中學八年寒假作業答案

2017中學八年寒假作業答案

　　寒假作業有了新的定義;少數學校展開了素質實踐活動，將寒假作業變成活動，豐富學生們的課余生活;總體來說.寒假作業給學生帶來了不少負擔。下面是小編整理的關于中學八年寒假作業答案，歡迎參考!

　　數學答案：

　　勾股數(1)

　　1.C 2.D 3.60/13cm 4.13 5. 連接B、D，36cm2

　　6.C

　　勾股數(2)

　　1.C 2.B 3.A 4.130 5.24

　　實數

　　1.A 2.C

　　3.正負根號5 4.2倍根號2 5.0

　　5.1

　　6.(1)2倍根號2

　　(2)根號3

　　(3)14+4倍根號3

　　(4)6

　　P22平移與旋轉

　　一：AB

　　二：7.5 60

　　P23

　　6.(2)解：∵正△ABC

　　∴AB=BC

　　又∵△ABD由△ABC旋轉

　　∴△ABD≌△ABC

　　∴AB=BC=AD=DC

　　∴四邊形ABCD為菱形英語：

　　英語答案

　　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..到時記得自己加上哈)Have you finished reading that magazine?

　　enjoy dong 擅長....I enjoyed reading these books very much.

　　practise doing 練習...I practise my swing.

　　suggest doing 建議..I suggest our going to the park on Sunday

　　admit doing.承認... I admitted breaking the window.

　　deny doing否認...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 忘記做過某事 Don’t forget to post the letter.

　　p43

　　動詞 過去式 過去分詞

　　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

　　動詞 過去式 過去分詞

　　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

　　科學選擇題答案：

　　專題一

　　1. ACBD 增大 100% 降水

　　P661.①水果導電性與它的酸性有關 ②水果導電性與它本身的質量無關

　　2. 乙 避雷針 躲入建筑物內或就地蹲下

　　專題二

　　P55 壓力不變時，受力面積減小，壓強增大。

　　BBCCBD

　　受力面積 壓強 490 增大 水的密度不變時，越深，水內部壓強越大

　　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，冷鋒系統，晴朗。

【中學八年寒假作業答案】相關文章：

2017中學八年級數學寒假作業答案03-09

八年級上冊寒假作業答案03-09

八年級語文上冊寒假作業答案03-08

八年級上冊語文寒假作業答案03-09

八年級長江寒假作業答案201703-09

2017八年級上冊寒假作業答案「完整」03-09

2017年八年級上冊寒假作業答案03-08

2017年八年級上冊語文寒假作業答案03-09

人教版八年級上冊英語寒假作業答案201703-08