题目

根据图中小磁针静止时的情况，画出线圈的绕法.____________ 答案：【答案】见解析【解析】解答：根据异名磁极相互吸引，靠近小磁针N极的一端为电磁铁的S极，即电磁铁的左端为S极，右端为N极。根据安培定则,伸出右手使大拇指指向电磁铁的N极(右端)，则四指弯曲所指的方向为电流的方向，结合电流由螺线管的左端流入画出电磁铁的绕线。如图所示：阅读配对。1. Fred can earn one million yuan a year. He wants to buy an expensive car, such as Benz or Audi because he thinks it is the symbol of his success in business.2. Sally and her husband work in a middle school. They want to buy a car of more than 200,000 yuan. But have only over 100,000 yuan at present.3. Tom doesn’t save much money. He plans to borrow some money and buy a car that costs between 130,000 yuan and 150,000 yuan.4. Toyoto, a Japanese young man, is going to marry Liu Mei this August. He is thinking about buying her a new car (made in Japan) as a wedding gift.5. Li Jie’s car was stolen last month. It is inconvenient for him to go to work. Because of the oil’s high price, he decides to buy a car that can save oil.A QQQQ is becoming more and more popular. It has a lot of advantages such as a very low price, especially suitable for women. It is worth no more than 51,000 yuan.B LavidaLavida is very popular with most people. It has a beautiful appearance with spacious(宽敞的) inside.It’s worth between 140,000yuan and 170,000 yuan.C AccordAccord is a luxury car of more than 200,000 yuan. If you buy one during June, you can pay half of the money for the first time and pay the rest next year.D CivilCivil is a car that is made in Japan. It only costs about 160,000. It is liked by young men very much; especially a red one is suitable for young girls.E Santana 3000The factory is located in Shanghai. The top speed can reach 178km per hour. The present price may be no more than 122,000 yuan.F BenzBenz has a good-looking appearance. It is also very comfortable to sit in. It is liked by a lot of successful businessmen even though the price is a little high.G BluebirdBesides the low price, the spacious inside and the luxury appearance, Bluebird has another big advantage. It saves oil very much. So Nissan is your good choice.1.__________2.__________3.__________4.__________5.__________