A 12.C 13.B 14.D 查看更多

 

题目列表(包括答案和解析)

There was a boy who was sent by his parents to a boarding school (寄宿学校).   36   being sent away, this boy was the   37   student in his class. He was at the top in every   38   always with high marks.
But the boy changed after   39   home and attending the boarding school. His grades started   40  . He hated being in a   41  . He was lonely all the time. And there were especially dark times when he   42   committing suicide (自杀). All of this was because he felt   43   and no one loved him.
His parents started   44   about the boy. But they even did not know what was   45   with him. So his dad decided to travel to the boarding school and   46   him.
They sat on the bank of the lake near the school. The father started asking him some casual questions about his classes, teachers and   47  . After some time his dad said, “Do you know, son, why I am here today?”
The boy answered back, “To   48   my grades?”
“No, no,” his dad replied. “I am here to tell you that you are the most   49   person for me. I want to see you   50  . I don’t care about grades. I care about you. I care about your happiness. YOU ARE MY LIFE.”
These words   51   the boy’s eyes to be filled with tears. He   52   his dad. They didn’t say anything to each other for a long time.
Now the boy had   53   he wanted. He knew there was someone on this earth who cared for him deeply. He   54   the world to someone. And today this young man is in college at the top of his class and no one has ever seen him   55  !
【小题1】
A.AfterB.BeforeC.WhenD.While
【小题2】
A.hardestB.naughtiestC.brightestD.dullest
【小题3】
A.examB.activityC.gameD.class
【小题4】
A.comingB.returningC.leavingD.reaching
【小题5】
A.risingB.increasingC.reducingD.dropping
【小题6】
A.groupB.termC.company D.party
【小题7】
A.led toB.felt likeC.thought backD.looked for
【小题8】
A.worthless B.carelessC.concernedD.annoyed
【小题9】
A.caringB.turningC.worryingD.speaking
【小题10】
A.crazyB.trueC.possibleD.wrong
【小题11】
A.talk withB.listen toC.tell toD.care about
【小题12】
A.familyB.friendsC.studyD.grades
【小题13】
A.realizeB.analyzeC.checkD.test
【小题14】
A.outstandingB.importantC.famousD.familiar
【小题15】
A.happyB.excellentC.interestedD.satisfied
【小题16】
A.causedB.wantedC.encouragedD.forced
【小题17】
A.answeredB.ignoredC.hatedD.hugged
【小题18】
A.nothingB.somethingC.everythingD.anything
【小题19】
A.showedB.meant C.intendedD.expressed
【小题20】
A.sadB.angryC.pleasantD.joyful

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据国家地震台网测定,北京时间2008年5月12日14时28分,在四川汶川县发生8

级地震,造成了严重的生命和财产损失。地震惊动了世界,灾区人民的命运也牵动着13亿中国人的心。但是,只要众志成城,就一定能度过难关。以下是几幅抗震救灾场面中拍摄的照片,请你从物理学的角度回答:

(1)图是用直升飞机吊运救灾物资的照片,当飞机和下端吊着的重物一起匀速下降时,重物所受的拉力     重力(选填:大于、等于或小于),同时,这个重物的动能

     ,重力势能     ,机械能      (选填:变大、不变或变小)。

(2)图中,小孩头上带的头盔可以防止高处的重物砸伤头部,起到防护作用。为什么头盔的外壳是用钢铁这种材料制成的?

(3)有人在灾区拍摄到大熊猫喝水的照片,如图所以示,但是看的不是很清楚,要想拍

摄的像大一点,应该使照相机的

  A.物距减小,像距也减小         B.物距减小,像距增大

C.物距增大,像距减小          D.物距增大,像距也增大

                                  

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探究导体的电阻跟导体长度的关系的电路如图12所示,通过移动导线夹可改变接入电路中电阻丝的长度。

(1)请用笔画线代替导线将电路实物图补充完整;

(2)实验采取了如下操作步骤,其合理的顺序是                (填序号);

A、将导线夹移到某一适当位置;

B、调节滑动变阻器,使电流表和电压表的示数为某一适当值;

C、记录电流表和电压表的示数,并用刻度尺测量接入电路中电阻丝的长度;

D、连接电路;

E、将滑动变阻器的滑片移到最左端;

F、闭合开关;

G、改变接入电路中电阻丝的长度,再测量几次;

(3)某次测量时,电压表的示数如图13所示,则电压为               V;

(4)将所测得的数据进行处理后,作出电阻丝的电阻与长度的关系图象如图14所示。分析图象可得出,导体的电阻与长度的关系是           

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质量相同的甲、乙两个实心球,密度分别是6×103kg/m3和12×103kg/m3.现把两球分别挂在两个相同的弹簧秤的挂钩上,然后将两球浸没在水中.这时它们所受的浮力分别为F和F;两个弹簧秤示数分别是T和T.下列各式中正确的是

[  ]

A.F∶F=2∶1
B.F∶F=1∶2
C.T∶T=10∶11
D.T∶T=13∶14

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质量相同的甲、乙两个实心球,密度分别是6×103千克/米3和12×103千克/米3.现把两个球分别挂在两个相同的弹簧秤的挂钩上,然后将两个球浸没在水中,这时它们所受的浮力分别是FF,两个弹簧秤的示数分别为TT,则下列说法正确的是(   )

     A.F:F=2:1            B.F:F=1:2

     C.T:T=10:11          D.T:T=13:14

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