问题 填空题

高强电闪.雷击频繁时,应停止()、()作业。

答案

参考答案:加油;卸油

完形填空
A group of adults, highly succeeded in their jobs, went to visit their old professor. Soon they began to         the stress in work and life.
The professor went to the kitchen and returned      a pot of coffee  and  all  kinds  of cups-crystal(水晶的), glass, plastic, some nice looking, some plain looking, some     , some cheap. And he told them to help       to the coffee. When all the students had a cup of coffee in hand, the professor said, "I've noticed that all the nice looking expensive cups were     , leaving behind the plain and cheap ones. While it is      for you to take only the best for yourselves, that is the root of your     and stress. You know that the cup itself adds no quality to the coffee.       you really wanted was coffee, not the cup,     you consciously went for the best cups.
Now consider this.Life is the coffee. The jobs, money and     in society are the cups. They are just      to hold life. and the type of cup does not change the quality of our life. Sometimes, by       only of the cup, we fail to enjoy the coffee that God has    us. God offers us the coffee, not the cups.  Please enjoy your coffee ! "
The happiest people don't have the best of everything. They just make       of everything.
Live simply. Love generously. Care deeply. Speak    . And leave the rest to God.
小题1:
A.think ofB.thank forC.complain aboutD.drop out
小题2:
A.forB.atC.inD.with
小题3:
A.expensiveB.ordinaryC.strongD.serious
小题4:
A.themB.themselvesC.himD.everyone
小题5:
A.mixed upB.left .C.taken upD.refused
小题6:
A.normalB.importantC.impossibleD.necessary
小题7:
A.thoughtsB.failureC.questionsD.problems
小题8:
A.WhoB.How muchC.WhatD.That
小题9:
A.andB.butC.soD.or
小题10:
A.position (职位)B.ageC.healthD.purpose
小题11:
A.cupsB.tools(工具)C.bagsD.bowls
小题12:
A.puttingB.gettingC.turningD.thinking
小题13:
A.taughtB.providedC.returnedD.bought
小题14:
A.funB.useC.the bestD.the worst
小题15:
A.kindlyB.sadlyC.rudelyD.seriously
填空题

阅读以下材料回答问题。

材料1:常言道“种瓜得瓜,种豆得豆”,这简练而又朴实的语言真切地反映了生物界遗传现象。神秘的遗传现象的物质基础,就是存在于细胞核中的DNA,DNA又和蛋白质一起组成了染色体。染色体是细胞核中载有遗传信息(基因)的物质,在细胞发生有丝分裂时期容易被碱性染料着色,因此而得名。在无性繁殖如扦插、嫁接、组织培养成的物种中,生物体所有细胞的染色体数目都一样。

材料2:研究结果表明,每一个染色体含有一个脱氧核糖核酸(DNA)分子,每个DNA分子含有很多个基因,一个基因是DNA分子的一部分。现代遗传学认为,基因是具有遗传效应的DNA 片段。

材料3:通常说遗传是由基因决定的,当细胞分裂时,细胞核内的染色体能准确无误地复制出一套全新的染色体给子细胞,其脱氧核苷酸排列顺序和结构与母细胞的完全相同,所以父母的遗传信息全盘正确地传递至子代。

(1)由材料1可知,遗传物质是                 ,它和                 一起组成染色体。

(2)阅读材料2,把染色体、基因、DNA按所含信息量从小到大排序:                            

(3)我们知道,细胞分裂后,子细胞和母细胞中的染色体形态和数目             。阅读材料3后可知,这是因为染色体