2022七年级暑假作业本各科答案
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2021七年级暑假作业本各科答案_2021初一暑假作业本各科答案
在不知不觉中,七年级下学期就这样结束了,暑假已经来临了。同学们除了放松心情玩耍外,还要准备时间写暑假作业,做完暑假作业的同学也不要过于放松,快来对对答案查漏补缺吧!下面小编给大家带来2021七年级暑假作业本各科答案,希望能帮助到大家!
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七年级暑假作业本语文答案
1.(1)chēnzhàdǎoxiè(2)DBCA(3)排比,对比
2.悚,筹,彰,芸芸,孜孜,姗姗
3.略.(所写诗句中,掉一字,错一字,多一字者,均扣一分,每诗扣完4分为止)
4.黄梅戏,《天仙配》,鲁莽,凶诈
5.(1)示例:拒绝诱惑,远离网吧;严禁玩火;不下塘游泳;不进入成人娱乐场所.
(2)略
6.(1)带我去看(采)蒲公英;为我缝了一个绣着蒲公英的花书包;为我做了一件蒲公英的连衣裙;给我寄了一幅开满蒲公英的水彩画.(4分)(2)线索作用.(2分)
7.妈妈想让我像蒲公英一样,飞出大山到外面的世界,去闯荡出自己的一片天地.
8.在妈妈的引导下,我确立了奋斗的目标;(1分)它一直激励着我努力进取,不断前进.(2分)
9.生动传神地写出了我在妈妈的教育下,在理想的激励下努力求知,积极进取,快乐成长的情景.
10.示例:妈妈一遍又一遍地读着诗行,然后把散发着油墨清香的报纸和杂志放在脸上摩挲着.她深情地遥望着远方,眼里闪烁着晶莹的泪花,脸上却绽放出开心的笑容.(抓住"激动"和"高兴"想象即可)
11.(1)妈妈的教育,引导让我确立奋斗的目标,为我插上飞翔的翅膀,让我学会了飞翔;(2)妈妈的不断激励让我不懈追求,努力奋进,勇往直前,飞得更高.
12.活泼,不怕生人,会逗人娱乐.
13.因为它似乎太活泼了;一点儿也不怕生人,有时跑到街上,在那里晒太阳,我们担心它被人捉走.
14.(1)不能."很"字表明我们为它担心的程度高.去掉"很"字,就不能表现我们对它十分喜爱和在乎的心理.(2)不能."居然"表明小黄猫能捉到一只很肥大的鼠,大大出乎我们的意料,也表现出我们很惊喜的心理.
15.不是偶然的.
(1)小黄猫本身太活泼,不怕生人,有时跑到街上去晒太阳.
(2)那种夺人所爱,损人利己的"过路人"并不乏见.
(3)还有周家的丫头那种人,一点不仗义,事不关己,冷眼旁观.
16.(1)也(2)夹杂着(3)即使(4)消失
17.(1)(即使)一个人有上百张嘴,嘴里有上百个舌头,也不能说清其中的(任何)一处声音.
(2)在这种情况下,客人们没有一个不吓得变了脸色,离开座位,扬起袖子,露出手臂,两腿索索直抖,几乎要争先恐后地逃跑.
18.很多人的大呼声,很多人的哭声,很多的犬吠声.
19.从侧面表现了这场演出对听众具有巨大的吸引力,从而烘托口技表演者技艺的高超,增强了文章的感染力.
数学七年级暑假作业答案
(一)
1.气球下降6米2.0,03.-3,3,34.5,-4,05.>,<,=6.0
7.368.略9.B10.B11.C12.B13.正整数:10,+68;负整数:-20;正分数:0.22,+9.78,0.3,+;负分数:-2.5,;正有理数:10,0.22,+9.78,+68,0.3,
+;负有理数:-2.5,-2014.数轴略,-3<-|-2|<0<-2.5的相反数<4
15.(1)4,6,-4(2)略16.2009
(二)
1.(1)-6(2)-42.-9+2-7-5+43.54.-105.A6.D7.A
8.(1)-30(2)-3.5(3)19(4)-29.±2,±1410.(1)9
(2)-498,4,50611.(1)略(2)π-3.14(3)
(三)
1.(1)18(2)28(3)-72(4)02.略3.04.D5.D6.C
7.(1)2(2)2(3)6(4)08.略9.(1)<,<,>,>,>
(2)nn+1<(n+1)n(0(n+1)n(n>2)(3)>
(四)
1.-2,2,42.2,2,-43.04.千,35.D6.C7.C8.D
9.(1)809.79(2)0.083(3)5480万(4)9.7×10710.(1)-9(2)16
(3)(4)(5)72(6)11.略
(五)
1.,±6,±22.13,-3.略4.55.D6.B7.C8.D
9.(1)±4(2)-10.0.49111.=2秒,19.6÷340≈0.057秒,最后的结论由学生定12.略
(六)
1.1.3m2.3.略4.6x-4y,-a-b+c5.a+d=b+c6.-117.B
8.C9.B10.(1)0(2)17x-111.-612.(1)y=20.2x(2)161.6元
13.(1)计时制:3x,包月制:50+1.2x(2)3x=3×30=90元,50+1.2x=50+1.2×30=86元,所以包月制合算
(七)
1.x=22.略3.-14.-15.46.C7.B8.D
9.(1)x=(2)x=11(3)x=0(4)x=10.(1)3x=x+4(2)x+3=x-2
(3)-x=|x|-611.(1)五个数的和是16的5倍(2)5x(3)5x=2010,得x=402,而402排在第一列位置,所以五个数的和不能等于2010
(八)
1.3x=x+102.-73.34.1.15.B6.A7.C8.C9.x=5
10.调往甲处17人,调往乙处3人11.2250元12.略13.(1)一道正门和一道侧门每分钟分别可以通过120名和80名学生(2)符合安全规定
(九)
1.条形统计图,折线统计图,扇形统计图2.68.63.略4.D5.B
6.略7.(1)观察记录(2)略
(十)
1.(1)20%(2)102.6515.23.A4.D5.(1)a+1.6(2)5月3号最多,5月7号最少,他们相差1.4万人(3)略
(十一)
1.102.153.B4.C5.D6.D7.略8.D9.略
10.线段AC、BD的交点即为蓄水池P的位置11.1,3,6,10(1)45
(2)
(十二)
1.360,1802.CD、EF、GH3.504.C5.C6.D7.D
8.(1)32°15′36〃(2)35.43°(3)240分,4度(4)56°20′9.α=80°,β=100°
10.略11.(1)∠COD=25°,∠BOD=155°(2)略
(十三)
1.B2.C3.D4.C5.D6.B7.A8.C9.A10.B
11.±212.略13.-,414.∠COD与∠DOE15.816.happybirthday17.318.-6x19.(1)200(2)4020.3n+2
(十四)
1.(1)-4(2)-232.(1)y=1(2)ab=-6(3)①x=;②a=3.略
4.略5.略
(十五)
1.6,AD、AE、DE,∠ADE、∠AED、∠DAE,AE,△FCB2.15厘米或18厘米,35厘米
3.107°4.58°,38°5.D6.D7.C8.B9.B10.4厘米与6厘米或5厘米与5厘米,5厘米与10厘米11.20°12.略
(十六)
1.122.1003.104.1405.406.90°7.0.98.(1)37.5°
(2)97.5°9.(1)(90+x)°(2)(90-x)°(3)x°
(十七)
1.D2.D3.D4.SAS5.86.略7.5厘米8.略
(十八)
1.D2.D3.B4.A5.C6.早7.58.59.略
10.(3)311.b(a-1)
(十九)
1.B2.C3.3∶14.305.126.1007.略8.(1)点A,45°
(2)AE(3)2平方厘米
(二十)
1.B2.B3.D4.,5.6.略7.(1)不确定事件
(2)必然事件(3)不可能事件(4)不确定事件8.略
(二十一)
1.A2.D3.C4.略5.6.7.,5
8.7.59.(1)(2)(3)(4)10.
11.12.-1
(二十二)
1.2.3.C4.C5.A6.笔记本每本2元,钢笔每支4元7.方案一:630000元,方案二:725000元,方案三:810000元,所以选择方案三
8.略
(二十三)
1.A2.D3.B4.B5.A6.(1)5a(2)6a2(3)(4)a5
(5)a(6)9a2b47.27,368.(1)16x4y12(2)a4b3(3)x2y(4)36(5)(6)(3x+2y)59.-12a4b210.(1)1016,1010(2)不相等
(二十四)
1.D2.B3.B4.A5.a2+2ab+9b2,a4-2a2b2+b46.-47.±18
8.89.(1)-x2y3+x3y-x2y(2)2x2-12xy+11y210.(1)2499
(2)1040411.3xy+10y2=3712.013.略
(二十五)
1.C2.D3.A4.-4x4y2,05.-4ab,8ab6.-4,17.-2.03×10-6
8.6,99.-210.10411.x2+4xy-y212.(1)1.5(2)-8x4y-10x3y2+9x2y3
(3)32x3y-8xy3(4)2a2b13.-6x+42=5414.32000个,32倍
15.n2+〔n(n+1)〕2+(n+1)2=〔n(n+1)+1〕2
初一暑假作业本英语答案
一、1~5. BDACC 6~10. CDAAA 11~15. DBACC
二、1~5. ACADC 6~10. CBCBA
三、1~5. CBAAD 6~10. BCDBA 11~15. BDCBD
四、1. wonderful 2. strange 3. surprised 4. memory . 5. through
6.dangerous 7.luckily 8.past 9.brave 10.members
五、1.You can get better grades if you try your best.
2.My brother spent a week teaching me how to play the guitar.
3.We should learn from the hard-working students.
4.We must arrive at the train station before 8.00 tomorrow morning.
5.Don't be afraid of the dog. It never bites.
单选题
D C A C B A C D B A B C B A D
完形填空
1.D 2.B 3.A 4.B 5。C 6.A 7.D 8.B 9.D 10.C
阅读理解
C A B B A C D
单词拼写
1.none 2.cook 3.poured 4.million 5.Remember 6.dangerous 7.wide 8.weighs 9.scientists 10.frightened 11.exit 12.missed
句型转换
11.How interesting the book is! What an interesting book it is !
12.Are they going to have a picnic this Sunday?
13.Don’t walk the dog every day.
14.Are those pencils Kitty’s?
15.H0w many classrooms are there in your school?
动词填空
1.1earning 2.are searching 3.Knocked 4.to worry 5.hunts 6.to:swim
7.not to chase 8..heard/shouting 9.will;come 10.Smoking
作文
Hi, everyone! The flood washed away our house, but I was lucky enough to stay alive with my family. Today I will tell you my dream home.
My new house is opposite a park and everyday I can hear birds sing happily. There are two rooms in my new home and I share a room with my brother. There is a football field in front of my house. After school, I can play football with my friends there. It is far away from the big cities., so the air is clean. Every it takes me
5 minutes to walk to school.
This is my dream home. I am looking forward to have it one day.
一、 1- 5:CDDDD 6- 10:ADCCD 11- 15 :BABDC 16- 20:CCABA
二、1 dangerous 2 frightened 3 scientists 4 twentieth 5 towards 6 practices 7 None 8 north-west
三、1 is knocking 2 bought 3 to learn 4 goes 5 playing 6 Don’t forget to take
7 doesn’t rain 8 Listening 9 will begin
四、1 What’s, weight of 2 couldn’t see anything 3 each of , has 4 Don’t take 5 Which book 6 How long 7 different from 8 What did , do