Notice: Medical Alert(警报)

Dear Readers,

    Medical related emergencies are on the rise with more old people living alone. More seniors are looking for an independent lifestyle and better quality of life. More than 1 in 3 people over the age of 64 will fall this year. Nearly half will not be able to get up without support.

    Medical fees can escalate when a person is not given timely support. You can prevent a medical disaster with our 24-hour emergency response system. Our solution is highly suggested by doctors, healthcare professionals, and hospitals.

    We are offering a FREE Medical Alert System to seniors or their loved ones who call now. For a limited time, there will be no set-up fees and the medical monitoring starts at less than $1 a day. The system is easy to use. The necklace pendant(挂坠) can travel with you. Our new system can detect falls automatically.

    Call Toll-Free 1-800-360-0405 and gain peace of mind. There's no long-term contract. Our medical alert professionals can walk you through everything over the phone.

    The first 100 callers to order will receive:

    Free Medical Alert System ($300 value).

    24 Hours a Day / 7 Days a Week LIVE Monitoring and Support.

    Free Necklace Pendant.

    No long-term Contract.

    Free shipping (Mention Reader's Digest).

    Don't wait until after a fall to give us a call. Take advantage of this special offer now to protect yourself or a loved one.

    Call now Toll-Free 1-800-231-0167 and mention Reader's Digest.

Sincerely,

Jim Nelson

如图，两个完全相同的空心塑料球A和B，用两根完全相同的绝缘丝线将两球悬挂在天花板上的一点，当M、N两处都带上适量负电后，A，B两球“恰好接触而不挤压对方”．请画出B球受力示意图．

阅读理解

    The question of what children learn, and how they should learn it, is continually being debated and redebated. Nobody dares any longer to defend the old system, the parrot-fashion（way of learning by repeating what others say）of learning lessons, the grammar-with-a-whip（鞭子）system, which was good enough for our grandparents. The theories of modern psychology have stepped in to argue that we must understand the needs of our children. Children are not just small adults; they are children who must be respected as such.

    Well, you may say, this is as it should be, and a good idea. But think further. What happens? “Education” becomes the responsibility not of teachers, but of psychologists. What happens then? Teachers worry too much about the psychological implications（暗示） of their lessons, and forget about the subjects themselves. If a child dislikes a lesson, the teacher feels that it is his fault, not the child's. So teachers worry whether history is “relevant” to modern young children. And do they dare to recount stories about violent battles? Or will this make the children themselves violent? Can they tell their classes about children of different races, or will this encourage racial hatred? Why teach children to write grammatical sentences? Oral expression is better. Sums? Arithmetic? No; real-life mathematical situations are more understandable.

    You see, you can go too far. Influenced by educational theorists, who have nothing better to do than write books about their ideas, teachers leave their teaching-training colleges filled with grand, psychological ideas about children and their needs. They make complicated preparations and try out their “modern methods” on the long-suffering children. Since one “modern method” rapidly replaces another, the poor kids will have well been fed up by the time they leave school. Frequently the modern methods are so complicated that they fail to be understood by the teachers, let alone the children; even more often, the relaxed discipline so necessary for the “informal” feeling the class must have, prevents all but a handful of children from learning anything.

被后人称为“书圣”的书法家是（    ）