初一英語Unit6Electricity.ppt

1、,Unit 6,Module 3 Natural elements,Electricity,electricity, n.電力；電流，靜電,鏈接：electrical電的, 有關(guān)電的； electric電的, 導電的, 電動的,While I was cooking supper, the electricity went off.,What do you know about electricity? 你對電了解多少？,know about了解,konw 知道，了解。know about 知道（聽說的那種）。（你可以說你know about鄧小平，但不能說你know他， 因為know要兩者都

2、認識。）,Electricity gives us power.“電給我們提供能量。,give sth. to sb.give sb. sth,power station,make electricity,cable,wire,light bulb,Electricity flows through wires. 電從電線中流過。,.,The Thames always flow through London,flow through 流過,Its like water, in a way.從某種程度上講，它就像水一樣,it a way 在某種程度上 In a way, you are rig

3、ht. 在某種程度上,你是對的.,與way的相關(guān)短語:,In the way 妨礙;擋道 His hobby sometimes gets in the way of his studies. 有時他的愛好妨礙了他的學業(yè).,on the way 在途中;在路中 He is on the way to school now. 他現(xiàn)在在上學的途中.,by the way 順便問一下 By the way, who is Tom? 順便問一下,誰是湯姆?,all the way 一直 He studies hard all the way. 他學習一直很努力.,Electricity comes i

4、nto our flat through thin wires電通過細電線來到我們家。,come into 進入之內(nèi),Water comes into our houses through pipes(管線；管道；管子).,wire電線,These are connected to cables under the street這些電線連接著街道下的電纜,connect 連接 常用結(jié)構(gòu): be connected to sth. 連接到 ; connect sth. to/with 把和連接起來.,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電纜連接到發(fā)電站,There are different ways of producing electricity.,how to produce electricity,In our daily lives, what kinds of things needs electricity ?,bulb電燈泡，cooker廚具，fridge冰箱，washing machine洗衣機，air conditioner空調(diào)

6、,Electricity safety用電安全,1、Keep the outside of the pot dry. 讓鍋的外表保持干燥。,rice cooker 電飯鍋,(1 )“keep + sb. / sth. + 形容詞” 意為“讓某人/某物保持某種狀態(tài)”。 (2) keep doing sth. 連續(xù)不斷地做某事，一直做。強調(diào)不斷重復的動作。 Li Lei keeps buying books about cars. 李雷不斷地買有關(guān)車的書。,Electricity safety用電安全,rice cooker 電飯鍋,2、Do not switch it on if the pot

7、 is empty . You must switch off the electricity.,switch n.開關(guān) Where is the light switch?電燈開關(guān)在哪兒?,switch on 開啟。switch off關(guān)閉 When the clock struck twelve, I switched off TV and went to bed. 時鐘敲響十二點時, 我關(guān)了電視上床睡覺。,1、Unplug it when you are not using it.在你不用它時候，要拔去電源插頭。,washing machine洗衣機,Microwave微波爐,Do no

8、t turn it on when it is empty. Turn it off.Because it might start a fire.當它空著時，不要打開它（的開關(guān)），因為它可能會引起火災。,turn off 關(guān)上 switchoff (switch on, turn on打開),Microwave微波爐,Stand at least one meter away from the microwave when it is on.當它開著時，站在離微波爐至少一米遠的地方。,at least 至少 A child must sleep at least eight hours a d

9、ay. You should at least have warned her. 你至少該警告她。,Before you put an object in a microwave, make sure it is microwave safe.在你把物品放進微波爐之前，確保它適用于微波爐。,Electricity all around,Daisy said:“Im going to buy a packet of sweets. 黛西說：“我要去買包糖。,sweet adj. 甜的; 愉快的，快樂的; 溫柔的，親切的; 芳香的; n. 甜味; 糖果，甜食; 餐后的甜點心; 寶貝,當它解釋為糖果

10、的時候是可數(shù)名詞，如解釋為甜品時就是不可數(shù)名數(shù)，所以要分 情況討論。 There_alotofsweetsinthebox,alotof后面的sweets有S,是復數(shù)形式,所以要填ARE如果是candy,sugar就要用is了,因為candy,sugar都是不可數(shù)名詞,知識點：a packet of 一袋。其后可接可數(shù)名詞復數(shù)或不可數(shù)名詞用來表示數(shù)量。,不可數(shù)名詞沒有復數(shù)形式，在表示數(shù)量時，,不可數(shù)名詞的數(shù)量表示一時： 常用“a+單位量詞+of+不可數(shù)名詞”結(jié)構(gòu)。 a piece of meat; a piece of paper; a glass of apple juice; a bag

11、of milk,不可數(shù)名詞的數(shù)量表示2以上時： 數(shù)詞+單位量詞（復數(shù)）+of+不可數(shù)名詞 two glasses of water; three cups of tea,a +單位量詞+of+可數(shù)名詞復數(shù) a basket of eggs; a bag of apples,數(shù)詞+單位量詞+of+可數(shù)名詞復數(shù) two packets of sweets ; three bags of pencils,表示可數(shù)名詞時,Does anyone want anything?“還有人要帶點什么東西嗎？”,anyone做主語時，謂語動詞要用第三人稱單數(shù)，,還someone,anyone,noone,eve

12、ryone,something,nothing等復合不定代詞作主語,謂語動詞用單數(shù),Benny replied, Can you get me a packet of electricity?“本尼回答道：“你能幫我?guī)О妴幔?get=bring帶,reply回答，回應(yīng)，過去式replied,Grace was too terrified to reply.,Yes, I can,said Daisy. Then she went out. “好的?！摈煳髡f。接著她就出去了,Benny laughed, “She cant buy electricity in packets like swe

13、ets本尼大笑道：“她是不可能像買糖一樣一包包地買電的！”,laugh笑; 發(fā)笑; 嘲笑 常用laugh at sb嘲笑某人,Hes just started learning. dont laugh at him. 他剛學，別笑他,Shell look foolish.”她要出丑了?！?foolish，adj.愚蠢的；魯莽的；荒謬的，可笑的,鏈接：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!“媽媽說：“你不該那么說，本尼！”,本單元難點（情態(tài)動詞）,Must表示“必須，必要”否定mustnt表示“禁止，不準”注意， must提問否定回答使用neednt,而不能用mustnt,Wemustgotoschoolnow. 我們現(xiàn)在必須去學校。 Wemustntswimintheriver. 我們不準在河里游泳。,Imusthurry,Imustntbelate.,Theremustbesomethingwrong.一定有什么毛病了,Youmustntforge

15、ttophoneJulia,以must提問的一般疑問句,意為“必須嗎”. 肯定回答用must（必須）, 否定回答用neednt或dont/doesnt have to（不必）.如,-Must I finish the work today?我必須在今天之內(nèi)完成工作嗎?,-Yes,you must.是的,你必須. -No,you neednt.不,你不必. -No,you dont have to.不,你不必.,Will表示“將來”，常用語一般將來時；否定為“wont”,Hewillbebackintenminutes. 她十分鐘內(nèi)將回來。 Wewontplaycomputersgamesaga

16、in. 我們將不會玩電腦游戲。,He will be home at six.他六點回家。,Iwontgoouttoday;Illstayinandwork. 今天我不出去了，我留在家里工作,May表示許可或征求對方的許可,有“可以”的意思,You may go now.你可以走了.May I use your computer?我用一下你的電腦可以嗎?,Wemayhave some raintoday 今天可能會下點雨。,表示猜測,通常只用于陳述句.例如：You may be right.你可能是對的.,Shemaynotcome她未必來,回答以 may 開頭的疑問句有如下表達法：-May

17、I smoke here?我可以在這兒抽煙嗎?肯定回答-Yes,you may./ Yes,please.請抽吧.否定回答-No,you cant. -No,you mustnt. -No,youd better not.請不要抽煙.,can的用法：表示有能力做某事,意為“能、會”.如：The girl can sing in English.表示許可,意為“可以”,如：You can drive my car to the post office.表示推測,意為“也許,可能”.如：He cant be your brother,you dont look the same.,Everyone

18、 here can speak English.這兒人人會說英語,You cant use the bike.,二怎樣使用情態(tài)動詞？ 1.情態(tài)動詞無人稱和數(shù)的變化； 例： Icandoit.Hecandoit.Youcandoit. 2.不能單獨使用，必須與其后的動詞原形構(gòu)成謂語 例如：Icandoit.,運用適當?shù)那閼B(tài)動詞填空。 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.過了一會兒，黛西回來了。,a mome

20、nt later 一會兒，沒多久,A moment later, my friend came down . 過不多久，我的朋友下來了。,The waiter goes into the room with the beer a moment later. 片刻之后，服務(wù)員端著啤酒走進了雅間。,It is overcast in the sky. It must rain a moment later. 天陰沉沉的，過一會兒一定會下雨。,(1)moment 可數(shù)名詞,意為”瞬間;片刻” Id like to talk to you for a moment.,與moment相關(guān)的短語: a m

21、oment ago 剛剛;剛才 He was here a moment ago. at the moment 現(xiàn)在;此刻 He is at home at the moment. wait a moment 等一會兒 Wait a moment, please.,May I have my packet of electricity? Benny asked. “能把我的那包電給我嗎?”本尼問道。,情態(tài)動詞may,We may have some rain today 今天可能會下點雨。,Here you are! said Daisy.But. these are batteries! s

22、aid Benny.,“給你！”黛西說道。 “但.這些是電池??！”本尼說。,battery電池,The chemicals inside batteries produce electricity.電池里的化學物質(zhì)可以產(chǎn)生電。,produce，動詞，產(chǎn)生，生產(chǎn)。名詞形式為production,Mum said, Who looks foolish now,Benny?媽媽說：“現(xiàn)在誰出丑了，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