Unit2SectionA(GrammarFocus)课件人教版级英语下册

Unit2

NoRules,NoorderSectionA(GrammarFocus)Whatrulesdowefollow？我们遵守哪些规则？Standup.Sitdown.Openyourbook.Raiseyourhands.Clapyourhands.Useyourpen.Isay,youdo.语法聚焦：祈使句Lookattheblackboard祈使句

(Imperativesentences)/ɪmˈperətɪv/祈使句Imperativesentences命令建议祝愿请求警告劝说...Helpme,please.Havefun.becareful...Nophotos.Let'sstarttheparty.

Don’tbesad.Standup.祈使句一般用来表示请求、命令、劝告、警告、禁止等。祈使句的主语一般是第二人称you，但往往省略。祈使句的肯定式以动词原形开头，否定式在动词原形前加don’t。句末用句号或感叹号，读时用降调。为表示礼貌，祈使句经常在句首或句末加上please。当please在句末时，其前通常加逗号。1.Pleasegivemesomewater.

请给我一些水。(表请求)2.Goout!

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

请好好利用你的空闲时间。(表劝告)4.Pleasedon’truninthehallways.

请不要在走廊里跑。(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引导一般疑问句3a情态动词包括：Can;May;Will;Must;Should;Haveto+动词原形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动词原形(+宾语)+其他.Don’t+动词原形(+宾语)+其他.Be+表语(名词/形容词)+其他.Don’t+be+表语(名词/形容词)+其他.Let+宾语+动词原形+其他.Don’tlet+宾语+动词原形+其他.Let+宾语+not+动词原形+其他.No+动词-ing形式.No+名词.Do型祈使句1Be型祈使句Let型祈使句No型祈使句234No+动词-ing形式.No+名词.Nosmoking.Nofishing.Nosmoking.Nophotos.祈使句口诀：动原开头祈使句，

有do,有be,有let,有No；

主语是you常省去

加上please更礼貌，句末句首都可以；

变否定，句首don’t莫忘记。祈使句句尾用句号或感叹号，读时用降调。句末用please时，前面通常加逗号。Bequiet.Keepquiet.Don’ttalkloudly.NophonesDon’tusephones.Don’tlitter.Don’trun.Norunning.Playfriendlywithotherchildren.Don’tforgetyourhomework.Pleasepassmeapencil.Brushyourteetheveryday.Don’tmakeamess!真题演练：改错1.Playtofriendlywithotherchildren.2.Don’tforgettingyourhomework.3.Pleaseyoupassmeapencil.4.Brushingyourteetheveryday.5.Don’ttomakeamess!表达意义人称,数和时态否定形式havetomusthaveto&must侧重于客观需要,含有“不得不”的意思侧重于说话者的主观意愿,认为有必要或者有义务去做某事有人称,数和时态的变化,第三人称单数形式为hasto无人称,数和时态的变化don’t/doesn’thaveto“不必”mustn’t禁止“不要;不许”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等你的顺序缺课安全带插队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.噪声;喧闹声adj.noisy吵闹的;嘈杂的benoisymakenoise/noises/anoise吵闹;制造噪声例句:不要吵闹.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.真题演练：用括号内所给单词的适当形式填空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