题目

下列说法正确的是A.淀粉和纤维素的组成都可用(C6H10O5)n表示，它们水解的最终产物都是葡萄糖B.钢铁在海水中比在河水中更易被腐蚀，主要原因是海水含氧量高于河水C.用CuSO4溶液使蛋清液发生盐析，进而分离、提纯蛋白质D.医疗上的血液透析利用了胶体的性质，而土壤保肥与胶体的性质无关 答案：A     A中淀粉和纤维素都由葡萄糖单元构成，水解产物都是葡萄糖；B中由于海水含电解质，钢铁易形成原电池而被腐蚀；C中硫酸铜属于重金属盐会使蛋白质变性；D中土壤胶体吸附离子而保肥.If you ask people to name the one person who had the greatest effect on the English language, you will get answers like“Shakespeare”“Samuel Johnson” and“Webster”, but none of these men had any effect at all compared to a man who didn’t even speak English ——William the Conqueror. Before 1066, in the land we now call Great Britain lived people belonging to two major language groups. In the west-central region in the Welsh, who spoke a Celtic language, and in the north lived the Scots, whose language, thought not the same as Welsh, was also Celtic. In the rest of the country lived the Saxons, actually a mixture of Anglos, Saxons, and other Germanic and Nordic peoples, who spoke what we now call Anglo-Saxon (or Old English), a Germanic language. If this state of affairs had lasted, English today would be close to German. But this state of affairs did not last. In 1066 the Normans led by William defeated the Saxons and began their rule over England. For about a century, French became the official language of England while Old English became the language of peasant. As a result, English words of politics and the law come from French rather than German. In some cases, modern English even shows a distinction(区别)between upper-class French and lower-class Anglo-Saxon in its words. We even have different words for some foods, meat in particular, depending on whether it is still out in the fields or at home ready to be cooked, which shows the fact that the Saxon peasants were doing farming, while the upper-class Normans were doing most of the eating. When Americans visit Europe for the first time, they usually find Germany more “foreign” than France because the German they see on signs and advertisements seems much more different from English than French does. Few realize that the English language is actually Germanic in its beginning and that the French influences are all the result of one man’s ambition. 1. The two major languages spoken in what is now called Great Britain before 1066 were __________. A. Welsh and Scottish B. Nordic and Germanic C. Celtic and Old English D. Anglo-Saxon and Germanic 2. Which of the following groups of words are, by inference, rooted in French? A. president, lawyer, beef B. president, bread, water C. beard, field, sheep D. folk, field, cow 3. Why does France appear less foreign than Germany to Americans on their first visit to Europe? A.　　  Most advertisements in France appear in English. B. They know little of the history of the English language. C. Many French words are similar to English ones. D. They know French better than German. 4. What is the subject discussed in the text? A. The history of Great Britain. B. The similarity between English and French. C. The rule of England by William Conqueror. D. The French influences on the English language.