七年级英语寒假作业(7-9)
七年级英语上册寒假巩固练习题一、英汉互译。
多少钱给你不客气看一看… 两美元什么颜色以一个好价钱亲自来看看大廉销生日聚会演讲比赛郊游, 校游篮球赛艺术节几岁15岁看电影什么种类京剧动作片电影明星在周末中国历史最喜欢的演员interesting thing rock bandkung fu English clubplay chess speak Englishplay the guitar play the pianoplay the drums play the trumpet play the violin go to schoolgo to bed go to workget up be good withwhat time at five-thirtytake a shower after breakfastafter class after schooltake the bus take sb. to …get home go homedo homework help… withhave math Chinese teacheron Monday on May 2ndon Sunday morning at home二、根据首字母填空。
AIt’s Sunday m________. It’s a little cold. Sandy gets up very early. She puts onher white T-_______ and dark blue p_____ . She likes these two c______. She wantsto go s_________ with her mother because she w______ to buy some exerciseb______. At 9:00, they are in a supermarket. There are a lot of p_______ in themarket. The c______（服务员）there are very f_______（友好的）.BThere are s______ students in my group. Sam’s birthday is in J_______. It’s thefirst m______ of the year. Ruth’s birthday is in M______. It’s after Women’s Day .Jack was born on J_____ 1. It’s also Children’s Day. Will and Tina were born in thet______ month---O_________. They are proud（自豪的）they have the sameb_______ as our country. My birthday is in the last month---D________. W_____ isyour birthday? Can you tell us?CO______ Sundays, we like g_______ to the movies. My f_______ movies aret______. Some people thin k they’re scary but I like t______ very much. I don’t liked___________ because they are boring. But some people like them because theylearn about h_______ and other things. I o_____ go to movies w_____ my classmates. But now I’m very busy I don’t have t______ to see movies.三、完成句子。
1．我们有一些红色的鞋子。
We have red2.他以便宜的价格买下这双袜子。
He will buy the socks ________________________.3.这些衣服仅卖20元。
你可以亲自来看看。
The clothes __________20yuan . You can __________________.4.这件蓝毛衣多少钱？__________________ is the _______ sweater?5.你妹妹的生日是什么时候？八月一日。
__________ your ________ bithday? _____ birthday is ________.6.我们学校每年都举办英语晚会。
We __________________________ each year at our school.7.他喜欢打排球。
He lkes _____________________________.8.校庆是什么时候？在四月。
_____________ is the ___________? It’s ___________.9.戴维九月五日生日。
__________________ is September _______.10．你爸爸几岁了？30岁。
___________ your father? He is _______.11．约翰想去看电影吗？不，他不想。
______ Jhon want to ________________? No, he _________.12．我想看喜剧片和恐怖片。
I want _______comedies _____ thrillers.13．他想让我帮他。
He _____ me ________________.14．这部电影确实令人激动。
This movie ______________________.15．有关历史方面的东西，我学到了许多。
I ______ a lot ______ history.16．周末他经常在家看电视。
He often ________ Tv at home ______ . 17．吉姆认为他不喜欢数学。
Jim ____________ he _________math.18．你喜欢哪种书？故事书。
_____________________do you like? I like story-books.四、写出下面单词的复数：1.pen_________2.strawberry__________3.watch__________4.key___________5.dictionary_____6.backpack__________7.brother____________8.tomato_________9.hamburger__________10.egg__________ 11.basketball_________12.skirt_____________13.documentary_________14.student_______五、写出下面名词所有格：1.Jeff_________2.Mr Chen_____________3.Tina_______4.friend_________5. mother__________6.John______7．他妈妈的房间_____________ 8.汤姆的叔叔_________________ 9.这位演员的短裤_______________10.琼的铅笔_______________六、写出下面基数词和序数词：1.八__________2.三_________3.十五________4.第二________5.第三________6.第十二_____7.第四________8. 第九________9.第二十一_________10.第三十________11.第二十六________12.第二十八________13.第二十___ 14.二十七___________15.三十一________16.二十七_________七、写出下面动词的第三人称单数：1.go__________2.play_________3.watch_________4.learn__________5.study_______6.like________7.listen_______8.work_______9.brush_______10.have___________八、选词补全短文They are in Beijing . He is twelve this year. He is a. student in a school. He has a sister. name is Jones. She is five. She is a student. She often stays at home and the guitar. She wants to join the music club. Her guitar teacher is Cindy. She helps his sister the guitar on weekends. His sister can play it well. She Cindy very much.九、June really see Chinese action movies. She thinks they are very exciting She documentaries are boring, and she doesn’t like thrille rs. She thinks they scary. She also likes Beijing Opera. Some people don’t like it, but she thinks it is very interesting. She thinks shecan about Chinese history. She wants Beijing Opera. with her friends十、按要求改写句子，每空一词。
1.She wants to buy a shirt.（变成否定句）She to buy a shirt.2.Peter likes action movies because he thinks they’re interesting.（划线提问）does Peter action movies?3. How old is your brother? (同义句)your brother’s ?4. June likes Chinese action movies. (一般疑问句)June Chinese action movies？5.I can join the art club.（就划线部分提问）_______ _________can you join ?十一、根据汉语，完成下列句子。
七年级《快乐寒假》寒假作业英语答案
七年级《快乐寒假》寒假作业英语答案市一中七年级英语寒假作业答案 (一)一、单项选择。
1-5 BCACD6-10 DBDCD11-15 BDCAD二、单词拼写。
16. closed 17. expensive 18. through 19. lying 20. fit21. Finally 22. sheep23. Children’s 24. Shopping 25. countries三、动词填空。
26. doesn’t go 27. is28. matches 29. to raise 30. organizing31. look32. celebrating33. listening34. is playing35. will fly四、翻译。
36. My cousin was born in Bei __g, but he lives in Suzhou now.37. What do you think of your new school? / How do you like your new school?38. Look! The children are playing a game called ‘trick or treat’.39. Is there a discount on last year’s trainers / sports shoes?40. --- What’s your shirt made of?--- Cotton. / It’s made of cotton.五、书面表达。
Now, more and more students’ bodies are getting worse. There are many reasons.Firstly, most students don’t eat healthily. They eat too much meat, and often eat sweet food, snacks and fast food. Secondly, they don’t have a healthy lifestyle. They don’t often take exercise, but watch TV or play puter games for a long time. Finally, most students like to wear modern clothes. Some clothes are too tight. They are not good for health.I think we should eat fruit, vegetables and rice often. We should drink enough water every day. We should exercise more. We should keep doing morning exercises and eye exercises. We should often wear loose and fortable clothes.A good diet and a healthy lifestyle can make us live longer.市一中七年级英语寒假作业答案（二）一、1-5 CBDCC 6-10. BBDBD11-15. ＣＡＤＢＡ二. 16.teeth 17.visiting18.made 19.February 20.colorful21.seldom22. Reading 23.first 24.mine 25. Both三.连词成句26.Thank you for telling me about China.27.Kitty is eating lunch at the moment .28. Is there any beef in the fridge?29. What do you have for supper?30. Daniel chooses trainers because they are fortable.四、句子翻译。
七年级英语冀教版 寒假作业(7)
寒假作业（7）一、单选题1.—Excuse me, _____ is this T-shirt?—It's 88 yuan.A.how muchB.how manyC.how longD.how old2.My mother usually _______ emails to her friends on Saturdays.A.writeB.is writingC.are writingD.writes3.—How many _______ do you have?—Three.A. booksB.boxC. libraryD.key4.I _______ know your address(地址).A.doesn'tB.don'tC.notD.am not5.She likes _______ best of all the vegetables.A. carrotsB.eggsC. orangesD. pears6.It's seven o'clock. It's time ______ breakfast.A. forB.toC.ofD.in7.—The box is too heavy to carry. What's in it?—Oh, it's ______ books.A.filled ofB.popular withC.full ofD.asked for8.—Would you like ______ some Chinese food?—Yes, please. It's very delicious.A.haveB.to haveC.havingD.has9.The watermelon is _____ big for me, and I don't have _____ money to buy.A.too many; much tooB.much too; too manyC.much too; too muchD.too many; too much10.Here are _______. Would you like to have one?A.two glass of juiceB.two glass of juicesC.two glasses of juiceD.two glasses of juices二、填空题11.John can't find his jacket. He ______ (think) he lost it.12.Mike's and Bill's ______ (money) is in their bags.13.Bob ______ (not like) French fries.14.It's too late. I have to ______ (go) home now.15.—______ your sister ______ (buy) that purple coat?—Yes. She likes it very much.三、完形填空Hello, my name 1 Dave. I 2 sports every day and I'm very healthy(健康的).I eat a lot of fruit and 3 . For fruit, I like apples, oranges, pears and 4 . For vegetables, I like tomatoes and 5 . I don't like ice cream. I like chicken 6 dinner every day.I like playing sports, too. I 7 in the morning. I like Lin Shuhao. Do youlike 8 ? Yeah, he is a good 9 player. I like basketball, too. I play it every afternoon. It is not difficult for me. Healthy 10 and lots of sports make me healthy.1.A.is B.am C.are D.be2.A.give B.play C. borrow D.go3.A.eggs B. vegetables C.rice D. salad4.A.ice cream B.bananas k D.potatoes5.A. oranges B. candy C. carrots D. chicken6.A.of B.for C.in D.on7.A.run B.sleep C.eat D. drink B.him C.he D.his9.A.volleyball B. baseball C. football D. basketball10.A. medicine B. colours C.food D. clothes四、阅读理解A. Noodles.B.Pie.C.Rice.D.Fried chicken.2.What drink is the most expensive(昂贵的)?k.B.Coffee.C.Orange juice.D.Cola.3.How much will you pay (付) if you want a plate of dumplings and a Beijing Roast Duck?A. ¥35.B.¥40.C.¥57.D.¥59.五、写作英语课上,学生们正在准备举行以"真实自我"为主题的活动。
七年级学英语报纸寒假版参考答案
完形填空
1-5 ACADD6-10 BCBDA
阅读理解
1-5 CBCAD
书面表达
One possible version:
Hello, everyone.
I have a healthy lifestyle. Every morning I exercise with my father. We oftenrun and play basketball. I have a good eating habit. I try to eat more fruit and vegetables, and I hardly ever eat junk food. I drink milk every morning. I think it’s good for my health.
Ⅲ. 1. have2. asks3. walk4. are5. doesn’t
6. fails7. to use8. forgets9. likes10. comes
Ⅳ. 1. can finish ill play with
4. are going to the museum 5. If you need it
句型演练
Ⅰ.1.beauty2.sightseeing3.to have4.friends5.send
6.places7.take8.to teach9.leave10.will have
Ⅱ.1.have to2.in the centre of3.so that
4.as; as we can5. walk along
第9版寒假作业（九）读写综合篇
补全对话
A篇1-5FDCEA
B篇1-5FGDAB
2023初一年级上册英语寒假作业答案大全10篇
2023初一年级上册英语寒假作业答案大全10篇盼望着盼望着，一年一度的寒假开始了，又到了使劲完成寒假作业的时间了，各位同学都想要参考寒假作业的答案吧?下面我为大家收集整理了2023初一年级上册英语寒假作业答案大全10篇，欢迎阅读与借鉴!初一年级上册英语寒假作业答案1活动一：1. 单项选择。
(1) b (2) c (3) a (4) b (5) a2. 补全对话。
(一)(1) are(2) fine(3) thanks(4) whats(5) its(二)(6) nice(7) is(8) this(9) welcome(10) thank活动二：1. 请选择下表中的单词完成对话，填在对话后的横线上。
(1) me(2) pen(3) you(4) your(5) color2. 完成句子，每空一词。
(1) what color is, white(2) whats, a computer game(3) the key, lost, found(4) please call, at, morning(5) is, cousin, these, parents(6) whats(7) what is3. 阅读理解(1) t (2) f (3) t (4) f (5) f活动三：1. 句型转换。
(1) are they, they are(2) what is this(3) is he, he is(4) photo of(5) thanks for the photo of your family.2. 完成对话：在对话后面的句子中选出正确的答案填入空白处。
(1) c (2) e (3) a (4) b (5) d活动四：1. 选择题。
(1) d (2) a (3) b (4) a (5) a2. 改错，把错误的选项写在前面的括号里，然后将其改正在后面的横线上。
(1) b 去掉are(2) c 改为at(3) b 改为playing(4) b 改为plays(5) b 改为buy3. 用代词填空。
最新七年级英语寒假作业
最新七年级英语寒假作业最新七年级英语寒假作业一、读两段对话A.Kangkang: Michael, could you please do me a favor?Michael: Sure. What is it?Kangkang: We will have a soccer game against Class Four this Saturday. But one of my teammates fell ill. Will you join us?Michael: Id be glad to. But I am not really good at it. Would you mind teaching me?Kangkang: Not at all. You can do it! Lets go and practice.B.Kangkang: Could you please tell me your plans for this year?Ming: Sure. In March, I will take part in the games in France. In June, I will be in Korea. And in August, I will be in Russia.Kangkang: Thats a lot of traveling.Ming: Yes, its a lot. But I love traveling. I enjoy playing in different countries.Kangkang: When did you start playing basketball?Ming: When I was seven years old.Kangkang: You have a very exciting life now, Ming.Ming: Exciting? Yes. But very tiring as well.二、背一段短文BasketballJames Naismith was a Canadian. He invented basketball in 1891. At that time, he was a P. E. teacher at Springfield College, in the U.S.A He invented an indoor game for his students so that they could play it even in bad weather.Do you know how to score points in the game? Well, just put the ball into the other sides basket. You can throw the ball into the basket from any part of the court. And you can throw it with one hand or both hands. But you must follow the rules.Now, over a century later, more and more people play basketball. In the U.S.A., the NBA is very popular. People from all over the world like to watch and play basketball. They love this game.三、学几个单词或句型1. 单词：favor n. 好事，恩惠，帮助teammate n. 队友ill adj. 生病的fall ill 患病，病倒be glad to 乐意于……mind v. 介意，关心n. 思想，想法tiring adj. 令人疲劳的，令人感到累的as well 也，还有invent v. 发明，创造college n. 学院，专科学校indoor adj. 室内的even adv. 甚至;更score v. 得分;进球n. 分数，得分throw v. 仍，掷，投court n. 球场，运动场，法庭，法院follow v. 遵守规则;跟在后面;仿效century n. 世纪，百年more and more 越来越(多的)2. 句子1) Michael, could you please do me a favor? 迈克尔，请你帮我个忙好吗?could 在此句中不表示过去时态，而是表示委婉请求对方做某事。
七年级英语寒假作业
七年级英语寒假作业（一）Starter Unit 1~Unit 9一、将下列短语或句子翻译成英语。
1、你妈妈（身体）好吗？2、一张我父亲的照片3、爸爸的工作4、我的同班同学5、有礼貌又乐于助人6、多大（岁数）7、一个英国男孩8、高兴的和悲伤的9、他们的狗10、一个矮个子男孩11、五个美国女孩12、来自英国13、在椅子后面14、在讲台上15、你迟到了16、参观我的学校17、一个美丽的花园18、一个漂亮的女孩19、当然20、在大门前21、在操场中央22、在树下面23、在公园的左边24、在Lily和Lucy之间25、在ABC公园26、不要爬树27、一些冰淇淋28、他弟弟的新鞋29、妈妈的黄衬衫30、一个橙色的橘子31、我们的自行车32、我的旧手表33、我们的灰色的收音机34、一些漂亮的发夹35、我姑姑的宠物36、我明白了37、为什么不38、看那个标志39、在网上查找资料40、在图书馆喧哗41、把你的包带来42、吃零食43、把报纸带回家44、找一个正确的地方45、等绿灯46、过马路47、在超市的前面48、等待…49、骑自行车50、玩电脑游戏二、根据句意及其中文或所给首字母填空。
1、Please b your homework next Monday.2、I want to (观看) the football match on TV.3、The baby is sleeping. Don‟t (喊叫).4、There are (运动) shoes in the locker.5、Who (有) a dog in your class? Many students have.6、(谁的) skirt is pink? Lily‟s.7、Some people in Africa (非洲) has (棕色) hair.8、There is a (鸟) in the tree.9、Jim is on my left, Kate is on my right. I‟m b Jim and Kate.10、The door is (开着的).11、Can you c the hill(小山).12、There are two (百) students in the hall.13、There are nine (数字) on the blackboard.14、Look! This is my (教室).15、I have a (新的) friend. He is Nick.16、Jim has a (副) of glasses.17、(小鸡) are very lovely animals. I love them.18、E , may I ask you some letters.19、(用) the pen to write letters.20、When the l is red, you can‟t cross the road.21、-- How many libraries are there in your school? -- There‟s o one.22、Here‟s the (花园).23、Please help me (拿走) these trousers away.24、I have a new (自行车).25、(带) your English book here. There is an English lesson in the morning.26、(在旁边) the door, there‟s a green ball.27、I like buying things in the (超市).28、We often (聊天) with each other.29、I don‟t (知道) that boy.30、I have a radio. What a you?三、根据所给词语的适当形式填空。
七年级英语创意寒假作业
七年级英语创意寒假作业
一、制作单词卡片
1. 选择你最喜欢的50个英文单词，可以是形容词、名词、动词等，将它们写在卡片上。
2. 为每个单词配上一幅简笔画，让单词更生动有趣。
3. 收集这些卡片，每天复习一遍，增强记忆。
二、观看英语电影或动画片
1. 选择一部你喜欢的英语电影或动画片，观看过程中尽量关闭字幕。
2. 记录下你听懂的单词或句子，以及不明白的地方。
3. 观看完后，与家人或朋友分享你的学习成果，并讨论电影中的情节和人物。
三、英语日记
1. 每天写一篇英文日记，记录当天发生的事情和感受。
2. 尽量使用所学过的语法和词汇，如有需要可以查阅字典。
3. 每周选出最好的一篇日记，与同学分享。
四、英语歌曲翻唱
1. 选择一首你喜欢的中文歌曲，将其翻译成英文。
2. 学习这首英文歌曲的旋律和歌词，并尝试翻唱。
3. 录制你的翻唱歌曲，并分享到社交媒体上，让更多人听到你的作品。
五、英语角活动
1. 参加一次英语角活动，与来自不同背景的英语爱好者交流。
2. 准备一个话题，如旅游、美食、电影等，与他人展开讨论。
3. 活动中注意自己的发音和语调，尽量模仿母语者的表达方式。
以上是七年级英语创意寒假作业的五个项目，同学们可以根据自己的兴趣和能力选择适合自己的项目来完成。
希望这个寒假大家都能有所收获！。
2024年寒假作业七年级英语全册通用版
2024年寒假作业七年级英语全册通用版Unit 1 Getting to Know Each OtherIn this unit, students will learn how to introduce themselves and others, ask and answer questions about personal information, and talk about hobbies and interests. Key Vocabulary:1. introduce2. personal information3. hometown4. nationality5. hobby6. interestGrammar Focus:1. Present Simple tense for introducing personal information2. Question forms using 'What', 'Where', 'Who', 'How'3. Verb 'to be' for describing nationality and hometown Key Phrases:1. Hello, my name is...2. I am from...3. I like to...4. My hobbies are...5. What is your nationality?6. Where are you from?Unit 2 Family and FriendsIn this unit, students will learn how to talk about their families and friends, describe family members, and discuss relationships.Key Vocabulary:1. family2. relative3. friend4. brother5. sister6. cousinGrammar Focus:1. Possessive adjectives for family members2. Simple past tense for describing past events3. Comparative adjectives for describing relationships Key Phrases:1. I have a big family.2. My sister is younger than me.3. My best friend is...Unit 3 Daily RoutineIn this unit, students will learn how to talk about daily routines, describe activities they do every day, and discuss their schedules.Key Vocabulary:1. routine2. activity3. morning4. afternoon5. evening6. scheduleGrammar Focus:1. Present Simple tense for daily routines2. Time expressions for different parts of the day3. Adverbs of frequency for describing how oftenactivities are doneKey Phrases:1. I wake up at...2. I have breakfast at...3. I go to bed at...By studying these units, students will have a solid foundation in English language learning and be better prepared for their future studies. Good luck with your English learning journey!。
初一英语寒假作业
初一英语寒假作业
一、7份练习（七上期末试卷）
2月1日--2月3日完成练习一
2月4日--2月6日完成练习二
2月7日--2月9 日完成练习三
2月10、11日Happy Spring Festival!
2月12 日--2月15 日完成练习四
2月15 日--2月17 日完成练习五
2月18日--2月20 日完成练习六
2月21 日--2月23 日完成练习七
二、练习英文字帖
可以去书店或者网上买一本配套七（上）的英文字帖来练习，开学时整本上交检查。
三、做好复习和预习
1.建议期末考130分以上的同学提前背诵七（下）的单词和课文；
2.期末考130分以下的同学，抓住这个长寒假重新背诵七（上）课本，一个一个单词背诵、一篇一篇课文过关。
Come on! You can do it!。
7年级上册寒假作业答案(共8篇)
7年级上册寒假作业答案(共8篇)7年级上册寒假作业答案（一）: 云南出版集团公司云南教育出版社优质课堂初中七年级上册英语寒假作业答案孩纸,作业是要自己完成滴.不过要是你实在不想写,那就买一本去吧,开心一寒假,只要一点钱.而且,我也搜过答案,无果.网上答案最好别信,因为8成是瞎写滴.作业老师不会检查的英语大部分都是选择题嘛你要不高兴做随便写写涂涂就行了赞同294|评论(7)7年级上册寒假作业答案（二）: 寒假作业多长时间写完大家看一下我的作业单,：数学语文外语三本练习,（我有答案可以抄）新目标7年级上每单元单词两遍（所有单元）七年级上所有3A一遍. 写三篇读后感,5篇日记,字体一本我就这些作业,请问狂写多长时间,就是从早到晚的写,多长时间数学语文外语三本练习抄答案1天,新目标7年级上每单元单词两遍（所有单元）七年级上所有3A一遍0.5天,写三篇读后感,5篇日记,字体一本 1.5天So,1+0.5+1.5-努力程度+放弃程度=寒假作业写完的时间3（天）7年级上册寒假作业答案（三）: 七年级寒假作业语文的阅读《我的作文从写信开始》第一题,《我爱孩子的十个理由》第4.6题《第三十三夜》第7题,作业5第1.2题,《游记两篇》第7题,《家住田野青纱帐》第8题,《大熊猫静媛的故事》第1.2题大哥大姐，帮个忙爱死你们啦~\(≧▽≦)/~啦啦啦悬赏也很高~\(≧▽≦)/~啦啦啦《我的作文从写信开始》第一题我有点自卑,但从未放弃,我写作的态度,远远超过写老师课堂上布置的作文,我就在这样的表的与发现中开始了作文,我就在这样的徘徊与等待中靠近了作文,直到有一天,我的信在电台里播出.感受与体会受到挫折只要坚持不懈,努力奋斗,就会成功《我爱孩子的十个理由》第4题第6题只需要联合生活实际谈谈自己的感受字数超过一行方可得分《第三十三夜》第7题与下文对孩子们的细节描写做铺垫,因为下文中任何一句都是突出孩子们的天真与童趣的《游记两篇》第7题是将主观深切的感受融入生动细腻的景色描写之中,生动形象的描写基础加入了饱含感情的议论与抒情.我是这么写得不知道对不对就知道这么多了7年级上册寒假作业答案（四）: 3.14－圆周率的绝对值＝（）快点急需答案!是7年级数学寒假作业 57页填空题|3.14-π|=π-3.14.7年级上册寒假作业答案（五）: 六年级上册寒假作业答案【7年级上册寒假作业答案】第一题 1night 2 cheir 3mather 4 jeep 5pencle 第二面 1天=24小时（16:30-15:30）-（21:00-19:00）=3小时 3/24=1/8 2 9:30-8:30=1小时1/3=1/3第六页的第二题 1/3=1/3分米 1/2=1/2分米（1/3×1/2+1/2×1+1/3×1）×2=2dm2 2×6=12dm2工具表格提供的信息,圈出正确答案 1 shorter 2 tallest 3shorter第十一页对话排序 2 3 5 4 1 三十七页独一无二 1 first 2 april 3winter 4 was 5 swinmming 五、第七页填成语的求大同、趣味连接,和工具表格提供的信息,圈出正确答案：“填成语” 吃一堑,长一智.求大同,存小异.十年树木,百年树人.道高一尺,魔高一丈.“趣味连接”：赵钱孙李,李钱孙赵,孙李钱赵写过去式.are( were )go ( went )eat( ate )watch( watched)2.写出比较级和最高级.big( bigger )( biggest )fat( fatter )( fattest )short( shorter )( shortest )heavy( heavier )( heaviest )落叶→小草→蚜虫→小鸟p6: 知识训练园 1*1*6+1*6 =6+6 =12《歌唱祖国》《吉祥颂》、《祖国你好》、《中国的希望》《爱我中华》p7 1长一智 2存小异 3百年树人 4魔高一丈1页 B《春天的故事》古筝葫芦丝琵琶月琴唢呐 OK,按顺序写上的.【7年级上册寒假作业答案】7年级上册寒假作业答案（六）: 小学四年级上册北师大版数学寒假作业答案（北师大版）小学四年级数学寒假作业湖北P20把酒分匀：张三和李四各有一个装有酒的酒瓶,两人想把酒分匀.李四先把自己瓶中的酒往张三瓶中倒,使张三的酒成了原来的2倍,又把张三的酒往自己瓶中倒,使自己瓶中的酒增加到3倍.这样倒了两次,还是没有分匀,张三瓶中有酒 160克,李四瓶中有酒120克.问两人瓶中原来各有多少酒解析：用倒推法.第二次是“张三给李四倒酒,使李四瓶中的酒增加到3倍”,这时李四瓶中有120克.可知在张给李倒酒前,李四有酒：120 ÷ 3 = 40（克）这次张三倒给李四的酒是：120 - 40 = 80（克）张三倒给李四80克酒后,张三还有酒160克,说明在给李四倒酒前（也是李给张倒酒后）,张三有酒：160 + 80 = 240（克）第一次是李四给张三倒酒,使张三瓶里的酒成了原来的2倍,倒后张三有酒240克.这240克酒中有一半是张三自己的,另一半是李四倒给张三的.那么张三原有酒是：240 ÷（1+1）= 120（克）李四原有酒是：40 + 120 = 160（克）或 160 + 120 - 120 = 160（克）P16井底小虫：一只小虫不小心掉进了井里.它每天不停地往上爬.不幸的是,它每天白天能往上爬3米,可是一到夜里就要滑下2米.但是小虫还是坚持往上爬.这口井从井底到井口是20米.小虫从清晨开始从井底往上爬.它需要几天以后才能爬出井口呢解析：最后一天：爬三米就爬出井口了,不下滑 20-3=17米17米/（3-2）米=17天17+1=18天有几个零1×2×3×……×100的积末尾有几个零答案是24个.解析：从1到10,连续10个整数相乘：1×2×3×4×5×6×7×8×9×10.连乘积的末尾有几个0答案是两个0.其中,从因数10得到1个0,从因数2和5相乘又得到1个0,共计两个.刚好两个0会不会再多几个呢如果不相信,可以把乘积计算出来,结果得到原式=3628800.你看,乘积的末尾刚好两个0,想多1个也没有.那么,如果扩大规模,拉长队伍呢譬如说,从1乘到20：1×2×3×4×…×19×20.这时乘积的末尾共有几个0呢现在答案变成4个0.其中,从因数10得到1个0,从20得到1个0,从5和2相乘得到1个0,从15和4相乘又得到1个0,共计4个0.刚好4个0会不会再多几个请放心,多不了.要想在乘积末尾得到一个0,就要有一个质因数5和一个质因数2配对相乘.在乘积的质因数里,2多、5少.有一个质因数5,乘积末尾才有一个0.从1乘到20,只有5、10、15、20里面各有一个质因数5,乘积末尾只可能有4个0,再也多不出来了.把规模再扩大一点,从1乘到30：1×2×3×4×…×29×30.现在乘积的末尾共有几个0很明显,至少有6个0.你看,从1到30,这里面的5、10、15、20、25和30都是5的倍数.从它们每个数可以得到1个0；它们共有6个数,可以得到6个0.刚好6个0会不会再多一些呢能多不能多,全看质因数5的个数.25是5的平方,含有两个质因数5,这里多出1个5来.从1乘到30,虽然30个因数中只有6个是5的倍数,但是却含有7个质因数5.所以乘积的末尾共有7个0.乘到30的会做了,无论多大范围的也就会做了.例如,这次乘多一些,从1乘到50,答案是12个0 .这个“乘积”问题实质上考的是“质数与合数”的知识点本题目所涉及的几个数学定理包括一、质数是指仅有1和它本身两个约数的自然数,像2、3、5二、合数是指除了1和它本身以外,还有其它约数的自然数,像4、6、8三、1既不是质数也不是合数四、整数A能被整数B整除,A叫做B的倍数,B就叫做A的因数1×2×3×4×5×…×3000的积的尾数有几个0假设M=1×2×3×4×5×…×3000因为2×5＝10,所以末尾的零只能由中的质因数2与5相乘得到.因此,只需计算一下,把M分解成质因数的连乘积以后,有多少个质因数2,有多少个质因数5,其中哪一个的个数少,M的末尾就有多少个连续的零.解先计算M中质因数是5的个数.在1,2,3,…,2998,2999,3000中,3000/5=600即有600个5的倍数,它们是：5,10,15, (3000)在这600个数中3000/25=120,即有120个中,能被25整除,它们是25,50,75, (3000)在这120个数中3000/125=24,即有24个能被125整除,它们是125,250,375, (3000)在这24个数中3000/625=4,有4个能被625整除,它是625,1250,1875,2500. 所以,M中的质因数5的个数等于600+120+24+4=748而M中的质因数2的个数,显然多于质因数5的个数.所以,1×2×3×4×5×…×3000中,末尾连续有748个零.7年级上册寒假作业答案（七）: 人民教育出版社授权二年级语文寒假作业上册有参考答案吗英语 1.There was an airplane_____last night a.clash;b.crash B 2.The _____around my house is turning green. a.glass;b.grass B 3.Did you enjoy watching the______at the circus a.crown;b.clown A 4.What"s the US dallar to British pound exchange______ te;b.rate B 5.Didyou_____the ofice door a.lock;b.rock A 6.Drinking alcohol can damage your ____ a.river;b.liver B 7.Go down the ______slowly in your car. mp;b.ramp B 8.He was barely ______after his car crashed.a.alive;b.arrive A 9.I want to pay my ________now. a.bill;b.beer A10.There is usually more_____in big caties. a.climb;b.crimb B11.The_____of the candle went out. a.frame;b.flame B 12.Let"s_________before the forest fire comes to our farm. a.free;b.flee B 13.It"s against the________to park here. w;b.raw A 14.He_______me his car for rhe weekend. a.lent;b.rent A 15.It"s a _______way fromLos Angeles to Tokyo,Japan. a.wrong;b.long B 16.Therobber______________the television from the shop. a.Wall;b.War A17.Many birds __________by my house in the spring. a.fry;b.fly B18.The water level in the river is very_____. a.row;b.low B 就这么多. 有江苏教育出版社的吗麻烦采纳,谢谢!7年级上册寒假作业答案（八）: 五年级上册数学三维作业答案急!我们的寒假作业!帮帮忙啦!使用运算符号和括号，使下面各等式成立。