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问题 选择题

自然界的光现象令人陶醉．如图所示的现象中，由于光的反射形成的是（　　）

A．

日全食

B．

雨后彩虹

C．

铅笔错位

D．

水中倒影

答案

A、日全食属于日食的形成，是由于太阳、地球、月亮在同一直线上，月亮在中间挡住太阳光而形成的．所以A不符合题意．

B、雨后彩虹搭起天桥，属于光的色散现象，是由于光的折射形成的．所以B不符合题意．

C、插入水中的铅笔好像弯折了，这是铅笔的光进入人眼时在水面发生了折射，所以C不符合题意．

D、水中倒影，属于平面镜成像现象，是由于光的反射形成的．所以D符合题意．

故选D．

完形填空

Some countries are better than others at looking after the environment.In Europe,Germany（德国）and northem European countries work very hard to improve the environment.The people in Germany put their rubbish into different bags-paper in one bag,plastic in laws that do not allow people to burn too much coal. In the 1970s ,as people learned more about environmental problems,the “Green”movement（运动）began and soon spread all over Europe.The “Green ”movement tries to get governments to protect the environment.It collects information about how industry is damaging（毁坏）the environment and tells newspapers. 

小题1:Which countries in Europe work very hard to improve the environment? (within 5 words)

                                                                                          

小题2:Who put rubbish into different bags? (within 4 words)

                                                                                           

小题3:Can the people in Germany burn too much coal? (within 1 words)

                                                                                           

小题4:When did the “Green “movement begin? (within 3 words)

                                                                                           

小题5:What does the “Green”movement try to do?  (within 6 words)

                                                                                           
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问答题 简答题

目前高校学术委员会一般由校长任 * * ，其他学校领导任委员，近日华中科技大学校长宣布集体退出高校学术委员会，你怎么看？
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