题目

小明用如图甲、乙所示的装置，分别探究“通电螺线管外部磁场的分布”和“电磁感应现象”。（1）在图甲中，闭合开关后，通电螺线管的右端为____极。（选填“N”或“S”）（2）在图甲实验过程中，将电源正负极对调，发现小磁针的偏转方向发生改变，这样操作是为了探究通电螺线管外部磁场方向和_____有关。（3）图乙中，闭合电路中的一部分导体AB静止不动，当磁体左右运动时，灵敏电流计的指针___（选填“会”或“不会”）偏转。这说明闭合Winners Club You choose to be a winner! The Winners Club is a bank account specially designed for teenagers. It has been made to help you better manage your money. The Winners Club is a transaction account (交易账户) where you receive a key – card so you can get to your money 24/7 – that’s 24 hours a day, 7 days a week! It’s a club with impressive features for teenagers: ●No account keeping fees! You’re no millionaire so we don’t expect you to pay large fees. In fact, there are no account keeping or transaction fees! ●Excellent interest rates! You want your money to grow. The Winners Club has a good rate of interest which gets even better if you make at least two deposits (储蓄) without taking them out in a month. ●Convenient Teenagers are busy – we get that. You may never need to come to a bank at all. With the Winners Club you can choose to use handy tellers and to bank from home using the phone and the Internet … You can have money directly deposited into your Winners Club account. This could be your pocket money or your pay from your part – time job! ●Mega magazine included Along with your regular report, you will receive a FREE magazine full of good ideas to make even more of your money. There are also fantastic offers and competitions only for Winners Club members. The Winners Club is a great choice for teenagers. And it is so easy to join. Simply fill in an application form. You will have to get permission from your parent or guardian (so we can organize that cool key – card) but it is easy. We can’t want to hear from you. It’s the best way to choose to be a winner! 1.Which of the following is TRUE about the Winners Club? A．Special gifts are ready for parents. B．The bank opens only on work days. C．Services are convenient for its members. D．Fees are necessary for the account keeping. 2.The Winners Club provides magazines which_______. A．encourage spending B．help to make more of your money C．are free to all teenagers D．are full of adventure stories              3.If you want to be a member of the Club, you must________. A．be an Internet user B．be permitted by your parent C．have a big sum of money D．be in your twenties 4.What is the purpose of this text? A．To set up a club. B．To provided part – time jobs. C．To introduce a new banking service D．To organize key – cards.