题目

在点燃蜡烛时,小红发现有一根烛芯沾有食盐的蜡烛比普通蜡烛燃烧的时间长一些,请你与小红一起探究,并回答相关问题.  【提出问题】盐是否能延长蜡烛的燃烧时间?  【猜    想】一定量的食盐可延长蜡烛的燃烧时间;  【实验探究】探究不同质量的食盐对蜡烛燃烧时间的影响  实验方案:取6支相同的蜡烛,在其中5支烛芯周围分别放入不同质量的食盐,另1支作对照实验,分别测定它们的燃烧时间.  实验结果:  食盐质量(g)00.10.50.70.91.0 燃烧时间(分钟)10151You can have the same neighbors for years. You love them or you think you love them. And you hope that they love you. But do you ever really understand them? Charlie Kemp and his family lived next door to me for 15 years. We were good friends all the time. I enjoy friendship. I think it's the best thing in the world. And friendship with the Kemps was easy because they seemed to welcome it. They were interesting and clever people. Their house caught fire twice, and twice the whole family slept in mine. They were always losing things like money, keys and watches. Pictures fell off the walls, the children fell out of bed…I was their neighbor and their friend. Life was always interesting, never dull. Best of all, I liked the whole family. One day, I lit a fire in the garden to burn some rubbish. After some time Charlie Kemp came out of his house and walked up the road. “Morning, Charlie，” I said. “It's a lovely day, isn't it？” He smiled at me and nodded. I went on with my work.Twenty minutes later, a policeman arrived. He walked into my garden and said, “You'll have to put out that fire. Your neighbor has complained(抱怨) to us. He doesn't like the smell.”“My neighbor？” I asked.“Yes，” the policeman took out his notebook and read, “Charlie Kemp. He lives next door, doesn't he？”1.According to the passage, ________．A. Charlie Kemp is the writer's neighbor and his real good friendB. Charlie Kemp is the writer's neighbor but not his real good friendC. Charlie Kemp treats the writer as his real good friendD. the writer doesn't treat Charlie Kemp as his real good friend2.The writer was blamed(责备) by the policeman because ________．A. he was found burning the rubbish by the policemanB. he was found polluting the environment by burning the rubbishC. his neighbor Charlie Kemp complained about his action and called the policemanD. he burnt something of his neighbors3.The writer's experience tells us that ________．A. a friend in need is a friend indeedB. it is difficult to understand a person, even yourfriendC. anyone is sure to be friendly to you if you are friendly to himD. friendship is the best thing in the world4.When the writer heard the policeman's words, he maybe felt________．A. happy B. sad C. relaxed D. interested