人教版（2019）選擇性必修第二冊 Unit 5 First Aid Learning About Language v-ing作主語課件

Unit3Fasterhigher,stronger

Grammar:V-ingastheSubject(動詞-ing形式作主語)1.

bringsusintodifferentworld.(看電影)watchingmovies2.

isagoodwaytorelax.(旅游)Travelling3.

(做瑜伽)isawaytokeepfit.Doingyoga

4.

makesourbodystrong.(打籃球)Playingbasketball1.watchingmovies

bringsusintodifferentworld.2.Travelling

isagoodwaytorelax.3.Doing

yoga

isawaytokeepfit.4.Playingbasketball

makesourbodystrong.總結(jié)：-ing形式通常置于句首作_____語；謂語動詞通常用_____形式。主單數(shù)1.動詞-ing做主語的意義動詞-ing形式作主語，常用來表示經(jīng)常性或習慣性的動作且通常放在句首。

釣魚是我的愛好。

Fishingismypleasure.

從這乘火車去杭州大約需要10小時。Going

toHangZhoubytraintakesabout10hoursfromhere.

Activity1:a

Knowingwheretheballwouldgowasn’teasy.b

Shootingwithgreataccuracywasanotherthinghelearnt.c

PractisingdayinanddayouthelpedStephensharpenhisskills.d

Playingbasketball

washisdream.Findmoresentenceswiththe-ingformasthesubjectinthepassage.2.-ing作主語VSIt作形式主語

Tryingpersuadingsuchapersonawasteoftime.isItisawasteoftimetryingpersuadingsuchaperson.形式主語真正主語總結(jié)：-ing作主語的句子可以轉(zhuǎn)化成為用it作形式主語的句子。nouse/nogooddoing做...無用useless/worth/worthwhile/awasteoftimedoing

做...是無用的/值得的/浪費時間的Itis/was+意義：動詞v-ing作主語，且主語較長時，為了平衡句子結(jié)構(gòu)，通常用It作形式主語。常見It作形式主語的句式。Eatingtoomuchsweetfoodisnotgood.Itisnogood

eatingtoomuchsweetfood.

3.v-ing和todo作主語的區(qū)別Playingfootballranksfirstinboys’after-classactivities.Sotolearntoplayfootballtodayseemsveryexcitingtothem.總結(jié)：-ing和todo都可以做主語，但-ing做主語表示泛指的或抽象行為；todo表示某次具體的或一次性行為。踢足球在男孩子的課外活動中排第一，所以今天學習踢足球?qū)λ麄儊碚f似乎很興奮。-ingassubjectRewritetheunderlinedsentenceswiththe-ingformassubject.Activity21Gettingtangledupwithsomeothercompetitorsmadeherfall.2Buttryingtopulltheshoebackoncostherprecioustime.3Throwinghershoeawaymeantshecouldgetupquicklyandfightforherpositionintherace.4Runningtherestoftheracewithjustoneshoeonandherrightfootbareraisedabigcheerforher.5Losingashoedidn’tkeepherfromtakingpart.-ingassubje