暑期作业6
小学上册第六次英语第6单元暑期作业
小学上册英语第6单元暑期作业英语试题一、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 __________ is known for its unique ecosystems.2.This ________ (玩具) encourages learning.3.Horses eat _______ (草).4.n Conquest changed the course of ________ (英国历史). The Nort5.The sun is ______ behind the clouds. (peeking)6.Plants help keep the air _______.7.Which of these is a holiday?A. MondayB. ChristmasC. JanuaryD. Summer8.The __________ is a region known for its volcanic activity.9.The _____ (mountain/river) is high.10.My grandmother has a __________ house. (温暖的)11.I share my lunch with my __________. (朋友)12.The ant has a strong _______ (合作)能力.13. A sound wave can travel through a vacuum, but ______ cannot.14.What is the name of the ocean between Africa and Australia?A. AtlanticB. PacificC. IndianD. ArcticC15.The main gas in helium balloons is ______.16.The __________ is heavy with clouds. (天空)17.I saw a ___ (小蛇) sunbathing on the rock.18.Which device do we use to call someone?A. PhoneB. ComputerC. TelevisionD. RadioA19.What is the term for a baby horse?A. CalfB. FoalC. KidD. LambB Foal20.The children are ______ (happy) at the zoo.21.What is the capital of Belize?A. BelmopanB. Belize CityC. Orange WalkD. San IgnacioA Belmopan22.What do you call a story that is not true?A. FactB. FictionC. HistoryD. Biography23.What do we call the animal that hops and carries its baby in a pouch?A. KangarooB. RabbitC. SquirrelD. KoalaA24.The chemical formula for ammonium sulfide is ______.25.The capital of Togo is ________ (洛美).26. A ______ (刺猬) is small and covered in spikes.27.My ________ (玩具名称) has a special place in my heart.28.My family is going to _______ (travel/stay) at home this weekend.29.The snake has smooth _______ (蛇的皮肤光滑_______).30.Electric forces can attract or repel charged ______.31.Elements in the same period have the same number of ______.32.What do we call the study of living things?A. BiologyB. ChemistryC. PhysicsD. Geography33.The ________ is the natural home of many species.34.The sky is _______ (晴朗的).35.What is the name of the famous bridge in San Francisco?A. Brooklyn BridgeB. Golden Gate BridgeC. Tower BridgeD. Sydney Harbour BridgeB36.The capital of Niger is ________ (尼亚美).37.The _____ (climbing) rose grows on trellises.38.My friend has a pet ______ (兔子) that is very fluffy.39.What do we call the time when the sun rises?A. SunsetB. MidnightC. DawnD. NoonC Dawn40.What do we call the time when we celebrate the harvest?A. ThanksgivingB. Winter SolsticeC. Summer SolsticeD. Spring Equinox41. A _____ is a natural elevation of the Earth's surface.42. A force can change the motion of an ______.43.I like to play ______ (video games) on weekends.44.The cat loves to chase its _____ shadow.45.I like to _____ with my friends. (hang out)46.The ancient Egyptians had a rich tradition of ________ (艺术).47.What do we call the large body of fresh water found in the middle of a continent?A. OceanB. SeaC. LakeD. RiverC Lake48.What is the opposite of "young"?A. OldB. AncientC. RecentD. New49.The country known for its lush greenery is ________ (以郁郁葱葱闻名的国家是________).50.What is the main ingredient in hummus?A. ChickpeasB. BeansC. LentilsD. Peas51.Sodium chloride is commonly known as _____.52.I enjoy spending time with my ______.53.What is the result of 3 x 3?A. 6B. 7C. 9D. 10C54.eonic Wars reshaped the map of _____. The Neol55.I want to _____ (fly/ride) a kite.56.The __________ (历史的回顾) offers perspective on current events.57.The ______ (植物的多样性) is celebrated in many cultures.58.My favorite toy is a ________ that makes noise.59.What is the term for a young female horse?A. FillyB. ColtC. FoalD. MareA60. A galaxy is a collection of ______ and other matter.61.The ______ can camouflage itself.62.The _______ of an object can be tested using a calibrated scale.63.My ___ (小仓鼠) loves to explore its cage.64.What do we call the outermost layer of the Earth?A. MantleB. CrustC. CoreD. Lithosphere65.The boiling point of water is higher at ______ altitudes.66.The turtle moves very _______ (慢) but is very wise.67.What do we call a person who is trained to help sick people?A. NurseB. DoctorC. ParamedicD. All of the above68.Carbon dioxide is produced during ______ respiration.69.My favorite _____ is a colorful butterfly.70.My ________ (玩具名称) is a great way to express emotions.71.The cake is very ___. (tasty)72. A _______ can be a wonderful addition to your home.73.How many continents are in the world?A. SixB. SevenC. EightD. NineB74.How do you say "goodbye" in Russian?A. DasvidaniyaB. AdiósC. SayonaraD. Arrivederci75.What is the main function of the kidneys?A. To pump bloodB. To filter wasteC. To digest foodD. To produce hormonesB76.She is a _____ (运动员) and plays basketball.77.I can ______ (用) a computer to play games.78.Turtles can withdraw into their ______ (壳).79.My friend is very __________ (具有同情心).80.The ____ is a favorite among children and loves to play in the grass.81.The __________ (新兴城市) is rapidly growing.82.The first person to swim the English Channel was _______. (马修·韦本)83.The ________ (城市规划) helps organize urban spaces.84.The __________ is a famous national park.85.I want to be a ________ (科学家) when I grow up.86.The ______ (绿化) of an area can combat pollution.87. A mixture of oil and water is an example of a ______ mixture.88.The rabbit eats _______ (兔子吃_______).89.What type of animal is a frog?A. MammalB. BirdC. ReptileD. AmphibianD90.I enjoy attending ______ (音乐会) with my friends. The energy is always exciting.91.The kitten is _______ (purring) softly.92. A __________ is an area with many trees and wildlife.93.The __________ was a significant period of change in the history of Europe. (文艺复兴)94. A _____ (植物知识分享) can enrich community gardening efforts.95.What is the main component of Saturn's rings?A. IceB. RockC. DustD. Gas96.I like to _______ (explore) new places.97.The rain is ___ (falling/rising).98. A molecule of methane contains one carbon and four ______ atoms.99.The chemical symbol for thallium is ______.100.The monkey is ________ in the zoo.。
四年级英语下学期暑假作业6
四年级英语下学期暑假作业6一．1. Listen to the sentences, and fill in the blanks (听句子填空). (3分×5)1. I’m _____ of my painting.2. I want to have a _____ this summer.3. My friend likes _____ class very much.4. I don’t like to eat lunch in the _____.5. I will go to Guangdong on _____.听力附件：tingli6-12. Listen to the sentences, and look at the picture. Choose T for true or F for false. (听句子，判断图片是否相符, 相符的在相应的题的下面括号内标出“T” , 不相符的标出“F”). (3分×5)1. 2. 3. 4. 5.( ) ( ) ( ) ( ) ( )听力附件：tingli6-2二．Look at the following pictures and fill in the blanks(看图填空). (2分×5)1. He is r .2. She is d .3. He is p .4. Beibei is s .5. He is s .三．Choose the best answer(选择最佳答案).(3分×8)( ) 1. I have twelve .A. booksB. note bookC. pen( ) 2. A: What’s you number?B: .A. I’m number two.B. I’m in class two.C. I’m two.( ) 3. A: What’s four five?B: Nine.A. toB. andC. in( ) 4. I have pen.A. oneB. twoC. three( ) 5. A: What’s time is it?B: .A. I’m eight.B. It’s is eight o’clock.C. I’m number eight.( ) 6.What class are you ?A. atB. toC. in( ) 7. A: W hat is your sister’s name?B: name is Mary.A. HerB. MyC. She( ) 8. A: Who’s man over there?B: He’s my father.A. thisB. thatC. those四. Match the following (配对). (2分×5)( ) 1. Nice to meet you. A. I’m in class two.( ) 2. Wha t clas s are you in? B. I’m fine. Thank you. And you?( ) 3. What’s your number? C. Yes, she is.( ) 4. How are you? D. I’m number fourteen.( ) 5. Is she a student? E. Nice to meet you, too.五．True or False. Choose T for true or F for false. (判断句子正误,正确的写T，错误的写F). (4分×5)Miss Lin is a new teacher. She is thin. She likes lemons very much. She has some good friends: Nancy, Mike, Lily, and Wang Dong. They’re her students. Nancy has blue eyes and yellow hair. Mike is tall and thin. Lily likes oranges. Miss Lin likes oranges, too. And Wang Dong is a Chinese boy, he likes watermelons.( ) 1. Miss Lin likes lemons.( ) 2. Wang Dong is an English student.( ) 3. Miss Lin is a new student. She is thin.( ) 4. Wang Dong likes oranges, too.( ) 5. Mike is a short boy. He is thin.六．Look and write(看一看，写一写). (6分)Story ——A Girl and the Prince(女孩和王子)Mary 和王子最后怎么样了？我们一起去看看吧！视频附件：shipin6-11. Mary is a nice girl, and we should be _____ to others.2. She is always kind to everyone and helps the prince find the _____ store.参考答案一．1.proud trip Chinese canteen Monday 2.TFFFT二．reading dancing painting swimming singing三．1.A 2.A 3.B 4.A 5.B 6.C 7.A 8.B四．1.E 2.A 3.D 4.B 5.C五．1.T 1.F 3.F 4.F 5.F六．1. kind 2. shoe。
小学上册第11次英语第6单元暑期作业(有答案)
小学上册英语第6单元暑期作业(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.The goldfinch's song is pleasant to ______ (听).2. A frog's legs help it swim and ______ (跳).3.I love playing with my ________ (玩具车) on the floor.4.My cousin is always . (我的表兄弟/表姐妹总是。
)5.The process of separating components of a mixture using a filter is called _______.6.The ____ has sharp claws and is very agile.7.He likes to play _______.8.What do you call a young female chimpanzee?A. InfantB. PupC. CubD. Kit答案: A9.The ice cream truck is ______ (coming) down the street.10.The wind blows through the ______ (树叶). It sounds very ______ (宁静).11. A supernova is the explosion of a dying ______.12.ts can grow from __________ (切割). Some pla13.The chemical formula for citric acid is ________.14.The _______ has a variety of colors and shapes.15.I can ______ (识别) different species of birds.16.Chemical energy is stored in the bonds of ______.17.We can _______ (一起) read a book.18.The butterfly starts as a _________ (毛毛虫).19.Mahatma Gandhi led India to independence through ______ (非暴力) resistance.20.The _______ of an object can be affected by the surface it is on.21.The basic building blocks of matter are called _____.22.The ________ (季节性) affects flowering times.23.The ________ is green and leafy.24.I like to customize my ________ (玩具) with stickers.25.The sun rises in the ______ (east).26.__________ (有机化合物) contain carbon and are found in living things.27.The __________ is a famous area known for its artistic contributions.28.My dad enjoys going to the ____ (movies).29.What is the name of the famous river in China?A. YangtzeB. MekongC. GangesD. Indus答案:A30.The ______ is the largest bird that cannot fly.31.The ______ is a symbol of peace.32.The ______ (小鹿) grazes in the open field, enjoying the warm ______ (阳光).33. A _____ can be very bright and is often seen at night.34.The process of using heat to break down a substance is called _______.35.My ________ (玩具名称) inspires me every day.36. A neutral solution has equal concentrations of ______.37.The capital of the Netherlands is _______.38.What is the term for the outer layer of the atmosphere?A. TroposphereB. StratosphereC. MesosphereD. Exosphere答案:D.Exosphere39.I enjoy learning about history, especially __________.40.What do you call the scientific study of the mind and behavior?A. PsychologyB. SociologyC. AnthropologyD. Psychiatry答案: A41.I always help my mom with ______.42.The _____ (trophy) is shiny.43.She likes to play with her ___. (friends)44.They are eating ________ for lunch.45.The _____ (spaceship) Apollo 11 took astronauts to the moon.46.The main source of energy for the Earth is _____.47.She is wearing a cute ___. (outfit)48.Mice are known for being very _________ (敏捷).49.The process of freezing turns a liquid into a __________.50.The symbol for carbon is _______.51.The cat is ________ on the sofa.52.The chemical formula for propane is ______.53.I have a new ___. (computer)54.The ________ was a vital treaty that shaped international relations.55.The _____ (植物保护) is important for biodiversity.56. Wall of China was built to protect against ________. The Grea57.What do we call a person who studies the nature of reality?A. PhilosopherB. ScientistC. MathematicianD. Historian答案: A58. A ____ is a curious animal that explores new places.59.I love to watch the stars at ______ (夜晚). They twinkle like ______ (宝石).60.She is _______ (coloring) a picture.61.What is the name of the famous landmark in Paris?A. Eiffel TowerB. Louvre MuseumC. Arc de TriompheD. All of the above答案: D. All of the above62.What is the name of the famous landmark in Paris?A. Eiffel TowerB. Big BenC. Statue of LibertyD. Colosseum答案:A63.The _______ can provide essential food for animals.64.The ____ is a small rodent that likes to nibble on seeds.65.The chemical symbol for potassium is _______.66.The _______ (猫头鹰) hoots at night.67.The _______ (The Industrial Revolution) revolutionized manufacturing processes.68.My brother is a __________ (创新型人才).69.What do you call the person who writes books?A. AuthorB. EditorC. PublisherD. Journalist答案:A70.The process of changing a liquid to a gas is called __________.71.My cousin is a very good ____ (swimmer).72.The _____ (carnivorous) plants trap insects for nutrients.73.My favorite place is the ______ (海边).74.The garden is _______ (色彩斑斓的).75.The capital of Turkey is _____.76.Which animal is known for its long neck?A. GiraffeB. ElephantC. RhinoD. Hippo答案: A77.The ______ helps us learn about community service.78.My brother is interested in ____.79.The ____ is often seen fluttering around in the garden.80.The ______ (青蛙) can be found in many environments.81.What is the name of the famous British scientist known for his work on gravity?A. Albert EinsteinB. Isaac NewtonC. Charles DarwinD. Stephen Hawking答案:B82. A _______ (蟋蟀) chirps at night.83.______ is the process of breaking down rocks into smaller pieces.84. A ________ (蝴蝶) flutters around and is very colorful.85.The _____ (wind/snow) is blowing.86.The Earth’s surface is constantly changing due to ______ and erosion.87.They are ___ a picture. (taking)88.My pet is a small ____.89.The Earth's layers include the crust, mantle, outer core, and ______ core.90.The parade was ________ (精彩).91.The __________ (历史的激励作用) drive progress.92.I enjoy _____ (tasting) different herbs.93.The __________ (历史的践行) embodies principles.94.What is the name of the famous American author known for "To Kill a Mockingbird"?A. Harper LeeB. F. Scott FitzgeraldC. Ernest HemingwayD. Mark Twain答案: A. Harper Lee95.My cat's _______ (反应) is very quick.96.The iguana changes its ______ (颜色) to blend in.97.The chemical formula for table salt is _______.98. A ________ (树木) is essential for clean air.99.What is the name of the famous landmark in Paris?A. Eiffel TowerB. Big BenC. Statue of LibertyD. Colosseum答案: A100.My friend is a _____ (志愿者) who helps others.。
学而思作业6
上一段12级楼梯，规定每一步只能上一级或两级楼梯，要登上第11级楼梯，不同的走法共有种。
【练练9】
上一段15级楼梯，规定每一步只能上一级或两级或三级楼梯，要登上第10级楼梯，不同的走法共有种。
【练练10】
现在有足够的1cm×2cm的长方形纸条.用这种纸条去覆盖2cm×3cm的长方形纸，使它们既不重叠，也不超出和留间隙，有3种不同的方法（如左下图）.那么，将这1cm×2cm的长方形纸条覆盖由24个边长为1cm的正方形组成的图形（如右下图），共有（）种不同的方法.
在一种排列顺序里，我们把所有“怨言”的总数叫“怨言数”。（注：一个人可以有两次以上的“怨言”。）
例如：下面的排列，其“怨言数”就是4。
（前） “怨言”
1年级生0次
4年级生0次
3年级生1次
2年级生2次
6年级生0次
5年级生1次
“怨言数”…4次
问：“怨言数”为7的排列顺序有几种？
【练练30】
整数1,2,3，……，14排成一排，满足：每个数或者大于它前面的所有数，或者小于它前面的所有数。那么总共有个满足条件的排列方式。
【练练26】
(2006年“迎春杯”中年级组决赛)
有6个木箱，编号为1，2，3，……，6，每个箱子有一把钥匙，6把钥匙各不相同，每个箱子放进一把钥匙锁好．先撬开1，2号箱子，可以取出钥匙去开箱子上的锁，如果最终能把6把锁都打开，则说这是一种放钥匙的“好”的方法，那么“好”的方法共有种．
【练练27】
给你一架天平和两个砝码，这两个砝码分别重 克和 克，如果再添三个砝码，则这
一般地，对于 的方格网，相对的两个顶点之间的最短路线有 种．
本题中，从 到 的最短路线共有 种；从 到 的最短路线共有 种，从 到 的最短路线共有 种，根据乘法原理，从 到 且必须经过 的最短路线有 种，所以，从 到 且不经过 的最短路线有 种。
三年级数学暑期作业
一、口算练习27×16＝39×66＝17×51＝43×22= 175÷5= 460÷8= 8405÷7= 9160÷4= 3664÷6= 2360÷4= 18×34＝19×25＝27×32＝45×12＝33×12= 32×69= 23×31= 142×23= 32×37= 45×12= 二、竖式计算114×25= 433×36= 25×43=302×24= 59×27= 420÷8=793÷8= 816÷4=三、递等式计算（604-140）×52 573÷3÷1 204÷4×17 2×437+104 863−590+392一、口算练习217×7= 16×14= 38×62=616÷7= 0×125= 179÷8=74×53= 75×24= 0÷155=834÷8= 32×29= 46×53=13×13= 525÷5= 738÷2=23×41= 18×17= 62×27=297÷3= 28×56=二、竖式计算28×47= 47×31= 75×28=12×123= 36×58= 219÷3= 139÷4= 240÷3=三、递等式计算(394−243)÷1 (868−391)÷3(984−414)÷1 72÷8×94 (945+22)×124一、口算练习49×68= 791÷7= 64×67=7×123= 46×79= 76×22= 518÷14= 786×6= 88×66=61×29= 98×23= 77×23=35×7= 179÷8= 99×33=59×12= 208÷3= 110÷4= 455÷5= 412÷4=二、竖式计算840÷7= 35×45= 43×21=33×33= 489÷3= 64－27= 509÷5= 65×34=三、递等式计算458÷2×67 (736−654)÷2 105−101+349 (988−515)÷1 (512+47)÷1一、口算练习623÷7= 416÷8= 73×69= 82×24= 10×9= 7×7= 782÷6 = 69×24 = 463÷3= 506÷7= 78+266= 920-538 = 53×55 = 72×87 = 500÷6 = 37×29= 495+567= 16+54= 46×80= 13+91=二、竖式计算36×18= 774÷8＝508÷2＝370÷5＝19×47＝900÷5＝23×34＝392÷4＝三、递等式计算448−61+477 (69+402)×34762−236+528 347+110−9 1×681×929一、口算练习360×5＝32×68＝207÷9＝63×36＝26×38＝770÷5＝696÷2＝882÷4＝809÷8＝56×79＝64×28＝820÷3＝630÷6＝458÷4＝4×6＝73-29＝10×7＝82-5＝65+47＝12×3＝二、竖式计算629+3= 165×4= 688＋79= 801×9= 398÷9= 920×8= 155-66= 123×123=三、递等式计算309÷3−92 120÷30÷2 21×47+526 673+934−969 55÷5−10一、口算练习17×28= 21×32= 12×41= 21×34= 22×14= 32×12= 41×21= 11×25= 43×12=33×31= 24×12= 238＋647=412-298= 204×3= 920÷8= 783÷6= 824÷4= 720÷3=65×84= 12×63=二、竖式计算32×98= 26×39= 76×18= 45×36= 89×46= 38×21= 39×43= 59×64=三、递等式计算946−644−189 2×23×38(521−341)×45 (470+795)×51190÷5+573一、口算练习65×31= 37×82= 550÷7= 492÷7= 254÷5= 214÷3= 400÷6= 281÷6= 165÷4= 142÷7= 876÷3= 825÷25= 9864÷48= 900÷22= 57×307= 358÷25= 538÷33= 986÷29= 13320÷70= 15×15=二、竖式计算786÷94= 689÷21= 783÷58=45×368= 4800÷600= 2700÷300=986÷29= 31×18三、递等式计算31×18+571 250÷2×20 833−491−138 12×46−235 341−314+76一、口算练习25×480= 99×45= 74×68= 864÷57= 562+865= 602-394= 46×22= 606-208= 258+49= 645－376= 405－316= 93+618= 56×34= 650÷7= 780÷9= 18×78= 59×19= 504×23=二、竖式计算856+72= 57×307= 59×198= 504×32= 603×36= 45×368= 25×480= 450×78=三、递等式计算493÷29 214÷2−1 564÷4×96 246÷6+515 145+657−255一、口算练习562+865= 750×40= 188×25=4800÷600= 2700÷300= 528+462=952-653= 965+652= 562×56=513×56= 432-85= 56+578=854-465= 222-15= 422+52=二、竖式计算424+536= 524-855= 156x56=446x58= 125+65= 552+652=三、递等式计算(799−506)×53 927−103+874501−360−79 (316+945)÷1 2×27×64一、口算练习123+665= 122-45= 135-62= 123+56= 452-125= 589-69= 623+533= 958-652= 364×59= 35×12= 359÷3= 567+28= 602-394= 46×22= 606-208= 603÷7= 198+303= 426÷4= 二、竖式计算23×37= 46×58= 326×5=482÷8= 370÷7= 784-685= 76×15＝486÷2=三、递等式计算(906−747)×312 (721−104)÷11×279+243 (707+349)÷2(643−108)×85数学暑期作业（20）一、口算练习607÷5= 900-807= 915÷3=560÷4= 458+542= 423÷3=87×19= 362÷6= 525÷3＝254÷5= 192÷4＝602÷7＝839÷9＝726÷6＝51×16 ＝78×22＝416÷4＝823÷8＝63×43= 367÷4=二、竖式计算795÷5= 42×53= 15×82=79×97= 28×32＝54×25＝48×61＝39×42 ＝三、递等式计算(810−617)÷1 (554−20)×22(663−644)×21 (86+480)÷1 466÷2÷1数学暑期作业(21)一、口算练习168÷8= 370÷5= 640÷7=19×64= 470÷9= 522÷6=19×64= 470÷9= 522÷6=312÷7= 570÷8= 810÷9=660÷5= 804÷7= 462÷3＝80÷4＝729÷9＝624÷6=2500+300＝二、竖式计算156-97= 386+479= 321×12＝125×23＝18×250＝52×49=34×54=三、递等式计算(473−352)×56 (842+323)÷5 (916+827)×74 291−7−278 795÷2÷1数学暑期作业（22）一、口算练习27×16＝39×66＝17×51＝43×22=175÷5= 460÷8=8405÷7= 9160÷4=3664÷6=2360÷4= 18×34＝19×25＝27×32＝45×12＝33×12=32×69=23×31=142×23=32×37= 45×12=二、竖式计算825÷25=9864÷48=900÷22=57×307 =59×198=689÷34=三、递等式计算180÷9-18 （48+52）÷5 100-25×4 20+80×3 7×（34+56）一、口算练习114×25=433×36=25×43= 302×24=59×27=420÷8= 793÷8=816÷4=217×7= 16×14= 38×62= 616÷7=0×125= 179÷8= 74×53= 75×24=0÷155=834÷8= 32×29=46×53=二、竖式计算1105÷55= 504×32= 358÷25= 538÷33= 986÷29=13320÷70=三、递等式计算190＋360÷24×8 (140＋60)×(26－8) 78×7＋828÷18 (359－42)×53＋64 280 ＋ 650 ÷ 13一、口算练习13×13=525÷5= 738÷2=23×41=18×17= 62×27=297÷3= 28×56=28×47=47×31= 75×28=12×123=36×58= 219÷3=139÷4=240÷3=49×68=791÷7=64×67= 7×123=二、竖式计算603×36= 812÷57=860÷30=647÷27= 786÷94= 689÷21=三、递等式计算105×2×5 800-57×9 （65+16）÷9 230×（140-132）24×5+24×7一、口算练习46×79=76×22= 518÷14=786×6=88×66= 61×29=98×23= 77×23=35×7=179÷8=99×33= 59×12=208÷3= 110÷4=455÷5=412÷4=840÷7= 35×45=43×21= 33×33=二、竖式计算783÷58= 45×368=750×40=188×25= 2704÷26=343÷32=三、递等式计算537+981-699 361-（137+168）500-（132+273）472+448-802718-269-357489÷3= 6.4－2.7=509÷5= 65×34=623÷7=416÷8= 73×69=82×24=10-0.9= 7-0.7= 782÷6 = 69×24 = 463÷3= 506÷7= 78+266= 920-538 =53×55 = 72×87 = 500÷6 = 37×29=二、竖式计算4800÷600=2700÷300= 986÷29= 25×480= 905÷45= 450×78=三、递等式计算（136+64）×（65-345÷23）85+14×（14+208÷26）（284+16）×（512-8208÷18）120-36×4÷18+35（58+37）÷（64-9×5）一、口算练习49.5+56.7= 16-5.4=46×80=13+9.1=36×18= 774÷8＝508÷2＝370÷5＝19×47＝900÷5＝23×34＝392÷4＝360×5＝32×68＝207÷9＝63×36＝26×38＝770÷5＝696÷2＝882÷4＝二、竖式计算899÷36= 367÷29= 562+865 =99007÷45 =7403÷68=864÷57=三、递等式计算183+150+98209+94+198256+76+354 456+176+165702-158+187一、口算练习809÷8＝56×79＝64×28＝820÷3＝630÷6＝458÷4＝4＋0.6＝7.3-2.9＝10－0.7＝8.2-5＝ 6.5+4.7＝ 1.2-0.3＝62.9+3=16.5+4= 6.88＋7.9= 80.1+9=39.8-9.9= 9.20+8=15.5-6.6= 23.45-12.6=二、竖式计算528+462 =952-653 =965+652 =562×56 =513×56 =2565-545=三、递等式计算1000 －（650 ÷ 13）707 －35 × 20（120 －103）× 50 50＋160÷40（58+370）÷（64-45）一、口算练习16.5+4= 6.5＋7.9= 5.5-4.7=8.32+16=80.1-66.91= 17×28=21×32= 12×41=21×34=22×14= 32×12= 41×21=11×25= 43×12= 33×31=24×12=238＋647= 412-298=204×3= 920÷8=二、竖式计算432-85 =2132+52 =222-15 =5258×552 =422+52 =4521-655=三、递等式计算216+378-436 368+417-589950-491-372 236+458+97 687-329-196一、口算练习783÷6=824÷4=720÷3= 65×84=12×63= 32×98= 26×39= 76×18=45×36= 89×46= 38×21= 39×43= 59×64=65×31= 37×82= 550÷7=492÷7= 254÷5= 214÷3= 400÷6=二、竖式计算424+536 =524-855 =56+578= 452×54 =854-465 =552+652=三、递等式计算（2534－958）÷8 792×7÷9 （5021－3918）×6 1208－237×5 4280÷（19－11）一、口算练习281÷6= 165÷4=142÷7=876÷3=825÷25= 9864÷48=900÷22=57×307=358÷25=538÷33=986÷29=13320÷70=786÷94= 689÷21=783÷58=45×368=4800÷600= 2700÷300=986÷29=25×480=二、竖式计算465-52= 4562-565= 156×56=6125+46 =446×58 =125+65=三、递等式计算347+45×2 95÷（64-45）178-5×6+42 420+580-64×21 812-700÷（9+31×11）一、口算练习99007÷45= 7403÷68= 864÷57= 562+865= 602-394= 46×22= 606-208= 258+49 = 645－376= 405－316= 93+618= 56×34= 650÷7= 780÷9= 18×78= 856+72= 57×307= 59×198= 504×32= 603×36=二、竖式计算123+665 =122-45=135-62=123+56 =452-125 =589-69 =三、递等式计算120-144÷18+35 760 ÷ 10 ÷ 38（95 －19 × 5 ）÷74 45 × 20 × 3（270 ＋180）÷（30 －15）一、口算练习45×368= 25×480= 450×78= 562+865= 750×40= 188×25= 4800÷600= 2700÷300= 528+462= 952-653= 965+652= 562×56= 513×56= 432-85= 56+578= 854-465= 222-15= 422+52= 424+536= 524-855=二、竖式计算623+533=958-652= 364×59= 460÷8= 8405÷7=9160÷4=三、递等式计算72÷9－5 564+264-4537650-(546+4530)65×9-4509×80+980一、口算练习156×56= 446×58= 125+65=552+652= 123+665= 122-45=135-62= 123+56= 452-125=589-69= 623+533= 958-652=364×59= 35×12= 359÷3=567+28= 602-394= 46×22=606-208= 603÷7=二、竖式计算27×16＝39×66＝17×51＝43×22=175÷5=3664÷6=三、递等式计算9000-(4500+250)6700+72÷814×6+9×5 900÷(71-68)180÷9-42÷6一、口算练习198+303= 426÷4= 23×37=46×58= 326×5= 482÷8=370÷7= 784-685= 76×15＝486÷2= 607÷5= 900-807=915÷3= 560÷4= 458+542=423÷3= 87×19= 362÷6=525÷3＝254÷5=二、竖式计算2360÷4= 18×34＝19×25＝27×32＝45×12＝33×12=三、递等式计算926+795-324 800-247+156 903-246-382 148+253+192654-507+614一、口算练习192÷4＝602÷7＝839÷9＝726÷6＝51×16 ＝78×22＝416÷4＝823÷8＝63×43= 367÷4= 795÷5= 42×53= 15×82= 79×97= 28×32＝54×25 ＝48×61＝39×42 ＝168÷8= 370÷5=二、竖式计算32×69=23×31= 142×23=32×37= 45×12=114×25=三、递等式计算700+399+218 780-354-146782+399+218 726+179-526801-369+421一、口算练习640÷7= 19×64= 470÷9=522÷6= 19×64= 470÷9=522÷6= 312÷7= 570÷8=810÷9= 660÷5= 804÷7=462÷3＝80÷4＝729÷9＝624÷6= 2500+300＝156-97=386+479= 321×12＝二、竖式计算433×36=25×43= 302×24=59×27=420÷8= 793÷8=三、递等式计算802-136+244 541+170-245243+184-256 630-276+347 510-137+65一、口算练习125×23＝18×250＝52×49=34×54= 123+665=122-45=135-62=123+56= 25×10=452-125=589-69=4900÷7=40×24=70-42=550÷5=940÷2= 25×10=25×10=18×5= 350÷5=50×70=50×80=二、竖式计算816÷4=25×10=217×7=16×14= 38×62= 616÷7=0×125=三、递等式计算72÷8＋9×5 36÷4＋21×2 25÷5－16÷4 56÷7＋36÷6 500×(400－396)一、口算练习700÷5=650÷5=53×30= 12×400=420÷1=79+17= 460÷2= 900÷3= 21×4= 54÷9=72÷8=9×5= 36÷4=21×2=25÷5= 16÷4=56÷7=36÷6=51×16＝78×22＝二、竖式计算179÷8= 74×53= 75×24= 0÷155= 834÷8=32×29=三、递等式计算926+795-324800-247+156903-246-382148+253+192654-507+614数学暑期作业（9）一、口算练习416÷4＝15×82=79×97= 28×32＝54×25＝48×61＝39×42＝645－376=405−316= 93+618= 56×34=222-15= 422+52=660÷5= 804÷7= 462÷3＝80÷4＝729÷9＝624÷6=76÷4=二、竖式计算46×53=13×13=525÷5=738÷2=23×41=18×17= 三、递等式计算700+399+218 780-354-146782+399+218 726+179-526801-369+421数学暑期作业（10）一、数学暑期作业20×50=38×20= 35×20= 609÷3= 50×16=600÷5= 25×30=1600÷4= 87×100=90×80=623+533=958-652= 87×19= 362÷6= 525÷3＝254÷5= 823÷8＝63×43= 367÷4= 297÷3=二、竖式计算62×27= 297÷3= 28×56= 28×47= 47×31= 75×28=三、递等式计算183+150+98 209+94+198256+76+354 456+176+165702-158+187一、口算练习250+300＝18×40=156-97=386+479= 321×12＝125×23＝18×250＝960÷6= 630÷9=4800÷8=240÷3=14×60= 800÷8=280÷2=35×10= 630÷3= 32×30=6×200=3000÷5=640÷8=二、竖式计算12×123=36×58= 219÷3=139÷4= 240÷3=49×68=三、递等式计算802-136+244 541+170-245243+184-256630-276+347510-137+65一、口算练习45×368=25×480=450×78=562+865= 750×40=188×25=26×39=76×18= 45×36=89×46= 38×21= 39×43=192÷4＝602÷7＝839÷9＝726÷6＝795÷5= 42×53=825÷25= 9864÷48=二、竖式计算791÷7=64×67=7×123=46×79=76×22= 518÷14=三、递等式计算216+378-436 368+417-589950-491-372 236+458+97687-329-196一、口算练习900÷22= 214÷3= 400÷6=281÷6= 165÷4=142÷7=876÷3=6000÷2= 600÷5=680÷4= 460÷2= 280÷7= 180÷6=202÷2=820÷2= 162÷2= 12×30= 98÷7= 700÷7= 700÷5=二、竖式计算786×6=88×66= 61×29=98×23= 77×23=35×7=三、递等式计算537+981-699361-（137+168）500-（132+273）472+448-802718-269-357一、口算练习8900-8000=50×50=80×80=60×10= 648÷8=168÷8=370÷5=522÷6= 312÷7=570÷8=810÷9=42×20= 61×50= 160÷8= 990÷9=808÷8= 30×23=480÷8=98÷7=640÷2=二、竖式计算179÷8= 99×33=59×12=208÷3=110÷4= 455÷5=三、递等式计算158+262+138 375+219+381+2255001－247－1021－232（181+2564）+2719378+44+114+242+222一、口算练习50×47= 20×43=700÷7=7000+300= 20×55= 200÷5=20×36=4×25= 65+0=4500÷9= 50×700= 63×20= 800÷4=800÷2= 70×40= 960÷4= 4100-1000=57×307=358÷25=538÷33=二、竖式计算412÷4=840÷7= 35×45=43×21= 33×33=489÷3=三、递等式计算276+228+353+219(375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+999997755－(2187+755)数学暑期作业（16）一、口算练习1000＋545= 1000－988= 3560＋20= 90×90= 250－150=30÷6=687＋99= 999÷3 =4870-3675= 7200÷9 = 9467-5642= 350÷70=960÷4= 4×9 = 350÷5= 55×9 = 450÷5= 1100+1250= 6900-2400=55÷5=二、竖式计算509÷5=65×34=623÷7=416÷8= 73×69=82×24=三、递等式计算2214+638+286 3065－738－10652357－183－317－3572365－1086－214 (13×125)×(3×8)数学暑期作业（17）一、口算练习75÷15= 20×5= 3090＋6= 46×6 = 160－160= 160÷80= 750＋550=550÷5= 111＋189= 198×3= 125×8=100÷100= 6×250=0×0=77＋7=16－6= 810×4=440÷4=33÷11=4×9= 二、竖式计算782÷6 =69×24 =463÷3=506÷7= 78+266=920-538 =三、递等式计算(12+24+80)×50 32×(25+125)178×101－17884×36+64×84 75×99+2×75数学暑期作业(18)一、口算练习187＋299= 398－299 = 587＋496=774－674= 2660＋26= 26÷26= 153÷153=57+657= 32÷3=32÷16= 300－111=300－222= 75÷15=20×5= 150－75=25－20= 3390－10=10×95= 687＋100=99－67= 二、竖式计算53×55 = 72×87 = 500÷6 =37×29=46×80=36×18=三、递等式计算83×102－83×2 98×199123×18－123×3+85×12350×(34×4)×3 25×（24+16）数学暑期作业（19）一、口算练习1000＋456=1000+988=3560＋20=80×90= 1250－150=300÷6=687＋99=330÷3 = 4870-367=789＋7200=81÷9= 9467-5642= 350÷70=387－387=888＋888=640÷80= 15×5=23×3= 12×2×5=480÷80=二、竖式计算774÷8＝508÷2＝370÷5＝19×47＝900÷5＝23×34＝三、递等式计算178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷75 16800÷120数学暑期作业（20）一、口算练习16×5=27×3=90÷15=48÷4= 640÷16= 39÷3=24×20= 32×3= 48÷16=12×8= 27×3= 56÷14= 24÷8=14×2= 83－45=560÷80= 96÷24= 40÷20= 40×30=37＋26=二、竖式计算392÷4＝360×5＝32×68＝207÷9＝63×36＝26×38＝三、递等式计算22×4＋22121×3＋410 40÷2＋174147＋72÷8 9×4＋420数学暑期作业（21）一、口算练习2800÷4=33÷11=369＋4=69×9= 187＋299=587－299=587＋496=999－674 = 2660÷26=676÷26=153÷153=563+657= 32÷32=32÷16=300－25=300-222=75÷15=20×5 =150－75=25－20= 二、竖式计算770÷5＝696÷2＝882÷4＝809÷8＝56×79＝64×28＝三、递等式计算2×80÷4 120×5÷2 202＋36÷930÷5＋240 81÷9＋877一、口算练习6900-2400=25÷5 =75÷15=20×5 = 3090＋50=6×6 =387－387=160－160= 160÷80 =750＋550=550÷5 =111＋189= 126×3 =125×8=100÷100 =6×250=88×0 =11＋857=76×16=810×4=二、竖式计算820÷3＝630÷6＝458÷4＝17×28= 21×32= 12×41=三、递等式计算66×5+774 921+7×4 80×6×2 770÷7+65 807＋20÷2一、口算练习300÷6=99×9 =6900-2400=2500÷ 5 =72÷9=56÷8=54 ÷ 9=36 ×8 =280× 4=550 ÷5 =60×8=2580+1570 =60×23=200-17=960÷4=77×9 =350÷5=9×9 =450÷5=250+1250 =二、竖式计算21×34=22×14= 32×12=41×21=11×25= 43×12=三、递等式计算100－50÷5 35－35÷7 302＋30×2 600×8÷3 40＋100÷5一、口算练习80×30= 400+5600= 9450-3200= 10000-4200 =2400÷6= 45×45= 800× 7= 300－180 =1600÷2= 500＋230 = 4000 ÷ 8 = 700+ 350 = 320÷8= 64＋64= 270 ÷ 3 = 88×9=630 ÷ 9 = 640+ 320 = 2800+32= 32× 6 =二、竖式计算33×31= 24×12= 238＋647=412-298=204×3=920÷8=三、递等式计算434＋25×5 60－12×3 64÷8＋456640＋60×4 72÷8＋9×5一、口算练习9×80=890+980 =71-68=9000-4500= 4500+250= 6700+72=88÷8 =14×6=49×5 =900÷9=180÷9=42÷6=12÷6=45×3= 8×71=910-720=760-540= 1110 −6500=580+1250=7500-3500 = 二、竖式计算783÷6=824÷4= 720÷3=65×84=12×63= 32×98=三、递等式计算56÷7＋36÷6 500×(400－396)72÷9－5564+264-4537650-(546+4530)数学暑期作业（26）一、口算练习64÷8=654＋456 =640＋60=700×4 =5×7=48÷6 =42÷7=36÷6 =37×4=19×8 =500×0=400－396= 72÷9=555－5 =564+264=1000-453 = 7650-546=546+4530 =65×9=8550-450 = 二、竖式计算786÷94=689÷21= 783÷58=45×368=4800÷600=2700÷300=三、递等式计算65×9-450 9×80+9809000-(4500+250)6700+72÷8 14×6+9×5数学暑期作业(27)一、口算练习80×6=640×2 =770÷7=982+65= 807＋20=520÷2 =100－50=50÷5 = 35－35=35÷7 =302+30=30×2 =600×8=480÷3= 40＋100=450÷5= 434＋25=75×5 =60－12=99×3 =二、竖式计算364×59= 35×12= 359÷3=567+28=602-394=46×22=三、递等式计算900÷(71-68) 180÷9-42÷612÷6＋45×3 8×(910-720) 760-540+1110数学暑期作业（28）一、口算练习174＋174 =147＋72=64÷8 =9×4=960＋420 =2×80=120÷4 =120×5=200÷2 =202＋36=783÷9 =30÷5=647＋240 =81÷9=0＋877=66×5=626+774 =921+7=663×4 =99÷9=二、竖式计算986÷29=25×480=99007÷45=7403÷68=864÷57= 562+865=三、递等式计算6500+1250-350080×30+5600 9450-3200-4200 2400÷6－45 800× 7－180。
银川2024年07版小学五年级下册第二次英语第6单元暑期作业(含答案)
银川2024年07版小学五年级下册英语第6单元暑期作业(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、选择题：What do you call the process of converting a liquid into a solid?A. FreezingB. MeltingC. EvaporatingD. Condensing2、填空题：The sun helps plants to ______ (生长) by providing light.3、How many months are in a year?A. 10B. 11C. 12D. 13答案: C4、What is the smallest continent?A. AfricaB. AustraliaC. AsiaD. Europe答案:B5、What is the capital city of Azerbaijan?A. BakuB. GanjaC. MingachevirD. Lankaran6、填空题：My favorite animal is a ______ (大象).7、填空题：In conclusion, my best friend is ______ because they make my life better. I am so grateful to have them by my side!8、What is the capital city of the Czech Republic?A. PragueB. BratislavaC. BudapestD. Warsaw答案: A9、填空题：When I feel sad, I like to hug my ________ (玩具名). It comforts me and makes me feel ________ (形容词) again.10、听力题：A ____ can often be found in ponds and makes a croaking sound.11、填空题：________ was the first female British Prime Minister.12、What do we call a large body of saltwater?A. RiverB. LakeC. OceanD. Pond答案: C13、听力题：The _____ (窗帘) is drawn.14、听力题：The law of conservation of mass states that mass cannot be ______ or created.15、填空题：The __________ (历史的多样性诠释) enrich understanding.16、选择题：What do we call the act of telling someone a story?A. NarrationB. StorytellingC. RecitingD. Reading17、听力题：The country of Italy is shaped like a __________.18、听力题：The dog chases the ______ (ball).19、听力题：A solid has a _____ shape and volume.20、What is the value of 8 4 + 2?A. 4B. 6C. 8D. 10答案:B21、听力题：The chemical symbol for manganese is __________.22、听力题：A liquid's resistance to flow is called ______.23、填空题：The invention of ________ made it easier to travel long distances.24、填空题：A ____(networking event) connects professionals in the field.25、填空题：A dolphin leaps gracefully out of the _______ and splashes back in.26、听力题：__________ are found in many household cleaners.27、听力题：The ______ is known for her charitable work.28、What is the name of the famous American actress known for her role in "Breakfast at Tiffany's"?A. Marilyn MonroeB. Audrey HepburnC. Grace KellyD. Elizabeth Taylor答案: B29、填空题：__________ (温度) affects the rate of chemical reactions.30、填空题：I can ______ (使用) technology for school projects.31、填空题：I enjoy creating my own games with my ________ (玩具名称).32、填空题：The forest is very _______ (神秘的).33、填空题：My favorite animal is a ______ (猫) that loves to chase toys.34、填空题：The __________ (历史的探讨) encourages inquiry.35、填空题：A sunflower follows the _____ (太阳).36、Which planet is known as the Red Planet?A. JupiterB. SaturnC. MarsD. Neptune答案:C37、What do you call the process of learning?A. EducationB. TrainingC. StudyingD. Knowledge答案: A38、听力题：I can ________ (adapt) to new situations.39、听力题：The __________ is crucial for maintaining clean water supplies.The tortoise has a hard _________. (壳)41、What is the name of the fairy tale character who lost her glass slipper?A. Snow WhiteB. CinderellaC. Little Red Riding HoodD. Rapunzel答案:B42、听力题：A _______ reaction absorbs heat from the surroundings.43、ts can ______ (与其他植物竞争) for resources. 填空题：Some pla44、填空题：My favorite dessert is ______ (冰淇淋) topped with fresh ______ (水果).45、填空题：The __________ (历史的总结) highlight significant trends.46、填空题：The manatee is sometimes referred to as a sea ______ (牛).47、What is the name of the plant that grows in water?A. CactusB. LilyC. OakD. Pine答案: B48、听力题：I like to ______ at the library. (read)49、听力题：Chlorophyll helps plants absorb ________ from sunlight.50、What common kitchen appliance is used for cooking food quickly using steam?A. OvenB. MicrowaveC. StoveD. Toaster答案:BThe Emancipation Proclamation freed ________ in the United States.52、听力题：The girl is very ________.53、What is the capital of Italy?A. VeniceB. RomeC. NaplesD. Florence答案:B54、What do you call the person who teaches students?A. DoctorB. TeacherC. EngineerD. Chef答案:B55、填空题：The ancient Greeks held festivals in honor of their ________.56、听力题：I like to ___ (have) fun in the snow.57、填空题：I appreciate my parents’ love and ____.58、What is the past tense of 'run'?A. RanB. RunnedC. RunningD. Runs答案:A59、填空题：My favorite animal is the _____ (猫), because it is very cute.60、填空题：I planted some __________ (香草) in my kitchen garden.61、How do you say "good morning" in Italian?A. BuongiornoB. BuonaseraC. BuonanotteD. Ciao62、填空题：The __________ is a famous historical site in Greece. (雅典卫城)63、填空题：A __________ (合成路径) outlines the steps to create a specific compound.64、填空题：The ______ (小龙) in the story is very brave and helps its ______ (朋友).65、听力题：The garden has many ______ (flowers) blooming.66、听力题：The _______ of a wave can be affected by changes in temperature.67、听力题：He is _____ his homework. (doing)68、填空题：The bee makes _______ (蜂蜜) in its hive.69、听力题：The puppy is very ________.70、听力题：The __________ is a famous area known for its innovation.71、What color are the stars in the American flag?A. RedB. BlueC. WhiteD. Yellow答案:C72、What is the name of the famous explorer who discovered the New World?A. Christopher ColumbusB. Ferdinand MagellanC. Vasco da GamaD. John Cabot答案: A73、听力题：The cat is _____ with its toy. (playing)The parakeet enjoys hanging upside down while ________________ (玩).75、听力题：They are ___ a story. (telling)76、What is the freezing point of water?A. 0 degrees CelsiusB. 100 degrees CelsiusC. 50 degrees CelsiusD. 25 degrees Celsius答案:A77、填空题：I want to be a _______ when I grow up (我长大后想成为_______).78、填空题：The __________ is where most of the world's earthquakes occur. (环太平洋火山带)79、填空题：The ______ (生态保护) helps prevent extinction.80、填空题：The ________ (探险活动) is thrilling and educational.81、听力题：The kids are ___ (laughing).82、选择题：What do we call a sweet treat made from meat?A. JerkyB. SausageC. BaconD. All of the above83、What is the currency used in the United States?A. EuroB. DollarC. PoundD. Yen答案:B84、填空题：A _____ is an area characterized by specific vegetation.My favorite ice cream flavor is ______ (草莓).86、填空题：I enjoy playing __________ (游戏名) with my __________ (玩具名).87、填空题：The __________ (历史展览) showcase important events and figures.88、听力题：Salt is formed when an acid reacts with a ________.89、听力题：My sister loves to _____ with her dolls. (play)90、填空题：I like to make ________ (手工艺品).91、 Age is known for the use of _____ tools. 填空题：The Ston92、What do you call the main ingredient in guacamole?A. AvocadoB. TomatoC. OnionD. Pepper93、What do you call a baby dog?A. KittenB. PuppyC. CubD. Chick答案: B. Puppy94、填空题：My _______ (狗) loves to dig in the yard.95、填空题：My dad taught me how to ride a ________ (摩托车). It was a thrilling ________ (体验).96、听力题：The main gas involved in photosynthesis is ______.97、填空题：The hummingbird can hover in ________________ (空中).A ________ is very colorful and pretty.99、填空题：The ________ grows in the sunlight.100、听力题：The stream is ___ (flowing) peacefully.。
五升六暑期巩固课程作业(6)
2、建一个长100米、宽40米、深3米的游泳池。
1)这个游泳池的占地面积是多少？
2)在这个游泳池四周和底面贴瓷砖，贴瓷砖的面积有多大？
3、用一根长60厘米的铁丝围成一个正方体，这个正方体的表面积是多少？
4、一个长方体正好可以切成5个同样大小的正方体，切成的５个正方体的表面
积比原来长方体表面积多了200平方厘米，求原来长方体的表面积？
5、把棱长是1米的正方体分割成8个体积相等小正方体，表面积增加了多少平方米？
6、某大楼大厅内有五根长方体水泥柱，每根长8分米，宽6分米，高5米，工作人
员打算在柱子四周包上彩纸，至少需要多少平方米的彩纸？如果每平方米彩纸5元钱， 一共需要多少钱？。
实验学校一年级暑期缤纷作业(2022年6月)
实验学校一年级暑期缤纷作业（2022年6月）
简介
实验学校一年级的学生在2022年6月迎来了暑假，老师们为他们设计了丰富多彩的暑期作业，让学生在轻松愉快的氛围下继续学习和成长。
学生作业内容
1.阅读任务：
–学生需要每天阅读15分钟以上，记录阅读内容和感想。
–每周选择一本自己喜欢的绘本，在家人的陪伴下朗读。
2.写作任务：
–每周写一篇日记，记录自己的暑假生活。
–撰写一篇关于暑假旅行的作文，描述自己的见闻和感受。
3.数学任务：
–完成每日的数学口算练习，强化基础计算能力。
–参加暑期数学乐园活动，完成各类数学游戏和探究任务。
4.手工艺任务：
–制作一个暑假手账，记录自己每天的心情和所做的事情。
–参加手工DIY活动，制作一个有创意的小作品。
5.科普任务：
–每周选择一个感兴趣的主题进行探索，并用自己的语言向同学分享。
–观察身边的生活现象，提出自己的好奇问题，并寻找答案。
家长配合
家长们需要在暑假期间给予学生适当的指导和支持，帮助他们合理安排学习和休息时间，营造良好的学习氛围。
同时，学生的作业完成情况也需要家长进行跟踪和督促，确保任务按时完成。
结语
通过暑期缤纷作业，实验学校一年级的学生将在快乐学习中度过一个充实而有意义的假期。
希望每位学生在完成作业的过程中培养自主学习和积极思考的能力，为未来的学习打下良好的基础。
愿大家度过一个愉快的假期，迎接新的学期挑战！。
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暑期作业6第二单元 铁、铜的获取及应用考点一：了解铁、铜的性质和用途 1. 铁的性质(1) 物理性质：有金属光泽的银白色金属，质软，有良好的导电、导热性，具有延展性，能被磁铁吸引。
(2) 化学性质① 与非金属反应：3Fe ＋2O 2=====点燃Fe 3O 4；2Fe ＋3Cl 2=====点燃2FeCl 3。
② 与非氧化性酸反应：Fe ＋2H ＋===Fe 2＋＋H 2↑。
③ 与盐反应 Fe ＋Cu 2＋===Fe 2＋＋Cu ； 2Fe 3＋＋Fe===3Fe 2＋。
④ 与水反应 3Fe ＋4H 2O(g)=====高温Fe 3O 4＋4H 2。
2. 铜的性质(1) 物理性质：有金属光泽的紫红色金属，质软，具有良好的导电导热性、延展性。
(2) 化学性质① 与非金属反应：2Cu ＋O 2=====△2CuO ； Cu ＋Cl 2=====点燃CuCl 2。
② Cu 与强氧化性的酸反应：Cu ＋2H 2SO 4(浓)=====△CuSO 4＋SO 2↑＋H 2O ；③ 与盐反应：Cu ＋2FeCl 3===CuCl 2＋2FeCl 2； Cu ＋2AgNO 3===Cu(NO 3)2＋2Ag 。
考点二：了解铁、铜重要化合物的性质和用途及在生产、生活中的应用(B )1. 氧化铁的性质：又名铁红，棕红色粉末，难溶于水，易溶于酸，常用作颜料。
与酸反应：Fe 2O 3＋6HCl===2FeCl 3＋3H 2O 。
工业炼铁：Fe 2O 3＋3CO=====高温2Fe ＋3CO 2。
铝热反应：Fe 2O 3＋2Al=====高温2Fe ＋Al 2O 3。
铝热剂是铝和高熔点的金属氧化物组成的混合物。
2. 氢氧化铁的性质：红褐色固体，难溶于水，易溶于酸，受热易分解。
与酸反应：Fe(OH)3＋3H ＋===Fe 3＋＋3H 2O 。
受热分解：2Fe(OH)3=====△Fe 2O 3＋3H 2O 。
制备：Fe 3＋＋3OH －===Fe(OH)3↓。
3. 氧化铜：黑色粉末，难溶于水，易溶于酸。
CuO ＋2HCl===H 2O ＋CuCl 2； CuO ＋H 2=====△Cu ＋H 2O ； CuO ＋CO=====△Cu ＋CO 2。
4. 氢氧化铜：蓝色固体，难溶于水，易溶于酸，受热易分解；Cu(OH)2＋2HCl===CuCl 2＋2H 2O ；Cu(OH)2=====△CuO ＋H 2O 。
考点三：了解Fe 3＋的氧化性，认识Fe 3＋和Fe 2＋之间的相互转化及初步学会Fe 3＋的检验方法 1. Fe 3＋和Fe 2＋之间的相互转化：Fe2＋氧化剂还原剂Fe 3＋FeCl 2溶液跟Cl 2反应的离子方程式：2Fe 2＋＋Cl 2===2Fe 3＋＋2Cl －；FeCl 3溶液中加入铁粉的离子方程式：2Fe 3＋＋Fe===3Fe 2＋。
2. Fe 3＋的检验：与KSCN 反应出现血红色溶液，反应的离子方程式为Fe 3＋＋3SCN －===Fe(SCN)3。
练习：1．将铁屑溶于过量盐酸后，再加入下列物质，不会有三价铁生成的是( )A ．硫酸B ．氯水C ．硝酸锌D ．溴水 2．下列关于铁的叙述正确的是( )①铁能被磁铁吸引，但纯铁易锈蚀。
②在人体的血红蛋白中含有铁元素。
③铁位于周期表中的第四周期第ⅧB 族。
④铁能在氧气中剧烈燃烧，但不能在水蒸气中燃烧。
⑤铁与硝酸反应的产物仅是Fe(NO 3)3。
⑥不能通过化合反应生成FeCl 2和Fe(OH)3。
A ．①B ．②④C ．②⑤D ．④⑥3．将Cu 片放入0.1 mol·L －1 FeCl 3溶液中，反应一段时间后取出Cu 片，溶液中c (Fe 3＋) ∶c (Fe 2＋)＝2 ∶3，则溶液中Cu 2＋和Fe 3＋的物质的量之比为(不考虑溶液体积变化)( )A ．3 ∶2B ．3 ∶5C ．4 ∶3D ．3 ∶44、在火星上工作的美国“勇气号”、“机遇号”探测车的一个重要任务就是收集有关Fe 2O 3及硫酸盐的信息，以证明火星上存在或曾经存在过水。
以下叙述正确的是 ( )A ．铝热剂就是单指Fe 2O 3粉和铝粉的混合物B ．检验从火星上带回来的红色物质是否是Fe 2O 3的操作步骤为：样品→粉碎→加水溶解→过滤→向滤液中滴加KSCN 溶液C ．分别还原a mol Fe 2O 3所需H 2、Al 、CO 的物质的量之比为3：2：3D ．FeSO 4·7H 2O 属硫酸盐，含结晶水，是混合物5、不用其他试剂无法鉴别的一组溶液是（）A．氯化铁溶液和氯化亚铁溶液B．硫酸钠溶液和氯化钠溶液C．氯化铝溶液和氢氧化钠溶液 D.偏铝酸钠、硫酸4．下列叙述正确的是：（）A·铁制容器可盛装热的浓硫酸B·硅在常温下性质稳定，不与任何酸反应C．Al(OH)3胶体具有吸附性用做净水剂D.同质量的铝与足量的稀盐酸和氢氧化钠溶液反应会生成相同体积的氢气且消耗HCl与NaOH的物质的量之比也相等6、下列金属冶炼的反应原理，错误的是（）A．2NaCl(熔融)通电═══2Na+Cl2↑ B．Al2O3+3CO 高温═══2Al+3CO2C．Fe3O4+4CO 高温═══3Fe+4CO2D．2HgO △══2Hg+O2↑7、.火星探测器发回的信息表明，火星上存在针铁矿[化学式：FeO(OH)]和黄钾铁矾[化学式：KFe3(SO4)2(OH)n]，已知两种矿物中铁的价态相同，则KFe3(SO4)2(OH)n中n值为：（）A．4 B．5 C．6 D．78、赤铜矿的主要成分是氧化亚铜（Cu2O），辉铜矿的主要成分是硫化亚铜（Cu2S），将赤铜矿与辉铜矿混合加热有如下反应：Cu2S + 2Cu2O6Cu + SO2↑下列对于该反应的说法中，正确的是( )A．该反应中的氧化剂只有Cu2O B．Cu2S在反应中既是氧化剂又是还原剂C．Cu既是氧化产物又是还原产物D．氧化产物与还原产物的物质的量之比为6：19、制印刷电路时常用氯化铁溶液作为“腐蚀液”：发生的反应为2FeCl3+Cu＝2FeCl2+CuCl2，向盛有氯化铁溶液的烧杯中同时加入铁粉和铜粉，反应结束后，下列结果不可能出现的是( )A．烧杯中有铜无铁B．烧杯中有铁无铜C．烧杯中铁、铜都有D．烧杯中铁、铜都无10、．由锌、铁、铝、镁四种金属中的两种组成的混和物10克，与足量的盐酸反应产生的氢气在标准状况下为11.2升，则混和物中一定含有的金属是（）A．锌B．铁C．D．镁11、能实现下列物质间直接转化的元素是()单质――――→＋O2氧化物――――→＋H2O酸或碱――――――→＋NaOH或HCl盐A．钠B．铝C．铜D．铁12．铁及其化合物之间的相互转化可用下式表示：Fe2＋①④Fe3＋②③FeO42－(高铁酸根离子)回答下列有关问题：(1)Fe与过量稀硫酸反应可以制取FeSO4。
若用反应所得的酸性溶液，实现上述①的转化，要求产物纯净，可选用的试剂是________(填序号)。
a．Cl2 b．Fe c．HNO3 d．H2O2(2)上述转化得到的硫酸铁可用于电化浸出黄铜矿精矿工艺。
精矿在阳极浸出的反应比较复杂，其中有一主要反应：CuFeS2＋4Fe3＋===Cu2＋＋5Fe2＋＋2S(CuFeS2中S为－2价) 则下列说法正确的是________(填序号)。
a．从物质分类的角度看，黄铜矿属于合金b．反应中，所有铁元素均被还原c．反应中，CuFeS2既作氧化剂又作还原剂d．当转移1 mol电子时，有46 g CuFeS2参加反应(3)下述反应中，若FeSO4和O2的化学计量数比为2 ∶1，试配平下列方程式：(4)高铁酸钾(K2FeO4)是一种新型、高效的绿色水处理剂，在水中发生反应生成氢氧化铁胶体。
高铁酸钾作为水处理剂发挥的作用是________、________。
第三单元 含硅矿物与信息材料考点一：了解硅和二氧化硅的性质和用途(A ) 1. 硅的存在和性质在地壳中含量为26.3%，次于氧。
硅在自然界中以熔点很高的氧化物及硅酸盐的形式存在于岩石、沙子和土壤中，占地壳质量90%以上。
是无机非金属材料中的主角。
晶体硅是带有金属光泽的灰黑色固体，熔点高、硬度大、有脆性，常温下不活泼。
晶体硅的导电性介于导体和绝缘体之间，是良好的半导体材料，可制成光电池等能源。
2. 二氧化硅(1) 物理性质：二氧化硅晶体熔点高，硬度大。
(2) 化学性质：酸性氧化物，难溶于水，能与氢氟酸、碱性氧化物、强碱反应。
SiO 2＋CaO=====高温CaSiO 3；SiO 2＋2NaOH===Na 2SiO 3＋H 2O ；SiO 2＋4HF===SiF 4↑＋2H 2O 。
(3) 用途：是制造光导纤维的主要原料；石英制作石英玻璃、石英电子表、石英钟等；水晶常用来制造电子工业的重要部件、光学仪器、工艺品等；石英砂常用作制玻璃和建筑材料。
考点二：了解陶瓷、玻璃、水泥等硅酸盐产品的用途(B )传统硅酸盐工业：陶瓷工业、水泥工业和玻璃工业。
1、水泥的原料是黏土和石灰石。
2、玻璃的原料是纯碱、石灰石和石英，成分是Na 2SiO3、CaSiO 3、SiO 2；反应原理：SiO 2＋CaCO 3=====高温CaSiO 3＋CO 2↑；SiO 2＋Na 2CO 3=====高温Na 2SiO 3＋CO 2↑。
3、陶瓷的原料是黏土。
注意：三大硅酸盐产品的制备原料中，只有陶瓷没有用到石灰石。
练习1．下列变化不能通过一步反应完成的是 --------------------- ------( )A ．SiO 2―→CaSiO 3B ．SiO 2―→H 2SiO 3C ．CO 2―→CaCO 3D ．SO 2―→Na 2SO 3 2．材料与化学密切相关，表中对应关系错误的是 --------------------------- ( )氧化铝3．地壳中含量第一和第二的两元素形成的化合物，不具有的性质是--------------( )A ．在一定条件下可与NaOH 溶液反应B ．与碳在高温下反应可制取两元素中的一种单质C ．熔点很高D ．是酸性氧化物，与水反应生成相应的酸4．下列物质的保存正确的是----------------------------------------------- ( )A ．氢氟酸存放在带橡皮塞的棕色玻璃瓶内B ．氯水保存在棕色玻璃瓶中C ．NaOH 溶液存在配有磨口玻璃塞的试剂瓶中D ．Na 保存在水中5．硅及其化合物的应用范围很广。
下列说法正确的是-------------------------( )A ．硅是人类将太阳能转换为电能的常用材料B ．粗硅制备单晶硅不涉及氧化还原反应C ．石英玻璃和餐桌上的瓷盘都是硅酸盐制品D ．盐酸可以与硅反应，故采用盐酸为抛光液抛光单晶硅6．石灰石是许多工业的原料之一，但制取下列物质不需要石灰石的是 ----------- ( )A ．制硅酸B ．制水泥C ．制玻璃D ．工业炼铁7．汉代器物上的颜料“汉紫”的成分为紫色的硅酸铜钡(化学式：BaCuSi 2O x ，Cu 为＋2价)，下列有关“汉紫”的说法不正确的是----------------------------------- ( ) A ．用盐的形式表示：BaSiO 3·CuSiO 3 B ．用氧化物形式表示：BaO·CuO·2SiO 2 C ．易溶于强酸、强碱 D ．性质稳定，不易褪色8．下列物质中，通入CO 2不能析出固体的是 ------------------------------- ( )A ．Na 2SiO 3溶液B ．NaClO 溶液C ．饱和Na 2CO 3溶液D ．Ca(OH)2溶液9．硅单质是从它的氧化物中提取出来，主要的化学反应如下：SiO 2 ＋2 C =====高温电炉Si ＋2CO↑粗硅转变为纯硅(常用方法)：Si(粗)＋2Cl 2=====高温SiCl 4； SiCl 4＋2H 2=====高温Si(纯)＋4HCl 根据以上反应，回答下列问题。