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所属成套资源：人教版九年级上册英语课件PPT
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九年级全册Section B课前预习课件ppt
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这是一份九年级全册Section B课前预习课件ppt，共28页。PPT课件主要包含了Warming Up，Free talk， invent，adv 几乎，Self Check， doubt，websites，mention，主 语，谓语动词主动式等内容，欢迎下载使用。
1. New wrd: nearly
2. Writing: Write a descriptin f a new inventin.
Learning gals
请在上节课你想做的发明作业纸上写上你的名字，并放入讲台上的纸盒里。 现在一名学生从中任意抽取一张，用 It was invented by…和 It lks like… 句型说出“这是谁的发明”和“该发明的外观像什么”。 其他同学用特殊疑问句提问关于这项发明的价值、材料、作用等。让学生评选出最有趣的发明、最实用的发明等奖项。
总结一下最实用的发明可以解决我们生活里的什么问题。
Talk abut the inventin.
OVIO Pairlck
ne key fr all
It’s a special key and lck.
It just lks like a cmmn key.
It is made f stainless steel and cpper.
It is used fr pening all the drs with ne key.If yu set the passwrd well, yu can even pen yur dr with yur neighbr’s key.
If yur friends cme t yur huse t visit yu and yu are nt at hme, yu just need t tell them yur passwrd. Then change yur passwrd after that. The mst imprtant thing is that this kind f key is much cheaper than the electric lck. Everyne can affrd it.
Think f smething that yu d nt like t d. Then think f an inventin that culd help yu. Make ntes.
Prblem: quickly taking ntes in classNew inventin: a special penWhat it is used fr:
taking ntes quickly in class
What is yur prblem?
Emm, I have t take ntes quickly in class, but I can’t fllw the teachers mst f the time.
Exchange yur chart with yur partner and discuss it.
Imagine yu are a business persn. Write a descriptin f yur new inventin. Try t sell the inventin t the class.
Try t tell us the fllwing infrmatin:
What is it made f?What is it used fr?What des it lk like?Where r when can it be used?Hw much will it cst?
This special pen was invented by Liu Jie. It has three clrs and is used fr______________________________ _____________________________________________________________________________________________________________________________________________.
Write it like this:
Sample writing:
This special pen was invented by Liu Jie. It has three clrs and is used fr taking ntes quickly. It is very useful when yu have a lt t write dwn in limited time. The pen cmes with a micrchip that can stre a list f cmmn wrds that yu will use. Yu can prgram the wrds yu will use ften int the micrchip’s memry, then assign a shrt frm t each wrd.
When yu are writing, yu just need t write the shrt frms with the pen, press a buttn n the pen and all the shrt frms will change int the actual wrds. The micrchip can stre up t 50 wrds and yu can make changes t the list f wrds whenever yu need t.
invent dubt mentin website all f a sudden
It is ften difficult t decide n the inventr f certain inventins. This is because smetimes a few peple may _________ things which are nearly the same. It’s hard t tell wh came up with the idea first. Sme inventins can
1. Cmplete the passage with the crrect frms f the wrds in the bx.
als lead t ther inventins ________________. S sme peple __________ whether the inventr came up with the idea himself r herself. They think that the inventr used smene else’s idea t create his r her inventin. That is why bks r ___________ usually _______________ mre than ne inventr when giving infrmatin abut inventins.
all f a sudden
Review the Passive vice in past simple tense
主语+was/were+及物动词的过去分词+其他.
Lu Xun wrte many shrt nvels in his life.
Many shrt nvels were written by Lu Xun in his life.
如何变一般过去时态的主动语态为被动语态
主语：把原主动句中的宾语变为被动句中的主语
谓语：把动词变为被动形式即was/were+dne
宾语：原主动语态的主语如果是代词要变成宾格形式，如不需要可以连同by一起省略。
1. Smene stle my watch. 2. They used five eggs t make this big cake. 3. When did they invent the persnal cmputer?
2. Rewrite these sentences using the passive vice.
My watch was stlen (by smene).
Five eggs were used (by them) t make this big cake.
When was the persnal cmputer invented?
4. They asked us nt t run in the hallway. 5. Smene tk the vide back t the stre.
We were asked nt t run in the hallway (by them).
The vide was taken back t the stre (by smene).
3. Find ut infrmatin abut ne inventin and write sentences belw.
Inventin:______________________________________When:_________________________________________Wh:__________________________________________Purpse:_______________________________________
1.(2020·十堰中考) —The last Beidu GEO-3 int space successfully n June 23nd, 2020. —As Chinese, we feel prud f it. A.sents B.sent C.is sent D. was sent
2.(2020·深圳中考改编) —It tk me ___tw days t make the vlg. —I can't wait t watch it. A.hardly B.prbably C. nearly3.(2020·北京中考) The kite in China mre than 2,000 years ag. A.invents B.invented C.is invented D.was invented
4. Many shps in China ______ t shut dwn as a new law against ivry trade came int effect n January 1st, 2018. A. rdered B. didn’t rder C. were rdered D. weren’t rdered
二、根据汉语意思，补全句子。
1. 人们相信他就是发明那个新型机器的人。 ______ __________ that he is the persn wh invented the new machine.2. 老师把整个班级分成了8个小组。The teacher _______ the whle class ______eight grups.
It’s believed
divided int
3. 莉莉不仅会唱歌，还会弹钢琴。 Lily can ______ ______ sing ______ ______ play the pian.4. 他发现他错把萨丽的太阳镜装进他的背包里了。 He fund that he had put Sally’s sunglasses int his backpack _____ ________.
nt nly but als
by mistake
Write a descriptin f a new inventin
1. Review the wrds in this unit.2. Write a passage:
假如你发明的“飞行单车”在学校科技节中获奖，被推荐参加一个国际青少年科技展览。请用英语介绍你的发明， 内容包括下图1-4项。
1. New wrd: nearly
2. Writing: Write a descriptin f a new inventin.
Learning gals
请在上节课你想做的发明作业纸上写上你的名字，并放入讲台上的纸盒里。 现在一名学生从中任意抽取一张，用 It was invented by…和 It lks like… 句型说出“这是谁的发明”和“该发明的外观像什么”。 其他同学用特殊疑问句提问关于这项发明的价值、材料、作用等。让学生评选出最有趣的发明、最实用的发明等奖项。
总结一下最实用的发明可以解决我们生活里的什么问题。
Talk abut the inventin.
OVIO Pairlck
ne key fr all
It’s a special key and lck.
It just lks like a cmmn key.
It is made f stainless steel and cpper.
It is used fr pening all the drs with ne key.If yu set the passwrd well, yu can even pen yur dr with yur neighbr’s key.
If yur friends cme t yur huse t visit yu and yu are nt at hme, yu just need t tell them yur passwrd. Then change yur passwrd after that. The mst imprtant thing is that this kind f key is much cheaper than the electric lck. Everyne can affrd it.
Think f smething that yu d nt like t d. Then think f an inventin that culd help yu. Make ntes.
Prblem: quickly taking ntes in classNew inventin: a special penWhat it is used fr:
taking ntes quickly in class
What is yur prblem?
Emm, I have t take ntes quickly in class, but I can’t fllw the teachers mst f the time.
Exchange yur chart with yur partner and discuss it.
Imagine yu are a business persn. Write a descriptin f yur new inventin. Try t sell the inventin t the class.
Try t tell us the fllwing infrmatin:
What is it made f?What is it used fr?What des it lk like?Where r when can it be used?Hw much will it cst?
This special pen was invented by Liu Jie. It has three clrs and is used fr______________________________ _____________________________________________________________________________________________________________________________________________.
Write it like this:
Sample writing:
This special pen was invented by Liu Jie. It has three clrs and is used fr taking ntes quickly. It is very useful when yu have a lt t write dwn in limited time. The pen cmes with a micrchip that can stre a list f cmmn wrds that yu will use. Yu can prgram the wrds yu will use ften int the micrchip’s memry, then assign a shrt frm t each wrd.
When yu are writing, yu just need t write the shrt frms with the pen, press a buttn n the pen and all the shrt frms will change int the actual wrds. The micrchip can stre up t 50 wrds and yu can make changes t the list f wrds whenever yu need t.
invent dubt mentin website all f a sudden
It is ften difficult t decide n the inventr f certain inventins. This is because smetimes a few peple may _________ things which are nearly the same. It’s hard t tell wh came up with the idea first. Sme inventins can
1. Cmplete the passage with the crrect frms f the wrds in the bx.
als lead t ther inventins ________________. S sme peple __________ whether the inventr came up with the idea himself r herself. They think that the inventr used smene else’s idea t create his r her inventin. That is why bks r ___________ usually _______________ mre than ne inventr when giving infrmatin abut inventins.
all f a sudden
Review the Passive vice in past simple tense
主语+was/were+及物动词的过去分词+其他.
Lu Xun wrte many shrt nvels in his life.
Many shrt nvels were written by Lu Xun in his life.
如何变一般过去时态的主动语态为被动语态
主语：把原主动句中的宾语变为被动句中的主语
谓语：把动词变为被动形式即was/were+dne
宾语：原主动语态的主语如果是代词要变成宾格形式，如不需要可以连同by一起省略。
1. Smene stle my watch. 2. They used five eggs t make this big cake. 3. When did they invent the persnal cmputer?
2. Rewrite these sentences using the passive vice.
My watch was stlen (by smene).
Five eggs were used (by them) t make this big cake.
When was the persnal cmputer invented?
4. They asked us nt t run in the hallway. 5. Smene tk the vide back t the stre.
We were asked nt t run in the hallway (by them).
The vide was taken back t the stre (by smene).
3. Find ut infrmatin abut ne inventin and write sentences belw.
Inventin:______________________________________When:_________________________________________Wh:__________________________________________Purpse:_______________________________________
1.(2020·十堰中考) —The last Beidu GEO-3 int space successfully n June 23nd, 2020. —As Chinese, we feel prud f it. A.sents B.sent C.is sent D. was sent
2.(2020·深圳中考改编) —It tk me ___tw days t make the vlg. —I can't wait t watch it. A.hardly B.prbably C. nearly3.(2020·北京中考) The kite in China mre than 2,000 years ag. A.invents B.invented C.is invented D.was invented
4. Many shps in China ______ t shut dwn as a new law against ivry trade came int effect n January 1st, 2018. A. rdered B. didn’t rder C. were rdered D. weren’t rdered
二、根据汉语意思，补全句子。
1. 人们相信他就是发明那个新型机器的人。 ______ __________ that he is the persn wh invented the new machine.2. 老师把整个班级分成了8个小组。The teacher _______ the whle class ______eight grups.
It’s believed
divided int
3. 莉莉不仅会唱歌，还会弹钢琴。 Lily can ______ ______ sing ______ ______ play the pian.4. 他发现他错把萨丽的太阳镜装进他的背包里了。 He fund that he had put Sally’s sunglasses int his backpack _____ ________.
nt nly but als
by mistake
Write a descriptin f a new inventin
1. Review the wrds in this unit.2. Write a passage:
假如你发明的“飞行单车”在学校科技节中获奖，被推荐参加一个国际青少年科技展览。请用英语介绍你的发明， 内容包括下图1-4项。
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