Question

广西师范大学出版社 网络助学工程配套用书 假日乐园 快乐寒假 九年级5门课答案

Answer 1

一、选择题
1.C 2.A 3.C 4.C 5.A 6.A 7.C 8.C 9.B 10.A
二、填空题
11.甲 省距离 12.把砖块前移 减小阻力臂 13.09 不能 14.30N 5W
15.80% 1800J 16.80% 20
三、解答题
（这个大家就自己作一下把,貌似我不会复制.....）

20.甲：省力但费距离 乙：省距离但费力
21.（1）71 0.6 0.7 （2）B （3）A （4）物重
22.（1）96W（2）91.67%（3）96.15%
23.(1)C(2)如右图所示(3)95.23%
24.(1)100N (2) 500N (3) 800N

一、选择题
1.C 2.B 3.B 4.C 5.C 6.D 7.C 8.D 9.C 10.C 11.B 12.D 13.B 14.C
二、填空题
15.0 30 16.重力势 动 弹性势 17.1：6 6：1 18.100 热值大 污染小
19.热量 比热容 20.内 机械 减小 降低 21.弹性势能 动 22.热传递 转移
做功 转化 23.> < 24.40 25.3.2×103J/(kg·℃)
三、实验题
26.白汽 做功 内 机械 液化
27.（1）大（2）增大 内（3）减小 增加（4）机械 内
28.Ⅰ 热牛奶和水温相同的温度 6.3×104J
四、计算题
29. (1)1.05×105J（2）3×105J(3)酒精不一定能完全燃烧，酒精产生的热量不能被水完全吸收
30.200kg 31.（1）14000s （2）0.93kg

一、填空题
1.其他形式 电 电 化学 2.并 串 3.短路 断路 通路 4.短 断 5.S2 S1 S3 S2、S1、S3 6.不工作 灯泡发光 并 7.红 绿 8.4 0 不能 6 9.化学 电 串
10.（1）电压 电流 电压（2）0.8 1.5

二、选择题
11.B 12.C 13.C 14.B 15.C 16.C 17.C 18.D 19.D
三、解答题
20.（1）如右图所示（2）0.28 1.4 （3）L2断路
21.（1）如下图所示（2）L1两端电压U1和L2两端电压U2（3）U1 +U2

22.(1)L1的左边接线柱和L2的右边接线柱相连 (2)开关右边接电压表的线打“×”，把开关右边接线柱接到L2右边

一、选择题
1.A 2.D 3.A 4.B 5.B 6.D 7.B 8.C 9.D 10.B
二、填空题
11.60 0.05 60 12.0.1 40 13.变大 变大 14.串 60 15.5 0.6 16.12 24 6
17.1 0.24
三、实验与探究题
18.（1）研究导体中的电流与导体两端电压的关系
（2）大于 右 手移动滑动变阻器的滑片，眼睛观察电压表的示数
（3）滑动变阻器的滑片位于最左端，相当于导线（或电阻R接线柱松动等）
19.（1）减小 （2）40
20.（1）甲 （2）电池的节数 （3）丙
四、计算题
21.（1）半导体 因为当电压变大时，导体的温度升高，导体的电阻在逐渐减小
（2）1Ω.
22.当S断开，把滑片P滑至b端时，R2与R1串联，I1=I2=0.2A R1=20Ω
U1=I1R1=0.2A×20Ω=4V
U2=U-U1=6V-4V=2V
R2=U2/I2=2V/0.2A =10Ω
当S闭合，把滑片P滑至a端时，R2与L并联，UL=U2’=6V
I2’=U2’/R2=6V/10Ω=0.6A
IL=I-I2’=0.4A
RL=UL/IL=15Ω

Answer 2

九年级英语参考答案
练习一
一．1—5 CADDB
6—10 CACCB 11—15 ABACB
二．1—5 BACDB
6—10 DCADB
三．1—5 BCCDB
6—10 CBCBD
四．A）1. leader 2. impatient 3. suitable
4. worried 5. differently
B）6. energetic 7. successful 8. laboratory
9. available 10. saving
五．1. different 2. characteristics 3. though
4. way 5. new 6. own
7. walking 8. change 9.
agree 10. with
六．1. actor
2. alone 3. took 4. surprised
5.gives
练习二
一．1—5 BCCCD
6—10 BACCD 11—15 CDDBD
二．1—5 ABCCC
6—10 BABDA
三．1—5 DADDB
6—10 ABBDD
四．A）1.sleepy 2. wisdom 3. satisfied
4. stay 5. warmth
B）6. decision 7. moods 8. relaxed
9. tight 10. heat
五．1. wearing
2. creates 3. sadness 4. makes
5. purity 6. warm 7. satisfied
8. climates 9. give 10. rather
六．1. afraid
2. carelessly 3.
some/several 4. revising/reviewing 5.attention
练习三
一．1—5 DABDB 6—10
DBCBB 11—15 ABACB
二．1—5 BACDC 6—10
ADBBC
三．1—5 BDABD 6—10
DDCAA
四．A）1.noisy 2. valuable 3. replied
4. asleep 5. unhappy
B）6. attention 7. doubt 8. stress
9. truth 10. cause
五．1. worried
2. ways 3. call 4. Firstly
5. enough 6. diet 7. matter
8. active 9. share 10. sadness
六．1. scientists 2. England
3. sent 4. preferred 5.minister
6. interested 7. enough 8. took
9. study 10. effect/influence

追问

这个也是在网上找的吧 我要后面的。。。

追答

练习五
一．1—5 AABCB 6—10 DCDDC 11—15 DBDCC
二．1—5 ABDAB 6—10 ADBCD
三．1—5 CDDBD 6—10 ADCBB
四．A）1.honoured 2. achievements 3. immediately 4. beauty 5. experienced
B）6. popcorn 7. effort 8. effect 9. industry 10. lifetime
五．1.career
2. acting 3.French 4. attracted
5. charm 6. insisted 7. earned
8. appearance 9. angle 10. passed
六．1.was born 2. 40-minute,won 3.Firelight, ideas 4. 1964, failed 5. directed/ made / produced, first
七．One possible version:
My Favourite Film StarMy favourite actress is Zhou Xun. She is well known in China.Zhou Xun was born on October 18, 1976. She was born in Zhejiang, China and started acting at an early age. She is slim and beautiful. She has bring eyes. She likes jogging and watching videos.After acting in the popular TV drama Palace of Desire in 1998, Zhou became a famous actress. Then she began to play lead roles in more and more TV dramas and movies. They include Suzhou River in 2000. Perhaps Love in 2005, and Night Banquet, in 2006. She had to work hard every day. Zhou Xun is considered as a talented actress. I believe her acting skills will become even better in the future.
练习六
一．1—5 ABBAB 6—10 DACDB 11—15 DAADC
二．1—5 CBCCC 6—10 DABAD
三．1—5 DCBAA 6—10 BABCD
四．A）1.living 2. safety 3. leaving 4. forties 5. death
B）6. against 7. progress 8. engineer 9. cruel 10. several
五．1.murdered 2. doorway 3.victim 4. office 5. took 6. struggle 7. clues 8. murderer 9. blood 10. prove
六．1.true 2. world 3.news 4. support 5. lovely
练习四
1-5BCACA 6-10BCBDA 11-15ADACD
二 1-5DBDCC 6-10BABDC
三 1-5BADBC 6-10BACAB
四 1.dead 2.herself 3.done 4.presentation 5.directors 6.photography 7.habit 8.disagrees 9.weekly 10.spacemen
五 1.live 2.coming 3.attend 4.interviewed 5.recent 6.videos 7.announced 8.follow 9.watching 10.messages
六 1.Advertisements 2.encourage 3.televisions 4.using 5.Types 6.paid 7.careful 8.free 9.learn 10.smart

Answer 3

跪求语文啊，物理2小时就写好了，英语对对还可以，就差语文了

Answer 4

物理 化学 有吗 我还要 很需要

Answer 5

九年级寒假作业数学P29第11题