九年级英语：Unit9_When_was_it_invented_Section_B课件_新目标.ppt

Lets make up some puzzles Here is a box.You can use it to cook Here is a box.You can use it to cook many kinds of delicious food,many kinds of delicious food,such assuch as fish,fish,chicken,meat and rice.You can also chicken,meat and rice.You can also use it use it to maketo make cold dish and food cold dish and food hothot in a few in a few minutes.minutes.Lets make up some puzzles Here is another box with a beautiful Here is another box with a beautiful glass face.glass face.It looks like a TV,It looks like a TV,but it but it isnt a TV.It can isnt a TV.It can be used for workingbe used for working very fast.It can help you study or very fast.It can help you study or work.work.This little thing has got numbers from 0 This little thing has got numbers from 0 to 9.It is very small,so you can put it into to 9.It is very small,so you can put it into your pocket.your pocket.Wherever you goWherever you go,you can use,you can use it to talk to your friends and your families it to talk to your friends and your families far away.far away.Here is a big box.It can Here is a big box.It can make your make your clothes cleanclothes clean and your housework easy.and your housework easy.With its help you can have more time to With its help you can have more time to relax or to work.relax or to work.Play a guessing game Was the invented in/ago?The abacus was invented in the sixth century by Chinese people.The umbrella was invented about 4,000 years ago in Assyria,China and Egypt.The binoculars was invented in 1854 by Galileo Porro in Italy.The camera was invented in 1827 by Joseph Nicephore Niepce who took the first picture.The bicycle was invented in 1880s in England.Challenge your thinkingChallenge your thinking What would you do if you are alone on a tiny What would you do if you are alone on a tiny island?Choose five inventions you would like to island?Choose five inventions you would like to have on the island with you.Tell the group what have on the island with you.Tell the group what you chose and why.you chose and why.A:Id like to have some matches because I could light a fire to keep warm.B:Yes,but thats not going to help you leave the island.I think it would be better to have a mobile phone.What would you choose if you were on the island alone?MatchesFoodClothesTelephoneMp3MoneyTastes 1.Can you tell me five tastes?2.Which food is sour?3.Which food is sweet?4.Which food is bitter?5.Which food is salty?6.Which food is hot?Sour sweet bitter hot saltyorange yogurt apple banana tea coffeesalt pizzapepper onion crispy and saltycrispy and salty-How does it taste?-How does it taste?-It tastes-It tastessour sour-How does it taste?-How does it taste?-It tastes-It tastes sweet sweet-How does it taste?-How does it taste?-It tastes-It tastessweetsweet -How does it taste?-How does it taste?-It tastes-It tastes-What kind of food do you like?-I like food that tastes crispy salty sour sweet The history of chips1.I dont like eating chocolate.The taste is too _.2.Mom added salt but it still wasnt _ enough.3.I prefer lemons to oranges.I like the _ taste.4.She likes _ cookies.They are hard,dry and easily broken.crispysweetsaltysourcrispysweetsaltysourListening(2a,2b:Listening(2a,2b:P71)P71)1.1.The potato chips were invented by The potato chips were invented by mistake.mistake.2.They were invented in 1863.2.They were invented in 1863.3.The customer thought the potatoes 3.The customer thought the potatoes werent thin enough.werent thin enough.T TF FT T4.The customer said they werent 4.The customer said they werent salty enough.salty enough.5.George wanted to make the 5.George wanted to make the customer happy.customer happy.6.The customer was happy in the 6.The customer was happy in the end.end.T TF FF F _that potato chips were _that potato chips were invented by mistake?Chips _invented by mistake?Chips _ _by a chef called George Crum._by a chef called George Crum.They were invented in_.George They were invented in_.George Crum cooked them for a long time until Crum cooked them for a long time until they _And he sprinkled lots they _And he sprinkled lots of salt on them so they were_.of salt on them so they were_.The history of chipsThe history of chipsDid you knowDid you know were were inventedinvented18531853were crispywere crispyreally saltyreally saltyMake up a short dialogue about the history of potato chips with your partner.和你的同伴一起编排一段有关薯片和你的同伴一起编排一段有关薯片历史的对话历史的对话Go through the long passage and try to find the main ideas about the passage,Then write a passage about it for short.快速阅读该长篇文章，设法找出快速阅读该长篇文章，设法找出文章中的大意，并进行缩写。文章中的大意，并进行缩写。1.Wood can be used for_ paper.A.making B.to make C.made D.make2-Do you think the light bulbs were invented _?No,I dont thing so.A.by mistakes B.by mistake C.for mistake D.with mistakesA B 1.电拖鞋是什么时候发明的？电拖鞋是什么时候发明的？When _ the electric _ invented?2.它们是由谁发明的？它们是由谁发明的？_ were they invented _?3.妈妈加了盐，但它仍然不够咸。妈妈加了盐，但它仍然不够咸。Mom added salt but it still wasnt _ _.wereslippersWhoby salty enough The alarm clock is one of the most annoying _ （发明）.2 The scoops_(use)for having soup.=The scoops_ _(use)_ have soup.3The alarm clock is used for_ _ _ （叫醒我）The potato chips were invented by a chef._ _the potato chips _by?By _ _the potato chips _?5The telephone was invented in 1876._ _the telephone _?达标练习inventions are used are used to waking me upWho were inventedwhom were inventedWhen was invented 1.We use the _to count.1.We use the _to count.The calculator_calculatoris used for counting.The microwave oven_ 2.We use _to make the food hot.the microwave ovenis used for3.The _3.The _is used foris used for _._.(talk with people)talk with people)talking with peopletelephonemaking the food hot.4.Who_light bulbs_by?5.The computer_ 1976.wereinventedwas invented in汉译英。汉译英。（1）计算机是何时发明的？计算机是何时发明的？（2）谁发明了计算机？）谁发明了计算机？（3）计算器是用来做什么？）计算器是用来做什么？（4）你认为什么是最有用的发明？）你认为什么是最有用的发明？（5）每天它能够给人们更多时间工作和玩。）每天它能够给人们更多时间工作和玩。1.When was the computer invented?2.Who was the computer invented by?3.Whats the calculator used for?4.What do you think is the most helpful invention?5.It gives people more time to work and play every day.1.I open the door.The door is opened by me.2.He often helps homeless people.Homeless people are often helped by him.3.I handed out some papers just now.Some papers were handed out by me just now.主动语态:主语主语是动作的执行者执行者。被动语态:主语主语是动作的承受者承受者。被动语态结构为：(主动语态)(主动语态)(主动语态)(被动语态)(被动)(被动语态)be+过去分词过去分词将下列句子变为被动语态。将下列句子变为被动语态。把下列句子变成被动句把下列句子变成被动句1.Bell invented the telephone.2.Tom bought some books yesterday.The telephone was invented by Bell.Some books were bought yesterday.3.They visited the city last year.4.Mr Green often invites me to his house.5.People all over the world love football.The city was visited by them last year.I am often invited by Mr Green to his house.Football is loved by people all over the world.6、They have grown rice in South China.7.We must plant more trees next year.8.I am going to clean our classroom tomorrow.More trees must be planted next year.Our classroom is going to be cleaned tomorrow.Rice has been grown in South China.把被动句变疑问把被动句变疑问.Has rice been grown in South China？变被动语态的特殊情况变被动语态的特殊情况一、双宾语一、双宾语buy/make sb sth=buy/make sth for sbgive sb sth=give sth to sb1.My father bought me a computer.A computer was bought for me by my father.I was bought a computer by my father.2.He gives me a book.A book is given to me by him.I am given a book by himSth+be+过去分词过去分词+for/to sb+by sb.Sb+be+过去分词过去分词 sth +by sb二、无二、无toto不定式不定式一感一感 二听二听三让三让 四看四看feellisten to.hearlet.have.makewatch.see.look at.notice变为被动时加上变为被动时加上toeg.We often see him play basketball.He is often seen to play basketball by us.The boss made the children work for long.The children were made to workwere made to work for long by the boss.三、注意动词短语的三、注意动词短语的常考到的动词短语有常考到的动词短语有完整性完整性take care oflook afterlisten tospeak toeg.1.We should speak to the old politely.The old should be spoken tobe spoken to politely.2.The nurse takes good care of the baby.The baby is taken good care ofis taken good care of by the nurse.四、无被动语态的动词。四、无被动语态的动词。不及物动词及系动词不及物动词及系动词happentake placedierisecome truecome outeg.1.An accident (happen)just now.happened 2.Im sure that my dream .(come true)some day in the futurewill come true常用的被动语态短语常用的被动语态短语be made of from intobe used to do for doing as由由-制成的制成的看出原材料看出原材料看不出原材料看不出原材料原材料制成成品原材料制成成品be filled withbe covered witheg.1.Paper is made wood.from 2.Tables are made wood.3.Wood is made paper and tables.ofinto被用来-被用作被用作用-充满被-覆盖HOMEWORK