题目

质量为m的物体从地面上方H高产无初速释放，落在地面后出现一个深度为h的坑，如图所示，在此过程中（     ）                                                                        A．  重力对物体做功为mgh    B．  重力对物体做功为mg（H+h）    C．  外力对物体做的总功为零    D．  地面对物体的平均阻力为                                                                  You are near the front line of a battle. Around you shells （炮弹）are exploding; people are shooting from a house behind you. What are you doing there? You aren’t a soldier. You aren’t  36  carrying a gun. You’re standing in front of a  37  and you’re telling the TV  38  what is happening.It’s all in a day’s work for a war reporter, and it can be very  39  . In the first two years of the  40  in former Yugoslavia（前南斯拉夫), 28 reporters and photographers were killed. Hundreds more were  41  . What kind of people put themselves in danger to  42  pictures to our TV screens and  43  to our newspapers? Why do they do it ? “I think it’s every young journalist’s  44  to be a foreign reporter,” says Michael Nicholson, “that’s  45  you find the excitement. So when the first opportunity comes, you take it  46  it is a war.” But there are moments of  47  . Jeremy Bowen says, “Yes, when you’re lying on the ground and bullets（子弹）are flying  48  your ears, you think: ‘What am I doing here? I’m not going to do this again.’ But that feeling  49  after a while and when the next war starts, you’ll be  50  .” “None of us believes that we’re going to  51  ” adds Michael. But he always  52  a lucky charm（护身符）with him. It was given to him by his wife for his first war. It’s a card which says “Take care of yourself.” Does he ever think about dying? “Oh, 53  , and every time it happens you look to the sky and say to God, ‘If you get me out of this, I  54  I’ll never do it again.’ You can almost hear God  55  , because you know he doesn’t believe you .”【小题1】A．reallyB．simplyC．merelyD．even【小题2】A．battlefieldB．crowdC．cameraD．house【小题3】A．directorsB．producersC．actors D．viewers【小题4】A．depressingB．disappointingC．dangerousD．endangered【小题5】A．lifeB．stayC．warD．fight【小题6】A．buriedB．defeatedC．woundedD．beaten【小题7】A．takeB．bringC．makeD．show【小题8】A．Stories B．scenesC．passagesD．contents【小题9】A．faithB．nightmareC．dreamD．duty【小题10】A．howB．whyC．whereD．because【小题11】A．even ifB．as ifC．even soD．ever since【小题12】A．fear B．surpriseC．sadnessD．shame【小题13】A．past B．intoC．throughD．around【小题14】A．occurs B．returnsC．goesD．continues【小题15】A．awayB．outC．home D．there【小题16】A．dieB．leaveC．remainD．escape【小题17】A．wearsB．carriesC．hangsD．holds【小题18】A．seldom B．neverC．many timesD．some time【小题19】A．considerB．promise C．guessD．accept【小题20】A．screamingB．laughingC．cryingD．whispering