题目内容
Technology has come to the marketplace. In many U. S stores the cash【C1】______has been replaced by a computer that quickly and easily calculates the cost of items being bought.
Back in the early 1960s, when the laser【C2】______developed, it was viewed by some as a fascinating research tool; others called it a【C3】______toy. Since that time, the laser has proved to be an【C4】______of many uses. In fact, in many places it's becoming a part of【C5】______life. Take, for example, what's happening at some supermarkets. Food-shopping Americans are coming【C6】______with lasers and computers for the first time. But they're hardly【C7】______it, until they get to the checkout line. With scarcely a glance at the items, the clerk【C8】______them across a hole, where a special marking on each item is scanned by a low-powered laser【C9】______inside the machine, connected to a remote computer. It started a few years ago, when food processors【C10】______the time had come to put code markings on every one of their thousands of food products. This would make them【C11】______identifiable to a computer. The scanning laser beam was an【C12】______device for reading these markings, and so the Universal Product Code was born.
【C13】______every package today, every can and bottle, has these unique symbols.【C14】______is the time-consuming stamping of prices on each item. Prices are shown【C15】______the shelf.
This mew technology promises to【C16】______food products moving smoothly on and off supermarket shelves, which will help keep overhead down and prices【C17】______At the end of each business day, the remotely-located computer gives the store manager a total picture of the day's【C18】______--what the needs to restock,【C19】______, and what he can mark down and put on sale.
As for the customer, the most dramatic change is【C20】______checkout lines keep moving.
【C1】
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A．More than 43,000.B．12,000.C．103,000.D．143,000.
A．At Monticello.B．In France.C．In Louisiana.D．In Washington.
But in the 19th century the mass production of goods 【B3】______ the Industrial Revolution made person-to-person selling inefficient. The mass distribution of goods that 【B4】______ the development of the railway and highway made person-to-person selling too slow and expensive. At the same time, mass communication, first newspapers and magazines, then radio and television, made mass selling through 【B5】______ possible.
The objective of any advertisement is to convince people that it is in their best 【B6】______ to take the action the advertiser is recommending. The action 【B7】______ be to purchase a product, use a service, vote for a political candidate, or even to join the Army.
Advertising as a 【B8】______ developed first and most rapidly in the United States, the country that uses it to the greatest 【B9】______ . In 1980 advertising expenditure in the U.S. exceeded 55 billion dollars, or 【B10】______ 2 percent of the gross national product. Canada spent about 1.2 percent of its gross national product 【B11】______ advertising.
【B12】______ advertising brings the economics of mass selling to the manufacturer, it produces benefits for the consumer 【B13】______ . Some of those economies are passed along to the purchaser so that the cost of a product sold primarily through advertising is usually far 【B14】______ than one sold through personal salespeople. Advertising brings people immediate news about products that have just come on the market. Finally, advertising 【B15】______ for the programs on commercial television and radio and for about two thirds of the cost of publishing magazines and newspapers.
【B1】______
论说文
根据下面的材料写一篇论说文，题目自拟，要求700字左右。
南美洲有一种奇特的植物——卷柏。说它奇特，是因为它会走。卷柏生存需要充分的水分，当水分不充足时，它就会自己把根从土壤里拔出来，让整个身躯卷成一个圆球状。由于体轻，只要稍有一点风，它就会随风在地面滚动。一旦滚到水分充足的地方，圆球就会迅速打开，根重新钻到土壤里，暂时安居下来。当水分又一次不充足，住得不称心如意时，它就会继续游走，以寻求更好的生存环境。
难道卷柏不走就不能生存了吗？一位植物学家做了一个实验：用挡板圈出一块空地，把一株卷柏放到空地中水分最充足的地方，不久卷柏便扎根生存下来。几天后，当这里水分减少时，卷柏便拔出根须，准备飘移。但实验者用挡板对其进行严格控制，限制了它游走的可能；结果实验者发现，卷柏又重新扎根生存在那里；而且在几次将根拔出又不能移动的情况下，便再也不动了；并且，卷柏此时的根已经深深扎入泥土，长势比任何时期都好，也许它发现，根扎得越深，水分越充分……
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