《unit　3　electricity课件》初中英语牛津上海版八年级下册5046.ppt

Electricity,Reading AA servant of mankind,Can we see electricity?,We can change it into different forms of energy.,heat,light,movement,sound,From where can we get electricity?,water,wind,From where can we get electricity?,heat,From where can we get electricity?,solar energy,From where can we get electricity?,nuclear energy,From where can we get electricity?,from all kinds of power stations,think about,How does electricity get to houses?,1_,2_,3_,4_,5_,flow,power station,street,cable,wire,light bulb,How does electricity get to Bennys flat?,How does electricity get to Bennys flat?,First, _are connected to_Second, _under the street are connected to _. Third , _ in Bennys flat are connected to _At last, we can see the light in a light bulb.,a power station.,the cables,the cables,the wires,the wires,a light bulb,1. Do you think it is easy to provide electricity for us?2. What should we do to electricity?,Save Electricity,Post reading,Do you know how electricity comes into your home? Read the following sentences and choose the correct picture for each of them. ( ) 1. Power stations produce electricity. ( ) 2. Power lines carry the electricity from the power stations in through the switchboard(配电盘) to your home. ( ) 3. Electrical wires inside your home take the electricity to where it is needed.( ) 4. The flow of electricity in your home is controlled by switches(开关).( ) 5. When you press a switch such as a power point or light switch, the electricity begins to flow and makes the electrical machine work.,（五）阅读理解。 Do you know how electricity comes into your home? Read the following sentences and choose the correct picture for each of them. ( ) 1. Power stations produce electricity. ( ) 2. Power lines carry the electricity from the power stations in through the switchboard(配电盘) to your home. ( ) 3. Electrical wires inside your home take the electricity to where it is needed.( ) 4. The flow of electricity in your home is controlled by switches(开关).( ) 5. When you press a switch such as a power point or light switch, the electricity begins to flow and makes the electrical machine work.,C,B,E,A,D,Read the first and the last paragraphs of the story and answer these questions.,1 What is the girl going to buy?2 Who is looking foolish?3 Who or what is the servant in the title?,She is going to buy some sweets.,Benny is looking foolish.,Electricity.,1st-reading,Read paragraph 1-3 carefully, and answer the following questions.,1. What did Benny want to buy?,He wanted to buy a packet of electricity.,2. Why did Benny laugh?,He thought he fooled Daisy.,3. Did Benny think Daisy could buy a packet of electricity?,No, he didnt.,4. What did Benny think of Daisy?,He thought Daisy was foolish.,fool v. foolish a. stupidlook foolish,1.( ) At first Benny thought his trick had been successful.2.( ) Daisy couldnt buy packets of electricity when she came back.3.( ) The chemicals inside the batteries produce electricity. 4.( ) Daisy looked foolish at last.,T,F,T,Read paragraph 10-14.,Tell if the following statements are true or false:,Who looked foolish at last?,F,a battery batteries,Answer these questions with Yes or No. Give evidence from the story to support your answers.,Did Benny often try to fool Daisy?_. He said,“_.”Can we see electricity?_. Bennys dad said,“ _.”Did Benny fool Daisy successfully?_. Bennys mum said,“ _?”,Yes,I was finally able to fool Daisy,No,We cant see electricity,No,Whos looking foolish now, Benny?”,2nd reading,GROUP WORK,How can we save electricity at school?e.g. We must turn off the lights when we leave the classroom.,How can we save the electricity at school?,We must turn off all the lights when we leave the classroom.We must turn off the lights when it is sunny.We must turn off the fans when we leave the classroom.We must turn off the air-conditioners when it is not too hot.We must switch off the class computer after using it.,Electricity is very u_ in our daily life. It helps m_ our lives easier, like a s_. It is made in a p_ station , coming into our f_ through thin w_ , and these wires are c_ to c _under the street. We cant see it , but we can c_ it into different f_ of energy. Then we can see , hear or feel it . A lot of things use electricity at our homes. Electricity doesnt come easily! Lets take action to s_ electricity in our daily life!,Lets do it without books!,seful,ake,ervant,ower,lats,ires,onnected,ables,hange,orms,ave,Useful phrases,a packet of be able toin a way shake ones headchange intobe connected to,一袋能够做在某种程度上摇头5.把转化成6.由连接,The little boy _and said no._he is right.Do you know how to _ electricity _another form?My mother asked me to buy _sugar.The wires _the power station.6. She is good at math. She _do the problem.,Fill in the blanks.,shook his head,In a way,change,into,a packet of,are connected to,is able to, finally = at last, in the end,Language points, fool: (n. v.) make sb. be a fool,I was finally able to fool Daisy.= I was able to trick Daisy at last.,= play a trick on,= play jokes on, in packets：“in + 单位量词s” 表示“以包装的“，”呈形状的“Rice in supermarket are always sold in bags.The glass is in pieces. a packet of: “单位量词 + of”不可数名词没有复数形式，若要表示(复)数的概念，则必须在前面加上“单位量词 + of”表示，如：a bar of chocolate, two bottles of wine, three pieces of paper, 当然，“单位量词 + of”后面也可接可数名词，如：a box of apples, look + adj. VS. look like + n.What _ electricity look like?It _ a real dog, but it cant bark.The Arc de Triomphe _ wonderful., like(v. ) “喜欢” = be fond of(prep.) “像” 有时还可解作“例如” She likes her sister. She is like her sister,does,looks like,looks,请在课文中找出like的例句_,L7/L13,L15, in a way “从某种程度上讲，部分地” (partly)I agree with him in a way.in some ways “就某些方面而言” in the way “造成不便或阻碍”in this way “这样”by the way “顺便提及“, shake ones head nod ones head,Luc