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2021学年Topic 1 When was it invented?教学课件ppt
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这是一份2021学年Topic 1 When was it invented?教学课件ppt，文件包含107Unit4Topic1SectionD课件pptx、p87mp3等2份课件配套教学资源，其中PPT共24页， 欢迎下载使用。
Where were we?
We can use the cmpass t find ut where we are.
The stars in the sky were gd guiding marks. We can als use the stars t find ut where we are.
What can yu d if yu lse yur cellphne?
Let’s use the GPS.
What is a GPS?
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.
Is the GPS useful t us?
Yes, it is.
explrer /iklplra(r)/ n.探险者，勘探者 mark /ma：(r)k/ n.标示;记号，符号 v.做记号，做标记system /'sistam/ n.体系，方法，制度 man-made adj.人造的;非天然的
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? …
Task 1. Read the passage and discuss the questins n Page88.
Task 2. Key Phrases
1.探索我们的世界 2、天空中的星星 3.早期的探险者 4.找到，弄明白 5.在哪个方向 6.奏效；可行 7.只要 8.在其余时间里 9.在任何时间 10.在任何地点11.在任何天气下 12.地球的形状
explre ur wrld
the stars in the sky
the early explrers
in which directin
as lng as
the rest f the time
at any time
in any place
in any weather
the shape f the earth
Task 3.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.
Task 4. Find ut the sentences with passive vice(被动语态）
1.The stars culd be seen. 2.It can be used t study the shape f the earth.
情态动词的被动语态构成：情态动词+be+动词的过去分词
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.
一般过去时的被动语态 was /were +dne
It’s said that
★wish后的从句可用_______语气：表示美好愿望，不一定能实现。
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.
1. Use the passive vice f the simple past tense mre abut new technlgy GPS. 3. Develpe ur imaginatin and creativity by designing ur wn inventins.
( ) 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.
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.
Where were we?
We can use the cmpass t find ut where we are.
The stars in the sky were gd guiding marks. We can als use the stars t find ut where we are.
What can yu d if yu lse yur cellphne?
Let’s use the GPS.
What is a GPS?
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.
Is the GPS useful t us?
Yes, it is.
explrer /iklplra(r)/ n.探险者，勘探者 mark /ma：(r)k/ n.标示;记号，符号 v.做记号，做标记system /'sistam/ n.体系，方法，制度 man-made adj.人造的;非天然的
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? …
Task 1. Read the passage and discuss the questins n Page88.
Task 2. Key Phrases
1.探索我们的世界 2、天空中的星星 3.早期的探险者 4.找到，弄明白 5.在哪个方向 6.奏效；可行 7.只要 8.在其余时间里 9.在任何时间 10.在任何地点11.在任何天气下 12.地球的形状
explre ur wrld
the stars in the sky
the early explrers
in which directin
as lng as
the rest f the time
at any time
in any place
in any weather
the shape f the earth
Task 3.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.
Task 4. Find ut the sentences with passive vice(被动语态）
1.The stars culd be seen. 2.It can be used t study the shape f the earth.
情态动词的被动语态构成：情态动词+be+动词的过去分词
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.
一般过去时的被动语态 was /were +dne
It’s said that
★wish后的从句可用_______语气：表示美好愿望，不一定能实现。
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.
1. Use the passive vice f the simple past tense mre abut new technlgy GPS. 3. Develpe ur imaginatin and creativity by designing ur wn inventins.
( ) 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.
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.
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