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作文。

       题目:读懂            

       要求:(1)先将题目补充完正整,横线上可填“爸爸、妈妈、爷爷、老师、朋友”等词语;(2)要写真实的内容,抒发真情实感;(3)字数在600字左右,文章中不要使用真实的人名、校名、地名。

阅读理解

    What will man be like in the future — in 5,000 or even 50,000 years from now? We can only make a guess, of course, but we can be sure that he will be different from what he is today. For man is slowly changing all the time.

Let us take an example. Man, even five hundred years ago, was shorter than he is today. Now, on the average, men are about three inches taller. Five hundred years is a relatively (相对地) short period of time, so we may suppose that man will continue to grow taller.

    Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain's capacity (容量.) As time goes on, however, we shall have to use our brains more and more and finally we shall need larger ones! This is likely to bring about a physical change too. The head, especially the forehead, will grow larger.

    Nowadays our eyes are being used too much. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over a very long period of time it is likely that man's eyes will grow stronger.                      

    On the other hand, we tend (有…的趋势) to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive (敏感的) because they are used a great deal in modern life.

    What about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both men and women are probably to be hairless!

    Perhaps, all this gives the impression that future man will not be a very attractive (有吸引力的) person to look at! This may well be true. All the same, besides these changes, future man will still have a lot in common with us. He will still be a human being, with thoughts and feelings similar to our own.

  1. (1) Future man is probably to be different from us in ________ ways.
    A . two B . three C . four D . five
  2. (2) Future man's head will grow larger because ________.
    A . he will use his brain more and more as time goes on B . he makes use only 80% of the brain's capacity C . the other 80% of his brain will grow faster D . his brain has grown larger over the past centuries
  3. (3) What will be probably TRUE about the man in the future?
    A . He will have smaller eyes and will wear better glasses. B . His fingers will grow weaker because he won't use them. C . He will be hairless because hair is no longer useful. D . He will think and feel in a different way.
  4. (4) What does the writer write the article for?
    A . To give us some knowledge of future man. B . To show that man's life will be different in the future. C . To let us know future man will become shorter. D . To tell us future man will not use legs.
如图电路中,甲、乙两处分别接入电流表或电压表.当S闭合后,为使两灯均能发光,则(   )

A . 甲接电流表,乙接电压表 B . 甲、乙均接电流表 C . 甲、乙均接电压表 D . 甲接电压表,乙接电流表
在下面一段文字横线处补写恰当的语句,使整段文字语意完整连贯。

世上有两个地方最为“神秘,一个是宇宙,。破解宇宙秘密,人类可解开“我们从何而来的”的悬案,破解人脑的秘密,人类可得“我们将向何处去”的清晰展望。破解人脑的功能原理,依其原理制造“人工大脑”,已成为众多科学家追求的目标。人脑极其复杂,仿造人脑各有高招儿。美国授巨资启动的“脑计划”,是想通过“人造神经技术”修复人脑的病态,将因病受损的人脑部件用“人造大脑零件修复起来,以达到治疗阿尔茨海默氏症、癫痫、帕金森症等疾病的目的。美国的“脑计划”看似治脑病,——能修复人脑,等于站在了再造人脑的门坎上了呀。

在如图所示的几何体中,四边形 是菱形, 是矩形, 的中点.

  1. (1) 平面 平面
  2. (2) 在线段 上是否存在点 ,使二面角 的大小为 ?若存在,求出 的长度;若不存在,请说明理由.
如图所示,电子枪接入电路后发射电子,其正下方水平直导线内通有向右的电流,则(   )

A . 电子束从B射向A B . 电子束向上偏转,速率保持不变 C . 电子束向上偏转,速率越来越小 D . 电子束向下偏转,速率越来越大
化学电池已成为人类生产生活的重要能量来源之一,化学电池是根据原电池原理制成的。依据如下装置图,回答下列问题:

  1. (1) 若X为Zn,Y为硫酸铜溶液,溶液中的Cu2+移向(填“Cu”或“X”)电极,当电路中转移0.2mole-时,电解质溶液质量增加g。
  2. (2) 若用如图装置,依据反应Fe+2Fe3+=3Fe2+设计原电池,则电极X应为(填化学式),电解质溶液Y的溶质为(填化学式),铜极的电极反应式为
  3. (3) 若Y为稀硫酸,X为铁,则铜为(填“正”或“负”)极;若Y为浓硝酸,X为铁,则铁为(填“正”或“负”)极,铁极的电极反应式为
阅读下列材料:
中国曲阜国际孔子文化节,是中华人民共和国国家旅游局确定的国家级、国际性“中国旅游节庆精选”之一。由国家旅游局和山东省人民政府联合主办,济宁市人民政府、曲阜市人民政府联合承办。于每年孔子诞辰(公历9月28日)期间,即公历9月26日至10月10日,在中华民族始祖轩辕黄帝诞生地、孔子故乡、著名历史文化名城山东省曲阜市举行。下图中的“祭孔”就是该文化节的一个重要组成部分。
请完成下列问题:
该文化节是纪念哪位历史人物?后人为何如此隆重地纪念他?

中国人民政治协商会议全国委员会副主席董建华称,世界的经济增长点在亚洲,亚洲现在是世界的经济中心,亚洲大部分国家属于(   )

A . 发展中国家 B . 社会主义国家 C . 发达国家 D . 非独立国家
下列实验操作中,正确的是(   )
A . 实验桌上酒精着火用水浇灭 B . 未说明药品用量,液体取5mL左右,固体只需盖满试管底部 C . 为避免浪费,实验用剩的药品放回原试剂瓶 D . 玻璃仪器内壁附着的水既不聚成水滴,也不成股流下,表示仪器已洗涤干净
积累与感悟

老师叫小民到办公室去,小民的心里像。(填一句合适的歇后语)

粮库中为了将储存的粮食保持更长的时间,可采取以下条件中的哪一项(  )

A . 低温、干燥、增加氧气浓度 B . 高温、干燥、增加氧气浓度 C . 低温、干燥、增加二氧化碳浓度 D . 低温、潮湿、增加二氧化碳浓度
我国现存最早、最完整、最系统的古代农业科学著作是(    )
A . 《氾胜之书》 B . 《齐民要术》 C . 《农书》 D . 《农政全书》
我国年降水量分布的总趋势是(   )

A . 从东向西递减 B . 从南向北递减 C . 从西南向东北递减 D . 从东南沿海向西北内陆逐渐减少
如图,在△ABC中,已知点E、F分别是AD、CE边上的中点,且S△BEF=3cm2 , 则S△ABC的值为cm2 .

图片_x0020_100012

如图1,已知在平面直角坐标系xOy中,四边形OABC是边长为3的正方形,其中顶点A,C分别在x轴的正半轴和y轴的正半轴上.抛物线y=-x2+bx+c经过A,C两点,与x轴交于另一个点D.

  1. (1) ①求点A,B,C的坐标;

    ②求b,c的值.

  2. (2) 若点P是边BC上的一个动点,连结AP,过点P作PM⊥AP,交y轴于点M(如图2所示).当点P在BC上运动时,点M也随之运动.设BP=m,CM=n,试用含m的代数式表示n,并求出n的最大值.
人口普查的内容通常不包括(   )
A . 年龄构成 B . 性别构成 C . 文化构成 D . 幸福指数
下面四个网站中,哪个网站是专业的搜索引擎网站。(  )
A . www.163.com B . www.sohu.com C . www.baidu.com D . www.hao123.com
如图是表示人体内的三个正在进行分裂的细胞,请据图回答下列问题:

  1. (1) 甲图表示分裂期细胞;图中有染色体条,DNA分子个.
  2. (2) 乙图中有同源染色体对,其子细胞为
  3. (3) 丙图细胞分裂形成的子细胞为
  4. (4) 三图中含有染色单体的是
  5. (5) 乙图表示(分裂及时期),丙图表示(分裂及时期).
解方程:20.9+2.4x=24.74

x=(   )

A . 1.6 B . 10.7 C . 0.36 D . 3.4
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