There was a time when parents who wanted an educational present for their children would buy a typewriter, a globe or a set of encyclopedia(百科全书). Now those【C1】______seem hopelessly old-fashioned: this Christmas,【C2】______a lot of personal computers under the tree.【C3】______that computers are their key to success, parents are also frantically insisting that children【C4】______taught to use them in school -- as early as possible. The problem for schools is that when it【C5】______computers, parents do not always know best. Many schools are【C6】______parental impatience and are purchasing hardware【C7】______sound educational planning so they can say, 'Ok, we' ve moved into the computer age.' Teachers【C8】______themselves caught in the middle of the problem -- between parent pressure and【C9】______educational decisions. Educators do not even agree【C10】______how computers should be used. A lot of money is going for computerized educational materials【C11】______research has shown can be taught【C12】______with pencil and paper. Even those who believe that all children should【C13】______to computer warn of potential【C14】______to the very young, The temptation remains strong largely because young children【C15】______so well to computers. First graders have been【C16】______willing to work for two hours on math skills. Some have an attention span of 20 minutes.【C17】______school can afford to go into computing, and that creates【C18】______another problem: division between the haves and have-nots. Very few parents【C19】______for computer instruction in poor school districts,【C20】______there may be barely enough money to pay the reading teacher. 【C1】