科学中常用磁感线来形象地描述磁场，用磁感应强度(用字母B表示)来描述磁场的强弱，它的国际单位是特斯拉(符号是T)，磁感应强度B越大表明磁场越强；B＝0表明没有磁场。有一种电阻，它的大小随磁场强弱的变化而变化，这种电阻叫做磁敏电阻，如图一所示是某磁敏电阻R的阻值随磁感应强度B变化的图像。为了研究某磁敏电阻R的性质，小刚设计了如图二所示的电路进行实验，请解答下列问题：

写作

早晨，在上学的路上，你（Bob）遇到多日不见的好友（Dale），你们相互问候后，便告别了。要求至少写五句对话。语句通顺，无单词及语法错误，注意大、小写及标点符号的使用。

    Last year, my best friend, Li Xiaoming, talked about the best way of studying English. At first he thought the teacher spoke 1quickly2he didn't understand. He also3 ask questions4 his poor pronunciation. Then he began to watch English movies, he 5 funny movies.6 he couldn't understand everything the characters said,7he can get the meaning by watch body language and expressions. He also realized he could get the meaning by8 for the key words. His pronunciation improved as well by listening to the conversations in English movies. Sometimes he learned some9sentences like “It's a piece of cake.” At last he often 10 the new words in the dictionary.