初一英语Unit6Electricity.ppt

1、Unit 6Module 3 Natural elementsNatural elementsElectricityelectricity,n.电力；电流，静电链接：electrical电的,有关电的；electric电的,导电的,电动的WhileIwascookingsupper,theelectricitywentoff.What do you know about electricity?你对电了解多少？你对电了解多少？know about了解了解konw知道，了解。knowabout知道（听说的那种）。（你可以说你knowabout邓小平，但不能说你know他，因为know要两者都认识

2、。）Electricity gives us power.“电给我们提供能量。电给我们提供能量。givesth.tosb.givesb.sth Do you know how electricity comes to our homes?power stationmake electricitycablewirelight bulbElectricity flows through wires.电电从电线中流过。从电线中流过。.TheThamesalwaysflowthroughLondonflow through 流过流过Its like water,in a way.从某种程度上讲，它就像

3、水一样从某种程度上讲，它就像水一样it a way 在某种程度上In a way,you are right.在某种程度上,你是对的.与way的相关短语:In the way 妨碍;挡道His hobby sometimes gets in the way of his studies.有时他的爱好妨碍了他的学业.on the way 在途中;在路中He is on the way to school now.他现在在上学的途中.by the way 顺便问一下By the way,who is Tom?顺便问一下,谁是汤姆?all the way 一直He studies hard all

4、the way.他学习一直很努力.Electricity comes into our flat through thin wires电通过细电线来到我们家。电通过细电线来到我们家。come into 进入之内Water comes into our houses through pipes(管线；管道；管子).wire电线These are connected to cables under the street这些电线连接着街道下的电缆这些电线连接着街道下的电缆connect 连接 常用结构:be connected to sth.连接到;connect sth.to/with 把和连接起

5、来.Turn on your computer and connect it to the Internet.The railway line connects Wuhan to Shanghai.The cables connected to a power station电缆连接到发电站电缆连接到发电站There are different ways of producing electricity.how to produce electricity how to produce electricityIn our daily lives,what kinds of things nee

6、ds electricity?bulb电灯泡，cooker厨具，fridge冰箱，washingmachine洗衣机，airconditioner空调Electricity safety用电安全1、Keeptheoutsideofthepotdry.让锅的外表保持干燥。ricecooker电饭锅电饭锅(1)“keep+sb./sth.+形容词”意为“让某人/某物保持某种状态”。(2)keep doing sth.连续不断地做某事，一直做。强调不断重复的动作。Li Lei keeps buying books about cars.李雷不断地买有关车的书。Electricity safety用电

7、安全ricecooker电饭锅电饭锅2、Donotswitchitonifthepotisempty.Youmustswitchofftheelectricity.switch n.开关Where is the light switch?电灯开关在哪儿?switch on 开启。switch off关闭When the clock struck twelve,I switched off TV and went to bed.时钟敲响十二点时,我关了电视上床睡觉。1、Unplugitwhenyouarenotusingit.在你不用它时候，要拔去电源插头。washingmachine洗衣机Mi

8、crowave微波炉Donotturnitonwhenitisempty.Turnitoff.Becauseitmightstartafire.当它空着时，不要打开它（的开关），因为它可能会引起火灾。turn off 关上 switchoff(switch on,turn on打开)Microwave微波炉Standatleastonemeterawayfromthemicrowavewhenitison.当它开着时，站在离微波炉至少一米远的地方。at least 至少A child must sleep at least eight hours a day.You should at lea

9、st have warned her.你至少该警告她。Beforeyouputanobjectinamicrowave,makesureitismicrowavesafe.在你把物品放进微波炉之前，确保它适用于微波炉。ElectricityallaroundDaisy said:“Im going to buy a packet of sweets.黛黛西说：西说：“我要去买包糖。我要去买包糖。sweetadj.甜的;愉快的，快乐的;温柔的，亲切的;芳香的;n.甜味;糖果，甜食;餐后的甜点心;宝贝当它解释为糖果的时候是可数名词，如解释为甜品时就是不可数名数，所以要分情况讨论。There_alo

10、tofsweetsintheboxalotof后面的sweets有S,是复数形式,所以要填ARE如果是candy,sugar就要用is了,因为candy,sugar都是不可数名词知知识点：点：a packet of 一袋。其后可接可数名一袋。其后可接可数名词复数或不可数名复数或不可数名词用来表示数量。用来表示数量。不可数名词没有复数形式，在表示数量时，不可数名词的数量表示一时：常用“a+单位量词+of+不可数名词”结构。apieceofmeat;apieceofpaper;aglassofapplejuice;abagofmilk不可数名词的数量表示2以上时：数词+单位量词（复数）+of+不可

11、数名词two glasses of water;three cups of teaa+单位量词+of+可数名词复数a basket of eggs;a bag of apples数词+单位量词+of+可数名词复数two packets of sweets;three bags of pencils表示可数名词时表示可数名词时Does anyone want anything?“还有人要带点什么东西吗？还有人要带点什么东西吗？”anyone做主语时，谓语动词要用第三人称单数，还someone,anyone,noone,everyone,something,nothing等复合不定代词作主语,谓语

12、动词用单数Benny replied,Can you get me a packet of electricity?“本尼回答道：本尼回答道：“你能帮我带包电吗？你能帮我带包电吗？get=bring带reply回答，回应，过去式repliedGracewastooterrifiedtoreply.Yes,I can,said Daisy.Then she went out.“好的。好的。”黛西说。接着她就出去了黛西说。接着她就出去了Benny laughed,“She cant buy electricity in packets like sweets本尼大笑道：本尼大笑道：“她是不可能像买

13、糖一样一包包地买电的！她是不可能像买糖一样一包包地买电的！”laugh笑笑;发笑发笑;嘲笑嘲笑常用常用laugh at sb嘲笑某人Hesjuststartedlearning.dontlaughathim.他刚学，别笑他Shell look foolish.”她要出丑了。她要出丑了。”foolish，adj.愚蠢的；鲁莽的；荒谬的，可笑的链接：fool(n.)傻瓜+ish foolish(adj.)愚蠢的Hewasangrywithhimselfforhavingmadesuchafoolishmistake.What a fool I was to believe he is a good

14、 man!Mum said,You mustnt say that,Benny!“妈妈说：妈妈说：“你不该那么说，本尼！你不该那么说，本尼！”本单元难点（情态动词）本单元难点（情态动词）Must表示“必须，必要”否定mustnt表示“禁止，不准”注意，must提问否定回答使用neednt,而不能用mustntWemustgotoschoolnow.我们现在必须去学校。Wemustntswimintheriver.我们不准在河里游泳。Imusthurry,Imustntbelate.Theremustbesomethingwrong.一定有什么毛病了YoumustntforgettophoneJ

15、ulia以以must提问的一般疑问句提问的一般疑问句,意为意为“必须必须吗吗”.肯定回答用肯定回答用must（必须）（必须）,否定回答用否定回答用neednt或或dont/doesnthaveto（不必）（不必）.如如-MustIfinishtheworktoday?我必须在今天之内完成工作吗?-Yes,youmust.是的,你必须.-No,youneednt.不,你不必.-No,youdonthaveto.不,你不必.Will表示“将来”，常用语一般将来时；否定为“wont”Hewillbebackintenminutes.她十分钟内将回来。Wewontplaycomputersgamesa

16、gain.我们将不会玩电脑游戏。Hewillbehomeatsix.他六点回家。Iwontgoouttoday;Illstayinandwork.今天我不出去了，我留在家里工作May表示许可或征求对方的许可表示许可或征求对方的许可,有有“可以可以”的意思的意思Youmaygonow.你可以走了.MayIuseyourcomputer?我用一下你的电脑可以吗?Wemayhavesomeraintoday今天可能会下点雨。表示猜测,通常只用于陈述句.例如：Youmayberight.你可能是对的.Shemaynotcome她未必来回答以回答以may开头的疑问句有如下表达法：开头的疑问句有如下表达法：-MayIsmokehere?我可以在这儿抽烟吗?肯定回答-Yes,youmay./Yes,please.请抽吧.否定回答-No,youcant.-No,youmustnt.-No,youdbetternot.请不要抽烟.can的用法：的用法：表示有能力做某事,意为“能、会”.如：ThegirlcansinginEnglish.表示许可,意为“可以”,如：Youcandrivemycartoth