七年级上册寒假作业(七年级有寒假作业吗)
大家好,今天来为大家分享七年级上册寒假作业的一些知识点,和七年级有寒假作业吗的问题解析,大家要是都明白,那么可以忽略,如果不太清楚的话可以看看本篇文章,相信很大概率可以解决您的问题,接下来我们就一起来看看吧!
数学七年级上册寒假作业答案【六篇】
【作业一】

一、A,D,C,D,D,A
二、7)-5℃、0℃8)-1、-29)210)-211)5、-5、±512)a-b<a<a+b三、13)1、-60+40-82+82-16+38=22、102 p=""></a<a+b三、13)1、-60+40-82+82-16+38=22、102>
3、60+40+82+82+16+38=31814)解:由题可知a-2=0、a+b-5=0∴a=2;b=315)(1)10/11、(2)-(2015/2016)、(3)奇数位为负;偶数位为正的n/(n+1)16)(1)8-9+4+7-2-10+18-3+7+5=25、在A点的东方25㎞处(2)0.3×(8+9+4+7+2+10+18+3+7+5)=21.9(L)
17)解:由题可知,b=a+4∴b-2a=a+4-2a=5∴a=-1∴原点在A点右侧1单位距离的位置。
18)(1)1/9、-1/10、1/11、-1/150(2)1/9、-1/10、-1/11、-1/150
(3)1、-1/2、-1/3、1/2(150/4=37......2)
解:原式=(1/2-1/4)+(1/4-1/6)+...+(1/2012-1/2014)=1/2-1/4+1/4-1/6+..+1/2012-1/2014=1/2-1/2014=1006/2014=503/1007
【作业二】
一、B,A,A,C,C
二、6)380000、290000、5.70、199.17)0
8)±2或±4
9)±3、±4、±510)(1)0或4、1或3(2)3、2、0、±1三、11)(1)197/21、(2)-22/3、(3)7、(4)-14、(5)-2、(6)0、(7)64/9、(8)-48、(9)-1、(10)0、(11)-7/3、(12)-547/25、(13)899.5、(14)-45/11、(15)-29、(16)128/11
12)解:∵b<a<0<c∴b+a 0、a-c<0∴原式=-a-[-(b+a)]+(c-b)-[-(a-c)]=-a+b+a+c-b+a-c=a13)解:∵a-b=-1,b-c=1∴b=c+1a-b=a-1-c=-1∴c-a=0∴原式=(-1)2+12+0=2</a<0<c∴b+a
(1)B(2)A(3)12
【作业三】
一、C、C、C、B、C、D
二、7)-1/3,28)5,59)310)5-a,a-3,211)8(x-y)-5(x+y)12)70三、13)(1)5x-5y(2)a2-4a-2
14)xy2-x2y、-615)-816)1217)x2-πx2/4=(1-π/4)x23.4418)(1)8、10、4+2n(2)112(人)19)16、68、4n–4
(2)A(3)64,8,15、(n-1)2+1,n2,2n-1、2n3-3n2+3n-1
【作业四】
一、D、A、A、D、C
二、6)-37)-68)X+7+X+X-7=54、11,18,259)200010)66三、11)(1)-1、(2)-1/2(3)-20、(4)3、(5)112)a=513)-2814)2008
15)一中55人,二中45人,便宜725元16)X/5=(X-50-70)/3;5Y-3Y=50+7017)218)6
【作业五】
一、D、B、C、A、B二、6)(a-b)/27)2×12X=18(26-X)8)43809)11,210)50-8X=38三、11)解:设队伍长X千米,
X/(12-8)+X/(12+8)=14.4/60X=0.8(㎞)12)解:设某同学共做对X题,
5X-(20-X)=76X=16(题)
解:15a+2a(35-15)=275a=5(元/m3)解:设甲牧童有X只羊,
X-1=(X+1)/2+1+1X=7(7+1)/2+1=515)解:①15×10+5×5=175元②20×10×0.8=160元16)解:(1+0.14)/(1-0.05)-1=0.217)解:1)75、5252)(1060+375)/0.2=71757175-1000=61756175×0.2-525=710.3)设乙的应税金额为X元,
0.2X-375=0.25(X-1000)-975X=1700017000×0.2-375=3025
中考真题演练
1)D2)40
3)①解:设两地高速公路长X千米,
X/(4.5-0.5)-10=X/4.5X=360千米②295.4=(360-48-36)a+100+80+5a=0.4
【作业六】
一、C、C、D、B、C
二、6)三角形、扇形7)5、38)4厘米9)6、-210)n-1三、11)12)F、C、A13)3014)15)416)1、3、6、n(n-1)/2
17)四棱柱由三视图可知菱形的对角线分别为3厘米,4厘米∴菱形的边长为5/2厘米∴S侧=5/2×8×4=80(平方厘米)
18)解:设长方体盒子的宽为X厘米,则长为X+4厘米,高为14/2-X厘米X+4+2(14/2-X)=13X=5
∴长方体盒子的宽为5厘米,则长为9厘米,高为2厘米V=9×5×2=90(立方厘米)
19)先沿垂直的棱爬到上端,再沿对角线爬到苍蝇处。对角线距离最近。
2011七年级上册寒假作业答案(苏教版)
语文:
《管理自己也是一种伟大》阅读答案(第6页)
1本文介绍了王石善于“管理自己”的哪几件事?
答:1·再登珠穆朗玛峰时,不管别人说风景再好也不去看好风景,克制自己减少能量损耗。
2·再便宜面前坚持自己的原则,不去占便宜。
3·在往日朋友面前,不管朋友的翻脸都要坚持自己为自己定下的规定。
2本文为何对大刘的表现作了较详细的描述?
答:用大刘没有管理好自己的终而失败的经历反衬出王石能够成功是因为有很好的管理自己的能力,写出了管理自己的重要性。
3见习第三节划线句对人物运用了什么描写方法?有何表达效果?
(句子略)
答:这两句话对人物运用了语言描写,形象准确的写出王石在那么大的便宜诱惑之前都能够很好的管住自己,不被诱惑迷惑,坚持自己的原则。(这里也有中反衬的感觉,你可以写诱惑是如此之大,而王石却不为所动,反衬出王石那种能管理自己的伟大之类的。)
4文题“管理自己也是一种伟大”中的“也”是针对第六节中的那一句话说得?
答:“过去,我们老以为伟大是领导别人。”
5结合自己的生活实际。谈谈你对“管理自己也是一种伟大”的理解。
我在经常在考试前管住自己,不去玩游戏,减少娱乐从而使我专心复习,考试的时候就会考得很好。我从中得知不是管着别人才很伟大,真正伟大的人都能管制自己。(大概这些之类的,最好自己找一个例子。然后写上写评语)
《幸福的味道》阅读答案(第3页)
1、聊天只是一种形式,承载了本文的主题思想。正是因为父女之间的聊天,才表现出了主题。
2、哥哥给我讲故事,让我每天不再孤单
家里涂满了油漆,可是妈妈准备了凤梨皮,我就闻到了一种凤梨的香味
3、一颗对生活有细心的人,善于积累生活中点点滴滴的幸福。一颗感恩的心。
“草席上的茶叶香,刷满油漆的屋子里的菠萝香,原来都是幸福的味道,可是也要有一个嗅觉灵敏的鼻子啊!”结合短文说说你对这句话的理解。
幸福就在我们身边,只要我们有一颗感受生活的心,一双善于发现生活幸福的美得眼睛。。。就可以发现,生活得小小细节,也会充满幸福的气息!
第13页的两道选择题
BD
数学(15页答案)
1.0、1
2.运出4吨
4.-1 0 1 0
6.6
7.245
8(1)bac
(2)大于等于大于
二.选择题
BCADA
七年级有寒假作业吗
七年级是有寒假作业的。
寒假作业特指寒假内教师给学生布置的作业,由于时间较长,因此通常量较大。小学由四门到五门组成(语文、数学、科学、综合实践,三年级加英语)中学由七门到八门组成(语文、数学、英语、历史、政治,七、八年级加地理、生物,八、九年级加物理,九年级加化学)。寒假作业近年来有了新的定义,少数学校展开了素质实践活动,将寒假作业变成活动,丰富学生们的课余生活。同学们要认真完成作业,不断的提升自己,同时也从实践中锻炼自己。
七年级上册英语寒假作业答案
以下是由为您整理提供的关于七年级上册英语寒假作业答案的内容,希望对您有所帮助,欢迎阅读与借鉴。我温馨提醒同学们,最好做完作业再来与参考答案对照,不要一味的抄袭答案,这样会对学习有很大的帮助。
七年级上册英语寒假作业答案
P41页
一 helicopter abacus ferry ambulance handcuffs purse cycling trainer astronaut
二 one hundred and fifty-eight
two thousand and one
fourty-five percent
zero point twenty-five
six point zero three
sixty degree
six point fifty-nine
one thousand five hundred and seventy-one
one/sixth
three/fifth
P43页
一 play football wash his face play the violin make phone calls to **. arguing fishing
二(1)1,000、120、852(2)15、79、17、27、2,005(3) 3/10、3/5、3/7、7/9(4) 50%、75%(5)25°、160°
(5)0.78、11.45、21.13、57.22、6.5
P44页
(1)Sun is the only star in our salar system.
(2) It gives us heat and light.
(3) The moon is just 380,000 kilometers away.
(4) It looks much **aller because it is very for away.
(5) It takes four years for light to reach us from Alpha Centauri.
P47页
was/were cooked knew swam got taught leaved felt **elt drove ran thought kept bought began did
cost found throught stood spake came gave heard sold hurt saw steal took slept sit met brought flew
woke chose lost read rose wore
P48页
(1) Wat's your favourite sports?
(2) A man steal a purse from a tourist.
(3) They did cought the thief.
(4) Our class consist of 40 students.
(5) I aim the torch at his eye.
P49(横着写)
1、 I attend school everyday. I attended church yesterday.
I will be attending a concert tomorrow.
I have to explain why I am late everyday.
I explained the question to her two days ago.
I will be explaining the details next week.
The thief steals everyday.
He stole the wallet last Sunday.
They will be stealing the painting tomorrow.
She likes to invite people to her house everday.
She invited me to her party yesterday.
She invited me to her party yesterday.
She will be inviting me to her party tomorrow.
2、$75$60$15
P51-53
1、The boy went to the recepttion.
2、The boy is at the recepttion.
3 The boy is far from the recepttion.
4、The cat jumped onto the table.
5、The cat on the table
6、The cat fall off the table.
7、It is above the car.
8、It is below the car.
9、The boy is in front of the car.
10、The boy is behind the car.
11、The policeman is behind two cars.
12、The boy walks into the house.
13、The girl is in the house.
14、 The boy walks out of the house. The most important qualities:helpful,friendly,kind Reasons:I think make friends should care about each other,help each other. Feb 1: to clean up the house and prepare for reunion dinner; Feb 1 till mid night: to dine till 2359 hours for the new year; Feb 2: get lucky money Feb 2: to pay our senior member of the family visit and wish them a very prosperous new year; Feb 3: To visit our relatives and friend for new year;
P54走进大门的右侧是问讯处(formation desk)。鹦鹉馆紧挨着问讯处。如果需要饮料或想吃点东西,小吃部(cafeteria)就在鹦鹉馆的后面,所以有些嘈杂。狮虎山与鹦鹉馆相对,狮子在前,老虎在后。斑马在进大门左侧的第一个房子里。大象房正对着大门,而猴山则在挨着大象房的左角侧。袋鼠馆则在鹦鹉馆过去,紧挨着大象房的右角侧。最后,熊山在左侧的狮虎山和猴山之间。
P55
I always take a shower. I do the homework very often I often play football sometimes I watch the TV I never go shopping I don't often go to bed early o sometimes I go to bed early 1/The largest mammals in the world. 2/weight 3/White Rhinoceeros 4/100 feet long 5/8000 pounds 6/White Rhinoceeros In new year,my family want to travel,but every one have different ideas. so i look for many books,and i want go to beijin,because i think there is our capital city,i like the Great Wall and the imperial palace.and some food tastes delicious every year,a lot of visitors come to there. I think we have a good travel. P41 helicopter abacus ferry ambulance handcuffs purse cycling trainer astronaut one hundred and fifty eight two thousand and one 45 percent zero point two five six piont zero three sixty centigrade six pointi five nine one thouusand five hundred and seventy one one sixth threee fifth P48 what's your favorite sports? A man steal from a tourist a purse They did catch the thief Our class consist of 40 students l aim the torch at his eye.
P49
1、I attend school everyday. I attended church yesterday. I will be attending a concert tomorrow. I have to explain why I am late everyday. I explained the question to her two days ago. I will be explaining the details next week. The thief steals everyday. He stole the wallet last Sunday. They will be stealing the painting tomorrow. She likes to invite people to her house everday. She invited me to her party yesterday. She will be inviting me to her party tomorrow.
2、 75美元 60美元 15/75
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