(SRJK (C)Malaysia)马来西亚华文小学 School works, diary, drawing, stories, etc. 华文小学日记。。。
Saturday, August 15, 2015
一个铜钱的故事.
有个年轻人,因家境贫寒,辍学回家照顾体弱多病的双亲。
他虽然年少,但是,他做啥都很专心,比如∶他看景时,不走路,因为分心,故,他专心观景,尽情的欣赏;他走路时,不看景,只观路,因为忽略了脚下,就容易摔跤;于是,有一天他行走在路上,专心观路,却捡到了一枚铜钱。
在他走过花园旁,听花匠们说口渴,他有了想法。他当下就用这枚铜钱买了一些茶水送给了花匠们喝。 花匠们喝了,非常感激,便一人送了他一束鲜花。他得到了这些花,路过集市的时候,把花分送给了爱花的人,于是,得到花的人,非常感激他,每人给了他一个铜钱,于是,他拥有了八个铜钱。
一天,一阵狂风过后,果园里到处都是被狂风吹落的枯枝败叶。 年轻人对园丁说∶“我愿意帮助你们把果园打扫干净,这些断枝落叶能让我拿回去做柴火吗?” 园丁很高兴∶“可以,可以,你都拿去吧!”
年轻人捡柴火时,附近有一群小孩为了争抢几粒糖,闹彆扭,于是,年轻人用这八个铜钱买了一些糖果,分给这群玩耍的小孩,并教育孩子们要团结,小孩们非常感激他,看见他一个人正在捡柴火,于是,纷纷帮他把所有的残枝败叶给捡拾的一空┉┉。
年轻人正准备把这些柴火拉回家的时候,这时,走过来一位帮大户人家做饭的厨工,厨工说∶这柴火很好,烧火不冒烟,我们东家有哮喘病,最怕烟了,年轻人听后,说∶那您拿去吧!厨工说∶怎么可以白拿呢?于是,厨工付了16个铜钱拿走了这堆柴火。
年轻人拿着这16个铜钱,心想这么多的钱,可以做好多善事,于是,他想在自家不远处开个茶水摊,正值炎热的夏季,路人们都很口渴,一来可以廉价的卖点茶水贴补家用,二来可以免费给附近500个割草的工人提供茶水,解决喝水问题。于是,500个割草工人,每天都向他点头微笑,并竖起夸讚的大拇指。
不久,一个路过的墒人,也停下来喝水,当墒人听附近的人们说∶这个年轻人真傻,不仅茶水卖的便宜,而且,还天天在这里免费给割草的工人供应茶水时,墒人露出了讚许的目光,告诉他∶“明天有一帮马贩子带400匹马要经过你这里,你多准备一些茶水吧。”
听了墒人的话,年轻人想,这多马匹,肯定要吃草的,于是,他把这个意思对割草的工人说了,于是,每位割草的工人都很慷慨地送了他一捆草!这样,年轻人有了500捆草。
第二天,马帮队伍来了,在茶摊歇脚,看到这么多的好草,于是,便提出要买,年轻人说∶这些草,我没有花钱,你们需要就拿去吧,马帮们笑笑,喝完了茶,便丢下了1000个铜钱拉走了年轻人的500捆草。
几年后,这个地方出了一位远近闻名的大富豪!
【编后语】故事很简单,年轻人的成功不是偶然的,因为他具备了善根和慈悲心。他明白要想得到就一定要付出;他明白大地不生无用之物,断枝落叶也可以为众生所用;他明白成就一件事情,众生的力量是不可估量的;他更加明白掌握机遇的人,才是成就事业的人。
我们每个人都梦想成功,而且机缘就在我们面前,财富就在我们身边。但,有的人却抱怨财运不佳;有的人却埋怨社会不公;更有的人甚至怪罪父母无能┉┉!
其实,我们真正缺乏的正是先人后己的无我心;缺乏的是先舍后得的慈悲心;缺乏的是珍爱大地万物的惜福心;缺乏的是当下就行丶就做的实践行动。
MMMMMMMMMMM
Thursday, April 23, 2015
A donkey that fell into a well
A Moral...
One day a farmer's donkey fell down into a well. The animal cried piteously for hours as the farmer tried to figure out what to do. Finally, he decided the animal was old, and the well needed to be covered up anyway; it just wasn't worth it to retrieve the donkey.
He invited all his neighbors to come over and help him. They all grabbed a shovel and began to shovel dirt into the well. At first, the donkey realized what was happening and cried horribly. Then, to ever...yone's amazement he quieted down.
One day a farmer's donkey fell down into a well. The animal cried piteously for hours as the farmer tried to figure out what to do. Finally, he decided the animal was old, and the well needed to be covered up anyway; it just wasn't worth it to retrieve the donkey.
He invited all his neighbors to come over and help him. They all grabbed a shovel and began to shovel dirt into the well. At first, the donkey realized what was happening and cried horribly. Then, to ever...yone's amazement he quieted down.
A few shovel loads later, the farmer finally looked down the well. He was astonished at what he saw. With each shovel of dirt that hit his back, the donkey was doing something amazing. He would shake it off and take a step up.
As the farmer's neighbors continued to shovel dirt on top of the animal, he would shake it off and take a step up. Pretty soon, everyone was amazed as the donkey stepped up over the edge of the well and happily trotted off!
MORAL :
Life is going to shovel dirt on you, all kinds of dirt. The trick to getting out of the well is to shake it off and take a step up. Each of our troubles is a steppingstone. We can get out of the deepest wells just by not stopping, never giving up! Shake it off and take a step up.
Remember the five simple rules to be happy:
1. Free your heart from hatred - Forgive.
2. Free your mind from worries - Most never happens.
3. Live simply and appreciate what you have.
4. Give more.
5. Expect less from people but more from yourself.
As the farmer's neighbors continued to shovel dirt on top of the animal, he would shake it off and take a step up. Pretty soon, everyone was amazed as the donkey stepped up over the edge of the well and happily trotted off!
MORAL :
Life is going to shovel dirt on you, all kinds of dirt. The trick to getting out of the well is to shake it off and take a step up. Each of our troubles is a steppingstone. We can get out of the deepest wells just by not stopping, never giving up! Shake it off and take a step up.
Remember the five simple rules to be happy:
1. Free your heart from hatred - Forgive.
2. Free your mind from worries - Most never happens.
3. Live simply and appreciate what you have.
4. Give more.
5. Expect less from people but more from yourself.
Friday, March 27, 2015
爱护眼睛, 远离近视(5 年级,演讲稿)
同学们,你们爱看书、爱看电影、爱看电视吗?爱旅游看世界吗?这一切的一切都离不开看。说到看,就离不开我们的眼睛。眼睛是我们直接了解世界的视觉器官。没有眼睛,我们对四周的感觉将是一片黑暗。俗语说:“眼睛是心灵的窗户。”那么,你对你的眼睛了解有多少呢?
眼睛是人类感观中最重要的器官,大脑中大约有80%的知识和记忆都是通过眼睛获取的。读书认字、看图赏画、看人物、欣赏美景等都要用到眼睛。眼睛能辨别不同的颜色、不同的光线,再将这些视觉、形象转变成神经信号,传送给大脑。
1.做到科学用眼,首先,读写姿势要正确:人在读书或写字时,眼与书本保持一尺左右为最佳距离。为此,桌和椅的高低要配套得当,高椅低桌或低椅高桌都不利于眼睛的健康。写字时不要歪头;不要在行走、坐车或乘船途中读书、看报,因为这些行为会使眼睛格外劳累!
2.读写时间要适宜:看书、写字、绘图等用眼时间过长,容易使眼肌疲劳,导致近视。故每读写一小时左右,应到室外远眺或体育活动10分钟,这是消除眼肌疲劳、防止发生近视的有效方法。
3.光线要充足:充足的光线是保持正常视力的重要方面,不可在过暗的光线下读书写字,如黄昏、暗室等。夜间读写时,灯光不可过暗,亦不可晃动或刺眼。阳光或眩耀刺目的灯光下看书写字,非常刺激眼睛,对保护眼睛也不好。
4.看电视时间不可过长:电视为动态画面,观看时间过长,最易导致眼肌疲劳,引起近视。故看电视时间不宜过长,一般要控制在2小时以内,且每看30-60分钟,至少休息5分钟,以使眼睛得到休息。看电视的距离要适宜,一般应在2米以外。在看电视的房间内,要有一定亮度的照明,可开一盏小灯,但光线不可直接照在荧光屏或眼睛上,最好放在后方或旁边。
5.生活起居规律, 加强身体锻炼,提倡户外活动,常晒日光,呼吸新鲜空气。有科学研究报道,多参加户外活动能减少孩童患上近视和减轻近视的度数。生活也要规律,早起早睡,保持充足的睡眠及适当的休息,这也对保护眼睛带来好效果。
6、注意营养,不偏食,不吃零食,多吃素食和富含维生素A的食品及钙质食品,如牛奶、鸡蛋、蔬菜等。良好合理饮食习惯有助于眼睛健康。小学时期是长身体的重要时期,合理良好的饮食习惯不仅对身体有益,对眼睛的健康也十分重要。不偏食,偏食不仅对我们的身体健康不利,还会伤害我们的眼睛。
7.要讲究眼部卫生。眼睛与外界接触,容易受各种病菌的感染。当朋友或周围的人患有红眼症,大家就要注意不用手揉眼,因为手上可能有病菌,揉眼等于直接把病菌“种”到眼睛上,容易被传染到红眼症。平时,也注意不与别人共用毛巾等卫生用品,防止互相传染疾病。
7.要讲究眼部卫生。眼睛与外界接触,容易受各种病菌的感染。当朋友或周围的人患有红眼症,大家就要注意不用手揉眼,因为手上可能有病菌,揉眼等于直接把病菌“种”到眼睛上,容易被传染到红眼症。平时,也注意不与别人共用毛巾等卫生用品,防止互相传染疾病。
Saturday, March 21, 2015
热Heat (五年级科学)
第八课:热Heat
rè yǔwēndù
· 热与温 度(Heat and temperture)
rè duì wùzhì de yǐngxiǎng
· 热对 物质 的 影 响(Effects of heat on matter)
wēndù wùzhìshòurè hòuwēndù shàngshēng wùzhìsanrè hòuwēndù xiàjiàng
[1]温 度:(A)物质 受热后 温度 上升。 物质 散热后 温度下降。(When matter is heated temperature rises, when cooled temperature drops)
cè liangwēndù cèliangyí qì wēndùjì biāozhǔndānwèi shèshìdù
[2]测量 温度:(A)测量仪器:温度计(thermometer) (B)标准单位:摄氏度(’C)(Standard unit for temperature is degree Celcius)
rè duìwùzhìde yǐngxiǎng
[3]热对物质的 影响(Effects of heat on matter):
wùzhìshòurè péngzhàngwùzhì yùlěngshōusuō
(A)物质受热 膨胀。物质遇冷 收缩。(When matter is heated, it expands; when cooled, it contracts)
rèzhànglěngsuō yuánlǐ zàishēnghuózhōngde yingyòng
(B)热胀冷缩 原理在生 活中 的应用:
"受热膨胀,遇冷收缩"
huǒchētiěguǐzhī jiānliú yǒudekōngxì
· 火车铁轨之间 留有 的空隙(gaps in railway tracks)
diànxiàngānshàngsōngchí de diànxiàn
· 电线 杆上 松弛的 电线(more sagging during hot day)
wēndùjì lǐ yètǐ de shēngyǔjiàng
温度计 里液体的 升与降(Liquid in a thermometer rises and falls)
Metal expands when heated.
---=---==-----=----
Reference:
[.] 铁腕遇热膨胀:
Metal expands when heated.
------===-------
[.] What is temperature?
Friday, March 20, 2015
Thursday, March 19, 2015
Variables变数 ( school science)
Variables:
3 types of variables in an experiment:
- The independent variable: is the one that you change or select.
- The dependent variable: is the one changes as a result, and that you may measure it.
- The control variables must not change, so that it is a fair test.
--==----==-----==-----
4 other types of Variables:
---=---=-----
[1] Categoric Variables: These have word labels.
Example 1:
In this experiment on conduction of heat.
The categoric variables are: Copper, iron , glass....
----==-----==------
[2]Ordered Variables:
These are categoric variables that can be ranked, in an order.
Example 1: In this experiment to find the resistance of wires.
The Ordered variables could be: Thick copper wire, medium copper wire, thin copper wire.
---=---=----=---
[3]Discrete variables:
These variables can only have whole number values, 1,2,3,4,…
Example 1: In an experiment to investigate the stretching of a spring. The discrete variables are:
1 unit of weight. 2 units of weights. 3units of weights. …
---=---=----=----
---=---=----=----
[4]Continuous variables:
These variables can have any numerical value.
Example1: In this experiment to investigate the stretching spring.
The continuous variable is:
The length of the spring is 15.2 cm; 15.5cm, 15.8 cm, 16.1cm, …..
Wednesday, March 18, 2015
电Electricity (五年级 科学)
第七课:电 Electricity
diànyuán gandiànchí fādiànjī xiǎoxíngfādiànjī xùdiànchí shuǐlìfādiànzhàn tàiyángdiànchí
[1] 电 源(sources of electricity):干电 池(battery)。发电 机(electrical generator)。小 型 发电 机。蓄电池(lead-acid battery)。水 力发电站(hydro-power)。太阳 电 池(solar power)。
diànlù tú
[2]电 路图(electrical circuits)。
diànlù yuánjiànde fú hào dēngpào gandiànchí kāiguān diànxiàn
[A]电路元件 的符号 (symbols in an electrical circuit)。灯泡(bulb)。 干电池(battery)。开 关(switch)。电 线(wire)。
diànlù zhonglèi chuànliándiànlù bìngliándiànlù
[3]电 路种类 (Types of electrical circuits)。(A)串联电 路(series circuit)。 (B)并联 电 路(parallel circuit)
串联电路(series circuit):灯泡相继地连接,电流只有一条通路。如果一个灯泡坏了,电流不能流通,所以令一个灯泡也不会亮起来!
并联电路(parallel circuit):灯泡并列地连接起来,形成两个分支电路。如果其中一个灯泡坏了,另一个灯泡还会继续发亮。
ān quánshǐyòngdiànqì bùgòngyòngchāzuò zǐ xì yuèdú ānquánshǐyòng shǒucè bǎsǔnhuài
[4]安全 使用 电 器 (use electricity safely)。(A)不共 用 插 座。 (B)仔细阅 读安全 使用 手 册。 (C)把损 坏
dediànqì sòngdàowéixiūzhōngxīn xiāncā ganshǒucáijiē chùchāzuò
的电 器送 到 维修中 心。(D)先 擦干手 才接触 插 座。
yòngdiànbùdāngdehòuguǒ chùdiàn huǒhuàn
[5]用 电 不当 的后果(Danger of electricity)。 (A)触 电(electrical shock)。(B)火 患(fire)
--=--=--=---
Reference:
[.]
[.] Electric circuits:
- 电从哪里来?
- 认识完整电路。
- 什么是串联和并联电路(What's series and parallel circuits?)。
- 如何安全使用电器?
diànyuán gandiànchí fādiànjī xiǎoxíngfādiànjī xùdiànchí shuǐlìfādiànzhàn tàiyángdiànchí
[1] 电 源(sources of electricity):干电 池(battery)。发电 机(electrical generator)。小 型 发电 机。蓄电池(lead-acid battery)。水 力发电站(hydro-power)。太阳 电 池(solar power)。
diànlù tú
[2]电 路图(electrical circuits)。
diànlù yuánjiànde fú hào dēngpào gandiànchí kāiguān diànxiàn
[A]电路元件 的符号 (symbols in an electrical circuit)。灯泡(bulb)。 干电池(battery)。开 关(switch)。电 线(wire)。
[3]电 路种类 (Types of electrical circuits)。(A)串联电 路(series circuit)。 (B)并联 电 路(parallel circuit)
串联电路(series circuit):灯泡相继地连接,电流只有一条通路。如果一个灯泡坏了,电流不能流通,所以令一个灯泡也不会亮起来!
并联电路(parallel circuit):灯泡并列地连接起来,形成两个分支电路。如果其中一个灯泡坏了,另一个灯泡还会继续发亮。
ān quánshǐyòngdiànqì bùgòngyòngchāzuò zǐ xì yuèdú ānquánshǐyòng shǒucè bǎsǔnhuài
[4]安全 使用 电 器 (use electricity safely)。(A)不共 用 插 座。 (B)仔细阅 读安全 使用 手 册。 (C)把损 坏
dediànqì sòngdàowéixiūzhōngxīn xiāncā ganshǒucáijiē chùchāzuò
的电 器送 到 维修中 心。(D)先 擦干手 才接触 插 座。
yòngdiànbùdāngdehòuguǒ chùdiàn huǒhuàn
[5]用 电 不当 的后果(Danger of electricity)。 (A)触 电(electrical shock)。(B)火 患(fire)
--=--=--=---
Reference:
[.]
Electricity:
We depend on electricity in our daily lives. Electricity has made our lives easier and more comfortable. There are many sources of electricity. Many appliances in our homes and schools use electricity. However. we must be very careful when using electrical appliances. Why?
Accumulators are used in vehicles such as motorcycles, cars and lorries. Dynamos generate electricity. They are used to light up the bulb of bicycle. Satellites get their electricity from solar cells. Solar cells transform light energy into electricity. We can also get electricity from hydroelectric power stations.
Electricity is useful in our everyday life. Electrical appliances need proper handling because they can cause injury if they are not used properly. Mishandling of electrical appliances can cause. There are safety precautions that must be taken when using electrical appliances.
Some electrical appliances use dry cells to make them work. Dry cells produce electricity. There are also other sources of electricity such as accumulator, dynamo and solar cell. They are examples of batteries.
An electrical circuit is made up of a power source, wires and other components such as a bulb and a switch. The dry cell is a source of electrical energy for the circuit. A switch is used to break or complete a circuit. The wire allows electricity to flow through the circuit. The bulb lights up because electricity flows through it.
Electricity is useful in our everyday life. Electrical appliances need proper handling because they can cause injury if they are not used properly. Mishandling of electrical appliances can cause. There are safety precautions that must be taken when using electrical appliances.
- Do not touch switches with wet hands.
- Do not connect too many electrical appliances to one power point.
- Do not repair electrical appliances by yourself.
- Do not use electrical appliances that are faulty.
[.] Electric circuits:
Tuesday, March 17, 2015
光的特性 Properties of light (5年级科学)
第六课:光的特性 Properties of light:
guāngyánzhezhíxiànchuánbō
[1]光 沿着 直线 传播。(light travels in a straight line)
yǐngzǐ dedà xiǎo wùtǐ yǔguāngyuándejù lí yuèjìn suǒxíngchéngde yǐngzǐ jiùyuèdà
[A]影子的大小(size of a shadow):物体与光源 的距离越近,所 形成 的影子就越大。
yǐngzǐ dexíngzhuàngguāngyuánzhàoshèdefāngxiànghéwù tǐ bǎishèdefāngshìhuiyǐngxiǎngyǐngzǐ de xíngzhuàng
[B] 影子的形状(shape of a shadow): 光源 照射的方向 和物体摆设的 方式会影响 影子的形 状。
[2]
guāngdefǎnshè dāngguāngzhàoshèzàiwù tǐ debiǎomiànshíhuibèifǎnshè
[2A]光 的反射(light reflection):当 光 照射 在物体的表面 时会被反射。
shèxiàntú
[2B] 射线 图。
fǎnshèyuánlǐ deyingyòng qì chēdehòushìjìng jìngzǐ qiánwàngjìng
[2C] 反射 原理的应用:汽车 的后视镜。镜 子。 潜 望 镜。
[3]
guāngde zhéshè dāngguāngcóngyī zhongjiè zhìjìnrù lìngyī zhongjiè zhìshí huifā shēngzhéshè
[3A] 光的折射(light refraction):当 光 从 一种 介质(media)进入另一种介质时,会发生 折 射。
zhéshèxiànxiàng
[3B] 折射(refraction phenomenon) 现象:
shuǐdǐ deyìngbì kànqǐ lái zàijiàoqiǎndewèizhì
。水底的硬币/鱼看 起来在 较浅 的位置。
tòuguòshèngshuǐde bō lí bēisuǒkàndàodezì bǐ jiàodà
。透 过盛水 的玻璃杯 所看到的字 比较 大。
shuǐlǐ debǐ kànqǐ lái hǎoxiàngzhéduànle
。水里的笔看 起来好像 折断 了。
yúgānglǐ deyú qǐ lái bǐ shíjì de dà
。鱼缸 里的鱼起来比 实际的大。
---=---=----=-----
References:
[.] Light and shadows:
[.]
- 光的传播(Light travels)。
- 光的反射(Reflection of light)。
- 光的折射(Refraction of light)。
- 巧妙运用光的特征(Light properties and its uses)。
guāngyánzhezhíxiànchuánbō
[1]光 沿着 直线 传播。(light travels in a straight line)
yǐngzǐ dedà xiǎo wùtǐ yǔguāngyuándejù lí yuèjìn suǒxíngchéngde yǐngzǐ jiùyuèdà
[A]影子的大小(size of a shadow):物体与光源 的距离越近,所 形成 的影子就越大。
yǐngzǐ dexíngzhuàngguāngyuánzhàoshèdefāngxiànghéwù tǐ bǎishèdefāngshìhuiyǐngxiǎngyǐngzǐ de xíngzhuàng
[B] 影子的形状(shape of a shadow): 光源 照射的方向 和物体摆设的 方式会影响 影子的形 状。
[2]
guāngdefǎnshè dāngguāngzhàoshèzàiwù tǐ debiǎomiànshíhuibèifǎnshè
[2A]光 的反射(light reflection):当 光 照射 在物体的表面 时会被反射。
shèxiàntú
[2B] 射线 图。
fǎnshèyuánlǐ deyingyòng qì chēdehòushìjìng jìngzǐ qiánwàngjìng
[2C] 反射 原理的应用:汽车 的后视镜。镜 子。 潜 望 镜。
[3]
guāngde zhéshè dāngguāngcóngyī zhongjiè zhìjìnrù lìngyī zhongjiè zhìshí huifā shēngzhéshè
[3A] 光的折射(light refraction):当 光 从 一种 介质(media)进入另一种介质时,会发生 折 射。
zhéshèxiànxiàng
[3B] 折射(refraction phenomenon) 现象:
shuǐdǐ deyìngbì kànqǐ lái zàijiàoqiǎndewèizhì
。水底的硬币/鱼看 起来在 较浅 的位置。
tòuguòshèngshuǐde bō lí bēisuǒkàndàodezì bǐ jiàodà
。透 过盛水 的玻璃杯 所看到的字 比较 大。
shuǐlǐ debǐ kànqǐ lái hǎoxiàngzhéduànle
。水里的笔看 起来好像 折断 了。
。鱼缸 里的鱼起来比 实际的大。
---=---=----=-----
References:
[.] Light and shadows:
[.] Reflection of light:
[.]Reflection of light 2
[.] Refraction of light.
[.]
能(Energy) (第五课 5 年级科学 )
第五课。能(Energy)
。无所不在的能 (Energy is everywhere)
。能的转换(Energy transformation--energy can be transformed from one form to another)
。可更新和不可更新的能源(Renewable and Non-renewable Energy sources)
-----------///-------------///--------------///--------------///---------------///-------------
néngdelái yuán tài yáng fēng shuǐ hǎilàng shíwù diànchí shēngwùzhì hézǐnéng huàshíránliào
1] 能的来源(Energy Sources):太阳。风。水。海浪。 食物。电池(battery)。 生物质(biomass)。核子能(nuclear energy)。化石燃料。
néngdexíngshì tàiyángnéng rè néng huàxuénéng diànnéng dòngnéng shēngnéng shìnéng guāngnéng hézǐ néng
2]能的形式(Different forms of energy):太阳能(solar energy)。热能(heat)。化 学 能(chemical)。电 能(electrical)。动能(kinetic)。声能(sound)。势 能(potential energy)。光 能(light)。核子能(nuclear energy)。
wǒménbùkě yǐ chuàngzàohuòxiāomiènéng dànshìkě yǐ bǎnéngcóngyī zhongxíngshìzhuanhuànchénglìngyī zhong xíngshì
3] 我们不可以创造或消灭 能, 但 是可以把能 从 一种 形式转换成 另 一种形式。(Energy cannot be created or destroyed; it can only be changed from one form to another.)
rú diànfēngshàn diànnéng dòngnéng
如:(1)电 风 扇。 电能 - - -〉动能。
néngyuán
4] 能源(Energy Sources):
kěgèngxīnde néngyuán fēng tàiyáng shuǐ shēngwùzhì hǎilàng shíwù
[A]可更新的能源(Renewable Energy Sources):
风(wind energy)。太阳(solar energy)。水(hydropower energy)。生物质(biomass energy)。海浪。食物。
bù kěgèngxīndenéngyuán shíyóu méi hézǐ néng diànchí
[B] 不可更新的能 源(Non-renewable Energy Sources):
石油(fossil fuel)。煤(coal)。核子能(nuclear /atomic energy)。电池(battery)。
kěgèngxīnde néngyuánkě yǐ bèibǔ chōnghé zàishēngér bù kěgèngxīndenéngyuánzébù néng
5] 可更新的能源 可以被补充 和再生,而不可更新的能 源 则不能。
bùkě gèngxīnde néngyuánhuiyǒu hàojìn deyītiān suǒyǐ wǒménbì xūmíngzhì dì shǐyòngzhèxiēnéngyuán
6]不可更新的能源 会有耗 尽的一天, 所 以我们 必须明智地使用 这些能 源。
wǒményingbù duànyánfā gèngduōxīnde néngyuánbìngduōshǐyòngkěgèngxīnde néngyuán
7] 我们应不断 研发更多 新的能源 并 多使用 可更新的能源。
[.] Energy in our daily life:
Each day we experience multiple forms of energy. For example, in the morning you eat breakfast (chemical energy), walk/ bike/ drive to school (mechanical energy / kinetic), and come into a classroom full of light (light energy) and sound (sound energy).
On the board are magnets (magnetic energy) holding items in place, shooting a rubber band across the room is an elastic (elastic energy to kinetic energy); A pencil falling to the ground is (gravitational energy transforms to kinetic energy), at the front of the room is a smartboard with the day's lesson (electrical energy to light energy). Even though we may just be learning the names, we are very used to using all forms of energy.
[.] Energy conversion/transformation:
[.] Energy:
Energy is important to our lives. We use energy to do work. Energy lights up our cities. Energy moves our cars, trains and enables us to watch televisions. What would happen if there is no energy?
Living things carry out life processess. Energy is needed to carry out these processes. Energy is also needed by non-living things. The energy is used to make them usable. The Sun gives us heat and light energy. Plants use sunlight to make food. Humans and animals get energy form the food they eat. Their sources of food include plants and other animals.
Fuels such as coal, petroleum and natural gas are sources of energy too. These fuels are formed from dead plants and animals that lived millions of years ago.
Energy can be transformed form one form to another. Switching on the light transforms electrical energy into light energy. A burning candle transforms chemical energy into light energy and heat energy. Solar powered signal light uses sunlight as the source of energy. The solar energy is transformed into electrical energy and then into light energy.
The energy we use everyday comes from various resources. These resources are divided into renewable energy and non-renewable energy.
[.] Using energy responsibly:
[.]US Energy consumption by source:
[.]
。无所不在的能 (Energy is everywhere)
。能的转换(Energy transformation--energy can be transformed from one form to another)
。可更新和不可更新的能源(Renewable and Non-renewable Energy sources)
néngdelái yuán tài yáng fēng shuǐ hǎilàng shíwù diànchí shēngwùzhì hézǐnéng huàshíránliào
1] 能的来源(Energy Sources):太阳。风。水。海浪。 食物。电池(battery)。 生物质(biomass)。核子能(nuclear energy)。化石燃料。
néngdexíngshì tàiyángnéng rè néng huàxuénéng diànnéng dòngnéng shēngnéng shìnéng guāngnéng hézǐ néng
2]能的形式(Different forms of energy):太阳能(solar energy)。热能(heat)。化 学 能(chemical)。电 能(electrical)。动能(kinetic)。声能(sound)。势 能(potential energy)。光 能(light)。核子能(nuclear energy)。
wǒménbùkě yǐ chuàngzàohuòxiāomiènéng dànshìkě yǐ bǎnéngcóngyī zhongxíngshìzhuanhuànchénglìngyī zhong xíngshì
3] 我们不可以创造或消灭 能, 但 是可以把能 从 一种 形式转换成 另 一种形式。(Energy cannot be created or destroyed; it can only be changed from one form to another.)
rú diànfēngshàn diànnéng dòngnéng
如:(1)电 风 扇。 电能 - - -〉动能。
shǒudiàntǒng huàxuénéng diànnéng guāngnéng rè néng
(2)手电 筒。 化学能---〉电能 ---〉光能 + 热能。
néngyuán
4] 能源(Energy Sources):
kěgèngxīnde néngyuán fēng tàiyáng shuǐ shēngwùzhì hǎilàng shíwù
[A]可更新的能源(Renewable Energy Sources):
风(wind energy)。太阳(solar energy)。水(hydropower energy)。生物质(biomass energy)。海浪。食物。
bù kěgèngxīndenéngyuán shíyóu méi hézǐ néng diànchí
[B] 不可更新的能 源(Non-renewable Energy Sources):
石油(fossil fuel)。煤(coal)。核子能(nuclear /atomic energy)。电池(battery)。
kěgèngxīnde néngyuánkě yǐ bèibǔ chōnghé zàishēngér bù kěgèngxīndenéngyuánzébù néng
5] 可更新的能源 可以被补充 和再生,而不可更新的能 源 则不能。
bùkě gèngxīnde néngyuánhuiyǒu hàojìn deyītiān suǒyǐ wǒménbì xūmíngzhì dì shǐyòngzhèxiēnéngyuán
6]不可更新的能源 会有耗 尽的一天, 所 以我们 必须明智地使用 这些能 源。
wǒményingbù duànyánfā gèngduōxīnde néngyuánbìngduōshǐyòngkěgèngxīnde néngyuán
7] 我们应不断 研发更多 新的能源 并 多使用 可更新的能源。
---=-----=-----=----=-----
Reference:[.] Energy in our daily life:
Each day we experience multiple forms of energy. For example, in the morning you eat breakfast (chemical energy), walk/ bike/ drive to school (mechanical energy / kinetic), and come into a classroom full of light (light energy) and sound (sound energy).
On the board are magnets (magnetic energy) holding items in place, shooting a rubber band across the room is an elastic (elastic energy to kinetic energy); A pencil falling to the ground is (gravitational energy transforms to kinetic energy), at the front of the room is a smartboard with the day's lesson (electrical energy to light energy). Even though we may just be learning the names, we are very used to using all forms of energy.
[.] Forms of Energy:
[.] Energy:
Energy is important to our lives. We use energy to do work. Energy lights up our cities. Energy moves our cars, trains and enables us to watch televisions. What would happen if there is no energy?
Living things carry out life processess. Energy is needed to carry out these processes. Energy is also needed by non-living things. The energy is used to make them usable. The Sun gives us heat and light energy. Plants use sunlight to make food. Humans and animals get energy form the food they eat. Their sources of food include plants and other animals.
Fuels such as coal, petroleum and natural gas are sources of energy too. These fuels are formed from dead plants and animals that lived millions of years ago.
Energy is found in different forms. The batteries in a toy car produce electrical energy to move it. Objects that move have kinetic energy. A burning candle gives off light energy and heat energy. A strectched rubber band in a catapult has potential energuy.
Energy can be transformed form one form to another. Switching on the light transforms electrical energy into light energy. A burning candle transforms chemical energy into light energy and heat energy. Solar powered signal light uses sunlight as the source of energy. The solar energy is transformed into electrical energy and then into light energy.
The energy we use everyday comes from various resources. These resources are divided into renewable energy and non-renewable energy.
[.] Using energy responsibly:
[.]US Energy consumption by source:
[.]
植物的生命过程 Plant life processes (第四课.五年级 科学)
第4 课:植物的生命过程
· 植物的自卫(Plants and self-defense)
· 植物如何确保物种的生存(How do plants ensure survival of its species?)
· 植物物种生存的重要性(The importance of survival of plant species )
zhíwùyǐ běnshēntè yǒude tèzhēng lì rúcì jiāorǔ xì máo dúsù héchòuwèilái zì wèi
[1]植物以本身 特有 的特征(charateristics),例如刺(thorn/spine/prickle)、胶 乳(latex)、细毛(tiny hair)、毒素(poison)和臭味(bad smell) 来自卫(self-defence)。
细毛。
zhíwùshì yingè liè deqì hòuhéjì jié zhuanhuànde tèzhēng
[2]植物适应 (adapt) 恶劣的气候 和季节转换 的特征:
ganzàodeqì hòuhé jì jiéde zhuanhuàn
[2a]干燥的气候 和 季节的转换:
chánggēn zhǔcúnshuǐdejīng juǎnqǔdeyèzǐ zhēnzhuàngyè luòyè
长根(long root)。 贮存水的茎(stem that stores water)。 卷曲的叶子(curly leaf)。 针状叶(needle-like leaf)。 落叶(defoliation)。
针状叶
qiángfēng
[2b]强 风:
yǔzhuàngyè
羽状叶(Pinnate leaves)。
zhíwùlì yònggè zhongfāngfǎ láichuánbō zhongzǐ huòguǒzǐ rú shuǐlì fēnglì rénlèi huòdòngwù zì dòngbào liè
[3]植物利用 各种 方法来传 播种子或 果子(plants use many methods to disperse their seeds and fruits),如水力、风力、人类或 动 物、自动 爆裂(explode)。
bù tóngde zhíwù yǒubù tóngdechuánbō fāngfǎ yīncǐ tāménde zhongzǐ huòguǒzǐ jù bèibù yī yàngdetè zhēng
[4]不同 的植物有 不同 的传播 方法(dispersal methods),因此它们 的种子或 果子具备 不一样 的特征。
zhíwùxū bǎzhongzǐ huòguǒshíchuánbō dàolí mǔshùjiàoyuǎndedì fāng yǐ bì miǎnfā shēngyòumiáoyǔmǔshùyǐ jí qí tā
[5]植物须把 种子或 果实 传播到 离母树 较远 的地方,以避免 发生 幼苗 与母树以及其他
deyòumiáojìngzhēngkōngjiān shuǐfen yángguānghé yǎngliàodeqíngkuàngcóngér quèbǎowùzhongdeshēngcún
的幼苗 竞争 空间(space)、水分(water)、阳光(sunlight) 和养料(nutrient)的情 况,从 而确保 物种 的生存。
zhíwùshì hěnduōshēngwùde shíwùlái yuán yīncǐ zhíwùwù zhongdeshēngcúnduìqí tāde shēngwùhěnzhongyào
[6]植物是很 多生物的 食物来源(food source of many living things)。因此,植物物种 的生存 对其他的生物很重 要。
--=----=-----=----=---=---==---
Reference:
[1] Plants adapt to dry environment:
[2] Seeds dispersal: By wind, by explosion, by water...
· 植物的自卫(Plants and self-defense)
· 植物如何确保物种的生存(How do plants ensure survival of its species?)
· 植物物种生存的重要性(The importance of survival of plant species )
--=--=---=---=---=---
========
========
zhíwùyǐ běnshēntè yǒude tèzhēng lì rúcì jiāorǔ xì máo dúsù héchòuwèilái zì wèi
[1]植物以本身 特有 的特征(charateristics),例如刺(thorn/spine/prickle)、胶 乳(latex)、细毛(tiny hair)、毒素(poison)和臭味(bad smell) 来自卫(self-defence)。
刺
细毛。
zhíwùshì yingè liè deqì hòuhéjì jié zhuanhuànde tèzhēng
[2]植物适应 (adapt) 恶劣的气候 和季节转换 的特征:
ganzàodeqì hòuhé jì jiéde zhuanhuàn
[2a]干燥的气候 和 季节的转换:
chánggēn zhǔcúnshuǐdejīng juǎnqǔdeyèzǐ zhēnzhuàngyè luòyè
长根(long root)。 贮存水的茎(stem that stores water)。 卷曲的叶子(curly leaf)。 针状叶(needle-like leaf)。 落叶(defoliation)。
针状叶
qiángfēng
[2b]强 风:
yǔzhuàngyè
羽状叶(Pinnate leaves)。
zhíwùlì yònggè zhongfāngfǎ láichuánbō zhongzǐ huòguǒzǐ rú shuǐlì fēnglì rénlèi huòdòngwù zì dòngbào liè
[3]植物利用 各种 方法来传 播种子或 果子(plants use many methods to disperse their seeds and fruits),如水力、风力、人类或 动 物、自动 爆裂(explode)。
bù tóngde zhíwù yǒubù tóngdechuánbō fāngfǎ yīncǐ tāménde zhongzǐ huòguǒzǐ jù bèibù yī yàngdetè zhēng
[4]不同 的植物有 不同 的传播 方法(dispersal methods),因此它们 的种子或 果子具备 不一样 的特征。
zhíwùxū bǎzhongzǐ huòguǒshíchuánbō dàolí mǔshùjiàoyuǎndedì fāng yǐ bì miǎnfā shēngyòumiáoyǔmǔshùyǐ jí qí tā
[5]植物须把 种子或 果实 传播到 离母树 较远 的地方,以避免 发生 幼苗 与母树以及其他
deyòumiáojìngzhēngkōngjiān shuǐfen yángguānghé yǎngliàodeqíngkuàngcóngér quèbǎowùzhongdeshēngcún
的幼苗 竞争 空间(space)、水分(water)、阳光(sunlight) 和养料(nutrient)的情 况,从 而确保 物种 的生存。
zhíwùshì hěnduōshēngwùde shíwùlái yuán yīncǐ zhíwùwù zhongdeshēngcúnduìqí tāde shēngwùhěnzhongyào
[6]植物是很 多生物的 食物来源(food source of many living things)。因此,植物物种 的生存 对其他的生物很重 要。
--=----=-----=----=---=---==---
Reference:
[1] Plants adapt to dry environment:
[2] Seeds dispersal: By wind, by explosion, by water...
[3]Plant adaptations:
Subscribe to:
Posts (Atom)