Unit5Grammar课件沪教版八年级英语下册

Unit5SavinganimalsindangerGrammarInthislesson,studentswillbeableto:understandandusethestructure"adjective+enough+to+verb",andrecognizeitsrelationshipwith"too+adjective+to+verb".masterthetwocoresentencepatternswithitasanemptysubject.Focuson基本用法Usingitasanemptysubject(1)Let'sreadtwosentencesandfeelwhichoneismorecomfortableandmorenatural.Whichsentenceiseasiertoread?Whichonedoesn'tmakeyoufeel"top-heavy(头重脚轻)"?Whenthesubjectofasentenceisalonginfinitiveexpression,weusuallystartthesentencewiththeemptysubject

it

andputtheinfinitiveexpressionattheend.ToprotectthegiantpandareserveinChengduwellisveryimportantforus.ItisveryimportantforustoprotectthegiantpandareserveinChengduwell.Readthepassageaboutprotectinganimalsindanger.Payattentiontothesentences

inred.Explainwhat

it

referstoineachofthesentencesinred.Therearemoreandmorepeopleonthisplanet,andthisisharmingtheenvironment.Itisnoteasyformanyanimalspeciestosurvive.

Ioncewatchedavideoaboutillegalhunting.Inthevideo,somehunterskilledatiger.

Itwasverycruelofthemtodoso.Whatisworse,thosepeoplealsomakealotofmoneyfromthis.Ithink

itiswrongofthemtosellproductsmadefromanimalsindanger.Itisimportantforustoprotectnature.

MyfriendandIhavejoinedalocalenvironmentalgroup.Thisweekend,wewillcollectmoneyforawildlifecharity.Myunclehasofferedtodriveustotheevent.

Itisverykindofhimtohelp!It作形式主语，放于句首。不定式短语是真正的主语，放于句末。为什么用到的介词不同呢？Itis+adj.+todosth.+

for/of

+

n./pron.1.Itisnoteasyformanyanimalspeciestosurvive.2.Itisimportantforustoprotectnature."Itis+adj.

+

for

+n./pron.+todosth."意为"对某人来说，做某事……"。在该句型中，形容词如dangerous,difficult,easy,hard,impossible,important,possible等，修饰的对象是动词不定式，这个句型往往用于句子强调从这个人的角度看待该动作的难易或可能性，这个动作通常尚未发生。该结构多用于陈述客观情况，而非表达对该人的主观评价。Weuseforwhentheadjectivemainlymodifies

_______.theverb1.Itwasverycruelofthemtodoso.2.Ithinkitiswrongofthemtosellproductsmadefromanimalsindanger.3.Itisverykindofhimtohelp!Weuseof

whentheadjectivemainlydescribes

_________."It

is+adj.

+

of+

n./pron.

+todosth."意为"某人做某事真/太……"。在该句型中，形容词多是描述人物的性格、品质的形容词，如careless,clever,good,kind,nice,polite等，修饰的对象是句子的逻辑主语，即后面的名词或代词。而且，在说这句话之前，句中的那个动词通常都已经完成。theperson例句句型句中形容词的修饰对象说话时句中所说动作是否完成Itisimportantfor

us

tolearnEnglishwell.Itisveryniceofyou

tolendmeanumbrella.Itis

+adj.

+

for+n./pron.+todosth.It

is+adj.

+

of+

n./pron.

+todosth.动词不定式"tolearnEnglishwell"句子的逻辑主语，即of后面的代词"you"说话时这个动作可能并未完成说话前句中的动作已经完成Let'sprotectanimalsindanger!(1)Itisimportantforpeople/usto____________________________________________.(2)________________________________________________________________________(3)________________________________________________________________________(4)________________________________________________________________________(5)________________________________________________________________________P7311Readthenotesbelow.Thenwriteashortnoticetoremindyourclassmatesabouthowtoprotectanimalsindanger.Waystoprotectanimalsindanger(1)learningabouttheanimalsindangerinthearea—important(2)Buyproductsmadefromanimalsindanger—wrong(3)reportanyhuntingofanimalsindanger—helpful(4)protectthehomesofanimalsindanger—right (5)takecareofinjuredanimals—necessarylearnabouttheanimalsindangerintheareaItiswrongofpeople/ustobuyproductsmadefromanimalsindanger.Itishelpfulforpeople/ustoreportanyhuntingofanimalsindanger.Itisrightforpeople/ustoprotectthehomesofanimalsindanger.Itisnecessaryforpeople/ustotakecareofinjuredanimals.Notice受伤的动物Usingadjective+enough+to+verbFocuson基本用法Theelephantisnowstrongenoughtowalk.Readthesentenceandpayattentiontoitspattern.enough作副词，修饰动词、形容词和别的副词时，置于它们之后。"adj.+

enough+to

dosth."句型中，enough为副词，修饰形容词，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……"。Thingstorememberenoughto和too...to有时可以转换，注意其中的形容词要作相应的变化，即：enough前的形容词与too之后的形容词互为反义词，同时应改为not...enoughto的形式。Look!Theelephantwasnot

strongenoughtowalk.=Theelephantwastooweaktowalk."too+adj.

+to

dosth."意为："太……以至于不能做某事"，表示因为程度过甚，导致某个动作无法完成，常用于表达一个否定的结果。P7422MaKaiistellingDuYunabouthistriptothezoo.Completetheirconversationwiththewordsinbrackets.MaKai:Aboywasthrowingrocksatawildduckinthezoo,butIwas(1)_____________________(notbrave/tell)himtostopdoingit.Thenamanandawomanwalkedpast,soItoldthemwhatwasgoingon.Theywere(2)__________________(kind/help)me.Theboyranawayimmediately!DuYun:Whathappenedtotheduckthen?MaKai:Itflewawayfromus.Ithinkitcameclosebecauseitwashungry.DuYun:Didyouseeanyotheranimalsduringyourtrip?MaKai:Yes,Isawsomesheepinthefeedingarea.Babysheepare(3)________________(big/feed)themselves.Itooksomephotos.Here!Takealook!DuYun:Wow!Howcute!notbraveenoughtotellkindenoughtohelpbigenoughtofeedItis

importantforusto...Itis

cruelofhumansto...Weareoldenoughto...Itisnevertoolateto...Talkinpairsaboutwhyweshouldhelpprotectanimalsindanger.Usetheexpressionsbelowtohelpyou.P743*Itis+adj.+for+n./pron.+todosth.对某人来说，做某事……*adj.+enough+todosth.足够……去做某事*Itis+adj.+of+n./pron.+todosth.某人做某事真/太……*

not+

adj.+enough+todosth.=too+adj.

+todosth.1.LinTaoran_______togetthefirstplaceinthe100-meterrace.A.enoughfast B.fastenough C.slowenough【2025绥化市

单项选择】2.Sorry,youarenotoldenoughtodrive.（改为同义句）Sorry,youare_______young_______drive.【2025重庆市

完成句子】tooto①Heis___