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，豐富學生們的課餘生活;總體來説.寒假作業給學生帶來了不少負擔。下面是小編整理的'關於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(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!

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(後面就不打某事..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 denied having seen these watches before.