高中英語語法填空課時(shí)3課件公開課一等獎(jiǎng)?wù)n件省賽課獲獎(jiǎng)?wù)n件

【詞類轉(zhuǎn)換題】課時(shí)3第1頁（三）詞類轉(zhuǎn)換題技巧1填形容詞判斷技巧技巧2填副詞判斷技巧此類題主要是考查名詞、形容詞和副詞，根據(jù)該詞在句中所作句子成份來確定括號(hào)內(nèi)單詞用哪種形式。第2頁技巧1填形容詞判斷技巧

作表語（在系動(dòng)詞之后）、定語（修飾名詞）或賓語補(bǔ)足語（表性質(zhì)或狀態(tài)），一般填一種形容詞。有時(shí)也考查形容詞比較級(jí)，要根據(jù)語境及句意來確定。第3頁【真題鏈接】①However,be________(care)nottogotoextremes.(2023全國卷)【解析】填careful。be之后接形容詞作表語，care形容詞形式是careful。②Ifyoufeelstressedbyresponsibilitiesatwork,youshouldtakeastepbackandidentifythoseof________(great)andlessimportance.(2023全國卷)【解析】填greater。and連接并列成份，由and后less可知，空格處也要用形容詞比較級(jí)。great比較級(jí)是greater。carefulgreater第4頁【真題鏈接】③Theobviousoneismoney;eatingoutonceortwiceaweekmaybe_________(afford)butdoingthismostdaysaddsup.(2023浙江卷)【解析】填affordable。根據(jù)前面be可知，此處是系表構(gòu)造，應(yīng)填一種形容詞。根據(jù)eatingoutonceortwiceaweek并結(jié)合常識(shí)可知應(yīng)是“付得起（affordable）”。affordable第5頁技巧2填副詞判斷技巧

用于修飾動(dòng)詞、形容詞、副詞或整個(gè)句子，在句中作狀語，則用副詞形式。第6頁【真題鏈接】①Itis________(certain)funbutthelifestyleisalittleunreal.(2023全國卷)【解析】填certainly。此處應(yīng)當(dāng)用副詞來修飾形容詞fun,certain副詞形式為certainly。

②Wallsmadeofadobetakeintheheatfromthesunonhotdaysandgiveoutthatheat________(slow)duringcoolnights,thuswarmingthehouse.(2023全國卷)【解析】填slowly。由于所填之詞是用于修飾動(dòng)詞短語giveoutthatheat，故用副詞形式slowly，指“慢慢地”釋放白天吸取熱量。certainlyslowly第7頁【真題鏈接】

③Thetitlewillbe________(official)giventomeataceremonyinLondon.(2023全國卷)【解析】填officially。空格處修飾過去分詞given，故用副詞修飾。official副詞形式是officially（官方地，正式地）。officially第8頁拓展詞類轉(zhuǎn)換題——填名詞判斷技巧

在全國卷Ⅰ語法填空題中，對于填名詞情況，考查名詞復(fù)數(shù)較多，而詞類轉(zhuǎn)換題中考查填名詞情況很少，尤其是近兩年，都沒有考查這個(gè)情況。

但全國卷Ⅱ和Ⅲ語法填空題中有包括這個(gè)考點(diǎn)，主要有兩種情況考查頻率較高：①動(dòng)詞轉(zhuǎn)換為名詞；②名詞構(gòu)詞法（名詞轉(zhuǎn)換為名詞）。知識(shí)第9頁【真題鏈接】

（1）Thisswitchhasdecreased________(pollute)inthecountry’smajorlakes.（2023全國卷）【解析】填pollution?？疾樵~類轉(zhuǎn)換之動(dòng)詞變?yōu)槊~。decrease意為“減少，減少”，后接名詞作賓語，故填pollute名詞形式pollution。pollution第10頁【真題鏈接】

（2）I’ma________(science)whostudiesanimalssuchasapesandmonkeys.（2023全國卷）【解析】填scientist?？疾樵~類轉(zhuǎn)換之名詞構(gòu)詞法。由空格后who可知，定語從句先行詞是表達(dá)人名詞，故填scientist。scientist第11頁溫馨提示填形容詞或副詞判斷技巧

①填形容詞情況

假如空格背面有名詞，那么這個(gè)名詞前面詞一定是形容詞;

②填副詞情況假如空格背面沒有名詞，但前面或背面有動(dòng)詞話，那么這個(gè)詞一定是副詞。另外，放在句首并用逗號(hào)隔開詞一定是副詞。第12頁（一）2023全國卷Ⅰ語法填空第13頁Accordingtoareviewofevidenceinamedicaljournal,runnerslivethreeyears___61___(long)thannon-runners.Youdon’thavetorunfastorforlong___62___(see)thebenefit.Youmaydrink,smoke,beoverweightandstillreduceyourriskof___63___(die)earlybyrunning.Whilerunningregularlycan’tmakeyouliveforever,thereviewsaysit___64___(be)moreeffectiveatlengtheninglife___65___walking,cyclingorswimming.Twooftheauthorsofthereviewalsomadeastudypublishedin2023___66___showedamerefiveto10minutesadayofrunningreducedtheriskofheartdiseaseandearlydeathsfromall___67___(cause).Thebestexerciseisonethatyouenjoyandwilldo.Butotherwise…it’sprobablyrunning.Toavoidkneepain,youcanrunonsoftsurfaces,doexercisesto___68___(strength)yourlegmuscles(肌肉),avoidhillsandgetgoodrunningshoes.Runningischeap,easyandit’salways___69___(energy).Ifyouaretimepoor,youneedrunforonlyhalfthetimetogetthesamebenefitsasothersports,soperhapsweshouldallgive___70___atry.longertoseedyingisthanthat/whichcausesstrengthenenergeticrunning/it第14頁【語篇解讀】本文是一篇說明文。文章介紹了跑步益處，并號(hào)召我們嘗試一下這種運(yùn)動(dòng)方式。

【解析】61.longer。考查形容詞比較級(jí)。句中than是比較級(jí)標(biāo)志，故填long比較級(jí)longer。62.tosee?？疾榉侵^語動(dòng)詞之動(dòng)詞不定式。分析句子構(gòu)造可知句子中不缺謂語，故此處應(yīng)用不定式短語toseethebenefit作目標(biāo)狀語。此句意為“你無須跑得很快，也無須跑很長時(shí)間就見到效果”。63.dying?？疾榉侵^語動(dòng)詞之動(dòng)名詞。介詞of后接動(dòng)詞時(shí)，要用動(dòng)名詞形式。64.is。考查時(shí)態(tài)和主謂一致。根據(jù)語境可知此處應(yīng)用一般目前時(shí)，因主語it是第三人稱，故謂語動(dòng)詞用is。65.than。考查介詞。根據(jù)句中比較級(jí)moreeffective可知，這里是把running與walking,cycling,swimming進(jìn)行比較，故填than。第15頁【解析】66.that/which?？疾橐龑?dǎo)定語從句關(guān)系詞。分析句子構(gòu)造可知，所填詞引導(dǎo)定語從句，修飾指物astudy,且在從句中作主語，故填關(guān)系代詞that或which。67.causes?？疾槊~復(fù)數(shù)。cause表達(dá)“原因，起因”時(shí)，是可數(shù)名詞。因前面有all,故填cause復(fù)數(shù)形式。68.strengthen?？疾樵~類轉(zhuǎn)換之名詞變?yōu)閯?dòng)詞。此處是不定式短語作目標(biāo)狀語，不定式to后接動(dòng)詞原形，故填strengthen。69.energetic?？疾樵~類轉(zhuǎn)換之名詞變?yōu)樾稳菰~。連系動(dòng)詞is后接形容詞作表語，故填energy形容詞形式energetic。70.running/it?？疾槊~或代詞。該句意在號(hào)召我們嘗試一下這種運(yùn)動(dòng)，因此能夠填名詞running,也能夠用it指代。givesthatry意為“嘗試一下某事”。第16頁（二）2023全國卷Ⅱ語法填空第17頁DietshavechangedinChina—andsotoohasitstopcrop.Since2023,thecountry___61___(grow)morecornthanrice.Cornproductionhasjumpednearly125percentover___62___past25years,whilericehasincreasedonly7percent.Atasteformeatis___63___(actual)behindthechange：Animportantpartofitscornisusedtofeedchickens,pigs,andcattle.Anotherreasonforcorn’srise：Thegovernmentencouragesfarmerstogrowcorninsteadofrice____64____(improve)waterquality.Cornuseslesswater___65___riceandcreateslessfertilizer(化肥)runoff.Thisswitchhasdecreased___66___(pollute)inthecountry’smajorlakesandreservoirsandmadedrinkingwatersaferforpeople.AccordingtotheWorldBank,Chinaaccountsforabout30percentoftotal___67___(globe)fertilizerconsumption.TheChineseMinistryofAgriculturefindsthatbetween2023—whenthegovernment___68___(start)asoil-testingprogram___69__givesspecificfertilizerrecommendationstofarmers—and2023,fertilizerusedroppedby7.7milliontons.Thatpreventedtheemission(排放)of51.8milliontonsofcarbondioxide.China’sapproachtoprotectingitsenvironmentwhile___70___(feed)itscitizens“offersusefullessonsforagricultureandfoodpolicymakersworldwide,”saysthebank’sJuergenVoegele.hasgrowntheactuallytoimprovethanpollutionglobalstartedthat/whichfeeding第18頁【語篇解讀】本文是一篇說明文，主要講近年來中國根據(jù)人們膳食變化調(diào)整農(nóng)作物種植構(gòu)造，為全球生態(tài)環(huán)境保護(hù)做出了奉獻(xiàn)。

【解析】61.hasgrown?？疾闀r(shí)態(tài)和主謂一致。由時(shí)間狀語since2023可知此處要用目前完成時(shí)，又因主語thecountry是第三人稱，故此處填hasgrown。62.the。考查固定搭配中定冠詞。overthepast25years意為“在過去25年里”。63.actually?？疾樵~類轉(zhuǎn)換之形容詞變?yōu)楦痹~。修飾bebehindthechange用形容詞actual副詞形式actually。64.toimprove?？疾榉侵^語動(dòng)詞之動(dòng)詞不定式。此處表達(dá)“政府鼓勵(lì)農(nóng)民種植玉米而不是水稻來改善水質(zhì)”，故應(yīng)用不定式短語作目標(biāo)狀語。65.than。考查介詞。由句中比較級(jí)less可知，此處將玉米和水稻進(jìn)行比較，故填than。第19頁【解析】66.pollution?？疾樵~類轉(zhuǎn)換之動(dòng)詞變?yōu)槊~。decrease意為“減少，減少”，后接名詞作賓語，故填pollute名詞形式pollution。67.global?？疾樵~類轉(zhuǎn)換之名詞變?yōu)樾稳菰~。空格后是名詞短語fertilizerconsumption，故此處應(yīng)填一種形容詞，名詞globe形容詞形式是global。68.started?？疾闀r(shí)態(tài)。由between2023…and2023可知事情發(fā)生在過去，應(yīng)用一般過去時(shí)，故填start過去式started。69.that/which?？疾橐龑?dǎo)定語從句關(guān)系詞。分析句子構(gòu)造可知，所填詞引導(dǎo)定語從句,修飾指物asoil-testingprogram且在從句中作主語，故用that或which。70.feeding?？疾榉侵^語動(dòng)詞之目前分詞。邏輯主語China與feed是積極關(guān)系，因此用“連詞+目前分詞”形式作狀語。第20頁（三）2023全國卷Ⅲ語法填空第21頁I’mnotsure___61___ismorefrightened,meorthefemalegorilla(大猩猩)thatsuddenlyappearsoutofnowhere.I’mwalkingonapathintheforestintheCentralAfricanRepublic.Unexpectedly,I’mface-to-facewiththegorilla,whobeginsscreamingat___62___topofherlungs.Thatmakesherbabyscream,andthena400-poundmaleappears.Hescreamsthe___63___(loud)ofall.Thenoiseshakesthetreesasthemalebeatshischestandchargestowardme.Iquicklylowermyself,duckingmyheadtoavoid___64___(look)directlyintohiseyessohedoesn’tfeel___65___(challenge).MynameisMireyaMayor.I’ma___66___(science)whostudiesanimalssuchasapesandmonkeys.Iwassearching___67___thesethreewesternlowlandgorillasI’dbeenobserving.Noonehadseenthemforhours,andmycolleaguesandIwereworried.WhenthegorillasandIfrightenedeachother,Iwasjustgladtofind___68___(they)alive.Truetoagorilla’sunaggressivenature,thehugeanimal___69___(mean)menorealharm.Hewasjustsaying,“I’mkingofthisforest,andhereisyourreminder!”O(jiān)ncehismessage