假期作业(4)答案

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2022年六年级上册数学长江作业答案

2022年六年级上册数学长江作业答案2022年六年级上册数学寒假作业答案篇1寒假已至，同学们想好要如何安排了吗?今天六年级的同学有福了，小编提供数学寒假作业答案，供大家参考。

一.填空题1. b;a2. 3,5,7;4,6,8,10;93. 2104. 605. (1)1;11;3;9;5;7(2)2;10;4;8;6;6(3)4;8(4)5;76. 36;36=2×2×3×37. 701(700=1×700)8. 4(设乙数是x，则甲数是6x+2，丙数是6(6x+2)+2，所以有x+6x+2+6(6x+2)+2=188，解得x=4)9. 2;4;1;0;010. 1和21;3和19;5和17;7和15;9和13(任选三组)11. 3212. 1413. 等14.15. 2.5(20÷ × =2.5)16.二.选择题1. A;B2. B(1+2=3)3. B(3,5,11,17,29)4. A5. D6. A7. B8. B(18+30=48)9. D(1000-142-76+10=792)10. D ([4,6,8]=24)三.计算题1. 22. 23四.解答题1. 90=1×90=2×45=3×30=5×18=6×15=9×10所以有6种，分别是1和90，2和45，3和30，5和18，6和15，9和102. 336=2×2×2×2×3×7=6×7×86+7+8=213. (1)260=2×2×5×13所以这两个数是4和65(2)420=2×2×3×5×7所以这两个数是4和105，12和35，15和28，20和214. (1)(2)5. 略6. (1)48=2×2×2×2×3所以A=3，B=12(2)略7. (1)16=3+13=5+11=7+9所以这样的最简分数有6个，(2)11个，8. 一种情况：2022年六年级上册数学寒假作业答案篇2小编又来给大家分享寒假作业的答案了，为了减少一点儿寒假作业给各位小朋友带来的困扰，小编这里为大家整理出了寒假作业的答案。

2022-2023学年九年级语文人教部编版寒假作业(4)(含答案)

寒假作业（4）——2022-2023学年九年级语文人教部编版1.选出对刘禹锡《酬乐天扬州初逢席上见赠》赏析有误的一项（）酬乐天扬州初逢席上见赠巴山楚水凄凉地，二十三年弃置身。

怀旧空吟闻笛赋，到乡翻似烂柯人。

沉舟侧畔千帆过，病树前头万木春。

今日听君歌一曲，暂凭杯酒长精神。

A.诗人被贬官在外多年，回京路上思怀往事，展望将来，诗中流露出心绪难平但又不乏刚健昂扬之气。

B.诗中第二联运用两个典故，写出了孤身归来后的感触，既有旧友离世的悲痛，又有物是人非、恍如隔世的无限怅惘。

C.诗人将自己比作“千帆”“万木”，与“沉舟”“病树”两两相对，表现了天地万物新陈代谢、生生不息的活力，是诗人乐观精神的写照。

D.诗作的结尾，点明酬答之意，回应首联，扣住诗题，既有对友人白居易的感谢之情，也表达了共勉之意。

2.对下面这首诗赏析不正确的一项是（）过零丁洋文天祥辛苦遭逢起一经，干戈寥落四周星。

山河破碎风飘絮，身世浮沉雨打萍。

惶恐滩头说惶恐，零丁洋里叹零丁。

人生自古谁无死，留取丹心照汗青。

A.诗歌首联写了个人和国家的两件大事：一是他因科举走入仕途；二是在国家危亡关头，起兵抗元。

B.第二联运用对偶、拟人的修辞手法，写出了国家山河破碎，局势危急，个人命运也历经艰辛危苦，动荡不安。

C.最后一联，直抒胸臆，表明自己以死明志的决心，是千古传诵的名句。

D.全诗概括了作者一生的重大事件，融叙事和抒情言志为一炉，慷慨悲凉，感人至深。

3.阅读下面古诗，完成下面小题。

行路难（其一）李白金樽清酒斗十千，玉盘珍羞直万钱。

停杯投箸不能食，拔剑四顾心茫然。

欲渡黄河冰塞川，将登太行雪满山。

闲来垂钓碧溪上，忽复乘舟梦日边。

行路难，行路难！多歧路，今安在？长风破浪会有时，直挂云帆济沧海。

（1）下列对诗歌的理解和分析错误的一项是（）A.前四句欲扬先抑，极言宴席的华美，反衬诗人内心的苦闷。

B.诗中以“冰塞川”“雪满山”象征人生道路上的艰难险阻，具有比兴的意味。

C.诗中借姜太公和伊尹的典故，进一步抒发诗人政治失意的悲愤之情。

五年级上学期假期数学作业

行知学校2022-2023学年五年级上学期假期作业（四）数学 2022.11.3第一天一、轻松填一填。

1. 2.5+2.5+2.5＝（）×（）。

4.8×4＝（）+（）+（）+（）。

2. 0.57×6的积是（）位小数。

3.把15.6的小数点去掉后，原来的数就扩大到它的（）倍。

4.0.52扩大到原来（）倍是52。

86缩小到原来的（）是0.086。

二、直接写出得数。

0.8×10= 0.06×12= 3.8×9= 1.8×0.04= 0.7×0.6= 3.8×0.4= 5.2×5= 0.16×0.5=二、用竖式计算。

3.2×4.3 =5.4×4.5 = 0.28×0.06 =76×8.33= 5.43×0.9= 0.93×3.9=四、计算下面各题，能简便运算的要简便运算。

7.06×2.4－5.7 2.33×0.5×4 0.65×1053.76×0.25＋25.84.8×0.25 1.2×2.5＋0.8×2.5五、解决问题。

1、实验幼儿园食堂买来豆角和西红柿各16千克，每千克豆角3.4元，每千克西红柿1.6元，买两种菜共花多少钱？2、五（5）班有84名同学合影，定价是28.5元，给5张照片，另外再加印每张2.5元，全班每人要一张,一共需要多少钱？3、小明带60元去超市，她想买8袋牛奶，每袋牛奶4.5元，还想买1份10元的面包。

她带的钱够吗？第二天一、轻松填一填。

1. 通常情况下，竖排叫做( )，横排叫做( )。

确定第几列一般从( )往( )数，确定第几行一般从( )往( )数。

数对的第（）个数字代表行，第（）个数字代表列。

2. 2.如果电影票上的“6排15号”简记作( 15 , 6 )，则“20排10号”记作( , )， ( 12 ，16 )表示( )排( )号。

五年级数学寒假作业（4套）答案

五年级数学寒假作业1答案一、竖式计算一、竖式计算9÷3.75═2.4 22.36÷4.3=5.217÷23≈0.7 3.6÷2.8≈1.29（得数凑整到十分位）（得数凑整到十分位）（得数凑整到百分位）（得数凑整到百分位）二、用递等式计算，能用简便算法的用简便算法0.55×0.55×30.430.4＋0.48×52.5═41.92 （2.1+2.1+2.1+2.1）×12.5═1052.8×2.8×7.57.5＋7.5×7.2═75 0.175÷0.25×4═2.84.6×202═929.2 54÷(3.94+6.86)×0.8═4三、解方程：三、解方程：3(X －4)＋5＝14 2.6X －X －0.1X ＝0.75×0.2 X═7 X═0.111－2.5(X －3)＝10.5 X ÷2－X ÷5＝60X═3.2 X═2004(18－X)＝24 5X －1.8＋1.2＝6.4X═12 X═1.4四、文字题四、文字题1、26.6除以3.5所得的商，再乘以1.2，积是多少？，积是多少？26.6÷3.5×1.2═9.122、4.48除以6.4与4.8的差，商是多少？的差，商是多少？4.48÷（6.4－4.8）═2.8五、应用题五、应用题1、一匹布长22.7米，裁剪成每段裤料长1.2米，最多可以裁剪多少段？还剩下几米？几米？22.7÷1.2═18（段）…… 1.1（米）（米）2、一瓶果汁饮料1.8升，正好倒满15杯，平均每杯多少升？杯，平均每杯多少升？1.8÷15═0.12（升）（升）3、小巧用60元去买几只圆珠笔，每只圆珠笔1.4元，可以买多少只圆珠笔，还余多少元？余多少元？60÷1.4═42（元）…… 1.2（元）（元）4、北京故宫的面积约是72万平方米，比上海人民广场的5倍还多2万平方米，上海人民广场的面积约是多少万平方米？万平方米。

2020年新目标英语八年级上册寒假作业四(含答案)

2020年新目标英语八年级上册寒假作业Unit 4寒假作业一.单项选择（15小题，每小题1分，共15分）1.—Is the young man ________ reporter?—Yes.________ reporter is from a radio station.A.a；AB.the；AC.an；TheD.a；The2.—Here is the ________.What would you like to eat?—I'd like some beef dumplings.A.prizeB.songC.serviceD.menu3.—The math teacher is pretty friendly.—Yes.I'm sure ________ likes him very much.A.someoneB.anyoneC.everybodyD.no one4. A park is the best place ______ kites. I often go there at weekends.A.flyB.flyingC.to flyD.flies5.Hong Kong is very ______ , so it is difficult to park the car.A.crowdedB.closeC.dirtyD.clean6.—I can't believe it. Tony has invented a tree-planting machine. —Really? He is so _____.A.shyB.rudeC.creativeD.friendly7.Molly is________girl of the three.A.most outgoingB.more outgoingC.the most outgoingD.outgoing8. Our home is close ________ our school.A.toB.ofC.onD.about9.Of all the students, Jenny danced ____ in the talent show. She own first prize.A. goodB. wellC. betterD. best10.Town Cinema ________ the most popular and _______the best sound.A.is, hasB.is, isC.has, hasD.has, is11.In order to keep quiet, please go into or out of the library________ .A.friendlyB.quietlyfortablyD.beautifully12. An Indian or a Chinese meal? It is __________ you.A.is up toB.up toC.forD.of13. Cheng Long and Li Lianjie have much ____. And they often play similar roles in the movies.A.in generalB.in styleC.in commonD.in shape14. Parents usually _______ a role in _______ their kids.A.play,helpingB.make, helpingC.play,helpD. make,help15.—Can you help me with the housework after breakfast?—________.A.Good ideaB.No problemC.Here you areD.Sounds great二.完形填空（10小题，每小题1.5分，共15分）The 2013 Talent Show in our school was a night to remember! It was agreat 16 Students, parents and teachers 17 , sang and playedinstruments. There were more than thirty 18 . Our English teacher Jason Cruise 19 an English song. He won the prize 20 the best performer. 21 a reporter from our school magazine interviewed him, he said that singingwas 22 important to him. The prize for the funniest act 23 to Paul Black, because he danced like a drunken (喝醉的) man without music. And hisclassmates said he was the 24 boy in the class.Many thanks to the parent and the student volunteers. They madethis 25 show possible. Many thanks to all of the people who helped.16.A.success B.interest C.hobby D.dream17.A.said B.walked C.taught D.danced18.A.plays B.games C.acts D.lessons19.A.knew B.sang C.listened D.learned20.A.with B.of C.for D.on21.A.Before B.When C.If D.However22.A.anything B.nothing C.everything D.something23.A.wanted B.went C.asked D.had24.A.worst B.easiest C.funniest D.dullest25.A.talent B.talk C.fashion 三.阅读理解（10小题，每小题2分，共20分）阅读下面四篇语言材料，然后按文后要求做题。

2022-2023学年高二数学寒假作业四(含答案)

数列（B 卷）寒假作业1.已知数列{}n a 的前n 项和22n S kn n =+，511a =，则k 的值为( ). A.2B.-2C.1D.-12.已知等比数列{}n a 和等差数列{},n b n *∈N ，满足11233532,0,,24a b a a b a b ==>=-=，则6102a b -=( ) A.2-B.1C.4D.63.程大位《算法统宗》里有诗云:“九百九十六斤棉，赠分八子做盘缠，次第每人多十七，要将第八数来言，务要分明依次弟，孝和休惹外人传.”意思为:996斤棉花，分别赠送给8个子女做旅费，从第一个开始，之后每人依次多17斤，直到第八个孩子为止，分配时一定要等级分明，使孝顺子女的美德外传.则第八个孩子分得棉花的斤数为( ) A.65B.176C.183D.1844.已知数列{}n a 是等差数列，且14745a a a ++=，381234a a a ++=，则369369a a a -+的值为( ) A.60B.30C.48D.2165.已知n S 是等比数列{}1n a +的前n 项和，且公比0q >，其中n a ∈Z ，且满足337,14a S ==，则下列说法错误的是( )A.数列{}1n a +的公比为2B.531a =C.22n n S =-D.21n n a =-6.已知各项均为正数的等比数列{}n a ，若543264328a a a a +--=，则7696a a +的最小值为( ) A.12B.18C.24D.327.（多选）设等差数列{}n a 的前n 项和为n S .若30S =，46a =，则下列结论中正确的是( ) A.23n S n n =-B.2392n n nS -=C.36n a n =-D.2n a n =8.（多选）已知等比数列{}n a 的公比为q ，前n 项和为n S ，且满足638a a =，则下列说法正确的是( ) A.{}n a 为单调递增数列 B.639S S = C.369,,S S S 成等比数列D.12n n S a a =-9.若无穷等比数列{}n a 的各项均大于1，且满足15144a a =，2430a a +=，则公比q =__________.10.已知数列{}n a 对任意m ，*n ∈N 都满足m n m n a a a +=+，且11a =，若命题“*n ∀∈N ，212n n a a λ+≤”为真，则实数λ的最大值为_____________.11.已知等比数列{}n a 的公比0q >，其前n 项和为n S ，且236,14S S ==，则数列2211log log nn a a +⎧⎫⎨⎬⋅⎩⎭的前2021项和为___________. 12.已知等比数列{}n a 的前n 项和为n S ，且21n n a S -=. (1)求n a 与n S ； (2)记21n nn b a -=，求数列{}n b 的前n 项和n T . 一元函数的导数及其应用（A 卷）寒假作业1.已知函数2()2ln f x x a x =+的图像在点(1,2)处的切线过点(0,5)-，则实数a 的值为( ) A.3B.-3C.2D.-22.已知函数()(3)e x f x x ax =--在(0,2)上为减函数，则a 的取值范围是( ) A.(,2e)-∞B.(,0)-∞C.(,2)-∞D.24,e ⎛⎫-∞-⎪⎝⎭3.已知函数e ,0,()lg ,0,x x x f x x x ⎧⋅≤=⎨>⎩2()()(1)()g x f x m f x m =-++有4个不同的零点，则m的取值范围为( )A.1,e ⎛⎫-∞- ⎪⎝⎭B.1,0e ⎛⎫- ⎪⎝⎭ C.1,e⎛⎫-+∞ ⎪⎝⎭D.(0,)+∞4.已知()f x 是R 上的单调递增函数，(0,)x ∀∈+∞，不等式ln ln ()(1)1x x f m f f m f x x ⎛⎫⎛⎫-+≤++- ⎪ ⎪⎝⎭⎝⎭恒成立，则m 的取值范围是( ) A.12,e -⎛⎤-∞ ⎥⎝⎦B.2,e⎡⎫+∞⎪⎢⎣⎭C.1,1e ⎛⎤-∞+ ⎥⎝⎦D.11,e⎡⎫-+∞⎪⎢⎣⎭5.若函数()(1)e x f x x ax =--（e 为自然对数的底数）有两个极值点，则实数a 的取值范围是( )A.1,0e ⎛⎫- ⎪⎝⎭ B.(,0)-∞C.1,e⎛⎫-+∞ ⎪⎝⎭D.(0,)+∞6.已知函数2()ln e 2f x x x x x m =-++(e 为自然对数的底数)，若()0f x =在区间1,2e⎡⎫+∞⎪⎢⎣⎭上有两个不相等的实数根，则m 的取值范围为( ) A.(0,)+∞ B.1,e ⎛⎫+∞ ⎪⎝⎭ C.2ln 210,4e -⎛⎤ ⎥⎝⎦ D.2ln 21,4e -⎛⎫+∞ ⎪⎝⎭7.（多选）已知函数2()e 21x f x x x x =---，则( ). A.()f x 的极大值为-1 B.()f x 的极大值为1e-C.曲线()y f x =在点(0,(0))f 处的切线方程为10x y --=D.曲线()y f x =在点(0,(0))f 处的切线方程为10x y ++=8.（多选）对于函数3211()32f x x x cx d =+++，c ，d ∈R ，下列说法正确的是( ). A.存在c ，d 使得函数()f x 的图象关于原点对称 B.()f x 是单调函数的充要条件是14c ≥C.若1x ，2x 为函数()f x 的两个极值点，则441218x x +>D.若2c d ==-，则过点(3,0)P 作曲线()y f x =的切线有且仅有2条9.已知曲线()e a x f x x =在1x =处的切线方程为4e y x b =+，则a b +=___________.10.若定义在R 上的函数()f x 满足()3()0f x f x '->，1e 3f ⎛⎫= ⎪⎝⎭，则不等式3()e x f x >的解集为__________________.答案以及解析1.答案：C解析：由题意可得，当2n ≥时，122n n n a S S kn k -=-=-+，又511a =，9211k ∴+=，可得1k =.故选C. 2.答案：D解析：设等比数列{}n a 的公比和等差数列{}n b 的公差分别为,q d .因为122,0a a =>，所以0q >.由题意得2222q d ⋅=+，又42(22)24q d ⋅-+=，解得2,3q d ==，所以2,31n n n a b n ==-，所以6610222(3101)64586a b -=-⨯⨯-=-=，故选D.3.答案：D解析：根据题意可得每个孩子分得棉花的斤数构成一个等差数列{}n a ，其中公差17d =，项数8n =，前8项和8996S =.由等差数列的前n 项和公式可得1878179962a ⨯+⨯=，解得165a =，所以865(81)17184a =+-⨯=. 4.答案：A解析：设等差数列{}n a 的公差为d ，因为在等差数列{}n a 中，14745a a a ++=①，381234a a a ++=②，所以由②-①可得2453445d d d ++=-，解得1d =-.又1474345a a a a ++==，即415a =，所以14318a a d =-=，所以19n a n =-，所以3693693(193)6(196)9(199)60a a a -+=⨯--⨯-+⨯-=，故选A.5.答案：C解析：根据题意知等比数列{}1n a +的公比为()0q q >，记1n n b a =+，则31238,14b b b b =++=，所以21118,6,b q b b q ⎧=⎪⎨+=⎪⎩解得12,2,q b =⎧⎨=⎩故2n n b =，则21n n a =-， ()12122212n n n S +-==--，所以531a =，选项C 错误，故选C.6.答案：C解析：设正项等比数列{}n a 的公比为(0)q q >，则()()2543232643232218a a a a a a q +--=+-=，322832021a a q +=>-，令221q t -=，0t >，则()42476322246(1)9633221q t a a q a a q t ++=+===-1626224t t ⎛⎫⎛⎫++≥= ⎪ ⎪ ⎪⎝⎭⎝⎭，当且仅当1t =时取等号，则7696a a +的最小值为24. 7.答案：BC解析：设等差数列{}n a 的公差为d .因为30S =，46a =，所以113230,236,a d a d ⨯⎧+=⎪⎨⎪+=⎩解得13,3,a d =-⎧⎨=⎩所以1(1)33(1)36n a a n d n n =+-=-+-=-，21(1)3(1)393222n n n n n n nS na d n ---=+=-+=.故选BC. 8.答案：BD解析：本题考查等比数列的通项公式、性质及前n 项和.由638a a =，可得3338a q a =，解得2q =.当首项10a <时，{}n a 为单调递减数列，故A 错误；663312912S S -==-，故B 正确；假设369,,S S S 成等比数列，则2693S S S =⋅，即()()()2639121212-=--，等式不成立，则369,,S S S 不成等比数列，故C 错误；11122121n n n n a a q a a S a a q --===---，故D 正确.故选BD. 9.答案：2解析：本题考查等比数列的性质.因为数列{}n a 是等比数列，所以2415144a a a a ==.又因为2430a a +=，解得246,24,a a =⎧⎨=⎩或2424,6.a a =⎧⎨=⎩由无穷等比数列{}n a 的各项均大于1，可知1q ≥，所以246,24.a a =⎧⎨=⎩因为242a a q =⋅，所以2246q =，解得2q =（负值舍去）.10.答案：7解析：令1m =，则11n n a a a +=+，111n n a a a +-==，所以数列{}n a 为等差数列，所以n a n =，所以22121212n n a a n n n n λλλ≤≤≤+⇒+⇒+，又函数12y x x=+在(0,上单调递减，在)+∞上单调递增，当3n =时，12373λ≤+=，当4n =时，12474λ≤+=，所以12n n +的最小值为7，所以λ的最大值为7. 11.答案：20212022解析：因为233212118,6a S S a q S a a q =-===+=，所以211143a q a a q =+，所以23440q q --=，得2q =或23-（舍去），所以12a =，故2n n a =. 因为2211111log log (1)1n n a a n n n n +==-⋅++，所以20211111112021112232021202220222022T =-+-++-=-=. 故答案为：2021202212.答案：(1)12n n a a -=；21n n S =-. (2)12362n n n T -+=-.解析：(1)由21,n n a S -=得21n n S a =-，当1n =时，11121,a S a ==-得11a =；当2n ≥时，()()112121n n n n n a S S a a --=-=---，得12n n a a -=，所以数列{}n a 是以1为首项，2为公比的等比数列，所以12n n a -=. 所以2121n n n S a =-=-. (2)由(1)可得1212n n n b --=，则2113521111222n n n T --=++++=⨯+2111135(21)222n n -⨯+⨯++-⋅，2311111135(21)22222n nT n =⨯+⨯+⨯++-⋅，两式相减得23111111112(21)222222n n nT n -⎛⎫=+++++--⋅ ⎪⎝⎭，所以23111111124(21)22222n n n T n --⎛⎫=+++++--⋅ ⎪⎝⎭ 11112224(21)1212n n n --=+⋅--⋅-12362n n -+=-. 答案以及解析1.答案：A解析：本题考查利用导数的几何意义求参数.对()f x 求导得()4af x x x'=+，所以(1)4f a '=+.又(1)2f =，所以函数2()2ln f x x a x =+的图像在点(1,2)处的切线的方程为2(4)(1)y a x -=+-，把点(0,5)-代入，解得3a =.故选A. 2.答案：B解析：()(3)e x f x x ax =--，()e (2)x f x x a '=--. 因为函数()(3)e x f x x ax =--在(0,2)上为减函数，所以()e (2)0x f x x a '=--≤在(0,2)上恒成立，即e (2)x x a -≤，所以max e (2)xx a ⎡⎤-⎣≤⎦.设()e (2)x g x x =-，()e (1)x g x x '=-，所以当(0,1)x ∈时，()0g x '>，当(1,2)x ∈时，()0g x '<，所以函数()g x 在(0,1)上单调递增，在(1,2)上单调递减，故max ()(1)e g x g ==，所以e a ≥，故选B. 3.答案：B解析：当0x ≤时，()e x f x x =⋅，()(1)e x f x x '=+⋅，可得()f x 在(,1)-∞-上单调递减，在(1,0]-上单调递增，且1(1)ef -=-，所以()f x 的大致图象如图所示，由2()(1)()0f x m f x m -++=，解得()1f x =或()f x m =.由()f x 的图象可知，当()1f x =时，有1个根，所以()f x m =要有3个根，故实数m 的取值范围为1,0e⎛⎫- ⎪⎝⎭，故选B.4.答案：D解析：依题意，()()(1)g x f x f x =--在R 上是增函数，(0,)x ∀∈+∞，不等式ln ln ()(1)1x x f m f f m f x x ⎛⎫⎛⎫-+≤++- ⎪ ⎪⎝⎭⎝⎭恒成立，即ln ln 1(1)()x x f f f m f m x x ⎛⎫⎛⎫--≤+-- ⎪ ⎪⎝⎭⎝⎭恒成立，等价于ln (1)x g g m x ⎛⎫≤+ ⎪⎝⎭恒成立，ln 1x m x ∴+≥.令ln ()(0)x h x x x =>，则21ln ()(0)x h x x x -'=>，易得max 1()(e)e h x h ==，11e m ∴+≥，11em ≥-，故选D. 5.答案：A解析：由题意得()e x f x x a '=-，因为函数()e (1)x f x x ax =--有两个极值点，所以()0f x '=有两个不等的实根，即e x a x =有两个不等的实根，所以直线y a =与e x y x =的图象有两个不同的交点.令()e x g x x =，则()e (1)x g x x '=+.当1x <-时，()0g x '<，当1x >-时，()0g x '>，所以函数()g x 在(,1)-∞-上单调递减，在(1,)-+∞上单调递增，所以当1x =-时，()g x 取得最小值，且最小值为1e-.易知当0x <时，()0g x <，当0x >时，()0g x >，则可得函数()g x 的大致图象，如图所示，则10ea -<<，故选A.6.答案：C解析：因为()ln 2e 3f x x x '=-+，记()ln 2e 3g x x x =-+，则112e ()2e xg x x x-'=-=. 当12e x ≥时，()0g x '≤，所以函数()g x 在1,2e ⎡⎫+∞⎪⎢⎣⎭上单调递减. 又10e f ⎛⎫'= ⎪⎝⎭，所以当112e e x ≤<时，()0f x '>，()f x 单调递增；当1ex >时，()0f x '<，()f x 单调递减.当1ex =时，()f x 有极大值也是最大值，1e f m ⎛⎫= ⎪⎝⎭. 若()0f x =在1,2e ⎡⎫+∞⎪⎢⎣⎭上有两解，应有10e f m ⎛⎫=> ⎪⎝⎭，112ln 202e 4e f m -⎛⎫=+≤ ⎪⎝⎭，所以2ln 2104e m -<≤，此时(1)2e 0f m =-+<，所以()0f x =在1,2e ⎡⎫+∞⎪⎢⎣⎭上有两解成立，故选C. 7.答案：BD解析：因为2()e 21x f x x x x =---，所以()()e e 22(1)e 2x x x f x x x x '=+--=+-，所以当ln2x >或1x <-时，()0f x '>，当1ln2x -<<时，()0f x '<，所以()f x 在(,1)-∞-和(ln 2,)+∞上单调递增，在(1,ln 2)-上单调递减，故()f x 的极大值为1(1)ef -=-，故A 错误，B 正确；因为(0)1f =-，(0)1f '=-，所以曲线()y f x =在(0,(0))f 处的切线方程为(1)(0)y x --=--，即10x y ++=，故C 错误，D 正确.故选BD.8.答案：BC解析：若存在c ，d 使得函数()f x 的图象关于原点对称，则函数()f x 为奇函数，因为3211()32f x x x cx d -=-+-+，所以2()()2f x f x x d +-=+，对于任意的x ，并不满足()()0f x f x +-=，故函数()f x 不为奇函数，故A 错误；由3211()32f x x x cx d =+++得2()f x x x c '=++，要使()f x 是单调函数，必满足140c ∆=-≤，解得14c ≥，故B 正确；若函数有两个极值点，则必须满足0∆>，即14c <，此时12121,,x x x x c +=-⎧⎨=⎩则()222121212212x x x x x x c +=+-=-，所以()2442222221212122(12)2x x x x x x c c +=+-=--=222412(1)1c c c -+=--，因为14c <，所以22112(1)121148c ⎛⎫-->--= ⎪⎝⎭，故441218x x +>，故C 正确；耇2c d ==-，则3211()2232f x x x x =+--，2()2f x x x '=+-，画出函数的大致图象，如图所示，三条虚线代表三条相切的切线，故D 错误.故选BC.9.答案：33e -解析：根据题意得1()e e a x a x f x ax x -+'=， (1)e f =，所以(1)e e 4e,e 4e f a b =+==+'，解得3,3e a b ==-，故33e a b +=-.10.答案：1,3⎛⎫+∞ ⎪⎝⎭ 解析：构造函数3()()ex f x F x =，则3363e ()3e ()()3()()e e x x x x f x f x f x f x F x ''--'==，函数()f x 满足()3()0f x f x '->，()0F x '∴>，故()F x 在R 上单调递增. 又1e 3f ⎛⎫= ⎪⎝⎭，113F ⎛⎫∴= ⎪⎝⎭，∴不等式33()()e 1e x x f x f x >⇔>，即1()3F x F ⎛⎫> ⎪⎝⎭，由()F x 在R 上单调递增，可知1,3x ⎛⎫∈+∞ ⎪⎝⎭.。

七年级数学国庆假期作业卷(四)

七年级数学国庆假期作业卷（四）一．选择题1．下列各组数中，具有相反意义的量是（）A．盈利40元和运出货物20吨B．向东走4千米和向南走4千米C．身高180cm和身高90cm D．收入500元和支出200元2．某单位开展了“健步迎冬奥，一起向未来”职工健步走活动，职工每天健步走5000步即为达标．若小王走了7205步，记为+2205步；小李走了4700步，记为（）A．﹣4700步B．﹣300步C．300步D．4700步3．在下列选项中，既是分数，又是负数的是（）A．8B．﹣C．0.12D．﹣24．下列说法错误的是（）A．正分数一定是有理数B．整数和分数统称为有理数C．整数包括正整数、0、负整数D．正数和负数统称为有理数5．下列各数在数轴上与﹣1最近的为（）A．﹣5B．6C．3D．﹣46．已知|a|＝1，b是的相反数，则a+b的值为（）A．或B．C．D．或7．下面说法中正确的是（）A．两数的绝对值相等，则这两个数一定相等B．两数之差为负，则两数均为负C．两数之和为正，则两数均为正D．两数之积为正则这两数同号8．某市客运管理部门对“五一”黄金周假期五天的客流变化量做了不完全统计，数据如下（用正数表示客流量比前一天上升数，用负数表示下降数）：日期1日2日3日4日5日变化/万人20﹣2﹣593与4月30日比，5月3日的客流量变化了多少（）A．下降了5万人B．上升了13万人C．上升了21万人D．下降了7万人9.下列计算结果为非负整数的是（）10．椰树牌椰子汁外包装标明：净含量为330±5g；表明了这瓶椰子汁的净含量x的范围是（）A．315＜x＜330B．325≤x＜330C．315＜x≤325D．325≤x≤33511．某新冠疫苗对储存设备的温度要求较高，一定要保存在（﹣8～﹣2）℃的环境才可以确保其药物的有效性！某疫苗指定接种单位的储存设备因线路故障造成了一段时间的停电，供电恢复后，工作人员马上检测了冷藏箱的温度，虽然比原来高了n℃，但仍符合储存疫苗的要求，则n的值不可能是（）A．1B．3C．5D．712．下表列出了国外几个城市与首都北京的时差（带正号的表示同一时刻比北京时间早的时数，带负号的表示同一时刻比北京时间晚的时数）城市纽约巴黎东京芝加哥时差/时﹣13﹣7+1﹣14如果现在是北京时间9月11日15时，那么现在的纽约时间是（）A．9月10日21时B．9月12日4时C．9月11日4时D．9月11日2时13．数轴上表示数为a和a﹣4的点到原点的距离相等，则a的值为（）A．﹣2B．2C．4D．不存在14．若|x|+|x﹣4|＝8，则x的值为（）A．﹣2B．6C．﹣2或6D．以上都不对二．填空题15．||的相反数的倒数是．16．在2，﹣3，4，﹣5这四个数中，任取两个数相乘，所得的积最大是．17．数轴上A点表示﹣3，B、C两点表示的数互为相反数，点B到点A的距离是2，则点C表示的数为．18．已知|x|＝8，|y|＝5，且xy＜0，则x+y的值等于．19．若a是最大的负整数，b是倒数数等于本身的数，则b﹣4a＝．20．已知数轴上两点A、B对应的数分别为﹣2，3，点P为数轴上一动点，其对应的数为x；当点P到点A、B的距离之和为7时，则对应的数x的值为．三．解答题21．将数分类：﹣2，0，﹣0.1314，11，，﹣4，0.03，2%，π．正有理数数：{ …}；非负数：{ …}；负分数：{ …}；非负整数：{ …}．22．画出数轴，在数轴上表示下列各数，并将上述数据用“＜”号连接起来﹣（+4），﹣（﹣2），0，+（﹣1.5），﹣|﹣3|23．计算下列各题：（1）（﹣2）+（+3）+（+4）+（﹣3）+（+5）+（﹣4）；（2）．（3）﹣3+（﹣5）+|1﹣8|．（4）（﹣2）﹣（+4.7）﹣（﹣0.4）+（﹣3.3）；（5）5+（﹣5）+4+（﹣）（6）4+8.6﹣++；（7）0.125+（+3）+（﹣3）+（+）+（﹣0.25）．（8）﹣﹣|﹣|﹣（﹣）+1．24．已知|x|＝3，|y|＝7．（1）若x＜y，求x+y的值；（2）若xy＜0，求x﹣y的值．25．对于含绝对值的算式，在有些情况下，可以不需要计算出结果也能将绝对值符号去掉，例如：|7﹣6|＝7﹣6；|6﹣7|＝7﹣6；；．观察上述式子的特征，解答下列问题：（1）把下列各式写成去掉绝对值符号的形式（不用写出计算结果）：①|7﹣21|＝；②＝；（2）当a＞b时，|a﹣b|＝；当a＜b时，|a﹣b|＝；（3）计算：．26．为了有效控制酒后驾驶，石家庄交警的巡逻车从交警队出发，在一条东西方向的公路上巡逻，约定向东为正方向，从交警队开始所走的路程为（单位：千米）：+14，﹣9，+8，﹣7，+13，﹣6，+12，﹣5．（1）请你帮忙确定交警最后所在地相对于交警队的方位？（2）巡逻车油箱共有40升汽油，若汽车每千米耗油0.2升，巡逻车回到交警队后还剩汽油多少升？27．如图，在数轴上有三个不同的点A，B，C，点C对应有理数10；原点O为点A和点B的中点，且点A、B之间的距离是点B、C之间距离的3倍．（1）求点A，B所对应的有理数；（2）动点P从点A出发，以每秒1个单位的速度向右移动，当点P到点A的距离是到点B距离的2倍时，直接写出此时点P所对应的有理数．。

七年级数学国庆假期作业参考答案

七年级数学国庆假期作业1 参考答案一选择题：B B C B C C D二填空题：8、 7，63 9、14， 10 、37 11、120 12、20 13、1980 14、25平方米 15、33平方米 16、黄红三解答题： 16、答案不唯一 17、800元18、（1）7条，15条（2）2n+1-1 七年级数学国庆假期作业2 参考答案一填空题：1、-6摄氏度，2、0 ，3、24、左，4个单位长度5、-1 -2 -3，6、2011 ，20127、508、9、 10、-5 11、-1，0，1，2，3，二选择题：DBDCADA三解答题19 略20、（1）表示向西走350米，（2）西边70米（3）共走了630米 21、略22、略23、小明在书店西边30米处。

24、16七年级数学国庆假期作业3 参考答案一选择题： DBDC二填空题：（1） 3，23，0.4 ，0，9，-2 （2）012，，±± ；-2，-1，0 （3） 6± （4）B （5） -2，6 （6）-1三、计算题（1） 18.6（2）7.49（3）-83（4） 71 四、化简；（1）2 （2） -2007 （3 ）27 （4）32 五、比较大小（1）（2）六、略七、略八、第一个最准确， 8七年级数学国庆假期作业4 参考答案一填空题：1.-5 ，-8，-7 2.-12 ，2111，-4 3. - 518，0 4.0 5.-1，9 6. -6 7. 7 8.-10 二选择题：9. C 10. B 11. D 12. B 13. B 14. C 三解答题：15.（1）-35（2）8 （3）6512（4）-2 （5）5 （6）315- （7）0 （8）50 四、应用题：16.1225元 17.（1）41千米（2）13.4升七年级数学国庆假期作业5 参考答案一选择题： BBCD二填空题： 5、 8，-1 6、-251 -651， 7、0，0 8、9900三解答题： 9、（1）78 （2） -2 （3） -12 （4）32 （5） 3112 （6） 93112 （7） -1 （8）301 （9） 350 （10）7.8摄氏度， 7千米七年级数学国庆假期作业6 参考答案一填空题：1、-3 ， 2，9 ；2、3， 3，-27 ；3、-8，81-，27343-，0 ； 4、23-±， 5、2； 6、8710⨯， 71065.7⨯- 7、2000000，960000，75800008、510633.3⨯ ，510055.4⨯二、选择题 ABDADB三、计算题（1）36 （2）41 （3）-0.0081 （4） 6427（5）38- （6）169（7）-2 （8）14 （9）-13 （10）61四、解答题1、1.8 310⨯ 2、7106792.3⨯ 能达到1亿次。

四年级下册数学假期作业(4)

把每天的练习题目都写在大演草上（抄题）。

日期：时间：家长签字：1、竖式计算（带★的要验算）234×46 ★613×482、脱式计算，能简便的要简便125×25×32 600－9520÷28 3500÷ 25 ÷43.《故事大王》每本12元，《十万个为什么》每本25元，买8本《故事大王》和8本《十万个为什么》一共需要多少钱4．四二班有男生38人，女生26人。

每8人一组参加清理小广告的活动，一共可以分成多少组日期：时间：家长签字：1、竖式计算（带★的要验算）★ 240×38 7300÷902、脱式计算，能简便的要简便1880-(59+21)×12 (75+240)÷(20-5)33×13-993．李大爷带了250元买化肥，买了5袋化肥后还剩下25元。

每袋化肥的价钱是多少元4．一个修路队修一条公路，每天修 24米，修了15天后，还剩下130米。

这条公路长多少日期：时间：家长签字：1、竖式计算（带★的要验算）320×25 285÷152、脱式计算，能简便的要简便546×(210－195) (6130－5960)×40 (4361－716)÷813．张老是带了200元钱，想买2个排球和4根跳绳，每个排球48元，每根跳绳12元，还剩多少元4．一台电冰箱2400元，一台彩色电视3500元，一台洗衣机1650元。

买三种家电各一台，一共需要多少元日期：时间：家长签字：1、竖式计算（带★的要验算）★ 125×48 376÷842、脱式计算，能简便的要简便88×225＋225×12 36×19-19×26 75+360÷(20-5)3．春季同学们植树，四年级同学植树88棵，五年级同学植树96棵，六年级同学植树104棵，三个年级的学生一共植树多少棵4．小红上学期期末考试，语文、数学、自然、社会、英语的成绩分别是88分、96分、94分、90分、82分。

小学数学6年级上册国庆假期作业,查漏补缺(附答案)

六年级数学上册国庆假期作业（1）一、填一填。

1、刘强和王兵在教室里的位置可以用点（4，1）和点（2，7）表示，（4，1）中的 4 表示第 4 列，则 1 表示（），（2，7）表明王兵坐在第（）列第（）行。

2、音乐课,聪聪坐在音乐教室的第 4 列第 2 行,用数对(4，2)表示,明明坐在聪聪正后方的第一个位置上,明明的位置用数对表示是( )。

3、如果 A 点用数对表示为（1，5），B 点用数对表示数（1，1），C 点用数对表示为（3，1），那么三角形 ABC 一定是（）三角形。

4、一根 8 米长的绳子平均剪成 5 段，其中每段占全长的（），每段长（）米。

5、90 米的2 是（）米； 3 吨的1 是（）吨；5 2318 个 3 的和是（）；比 20 千克的3 多 2 千克是（）千克。

10 42米=（）分米7平方米=（6、5 257千克=（）克9升=（8 207、在下面（）里填上>、<、=。

30×3 （）30 2 ×1（5 53 ⋅ 5 （）3 3 ⋅ 15 （8 2 8 4 7二、计算1、口算35 ⋅ 5 = 3 + 2 = 5 ⋅ 9 =7 4 3 12 103 ⋅ 14 = 0 ⋅ 3 = 4 ⋅ 1 ⎪ 4 ⋅ 1 =7 5 39 3 2、计算（能简算的要简算））平方分米7小时=（）分12）毫升1分=（）秒4）1）157⋅432⋅ 7 +3⋅ 7 =5 52(3 +15) ⋅15 =1 −1⋅7+5(2−5⋅3) ⋅16 7⋅1+3⋅72 7 10 63 9 8 7 184 4 1845 ⋅ 45 24 ⋅ ( 3 −1 + 1 ) 2 − ( 1 + 1 ) −2346 4 3 6 2 25 50【提高练习】三、看图列式计算。

1、2、24 吨吨9公顷600 千米103、4、千米公顷六年级数学上册国庆假期作业（2）【基础训练】一、填一填。

1、在○里填上＞、＜或=5 5 2 2 3 1 3×4○9×○×9×○6 6 3 3 8 2 81分米的正方形的周长是（）分米。

新课标2022年高一英语暑假作业4 Word版含答案

高一英语假期检测题四第一部分阅读理解（共两节，满分60分）第一节：（共15小题；每小题3分，满分45分）阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

ADear Mom and Dad,The time has come: I’m graduating, and I thank you both for all your help during these 15 years. I still remember when you used to say, “You can be whatever you want” I’m so glad you are my parents, especially when I hear kids say they don’t get on well with theirs.I’m glad that you support(支持) me when I decide to do anything. You always try to help, and that’s important to me .Dad, I remember when you first took me fishing. I loved going even though I also remember when you would get angry with me. I realize you were only trying to show me the right way. When I would cry, you would always be there to try to cheer me up. That’s what I call a good, loving, caring dad.Sometimes you and Mom don’t agree with me, but you are there by my side in anything that I do, and that’s why I love you both so much.. Mom, I enjoy going out with you and having our happy time every Friday night, and I hope that never changes. I love telling you everything; the best part about you is that you listen. I’m glad that we do a lot together. You love to have fun, andDad does, too. You always give me your opinion and I listen.Thank you for bringing me up.Love always,Allison1.Allison writes the letter to show ________ to her parents.A. wishesB. supportC. helpD. thanks2. In Allison’s opinion, other kids of her age may _____their parents.A. have problems withB. get on well withC. like to talk toD. like to listen to3. Father might get angry with her when Allison _______.A. didn’t cheer himB. didn’t do things in the right wayC. didn’t catch any fishD. didn’t agree with her parents 4. What makes Allison and her mother good friends?A. Cheering up each other.B. Listening to each other and having fun together.C. Encouraging each other.D. Going out togetherBGood afternoon, and welcome to England. We hope that your visit here will be a pleasant one. Today, I would draw your attention to a few of our laws.The first one is about drinking. Now, you may not buy wine in this country if you are under l 8 years of age, nor may your friends buy it for you.Secondly, noise. Enjoy yourselves by all means, but please don’t make unnecessary noise, particularly, at night. We ask you to respect other people who may wish to be quiet.Thirdly, crossing the road. Be careful, the traffic moves on the left side of the road in this country. Use pedestrian crossing and don’t take any chances when crossing the road．My next point is about rubbish. It isn’t lawful to drop rubbish in the street. When you have something to throw away, please put in your pocket and take it home, or put it in dustbin．Finally, as regards smoking, it is against law to buy cigarettes or tobacco if you are under l6 years of age.I’d like to finish by saying that if you require any sort of help or assistance you should contact the police, who will be pleased to help you. You can call write or directly go to ask any policeman.5. The phrase “take any chance” in the passage means______A. 冒险，碰运气B. 趁机C. 失去机会D. 生气6. How many laws are there discussed in the speech?A. Three.B. Four.C. Five.D. Six.7. The main purpose of this speech is to______.A. tell people that those above l8 can smoke and drink thereB. declare the different laws of EnglandC. give advice to travelers to the countryD. warn people against going to the country8. From the speech we have learn that______.A. in England, if you are 18 years of age, you may not buy wine, but your friends can buy it for youB. you may not buy cigarettes or tobacco unless you are above 16 years of ageC. because the traffic moves on the left side of the road, you must use the pedestrian when crossing the roadD. you can’t make a noise except at nightC“Happy New Year!” Everyone will greet each other with these words as they meet over the next couple of weeks. But it wasn’t always January l that marked the New Year.At least 4,000 years ago the ancient Egyptians and Bahylo-nians(古巴比伦人)marked the changing of the year. In Egypt, the year started when the Nile River(尼罗河)flooded, enriching farmers’ fields with silt(淤泥). This happened at the end of September.The Babylonians held a festival in spring, on March 23, to kick off the next farming cycle. The Babylonian celebration lasted for l l days.The date January l was picked by the Roman Emperor Julius Caesar as the change of the year when he established his own calendar in 4 6 BC. The month of January was named after the Roman god, Janus(雅努斯). He is pictured with two heads. 0ne head looks forward and the other back. They represent a break between the old and new. That new calendar was in time with the sun and it has been used until the present day.Around the world, different cultures have their own traditions for welcoming the New Year. The Japanese hang straw rope across the front of their houses to keep out evil spirits and bring happiness and good luck. They also have a good laugh as the year begins to get things started on a lucky note.In India people like to wear pink, red, purple and white flowers. Women favor yellow, the color of spring. Hindus also leave shrines next to their beds so they see beautiful objects when they wake up.Canadians enjoy the traditional polar bear swim. People of all ages put on their swimsuits and jump into frozen lakes.9. Which ancient country has a great effect on the New Year we are celebrating now?A. Egypt.B. Rome.C. Babylon.D. India.10. What’s the main idea of the last three paragraphs?A. People in different countries celebrate the New Year in different times of the year.B. In different countries people celebrate the New Year in different ways.C. Which country has the best tradition for welcoming the New Year?D. In different countries people play different games to celebrate the New Year.11.What can we infer from this passage?A. Everyone will greet each other with “Happy New Year” for several months.B. Women favor yellow flowers in Japan when they celebrate the New Year.C. Canadians like swimming in the lake to celebrate the New Year though it is very cold.D. Human beings have been celebrating the New Year for no more than 4.000 years.DThe American newspaper has been around for about three hundred years. In 1721, the printer James Franklin. Benjamin’s older brother, started the New England Courant, and that was what we might recognize today as a real newspaper. He filled his paper with stories of adventure, articles on art, on famous people, and on all sorts of political subjects.Three centuries after the appearance of Franklin’s Courant, few believe that newspapers in their present printed form will remain alive for long. Newspaper companies are losing advertisers, readers, market value. and. in some cases, their sense of purpose at a speed that would not have been imaginable just several years ago. The chief editor of the times said recently,” At places where they gather, editors ask one another, 'How are you?', as if they have just come out of the hospital or a lost law came. “An article about the newspaper appeared on the website of the Guardian, under the headline “NOT DEAD YET.”Perhaps not, but the rise of the Internet, which has made the daily newspaper look slow and out of step with the world, has brought about a real sense of death. Some American newspapers have lost 42% of their market value in the past thee years. The New York Times Company has seen its stock （股票）drop by 54% since the end of 2004, with much of the loss coming in the past year. A manager at Deutsche Bank suggested that stock-holders sell off their Times stock. The Washington Post Comply has prevented the trouble only by changing part of its business to education: its testing and test-preparation service now brings in at least half the company’s income.12. What can we learn about the New England Curran?A. It is mainly about the stock market.B. It marks the beginning of the American newspaper.C. It remains a successful newspaper in America.D. It comes articles by political leaders.13. What can we infer about the newspaper editors?A. They often accept readers’ suggestionsB. They care a lot about each other’s health.C. They stop doing business with advertisers.D. They face great difficulties in their business.14. Which of the following found a new way for its development?A. The Washington PostB. The GuardianC. The New York Times.D. New England Courant15. How does the author seem to feel about the future of newspapers?A. SatisfiedB. HopefulC. WorriedD. Surprised其次节（共5小题；每小题3分，满分15分）依据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

五年级下册暑假作业答案 (4)

五年级下册暑假作业答案一、语文1. 阅读理解题目一：李华一家是一个非常喜欢旅游的家庭，每个暑假都会选择一个地方出游。

今年暑假，他们选择了去乌镇旅游。

乌镇是一个古老而宁静的小镇，以其独特的水乡风景而闻名于世。

在乌镇，他们参观了古老的桥梁、古建筑和博物馆，品尝了当地的特色美食。

此外，他们还乘船游览了美丽的西湖。

根据短文内容，回答下面的问题：1.李华一家选择去哪个地方旅游？答案：乌镇。

2.乌镇以什么而闻名？答案：乌镇以其独特的水乡风景而闻名。

3.李华一家在乌镇参观了哪些景点？答案：古老的桥梁、古建筑和博物馆。

4.李华一家还乘什么游览了美丽的西湖？答案：他们乘船游览了美丽的西湖。

题目二：小明写了一篇关于冬奥会的作文。

请阅读他的作文，并回答下面的问题：我喜欢冬奥会。

冬奥会是一个让人兴奋和激动的体育赛事。

在冬奥会上，我们可以看到各种各样的冰雪项目，如滑冰、滑雪和冰球等。

运动员们都非常努力，他们为了参加冬奥会付出了很多努力和汗水。

他们像一群勇敢的战士，为国家争光。

我希望将来有机会去看一场真正的冬奥会比赛。

根据作文内容，回答下面的问题：1.小明写的是关于什么的作文？答案：小明写的是关于冬奥会的作文。

2.冬奥会有哪些冰雪项目？答案：冬奥会有滑冰、滑雪和冰球等冰雪项目。

3.运动员们为了参加冬奥会做了什么？答案：运动员们为了参加冬奥会付出了很多努力和汗水。

4.小明希望将来有机会做什么？答案：小明希望将来有机会去看一场真正的冬奥会比赛。

2. 词语运用题目一：从方框中选择合适的词语填空。

方框：小草、树木、鲜花、蝴蝶、美丽春天来了，大地上到处是绿草和开放的__鲜花__，__树木__变得葱绿蓬勃。

__蝴蝶__在花丛中翩翩起舞，整个世界变得如此__美丽__。

题目二：将下列词语填入对应的合适的横线上。

春天：夏天：秋天：冬天：_百花盛开，四时芬芳。

___游泳是最好的消暑方式。

_落叶飘飘，天空湛蓝。

_堆雪人__的季节到了。

3. 作文请你用自己的话，写一篇关于如何保护环境的作文。

广东省揭阳市普宁市勤建学校2024-2025学年九年级上学期国庆节假期作业语文试题(含答案)

勤建学校2024—2025学年度第一学期初三年级国庆节假期作业语文（第4周）命题人：审核人：得分：1.默写古诗文。

（共10分。

答对一句得1分，满分不超过10分）(1)因思杜陵梦，____________。

（温庭筠《商山早行》）(2)欲为圣明除弊事，____________！____________？雪拥蓝关马不前。

（韩愈《左迁至蓝关示子侄孙湘》）(3)汉文有道恩犹薄，____________。

（刘长卿《长沙过贾谊宅》）(4)戍鼓断人行，边秋一雁声。

____________，____________。

（杜甫《月夜忆舍弟》）(5)诗言志，诗来表明作者的心志。

如李白在《行路难（其一）》中的“，”两句就是运用两个典故表明自己想得到重新重用的心志，如刘禹锡在《酬乐天扬州初逢席上见赠》“，”的两句表明自己到家后深感物是人非的心志；如苏轼在《水调歌头》中的“，”两句表明自己豁达的心志。

阅读下面的文字，完成2～4题。

（7分）新学期，新征程。

打开课本，在老师的带领下，我们快乐出发！在冰封的北国世界里，我们她的另一番妖娆；再与pīng tíng( )、鲜妍的人间四月天撞个满怀；在雨果充满情怀与义愤的文字里古老东方文明的梦幻 jiǎn yǐng( )——圆明园；然后潜身与心灵对视，在精神的深处三间小屋，xīn wú páng wù（），让灵魂在的时空里得到超脱与安宁……为了迎接第一次月考，老师忽然渐渐放慢了教学进度，带着我们复习旧知识。

2.根据拼音写出相应的词语。

（3分）（1）pīng tíng( ) （2）jiǎn yǐng( ) （3）xīn wú páng wù（）3.下列依次填入横线处的词语，最恰当的一项是（）（2分）A. 品味看见修葺广袤B.品位瞥见修葺广阔C. 品味瞥见修葺广袤D.品位看见修缮广阔4.语段中画波浪线的句子有语病，下列修改最恰当的一项是（）（2分）A.为了迎接第一次月考，渐渐地，老师忽然放慢了教学进度，带着我们复习旧知识。

三年级下册数学假期作业暑假作业(四) 人教版(无答案)

小学三年级数学应用题测试1．一个果园里栽了125棵苹果树，梨树的棵数比苹果树的4倍少20棵。

这个果园一共栽了多少棵树？2．一段路长324米，已经修了240米，剩下的计划4小时修完。

平均每小时修多少米？3．红光印刷厂装订一批日记本，前三天共装订了960本，后16天平均每天装订420本。

这批日记本共有多少本？4．一个打字员4分钟输入200个汉字。

照这样计算，输入3000个汉字需要多少分钟？5．3袋面粉共重75千克，8袋面粉重多少千克？6．一个钢铁厂，炼750千克钢需要用5吨水。

照这样计算，钢铁厂一天节约55吨生活用水，可以炼钢多少千克？7．5箱蜜蜂一年可以酿375千克蜂蜜。

照这样计算，19箱蜜蜂一年可以酿多少千克蜂蜜？一年要酿1725千克蜂蜜需要养多少箱蜜蜂？8．两个年级的同学去买书，三年级有48人，每人买2本，四年级每人买3本，四年级买的总本数和三年级一样多。

四年级一共有多少人买书？9．工人们修马路，原计划用40个工人，实际用了45个工人。

计划要修路90天，实际修了多少天？10．小华从学校步行回家要20分，骑自行车回家要10分。

小华步行每分走45米，他骑自行车每分行多少米？11．学校买15盒彩色粉笔，每盒50枝，用去10盒。

还剩多少枝没有用？12．海天机械厂第一，二，三车间各生产了6箱零件，每箱120个，一共生产零件多少个？13．一台织布机一小时织布21米，5小时4台同样的织布机共织布多少米？14．汽车从南京开往上海，每小时行60千米，3小时行了全程的一半。

因车上一人生病，剩下的路程要2小时行完。

平均每小时要行多少千米？15．刘师傅23天共加工4255个零件，王师傅平均每天比刘师傅多加工18个。

王师傅每天加工零件多少个？16．李伯伯家的一头牛，10天吃草50千克。

照这样计算，有155千克草够这头牛吃多少天？17．湖滨公园有18条游船，每天收入1008元。

照这样计算，现在有26条游船，每天增加收入多少元？18．工厂要加工360个零件，小王5天可做完，用这样的速度，做8天能加工多少个零件？19．明明看一本故事书，每天看20页，5天看了这本书的一半。

2019-2020年八年级英语假期校本作业4

一、单项选择。

( ) 1. Shanghai is bigger than _______ in Japan.A. any other cityB. all the other citiesC. any cityD. the other cities( ) 2. No one plays with him, so he feels very ________.A. happyB. happilyC. boredD. boring( ) 3. — ________ is your height? —180 cm.A. HowB. WhatC. How longD. How far( ) 4. The Changjiang River is one of __________ in the world.A. the long riverB. the long riversC. the longest riverD. the longest rivers( ) 5. —What’s your best friend like? —He is ________ .A. healthyB. friendlyC. fatD. happy( ) 6. Mo Yan is an ________ writer.A. excellentB. usefulC. famousD. great( ) 7. Father drives me ______ every day.A. to homeB. homeC. to thereD. school( ) 8. They call “autumn” in British English.A. leftB. liftC. hallD. fall ( )9. Today she looks . Look! She is looking at his son.A. happy , happyB. happily , happilyC. happy , happilyD. happily , happy( ) 10. —How often do you clean the fish tank? — .A. This morningB. Only onceC. Twice a weekD. Two days.二、完形填空：Everyone needs friends. We all like to feel close to someone. It is nice to have a friend to __11__, laugh, and to do things with. Certainly, __12__ we need to be alone. We don’t always want people __13__. But we would feel lonely if we never have friends.No two people are just the same. Friends someti mes don’t get on well with each other. It doesn’t mean that they no longer __14__ each other. Most of the time they will make up (言归于好) and become friends again.Sometimes friends __15__ away. Then we feel very sad. We miss them very much, but we can __16__ them and write to them. And we can __17__ new friends. It is surprising to find out __18__ we like new people when we get to know them.There is more good news for people who have friends. They live __19__ than people who don’t. Why? It could be that the y are happier. __20__ happy helps you stay well. Or it could be just knowing that someone cares about you. If someone cares about you, you take better care of yourself.( ) 11. A. speak B. talk C. tell D. say( ) 12. A. always B. often C. usually D.sometimes( ) 13. A. around B. alone C. away D. above( ) 14. A. know B. think C. hate D. like ( ) 15. A. go B. leave C. move D. set( ) 16. A. ask B. call C. tell D. help ( ) 17. A. chat B. have C. make D. be( ) 18. A. how much B. how long C. how many D. how often ( ) 19. A. more B. longer C. shorter D. less ( ) 20. A. Be B. Being C. Make D. Making三、阅读理解2019-2020年八年级英语假期校本作业4is near him.planning to kill him so that he can control (for help and they start out to the sea.A. AmericaB. LondonC. the seaD. the world( ) 22. Why does Lex Luther plan to kill Superman?A. Because Lex tried to save the world.B. Because Lex never sees Superman on the screen.C. Because Lex finds it hard to like the story.D. Because Lex wants to control the world.( ) 23. What is the trouble for Captain Jack Sparrow this time?A. He again appears on the screen.B. He turns to his friends for help.C. He is in a heavy debt to Davey Jones.D. He finds the Dead Man’s Chest.BOnce Mr King had a cat, and he loved it very much. He called it “Sky”, because he thought “Sky” was the strongest name in th e world.One day he had a meal at a restaurant with his cat. He met his old friend. He told him about his lovely cat and its name. His friend said, “How foolish you are! Sky is not the strongest thing in the world. My cat is called ‘Cloud’ because cloud is stronger than sky.” After hearing this, Mr King called his cat “Wind” because he thought wind was stronger than cloud.After a few days he suddenly（突然）thought that “Wall” was stronger than wind. And “Mouse（老鼠）” was stronger than wall. So he went to his fr iend to ask for an idea. His friend said, “Don’t you think ‘Cat’ is stronger than mouse？” “Yes, but...”The man thought and thought and then decided his cat’s name had better be “Cat” because a mouse was always afraid of a cat. Don’t you think Mr King is v ery silly（傻的）or funny？( ) 24. His cat’s first name was ________ .A. SkyB. CatC. WindD. Cloud( ) 25. He decided his cat’s last name was ________ .A. MouseB. WallC. CloudD. Cat( ) 26. Mr King gave his cat ________ names in all（总共）and at last he called it “Cat”.A. sixB. fiveC. fourD. twoCEveryone knows that exercise is important. We all need to exercise. Doctors say it is good for us. It keeps our bodies strong.When the daytime comes, we must get up. This is the time for exercise. Exercise means doing things with the body. There are many ways to exercise. You can walk, run, swim, skate, or play ball games. Make sure you exercise in the following ways: You have to like what you're doing. Exercise enough-but not too much. It is best to exercise twice a week. Thirty minutes each time is enough. Try all kinds of things until you find one, two or even three sports that you feel right for you. Exercise can be fun. Friends can exercise together at a fitness centre, or they can play sportstogether. How do you exercise?( ) 27. Which of the following sports can't we find in the passage?A. Fishing.B. Running.C. Swimming.D. Walking. ( ) 28. What does exercise mean?A. It means doing things with the body.B. It means studying.C. It means doing lessons.D. It means playing. ( ) 29. What can exercise do to the body?A. It can make the body weak.B. It can make us sleep more.C. It can make the body sick.D. It can make the body healthy.( ) 30. The underlined words ‘fitness centre' in the passage mean ‘______’ in Chinese.A．减肥中心B．健身中心C．购物中心D．医疗中心四、词汇A、根据上下文，将句子补充完整，每空一词。

昆明2024年05版小学K卷英语第4单元暑期作业(含答案)

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