寂静作文200字

篇一：科学作文200字

科学作文200字

篇一：科学作文200字：振动可以传声

湖南省岳阳市岳阳楼区新路口小学三年级 翁启辉

有一天，我和妈妈在院子里玩。我看到邻居家的小孩用两个一次性杯子和毛线做了一个像听筒一样的玩具。我也想玩，妈妈把那个玩具借过来。我无意中发现声音可以从一个杯子里传到另一个杯子里。

我回家也做了一个。我把毛线弯曲，在中间放一个障碍物，就听不见声音了。把毛线拉直，把障碍物清除，就可以听见声音。

这是为什么？毛线怎么可以传声音呢？我想，可能是毛线振动传声吧！如果毛线弯曲或者碰到障碍物，就会干扰到毛线振动，所以听不到声音。这和电话线的传声原理有相似之处。只是电话线用的是电磁波，这个利用的是声波。

（指导老师 付静）

篇二：科学作文200字

今天的>科学课上龚老师给我们准备了一杯满满的水，还有一盒回形针。老师把回形针一个一个地放在水里，只见水里冒起一串串小气泡，回形针无声地沉下去了。杯子里的回形针越来越多，水面越来越高，可是杯子里的水始终没有溢出来。这是怎么回事呢？老师告诉我们，这是因为水有张力。有一半同学猜到了这个结果，另一半人没猜到。最后大家分组重新做了一遍这个实验，有的同学不小心，水还是冒了出来，看来张力的作用也是有限的。

篇三：科学作文200字：科学奥秘

今天上数学课时，罗老师带我们去多媒体教室参观“科学”。里面可真热闹，我最难忘的是人体导电和万花筒，人体导电是有两个铁球，我左手握着球，右手牵着同学们的手，最后一位同学扶着另外一个球，接着按下按钮，忽然，奇迹发生了，中间的环发出五颜六色的光芒，我们被这美丽的光芒迷住了，情不自禁地大叫一声“哇，太美了！”万花筒跟我想象的不一样，我原本以为只有几朵花罢了，可出乎了我的意料，一共有好多朵呢！我准备数一下，“1，2，3，4，5，6??”可一转起万花筒，不一会儿就数乱了，这是因为它有好几堆，每一朵都一模一样，总让人看得眼花缭乱。科学可真神奇！长大我一定要当个科学家。 《科学作文200字》

篇二：小学作文：我成功了作文200字

我成功了作文200字

我刚看见这样一个作文题目：我成功了，就想起了妈妈教我打羽毛球的事。

以前，因为我课余时间不爱出去玩，缺少运动，妈妈就(来自:www.Zw2.cn 爱 作文 网)想教我打羽毛球，丰富丰富我的课余生活。起先，我很不情愿，因为我笨手笨脚的，怎么也学不会，再加上羽毛球也并不是很好玩，所以我总是提不起精神。但妈妈并不灰心，仍然坚持教我发球，慢慢的，我体会到了打球的乐趣，并常常与别人切磋球艺。可是问题仍然存在，我只善于发球，而接不到一个球，于是，周奇奇、陈田隆他们鼓励我学会接球，慢慢的，我也学会了接球，并且能和他们对打了。

啊!这一切，都得感谢妈妈和我的朋友，是他们教会了我打羽毛球。我成功了!

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篇三：3.21作文寂静

20130304作文寂静

20130304作文寂静 ...................................................................................................... 1

一、软件公司只招临时工到底靠不靠谱 ................................................................... 2

二、游乐园要不要改变Slogan ................................................................................... 3

三、Oak city’s new shopping mall ............................................................................... 4

四、Carlo’s clothing 投放radio广告博收益.............................................................. 5

五、Blastcom公司更换新能源开矿技术 ................................................................... 6

六、是否要再投资Pizza/Golf/Playhouse ................................................................... 7

七、化妆品公司考虑更换代言人 ............................................................................... 8

八、Motel决定将房费拆开支付 ................................................................................ 8

九、在杂货店增加pharmacy增大range策略.......................................................... 9

十、调查认为投诉可以无视【航空】 ..................................................................... 10

十一、升级IT可以提高利润 .................................................................................... 12

十二、是不是需要对橘类水果进行价格管制 ......................................................... 13

十三、 Olympic食品公司 ......................................................................................... 15

十四、把豪华生产线改成普通生产线 ..................................................................... 16

十五、是否要加入连锁店 ......................................................................................... 17

十六、足球比赛与经济发展 ..................................................................................... 18

十七、互动计算机指导会不会降低辍学率 ............................................................. 20

十八、 Olympic食品公司 ......................................................................................... 21

十九、小城市Market公司举措提高customer loyalty........................................... 23

二十、健身器材提高健康水平 ................................................................................. 24

二十一、cookville工厂降低成本实现目标.............................................................. 25

二十二、冰激凌公司的借贷要求 ............................................................................. 26

二十三、减少选课提供是否会有收益 ..................................................................... 28

一、软件公司只招临时工到底靠不靠谱

【原始】

有个叫 JSoftware company 连续三年都没make no profit, 公司想要cut budget. 看到auto industry replace full time employment with cheaper, temporary workers，减少了cost, make 了profit. 于是 J公司想要借鉴这个方法并且觉得这个方法也会对自己公司奏效。决定马上把25%的full time employment转成临时工，觉得能实现short term higher profit 和对公司未来发展有好处。

【考古】

V1 1月JJ

讲的是一个J software design 公司过去一段时间不盈利（或者亏钱了），有人就提议说，用temporary employee 代替full-time employee，理由就是这些人拿钱比full-time 少的多（好像同时暗示工作时间少的不是那么多），并且还不用公司支付他们employeebenefits。 既然已经是这么个情况了，通过将25%的workforce换成临时工可以减少开支。

这个反驳比较简单吧，如果某些文科同学对于逻辑解析不擅长的话我推荐一个：既然是临时工，那么他们很有可能同意时期内在几家公司打工，这些公司也都是software design。 正如我们常规认知，这些design公司相对其他领域的公司更加看重公司内部idea的保密工作，而且这样的design公司占领市场一个非常有效的方式就是开发出一款新好用的软件，这样雇佣大量的临时工很可能让公司失去这样咸鱼翻身的机会。

V2：一家software design company为了cut budget,决定switch 25%的

workforce to temporary labor。作者给了两个理由， 1. temporary worker 工资低， 没有福利，会降低成本。 2. 汽车行业用同样的方法实现了复苏。 最后进一步说， 采取这种办法以后会有short-term financial gain 和 long-term 的stability.

V3：某人呼吁某software company 用auto industry 的strategy，因为

auto industry把permanent 员工换成了temporary 员工，所以profit增加了。 Software company也可以这样，因为temporary员工工资低。预计如果software company采用这种方法，短期利润会增高，长期会取得stability

V4：Jetsam Software Design hasn't made a profit for long time, and it should follow the example of the lead in the auto industry that replaces its expensive, fulltime employees with cheaper, temporary employees.因为临时工只要pay一半工钱而且不用帮他们缴福利benefits然后说in auto industry how successful such a shift is，So JSD决定switch 25% workforce to temporary labor to make

the same change for the long-term success and stability of the company

二、游乐园要不要改变Slogan 有一个marketing director of amusement park,说amusement park最近的attendance和ticket sale下降了。虽然这个park基本是为了给孩子们的，但是家长才是最终的决定者（是否要去这个park）。这个director提到了一个来自automotive industry的 research，这个调查显示60%的购车者在购车时把safety作为top priority。所以这个director说这个amusement park应该改变他们的slogan，从原来的“ do all what you want”（原话不是do,但意思差不多），转变成“Thrill kids, safety....”，这个campaign的转变可以increase attendance和ticket sale。

目前还没找到考古，先提供一些思路，欢迎大家集思广益，一起补充这道题！！

【参考思路】

1、汽车行业的经验不能套用在游乐园

2、不能确定游乐园大家最关心的是安全，有可能是交通，娱乐性啊什么的

3、虽然说家长是去不去游乐园的最终决定者，但是他们会充分考虑孩子的意见，不能忽略孩子在决策中的作用

4、游乐园没人去不一定是宣传口号不对，有可能是地理位置偏僻、票价太高等等，即使换了口号也还是没人去

三、Oak city’s new shopping mall

【考古】11月JJ39

The following editorial appeared in the Elm City paper.

“The construction last year of a shopping mall in downtown Oak City was a

mistake. Since the mall has opened, a number of local businesses have closed, and the downtown area suffers from an acute parking shortage, and arrests for crime and vagrancy have increased in the nearby Oak City Park. Elm City should pay attention to the example of the Oak City mall and deny the application to build a shopping mall in Elm City.”

【参考思路】

所有问题和商场的建设可能并没有因果关系因果关系 作者只给出了不好的结果而没有给出好的影响。可能提供了更多的就业机会，增加税收收入，刺激恶劣经济，带来了该地区经济的繁荣。 Oak city 和Elm city 不能做类比，因为这两座城市的经济状况，基础设施和生活水平都是不同的。

【参考范文】

此范文与该题略有出入，是老版本的题目，请大家在考场上小心：

老题题干：

“The construction of last year of a shopping mall in downtown Oak City has done little for the residents of the community. Since the mall has opened, a number of local businesses have closed, and the downtown area suffers from an acute parking shortage. In addition, because the mall’s owner lives in nearby Elm City, the profits derived from sales at the mall are not being returned to the community. These problems, coupled with the increase in trash and litter in nearby Oak City park, demonstrate that Oak City did not use good judgment in allowing the construction of the mall in the first place.”

In this editorial the author rebukes Oak City for allowing the construction of a new downtown shopping mall. Citing a number of problems that have occurred since the building of the mail, the author concludes that the residents of Oak City have not benefited from the mail and that Oak City exercised poor

judgment in allowing the mail to be built. Among the problems cited by the

author are the closure of local businesses, lack of parking in the downtown area,

and increased trash and litter in a city park near the mall. Moreover, the author argues that profits derived from sales are not benefiting Oak City because the owner of the mall lives in another city. The author’s argument is problematic in several respects.

In the first place, the author assumes that addition of the new mall is the cause of the various problems cited. The only evidence offered to support this claim is that the construction of the mall occurred before these problems manifested themselves. However, this evidence is insufficient to establish the claim in question. A chronological relationship is only one of the indicators of a causal relationship between two events.

In the second place, the author has focused only on negative effects the mall has had on the city. A more detailed analysis of the situation might reveal that the positive benefits for the city far outweigh the problems on which the author focuses. For example, new jobs might have been created for the residents of Oak City, and tax revenues might have been increased for the city. Lacking a more comprehensive analysis of the impact of the mail on Oak City, it is

presumptuous on the part of the author to conclude that Oak City’s decision to allow the mall to be built was incorrect.

In conclusion, the author’s argument is unconvincing. To strengthen the

argument the author would have to demonstrate that the construction of the mall caused the various problems mentioned. The author would also have to show that the negative effe

四、Carlo’s clothing 投放radio广告博收益 【原题】考古JJ 18

The following appeared in a memorandum from the owner of carlo’s Clothing to the staff.

“Since disc Depot, the music store on the nest block, began a new radio advertising campaign last year, its business has grown dramatically, as

evidenced by the large increase in foot traffic into the store. While the Disc Depot’s owners have apparently become wealthy enough to retire, profits at Carlo’s Clothing have remained stagnant for the past three years. In order to boost our sales and profts, we should therefore switch from newspaper advertising to frequent radio advertisements like those for Disc Depot.”

【参考思路】

因果错误1 DD老板挣钱的原因没有给出。他们有很多人去不一定都是购买的，购买也不一定是挣钱的。老板可能是干别的挣钱。即使挣钱，去年挣钱是不是和广告有关系，是不是去年潮流就是挺CD啊什么的，DD是不是还有其他的营销