Unit3FasterHigherStrongerUsinglanguageving作主语课件高中英语人教版选择性

Unit3Fasterhigher,stronger

Grammar:V-ingastheSubject(动词-ing形式作主语)1.

bringsusintodifferentworld.(看电影)watchingmovies2.

isagoodwaytorelax.(旅游)Travelling3.

(做瑜伽)isawaytokeepfit.Doingyoga

4.

makesourbodystrong.(打篮球)Playingbasketball1.watchingmovies

bringsusintodifferentworld.2.Travelling

isagoodwaytorelax.3.Doing

yoga

isawaytokeepfit.4.Playingbasketball

makesourbodystrong.总结：-ing形式通常置于句首作_____语；谓语动词通常用_____形式。主单数1.动词-ing做主语的意义动词-ing形式作主语，常用来表示经常性或习惯性的动作且通常放在句首。

钓鱼是我的爱好。

Fishingismypleasure.

从这乘火车去杭州大约需要10小时。Going

toHangZhoubytraintakesabout10hoursfromhere.

Activity1:a

Knowingwheretheballwouldgowasn’teasy.b

Shootingwithgreataccuracywasanotherthinghelearnt.c

PractisingdayinanddayouthelpedStephensharpenhisskills.d

Playingbasketball

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

Tryingpersuadingsuchapersonawasteoftime.isItisawasteoftimetryingpersuadingsuchaperson.形式主语真正主语总结：-ing作主语的句子可以转化成为用it作形式主语的句子。nouse/nogooddoing做...无用useless/worth/worthwhile/awasteoftimedoing

做...是无用的/值得的/浪费时间的Itis/was+意义：动词v-ing作主语，且主语较长时，为了平衡句子结构，通常用It作形式主语。常见It作形式主语的句式。Eatingtoomuchsweetfoodisnotgood.Itisnogood

eatingtoomuchsweetfood.

3.v-ing和todo作主语的区别Playingfootballranksfirstinboys’after-classactivities.Sotolearntoplayfootballtodayseemsveryexcitingtothem.总结：-ing和todo都可以做主语，但-ing做主语表示泛指的或抽象行为；todo表示某次具体的或一次性行为。踢足球在男孩子的课外活动中排第一，所以今天学习踢足球对他们来说似乎很兴奋。-ingassubjectRewritetheunderlinedsentenceswiththe-ingformassubject.Activity2-ingassubjectCompletethepass