Unit5Grammar课件沪教版英语八年级下册

AUsingitasanemptysubject(1)Wecanuse“Itis+adjective+to+verb”toexpressourfeelingsorattitudestowardsdifferentactivities.(from7AU3)

Itisexciting

totakeatripinthecountrysideinspringtime.Itissunnytoday.I’mhotandthirsty.

Itisnice

toeaticecreamonahotday.Itiscoolanddrytoday.Itisfun

tocollectautumnleavesindifferentshapes.Itiscoldtoday.

Itisfun

toplayinthesnow.emptysubjectPresentationTotakeatripinthecountrysideinspringtimeisexciting.AUsingitasanemptysubject(1)Present–Observe–Analyse–SummarizeTherearemoreandmorepeopleonthisplanet,andthisisharmingtheenvironment.Itisnoteasyformanyanimalspeciestosurvive.Ioncewatchedavideoaboutillegalhunting.Inthevideo,somehunterskilledatiger.Itwasverycruelofthemtodoso.Whatisworse,thosepeoplealsomakealotofmoneyfromthis.Ithinkitiswrongofthemtosellproductsmadefromanimalsindanger.Itisimportantforustoprotectnature.MyfriendandIhavejoinedalocalenvironmentalgroup.Thisweekend,wewillcollectmoneyforawildlifecharity.Myunclehasofferedtodriveustotheevent.Itisverykindofhimtohelp!1.Whatdoes“it”referto?emptysubjectPresentationAUsingitasanemptysubject(1)Itisnoteasyfor

manyanimalspeciestosurvive.

Itisimportantfor

ustoprotectnature.Itwasverycruelof

somehunterstodoso.Itiswrongof

somehunterstosellproductsmadefromanimalsindanger.Itisverykindof

myuncletohelp!2.Whodoestheaction?3.Whatdoestheadjectivedointhesentence?Doesitmodifytheverbordescribeaperson?Manyanimalspeciessurvive.ModifyingtheverbDescribingthepersonTosurviveisnoteasy.Somehuntersdidso.Somehunterswereverycruel.logicalsubjectPresentation(1)不定式的逻辑主语在句型“It

is+adjective+for/of+noun/pronoun+to+verb”中，动词不定式是真正的主语，但在多数情况下我们常用it作形式主语，用来指代句子中后置的动词不定式。for和of后面的名词或代词作动词不定式的逻辑主语。AUsingitasanemptysubject(1)Presentation(2)形容词修饰的成分在“It

is+adjective+for+noun/pronoun+to+verb”句型中，形容词主要说明动词不定式所表示的动作的特征，如可能性、必要性、重要性、紧迫性、频繁程度等。此句型常用于表达对某人做某件事情的看法，说话时这个动作可能未必完成。如：Itisnecessaryforustoinvolvemorepeopleinanimalprotection.

(Theactionof“toinvolvemorepeopleinanimalprotection”isnecessary.)对我们来说，让更多的人保护动物是必要的。（“我们”可能尚未让更多的人保护动物，但是让更多的人保护动物这件事很有必要。）常用于这一句型的形容词有：amazing,easy,exciting,good,helpful,impossible,interesting,important,necessary,possible,simple,wonderful。AUsingitasanemptysubject(1)Presentation在“It

is+adjective+of+noun/pronoun+to+verb”句型中，形容词主要描述句中人或事物的特征，且大多是描述人物的性格、品质的形容词。此句型用来评价某人或某物的行为，而且，在说这句话之前，句中的那个动作通常都已经完成。如：Itiswiseofustoinvolvemorepeopleinanimalprotection.(Youhaveinvolvedsomanypeopleinanimalprotection.Youarewise.)我们让更多人保护动物，我们真是太睿智了。（“我们”已让更多的人保护动物，wise是对“我们”的评价。）常用于这一句型的形容词有：brave,generous,kind,wise,good,mean,polite,thoughtful。AUsingitasanemptysubject(1)PresentationCompletethesentenceswiththecorrectformofthewordsinbrackets.It’sverykind_______(for/of)youtohelpme.Itwasveryclever_______(for/of)himtosetatraptocatchtherunawaydog.It’snecessary_______(for/of)ustolearnmoreaboutanimals.Itishelpful_______(for/of)studentstoreviewthethingstheyhavestudied.PracticeofofforforPracticelearnabouttheanimalsindangerintheareaItiswrongofpeople/ustobuyproductsmadefromanimalsindanger.Itishelpfulofpeople/ustoreportanyhuntingofanimalsindanger.Itisrightforpeople/ustoprotectthehomesofanimalsindanger.Itisnecessaryforpeople/ustotakecareofinjuredanimals.Readthenotesbelow.Thenwriteashortnoticetoremindyourclassmatesabouthowtoprotectanimalsindanger.PairworkImaginethatyouareinterviewingtheelephantfromthestoryon69.Listentohisstoryandrespond.Usethestructurebelow.Itis+adjective+for/of+noun/pronoun+to+verbWithoutwarningtheyraisedtheirgunsandshotdeadmymotherandseveralofmyrelatives.Itiscruelofthemtokillyourfamilyandrelatives.Theyforcedmetodoallkindsofstupidtrickstomakethemlaugh.Itiswrongofthemtotreatyoulikethat.Now,peopleleaveusbagsofcornandfruitontheroadside.Thefoodleadsusintherightdirectionbacktoourhomeland.Itiskindofthemtodothat.PracticeNoticewrong—feedanimalsinthezoobrave—stopothersfromhurtingtheanimalsimportant—stayawayfromwildanimalsthoughtful—stayquietduringthevisitGroupworkHowshouldwebehavewhenwevisitawildlifepark?Whatshouldn’tpeopledothere?Discussingroups.Usethestructurebelow.PracticeHello,visitors!Welcometothezoo.Herearesometipstohelpyouenjoythetrip.Itiswrongofpeopletofeedanimals.Thefoodmaymakethemill.Itisbraveofpeopletostopothersfromhurtingtheanimalsinthewildlifepark.Itisimportantforpeopletostayawayfromwildanimals.Thishelpskeepbothvisitorsandanimalssafe.Itisthoughtfulofpeopletostayquietduringthevisit.Noisemightscaretheanimals.Itis+adjective+for/of+noun/pronoun+to+verbNow,theelephantfamilyhasenoughfoodtoeat.BUsingadjective+enough+to+verbPresentation1.Whatdoes“enough”mean?2.Whatsentencepatternscanyousee?“足够的”enough+nounadjective+enough+to+verbnot+adjective+enough+to+verbtoo+adjective+to+verbBUsingadjective+enough+to+verb含义：表示主语所指的对象有足够的能力去做某件事情，意为“足够……来……”。形容词位置：在“adjective+enough+to+verb”句型中，enough为副词，修饰形容词，形容词一定要放在enough前面。“not+adjective+enough+to+verb”意为“不够……来……”；“too+adjective+to+verb”意为“太……以致不能……”，两者可以表达相似的句意，但是句中要使用表达相反含义的形容词，如例句中，strong和weak是一对反义词。PresentationPracticenotbraveenoughtotellkindenoughtohelpbigenoughtofeedMaKaiistellingDuYunabouthistriptothezoo.Completetheirconversationwiththewordsinbrackets.句子改写：1.Elephantsarereallysmart.Theycanrecognizethemselvesinthemirror.Elephantsare___________________________themselvesinthemirror.2.Elephantsarestrong.Theycanliftupto400kgwiththeirtrunks.Elephantsare___________________________upto400kgwiththeirtrunks.3.Babyelephantsarenotbigenoughtofeedthemselves.Babyelephantsare___________________________themselves.4.Thesickbirdwasstrong.Itcouldflyagain.Thesickbirdwas___________________________again.5.Xiujuanwasreallytired.Shecouldn’treturntotheshore.Xiujuanwas_____________________totheshore.smartenoughtorecognizestrongenoughtolifttooyoungtofeedstrongenoughtoflytootiredtoreturnadjective+enough+to+verb;too+adjective+to+verbPracticeProductionmakeastarttohelpsavewildlife.protectanimalsindangerbecausetheyarepartoftheecosystem.huntandkillanimalsfortheirskin,furandmeat.doourparttohelpprotectanimals.Talkinpairsaboutwhyweshouldhelpprotectanimalsindanger.Usetheexpressionsbelowtohelpyou.GroupworkWriteashortparagraphaboutprotectinganimalsindanger.Usethestructuresbelow.Itis+adjective+for+noun/pronoun+to+verbItis+adjective+of+noun/pronoun+to+verbtoo+adjective+to+verbadjective+enough+to+verbSomepeoplehuntandkillwildanimals.Itisverycruelofthemtodoso.However,therearemanyvolunteerswhohelpprotecttheseanimalsfromhunters.Ithinkitisverykindofthemtodothat.I’mnotbraveenoughtoworkwithwildanimalsmyself,butmyfriendsandIhelpraisemoneyforanimalcharities.ProductionItisimportantforstudents____________(learn)aboutanimalsindanger.Itiskindofyou____________(feed)thehomelesscatsinthepark.Itisirresponsibleofpeople____________(throw)rubbishintotheriver.Theboxistooheavyfortheoldman____________(move)alone.Itisdangerousfortigers____________(lose)theirforesthomes.Thelittleboyisstrongenough____________(carry)waterforthethirstydog.Itisnecessaryforeveryone____________(stop)usingplasticbags.Theriveriscleanenoughforthefish____________(swim)happilyagain.Itisbrave____________themantosavethekidwhofellintothewater.Itwashard____________thevolunteerstocleanthedirtybeach.Morepractice在空白处填入适当的词或用括号中所给单词的适当形式填空。tolearntofeedtothrowtomovetolosetocarrytostoptoswimofforMorepractice阅读短文，在空白处填入一个适当的单词或用括号内所给词的正确形式填空，使短文通顺、连贯。Animalshowsarenotgoodfortheanimals.Itishardforanimals____________(live)insmallcages.Manyanimalsarenotstrongenough____________(perform)everydaybecauseoftoomuchtrainingandmalnutrition（营养不良）.Elephants,tigersanddolphinsareoftenforcedtodosuchperformanceforpeople’sentertainment（娱乐）.Somepeoplearekindenough____________(see)thattheanimalsareunhappy.Ifwearecarefulenough____________(observe)theirbehaviour,wecanseetheylooktiredorafraid.Theseanimalsmayshowsignsofstressbymovingbackandforthormakingsadsounds.Itisimportant____________(tell)peoplethatanimalshowscanbeharmful.Ifwearebraveenough____