Unit2SectionA(GrammarFocus)課件人教版級(jí)英語下冊(cè)

Unit2

NoRules,NoorderSectionA(GrammarFocus)Whatrulesdowefollow？我們遵守哪些規(guī)則？Standup.Sitdown.Openyourbook.Raiseyourhands.Clapyourhands.Useyourpen.Isay,youdo.語法聚焦：祈使句Lookattheblackboard祈使句

(Imperativesentences)/?m?per?t?v/祈使句Imperativesentences命令建議祝愿請(qǐng)求警告勸說...Helpme,please.Havefun.becareful...Nophotos.Let'sstarttheparty.

Don’tbesad.Standup.祈使句一般用來表示請(qǐng)求、命令、勸告、警告、禁止等。祈使句的主語一般是第二人稱you，但往往省略。祈使句的肯定式以動(dòng)詞原形開頭，否定式在動(dòng)詞原形前加don’t。句末用句號(hào)或感嘆號(hào)，讀時(shí)用降調(diào)。為表示禮貌，祈使句經(jīng)常在句首或句末加上please。當(dāng)please在句末時(shí)，其前通常加逗號(hào)。1.Pleasegivemesomewater.

請(qǐng)給我一些水。(表請(qǐng)求)2.Goout!

出去！(表命令)3.Makegooduseofyourfreetime,please.

請(qǐng)好好利用你的空閑時(shí)間。(表勸告)4.Pleasedon’truninthehallways.

請(qǐng)不要在走廊里跑。(表警告)祈使句

(Imperativesentences)Readthesentences.Dotheverbsinboldneedtochangeforms?Why?Walkinthehallway.Don’trun!Bepoliteandtreat

oneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.Do型祈使句Be型祈使句Can引導(dǎo)一般疑問句3a情態(tài)動(dòng)詞包括：Can;May;Will;Must;Should;Haveto+動(dòng)詞原形Imperatives祈使句肯否肯否肯否否Do型祈使句Be型祈使句Let型祈使句No型祈使句1234動(dòng)詞原形(+賓語)+其他.Don’t+動(dòng)詞原形(+賓語)+其他.Be+表語(名詞/形容詞)+其他.Don’t+be+表語(名詞/形容詞)+其他.Let+賓語+動(dòng)詞原形+其他.Don’tlet+賓語+動(dòng)詞原形+其他.Let+賓語+not+動(dòng)詞原形+其他.No+動(dòng)詞-ing形式.No+名詞.Do型祈使句1Be型祈使句Let型祈使句No型祈使句234No+動(dòng)詞-ing形式.No+名詞.Nosmoking.Nofishing.Nosmoking.Nophotos.祈使句口訣：動(dòng)原開頭祈使句，

有do,有be,有l(wèi)et,有No；

主語是you常省去

加上please更禮貌，句末句首都可以；

變否定，句首don’t莫忘記。祈使句句尾用句號(hào)或感嘆號(hào)，讀時(shí)用降調(diào)。句末用please時(shí)，前面通常加逗號(hào)。Bequiet.Keepquiet.Don’ttalkloudly.NophonesDon’tusephones.Don’tlitter.Don’trun.Norunning.Playfriendlywithotherchildren.Don’tforgetyourhomework.Pleasepassmeapencil.Brushyourteetheveryday.Don’tmakeamess!真題演練：改錯(cuò)1.Playtofriendlywithotherchildren.2.Don’tforgettingyourhomework.3.Pleaseyoupassmeapencil.4.Brushingyourteetheveryday.5.Don’ttomakeamess!表達(dá)意義人稱,數(shù)和時(shí)態(tài)否定形式havetomusthaveto&must側(cè)重于客觀需要,含有“不得不”的意思側(cè)重于說話者的主觀意愿,認(rèn)為有必要或者有義務(wù)去做某事有人稱,數(shù)和時(shí)態(tài)的變化,第三人稱單數(shù)形式為hasto無人稱,數(shù)和時(shí)態(tài)的變化don’t/doesn’thaveto“不必”mustn’t禁止“不要;不許”1.Don’tjumpthequeue.You_______________waityourturn.2.I_______feedmydogmanykindsoffood,butI____________givehimchocolate.Itisbadforhim!3.A:CanIleavetheclassroomifIdon'tfeelwell?

B:Yes,butyou____________tellyourteacheraboutitwhen

you______________beabsentfromclass.4.A:Hey!CanIlookatyourbook?B:Shh,we_____________talkquietlyinthelibrary.5.A:Canyouputonyourseatbelt?We_______________wearone

whenwe’reinacar.

B:Sure.Thanks!Completethesentencesusingcan,haveto/must,orcan't/mustn't.haveto/mustcancan’t/mustn’thaveto/musthaveto/musthaveto/musthaveto/must等你的順序缺課安全帶插隊(duì)3bLookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.Donoteatordrink.Noeatingordrinking.Youcan’t/mustn’teatordrink.3cDonotpark.Donottakephotos.Donotswim.Donotfeedanimals.Noparking.Nophotos.Noswimming.Nofeeding.Youcan’t/mustn’tpark.Youcan’t/mustn’ttakephotos.Youcan’t/mustn’tswim.Youcan’t/mustn’tfeedanimals.Ingroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.Inthelibrary,wemustkeepquiet.Wemustn’tmakenoise.Wecan’t…制造噪音library

schooldininghall

park

cinema

hospital3c(1)noisen.噪聲;喧鬧聲adj.noisy吵鬧的;嘈雜的benoisymakenoise/noises/anoise吵鬧;制造噪聲例句:不要吵鬧.Don’tmakeanoise.

1.__________(open)thedoor,Sara.2.__________(notbe)lateforourfamilydinner.3.No__________(talk)inthelibrary!4.Please__________(notplay)computergamessomuch,Jim!5.Be__________(care)!Theknifemayhurtyou.6.I________(can)playbasketballwithyou.Ihavetoomuchhomeworktodo.7.—Canyourparents________(speak)English?—Yes,theycan.8.Youcan________(swim)intheswimmingpoolwithyourfriends.9.Slowdown,please.You________(must)ridesofastinthestreets.10.Wehaveto________(put)onourseatbeltswhenwe’reinacar.真題演練：用括號(hào)內(nèi)所給單詞的適當(dāng)形式填空1.Open2.Don’tbe3.talking4.don’tplay5.careful6.can’t7.speak8.swim9.mustn’t10.putOpenDon’tbetalkingdon’tplaycarefulcan’tspeakswimmustput1.Jim,you________wearyourclothesbyyourselfeverymorning.2.—_________Ireadthebookinthereadingroom?

—No,youdon’t_________.3.Thereisnobusnow.I_________gobackhomeonfoot.4.—MustIfinishmyhomeworktoday?

—Yes,you______.5.—Mum,canIgetuplateattheweekend?

—Sure.Youdon’t_________getupe