仁爱科普版（2024）九年级上册Topic 1 When was it invented?评优课ppt课件

这是一份仁爱科普版（2024）九年级上册Topic 1 When was it invented?评优课ppt课件，文件包含G9U4T1SD-课件pptx、G9U4T1SD-教案doc、G9U4T1SD-练习doc、G9U4T1SD-1mp3等4份课件配套教学资源，其中PPT共24页， 欢迎下载使用。

Learning aims and demands
1. Learn the simple past passive vice. （学习一般过去式的被动语态）2. Talk abut new technlgies and inventins.（谈论新科技和发明）3. Get t knw smething abut GPS. （了解关于GPS）4. Fster students’ psitive attitude twards science.（培养学生对科学的积极态度）
A: What’s it made f?B: It’s made f metal.A: D yu knw what it is used fr?B: It’s used fr sending satellites r spaceships int space.
Ww !A mdel rcket !
Talk abut mre things.
cmputer desk/wd
sweater /cttn
watch/metal
Language Pints
be made f 由……制成(看得出原材料，物理过程)be made frm 由……制成(看不出原材料，化学过程)be made in 在某地/某时制造be made by 由某人制造be made int 被制成
be used fr ding sth. 被用来做某事
Talk abut mre things
mbile phne1973Americacmmunicate easily
digital camera1975Americatake phts
MP3 player1998Krealisten t music
Language pints
Useful inventins make ur lives much easier and mre clrful!
A: What’s this?B: It’s a light bulb.A: When was it invented?B: It was invented in 1879.A: Wh invented it?B: It was invented by Thmas Edisn.
1926/Jhn Baird
1895/Guglielm Marcni
1885/Karl Benz
1.D yu knw what an inventin is ?2.Hw d they cme abut?3.D yu want t be an inventr and hw can yu ?
There are a few simple steps t fllw in the inventin prcess. Put them in the right rder.
（ ）Test yur inventin. See if yur inventin wrks as it is planned.（ ）Use yur imaginatin. Yu can have wild and crazy thughts.（ ）Plan and design yur inventin.Careful planning is imprtant in the inventin prcess.（ ）Make a mdel f yur inventin.（ ）Share yur inventin with thers. （ ）Name yur inventin . Every inventin needs a name.（ ）Draw yur inventin. Make a detailed drawing f yur inventin s thers will understand hw yur inventin wrks .
If yu lse yur cellphne, hw can yu find it?
We can use the GPS.
Listen and Fill
Where are we Where are we? That was a big questin when we first ur wrld lng ag.The early explrers fund that the stars in the sky were gd guiding . Using the stars ,they culd find ut where they were and in which they were ging . This methd well at night as lng as the weather was gd and the stars culd be . But it didn’t wrk s well during the rest f the time.That was a prblem. Tday , the prblem has been by the Glbal Psitining System﹝GPS﹞.It is like a man-made star. We can use it at time, in any place and in any weather t find ut ur . It can als be used t the shape f the earth .The GPS is a great inventin that helps us explre ur planet and where we are.
Read and Answer the fllwing questins
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? …
Key phrases
1.查明；找出 2.奏效，起作用3.其它/于时间 4.人造的 5.在任何时候6.只要7.可以被使用
The rest f the time
at any time
can be used
Describe an inventin
Name : KamiInventr: YuYear: 2014Use: Ding many things
Pay attentin t these sentences:I was nt allwed t play cmputer games last night.It was made by me.The radi was invented by Guglielm Marcni in 1895.It was develped in Japan.The first jeans were prduced in 1855.
一般过去式的被动语态：was /were +be.P.P(动词过去分词）
We Learn: 1. Sme wrds : mark, explrer 2. Sme phrases: find ut, 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.
根据首字母提示，完成短文。 Thanks t GPS, we can 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.
( ) 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
( ) 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
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.
wasn’t invited
were planted
Finish Sectin D in the wrkbk.Review Tpic 1 and prepare fr the test.Try t make yur passage abut yur inventin better.