΔtld=0.6 V此时,R1与金属棒并联后再与R2串联R=R并+R2=1 Ω+1 Ω=2 ΩU=ER R并=0.3 V(2) 恒力F的大小.答案:0.27 N解析:金属棒进入磁场后,R1与R2并联后再与r串联,有I′=UR1+UR2=0.45 AF A=BI′l=1×0.45×0.6 N=0.27 N由于金属棒进入磁场后电压表的示数始终不变,所以金属棒做匀速运动,有F=F A=0.27 N(3) 从t=0时刻到金属棒运动出磁场的过程中整个电路产生的热量.答案:0.09 J解析:在0~0.2 s的时间内有Q=E2R t=0.036 J金属棒进入磁场后,有R′=R1R2R1+R2+r=83ΩE′=I′R′=1.2 V E′=Bl v,得v=2 m/st′=dv=0.22s=0.1 sQ′=E′I′t′=0.054 JQ总=Q+Q′=0.036 J+0.054 J=0.09 J补不足、提能力,老师可增加训练:《抓分题·基础天天练》《一年好卷》。

沪教牛津版七年级英语上册UNIT 6综合检测卷含答案

沪教牛津版七年级英语上册UNIT 6综合检测卷含答案

沪教牛津版七年级英语上册UNIT 6综合检测卷第一部分(听力共30分)Ⅰ. 听对话,选答案(共15小题,计20分)第一节: 听下面10段对话,每段对话后有一个问题,读两遍。

请根据每段对话的内容和后面的问题,从所给的三个选项中选出最恰当的一项。

(共10小题,计10分)1. A. By bike. B. By bus.C. On foot.2. A. Once a week. B. Twice a week.C. Twice a day.3. A. He will go swimming.B. He will go climbing.C. He will go traveling.4. A. Black. B. Red.C. Yellow.5. A. Her father. B. Her mother.C. Her sister.6. A. A pilot. B. A teacher.C. A doctor.7. A. V olleyball. B. Badminton.C. Baseball.8. A. Windy. B. Snowy.C. Sunny.9. A. In a bank.B. In a restaurant.C. In a shop.10. A. At 9: 30. B. At 9: 00.C. At 8: 30.第二节: 听下面两段对话,每段对话后有几道小题。

请根据每段对话的内容和所给的问题,从三个选项中选出最恰当的一项。

每段对话读两遍。

(共5小题,计10分)听第11段对话,回答第11、12小题。

11. Who does the woman buy a toy for?A. Herself.B. Her son.C. Her friend.12. What does the woman buy at last?A. The piano.B. A model plane.C. A model car.听第12段对话,回答第13至15小题。

2024年四川宜宾中考物理试题及答案

2024年四川宜宾中考物理试题及答案

2024年四川宜宾中考物理试题及答案注意事项:1.答题前,务必将自己的姓名、座位号、准考证号填写在答题卡指定的位置并将答题卡背面座位号对应标号涂黑。

2.答选择题时,务必使用2B铅笔将答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦擦干净后,再选涂其它答案标号。

3.答非选择题时,务必使用0.5毫米黑色签字笔,将答案书写在答题卡规定的位置上。

4.所有题目必须在答题卡规定的位置上作答,在试卷上答题无效。

一、选择题:本题共14小题,每小题3分,共42分。

在每小题给出的四个选项中,第1~10题只有一项符合题目要求;第11~14题有多项符合题目要求,全部选对的得3分,选对但不全的得2分,有错选或不选的得0分。

1.“五四”青年节到来之际,教室里传来《光荣啊,中国共青团》的歌声,小明一听便知道是小英在唱歌。

他能确定是小英,主要是根据声音的( )A. 音调B. 响度C. 音色D. 频率2. 如图所示的测量工具中,属于测量力的是()A. B.C. D.3. 下列现象中属于蒸发的是( )A. 窗玻璃上出现冰花B. 铁块变成铁水C. 从冰箱拿出的葡萄“冒汗”D. 擦在皮肤上的酒精“消失”4. 下列描述中属于扩散现象的是( )A. 桂花花香四溢B. 雪花漫天飘舞C. 灰尘空中飞扬D. 江面雾气弥漫5. 如图是2024年4月9日发生日全食的情景。

产生这一现象的原因是( )A. 光的反射B. 光的色散C. 光的折射D. 光的直线传播6. 学校组织了丰富多彩的体育活动,下列运动中涉及物理知识的说法正确的是( )A. 小强踢足球时,用脚将球踢出,说明一个物体就能产生力B. 小英掷铅球时,铅球飞出去,说明力主要改变了物体的形状C. 小明长跑时,冲过终点不能立即停下来,是由于小明具有惯性D. 小华立定跳远时,他所受重力与他对地面的压力是一对平衡力7. 关于安全用电,下列说法正确的是( )A. 用湿手触摸家庭电路开关B. 多个大功率用电器同时工作时,共用一个插座C. 使用试电笔时,手指按住笔尾金属帽,用笔尖接触被测导线D. 将冰箱的三脚插头中较长插脚去掉后,可直接插入两孔插座中使用8. )A. 速度增大B. 动能转化重力势能C. 机械能增大D. 重力势能减小9. 安检时,当金属探测仪靠近金属物体,会产生感应电流,发出警示信号。

“PEP”2024年11版小学6年级第12次英语第1单元真题(含答案)

“PEP”2024年11版小学6年级第12次英语第1单元真题(含答案)

“PEP”2024年11版小学6年级英语第1单元真题(含答案)考试时间:80分钟(总分:140)A卷考试人:_________题号一二三四五总分得分一、综合题(共计100题)1、听力题:The __________ can provide valuable geological information.2、听力题:The chemical formula for ethanol is __________.3、How many wheels does a bicycle have?A. OneB. TwoC. ThreeD. Four4、填空题:The ______ (蜜蜂) plays a critical role in pollination.5、填空题:The _______ (猴子) is clever and agile.6、填空题:I enjoy ______ during my free time.7、填空题:The snake can be found in _________ (森林) and deserts.8、听力题:They are ___ a picture. (taking)9、听力题:An acid can turn litmus paper _____ (red).I want to _______ my ideas in art class.11、听力题:A mixture of two or more metals is called _______.12、填空题:The goldfish swims to greet me when I arrive with ______ (食物).13、听力题:My cousin is a ______. She enjoys baking.14、What do you use to eat soup?A. ForkB. KnifeC. SpoonD. Plate答案:C15、填空题:The rabbit loves to hop _______ (跳跃).16、填空题:The ________ was a critical battle in the history of the nation.17、听力题:The _______ changes color in the fall.18、填空题:Did you hear the _____ (小狗) yapping excitedly?19、What do you call an animal that eats both plants and other animals?A. HerbivoreB. CarnivoreC. OmnivoreD. Insectivore答案:C20、听力题:The _______ of a sound can be influenced by the environment.21、What is the largest mammal in the ocean?A. SharkB. DolphinC. WhaleD. OctopusMy dad enjoys _______ (动词) in his spare time. 他也喜欢 _______ (名词).23、填空题:My friend's family has a _______ (动物). 它的名字是 _______ (名字).24、What is the name of the instrument played with strings?A. FluteB. GuitarC. TrumpetD. Drum答案: B25、听力题:He loves to play ________.26、填空题:My dad works in a ______ (办公室).27、填空题:I can ______ (利用) my time wisely.28、听力题:The density of a substance is its mass per _____.29、听力题:The chemical formula for cetyl alcohol is ______.30、听力题:My favorite sport is _______ (basketball).31、填空题:The __________ (历史的旅程) is ongoing.32、听力题:A ______ is a type of experiment designed to test a theory.33、填空题:The puppy barks when it sees a _________. (陌生人)34、听力题:A _______ is a solution that contains less solute than it can hold.35、填空题:I like to play with my _______ (我喜欢和我的_______玩).We have a ______ (快乐的) family tradition for special occasions.37、填空题:My cousin is a talented __________ (运动员) in basketball.38、听力题:She is _______ (sharing) her snacks with friends.39、听力题:Roots absorb _______ from the soil.40、选择题:What is the name of the famous monument in Washington, D. C. ?A. Statue of LibertyB. Lincoln MemorialC. Washington MonumentD. Eiffel Tower41、选择题:How many days are there in a week?A. 5B. 6C. 7D. 842、听力题:We draw with _____ (粉笔) on the sidewalk.43、填空题:The __________ is where tectonic plates meet. (断层)44、听力题:A gas released during fermentation is ______.45、填空题:A cat's purring is often a sign of ________________ (放松).46、听力题:I _____ (love/hate) homework.47、听力题:The ______ is the center of our solar system.48、填空题:The __________ in spring brings new growth to the garden. (雨水)49、What is the first letter of the English alphabet?A. AB. BC. CD. D答案: A50、What is the largest species of shark?A. Great WhiteB. HammerheadC. Whale SharkD. Tiger Shark答案:C. Whale Shark51、What color is a banana?A. RedB. YellowC. GreenD. Blue52、听力题:You can find _______ in the desert.53、填空题:The manatee is also called a _______ (海牛).54、听力题:The process of ______ can cause landslides and avalanches.55、填空题:I spotted a _______ (小松鼠) climbing a tree.56、What do we call an animal that eats both plants and animals?A. HerbivoreB. CarnivoreC. OmnivoreD. Insectivore答案: C57、听力题:A homogeneous mixture has a uniform ______ throughout.58、听力题:Hydrogen is the lightest ______.59、What is 100 + 200?A. 300B. 400C. 500D. 600答案:A60、What do we call the time of day when the sun sets?A. NoonB. MorningC. EveningD. Midnight答案:C61、What do we call the first month of the year?A. FebruaryB. MarchC. AprilD. January答案:D62、填空题:My sister has a beautiful ______ (手链). She wears it every ______ (天).63、听力题:A _______ is a reaction that occurs in the presence of an acid or base.64、听力题:I see a __ in the sky. (cloud)65、What do you call the imaginary line that divides the Earth into Northern and Southern Hemispheres?A. EquatorB. Prime MeridianC. Tropic of CancerD. Tropic of Capricorn66、填空题:After school, I do my _______ (作业) and then go outside to _______ (活动). Sometimes, I help my _______ (家庭成员) with _______ (任务).67、填空题:The weather is __________ today; we should go to the beach! (完美的)68、What do we call the study of insects?A. EntomologyB. BotanyC. ZoologyD. Ecology答案:A69、What food do we get from cows?A. EggsB. MilkC. CheeseD. All of the above70、What do bees make?A. ButterB. HoneyC. JamD. Syrup答案:B. Honey71、填空题:The ______ (小鱼) swims gracefully through the coral reef.72、What is the freezing point of water in Celsius?A. 0 degreesB. 32 degreesC. 100 degreesD. -10 degrees答案:A73、What is the capital of Malaysia?A. Kuala LumpurB. BangkokC. JakartaD. Manila74、听力题:The flowers are ________ in the vase.75、填空题:I want to _______ (参加) a theater club.76、听力题:A chemical reaction may produce a gas, a liquid, or a ______.My mom is a ______ (nurse).78、听力题:I enjoy ________ in the summer.79、填空题:The _______ (The Arab Spring) led to protests across the Middle East.80、填空题:I enjoy _______ (参加) charity events.81、填空题:I like reading books about _______ (我喜欢阅读有关_______的书).82、听力题:A reaction that produces a gas and a solid is called a ______ reaction.83、填空题:My cat catches _________ (老鼠).84、填空题:The _________ (玩具) shop is full of _________ (颜色鲜艳的) toys.85、填空题:My cousin enjoys __________ (研究) different topics.86、What do we call a young peacock?A. ChickB. PeafowlC. PeachickD. Calf答案:C. Peachick87、填空题:I have a new ________ (玩具名称) that spins.88、听力题:The dog is ___ a stick. (fetching)89、填空题:I often take my __________ (玩具名) to the __________ (地方).90、填空题:She is a _____ (记者) who reports on local news.A mixture that contains different types of matter is called a _______ mixture.92、听力题:The rain makes the grass _____ (wet/dry).93、填空题:My rabbit hops around the ______ (房间).94、听力题:The capital city of Barbados is __________.95、Which of these is a fruit that grows on trees?A. CarrotB. AppleC. PotatoD. Lettuce96、填空题:Gardening can provide a sense of accomplishment and ______.(园艺可以带来成就感和快乐。

昆明“PEP”2024年11版小学六年级上册第1次英语第六单元真题(含答案)

昆明“PEP”2024年11版小学六年级上册第1次英语第六单元真题(含答案)

昆明“PEP”2024年11版小学六年级上册英语第六单元真题(含答案)考试时间:80分钟(总分:120)B卷考试人:_________题号一二三四五总分得分一、综合题(共计100题)1、听力题:I like to eat _____ for lunch. (sandwiches)2、What do we call the natural habitat of an organism?A. EcosystemB. EnvironmentC. NicheD. Community答案:C3、What is the main purpose of a pencil?A. EraseB. DrawC. WriteD. Cut答案:C4、填空题:The __________ (历史的启示) guide our actions.5、听力题:The candy is ___ (sweet).6、选择题:What is the main language spoken in the United States?A. FrenchB. SpanishC. EnglishD. Chinese7、听力题:The ________ (moon) shines at night.8、What do we celebrate on December 25th?A. HalloweenB. ThanksgivingC. ChristmasD. New Year答案:C9、填空题:I can ______ (保持) a detailed journal.10、What do you call a person who plays a musical instrument?A. PainterB. DancerC. MusicianD. Singer答案: C11、What do we call a person who repairs cars?A. AccountantB. MechanicC. ArchitectD. Chef答案:B12、What do you call the sweet food made from sugar and gelatin?A. CandyB. GumC. MarshmallowD. Taffy答案: C13、听力题:Flowers need ______ to grow.14、What is the capital of Malaysia?A. Kuala LumpurB. JakartaC. ManilaD. Bangkok15、What do you call a group of wolves?A. PackB. FlockC. HerdD. School答案:A16、填空题:__________ (酶) are biological catalysts that speed up chemical reactions in living organisms.17、听力题:I can _____ to the top of the slide. (climb)18、听力题:I like to ________ (participate) in activities.19、听力题:The __________ is important for balancing ecosystems.20、听力题:In a chemical reaction, the total energy before and after the reaction must remain ____.21、听力题:Metals are usually _______ conductors of electricity.22、填空题:I like to listen to ______ (音乐) while I paint or draw.23、填空题:I enjoy going to the ________ (农场) to see animals.24、填空题:I love to explore ________ (城市公园) during outings.25、听录音排序。

上海头桥中学初中英语九年级全一册Starter Unit 6测试(含答案解析)

上海头桥中学初中英语九年级全一册Starter Unit 6测试(含答案解析)

考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.If you and your friend want a wrapped roast beef, a wrapped style chicken and two bottled drinks, you should pay _______.A.¥60 B.¥63 C.¥662.Jim's parents always encourage him ________out his opinions.A.speak B.speaking C.to speak D.will speak3.—How dangerous!—Yeah.The bus hit the car just now.A.nearly B.normally C.clearly D.mostly4.---Excuse me, sir. Are you sure the umbrella in your hand belongs to you?---Oh, sorry, I took it ______. Mine is over there under the chair.A.at once B.on time C.by mistake D.in all5.To people’s great surprise,the old building still after the strong earthquake.A.refused B.remained C.required D.reviewed6.--- Some schools have used smart uniforms. I wonder .--- They can tell parents where their children are.A.who invented them B.what they are used for C.when students wear them 7.The number of the people using Huawei ________is getting larger and larger. A.cultures B.customers C.products D.histories 8.—Why did you leave that position?—I ______a better position in another factory.A.offer B.offered C.am offered D.was offered 9.__________ students in this school is about 2,000. And __________ students go to school by bike.A.The number of;the number ofB.A number of;a number ofC.A number of;the number ofD.The number of;a number of10.─He always appears to _________.─That's because he's really knowledgeable and experienced.A.have a point B.pull together C.take place D.make a choice 11.—Thank you very much for what you have done for me.—_________.A.Wait for a moment B.Good idea C.My pleasure D.Me too12.________ may have a chance (机会) to be successful if he tries his best.But ___ doesn't believe it.A.None,somebody B.Nobody,everybody C.Somebody,anybody D.Everybody,somebody13.—Don't worry. I will look after your baby ________.—Thanks a lot.A.careful enough B.enough carefulC.carefully enough D.enough carefully14.My teacher often encourages me ________ more English books and magazines. A.read B.reads C.to read D.reading 15.—How is your project?—________, so good.A.As long B.So far C.So much D.As for16.We each _____ strong points and each of us on the other hand _____weak points. A.have, have B.has, haveC.has, has D.have, has17.Though lemon tastes __________, I still like it.A.crispy B.salty C.sour18.—What do you think of the dish?—It is sweet and sour, but isn’t __________.A.crisp enough B.crispy enough C.enough crisp D.enough crispy 19.The Olympics _________ every four years. And the 29th Olympics _________ in Beijing in 2008.A.are taken place; take place B.take place; was heldC.hold; will be taken place D.are held; take place20.The popularity of basketball _________ around the world recently.A.rose B.has risen C.has raised D.raised 21.— Wow, the fruit so bad!—B ut I’m sure you'll like it after trying it.A.tasted B.smelled C.tastes D.smells 22.Mary has________ a website to sell her bags online.A.set in B.set down C.set up D.set off23.The workers were made_________from morning to night in the past. A.worked B.to work C.work D.working 24.Wow, the meat on the plate produces a nice smell. It must ________ very delicious. A.sound B.taste C.feel D.look 25.—Trees can stop the wind ________ the earth away.—So it's good for us to plant more trees.A.blows B.blowing C.to blow D.blew 26.________the end, they found a supermarket________ the end of the road A.At; in B.In; at C.In; by D.By; at【参考答案】一、选择题1.B2.C3.A4.C5.B6.B7.C8.D9.D10.A11.C12.D13.C14.C15.B16.D17.C18.B19.B20.B21.D22.C23.B24.B25.B26.B【参考解析】一、选择题1.B解析:B【详解】题意:如果你和你的朋友想要一份打包的烤牛肉,一份打包的鸡肉和两瓶饮料,你应该支付__________元。

唐作藩《音韵学教程》练习答案[教学]

唐作藩《音韵学教程》练习答案[教学]

唐作藩《音韵学教程》练习答案[教学] 唐作藩《音韵学教程》练习练习一一、用国际音标注出下列各组字的普通话读音,并分析出它们的声母、韵母(韵头、韵腹、韵尾)和声调:1、学好汉语声韵调系统汉字注音声母韵母韵头韵腹韵尾声调学ü[y] ê[] xue2 x[] 2/35 好 hao3 h[x] a[] o[u] 3/214 汉 han4 h[x]a[a] n[n] 4/51 语ü[y] yu3 0[0] 3/214 声 sheng1 sh[] e[] 1/55 ng[] 韵ü[y] yun4 0[0] n[n] 4/51 调 diao4 d[t] i[i] a[] o[u] 4/51 系 xi4 x[] i[i] 4/51 统 tong3 o[u] 3/214 ng[] t[t]2、海阔凭鱼跃,天高任鸟飞汉字注音声母韵母韵头韵腹韵尾声调海 hai3 h[x] a[a] i[i] 3/214 阔 kuo4 u[u] o[o] 4/51 k[k]凭 ping2 i[i] 2/35 ng[] p[p]鱼ü[y] yu2 0[0] 2/35 跃ü[y] ê[] yue4 0[0] 4/51 天 tian1 i[i] a[]n[n] 1/55 t[t]高 gao1 g[k] a[] o[u] 1/55 任 ren4 r[] e[] n[n] 4/51 鸟 niao3 n[n]i[i] a[] o[u] 3/214 飞 fei1 f[f] e[e] i[i] 1/553、自己的姓名汉字注音声母韵母韵头韵腹韵尾声调王 wang2 0[0] a[] 2/35 ng[] 宝 bao3 b[p] a[] o[] 3/214 刚 gang1 g[k] a[] 1/55 ng[]附:现代汉语声、韵、调及常用国际音标表。

一、现代汉语声母表塞音塞擦音擦音鼻音边音发音方法发音清音清音清音浊音浊音浊音部位不送气送气不送气送气双唇音 b[p] m[m] p[p]唇齿音 f[f]舌尖前音 z[ts] s[s] c[ts]舌尖中音 d[t] n[n] l[l] t[t]舌尖后音 zh[t] sh[] r[] ch[t]舌面音 j[t] x[] q[t]舌根音 g[k] h[x] k[k]零声母 0[0]二、现代汉语韵母表开口呼齐口呼合口呼撮口呼i[i] u[u] ü[y] -i[] []a[] ia[i] ua[u] 单o[o] uo[uo] 韵e[] 母ê[] ie[i] üe[y]er[]uai[uai] ai[ai] 复uei[uei] ei[ei]韵 ao[u] iao[iu]母 iou[iou] ou[ou]an[an] üan[yn] ian[in] uan[un] 鼻en[n] in[in] ün[yn] uen[un] 韵ang[] iang[i] uang[u]eng[] ing[i] ueng[u] 母ong[u] iong[y]三、现代汉语声调表及古今调类比较表今调类阴平阳平上声去声今调类古调类清浊调值调值古清浊调类 55 35 214 51平声清声母夫汤妻诗清声母平声浊声母次浊门难牛油次浊浊声母全浊符糖齐时全浊上声清声母府短酒纸清声母上声浊声母次浊米老藕有次浊浊声母全浊妇稻旱似全浊去声清声母富对去试清声母去声浊声母次浊慢浪岸用次浊浊声母全浊附盗汗寺全浊入声清声母哭桌出瞎革国博节谷铁北百客阔必式清声母入声浊声母次浊木绿日叶次浊浊声母全浊白敌学直全浊塞音:阻碍部位完全闭塞,然后突然打开,使气流骤然冲出。

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南开区11-12学年度第一学期六年级英语学习水平测试参考答案
Unit One
Ⅰ. 1.You mustn't spit on the ground. 2.You shouldn't litter the banana skin on the ground.
3.You must keep off the grass.
4.Don't play on the street. It's dangerous.
5.You should keep your desk clean. (1.B 2.D 3.A 4.F 5.C)
Ⅱ. 1.There are eight classes in our grade. 2.This room is small but very nice.
3.The school is not far from the farm.
4.I am tall, so I want a long dress.
5.You must wait for the green light now. (1.A.2.C 3.A 4.C 5.B)
Ⅲ. 1.carefully 2.Reading 3.actively 4.them 5.is making 6.shouldn't 7.good te
9.help 10.for
Ⅳ. 1.C 2.B 3.D 4.A 5.D 6.A 7.C 8.A 9.B 10.D
Ⅴ. 1.C 2.A 3.D 4.A 5.C 6.C 7.A 8.C 9.B 10.D
Ⅵ. 1.A 2.B 3.C 4.B 5.C
Unit Two
Ⅰ. 1.I get up at six fifteen every morning.
2.I go to school at six forty-five.
3.I do morning exercises at ten to ten.
4.I play games with my classmates at three twenty.
5.I go to bed at about half past ten. (1.D 2.E 3.C 4.F 5.B)
Ⅱ. 1.It's a quarter to seven. It's time for dinner. 2.I like eating vegetables.
3.I have dinner at home with my parents.
4.I walk to school every day.
5.Mr Lee drinks some coffee every day. (1.C 2.C 3.A 4.B 5.B)
Ⅲ. 1.are singing 2.scientist 3.watches 4.shopping 5.children 6.meals 7.early 8.seldom
9.with 10.from
Ⅳ. 1.A 2.D 3.B 4.C 5.D 6.A 7.C 8.C 9.A 10.B
Ⅴ. 1.B 2.D 3.C 4.B 5.C 6.C 7.B 8.A 9.D 10.C
Ⅵ. 1.has 2.talk 3.send 4.is 5.goes 6.works 7.eats 8.sleeps 9.tells 10.loves
Ⅶ.1.D 2.B 3.A 4.B 5.C
Unit Three
Ⅰ. 1.My name is Meimei. I like reading very much.
2.Xiao Feng is a basketball player of our school team.
3.Li Na is good at singing. She often sings English songs for us.
4.The girl dancing over there is my good friend Liu Li.
5.My younger sister likes playing football. (1.C 2.E 3.B 4.A 5.D)
Ⅱ. 1.What colour are the leaves getting when spring comes? 2.What colour is our national flag?
3.What colour of the grapes are?
4.What’s your hobby?
5.What does your father often do on Sundays? (1.C 2.F 3.H 4.E 5.B)
Ⅲ. 1.hobbies 2.interesting 3.houses 4.first 5.Cooking 6.how 7.eating 8.playing 9.one
10.farming
Ⅳ. 1.D 2.D 3.A 4.A 5.B 6.A 7.B 8.C 9.D 10.B
Ⅴ. 1.A 2.D 3.C 4.B 5.D
Ⅵ.1-3.jumping, does, doesn't 4-7.doing, flying, kite, do 8-12.What, doing, playing, tennis, hobby/favourite 13-16.playing, volleyball, Yes, players
17-20.Who, What's, doing, Climbing
Revision One
Ⅰ. 1.Xiao Ming likes fishing very much. 2.Kate is playing volleyball.
3.The boy likes long jump, but he’s not good at it.
4.Wang Hai's hobby is climbing.
5.David is good at roller skating. (1.E 2.B 3.D 4.A 5.C)
Ⅱ. 1.Which one is your school rule? 2.Which one is your home rule?
3.Which one is the traffic rule?
4.Which one is your hobby?
5.Which one shouldn't we do? (1.C 2.C 3.B 4.B 5.A)
Ⅲ. Ben is a student. His school starts at 9:00 in the morning, so he can get up at about 7:45. He has his breakfast at 8:00. Ben meets his classmate Jack at 8:30 and then they go to school together. He has his lunch at school at 11:50. After lunch he plays games with his friends at the school. At 1:30 p.m. he has art and music classes. School is over at 3:30. He usually gets home at about 4:00 p.m. Ben has supper with his parents at 6:30. In the evening he watches TV or meets friends. He goes to bed at 10:00 o'clock. (Keys 略)
Ⅳ. (A)1.studies 2.is running 3.enjoys, planting 4.Swimming 5.goes, plays
(B)1.My, his 2.are, pictures 3.animals’, children’s 4.has, dictionaries 5.first, Chinese
(C)1.is/looks 2.for 3.shouldn't 4.good 5.No
Ⅴ. 1.B 2.C 3.C 4.A 5.D 6.B 7.D 8.B 9.D 10.A
Ⅵ. 1.B 2.C 3.D 4.A 5.B 6.C 7.A 8.B 9.C 10.B
Ⅶ. 1.C 2.A 3.D 4.E 5.B
Ⅷ. 1-2.There, are 3-4.from, Australia 5-6.school, things 7-8.very, much 9-10.my, hobby
Ⅸ. (A)1.D 2.C 3.B 4.A 5.B (B)1.B 2.D 3.A 4.C 5.C
Ⅹ. 1.policeman, red 2.eating, not 3.driver, mustn't 4.many, playing 5.stamps, them
6.tomato, plants
7.sports, skating
8.rules, No
9.ten, bed , Canada。

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