1.简答题- (共1题)

(1)Vc是由 元素组成的;
(2)Vc的中氧的原子个数X的值为 ;化学式可表示为 ;
(3)小辉妈妈每天服用该Vc片剂,小辉建议妈妈可食用西红柿来代替Vc片,若100g[西红柿含Vc30mg,则小辉妈妈每天食用西红柿 g即可达到服用上述Vc片的效果。
2.选择题- (共4题)
阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。
The world always makes way for the dreamer.
When I was twelve years old, my father took me to see Zig Zigler. I remember sitting in that dark hall listening to Mr. Zigler 1everyone's spirits up to the ceiling. I 2there feeling like I could do anything. When we got to the car, I turned to my father and said, “Dad, I want to 3 people feel like that.” My father asked me 4I meant. “I want to be a motivational(激发积极性的)speaker just like Mr. Zigler,” I replied. A(An)5 was born.
Recently, I began seeking my dream of motivating others. 6 a four-year relationship with Fortune 100 Company 7 as a sales-trainer and ending as a regional(地区的) sales manager, I left the company at the height of my 8. Many people were 9 that I would leave after earning a six-figure income(收入). And they wondered10I would risk everything for a dream.
I made my 11 to start my own company and leave my worryingless position(职位)after 12a regional sales meeting. The vice-president of our company made a 13 that changed my life. He asked us, “If a god would offer you three wishes, what would they be?” After giving us a 14 to write down the three wishes, he then asked us, “Why do you need a 15 ?” I would never forget the power I felt at that moment. I realized that 16 I had accomplished in the past had prepared me for this moment. I was ready and didn't need a god's help to become a motivational speaker. A motivational speaker was 17 .
Having made that decision, I was immediately18. One week after I gave notice, my husband was laid off (下岗) from his job, and now we had no 19. But I held fast to my dream. The wonder really began to happen. In a short time my husband found a better job. And I was able to book several 20 engagements(业务)with new customers. I discovered the unbelievable power of dreams.
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
The benefits of keeping a journal(日志)
If you want to grow, one important thing you should do is keep a journal. It may seem simple, but it can make a big difference in your life. I have been keeping journals for years. Writing all the lessons I learn and all the ideas I get has become a habit for me. {#blank#}1{#/blank#} Here are some benefits you will get by keeping a journal.
♦ It prevents you from losing an idea. Have you ever gotten an idea and lost it later because you didn't write it down? {#blank#}2{#/blank#} But then I developed the habit of writing down every idea that came into my mind as soon as possible. If I am away from my computer, I usually write it down on a piece of paper that I bring wherever I go. I will then transfer the idea to the journal in my computer.
♦ It helps you review all the lessons you've learned. By reviewing your journal, you can quickly see the lessons you've learned and the ideas you've gotten. {#blank#}3{#/blank#} You can use the ideas to propel yourself forward.
♦ {#blank#}4{#/blank#} After keeping a journal for years, you can look back at it and see how far you've gone. Things that were big problems in the past might seem small today. The raw ideas you had in the past have been realized today.
♦ It helps you expand your ideas. When you try to come up with a sentence to express an idea, you are thinking actively about it. {#blank#}5{#/blank#} In the end, you will expand your ideas.
A.I often experienced that myself.
B.It trains you to express your thoughts.
C.It allows you to see your progress over time.
D.Just use whatever tool you feel comfortable with.
E.Thinking actively helps you connect your idea to another idea.
F.And to be honest, I can't imagine what my life would be like without it.
G.Then you can do whatever necessary to avoid repeating the same mistakes.
3.单选题- (共1题)
4.填空题- (共3题)
族 周期 | I A | II A | IIIA | IVA | VA | VIA | VIIA | 0 |
2 | 3 Li 锂 6.941 | 4 Be 铍 9.012 | 5 B 硼 10.81 | 6 C 碳 12.01 | 7 N 氮 14.01 | 8 O 氧 16.00 | 9 F 氟 19.00 | 10 Ne 氖 20.18 |
3 | 11 Na 钠 22.99 | 12 Mg 镁 24.31 | 13 Al 铝 26.98 | 14 Si 硅 28.09 | 15 P 磷 30.97 | 16 S 硫 32.06 | 17 Cl 氯 35.45 | 18 Ar 氩 39.95 |
(1)请从上表中查出关于硼元素的一条信息:_______________ ____________。
(2)不同元素的本质区别是( )
A.质子数 B.电子数 C.中子数 D.相对原子质量
(3)如图是钠原子的结构示意图,判断该原子容易 (填“得到”或“失去”)电子,钠离子的符号为

(4)在元素周期表中,同一族(纵行)的元素具有相似的化学性质。则下列各组元素具有相似化学性质的是 (填标号)。
a.C和Ne b.Be和Mg c.Al和Si d.F和Cl
(5)第9号氟元素和氢元素形成的化合物的水溶液氢氟酸(HF),可用于玻璃雕刻, 其主要原理是氢氟酸与玻璃的主要成分二氧化硅(SiO2)发生反应,生成四氟化硅气体(SiF4)和水(H2O,用化学式表示该反应 。

(1) 有些村庄打深井取用地下水.检验地下水是硬水还是软水,可选用的物质是 ;使用硬水会给生产和生活带来许多麻烦,如_______________ (举一例);生活中可以用 方法将硬水转化为软水。
(2)有些村民取浑浊的坑水作生活用水,有的同学利用所学的知识将浑浊的坑水用简易净水器(如上图所示)进行净化,其中小卵石、石英砂的作用是 ;(填操作名称)
(3)我国规定生活饮用水的水质必须达到下述四项指标:
a.不得呈现异色 b.不得有异味 c.应澄清透明 d.不得含有细菌和病毒.
其中“a、b指标”可以利用活性炭具有 作用操作达到。
(4)节约用水是每个人都要遵守的公德,因为水还是一种很重要的资源,水在通电的条件下可以分解,其反应的文字表达式为: 属于 反应(填“化合”或“分解”)
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【1】题量占比
简答题:(1道)
选择题:(4道)
单选题:(1道)
填空题:(3道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:4
7星难题:0
8星难题:0
9星难题:1