分析 本文主要讲述了一个有着科学热情和爱迪生天赋的小男孩佩顿的故事,在六年级时就运用他的数学和科学技能创造出了对人类有重大意义的无砂沙袋,使人们能更方便的对抗洪水与飓风,他的发明同时获得了专家的称赞,被认为能挽救很多人的生命和财产,佩顿也会继续思考和发明更多东西.
解答 46.D 细节理解题.Today he was named the winner of the Young Scientist Challenge for his sandbag.由第二段最后一句话可知佩顿是因为他发明的沙袋而获得了青年科学家挑战冠军.故选D
47.A 细节理解题.由第三段佩顿说的话中可知,他小时候经历过飓风的威胁,差点失去生命,因此想到要发明无砂沙袋"I had a really terrifying experience with a hurricane,"said Peyton."When I was 4,I experienced Hurricane Wilma.When it hit Florida in October 2005,my family and I crowded in a closet and watched the storm bring damage and death to our area,feeling terrible and hopeless."故选A
48.B 细节理解题.由第五段第一句可知Instead of filling it with sand,I filled it with just the right amount of chemicals and salt.佩顿的沙袋中所含的是化学物质和盐,而不是沙子,因此与普通沙袋的不同在于其内容物,故选B
49.C 细节理解题.由第五段以及第六段可知佩顿的无砂沙袋在干燥的时候只重一磅或两磅,而遇水会膨胀变大,因此它湿了之后会变得更重.They only expand when doused with water.The bags are portable when dry and will not float away when wet.What's amazing is that when you pick these bags up and they're not wet,they only weigh a pound or two."故选C
50.D 理解推断题.仔细阅读文章可以发现佩顿发明的沙袋遇水会变重,因此可以阻挡洪水,故D正确.误解分析:由第六段最后一句the engineering chairman at the University of Miami."We'd love to have him at our university"只是想要佩顿去他们大学而没有确定,因此选项A错误;Experts praised his invention and said that the sandless sandbag could someday save a lot of lives and possessions.由第六段,科学家说佩顿的无砂沙袋未来的摩天为挽救生命和财富是将来时,而现在没有发生,故选项B错误;佩顿并没有给他的沙袋计划一个好的未来,故选项C错误;故选D
点评 考点:本文考察学生对记叙类阅读的理解,以及学生对文章细节的掌握和由文章所作出的推断,需要学生认真阅读后从原文寻找答案.
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假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。
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删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
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Yeram Kwon is the head of a company in South Korea. Her business is called I.M.Lab. It makes a product that helps people learn to perform the lifesaving technique called CPR. She said she has learned how to solve some of her business's problems by attending Google events in Seoul.
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