问题 解答题

鱼类生活在水中,依靠______来游泳和平衡身体;飞行的昆虫,靠______的快速振动来飞行;草履虫依靠______的摆动在水中运动;变形虫依靠______ 运动;猎豹是依靠______来奔跑.运动是动物各种行为表现的基础,运动不仅要靠______统来完成,它还需要______系统的调节和控制.萤火虫夜晚能够发光,所需要的能量是由______直接提供的.

答案

动物的运动方式各种各样,动物的运动依赖于一定的身体结构.鱼类生活在水中,依靠鳍来游泳和平衡身体;飞行的昆虫,靠翅的快速振动来飞行;草履虫依靠纤毛的摆动在水中运动;变形虫依靠伪足运动;猎豹是依靠四肢来奔跑.运动并不是仅靠运动系统来完成的,它需要神经系统的控制和调节,它需要能量的供应,因此还需要消化系统、呼吸系统、循环系统等系统的配合.能量的来源是食物.食物被消化后,营养成分进入细胞转化为各类有机物.动物细胞再通过呼吸作用将贮藏在有机物中的能量释放出来,除了一部分转化为热能外,其余的贮存在ATP中.人和动物的各项生命活动所需要的能量来自ATP.萤火虫夜晚能够发光,所需要的能量是由ATP直接提供的.

故答案为:鳍;翅;纤毛;伪足;四肢;运动;神经;ATP.

完形填空
There once was a little boy who often got angry for unknown reasons and ended up quarreling with his friends. His parents felt   36  but had no idea how to deal with the matter.
In order to help the son, his father gave him a bag of   37  and told him that every time he   38  his temper, he must hammer a nail into the back of the   39  .
At first the boy felt puzzled at his father's words, but he did as he was told. The first day the little boy had   40  thirty nails into the fence. Over the next few weeks,   41   he learned to control his anger, the number of nails hammered daily   42  reduced. Three months later, the little boy discovered it was easier to   43  his temper than to hammer those nails into the fence. Finally the day came   44  the little boy did not lose his temper at all. He told his father about it and the father suggested that the little boy now   45  one nail each day when he was   46  control his temper. The days passed and the little boy was   47  able to tell his father that all the nails were       48 .
The father took his little boy   49  the hand and led him to the fence. He said, “You have done well, my son, but look at the   50  in the fence. The fence will never be the   51 .When you say things in anger, they   52  a scar just like this one on the person to whom you lose your temper. You can put a knife in a man and draw it out.   53  many times you say “I'm sorry”, the wound is still there. A mental wound is as bad as a   54  one. The hurt and pain caused by the   55  are deeper than those caused by the hand.
小题1:
A.patientB.angryC.desperateD.worried
小题2:
A.books B.toolsC.nailsD.suggestions
小题3:
A.keptB.missedC.lostD.left
小题4:
A.hammerB.shoesC.fenceD.hands
小题5:
A.discoveredB.pulledC.pushedD.driven
小题6:
A.asB.unlessC.tillD.although
小题7:
A.hardlyB.possiblyC.terriblyD.gradually
小题8:
A.catchB.loseC.breakD.hold
小题9:
A.beforeB.whenC.afterD.until
小题10:
A.pulled outB.pull outC.pulled overD.pull over
小题11:
A.able toB.managed toC.succeeded toD.going to
小题12:
A.eagerlyB.fortunatelyC.hardlyD.finally
小题13:
A.lostB.returnedC.goneD.spared
小题14:
A.inB.ofC.onD.by
小题15:
A.nailsB.cutsC.surfaceD.holes
小题16:
A.oneB.sameC.bestD.fence
小题17:
A.runB.leaveC.leadD.remain
小题18:
A.No matterB.No doubtC.HowD.However
小题19:
A.seriousB.violentC.terribleD.physical
小题20:
A.knifeB.nailC.tongueD.hammer
单项选择题