苏教版初二暑假作业语文&英语答案

我只有物理、数学、英语，没语文，希望你能给我满分
暑假作业英语答案
练习一
present
since
doctor
pollution
open
DABAC BBADB
has taught
married
swim
came have been
have lived was
练习二
changes
seen
in fact
marry
southern
enjoyed ourselves
won’t until
have been married
has kept
different from
AADBD ABB
练习三
possible
service
although
attraction
present
have since
How many
When buy
Have carried
got → been
didn’t → hasn’t
sadly → sad
but → /
already → yet
next to
has been opened
any more
how to get
It’s to read
There are came
but came
have known
are interested in
练习四
CBACD B
not arrived yet
How long been
How long heard
Has ever been
Has changed yet
I have lived here since I was born
It’s happy to play Chinese chess with my classmates
Though Tom was ill, he went to school
Where’s Mary? She has gone to the cinema
Have you ever been to Beijing? Yes. I have been there
I used to play computer games, but now I’m not
练习五
a theme park
fast-food
wave to us
get married
during the summer holiday
at a high speed
feel exciting
a whole day
go touring
wait for an hour
stop taking photos
have/has gone to Shanghai
have/has been to Shanghai
on the second day
careful carefully
helpful helpfully
hopeful hopefully
wonderful wonderfully
noisy noisily
healthy healthily
lucky luckily
shiny 不知道
impolite
impossible
unkind
unpleasant
cheerless
harmful
different
present
although
lovely
present
pleasant
sure
go back
performer
sail
development
closer
education
feeling
discusser
meaning
练习六
have seen saw
were doing was helping do
was watching knocking
made stop to read
Was dancing
not to take
were clapping were marching
The souvenirs are so expensive that I can’t buy them
He has enough money to travel around the world
What were you doing when he arrived
Daniel was swimming in the lake at noon yesterday
unnecessary
delightful
as
fat
Italy
happy
meaning
excited shouted
练习七
out
morning
called
office
surprised
tickets
back
cinema
themselves
thieved
CDCAC BACBA
练习八
has been away from Shanghai for two days
couldn’t stop taking photos with them, because they looked very cute
have been in Hong Kong for a week
have been to Hong Kong twice
has already gone to Hong Kong been away for two days
is quite different from it in Beijing
never forget this meaningful experience
did you come back from Hong Kong arrived the day before yesterday,I have already been back for two days
作文略
练习九
information
change
enjoy
screen
online
start
restart
is designed by
e-dog for
wasn’t night
has lived for
important
used
to go
sold
more
libraries
made
will replace
pleasant
to buy
练习十
ABBCD ADA
funny
printer
designed
looking
written
correctly
educational knowledge
passed
at the same time
come out
send e-mails
get scores
order a package on the Internet
different clouds
play the role of
have a dream
many places of interest
be sold out
search for information
a remote control
word processing
a ten-year-old boy
play the role of
fall asleep
use widely
double click on the icon of
What do you usually used computer for
The computers are designed for the students
What do you want to buy I want to buy a personal computer
She will help you if necessary
练习十一
was left
is double clicked
was produced
is put
keep
BCDBA
练习十二
levels
character
uses
village
jump
goal
ask
knowledge
need
designed
written
start
has worked
is caught
are marked
typing
was broken
was lost
was made
is used
be clicked
Party things: cake chocolate Coke iced tea orange juice biscuit sweet chip
Stationary: pen ruler desk
Electrical appliances: computer air-conditioner e-dictionary television radio

暑假作业数学答案
练习一
BAABA B
=-0.5 =0.5
a-b -2 a^3-a^2b
19:13
60x^2 y^2
Y=x - a分之3
练习二
DCCDA
12
3。068×10^7
-3.48×10^-5
2
10
3 7
练习三
X≥1且≠2
(-1,2)
Y=12+2x
-2＜x＜-0.5
三
DCCCA
练习四
BBCCA A
y=x+5
-2
4
3
练习五
BDCBA
反 正
-5
5
-2＜x＜0 和 x＞1
y= -x分之1

初二暑假作业答案
练习六
CCDAD
BF=CF ∠B=∠C
3
120°
8cm
36°
练习七
ADCBB
∠ABC=∠DCB
3 △DCF≌△BAE △CFO△≌EAO △CDO≌△ABO
根号2
90°
AD 45°
练习八
CCCDB
对角线相等
对角线互相垂直
对角线互相垂直且相等
AD BC
平行四边形
AB=CD
练习九
CCABB
互相垂直平分 互相垂直 相等
正方 正方
AF=FD
练习十
90° 18° 252°
16 15.5
略
6 12 40
20 20% 71～80
CAACA
练习十一
2.83
7
2(x平均数) S^2
4.4
7 7 3 1.2 乙
BBCDD
练习十二
≠±1 2
-x^5 y分之1
（-1，6）
Y=-x分之1
x≥3且x≠-0.5
＞2 三
m＜3分之2
95°
10
12
3.16
10
67.5°
DBDBD BCCCB
练习十三
x^2 -4分之x^2+4x+9
2
-5
-7
Y=6x-2
二四 增大
1＜m＜2
有两个锐角互余的三角形是直角三角形 真
8
8
圆心角
6
6
AB=AC
ACDAB BB
练习十四
2
3.1×10^-4 4.56×10^4
(-2分之3, 2分之5 )
根号2
-a分之2b
X=2
根号2
107°
∠B=∠E
30cm
3
CDDAB DDC
练习十五
＞-2
x+y分之x^2 +y^2
85
-6
-3分之4 3分之5
m＜0.5
减小
3
26cm
40°
ADBAC CCCDC
练习十六
ACCCB 1或1.5
3分之5或 -1
-1或2
1 (-4)
2x^2 +5x+2

第一天

一

1.匀速直线 3m/s 2.1200 1200 竖直向上 1200 3. 小于 等于 大于 4. 0.98 0.98

5.后 摩擦力 向前运动 惯性 6. （1）运动员跳远时要助跑一段距离 （2）汽车驾驶员要系安全带

7.（1）速度 （2）摩擦力 速度不便一直运动下去 牛顿第一（惯性） 8. 70 在箱子下面装上滑轮

9.（1）力的作用是相互的 （2）力可以改变物体的运动状态

二

1.B 2.B 3.A 4.C 5.B 6.C 7.D 8.C 9.D 10 C

三

（1）物理现象：弹簧片被压顽 物理知识：力可以改变物体的形态

（2）物理现象：被弹簧片打击后的木片飞出去 物理知识：力可以改变物体的运动状态

第二天

一

1.静止 匀速运动 静止 匀速运动 2.惯性 原来的状态 力 3.右 4.大于 等于

5.惯性 重力 阻力 运动状态 6.增大 不变 7. 5 水平向右 10 . 10 右 加速直线

8. 磁性黑板的摩擦力 9. 0 10

二

1.D 2. D 3.C 4.C 5. B 6.C 7.A 8.B 9.D 10.B 11.C

三

1.略 2.（1）A,E,H C,F B,G (2) 前 （3）略

3.光滑 相等 木块翻转 大小相等，方向相反，作用在同一直线

第三天

一

1.维持物体运动 改变物体运动状态 2.49000牛 49000牛 3.重力 改变物体运动状态

4.匀速直线运动 0 5. 20 20 减小 6.大于 784牛 7.相等 8.改变物体运动方向 9.摩擦

重 非平衡力 10.右 惯性 静止 11.等于 小于 大于

二

1.B 2.B 3.D 4. D 5.B 6.C 7.A 8.B 9.C 10.B

三

略

四

1.静止 转动 转动 二力平衡的条件 2.等于 弹簧测力计的示数等于物体的重力

弹簧测力计的示数大于物体的重力 3.重力的方向总是竖直向下的 二力平衡的条件

第四天

一

1.绕某一固定点转动 2.动力 阻力 支点 支点 距离 阻力作用线的距离

3.静止 匀速转动 4.动力乘以动力臂等于阻力乘以阻力臂 F1Xf1=F2Xf2

5.40 6. 36 竖直向上 4 竖直向下 7.1/3 3 1 8. 近 远

二

1.D 2.C 3.C

三

略

四

1.弹簧秤 平衡螺母 动力 动力臂 阻力 阻力臂 动力乘以动力臂等于阻力乘以阻力臂 能

2.C 3. 0.392 大于 4. （1）B 调节平衡螺母是杠杆在水平位置平衡

（2）动力乘以动力臂等于阻力乘以阻力臂

5.（1）右 右 水平 测量力臂 （2）个数 位置 在水平位置平衡

（3）动力乘以动力臂等于阻力乘以阻力臂 （4） 12厘米

第五天

一

1.省力 大 2.等臂 3. 9.8 4. 6 5. 40牛

6. 0.9 500 7. 省力 B 增大 8.竖直向上 15

9. 0.45 0.75

二

1.B 2. B 3. A 4. B 5. A 6. A 7. C 8. D 9.C

三

(1)竖直向上 4牛 (2)方向该为与OA夹30度斜向上

四

水平 力臂 左 左 (1) 15.2 (2)动力臂错误

第六天

一

1.滑轮的轴 轴心 轴心 物体 2. 改变用力方向 省力 3.等于 4.直径

半径 一半 5.改变用力方向 上 100牛 6. 3牛 7.不能 600牛

8. 使用动滑轮可以省一半力 拉力的方向改变,拉力的大小也 改变

二

1. A 2. D 3. A 4. D 5. C

三

1. (1) 29.4牛 (2)4.9瓦 2. (1)10牛 40焦 20牛

第七天

一

1. 作用在物体上的力 物体在力的方向上通过的距离 2. 1200 10 0

3. 29400 49 4. 150 5. 0 500 6. 18000000 9000

7. 1000 0 8. 0 0 9. 800000 80000 10 .40 1

二

1. A 2. B 3. A 4. D 5. B 6. D 7. D 8. A 9.B 10.D 11.D

三

1. 196000焦 2. 4000000焦 3. 65牛 65牛 4. 2.5米 5. 乙 甲

第八天
一
1.物体在单位时间 做功快慢 瓦 2.1000 3.1500 0.2 4. 14400 960
5. 50 0 5 6.8000 2000 7. 0 100 8. 2:3 2:3 9. 20 40 10 .120000 2000瓦

二

1. C 2. A 3.A 4. C 5. A 6. B 7. B 8. C 9. B 10.C 11.A

三

1.(1)500焦 (2)50克 2.(1)13500000焦 (2)45000瓦 3.(1)400焦 (2)20瓦

第九天

一

1.运动而具有 质量 速度 质量 速度 2.被举高而具有 质量 高度 质量 高度

3.发生弹性形变而具有 弹性形变 形变程度 形变程度 4.不变 变小 变小

5.变大 不变 变小 6.相等 7.动能 势能 功 焦 8.重利势 动 摩擦 机械 内 9.弹性势 弹性势 动 重力势 10.动 重力势 重力势 动

11. 14焦

二

1. D 2. C 3.C 4.A 5.D 6.C 7.D 8.B 9.D

三

1.（1）甲与乙 （2)C 它对纸盒做功最多

同志，不觉得这年头答案难找么
我只有英语
只想找语文的
可是就是找不到
英语的和那个人一样，就不发了，希望你好运

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