2017年八年級(jí)寒假作業(yè)答案大全(深圳出版社)
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數(shù)學(xué)答案：
勾股數(shù)(1)
1.C 2.D 3.60/13cm 4.13 5. 連接B、D，36cm2
6.C
勾股數(shù)(2)
1.C 2.B 3.A 4.130 5.24
實(shí)數(shù)
1.A 2.C
3.正負(fù)根號(hào)5 4.2倍根號(hào)2 5.0
5.1
6.(1)2倍根號(hào)2
(2)根號(hào)3
(3)14+4倍根號(hào)3
(4)6
P22平移與旋轉(zhuǎn)
一：AB
二：7.5 60
P23
6.(2)解：∵正△ABC
∴AB=BC
又∵△ABD由△ABC旋轉(zhuǎn)
∴△ABD≌△ABC
∴AB=BC=AD=DC
∴四邊形ABCD為菱形英語(yǔ)：
英語(yǔ)答案
happy1
一
what a melody(悅耳) 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!
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 計(jì)劃做某事 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 拒絕做某事 She asked him for a loan, but he refused.
finish doing 完成某事(后面就不打某事..到時(shí)記得自己加上哈)Have you finished reading that magazine?
enjoy dong 擅長(zhǎng)....I enjoyed reading these books very much.
practise doing 練習(xí)...I practise my swing.
suggest doing 建議..I suggest our going to the park on Sunday
admit doing.承認(rèn)... I admitted breaking the window.
deny doing否認(rèn)...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喜歡.. She likes playing the piano
hate to do 遺憾...He hated to have quarrelled with her.
hate to do 討厭 He hated to have quarrelled with her.
remember to do 記住去做某事 Do you remember her telephone number?
remember doing 記得做過(guò)某事 I remember telling you about it once.
forget to do 忘記去做某事 I forgot posting the letter.
forget doing 忘記做過(guò)某事 Don't forget to post the letter.
p43
動(dòng)詞 過(guò)去式 過(guò)去分詞
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 costfind found found
throw threw throw
stand stood stood
動(dòng)詞 過(guò)去式 過(guò)去分詞
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
科學(xué)選擇題答案：
專題一
1. ACBD 增大 100% 降水
P661.①水果導(dǎo)電性與它的酸性有關(guān) ②水果導(dǎo)電性與它本身的質(zhì)量無(wú)關(guān)
2. 乙 避雷針 躲入建筑物內(nèi)或就地蹲下
專題二
P55 壓力不變時(shí)，受力面積減小，壓強(qiáng)增大。
BBCCBD
受力面積 壓強(qiáng) 490 增大 水的密度不變時(shí)，越深，水內(nèi)部壓強(qiáng)越大
P57
1.B 2.A A 暖 40 高壓 冷鋒 晴朗干燥 甲乙 A
專題三
二、1、B 2、(1)A (2)A(3)平流，50%-60%。
3、(1)高壓系統(tǒng)，冷鋒系統(tǒng)，晴朗。
(2)江蘇。
專題四
二、
1、A 2、B 3、C 4、D
三、
(1)難溶，乳濁。
(2)會(huì)使魚(yú)類(lèi)大量死亡，破壞生態(tài)平衡。
專題五
一、略。
二、1、C 2、B 3、C 4、C 5、D
專題五
1、C 2、B 3、C 4、C 5、D
P62 四、糖尿病飲食包括主食：如粳米、富強(qiáng)粉;含熱能低的食物如：青菜、白菜、黃瓜、冬瓜、番茄、豆腐、黃豆芽等;還有少量的瘦豬肉、雞蛋。糖尿病的病人禁食葡萄糖、蔗糖、麥芽糖等純糖食品
專題六
二、1、C 2、C 3、D 4、B
5、(1)非條件反射。
(2)無(wú)效。
(3)條件。
專題七
二、1、D 2、D
P66
1.①水果導(dǎo)電性與它的酸性有關(guān) ②水果導(dǎo)電性與它本身的質(zhì)量無(wú)關(guān)
2. 乙 避雷針 躲入建筑物內(nèi)或就地蹲下
專題八
一、略。
二、1、結(jié)論一：蘋(píng)果的導(dǎo)電性與蘋(píng)果的的味道有關(guān)，且蘋(píng)果越甜，導(dǎo)電性能越強(qiáng)。
結(jié)論二：蘋(píng)果的導(dǎo)電性與蘋(píng)果的質(zhì)量，體積無(wú)關(guān)。
2、(1)乙。
(2)避雷針。
(3)先把身上的金屬物品拋開(kāi)，然后躲進(jìn)大樓內(nèi)。
歷社判斷題
第一單元：
1.對(duì)錯(cuò)錯(cuò)對(duì)錯(cuò)
2.(1)⑤④②①③
(2)②①③⑤④
ABEF
CDG
70頁(yè)
AEF
BCDG
第二單元：
錯(cuò)錯(cuò)對(duì)錯(cuò)錯(cuò)
歷史73頁(yè)連線
一 連②連1
二連④連2
三連①連4
四連③連3
第三單元：
錯(cuò)對(duì)錯(cuò)錯(cuò)對(duì)錯(cuò)錯(cuò)對(duì)對(duì)錯(cuò)
2.一連②連3
二連③連2
三連①連1歷史 第二單元
P73(2)尼羅河定期泛濫--發(fā)達(dá)的農(nóng)業(yè)---村落的形成---手工業(yè)....----尼羅河兩岸的小國(guó)....---初步統(tǒng)一的古埃及國(guó)家----地跨...
127樓
歷史P74：
二.1.
(1)圖一，古埃及--象形文字，金字塔，太陽(yáng)歷
(2)圖二，古印度---佛教，數(shù)字符號(hào)
(3)圖三：古巴比倫 --楔形文字，空中花園，幾何學(xué)，太陰歷
2.喬達(dá)摩·悉達(dá)多
佛教是三大佛教最早創(chuàng)立的，宣揚(yáng)“眾生平等”公元前后，傳入中國(guó)
3.<漢莫拉比法典>
反映了當(dāng)時(shí)奴隸主擁有至高無(wú)上的權(quán)利
歷史第四單元80頁(yè)
錯(cuò)錯(cuò)對(duì)錯(cuò)對(duì)錯(cuò)對(duì)對(duì)對(duì)對(duì)
孔子 玄奘 李白
岳飛 黃道婆 畢升
第5題：赤壁之戰(zhàn)是208年，三國(guó)是220-280年，赤壁之戰(zhàn)是確立了三國(guó)鼎立的基礎(chǔ);
第8題：北宋，
歷史P75
圖一 象形文字
圖二 楔形文字
圖三 甲骨文
2.生活中動(dòng)物的形狀、自然現(xiàn)象
3.說(shuō)明人類(lèi)走向了文明
3.尼羅河 BC3500
兩河 BC3500
印度河 恒河 BC2500
長(zhǎng)江、黃河 BC2070
(2)促進(jìn)農(nóng)作物生長(zhǎng)、土地肥沃、適合人類(lèi)居住
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