八年级寒假生活指导答案山东教育版（2017）

一、选择题：DBBCC、DBBDD。
　　二、填空题
　　1、振动，介质，0，音色，响度。
　　2、光在同种均匀介质中是沿直线传播的。
　　3、先升华后凝华，液化，凝华。
　　4、凸，倒立，弱。
　　5、异种，吸引。
　　6、同一高度，缩小，照相机。
　　7、蒸发，熔化，吸。
　　8、电流表的正、负接线柱接反了。电流表的量程选小了，烧坏。
　　9、0.22，串联电路中电流处处相等。
　　三、作图(开云kaiyun(中国)生上黑板画)
　　四、实验题：
　　2、(1)并联电路中干路电流等于各支路电流之和。
　　(2)减少实验误差，提高实验的准确度，增加干电池的个数。
　　(3)用三个电流表同时测量A、B、C三处的电流。
　　3、(1)凹，靠近。
　　(2)晶状体太凸，成像在视网膜前。
　　五、计算题：
　　解：S=Vt=340m/s×01s÷2=17m。
　　答：要听到自己的回声，人距障碍物至少17m。
　　六、综合题
　　1、MN，AO，3，6，右。
　　2、A，
　　3、-2 ℃ ，24 ℃ ，0.38。
　　4、(1)温度计的玻璃泡碰到了杯底。(2)读数时两眼没有与温度计的液柱上表面相平。
练习一
　　一.1.wolves 2.beginning 3.wears 4.least 5.tasty 6.nowhere 7.pleasant 8.Climbing 9.crazy 10.without
　　二.1.D 2.B 3.A 4.B 5.B 6.B 7.A 8.D 9.A 10.A 11.B 12.A
　　三.1.with 2.from 3.in 4.at 5.of 6.for 7.in、for 8.in 9.with 10.by
　　四.1.practicing 2.were 3.will die 4.didn’t watch 5.smoking 6.are getting 7.lost 8.keep 9.lying 10.to watch
　　五.1.Don’t open when driving 2.won’t camping it rains 3.leave five-year-old on own 4.The ninth the same as 5.make noise to do
　　六.1.C 2.B 3.A 4.A 5.A 6.C 7.D 8.D 9.A 10.D
　　练习二
　　一.1.Leaves 2.activities 3.ninth 4.worried 5.beauty 6.useful 7.amazing 8.less 9.better 10.weight
　　二.1.have less than 2.is helpful to 3.spend better results on 4.as interesting as
　　5.Luckily put out 6.took a trip famous
　　三.1.A How far 2.B Are 3.B not talk 4.B / 5.B so much 6.B doesn’t like
　　7.B to answer 8.B will be 9.B isn’t 10.D on
　　四.1.C 2.B 3.C 4.B
　　五.1.policeman 2.E-dog 3.frog
　　六.1.more helpful than 2.Did enjoy themselves 3.keeping secret between 4.the same as
　　5.less time by coach 6.isn’t on is it
　　练习三
　　一.1.quietly 2.fit 3.popular 4.finishes 5.twelfth 6.word 7.twice 8.lost 9.medals 10.save
　　二.1.C 2.C 3.D 4.A 5.B 6.B 7.C 8.B 9.B 10.B
　　三.1.as the as mine 2.different from 3.Be careful with hurt 4.Make sure closed
　　5.hurt stay in hospital 6.lost their lives 7.should in danger 8.is getting smaller smaller
　　四.1.herself 2.theirs 3.me 4.themselves 5.them 6.yourself 7.us 8.Its 9.Our 10.his
　　五.best fit exercise learn alone took beautiful dangerous choose makes
　　六.1.D 2.B 3.A 4.D 5.D
　　练习四
　　一.1.feeding 2.feathers 3.close 4.readers 5.bored 6.languages 7.report 8. themselves 9.smell 10.organizing
　　二.1.in 2.about 3.on 4.from 5.as 6.of 7.of 8.on 9.for 10.in
　　三.1.the most popular 2.telling so much funny 3.saved out of ago 4.has problems
　　5.much pay for 6.good at telling so happy 7.protect won’t survive 8.live up to
　　四.1.finish 2.to speak 3.brushes 4.is 5.is flying 6.is having 7.watching 8.will reach 9.stops 10.to chat
　　1.B 2.A 3.A 4.B 5.C 6.D 7.A 8.D 9.B 10.C
　　六.exciting famous the-most-popular interesting cleaner more-beautiful the-nicest more
　　练习五
　　一.1.interest 2.hunters 3.keep 4.farmlands 5.hungry 6.solve 7.ourselves 8.Wednesday 9.less 10.teeth
　　二.1.playing 2.worrise 3.is blowing 4.is trying 5.happened 6.will watch 7.Keep 8.to feed 9.is washing 10.looks
　　三.1.B 2.B 3.B 4.A 5.B 6.B 7.A 8.C 9.D 10.A 11.B 12..B
　　四.1.B 2.C 3.C 4.D 5.D 6.A 7.C 8.B 9.A 10.C
　　五.1.Youth Award. 2.He is very helpful. 3.Yes,he is. 4.He quickly jumped into the water and did his best to save the boy. 5.Zhang Li.
　　练习六
　　一.1.thinner 2.closed 3.heroes 4.advertisements 5.actions 6.bamboos 7.living 8.smlilng 9.most busy 10.weight
　　二.1.less than 2.taught himself 3.as as 4. What about 5.belongs to 6.Are able to
　　7.shorter than 8.is favourite 9.on foot 10.by himself
　　三.1.on 2.on of 3.out of 4.at 5.in 6.in 7.on 8.around in 9.through 10.at
　　四.smoke away knocked called through could helped arrived out thanked
　　五.1.stopped 2.did find found 3.got 4.died 5.were was 6.will be 7.felt 8.is waiting 9.go 10.will meet
　　六.1.D 2.C 3.A 4.C 5.B
　　练习七
　　一.1.C 2.A 3.B 4.A 5.C 6.C 7.A 8.C 9.A 10.D
　　二.1.B 2.C 3.B 4.D 5.A