题目

某地区人口容量具有不确定性，是因为 ①科技发展水平和人口消费水平不断变化  ②某地某时期资源总数不断变化 ③人口不断迁移  ④国家大型工程建设的实施 A.①②      B.①③        C.②④       D.①④ 答案：D 阅读理解 　　One afternoon many years ago, I sat down on a chair in a park and watched a little boy, around 2 years old, running freely on the grass as his mother watched from a short distance．The boy would fall to the grass, get up, and without looking back at his mother, run as fast as he could as if nothing had happened． 　　When kids fall down, they don't think of the fall as a failure．Instead, they consider it as a learning experience．They try and try again until they succeed． 　　While I was touched by the boy's strong mind, I was also touched by the way he ran．With each attempt, he looked so confident and natural．He only wanted to run freely and to do it as well as he could．He was just being a child-just being himself-being completely in the moment．He never gave up．Each time he fell, he got himself back up again, as if he knew that falling down was simply a part of life． 　　He was not looking for others' smiles, or worrying about whether someone was watching or not．He only wanted to run and to feel the experience of running fully and freely．I learned a lot from that experience, and have successfully brought that lesson with me in many parts in my life． (1) From Paragraph 1, we know that the boy's mother ________． [　　] A． was strict with him B． had a special way to educate her son C． didn't love her son as much as others D． was too weak to help her son get up (2) Which is TRUE according to the writer? [　　] A． Kids know they will learn something after falling down． B． Kids do not get themselves up when they fall down． C． Falling is always considered a failure by kids． D． Falling causes kids to give up running freely． (3) The writer was touched by the boy because the boy ________． [　　] A． might stop running when he fell down B． never fell down if he made up his mind to run C． didn't care about the fall and went on running D． was good at running and never fell down (4) What does the underlined word “attempt” mean? It means ________ [　　] A． 攻击 B． 尝试 C． 失败 D． 冲击 (5) What can we learn from the story? [　　] A． Falling down will make a person feel frightened from then on． B． Falling down is the mother of success． C． When others are watching, people fall down easily． D． One will succeed if he/she is confident and never gives up．