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英语八年级上册Grammar授课课件ppt
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这是一份英语八年级上册Grammar授课课件ppt，共33页。
Learning aims:1. T use imperative sentences t give instructins in crrect cntext.2. T use shuld/had better t give advice in crrect cntext.
Lk at my instructins!
* Instructin 1: Stand up! * Instructin 2: Turn right!* Instructin 3: Dn’t be afraid!* Instructin 4: Turn ff the lights!* Instructin 5: Dn’t mve！* Instructin 6: Write the wrd “instructin” n the blackbard!
Can yu grup my instructins int tw parts?
*Stand up!
*Turn left!
*Turn ff the lights!
*Dn’t be afraid!
*Write the wrd “instructin” n the blackbard !
What can we use such sentences t d?
Stand up! Turn left!Dn’t be afraid!Turn ff the lights!Dn’t mve！Write the wrd “instructin” n the blackbard!
Tell peple what t d r tell peple nt t d smething
Giving instructins
Draw a cnclusin:
1.祈使句的概念祈使句( Imperative Sentence）表命令、请求、劝告、警告、禁止等。作用为：要求、请求或命令、劝告、叮嘱、建议别人做或不做一件事。祈使句因对象（即主语）是第二人称（yu），通常主语被省略。句末则使用感叹号或句号,读降调。
2.祈使句结构:肯定形式：动词原形开头. 否定形式：Dn’t /D nt +动词原形.
表示请求、劝告的祈使句还常常在句首或句末加上please, 构成句式： Please … …, please. 以使语气更加缓和或客气。
Please have a rest. Have a rest, please.
D yu knw hw t make cards?
_______ ut pieces f card with a pair f scissrs._______ sme wrds r a sentence n each card._______ a picture abut the wrds r sentence n the ther side f the card._______ at the picture and ______ t say what is n the ther side.Please __________ (nt give) up. _______ trying and yu will find yu can remember things better.
What instructins can we see in public places?
Instructins at schl
Please _______________.
Please be __________ thers.
Please dn’t _______ fd.
Please dn’t ______ the rad when the light is _____.
clse the dr
Dn’t ___________ schl again.
Instructins abut traffic
Instructins in public places
2.Let型祈使句 Let me try. 让我试试看。 Let’s lk at the map. 让我们看看地图。● let’s是let us的缩写。Let’s型祈使句，其否定式也可用Let’s nt … Let’s nt have rest. 咱们别休息了。 Let’s nt sit here! 我们不要坐在这儿！
注意：1.有些用N开头用来表示禁止性的祈使句 如： N smking!禁止吸烟 N phts!禁止拍照
祈使句,无主语,只用动词原形就可以。表示请求或命令,加上please表客气。如果变成否定句， Dn’t开头是规律。
imperative sentence
What can we use t give advice plitely?
What can yu say t yur parents r teachers when yu want t give them sme advice?
shuld & had better
Tell peple what we think is the best r right thing t d
Giving advice
The tne is strnger
当我们给他人提建议时，可以用had better（’d better）和shuld，表示“最好”或“应该”做某事， had better的语气比shuld强一些。
注意：had better和shuld在使用时没有人称和数的变化， 后面都加动词原形。
had better 的否定式是直接在后面加nt。
shuld 的否定式是shuld nt/shuldn’t。
The structures f shuld/had better:肯定形式：shuld + d sth. 否定形式：shuld nt +d sth. 肯定形式：had better +d sth.否定形式：had better nt +d sth.
Cmplete the fllwing sentences
Yu shuld drink a lt f…
Yu had better stay at…
Yu shuld have a …
Yu had better nt g t …
Yu had better nt eat …
Yu shuld ften brush …
Yu shuld take sme …
Yu had better nt eat r drink …
Grup wrk: D yu knw hw t give DIY advice t thers?
There are many useful bks abut DIY. DIY is nt easy. Instructins are imprtant. Scissrs can be dangerus. Smetimes it’ll take time t d a DIY jb.
Yu shuld/had better buy sme t learn mre abut it.
Yu shuld/had better jin a DIY club t learn mre abut it.
Yu shuld nt/had better nt begin yur wrk withut reading them.
Yu shuld nt/had better nt play with them when yu d DIY jbs.
Yu shuld/had better be patient.
Hw t be a gd student
Yu _____________________ be late fr schl.Yu _______________ listen carefully in class.
shuld (nt); had better (nt)
shuldn’t/ had better nt
shuld/had better
Discuss and fill in the blanks.
shuld/ had better
Yu _________ lk ut f the windw in class.Yu _______________ keep yur classrm clean.Yu _________________ be friendly t thers.
Let’s d sme exercises!
___________ (nt be) late fr schl again.It’s cld tday. Yu had better ___________ (nt wear) a dress.We shuld ________ (d) ur best t learn English well.It’s raining. Let’s ______________ (nt g) t the playgrund.Yu must let yur sn _________ (d) his hmewrk by himself.
( )1. —Jim, _____ read bks while yu are walking in the street. It’s very dangerus. — OK, thank yu. A. dn’t B. desn’t C. wn’t D. can’t( )2. —______ up, Anna. It’s seven thirty. —One mre minute, Mum. A. Get B. Gets C. Getting D. Gt ( )3. D yu want t be healthy? __________. Smiling can help yu stay healthy. A. Smile B. Smiling C. T smile D. Smiled( )4. ‘______ exercise every day, my sn. It’s gd fr yur health.’ Dad ften said t him. A. Takes B. Taking C. Take D. T take ( )5. Let's g t the island, _________ ? A. wn't yu B. will yu C. shall we D. will we
Useful Expressins
1. 剪出……2. 发出指令3. 在每张卡上4. 在卡的另一面5. 尝试做某事6. 记住某事7. 放弃它、它们8. 放弃某事/做某事9. 坚持尝试10. 把事情记得更好11.以……开始……
cut ut… give instructins n each side n the ther side f the card try t d sth. remember sth. give it /them up give up sth. / ding sth. keep trying remember things better start/begin…with…
1. The TV is t lud. Please _______. A. turn it dwn B. t turn it dwn C. turn dwn it D. t turn dwn it 2. _______ late again, Bill! A. Dn't t be B. Dn't be C. Nt be D. Be nt
3. _______ crss the rad until the traffic lights turn green. A. Nt B. Wn't C. Desn't D. Dn't 4. _______ me the truth, r I'll be angry. A. Telling B. T tell C. Tld D. Tell
1. Will yu please read it again mre slwly? (改为祈使句) _______ again mre slwly, please. 2. If yu dn't listen t me, I'll g. (改为同义句) ________ me, r I'll g. 3. The teachers ften tell the students nt t be careless. (改为祈使句) ________ careless, please. 4. Please sit next t Nancy. (改为否定句) ________ next t Nancy.
1. 你应该在南京换火车。 __________ change trains at Nanjing.2. 你最好在下雨前回家。 ___________________ befre the rain starts. 3. 现在你最好别打棒球了。 _____________________ baseball nw.4. 不要把金鱼放在阳光下。 _________ the gldfish in the sun.
Yu'd better g hme
Yu had better nt play
1. 当我们向他人发出命令、提出要求或建议时，常使用祈使句。其主语通常省略。其否定形式是在动词原形前加d nt/dn’t。为了表示客气和礼貌，可以加上please。2. 当我们给他人提建议时，可以用had better和shuld，表示“最好”或“应该”做某事。否定形式是had better nt和shuld nt/shuldn’t。
Have a revisin f Grammar. Finish ff Perid Fur.
Learning aims:1. T use imperative sentences t give instructins in crrect cntext.2. T use shuld/had better t give advice in crrect cntext.
Lk at my instructins!
* Instructin 1: Stand up! * Instructin 2: Turn right!* Instructin 3: Dn’t be afraid!* Instructin 4: Turn ff the lights!* Instructin 5: Dn’t mve！* Instructin 6: Write the wrd “instructin” n the blackbard!
Can yu grup my instructins int tw parts?
*Stand up!
*Turn left!
*Turn ff the lights!
*Dn’t be afraid!
*Write the wrd “instructin” n the blackbard !
What can we use such sentences t d?
Stand up! Turn left!Dn’t be afraid!Turn ff the lights!Dn’t mve！Write the wrd “instructin” n the blackbard!
Tell peple what t d r tell peple nt t d smething
Giving instructins
Draw a cnclusin:
1.祈使句的概念祈使句( Imperative Sentence）表命令、请求、劝告、警告、禁止等。作用为：要求、请求或命令、劝告、叮嘱、建议别人做或不做一件事。祈使句因对象（即主语）是第二人称（yu），通常主语被省略。句末则使用感叹号或句号,读降调。
2.祈使句结构:肯定形式：动词原形开头. 否定形式：Dn’t /D nt +动词原形.
表示请求、劝告的祈使句还常常在句首或句末加上please, 构成句式： Please … …, please. 以使语气更加缓和或客气。
Please have a rest. Have a rest, please.
D yu knw hw t make cards?
_______ ut pieces f card with a pair f scissrs._______ sme wrds r a sentence n each card._______ a picture abut the wrds r sentence n the ther side f the card._______ at the picture and ______ t say what is n the ther side.Please __________ (nt give) up. _______ trying and yu will find yu can remember things better.
What instructins can we see in public places?
Instructins at schl
Please _______________.
Please be __________ thers.
Please dn’t _______ fd.
Please dn’t ______ the rad when the light is _____.
clse the dr
Dn’t ___________ schl again.
Instructins abut traffic
Instructins in public places
2.Let型祈使句 Let me try. 让我试试看。 Let’s lk at the map. 让我们看看地图。● let’s是let us的缩写。Let’s型祈使句，其否定式也可用Let’s nt … Let’s nt have rest. 咱们别休息了。 Let’s nt sit here! 我们不要坐在这儿！
注意：1.有些用N开头用来表示禁止性的祈使句 如： N smking!禁止吸烟 N phts!禁止拍照
祈使句,无主语,只用动词原形就可以。表示请求或命令,加上please表客气。如果变成否定句， Dn’t开头是规律。
imperative sentence
What can we use t give advice plitely?
What can yu say t yur parents r teachers when yu want t give them sme advice?
shuld & had better
Tell peple what we think is the best r right thing t d
Giving advice
The tne is strnger
当我们给他人提建议时，可以用had better（’d better）和shuld，表示“最好”或“应该”做某事， had better的语气比shuld强一些。
注意：had better和shuld在使用时没有人称和数的变化， 后面都加动词原形。
had better 的否定式是直接在后面加nt。
shuld 的否定式是shuld nt/shuldn’t。
The structures f shuld/had better:肯定形式：shuld + d sth. 否定形式：shuld nt +d sth. 肯定形式：had better +d sth.否定形式：had better nt +d sth.
Cmplete the fllwing sentences
Yu shuld drink a lt f…
Yu had better stay at…
Yu shuld have a …
Yu had better nt g t …
Yu had better nt eat …
Yu shuld ften brush …
Yu shuld take sme …
Yu had better nt eat r drink …
Grup wrk: D yu knw hw t give DIY advice t thers?
There are many useful bks abut DIY. DIY is nt easy. Instructins are imprtant. Scissrs can be dangerus. Smetimes it’ll take time t d a DIY jb.
Yu shuld/had better buy sme t learn mre abut it.
Yu shuld/had better jin a DIY club t learn mre abut it.
Yu shuld nt/had better nt begin yur wrk withut reading them.
Yu shuld nt/had better nt play with them when yu d DIY jbs.
Yu shuld/had better be patient.
Hw t be a gd student
Yu _____________________ be late fr schl.Yu _______________ listen carefully in class.
shuld (nt); had better (nt)
shuldn’t/ had better nt
shuld/had better
Discuss and fill in the blanks.
shuld/ had better
Yu _________ lk ut f the windw in class.Yu _______________ keep yur classrm clean.Yu _________________ be friendly t thers.
Let’s d sme exercises!
___________ (nt be) late fr schl again.It’s cld tday. Yu had better ___________ (nt wear) a dress.We shuld ________ (d) ur best t learn English well.It’s raining. Let’s ______________ (nt g) t the playgrund.Yu must let yur sn _________ (d) his hmewrk by himself.
( )1. —Jim, _____ read bks while yu are walking in the street. It’s very dangerus. — OK, thank yu. A. dn’t B. desn’t C. wn’t D. can’t( )2. —______ up, Anna. It’s seven thirty. —One mre minute, Mum. A. Get B. Gets C. Getting D. Gt ( )3. D yu want t be healthy? __________. Smiling can help yu stay healthy. A. Smile B. Smiling C. T smile D. Smiled( )4. ‘______ exercise every day, my sn. It’s gd fr yur health.’ Dad ften said t him. A. Takes B. Taking C. Take D. T take ( )5. Let's g t the island, _________ ? A. wn't yu B. will yu C. shall we D. will we
Useful Expressins
1. 剪出……2. 发出指令3. 在每张卡上4. 在卡的另一面5. 尝试做某事6. 记住某事7. 放弃它、它们8. 放弃某事/做某事9. 坚持尝试10. 把事情记得更好11.以……开始……
cut ut… give instructins n each side n the ther side f the card try t d sth. remember sth. give it /them up give up sth. / ding sth. keep trying remember things better start/begin…with…
1. The TV is t lud. Please _______. A. turn it dwn B. t turn it dwn C. turn dwn it D. t turn dwn it 2. _______ late again, Bill! A. Dn't t be B. Dn't be C. Nt be D. Be nt
3. _______ crss the rad until the traffic lights turn green. A. Nt B. Wn't C. Desn't D. Dn't 4. _______ me the truth, r I'll be angry. A. Telling B. T tell C. Tld D. Tell
1. Will yu please read it again mre slwly? (改为祈使句) _______ again mre slwly, please. 2. If yu dn't listen t me, I'll g. (改为同义句) ________ me, r I'll g. 3. The teachers ften tell the students nt t be careless. (改为祈使句) ________ careless, please. 4. Please sit next t Nancy. (改为否定句) ________ next t Nancy.
1. 你应该在南京换火车。 __________ change trains at Nanjing.2. 你最好在下雨前回家。 ___________________ befre the rain starts. 3. 现在你最好别打棒球了。 _____________________ baseball nw.4. 不要把金鱼放在阳光下。 _________ the gldfish in the sun.
Yu'd better g hme
Yu had better nt play
1. 当我们向他人发出命令、提出要求或建议时，常使用祈使句。其主语通常省略。其否定形式是在动词原形前加d nt/dn’t。为了表示客气和礼貌，可以加上please。2. 当我们给他人提建议时，可以用had better和shuld，表示“最好”或“应该”做某事。否定形式是had better nt和shuld nt/shuldn’t。
Have a revisin f Grammar. Finish ff Perid Fur.
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