第八次作业
蚌埠2024年11版小学3年级第八次英语第1单元暑期作业
蚌埠2024年11版小学3年级英语第1单元暑期作业考试时间：100分钟（总分:110）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、What is the name of the famous singer known for "Like a Rolling Stone"?A. Elton JohnB. Bob DylanC. Bruce SpringsteenD. Johnny Cash答案：B2、听力填空题：I think that storytelling is a powerful way to share __________.3、What do we call the first meal of the day?A. LunchB. BreakfastC. DinnerD. Snack答案:B4、听力题：The _____ (garden) is full of plants.5、填空题：I enjoy drawing ________ (漫画) in my sketchbook.6、听力题：She is learning to ________.7、听力题：Geologists study the Earth’s structure, materials, and ______ processes.8、How many players are on a soccer team?A. 10B. 11C. 12D. 139、填空题：I want to _______ (学习) about ecology.10、What is the capital of Switzerland?A. BernB. ZurichC. GenevaD. Lucerne答案:A11、听力题：The chemical symbol for titanium is __________.12、填空题：I feed my cat ______ (鱼) every day.13、听力题：The chemical reaction that releases energy is called _______.14、填空题：I like to go ______ (购物) with my mom at the mall.15、听力题：A capacitor stores electrical ______.16、填空题：Every morning, I eat ______ (早餐) and get ready for school. It helps me start my day right.17、填空题：The tiger is a _______ (强壮的) predator in the jungle.18、听力题：The chemical symbol for rhodium is ______.19、听力题：I need to _____ (finish/start) my homework.20、What are the two main types of telescopes?A. Reflecting and refractingB. Optical and radioC. Infrared and ultravioletD. Manual and digital21、What do rabbits like to eat?A. MeatB. GrassC. FishD. Bread答案: B22、听力题：The __________ is the temperature at which a substance changes from a liquid to a gas.23、听力填空题：I believe in the power of forgiveness. Letting go of grudges helps us move forward and find peace. I practice forgiveness by __________ when conflicts arise.24、填空题：My neighbor, ______ (我的邻居), has a big garden.25、填空题：The _____ (青蛙) can be found near ponds and streams.26、Which of these is a vegetable?A. AppleB. CarrotC. BananaD. Grape答案:B27、What is the color of grass?A. BlueB. GreenC. RedD. Brown答案: B28、听力题：A chemical bond can be ionic or ______.29、听力题：The _______ of a flashlight beam widens as it moves away from the source.30、听力题：The ______ is what keeps us grounded on Earth.The _____ (大雁) is migrating south for the winter.32、What is the name of the fairy tale character who wears a red cloak?A. CinderellaB. Little Red Riding HoodC. GoldilocksD. Snow White答案: B33、填空题:My favorite ice cream flavor is ________.34、填空题：A _____ (植物保护活动) raises awareness about endangered species.35、听力题：Chemical equations must be balanced to obey the law of ________ of mass.36、听力题：I see a _____ (古董) at the fair.37、What do you call a small, round fruit?A. BerryB. MelonC. Stone fruitD. Citrus答案:A38、What is the capital of the United Kingdom?A. LondonB. EdinburghC. CardiffD. Belfast答案:A39、填空题：The _____ (生态监测) tracks plant health over time.40、听力题：The ______ helps us learn about health.41、听力题：I want to ___ a new toy. (get)A dolphin leaps gracefully out of the _______ and dives back in.43、填空题：The turtle moves very _______ (乌龟的动作很_______).44、What is the name of the famous ancient city in Mexico?A. TeotihuacanB. Chichen ItzaC. TulumD. Copan答案:B. Chichen Itza45、填空题：The first humans settled in _____.46、How do you feel when you win a game?A. SadB. HappyC. AngryD. Tired47、填空题：My friend and I are in the same __________. (班级)48、听力题：Nebulas are giant clouds of ______.49、填空题：The ________ (沟通渠道) are vital for diplomacy.50、听力题：The __________ is an important trade route.51、填空题：I enjoy collecting ________ (玩具名称) from different countries.52、听力题：The main purpose of carbohydrates is to supply _____.53、听力题：My brother is a ______. He enjoys outdoor activities.54、听力题：A chemical change often produces one or more new ______.The first person to win the Nobel Prize in Physiology was _______. (埃米尔·冯·贝尔)56、听力题：The Earth's crust is made up of different __________.57、填空题：I like to keep my ________ (名词) organized so I can find my toys easily.58、Which of these is a sea creature?A. EagleB. SharkC. TigerD. Elephant答案:B59、听力题：My dad likes to watch ____ (movies) on weekends.60、听力题：The ______ helps with the production of saliva.61、选择题：What is the name of the famous mouse created by Walt Disney?A. TomB. JerryC. MickeyD. Donald62、What is the largest planet in our solar system?A. EarthB. MarsC. JupiterD. Venus63、听力题：The cat purrs when it is _____ happy.64、听力题：A __________ is a chemical reaction that occurs with the release of heat.65、What do we call the period of time before written records?A. PrehistoricB. HistoricC. Ancient答案：A66、What is the name of the first man on the moon?A. Neil ArmstrongB. Buzz AldrinC. Yuri GagarinD. John Glenn67、Which of these is not a planet?A. MarsB. SunC. NeptuneD. Earth68、填空题：I saw a ________ running across the road.69、听力题：Hydrochloric acid is found in our ________.70、What is the name of the holiday celebrated on December 25th?A. HalloweenB. ThanksgivingC. ChristmasD. New Year答案: C71、听力题：The phase change from gas to liquid is called _______.72、填空题：The _____ (小猫) plays with yarn.73、What is the capital city of the Maldives?A. MaléB. Addu CityC. FuvahmulahD. Kulhudhuffushi74、填空题：The ancient Romans were known for their public ________ (浴场).75、What is the name of the famous river in Egypt?A. AmazonB. NileD. Yangtze答案: B. Nile76、填空题：A penguin waddles on the _______ and swims gracefully.77、What is the name of the cat in "The Cheshire Cat"?A. TomB. JerryC. CatnipD. Cheshire答案:D78、填空题：I like to make ______ for my friends' birthdays.79、填空题：A ________ can live in the water or on land.80、What is the main ingredient in a Caesar salad?A. SpinachB. Romaine lettuceC. KaleD. Arugula答案: B81、填空题：The ________ was a major event in the history of World War I.82、填空题：My favorite insect is a ________.83、填空题：My _____ (家庭) is my support system.84、What do you call the person who flies an airplane?A. PilotB. DriverC. CaptainD. Engineer85、听力题：The Earth's crust is affected by both human and natural ______.86、What do we call a young starfish?A. LarvaB. HatchlingC. KitD. Calf答案:A. Larva87、填空题：The _______ (The Boston Massacre) fueled colonial resistance to British rule.88、填空题：I want to learn how to ________ (做饭).89、填空题：The _______ (猴子) eats bananas and berries.90、听力题：A __________ is an area with many recreational activities.91、What is the capital of Portugal?A. LisbonB. MadridC. RomeD. Paris答案:A92、填空题：A _______ reaction is one that absorbs heat. (吸热)93、听力填空题：I enjoy attending workshops to learn new __________.94、填空题：In ancient Rome, the Senate was a governing __________. (机构)95、听力题：The capital of Sri Lanka is _______.96、听力题：I need to _______ (finish) my homework.97、听力题：She is a friendly ________.98、听力题：We enjoy _____ (camping) in summer.99、What do we call the act of designing buildings?A. ArchitectureB. EngineeringC. ConstructionD. Planning答案:A100、填空题：A _____ (水生植物) can live in ponds and lakes.。
“PEP”2024年小学六年级上册第八次英语第2单元暑期作业
“PEP”2024年小学六年级上册英语第2单元暑期作业考试时间：80分钟（总分:120）B卷考试人：_________题号一二三总分得分一、选择题(共计20题，共40分)1、How many states are in the USA?A. 50B. 52C. 48D. 512、选择题：What is the sum of 3 + 7?A. 9B. 10C. 11D. 123、What is the term for the study of the universe's origin and evolution?A. CosmologyB. AstrophysicsC. AstronomyD. Meteorology4、What do you call the process of water falling from the sky?A. PrecipitationB. EvaporationC. CondensationD. Sublimation5、What do we call the study of weather patterns?A. MeteorologyB. ClimatologyC. GeographyD. Astronomy6、What is the shape of a stop sign?A. CircleB. TriangleC. SquareD. Octagon7、How many days are there in a week?A. FiveB. SixC. SevenD. Eight8、How many months have 31 days?A. SevenB. EightC. NineD. Ten9、How many days are there in a week?A. 5B. 7C. 10D. 1210、What is the capital of Iceland?A. ReykjavikB. AkureyriC. KeflavikD. Egilsstadir11、Which of these is a common dessert?A. SaladB. CakeC. SoupD. Pizza12、选择题：What is the name of the famous mountain in Italy?A. Mount FujiB. Mount KilimanjaroC. Mount EtnaD. Mount Everest13、What do we call a person who plays sports?A. AthleteB. CoachC. RefereeD. Fan14、What is the name of the first human to walk on the moon?A. Neil ArmstrongB. Buzz AldrinC. Michael CollinsD. Yuri Gagarin15、选择题：What do we call a large area with many trees?A. ParkB. ForestC. GardenD. Field16、What do we call the force that opposes motion?A. GravityB. FrictionC. TensionD. Compression17、What do you call the place where you can borrow books?A. BookstoreB. LibraryC. SchoolD. Office18、What is the first letter of the alphabet?A. AB. BC. CD. D19、What is the term for a baby cow?A. CalfB. FoalC. KidD. Lamb20、What is the process of changing from a caterpillar to a butterfly called?A. MetamorphosisB. DigestionC. ReproductionD. Migration二、听力题(共计20题，共40分)1、听力题：I have a ___ (funny) story to tell.2、听力题：My friend is ______ (tall) and smart.3、听力题：I like to _____ (闪烁) lights.4、听力题：I found a ________ on the floor.5、听力题：A __________ is a natural park.6、听力题：A chemical reaction that occurs spontaneously releases _____ (energy).7、听力题：Salt can be formed by the reaction of an acid and a _____ (base).8、听力题：The Berlin Wall divided _______ into East and West.9、听力题：The animal that is known for its shell is a ______.10、听力题：A reaction that produces carbon dioxide is an indicator of a ______ reaction.11、听力题：The bear searches for food in the forest during ____.12、听力题：A light year is a unit of ______ used in astronomy.13、听力题：The __________ is a famous area known for its cultural exchanges.14、听力题：A ____ is a large animal that can be trained to work.15、听力题：The ____ has a unique tail and likes to climb trees.Light travels in straight ______.17、听力题：He is _____ (tall) and kind.18、听力题：I love to ___ (travel/study) new places.19、听力题：A solution that has an equal concentration of hydrogen ions and hydroxide ions is ________.20、听力题：The __________ is the layer of the earth we live on.三、填空题(共计20题，共10分)1、 (Pilgrims) settled in America in 1620. 填空题：The ____2、填空题：古代的________ (cultures) 通过艺术和建筑展示自己的价值观。
“人教”2024年小学上册第八次语文第4单元暑期作业(含答案)
“人教”2024年小学上册语文第4单元暑期作业(含答案)考试时间：90分钟（总分:100）B卷一、综合题(共计100题)1. 夏天的晚上，星星特别____。
答案：明亮2. 阅读理解填空题：春天的小草从土里钻出来，给大地增添了_______。
3. 我喜欢和朋友一起去____（sàn）步，享受大自然的美好。
答案：散4. 小朋友们在操场上______。
答案：玩耍5. 哪颗星球被认为可能有生命存在？A. 水星B. 火星C. 木星D. 天王星6. 四面边声连角起，_______一声何不吟。
答案：千7. 哪个国家被称为“多岛国家”？A. 加拿大B. 日本C. 印度D. 菲律宾8. 白马湖边草，_______自有幽香。
答案：湿9. 我们应该多做____。
答案：运动10. 我们的班级是一个____的集体。
答案：团结11. 我们要保护____，不让它受污染。
答案：环境12. 青山绿水，_______如画。
答案：美13. 妈妈给我讲了一个____故事。
答案：有趣的14. 我们要爱护____。
答案：动物15. 宇宙中的生命形式是否普遍存在？A. 存在B. 不存在C. 尚无定论D. 只在地球存在16. 请填写反义词：后面—（_________）17. 在太空中，宇航员通常使用什么方式移动？A. 步行B. 游泳C. 推进器D. 飞行器18. 秋天来了，树叶____（huā）了，地上铺满了金色的____（yè）。
答案：花叶19. 长安古意，_______千年一瞬。
答案：犹20. 地球的公转轨道呈现什么形状？A. 圆形B. 椭圆形C. 直线D. 三角形21. 可见光的波长范围是多少？A. 100-400纳米B. 400-700纳米C. 700-1000纳米D. 1000-1500纳米22. 人闲桂花落，_______月正圆。
答案：夜23. 月球的表面有很多坑洞，这些坑洞主要是由于什么造成的？A. 水流B. 风蚀C. 陨石撞击D. 火山爆发24. 阅读理解填空题：小朋友们在夏令营中学习如何_______，他们搭建了帐篷，还学会了生火。
重庆八中宏帆初级中学校2022—2023学年九年级上学期第八次数学作业
11月27日数学作业A 卷一、选择题（本大题共10个小题）在每个小题的下面，都给出了代号为A 、B 、C 、D 的四个答案，请将正确答案的代号填涂在答题卡上的相应位置．．．．．．．．．． 1．下列不等式中，是一元一次不等式的是（ ） A ．2x ﹣y ＞1B ．6+3＞5C ．1x ＞2D ．y +2＜﹣52．直线1y x =+与x 轴的交点坐标是（） A ．(1,0)B ．(1,0)- C ．(0,1)D ．(0,1)-3．在数轴上表示不等式x ≥﹣2的解集正确的是（ ） A ． B ．C ．D ．4．若m n >，则下列不等式一定成立的是（ ） A ．11m n +<+B ．22m n -<-C ．33m n > D ．44m n ->-5．甲种蔬菜保鲜适宜的温度是1~5C ，乙种蔬菜保鲜适宜的温度是3~8C ，将这两种蔬菜放在一起同时保鲜，适宜的温度是（ ）A ．1~3CB ．3~5CC ．5~8CD ．1~8C6．《九章算术》是我国古代一部著名的算书，它的出现标志着中国古代数学形成了完整的体系．其中卷八方程[七]中记载：“今有牛五、羊二，直金十两；牛二、羊五，直金八两．问牛、羊直金几何？”译文：“假设有5头牛、2只羊共值金10两；2头牛、5只羊共值金8两．问每头牛、每只羊各值金多少两？”设每头牛值金x 两，每只羊值金y 两，那么下面列出的方程组中正确的是（ ）A ．10258x y x y +=⎧⎨+=⎩B ．52810x y x y +=⎧⎨+=⎩C ．5282510x y x y +=⎧⎨+=⎩D ．5210258x y x y +=⎧⎨+=⎩7．关于x 的不等式12﹣3x ＞0的非负整数解共有（ ）个． A ．3 B ．4 C ．5 D ．68．若x y 、满足方程组4822x y x y -=⎧⎨+=⎩，则x y -的值为（）A ．－2B ．－1C ．1D ．29．将点P (b a b a -+,)向右平移2个单位,再向上平移4个单位,得到的点的坐标是(2,3)，则点(b a ,)落在（ ） A ．第一象限B ．第二象限C ．第三象限D ．第四象限10．（多选题）一次函数1y mx n =+与2y x a =-+的图象如图所示，则下列判断中 正确的（ ）A ．方程0=+n mx 的解是2=xB ．1y 随x 的增大而增大C ．000＞，＜，＞a n mD ．的解集为x>3 二、填空题（本大题共4个小题）请将每小题的答案填在答题卡中对应的横线上．．．．．．．．．．． 11．已知函数3y x =-，则自变量x 的取值范围是．12．若关于x 的不等式1x a ->的解集是4x <，则a = ．13．已知不等式（m ﹣1）x |m |+2＞6是关于x 的一元一次不等式，则m 的值为 ． 14．一个两位数，个位数比十位数大5，如果把这个两位数的位置对换，那么所得的新数与原数的和是143，这个两位数是．15．如图，5个大小形状完全相同的长方形纸片，在直角坐标系中摆成如图图案， 已知(8,5)B -，则点A 的坐标是 ．三、解答题（本大题共5个小题）解答时每小题必须给出必要的演算过程或推理步骤，画出必要的图形（包括辅助线），请将解答过程书写在答题卡中对应的位置上．．．．．．．．．．． 16．计算（1）202x y x y -=⎧⎨+=⎩（2）⎪⎩⎪⎨⎧=--=-143)1(4)2(3yx y x17．解下列不等式，并把解集在数轴上表示出来. （1）;1213+<-x x （2）145261≥--+y y .18．已知满足不等式135≤-x 的最小正整数解是关于x 的方程)1(4)9(+=+x x a 的解，求代数式12+a 的值．mx n x a +<-+19．如图,直线1l 的解析式为x y 31=，直线2l 与y 轴交于点A (0,24)，与直线1l 交于点B (18,)m . （1）求AB 所在直线的解析式；（2）点C 为1l 上一点，横坐标为6，过点C 作CD y ∥轴交直线2l 于点D ，求ACB ∆的面积.20．为优选品种，提高产量，某农业科技小组对甲、乙两个水稻品种进行种植对比实验研究．去年甲、乙两个品种各种植了100亩．收获后甲、乙两个品种的售价均为2.8元/千克，且甲的平均亩产量比乙的平均亩产量低100千克，甲、乙两个品种全部售出后总收入为644000元． （1）请求出甲、乙两个品种去年平均亩产量分别是多少；（2）今年，科技小组加大了水稻种植的科研力度，在甲、乙种植亩数不变的情况下，预计甲、乙两个品种平均亩产量将在去年的基础上分别增加20a 千克和10a 千克由于甲品种深受市场的欢迎，预计售价将在去年的基础上每千克上涨0.05a 元，而乙品种的售价将在去年的基础上每千克下降0.1a 元．甲、乙两个品种全部售出后总收入将在去年的基础上增加7600元．求a 的值．B 部分四、填空题：请将每小题的答案填在答题卡中对应的横线上．．．．．．．．．．． 21．若点关于轴的对称点在正比例函数的图象上，则的值为． 22．已知关于x 的不等式20x m +>﹣有3个自然数解，则m 的取值范围是 ．23．如图，在平面直角坐标系内依次摆放着若干个等腰直角三角形，其中，直角顶点 ，，，321A A A 在x (1,2)M y (54)y k x =+k轴正半轴上，顶点 ，，，321B B B 在第一象限内，且()()()() ，，，，，，，，4103623114321B B B B ，则第八个等腰直角三角形在第一象限的顶点8B 的坐标为.第23题图第24题图24．如图，在△ABC 中，BC =22，∠ABC =45°，ABC ECB ∠=∠21，BD ⊥CD ，则2BD = ． 25．某商家将蓝牙耳机、多接口优盘、迷你音箱共22个，搭配为A ，B ，C 三种盲盒各一个．其中A 盒中有2个耳机，3个优盘，1个音箱；B 盒中耳机与音箱的数量之和等于优盘的数量，耳机与音箱的数量之比为3：2；C 盒中有1个耳机，3个优盘，2个音箱．经核算，A 盒的价值为145元，B 盒的价值为245元，则C 盒的价值为 元．五、解答题:解答时必须给出必要的演算过程或推理步骤，请将解答过程书写在答题卡中对应的位置上．．．．．．．．．．． 26．阅读材料：善于思考的小强同学在解方程组2534115x y x y +=⎧⎪⎨+=⎪⎩时，采用了一种“整体代换”解法：解：将方程②变形：4x +10y +y ＝5，即2（2x +5y ）+y ＝5…③， 把方程①代入③得：2×3+y ＝5即y ＝﹣1，把y ＝﹣1代入方程①，得x ＝4，所以方程组的解为{41x y ==-．请你解决以下问题（1）模仿小强同学的“整体代换”法解方程组{2376511x y x y -=-=； （2）已知x ，y 满足方程组222231135949x xy y x xy y ⎧++=⎨-+=⎩； ①求xy 的值；②求出这个方程组的所有整数解．① ②27．如图1所示，腰长为3的等腰Rt△AOB的腰与坐标轴重合，直线y=23x与AB交于点C．（1）求点C的坐标；（2）如图2，将直线OC沿y轴正方向平移4个单位长度得到直线DE（其中D、E分别为新直线与y轴、x轴的交点），连接DC、CE，求△CDE的面积；（3）如图3，在第（2）问的条件下，将△AOB沿x轴平移得到△NKM，连接DN、DM，当△DMN为等腰三角形时，请直接写出点M的坐标．28．已知如图，在Rt△ABC中，AB=AC，∠A=90°，点D为直线AB上一点，连接CD，将点D绕点C顺时针旋转90°至点E，连接CE，连接BE交直线AC于点F．（1）如图1，若CD平分∠ACB，AC=2，求BD的长；（2）如图2，求证：BF=EF；（3）若AC=2，当BE+CE最小时，直接写出△BCE的面积。
厦门部编2024版小学第八次语文第4单元暑期作业(含答案)
厦门部编2024版小学语文第4单元暑期作业(含答案)考试时间：100分钟（总分:140）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、妈妈给我买了一个____的玩具。
答案：新2、白日依山_______，苍苍云海间。
答案：额3、我爱我的____（xué）校，老师和蔼可亲，学习氛围浓厚。
答案：学校4、我们要保持良好的____。
答案：习惯5、这幅画描绘了一个_______的场景，让人流连忘返。
（答案：美丽）6、月亮绕地球一周所需的时间是多少？A. 7天B. 14天C. 28天D. 30天7、水星的表面特征是怎样的？A. 平坦如镜B. 满是坑洞C. 覆盖着冰雪D. 布满草木8、请填写反义词：胖 — （_________）9、白云千载_______，苍狗七十年。
答案：悠悠10、我们要珍惜每一个____。
答案：机会11、哪些天体可以形成行星？A. 恒星和星云B. 行星和彗星C. 星云和尘埃D. 只有星星12、白雪_______，皑皑东山。
答案：纷纷13、我们要保持校园的____。
答案：整洁14、填空题：小朋友们在草地上_______，追逐嬉戏。
15、他是一位非常____的老师。
答案：和蔼16、听力填字：每当节日来临，家家户户挂上_______。
17、小朋友们在草地上____。
答案：追逐18、夏天的海边，沙滩上总是_______，人们尽情享受阳光。
（答案：热闹）19、填空题：在课堂上，我们要认真_______老师讲课。
20、阅读理解填空题：小姑娘在海边捡到了一颗_______，她决定把它作为_______。
21、造句：这次旅行我们看到了很多美景，__________海滩，__________山脉都让人流连忘返。
22、阅读理解填空题：小朋友们在春游时，带上了_______，大家一起分享食物，快乐无比。
23、小朋友们在草地上____。
答案：追逐24、我们要保护____，让地球更美丽。
小学上册第八次英语第二单元暑期作业(含答案)
小学上册英语第二单元暑期作业(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.Which animal is known as the "King of the Jungle"?A. ElephantB. LionC. TigerD. Bear2.What substance do bees produce?A. NectarB. WaxC. HoneyD. All of the above答案:D3.I enjoy visiting the ________ (艺术中心) for inspiration.4.The _____ (sand/gravel) is warm.5.What is the capital city of Canada?A. TorontoB. OttawaC. VancouverD. Montreal答案:B6.Which animal is known for its ability to jump high?A. FrogB. LizardC. SnakeD. Fish答案:A7.My dad is ________ a car.8.I like to ________ (research) topics of interest.9.Metals conduct __________ well.10. A ____(local action plan) addresses specific community needs.11.My dad is my strong _______ who teaches me important lessons in life.12.The _______ of light can be tested using a laser.13.The raccoon is known for its _________. (聪明)14.Which of these is a vegetable?A. AppleB. BananaC. CarrotD. Grape答案:C15.She is wearing ___. (glasses)16. A __________ (化学实验) helps illustrate scientific principles.17.What is the opposite of ‘begin’?A. StartB. CommenceC. EndD. Continue18.What is the name of the famous explorer who discovered America?A. Marco PoloB. Christopher ColumbusC. Ferdinand MagellanD. Vasco da Gama答案:B Christopher Columbus19.There are many ________ (岛) in the ocean.20. A solution that contains a large amount of solute is said to be _______.21.The gerbil is a type of _______ (宠物) rodent.22.My brother is very __________ (自信).23.My dad is a great __________ (支持者) of my interests.24.I like to ______ (参与) in group activities.25.The __________ is a large area known for its volcanoes.26.This boy, ______ (这个男孩), is learning to code.27.What is the main ingredient in a salad?A. BreadB. VegetablesC. RiceD. Cheese28.The ancient Greeks held the Olympic Games to honor ________ (宙斯).29.My uncle has a big ______ (狗). It likes to go for long ______ (散步).30.n be very _________. (长) Snakes d31.The capital of Egypt is _____.32.What do we call the act of giving someone money for a service?A. PaymentB. DonationC. CompensationD. Gift答案:A33. A rabbit's ears can rotate independently to detect ________________ (声音).34.She has a ________ (skill) in communication.35.My cousin is a great ____ (chef).36. A suspension is a mixture where particles are _____ in a liquid but not dissolved.37. A bumblebee is important for _______ (授粉).38.I like to share my toy ________ (玩具名称) with my family.39.My sister has a keen interest in __________ (天文学).40.We celebrate _______ together.41.My toy ____ can change colors! (玩具名称)42.The ______ (植物的营养需求) varies greatly between species.43.My mom is a __________ (心理健康顾问).44.The garden is full of lovely _______ that bloom brightly.45.What do you call the natural satellite that orbits the Earth?A. StarB. SunC. MoonD. Planet答案:C46.Mount Everest is part of the _____ Mountain Range.47.The baby is ________ in the crib.48.His hair is ________.49.The ancient Mesopotamians created one of the first written ______ (语言).50.The first successful vaccine was developed for ______ (天花).51.The __________ is a major river in Brazil. (亚马逊河)52.My favorite type of dance is ______.53.The _____ (蜗牛) leaves a slimy trail behind.54.The periodic table organizes elements by their ______.55.Which animal can swim?A. DogB. CatC. FishD. Bird答案:C56.What do we call the sound a rooster makes?A. CluckB. Cock-a-doodle-dooC. QuackD. Moo57.What is the natural habitat of penguins?A. ForestB. DesertC. Polar RegionsD. Ocean58.My mom loves to decorate our ____ (home).59.The pumpkin is _______ (orange).60.They are ___ a game. (playing)61.What instrument is used to look at distant objects?A. MicroscopeB. TelescopeC. StethoscopeD. Barometer62.My brother is interested in ____.63.What do you call a house made of ice?A. IglooB. CastleC. HutD. Cabin答案:A64.The park is ________ (热闹).65.My brother is a ______. He enjoys playing basketball.66.My ______ is a great cook and loves to bake.67.The capital of Armenia is _____.68.I have a ___ (pet/animal) at home.69.The ________ (生态建设) is vital for health.70.The gas that is produced when vinegar is heated is ______.71.Penguins waddle when they _______.72.What is the capital of Portugal?A. LisbonB. MadridC. RomeD. Paris答案:A73.I enjoy playing with my toy ________ (玩具名称) in the pool.74. A solution that is uniform throughout is called a _______ mixture.75.What do you call a group of ants?A. ColonyB. SwarmC. FlockD. Pod答案:A76.What is the opposite of 'full'?A. EmptyB. CompleteC. WholeD. Packed77.Which of these animals can fly?A. FishB. BirdC. DogD. Cat78.The golden age of Athens was during the ________ (公元前5世纪).79.The invention of the calculator changed how people _____.80.The ____ has a long snout and loves to sniff around.81.We have a ______ (丰富的) calendar of events.82.My ______ loves to create new recipes.83.The ________ (边界) separates two countries.84.What is the name of the famous beach destination in Florida known for its theme parks?A. MiamiB. OrlandoC. Key WestD. Fort Lauderdale答案:B Orlando85.My teacher is very __________ (专注).86.What is the name of the festival celebrated in October?A. ChristmasB. HalloweenC. ThanksgivingD. New Year87.The snow is ______ (white) and fluffy.88. A rabbit can eat ______ (胡萝卜) and lettuce.89.The ______ provides valuable insights into literature.90.What is the term for a baby rabbit?A. KitB. PupC. CalfD. Chick答案:A91.An electromagnet can be turned on and off with ______.92.The ancient Greeks invented the _______ to measure time. (日晷)93.What do we use to tell time?A. CalendarB. ClockC. WatchD. Both B and C94.What is the name of the process by which plants make their food?A. DigestionB. PhotosynthesisC. RespirationD. Fermentation95.What is the main ingredient in pasta?A. RiceB. WheatC. CornD. Barley答案:B96.My brother is ______ years old. (我哥哥______岁。
第5678次作业 答案操作系统 大学课程 作业
i第五次作业书上的作业9.2内部碎片与外部碎片之间的区别？答：一个作业占据了一个内存区域或者页，但是其中的一部分没有使用，把没有使用的部分称为内部碎片。
内部碎片不会被操作系统或者其他进程使用，除非这个作业执行完并且释放它所占用的内存区域。
外部碎片是在分区之间存在的不能够被使用的小的内存。
9.5内存按顺序有100k，500k，200k，300k，600k，用首次适应、最佳适应和最差适应如何放置212k，417k，112k，426k的进程？答：（1）首次适应算法212K 放入 500K 的分区417K 放入 600K 的分区112K 放入 288K 的分区(产生新的分区 288K = 500K - 212K)426K 必须等待（2）最佳适应算法212K放入300K的分区417K放入500K的分区112K放入200K的分区426K放入600K的分区（3）最差适应算法212K放入600K 的分区417K放入500K 的分区112K放入388K 的分区426K 必须等待在这个例子中，最佳适应算法是最好的。
9.8假设一个有8个1k页面的逻辑地址空间，映射到一个32个页框的物理内存，问：逻辑地址多少位？物理地址多少位？a. 逻辑地址: 13 bitsb. 物理地址: 15 bits9.14为什么纯分段比纯分页更容易实现共享可充入模块。
答：因为段是基于内存逻辑划分而非物理划分，因此任意长度的段都可以通过段表的一个表项来实现共享。
而对于分页系统来说，只能对每个页实现共享，而页面的大小是固定不变的。
9.16 有段表段基地址长度0 219 6001 2300 142 90 1003 1327 5804 1952 96下面的物理地址是多少？a)0,430; b)1,10; c)2,500; d)3,400;e)4,122答：a. 219 + 430 = 649b. 2300 + 10 = 2310c.地址错误d. 1327 + 400 = 1727e.地址错误补充作业1．在页面大小为4k的系统中，根据图中所示页表，下面的逻辑地址经过重定位之后的物理地址是什么？a)20;b)4100;c)8300答：(a) 49172 (b)57348 (c) 615482．一台计算机为每个进程提供65536字节的地址空间，页面的大小为4k。
8第十七章 光的衍射作业答案
一、选择题 [ B ]1、（基础训练1）在单缝夫琅禾费衍射实验中，波长为λ的单色光垂直入射在宽度为a ＝4 λ 的单缝上，对应于衍射角为30°的方向，单缝处波阵面可分成的半波带数目为（A ） 2 个 （B ） 4 个 （C ） 6 个 （D ） 8 个 【答】已知a ＝4 λ，θ=30°，1sin 4422a λθλ∴=⨯=⨯，半波带数目N = 4. [ C ]2、（基础训练5）一单色平行光束垂直照射在宽度为1.0 mm 的单缝上，在缝后放一焦距为2.0 m的会聚透镜。
已知位于透镜焦平面处的屏幕上的中央明条纹宽度为2.0 mm ，则入射光波长约为（A ）100 nm （B ）400 nm （C ）500 nm （D ）600 nm 【答】中央明条纹宽度为2, 5002x ax fnm afλλ∆⋅∆≈∴== [ B ]3、（基础训练6）一束平行单色光垂直入射在光栅上，当光栅常数（a + b ）为下列哪种情况时（a代表每条缝的宽度），k =3、6、9 等级次的主极大均不出现？（A ）a ＋b =2 a （B ）a ＋b =3 a （C ）a ＋b =4 a （A ）a ＋b =6 a【答】光栅缺级：()sin sin 'a b k a k θλθλ+=⎧⎨=⎩，缺级的主极大的级次为',2,3,...a b a b a b a bk k a a a a++++==，k 应为整数，依题意，k=3,6,9缺级，所以a+b=3a 符合。
[ D ]4、（基础训练10）孔径相同的微波望远镜和光学望远镜相比较，前者分辨本领较小的原因是 （A ） 星体发出的微波能量比可见光能量小 （B ） 微波更易被大气所吸收 （C ） 大气对微波的折射率较小 （D ） 微波波长比可见光波长大 【答】分辨本领为11.22RdR θλ==，孔径d 相同时，R 与波长λ成反比关系。
微波波长比可见光波长大，所以微波望远镜分辨本领较小。
北航大一上c语言第四五六七八次作业
3. 字母频率统计【问题描述】编写程序从标准输入中读入一段英文，统计其中小写字母出现次数，并以柱状图的形式显示其出现次数。
【输入形式】在标准输入上输入一段英文文章（可能有一行，也可能有多行），在新的一行的开头输入ctrl+z键表示结束。
【输出形式】在屏幕上依次输出表示每个小写字母出现次数的柱状图（以“*”字符表示柱状图，空白处用空格字符表示，某个小写字母出现多少次，就显示多少“*”字符；柱状图的高度以出现最多的字母次数为准），在最后一行依次输出26个小写字母。
【样例输入】The computing world has undergone arevolution since the publication ofThe C Programming Language in 1978.【样例输出】【样例说明】在输入的英文短文中，小写字母a出现了6次，所以其上输出了6个字符"*"。
出现次数最多的是字母n，所以柱状图的高度为9个字符。
字母j没有出现，所以其上都为空格字符。
【评分标准】该题要求输出柱状图表示的字母出现次数，共有5个测试点。
上传C语言文件名为bar.c。
【输入形式】从标准输入读取顶点坐标。
格式为：第一行是点的个数N（3≤N≤15），后面紧接着N 行，每行两个数字（由空格隔开），分别表示该点的X、Y坐标（0≤X，Y≤32767）。
所有点的坐标互不相同，且按顺时针次序给出。
输入数据确保该多边形是一个凸多边形。
【输出形式】向标准输出打印一个浮点数，是该多边形的面积。
该浮点数保留两位小数。
【输入样例】 43 330101 2【输出样例】5.00【样例说明】输入数据表示了如图所示的四边形。
其面积为5.00。
提示：求三角形面积可用海伦公式，求平方根可用<math.h>头文件中定义的sqrt函数。
【评分标准】结果完全正确得20分，每个测试点4分。
提交程序名为：points.c。
厦门2024年07版小学三年级上册第八次英语第4单元暑期作业(含答案)
厦门2024年07版小学三年级上册英语第4单元暑期作业(含答案)考试时间：80分钟（总分:120）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 bus is ______ at the stop. (waiting)2、填空题：I have a ________ (滑板) that I practice tricks on.3、听力题：A chemical bond involves the attraction between positively and negatively charged_____.4、选择题：What do we call the study of living organisms?A. BiologyB. AstronomyC. ChemistryD. Physics5、填空题：I love to _______ (唱歌) in the shower.6、填空题：I have a ________ that I can cuddle with.7、填空题：We can make a ________ from clay.8、D. HamsterWhat color do you get when you mix red and white?A. PinkB. PurpleC. Brown9、填空题：My _____ (朋友) always helps me.10、填空题：The athlete practices _____ (运动) to stay fit.11、What do we call a large tree that grows in the rainforest?a. Bushb. Shrubc. Palmd. Canopy答案:d12、填空题：The ________ grows tall and flowers beautifully.13、填空题：I enjoy collecting __________ after it rains. (雨滴)14、听力题：The ______ helps with the movement of the heart.15、听力题：I see a __ in the park. (cat)16、听力题：The chemical formula for copper sulfate is _______.17、What is the capital city of Kosovo?A. PristinaB. GjakovaC. MitrovicaD. Ferizaj18、填空题：I enjoy playing games with my __________. (家人)19、填空题：The __________ (历史的情感纽带) foster connections.20、填空题：The ______ (植物的交互作用) with animals is complex.21、What do you call the main character in a fairy tale?A. VillainB. HeroC. ProtagonistD. Antagonist答案: C22、填空题：My ________ (玩具名称) inspires me to dream big.23、What do you call the large, fluffy clouds?A. CumulusB. StratusC. CirrusD. Nimbus24、ts are _____ (外来物种) that can be invasive. 填空题：Some pla25、填空题：My dad is a great __________ (动力) in my life.26、听力题：The capital of Turkey is _______.27、What is the term for animals that are active at night?a. Diurnalb. Nocturnalc. Crepusculard. Seasonal答案:b28、听力题：I like to ______ puzzles on rainy days. (solve)29、填空题：The __________ (化学稳定性) of a substance refers to its resistance to change.30、Which month comes after January?A. FebruaryB. MarchC. AprilD. December31、听力题：The city of Jakarta is the capital of _______.32、填空题：The woodpecker pecks on ______ (树木).33、听力题：Heat can cause a substance to ______.34、填空题：We can see many ________ (动物) in their natural habitats.35、What is the capital of Japan?A. SeoulB. BeijingC. TokyoD. Bangkok36、填空题：A _______ (小花猫) loves to play with string.37、听力题：The chemical symbol for yttrium is _____.38、What is the primary ingredient in hummus?A. LentilsB. ChickpeasC. PeasD. Beans答案:B39、听力题：A _______ can help to measure the intensity of sound in different conditions.40、听力题：The chemical formula for potassium nitrate is ______.41、Which animal is known for its trunk?A. LionB. ElephantC. GiraffeD. Zebra答案:B42、What do we call the main character in a story?A. VillainB. AntagonistC. ProtagonistD. Narrator答案:C43、Which animal is known for carrying its house?A. SnailB. RabbitC. SquirrelD. Fox44、填空题：A cow's role on the farm is primarily for ________________ (生产牛奶).45、What is the name of the famous American national park known for its rock formations?A. YosemiteB. ArchesC. Grand CanyonD. Yellowstone答案:B46、What is the term for the apparent motion of planets against the background stars?A. Retrograde MotionB. Direct MotionC. Orbital MotionD. Celestial Motion47、In which month do we celebrate Christmas?A. NovemberB. DecemberC. JanuaryD. October48、What do you call the study of the Earth's physical features?A. BiologyB. GeographyC. GeologyD. Astronomy答案:B49、What is the name of the famous American actress known for "Ocean's 8"?A. Sandra BullockB. Anne HathawayC. Cate BlanchettD. Rihanna答案：A50、填空题：The ______ (植物的生长需求) vary by species.51、填空题：I like to keep a diary to write about my _______ (日常). It helps me remember special _______ (时刻).52、听力题：The dog is ______ near the door. (sitting)53、What is a baby frog called?A. ChickB. TadpoleC. CubD. Pup54、听力题：I love to _____ in the garden. (play)55、填空题：The turtle swims slowly in the _________. (水)56、填空题：My dog loves _______ (去公园) for walks.57、听力题：The __________ is where most biological activity occurs.58、听力题：I like to ______ my friends at the park. (meet)59、填空题：A sunny afternoon is perfect for ______ (晒太阳).60、填空题：The ______ (果核) of a peach is hard and protects the seed.61、填空题：I love watching _____ (海豚) play in the ocean.62、填空题：My teacher always encourages us to _______ (动词) and ask questions in class. It is very _______ (形容词).63、What is the name of the famous American holiday celebrated on October 31?A. HalloweenB. ThanksgivingC. ChristmasD. New Year's Eve答案:A64、选择题：What is the capital of Finland?A. HelsinkiB. EspooC. TampereD. Vantaa65、听力题：A chemical reaction can lead to a change in ______ state.66、听力题：A chemical reaction that releases heat is called ______.67、What is the name of the famous island in Greece?A. SantoriniB. MykonosC. CreteD. All of the above答案: D. All of the above68、选择题：What do we call a person who studies astronomy?A. AstronomerB. AstrophysicistC. CosmologistD. All of the above69、填空题：My ________ (玩具) is perfect for outdoor play.70、听力题：The dog is _____ (sleeping/eating).71、听力题：His favorite game is ________.72、填空题：My mom loves __________ (举办聚会).73、填空题：I love to travel to ______.74、听力题：A ______ can help restore habitats.75、填空题：The __________ (博物馆) has many interesting exhibits.76、sustainable transit) options encourage eco-friendly travel. 填空题：The ____77、填空题：Parrots like to eat ______ (坚果).78、environmental monitoring) tracks ecosystem health. 填空题：The ____79、填空题：The _____ (poppy) is often red in color.80、What do you call a place where you can see animals?A. ZooB. FarmC. AquariumD. Circus答案:A81、填空题：My friend loves __________ (探险) in nature.82、听力题：His favorite game is ________.83、听力题：The cat is _______ (curled) up on the couch.84、填空题：My sister's favorite activity is _______ (名词). 她总是 _______ (动词).85、填空题：The ______ (植物) kingdom includes trees, flowers, and bushes.86、What do we call the season when leaves fall from trees?A. SpringB. SummerC. FallD. Winter87、听力题：The age of a rock can be determined through ______ dating methods.88、填空题：________ (植物食物链) supports ecosystems.89、小蟋蟀) sings a lovely song. 填空题：The ___90、填空题：The _____ (pinecone) falls from pine trees.91、What is the name of the current U.S. president?A. George W. BushB. Barack ObamaC. Joe BidenD. Donald Trump答案:C92、听力题：The Earth's crust is made up of both igneous and ______ rocks.93、填空题：The turtle is hiding in its ______.94、Which fruit is known for being very sweet and tropical?a. Appleb. Mangoc. Lemond. Kiwi答案:B95、听力题：I like to sing ______ (loudly) in the shower.96、填空题：I play games with my __________. (朋友)97、填空题：The __________ (历史的交织) creates unity.98、填空题：The _____ (滑翔机) glides through the air.99、What do we call a scientist who studies the ocean?A. OceanographerB. BiologistC. ChemistD. Geologist答案:A. Oceanographer100、填空题：A _____ (小羊) loves to frolic in the grass.。