1、Unit 4 Amazing scienceTopic 1 When was it invented?Section BTeaching Aims Learn the phrases:“be invented by sb”and“be invented in+year”Talk about some inventionsGuessing game!Guess the inventions!You can just stand up and say out your answer!If you are right,you can get 1 point.Whats this?It is made
2、 of plastic.It is very small and you can put it in your pocket.It was made in America in 1973 first.It is used for communicating.You can also use it to call your friends,listen to music,play games and so on.cell phoneWhats this?It is made of metal and plastic.It was first made in America around 1975
3、.When we travel,we usually take it with us.It is used to take photos.digital cameraWhats this?It is very thin and light.It was first made in China in Han Dynasty（汉朝）（汉朝）.It is made from wood.It is used for writing on.paperWhats this?It is made of metal and glass.It was made by Thomas Edison first.Wh
4、en the room is dark,we can use it to make the room bright.light bulb/b?lb/Do you know more about light bulb?I.Listen to 1a and choose the correct answer.()1.Which object is not mentioned in the conversation?A.Light bulb.B.Airplane C.Television.D.Radio.()2.How many things did Thomas Edison invent dur
5、ing his life?A.More than 2000 B.Less than 2000 C.More than 200 D.Less than 200()3.Where are Michael and Jane?A.In the science museum.B.At the school library.C.In the zoo.D.In the park.C A A 1c Read 1a again and complete the table.Invention Inventor Year light bulb Guglielmo Marconi 1903radioairplane
6、Thomas EdisonWilbur andOrville Wright18791895Read the dialog together!Can you get the information about light bulb now?The light bulb _ _ _ by people everywhere today.It _ invented _ 1879.It was invented _ Thomas Edison._ _ _ _ he invented more than two thousand things during his life.is widely used
7、wasinbyIt is said that II.Listen to the three passages of 3 and match the pictures with the information.Invention Inventor Year A.Karl Benz a.1926 B.John Baird b.1876 C.Alexander Graham Bell c.1885 Make sentences like these:The phone was invented by Alexander Graham Bell.It was invented in 1876.be i
8、nvented by+sb 被某人所发明被某人所发明 be invented in+year 在某年被发明在某年被发明 某物品是在某物品是在过去过去某个时间被发明的，所某个时间被发明的，所以通常会用：以通常会用：was/were invented Summary Do you know anything about jeans?Jeans Jeans Inventions have changed our lives a lot.Lets go to see another invention!III.Fill in the blanks with the proper forms of th
9、e given words.The first jeans were produced in 1855.At that time,they _(not call)jeans and they were just hard-wearing pants designed for workers.The pants _(make)of the brown cloth.This kind of cloth _ usually _(use)for making tents.Nowadays,their materials have been changed so that it feels more c
10、omfortable.And many different jeans styles _ also _(create).They _(design)not only for workers but also for teenagers and women.Later jeans are popular all over the world.were not calledwere madewasusedarecreatedare designed 1.Light bulb is widely _people today.A.used by B.using by C.used of D.used
11、to2._that he has studied abroad for five years.A.It is said B.It says C.That is said D.It was said3.A big supermarket _in our city last year.A.is built B.were built C.was built D.has been built4.It is said that potato chips _by mistake about one hundred years ago.A.were invented B.invented C.are inv
12、ented5.Wechat（微信）（微信）was invented _ Tencent_ 2011.A.by,on B.in,by C.by,in C.on,by1.-Have you heard of the song Little Apple?-Yes.It _ every morning when aged people do square dancing downstairs.(2015年广东年广东)A.is played B.plays C.was played D.played 2.Although Flight MH370 has been missing for months,
13、I do believe it _ someday in the future.(2014年广年广东东)A.will find B.wont find C.will be found D.wont be found3.It _ last week that the haze(雾霾雾霾)in Beijing caused many problems.(2013年广东省年广东省)A.reports B.reported C.is reported D.was reported4.Hot water _ in the students flats from 5 pm to 7 pm now.（201
14、2年广东）年广东）A.supplies B.is supplied C.supplied D.was supplied5.People who drink wine _ to drive after May Day.（2011年广东）年广东）A.dont allow B.isnt allowed C.mustnt allow D.mustnt be allowed6.The 16th Asian Games_ in Guangzhou in November,2010.（2010年广东）年广东）A.holds B.will hold C.was held D.will be held 7.He
15、 is very surprised that all the houses in the village _ white.(2014年广州年广州)Apaint Bpainted Care painting Dare painted8.I cant understand what the book is about because it _ in English.(2013年梅州年梅州)Awrites Bwill write Cwill be written Dis written 9.An expert team _ to study H7N9 bird flu virus in April
16、,2013.(2013年佛山年佛山)A.is set up B.was set up C.has set up10.The child without parents _ good care of by his teachers in this special school.(2013年梅州年梅州)A.is taken B.are taken C.take D.takes Talk and write Talk about an introduction of an invention.You can use the information of the review homework.（ab
17、out 50 words）Tips:be invented by/in be used for/to WeChat iphoneTaobaolaptop LETS1.每个小组抽取一种发明进行描述，共有四每个小组抽取一种发明进行描述，共有四种发明，有两个小组会抽到同一种发明。种发明，有两个小组会抽到同一种发明。2.小组讨论之后，抽到相同发明物的小组进小组讨论之后，抽到相同发明物的小组进行行PK，用，用50个字来描述抽到的发明物，较个字来描述抽到的发明物，较好的一组得好的一组得10分，另外一组得分，另外一组得5分。分。Tips:be invented by/in be used for/to Homework 1.Finish the guiding paper.2.Preview section C
