题目

下列行为属于先天性行为的是①小鸟喂鱼     ②大山雀喝牛奶  ③黑猩猩用树枝钓取白蚁  ④小袋鼠爬到母袋鼠的育儿袋中吃奶A.①④          B.②③          C.②③④        D.①②③④  答案：A解析:先天性行为是生来就有的由动物的遗传物质所决定的一种行为，题中的小鸟喂鱼，小袋鼠爬到母袋鼠的育儿袋中吃奶，大山雀喝牛奶、黑猩猩用树枝钓取白蚁是在遗传因素的基础上，通过环境因素的作用，由生活经验和学习而获得，是后天性行为，又叫做学习行为。 The Chinese first made paper about 2,000 years ago. China still has pieces of paper which were made as long ago as that. But Chinese paper was not made from the wood of trees. It was made from the hair-like parts of certain plants.Paper was not made in southern Europe until about the year 1100.Scandinavia(斯堪的纳维亚半岛),which now makes a great deal of the world’s paper, did not begin to make it until 1500.It was a German named Schaeffer who found out that one could make the best paper from trees. After that, the forest countries of Sweden, Norway, Finland, and the United States became the largest paper producers. Today in Finland, which makes the best paper in the world, the paper industry is the biggest in the land. New paper-making machines are very big ,and they make paper very fast. The biggest machines can make a piece of paper 300 meters long and 6 meters wide in one minute.When we think of paper, we think of newspapers, books ,letters and envelopes. But there are many other uses. Only half of the paper that is made is used for books and newspapers, etc.1.Which of the following is the first to make paper?A. China. B. Scandinavia. C. Germany. D. Finland.2.Schaeffer found out that 　　　.A. the best paper was in the forest B. a German made the best paperC. wood could be made into the best paper D. the oldest paper was made 1,500 years ago3.What does the underlined word “industry” mean in Chinese?A. 国防 B. 教育 C. 农业 D. 工业4.According to the passage, paper is not used for 　　　.A. newspapers B. envelopes C. letters D. food and drinks5.The second paragraph mainly talks about paper making 　　　.A. in the United States B. in Scandinavia C. in Europe D. in all forest countries