问题
填空题
根据酸的通性和碱的通性填上物质的类别完成下列知识结构网络图。
答案
①金属氧化物 ②酸碱指示剂
题目分析：酸能与金属、金属氧化物、碱、盐反应；碱能与非金属氧化物、酸、盐反应。
搜题请搜索小程序“爱下问搜题”
根据酸的通性和碱的通性填上物质的类别完成下列知识结构网络图。
①金属氧化物 ②酸碱指示剂
题目分析：酸能与金属、金属氧化物、碱、盐反应；碱能与非金属氧化物、酸、盐反应。
完形填空 （共20小题；每小题1.5分，满分30分） 阅读下面短文，从短文后各题所给的四个选项（ABCD）中，选出可以填入空白的最佳答案，并在答题卡上将该选项涂黑。 Preparing for tomorrow Sixth-grade schoolteacher Ms．Shelton believed in readiness．Students remembered how she walked in on the first day of class and began writing words of eighth-grade on the 36 ．They quickly protested that the words were not on their 37 and they couldn’t learn them． Their teacher insisted that the students could and would learn these 38 ．She said that she would teach them something that should be given．Ms．Shelton 39 by saying that one of the students in the classroom could g  o on to 40 , maybe even be president someday, and she wanted to prepare them for that day．Ms．Shelton spoke those words many years ago． 41 did she know that someday one of her students—Jesse Jackson—would take them 42 ．She believed that if they were well prepared, they could 43 high goals． Ralph Waldo Emerson once said, “People only see what they are 44 to see．” If that’s true, then it is also 45 that they only become what they are prepared to become．And many things in life are just about getting ready． “I want to be doing something more 46 with my life than what I am doing now,” a young man once said to me．He 47 what he was doing was just not that important．Other people have said things to me such as, “I only 48 I had a meaningful relationship．” And, “I’d really like to get a better job, but  I just don’t see 49 ．”You fill in the blanks．What is it you would like to 50 that isn’t happening? Perhaps the answer is that you are not yet 51 ．Maybe you need more time to prepare before you are truly ready for that which  you 52 ．Think of today as another chance to 53 yourself for the exciting future you are looking for．Today is not wasted．If you desire more from 54 , then you can use today as training．For you will experience only what you are prepared to 55 ．Something wonderful can happen．And you can use today to get ready for tomorrow．
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