初中Topic 1 When was it invented?课文ppt课件

这是一份初中Topic 1 When was it invented?课文ppt课件，共19页。PPT课件主要包含了Key words，Exercises，Summary等内容，欢迎下载使用。
What’s it used fr?It’s used fr listening t music.What’s it made f?It’s made f plastic.Where was it invented?It was invented in Krea.When was it invented?It was invented in 1998.
What’s it used fr?It’s used fr cmmunicating easily.What’s it made f?It’s made f plastic and metal.Where was it invented?It was invented in America.When was it invented?It was invented in 1973.
What methd did yu use t find yur lst cellphne?
GPS is like a man-made star. We can use it at any time, in any place and in any weather t find ut ur psitin. The early explrers used the stars as landmarks t knw where they were and in which directin they were ging. This methd wrked well at night as lng as the weather was gd. But it didn’t wrk s well during the rest f the time.
Let’s use the GPS.
n.探险者， 勘探者
1. Hw did the early explrers knw where they were? They fund ut where they were by using stars. 2. What’s the disadvantage f using the stars as guiding marks? Its disadvantage is that it didn’t wrk well when the weather was bad and the stars culd nt be seen. 3. What is a GPS? Is it useful t use? It is like a man-made star. We can use it at any time, in any place and in any weather t find ut ur psitin. It is very useful. 4. What d yu think the GPS will be used fr in the future? …
Read the passage and discuss the questins n Page88.
根据首字母提示，完成短文。 Thanks t GPS, we can exactly knw w _____we are nw. GPS is like a man-made “star”. It can be u____ in any place and any weather cnditin t find ut ur p________. In the past, the early explrers had t use stars in the s____ t tell them where they were, hwever, this methd didn’t wrk well when the weather was bad. S GPS is a great inventin that can help humans t better e________ ur planets.
explreexplrer, mark find ut, in…directin wrk well, as lng asthe rest f the timeslve, like, use, the shape f great inventin
n.标示，记号，符号 v.做记号，做标记
Retell it !
Passive Vice (Ⅱ)
The radi was invented by Guglielm Marcni in 1895.
When was the digital camera develped ?Where was it develped?What is a rcket used fr?
It was develped in the 1970s. It was develped in Japan.It is used fr sending satellites r spaceships int space.
Passive vice was /were +dne( ) 1. A big supermarket _____in ur city last year. A. is built B. were built C. was built ( ) 2.Culd yu tell me wh the radi ____ by? A. invents B. invented C. was invented( ) 3. Many trees and flwers _____ in ur schl last year. They made ur schl mre beautiful. A. have planted B. were planted C. planted( ) 4.The children ____ swim last mnth and they can swim very well nw. A. are taught B. were taught C. were taught t( ) 5.It is said that ptat chips _____by mistake abut ne hundred years ag. A. were invented B. invented C. are invented
Grammar exercise
1.Yu are late, all the tickets __________(sell) ut an hur type f cellphne ____________(make )in Shenzhen.3. I _________________ ( nt invite) t yesterday’s party. 4. ________ thse machines __________(check) this mrning?5. Many trees and flwers ______________(plant) in ur schl last year, and they made ur schl a beautiful garden.
were/was　+　v.的过去分词
wasn’t invited
were planted
1.Peple use radis t learn English in the will shw me the have raised much mney fr the Prject Hpe.______________________________________________4.I ften hear Mary sing English sngs at mustn’t thrw litter can visit planets like Mars._________________________________________________
Radis were used t learn English in the past.
The pht will be shwn t me.
Much mney has been raised fr the Prject Hpe.
Mary is ften heard t sing English sngs at hme.
Litter mustn’t be thrwn abut.
Planets like Mars can be visited.
Change the fllwing sentences int Passive Vice.
( ) 1.Hurry up, yu ____ n the phne. A. WantedB. was wanted C. are wanted( ) 2. Sme stries _____the children by the teacher everyday. A. is tld frB. are tld fr C. are tld t( ) 3._____that he has studied abrad fr five years. A. It is saidB. It says C. That is said ( ) 4.The windw ____ five minutes ag. A. is cleaned B. was cleaned C. can be cleaned( ) 5.The children ______by the teachers at schl. A. take care f B. are taken care C. are taken care f
Chse the best answer.
( ) 6. I have n idea what ______while I was asleep. A. happened B. was happened C. happens( ) 7. In sme cuntries, tea _____befre meals. A. is servingB. is servedC. served( ) 8. This kind f bks ______well. A. desn’t sellB. isn’t sellingC. aren’t sld.( ) 9. I ______ten minutes t decide which sentence was right by the teacher. A. gaveB. was givenC. was giving ( ) 10. Teachers ______in every part f the wrld. A. are needingB. are neededC. will need
Practice makes perfect.
Prject (1)
This is Kangkang’s inventin. Lk at the infrmatin and the picture.What d yu think f it ? Discuss with yur partners.
2. Design yur wn inventin. Draw a picture f it and write dwn the infrmatin abut it.
Prject （2） Describing Yur Inventin
3. Shw the picture f yur inventin and describe it t the class. 4. Discuss in grups t decide which is the mst useful /interesting/funny inventin.
We Learn: 1. Sme wrds : mark, explrer 2. Sme phrases: find ut, in …, directin, as lng as, wrk well, the rest f the time, be used t, the shape f 3. Sme sentences: This methd wrked well at night as lng as the weather was gd and the stars culd be seen.We can: 1. Use the passive vice f the simple past tense mre prperly. 2.Talk abut new technlgy GPS. 3. Develpe ur imaginatin and creativity by designing ur wn inventins.
Read 1a.Memrize the useful expressins and key sentences that we learn in this tpic.Finish Sectin D in yur wrkbk.Preview Sectin A f Tpic 2.