人教版(2024)七年級英語下冊Unit2NoRules,NoOrderSectionAGrammarFocusLearningObjectives語言能力1學習能力2文化意識3思維品質4tomastertheusagesofimperativesandmodalverbs(can,haveto,must)andusethemtoexpresstherulestomastertheabilityoflearningtomeetpracticalneeds;togiveinformationaboutrulesindifferentplacestofollowtherules;toknowtherulesindifferentplacestostimulatetheinterestofEnglishlearning;toleadSstoexpresstheirthoughtsWalkinthehallway.Don’trun!Bepoliteandtreat

oneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.1.通常省略主語you。2.其肯定形式常以動詞原形開頭，否定形式是在動詞原形前加don’t。3.祈使句句尾用句號或感嘆號。2.祈使句的特點？肯定式Turnback!Gotobednow!Do型：動詞原形+其他Bequiet,please!Becareful!Be型：Be+其他Let’sgo!Let’shavearest!Let型：Letsbdo+其他3.祈使句的類型？情態動詞cancan可表示能力、許可、請求等。其否定形式為can’t/cannot.E.g.IcanspeakalittleFrech.我會說一點法語。（能力）

Wecan’truninthehallways.我們不能在走廊上奔跑。（許可）

Canyouhelpme?

你能幫助我嗎？（請求）?

Donoteatordrink.?

Noeatingordrinking.?

Youcan't

/

mustn'teatordrink.?

Donotparkhere.?

No

parking.?

Youcan't

/

mustn'tparkhere.?

Donottakephotos/pictures.?

Nophotos/pictures.?

Youcan't

/

mustn'ttakephotos/pictures.3cLookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.P133c?

Donoteatordrink.?

Noeatingordrinking.?

Youcan't

/

mustn'teatordrink.CONTENT1.

Imperatives3.ModalVerb:Must4.ModalVerb:Haveto5.Summary6.Homework2.ModalVerb:CanGoodlearnerswantedListencarefullySpeakclearlyReadaloudWorkactivelyShowrespectNotesomethingimportant否定式Don’tbelate!Don’tsmokehere!Don’tlethimleave!Don’t型Don’tbe+其他

Don’tdo+其他

Don’tlet+其他Nophotos!Nosmoking!No型 No+n.No+v.ingMembersListencarefullySpeakclearlyReadaloudWorkactivelyShowrespectNoteIntotalGroupleaderMember1Member2Member3EvaluateyourselfWarmupLet’ssing!Whatrulesarementioned?ModalVerbs(情態動詞)Walkinthehallway.Don’trun!Bepoliteandtreat

oneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwe

bringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeat

snacksinclass?No,wecan’teatinclass.Wehaveto

eatinthedininghall.1.出現了哪些情態動詞？can,must,havetoWarmupWhatrulesarementioned?Walkinschool.Benice.Raiseyourhandandwaittospeak.WarmupWhatrulesarementioned?Keepyourhandsandfeettoyourself.Cleanup.Lookatthespeaker.Presentation什么是祈使句(Imperatives)？

●用于表達命令、請求、勸告、警告、禁止等

的句子叫祈使句。●

祈使句因對象（即主語）是第二人稱，

所以通常省略。●

祈使句為動詞原形開頭（No型除外）。●

祈使句有Do型、Be型、Let型、No型。PresentationKeepyourhandsandfeettoyourself.Cleanup.Lookatthespeaker.Raiseyourhandandwaittospeak.Walkinschool.Benice.They’reimperatives(祈使句).動詞原形PresentationDo型肯定形式否定形式實義動詞原形+其他Goaway.Listencarefully.Walkslowly.Don’t+實義動詞原形+其他Don’tdrawonthewall.Don’trun.Don’tmakenoise.PresentationBe型肯定形式否定形式Be+形容詞/名詞(詞組)Benice.Bepolite.Beagoodboy.Don’t+be+形容詞/名詞(詞組)Don’tbenervous.Don’tbeshy.Don’tbeabadperson.PresentationLet型肯定形式否定形式Let+賓語+動原+其他Let’sgohome.Let’sdoit.Letmetry.Don’t+let+賓語+動原+其他Let+賓語+not+動原+其他Don’tlethimtouchit.Lethimnottouchit.PresentationNo型:表示禁止否定形式No+名詞/動名詞Nophotos.Nofishing.Noswimming.PresentationReadthesentences.Dotheverbsinboldneedtochangeforms?Why?3aTheydon’tneedtochangeforms.They’reimperatives.情態動詞mustmust表示必須。常表示說話人的主觀看法，其否定形式為mustn’t.eg.MustIfinishmyhomeworkbeforeeighto’clock?Yes,youmust.No,youmustn’t.No,youneedn’t.No,youdon’thaveto.mustn’t表示禁止：不許情態動詞havetohaveto表示不得不。常強調客觀需要。其否定形式為don’thaveto。1.肯定句：主語+_____________+___________.2.

否定句：主語+_______________haveto+__________.3.

一般疑問句：__________+主語+haveto+__________?Yes,主語+_________./No,主語+____________.do/doesdon’t/doesn’thave/hasto動詞原形動詞原形動詞原形Do/Doesdon’t/doesn’t?

Donoteatordrink.?

Noeatingordrinking.?

Youcan't

/

mustn'teatordrink.?

Donotswim.?

No

swimming.?

Youcan't

/

mustn'tswim.?

Donotfeedthebirds.?

Nofeedingthebirds.?

Youcan't

/

mustn'tfeedthebirds.3dIngroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.P133dlibrary

schooldininghall

park

cinema

hospitalInthelibrary,wemustkeepquiet.Wemustn'tmakenoise.Wecan't…Must&Haveto二者均可表示“必須”，其后均接動詞原形。但是，haveto表示客觀條件要求某人不得不做某事must表示某人主觀意愿上必須或者有義務要做某事Hehastoliveatschoolbecausehishomeisfarawayfromschool.Wemustdosomethingtoprotecttheearth.我們必須做點什么來保護地球。他家離學校太遠了，他不得不住校。祈使句祈使句的定義祈使句的基本結構祈使句一般用來表示請求、命令、勸說、號召、警告等。祈使句的主語一般是第二人稱you，往往省略。祈使句的動詞都為動詞原形。Do型Be型Let型其他類型肯定句：實義動詞原形+賓語(+其他).否定句：Don't+實義動詞原形+賓語(+其他).肯定句：Be+表語(+其他).否定句：：Don't+be+表語(+其他).肯定句：Let+賓語+動詞原形(+其他).否定句：No+V-ing/名詞！Never代替Don't來加強語氣。Don't+let+賓語+動詞原形(+其他).Let+賓語+not+動詞原形(+其他).can表示請求、許可，意為“可以”肯定句：主語+can+動詞原形+其他.否定句：主語+can't(cannot)+動詞原形+其他.一般疑問句及回答：-Can+主語+動詞原形+其他?-Yes,主語+can./No,主語+can't.相同點和不同點must表說話人的主觀看法，表示必須、必要肯定句：主語+must+動詞原形+其他.否定句：主語+mustn't/mustnot+動詞原形+其他.haveto表示“不得不；必須”，強調客觀需要一般疑問句及回答：-Must+主語+動詞原形+其他?-Yes,主語+must./No,主語+needn't/don'thaveto.肯定句：主語+have/has/had

to+動詞原形+其他.否定句：主語+don't/doesn't/didn't

have

to+動詞原形+其他.一般疑問句及回答：-Do/Does/Did+主語+have

to+動詞原形+其他?-Yes,主語+do/does/did./No,主語+don't/doesn't/didn't.特殊疑問句：疑問詞+do/does/did+主語+haveto+動詞原形+其他?情態動詞Ⅰ.將下列句子改為祈使句。1.Youmustbequietintheclassroom.__________________________________________2.Youcan'tplaythepianoatnight.__________________________________________3.Wecantakehersomebooks.__________________________________________4.Youcancomein.__________________________________________5.Youcan'tplaybasketballhere.__________________________________________Bequietintheclassroom.