初一英语Unit6Electricity.ppt

1、,Unit 6,Module 3 Natural elements,Electricity,electricity, 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,While I was cooking supper, the electricity went off.,What do you know about electricity? 你对电了解多少？,know about了解,konw 知道，了解。know about 知道（听说的那种）。（你可以说你know about邓小平，但不能说你know他， 因为know要两者都

2、认识。）,Electricity gives us power.“电给我们提供能量。,give sth. to sb.give sb. sth,power station,make electricity,cable,wire,light bulb,Electricity flows through wires. 电从电线中流过。,.,The Thames always flow through London,flow through 流过,Its like water, in a way.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 rig

3、ht. 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 the way. 他学习一直很努力.,Electricity comes i

4、nto our flat through thin wires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,connect 连接 常用结构: be connected to sth. 连接到 ; connect sth. to/with 把和连接起来.,Turn on your computer and connect it to the Inte

5、rnet.,The railway line connects Wuhan to Shanghai.,The cables connected to a power station电缆连接到发电站,There are different ways of producing electricity.,how to produce electricity,In our daily lives, what kinds of things needs electricity ?,bulb电灯泡，cooker厨具，fridge冰箱，washing machine洗衣机，air conditioner空调

6、,Electricity safety用电安全,1、Keep the outside of the pot dry. 让锅的外表保持干燥。,rice cooker 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用电安全,rice cooker 电饭锅,2、Do not switch it on if the pot

7、 is empty . You must switch off the electricity.,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、Unplug it when you are not using it.在你不用它时候，要拔去电源插头。,washing machine洗衣机,Microwave微波炉,Do no

8、t turn it on when it is empty. Turn it off.Because it might start a fire.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,Stand at least one meter away from the microwave when it is on.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 d

9、ay. You should at least have warned her. 你至少该警告她。,Before you put an object in a microwave, make sure it is microwave safe.在你把物品放进微波炉之前，确保它适用于微波炉。,Electricity all around,Daisy said:“Im going to buy a packet of sweets. 黛西说：“我要去买包糖。,sweet adj. 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

10、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_alotofsweetsinthebox,alotof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,知识点：a packet of 一袋。其后可接可数名词复数或不可数名词用来表示数量。,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。 a piece of meat; a piece of paper; a glass of apple juice; a bag

11、of milk,不可数名词的数量表示2以上时： 数词+单位量词（复数）+of+不可数名词 two glasses of water; three cups of tea,a +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,Does anyone want anything?“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,eve

12、ryone,something,nothing等复合不定代词作主语,谓语动词用单数,Benny replied, Can you get me a packet of electricity?“本尼回答道：“你能帮我带包电吗？,get=bring带,reply回答，回应，过去式replied,Grace was too terrified to reply.,Yes, I can,said Daisy. Then she went out. “好的。”黛西说。接着她就出去了,Benny laughed, “She cant buy electricity in packets like swe

13、ets本尼大笑道：“她是不可能像买糖一样一包包地买电的！”,laugh笑; 发笑; 嘲笑 常用laugh at sb嘲笑某人,Hes just started learning. dont laugh at him. 他刚学，别笑他,Shell look foolish.”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,He was angry with himself for having made such a foolish mistake.,What a fool I was to

14、 believe he is a good man!,Mum said, You mustnt say that, Benny!“妈妈说：“你不该那么说，本尼！”,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mustnt,Wemustgotoschoolnow. 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,Youmustntforge

15、ttophoneJulia,以must提问的一般疑问句,意为“必须吗”. 肯定回答用must（必须）, 否定回答用neednt或dont/doesnt have to（不必）.如,-Must I finish the work today?我必须在今天之内完成工作吗?,-Yes,you must.是的,你必须. -No,you neednt.不,你不必. -No,you dont have to.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。 Wewontplaycomputersgamesaga

16、in. 我们将不会玩电脑游戏。,He will be home at six.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,有“可以”的意思,You may go now.你可以走了.May I use your computer?我用一下你的电脑可以吗?,Wemayhave some raintoday 今天可能会下点雨。,表示猜测,通常只用于陈述句.例如：You may be right.你可能是对的.,Shemaynotcome她未必来,回答以 may 开头的疑问句有如下表达法：-May

17、I smoke here?我可以在这儿抽烟吗?肯定回答-Yes,you may./ Yes,please.请抽吧.否定回答-No,you cant. -No,you mustnt. -No,youd better not.请不要抽烟.,can的用法：表示有能力做某事,意为“能、会”.如：The girl can sing in English.表示许可,意为“可以”,如：You can drive my car to the post office.表示推测,意为“也许,可能”.如：He cant be your brother,you dont look the same.,Everyone

18、 here can speak English.这儿人人会说英语,You cant use the bike.,二怎样使用情态动词？ 1.情态动词无人称和数的变化； 例： Icandoit.Hecandoit.Youcandoit. 2.不能单独使用，必须与其后的动词原形构成谓语 例如：Icandoit.,运用适当的情态动词填空。 must,can,may,mustnt,neednt,cant. 1._youtellmethewaytotheBeijingRoad? 2._Ihavesomebread? 3.Thechairiswet.You_sitonit. 4._Icomein? 5.We

19、_handinourhomeworkintime. 6._weborrowbookswithanIDcard?No,you_. 7._Ireturnthebookintime?No,you_. 8.We_listentohimfirst.,Can,May,cant,May,must,Must,neednt,Can,cant,must,1. youtellmethewaytotheBeijingRoad?,Ihavesomebread?,3.Thechairiswet.You_sitonit.,A moment later, Daisy came back.过了一会儿，黛西回来了。,a mome

20、nt later 一会儿，没多久,A moment later, my friend came down . 过不多久，我的朋友下来了。,The waiter goes into the room with the beer a moment later. 片刻之后，服务员端着啤酒走进了雅间。,It is overcast in the sky. It must rain a moment later. 天阴沉沉的，过一会儿一定会下雨。,(1)moment 可数名词,意为”瞬间;片刻” Id like to talk to you for a moment.,与moment相关的短语: a m

21、oment ago 刚刚;刚才 He was here a moment ago. at the moment 现在;此刻 He is at home at the moment. wait a moment 等一会儿 Wait a moment, please.,May I have my packet of electricity? Benny asked. “能把我的那包电给我吗?”本尼问道。,情态动词may,We may have some rain today 今天可能会下点雨。,Here you are! said Daisy.But. these are batteries! s

22、aid Benny.,“给你！”黛西说道。 “但.这些是电池啊！”本尼说。,battery电池,The chemicals inside batteries produce electricity.电池里的化学物质可以产生电。,produce，动词，产生，生产。名词形式为production,Mum said, Who looks foolish now,Benny?妈妈说：“现在谁出丑了，本尼？”,Discussion Who looks foolish in the end?,Circle the correct answers to complete the sentences.,If

23、you reply to a question, you _ it. ask B. answer 2.A foolish person usually does _ things. harmful B. silly 3.When my computer is connected to the Internet, the Internet _ my computer and the other computers in the world together. joins B. carries,A,B,B,4. If you ask someone to wait for a moment, you will come back in _. A. a long time B. a short time 5. Batteries provide toy cars with _. A. electricity B. heat,B,A,C2. Complete the passage below