问题 探究题

汽车在行驶途中,为了安全,车与车之间必须保持一定的距离。因为,驾驶员从发现某一异常情况到采取制动动作的“反应时间”里(设同一人,不同速度下的一反应时向是相同的),汽车要通过一段距离(称为反应距离);而从采取制动动作到汽车完全停止,汽车又要通过一段距离(称为制动距离)。据公安部门统计,车辆行驶过程中,停车距离越长,发生事故的可能性越大。表中给出了某辆汽车在同一段路面上行驶过程中,在不同速度下的反应距离、制动距离和停车距离等部分数据。请根据以上信息完成下列问题:

(1)分析表中1、3两行数据可知:__________=________+制动距离;并填写表中空缺的两个数据,完成表格。(将答案直接写在表格中的横线上)

(2)分析表中数据可知,汽车行驶速度越大,停车距离_________(选填“越长”或“越短”),所以超速行驶,发生事故的可能性越大。

(3)由表中数据可知,反应距离取决于反应时间和行驶速度,由于酒后驾车反应时间比不饮酒的反应时间要长一些,因此,在行驶速度相同的情况下,酒后驾车的反应距离会___________,致使___________,从而导致发生交通事故的可能性增大。

答案

(1)停车距离;反应距离;18;56

(2)越长

(3)变长;停车距离也变长

完形填空
A friend of mine met with an accident driving in the darkness. His legs were so hurt that he couldn’t   36 .What was worse was that he found himself unable to ask for help—his mobile phone didn’t  37  . Nothing could be done but  38   in cold wilderness. It was 8 hours later that day broke, and then the   39   of the rescue.
It is almost   40   that he could stand the horror in the darkness for so long. Even more surprising was his  41  , “First of all I checked up on my physical  42  and found myself not in fatal(致命的) danger. Finding no   43   to call for help, I leaned back to try my best to keep the wound from  44  . In this way I fell asleep.
This  45  me of another story: A group of young men   46   to explore a mountain cave and got lost.  47  to find a way out in the dark cave they were  48   and ran anxiously without a sense of   49  . Finally they fell dead in fear and exhaustion. According to the  50    people that found them, the place where they got lost was only about 10 meters away from the   51   of the cave. If they stayed where they got lost and tried to   52  themselves, they would probably   53   a small light glimmering(闪烁) not far away.
We can compare it with our   54   itself. Sometimes when we meet with difficulties in life, we feel lost in the darkness. If it is unclear, you needn’t put up a struggle    55  . Remember: CALM DOWN!
小题1:
A.recoverB.moveC.escapeD.shout
小题2:
A.controlB.operateC.ringD.work
小题3:
A.cryB.lieC.waitD.sleep
小题4:
A.failureB.successC.teamD.arrival
小题5:
A.untrueB.unbelievableC.reasonableD.strange
小题6:
A.conclusionB.decisionC.explanationD.bravery
小题7:
A.conditionsB.situationsC.signsD.cases
小题8:
A.methodB.wayC.roadD.approach
小题9:
A.painingB.spreadingC.hurtingD.bleeding
小题10:
A.remindsB.informsC.demandsD.tells
小题11:
A.hadB.managedC.triedD.planned
小题12:
A.UnwillingB.UnableC.DeterminedD.Deciding
小题13:
A.frightenedB.surprisedC.excitedD.disappointed
小题14:
A.hearingB.sightC.touchD.direction
小题15:
A.rescueB.villageC.localD.brave
小题16:
A.endB.topC.openingD.door
小题17:
A.saveB.helpC.checkD.calm
小题18:
A.lookB.senseC.catchD.realize
小题19:
A.adventureB.accidentC.lifeD.experience
小题20:
A.reallyB.immediatelyC.carefullyD.certainly
单项选择题