Unit 3 Discover useful structures 課件 【知識建構(gòu)+高效助教】高中英語人教版（2019）選擇性必修第一冊

Unit3DiscoverusefulstructuresThe-ingformasthesubject一、判斷以下動名詞作什么成分Eventhoughthesunisbrightlyshining,________whetheritismorningornight

isimpossible.________here

isquitedifficult,soapartfromtheSamiveryfewpeoplehaveeverseenSarek.Forhundredsofyears,__________afterreindeerwasawayoflifefortheSami._________insuchabeautifulandwildplacemakesmefeelblessedtobealive.GettingtellinglookingBeing動名詞作主語V-ingformassubject1二、動名詞的主謂一致問題Travelling______(be)agoodwaytorelax.Playingbasketball________(make)ourbodystrong.Listening,speaking,readingandwriting______(be)basicskillsofalanguage.are單個v-ing作主語，謂語動詞用___________;兩個或兩個以上表達不同意義的v-ing作主語，謂語用___________;單數(shù)復數(shù)ismakes三、常見形式主語it句型——it指代動名詞作主語將下列句子改成形式主語it引導的句子1.Playingvideogamesisawasteoftime.2.Complainingwithouttakingactionisnouse.

【總結(jié)】常見句型有：Itbeawasteoftimedoing 做……是浪費時間的Itbenogood/usedoing 做……是沒用處的Itbeworthwhile/worthdoing 做……是值得的Itbefundoing 做…是有趣的Itbeuselessdoing

做….是沒用的Itisawasteoftimeplayingvideogames.Itisnousecomplainingwithouttakingaction.Observeanddiscover21.說服他加入我們就是在浪費時間。2.在這兒等是沒用的,我們走吧。3.在教育上花錢是值得的。It'sawasteoftimepersuadinghimtojoinus.Itisworthwhilespendingmoneyoneducation.It’snousewaitinghere.Let’sgo.四、動詞-ing形式的復合結(jié)構(gòu)1.Hercomingtohelpencouragedallofus.2.Mary'sbeingillmadehermotherupset.【總結(jié)】動名詞的復合結(jié)構(gòu)分為兩種：_____________________和___________________。形容詞性物主代詞(his/my/our等)+動名詞名詞所有格+動名詞1)________________________inthemorningmadehimlateforclass.他早上起晚了，這導致他上課遲到了。2)Ihope__________________________________won’tcauseyoumuchtrouble.我希望我刮了(scratch)你的車不會給你帶來很多麻煩。3)_________________________________madeusalldelighted.你取得如此大的進步讓我們很開心。myscratchingyourcarHisgettinguplateYourmakingsuchgreatprogress【完成句子】五、

動名詞的時態(tài)語態(tài)1.________________(laugh)atwillhurtone’sself-esteem.2.______________(treat)unfairlymadehimannoyed.3.________________(learn)Englishforyearshelpsmecommunicatewithforeignerswithoutanydifficulty.【總結(jié)】表被動應用_____________結(jié)構(gòu)；表動作先發(fā)生、延續(xù)性用_________________結(jié)構(gòu)

BeinglaughedBeingtreatedHavinglearnedbeingdonehavingdone六、動名詞作主語與不定式作主語的區(qū)別1.Deliveringnewspapersishisjob.2.Todelivernewspapersishisjobtoday.3.Climbingmountainscanbehardwork.4.Toclimbthemountainswashardworkbutaswelookedaroundusweweresurprisedbytheview.【總結(jié)】動名詞作主語表示________________動作；不定式作主語表示_______________動作。

反復性的一次性的隨堂練習1）__________(Sing)ismyhobby,and_________(sing)onmyfriend’sbirthdaypartyismydream.2.Itisnoteasy___________(remember)somanywords.___________(memorize)10wordsatatimeismyusualpractice.SingingtosingingtorememberMemorizing【綜合練習】1.Itisnouse______________(advocate)suchalifeinaremotevillage.2.His______________(get)tothestationontimemadeeveryonesurprised.3.Becareful!__________(play)withfirenearthewoodwillbedangerous.4.Itisacknowledgedthatswimming_________(be)agoodsportinsummer.5.Itisawasteoftime________________(try)topersuadehimtogiveupcomputergames.6.Itisnecessaryforusstudents_________(help)eachotherintrouble.advocatinggettingPlayingistryingtohelp翻譯：1.眾所周知，生活沒有目標就像航行沒有指南針（compass）一樣。

2.毫無疑問，預留（setaside）一些時間來放松是很重要的。

3.在我看來，了解中國傳統(tǒng)文化有助于提高我們的文化自信（culturalconfidence）和民族自豪感(nationalpride)。Asweallknow,living(life)withoutanaimislikesailingwihtoutacompass.Thereisnodoubtthatsettingasidesometimetorelaxisofgreatimportance.Inmyopinion,learningabouttraditionalChinesecultureisofbenefittoimprovingourculturalconfidenceandnationalpride.4.總的來說，沿著古老的“絲綢之路（SilkRoad）”旅行是一次有趣且有意義的經(jīng)歷。

5.在這么多觀眾面前做演講（giveaspeech）對我來說是一次艱難的挑戰(zhàn)。

6.參加這個志愿者活動（volunteeringactivity）不僅豐富了(enrich)我們的校園生活，而且增長了我們的知識。Generallyspeaking,travelingalongtheancientSilkRoadisaninterestingandrewardingexperience.Givingaspeech

infrontofsuchagreatnumberofaudienceisadifficultchallenge.Takingpartinthisvolunteeringactivitynotonlyenrichesourcampuslifebutalsoincrea