初二上册八年级寒假作业答案(精选五篇)
在暑假来临之际,关于学生暑假作业的话题又热了起来,暑假期间学生们少不了要完成一本本老师布置的暑假作业。为方便同学们检查自己做的作业,以下是:八年级(初二)上册寒假作业答案,供大家参考!
八年级寒假作业答案第二部分:数学
勾股数(1) 1.C 2.D 3.60/13cm 4.13 5. 连接B、D,36cm26.C
勾股数(2)1.C 2.B 3.A 4.130 5.24
实数1.A 2.C3.正负根号5 4.2倍根号2 5.05.1
6.(1)2倍根号2 (2)根号3(3)14+4倍根号3(4)6
P22平移与旋转
一:AB二:7.5 60
P23
6.(2)解:∵正△ABC
∴AB=BC
又∵△abd由△ABC旋转
∴△abd≌△ABC
∴AB=BC=AD=dc
∴四边形abcd为菱形(其他的找不到!!!)
八年级寒假作业答案第一部分:语文
p1:
一、1.èzèmò fú zāngyōu 2.噤砾箧裁谬疟3.C 4.B 5.B
P3
三、趣味语文:瞒天过海 围魏救赵 偷梁换柱 以逸待劳 趁火打劫 声东击西
10(1)百 十(2)万(3)千 三(4)八 百 五 十
P43.C 4.D5.B
二、渴慕.震悚.霹雳狼籍.滞笨.唏嘘.烦躁.吊唁.呵斥
P6
三 1 说出来让大家开心开心2 在放弃之前放弃努力
四 背诵积累
客 亲前 后生 死祸 福
P7
一 基础知识
cang zi xiaozhou xun zhang
榭 镂 帷 凿 壑 伦
B D
P8
5.轻捷与潇洒 悲忿而苍凉是的,因为前者的态度达观向上,值得学习。
6.《中国石拱桥》的语言精炼、准确;本文语言典雅、舒和。
P9
三 趣味语文B C D A
四 背诵积累陋室 黄鹤楼 岳阳楼 承天寺
P10 ni xi lan bo yin yan咎 绮 藩 褶 衍 翩 改错 ;两栖(qi) 殷(yan)红
A C D
P11
6.仿生手 生动形象地写出仿生手的神奇,吸引读者
7.不可以,这个词表示时间范围,若删去,则句子意思变为任何时候都会做脚,与现实不相符合,这个词体现了说明文语言的准确性。
8.列数字 科学准确的说明了我国肢体残疾的人数之多,突出了仿生手的作用之大
P12
10.二 三 四 五11.(1)落晖 (2)落日 (3)夕日 (4)日暮 (5)落日 (6)夕阳 (7)斜阳
p13
1.yǎn xiè tiáo yè zhuàn dú
2(1)阡陌:田间小路 (2)扶: 沿;顺着
(3)规:计划 (4)津:渡口 (5)属:类
(6)蕃:多 (7)馨:香气,这里指品格高尚
(8)鸿儒:博学的人 (9)宜:应当 (10)因:顺着、就着
p15
(1)田家 (2)渝州(3)江南 (4)东城
P16
1.sù tuān gě qiúxī shù
2.(1)奔: 飞奔的吧 (2)属: 动词,连接(3)歇: 消散 (4)颓: 坠落(5)但: 只 (6)仅: 几乎(7)沃: 用水林洗 (7)强: 尽力
p18
12(1)到(3) 雁 (4)和(5) 燕
八年级寒假作业答案第五部分:历史、社会
判断题
第一单元:
1.对错错对错2.(1)⑤④②①③(2)②①③⑤④
ABEFcdg
P70aefBcdg
第二单元:
错错对错错
历史73页连线
一 连②连1 二连④连2三连①连4四连③连3
第三单元:
错对错错对错错对对错
2.一连②连3二连③连2三连①连1
历史 第二单元
P73
(2)尼罗河定期泛滥--发达的农业---村落的形成---手工业....----尼罗河两岸的小国....---初步统一的古埃及国家----地跨...
P74:
二.1.(1)图一,古埃及--象形文字,金字塔,太阳历(2)图二,古印度---佛教,数字符号(3)图三:古巴比伦 --楔形文字,空中花园,几何学,太阴历
2.乔达摩·悉达多佛教是三大佛教最早创立的,宣扬“众生平等”公元前后,传入中国
3.《汉莫拉比法典》反映了当时奴隶主拥有至高无上的权利
P75
1.图一 象形文字图二 楔形文字图三 甲骨文
2.生活中动物的形状、自然现象
3.说明人类走向了文明
3.尼罗河 BC3500两河 BC3500印度河 恒河 BC2500长江、黄河 BC2070(2)促进农作物生长、土地肥沃、适合人类居住
P80
错错对错对错对对对对
孔子 玄奘 李白
岳飞 黄道婆 毕升
第5题:赤壁之战是208年,三国是220-280年,赤壁之战是确立了三国鼎立的基础;第8题:北宋,
八年级寒假作业答案第三部分英语
P37happy1
一
what a melody(悦耳) song it is!
what a fast boy he is !
what a heavy girl she is !
what a beautiful school it is !
what a good boy he is !
what a beatific(幸福) boy he is!
#p#副标题#e#二
is cleaned
were taken
is maken
was showed
are inviten
wasn't gave
was slolen ; was found
三
turtle
tiger
japan
Mexico
tiger
sierra leone
P39.
一:
better best havier heaviset
more most older oldest
bigger biggest more expensive most expensive
more smart most smart better known best known
more badly most badly less leas
more carefully most carefully fewer fewest
more slowy most slowy thinner thinnest
more healthy most healthy more easily most easily
hotter hoyyest oftener oftenest
farer farest larger largest
P40
一:
plan to do 计划做某事 He planned on taking his vacation in july.
hope to do 希望做某事 We hope to see you soon.
agree to do 同意做某事 No results found for agree to do.
refuse to do 拒绝做某事 She asked him for a loan, but he refused.
finish doing 完成某事(后面就不打某事..到时记得自己加上哈)Have you finished reading that magazine?
enjoy dong 擅长....I enjoyed reading these books very much.
practise doing 练习...I practise my swing.
suggest doing 建议..I suggest our going to the park on Sunday
admit doing.承认... I admitted breaking the window.
deny doing否认...He denied having seen these watches before.
arrange for 安排...I’ve arranged for a taxi.
offer to do 提供They offered to help me
like/love+doing喜欢.. She likes playing the piano
hate to do 遗憾...He hated to have quarrelled with her.
hate to do 讨厌 He hated to have quarrelled with her.
remember to do 记住去做某事 Do you remember her telephone number?
remember doing 记得做过某事 I remember telling you about it once.
forget to do 忘记去做某事 I forgot posting the letter.
forget doing 忘记做过某事 Don't forget to post the letter.
p43
动词 过去式 过去分词
be was been
cook cooked cooked
know knew known
swim swan swam
get got got
teach tought taught
leave left left
fell felt felt
smell smelt smelt
drive drove driven
run ran run
think thought thought
keep kept kept
buy bought bought
begin began began
do did done
cost cost cost
find found found
throw threw throw
stand stood stood
动词 过去式 过去分词
speak spoke spoken
come came come
give gave given
hear heard heard
send sent sent
hurt hurt hurt
see saw seen
steal stole stolen
take took taken
sleep slept slept
sit sat sat
meet met met
bring brought brought
fly flew flown
wake woke waken
choose chose chosen
lose lost lost
read read read
rise rose risen
wear wore worn
P50
Early to bed
Get up early to exercise every day
To eat less fatty food and more milk.
Do not eat too many sweet can cause obesity.
In the case of hot weather drink plenty of water.
Can not drink beverages,drink plenty of water.
In the winter changes according to the right to add their own clothes to not cath a cold
The eyes will not watch TV much,so choose the appropriate time watching TV.
Playing games in not good for mental and physical,we need to less play
八年级寒假作业答案第四部分:科学选择题
专题一
1. ACBD 增大 100% 降水
P66
1.①水果导电性与它的酸性有关 ②水果导电性与它本身的质量无关 2. 乙 避雷针 躲入建筑物内或就地蹲下
专题二
P55 压力不变时,受力面积减小,压强增大。BBCCBD 受力面积 压强 490 增大 水的密度不变时,越深,水内部压强越大
P57
1.B 2.A A 暖 40 高压 冷锋 晴朗干燥 甲乙 A
专题三二、1、B 2、(1)A (2)A(3)平流,50%-60%。
3、(1)高压系统,冷锋系统,晴朗。
(2)江苏。
专题四二、1、A 2、B 3、C 4、D三、(1)难溶,乳浊。(2)会使鱼类大量死亡,破坏生态平衡。
专题五
一、略。二、1、C 2、B 3、C 4、C 5、D
专题五
1、C 2、B 3、C 4、C 5、D
P62
#p#副标题#e#四、糖尿病饮食包括主食:如粳米、富强粉;含热能低的食物如:青菜、白菜、黄瓜、冬瓜、番茄、豆腐、黄豆芽等;还有少量的瘦猪肉、鸡蛋。糖尿病的病人禁食葡萄糖、蔗糖、麦芽糖等纯糖食品
专题六
二、1、C 2、C 3、D 4、B 5、(1)非条件反射。(2)无效。(3)条件。
专题七
二、1、D 2、D
P66
1.①水果导电性与它的酸性有关 ②水果导电性与它本身的质量无关
2. 乙 避雷针 躲入建筑物内或就地蹲下
专题八
一、略。二、1、结论一:苹果的导电性与苹果的的味道有关,且苹果越甜,导电性能越强。结论二:苹果的导电性与苹果的质量,体积无关。
2、(1)乙。(2)避雷针。(3)先把身上的金属物品抛开,然后躲进大楼内。