题目

如图甲所示，一光滑绝缘板组成的直角支架MLK，水平板LK长为l=0.91m，距离水平地面高为h=2m，竖直板ML足够长，两板连接处有一小孔．水平板上方存在E1=2N/C的匀强电场，电场方向与水平方向成θ角，指向右上方，θ为45°至90°的某一确定值．竖直线MQ左侧有电场和磁场（甲图中均未画出），已知竖直方向的电场E2分布在MQ左侧整个空间，与纸面垂直的磁场只分布在NP与MQ两平行线之间，区间水平宽度为d=1m，磁感应强度B随时间变化规律如图乙所示，规定磁场用方框中所给单词的适当形式填空，使短文通顺正确连贯（每个单词限用一次） failure       what      health       outstanding     confidence  complete      you       suggestion      do              high  Confidence is very important in daily life. It can help you to develop a _61_____ attitude. A study shows that the people who are___62___ are much happier. They can have more chance to make themselves successful. But how to be more confident? Here are some___63___： ·Speak loud　When you are not confident, you can't do well __64____ you want to do. You speak in a voice so low that other people can hardly hear you. Try to speak loud enough so that people can hear you clearly. The __65____ voice can help you become more confident. ·Play sports Physical exercise makes you tired but___66___relaxed. A strong body helps you be full of confidence. ·Encourage yourself　Write down a list of things you  _67_____ during the day to see how many things you have done well. Did you finish your homework? Did you tell a joke that made everybody laugh? Give __68____ praise for the good things you've done. ·Get rid of fear   Fear comes along with failure. But it's easy to overcome if you know that __69____ is part of your life. Don't hide your head just because you said something stupid last time. Try to start again and believe you can do better. ·Pick up a hobby　If you like singing, sing as much as you can. In some ways, a hobby can make you _70_____. And it will make you happy and confident.