题目

富兰克林为研究雷电现象，设计了如图所示的装置，避雷针线路与接地线分开，并在分开处装上帽形的金属钟A与B，两钟之间以丝线悬挂一个金属小球C，A钟下方用导线连接两个很轻的金属小球形成验电器D，避雷针上空附近的云不带电时，三个金属小球均静止下垂。若带负电的云接近避雷针顶端时，则（） A . 避雷针顶端带负电 B . 接地线上有正电荷流入大地 C . 验电器D上的两个金属小球最后会下垂并相互接触 D . 金属小球C会在A与B之间摆动，不断来 听力部分(共三节，20分) 第一节：听对话选图画(共5小题，每小题1分，分) 听下面5段对话，每段对话后有一个问题，听完后，从题中所给的A、B、C三幅图画中选出符合对话内容的图画。每段对话听一遍。 听第1段材料，回答第1小题。 1．What does the doctor ask the boy to eat every day? A． B． C． 听第2段材料，回答第2小题。 2．How did Tom go to school today? A． B． C． 听第3段材料，回答第3小题。 3．What does the boy's sister do on weekend? A． B． C． 听第4段材料，回答第4小题。 4．What's the matter with the little boy? A． B． C． 听第5段材料，回答第5小题。 5．Where did the man go last Sunday? A． B． C． 第二节：听对话或短文选答案(共10小题，每题1分，满分为10分) 听第6段材料，回答第6－8小题。 6．Can Victor play baseball after school? A．Yes, he can． B．No, he can't． C．We don't know． 7．What's the matter with Victor's mother? A．She has a fever． B．She has a headache． C．She has a bad cold． 8．Does Victor need help? A．Yes, he does． B．No, he doesn't． C．We don't know． 听第7段材料，回答第9－11小 9．Where are the two speakers going this evening? A．To a restaurant． B．To Sichuan． C．To Zhanjiang． 10．Who likes Sichuan food today, the man or the woman? A．Neither． B．Both． C．The woman does, but the man doesn't 11．What kind of food are they both going to eat today? A．Sichuan food． B．Fast food． C．Zhanjiang sea food． 听第8段材料，回答第12－15小题。 12．Who went to the Great Wall? A．Lucy and Lily． B．Lin Tao． C．Jim, Li Lei, Dave and Lin Tao 13．Who ate Beijing Duck? A．Lily． B．Lucy． C．Lin Tao． 14．What did Lin Tao do on Sunday afternoon? A．Watched TV． B．Played a game． C．Do homework．． 15．What did Lin Tao forget to do? A．Have an English class． B．Do homework．． C．Exercise 第三节：听对话或短文获取信息(共5小题，每题1分，满分为5分)