九上U4T2SB.ppt

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1、Topic 2 When was it invented?Great inventions make our life colorful! Please choose one to talk about.English Learning Machine/Around 2005/learn Englishdigital camera/1975/America/take photos MP3 player/1998/Korea/listen to music mobile phone/1973/America/communicate easilyLook, a light bulb!When wa

2、s it invented?Who was the inventor?Listen and answer the questions.In 1987, By Thomas Edison（录音）（录音）Read 1a and fill out the table.InventionInventorYearLight bulb Guglielmo Marconi 1903RadioAirplaneThomas EdisonWilbur andOrville Wright18791895 重点词（组）和句型重点词（组）和句型1.in our daily life in our everyday li

3、fe 2.invent v. inventor n. invention n. The inventors invented many great inventions.3.Its said/reported that-clause.4.during ones life in ones life Inventor YearA. Karl Benz a.1926B. John Baird b.1876C. Alexander Graham Bell c.1885Listen to the tape, choose the correct answers and fill in the blank

4、s.ACBcba（录音录音）Know something about science.Cloning- a famous experiment the cloned sheep- was created in Scotland a few years ago.the cloned micethe cloned cowsthe cloned pigsthe cloned animalsListen and answer the questions.1.Whats the name of the cloned sheep? Dolly.2.What animals have the scienti

5、sts cloned now? Sheep, rabbits, cows, mice, pigs and some other animals.3.What is used in cloning? DNA.4.Is your DNA similar to your parents? Yes, it is.5.What does the writer want to clone? What do you want to clone ?Why? （录音）（录音）3bGroup workRead 3a again and discuss the following questions.1. Who

6、is Dolly and what is used in cloning?2. What are the advantages and disadvantages of cloning?( )1.The cloned sheep, Dolly,was cloned in Canada.( )2.Scientists have cloned pigs.( )3.Every part of our body has different DNA.( )4.There is DNA in all living things.Read 3a and mark the statements True (T

7、) or False (F).TTFF当堂检测 一一、词组互译、词组互译1.科技博物馆_ 6.It is said that _2.在日常生活中_ 7.the same as_3.与不同 _ 8.be similar to_4.迄今为止 _ 9.during ones life_5.从中克隆的 _ 10.be made into_二、选择合适短语填空，并注意其适当形式。二、选择合适短语填空，并注意其适当形式。be different from, take photos,be similar to, so far, the sameas1.The weather in the USA_ that

8、 in Australia.2.The student has made _ mistakes _ he did last time.3.Digital camera is used for _. 4. _, more and more teenagers in America have showed great interest in learning Chinese.5.Group Threes opinions _ ours.are similar to the sameastaking photosis different fromSo far三、用所给词的适当三、用所给词的适当形式填

9、空。形式填空。1.It was used in our _ study.( day )2.The airplane is different from _ .(today )3.I think the film was _ by Zhang Yimou in 1998. (direct)4.Edison, an American _, created many things. (invent)5.So far, they have _ many animals. (clone)6.Shenzhou _ (launch) in 2005.dailytodaysinventorcloneddire

10、ctedwas launched四、根四、根据句意及首字母提示据句意及首字母提示写出单词。写出单词。1.Guglielmo Marconi is the i _ of the radio.2.This kind of machine is w_ used for harvesting in the countryside.3.Nowadays more and more people use mobile phones to c_ with each other.4.Shakespeare c_ many famous characters, such as Hamlet, Romeo, Juliet and so on.5.The government is trying out a new e_ in city planning.6.Your views on education are s_ to mine.nventorommunicate reatedxperimentimilaridely（歌曲）（歌曲）