泗阳某小区物业工作人员来到小明家收电费.他观察到小明家电能表的情况如图所示.然后从记录本上检查上月电能表的示数是811．6 kw·h.若按0．5元／kw·h计费.李明家本月应缴电费元.小明家同时使用的用电器总功率不得超过 w.此电能表最多能接40W的电灯盏. 题目和参考答案——青夏教育精英家教网—

题目内容

泗阳某小区物业工作人员来到小明家收电费，他观察到小明家电能表的情况如图所示，然后从记录本上检查上月电能表的示数是811．6 kw·h。若按0．5元／kw·h计费，李明家本月应缴电费元。小明家同时使用的用电器总功率不得超过 w。
此电能表最多能接40W的电灯盏。

60 1100 27；解析:
略

练习册系列答案

南大励学小学生英语四合一阅读组合训练系列答案

学业测评课时练测加全程测控系列答案

学业水平考试全景训练系列答案

正宗十三县系列答案

相关题目

In the summer of 1978 an English man named Steven was driving his tractor through a field of wheat when he discovered something strange. Some of his wheat was lying on the ground. The flattened wheat formed(形成)a circle about six meters across . Around this circle were four smaller circles of flattened wheat.
　 Three years later a farmer who lived nearby discovered almost the same circles in one of his fields. These circles were larger—nearly 15 meters across . That same year , another English farmer discovered three circles of flattened wheat on his land—one large circle between two small circles. During the following years, farmers in England found circles in their fields more and more often.
　 The circles are called “crop circles” because they usually appear in fields of wheat or corn. The wheat in the circles lies on the ground but is never broken; it keeps on growing, and the farmers can later harvest it. Farmers always discover the crop circles in the morning, so the circles probably form at night. They appear only in the months from May to September. What causes the crop circles?
　 At first, people thought that some kids were making them as a joke, or that farmers were making them to attract tourists.(In fact, in 1991, two men said they made the circles themselves, but many scientists don’t believe them.) People tried to copy them: They tried to make circles exactly like the ones the farmers had found. They couldn’t do it. They couldn’t enter a field of wheat without leaving tracks, and they couldn’t flatten the wheat without breaking it.
　 Several times people reported seeing stranger objects near the fields where crop circles later appeared. Many people believe that these crop circles are the messages sent by living things from outer space(外层空间)or the marks left by their spaceships.
　 Scientists who have studied the crop circles try to find out what causes them. In the summer of 1990 some scientists spent three weeks in the part of England where many circles have appeared. They had all the latest high-tech equipment(最新高科技设备). The equipment—worth 1.8 million dollars—got nothing. But one night, as the scientists were watching a field, crop circles formed in the field behind them, which were quite different from the others. The scientists had neither seen nor heard anything.
　 When Steven discovered the crop circles on his land in 1978, he said, “It was just like something that had landed in the field from the air and gone back up again. I don’t know what to make of these things.”
　 Crop circles have appeared in England, Japan, the United States and Russia. Experts from all over the world have studied them, and they say what Steven said: They don’t know what to make of these things.
【小题1】Which picture is probably the one formed in the field behind the scientists?

【小题2】“Flattened wheat” means ___________.
　　

【小题3】The passage is mainly about something ___________ .

A．that is done by living things from outer space

B．that cannot be solved but found all around the world

C．that cannot be made clear or understood

D．that is discovered and copied by the farmers

假如你是温泉中学的陈林，曾在你班任教过的美国老师Mr. Brown 离开你校一年了。他想了解学校、班级及你目前的情况。请你根据所给信息给他写一封电子邮件，并希望他有时间再来你校参观访问。（以上背景内容无需表述）
内容要点：

	去年	今年
学校		搬进新教学楼（teaching building）
班级	50人	52人；王东和父母去武汉了
班级	篮球赛输了	上月篮球赛赢了；全班同学还是每天锻炼1小时
个人	英语不太好	英语取得很大进步；帮助同桌（deskmate）张楠学习数学