Unit 3 Discover useful structures （ppt课件）(4)-2022新人教版（2019）《高中英语》选择性必修第一册.pptx

1、 Unit 3 FASCINATING PARKS Discover useful structuresThe-ing form as the subject选择性必修选择性必修 第一册第一册The-ing form:动名词动名词现在分词现在分词V-ing 形式形式1.Families celebrating the Chinese New Year can enjoy exciting dragon dances and carnivals together.The performances are just amazing.2.The new Peoples Republic of Chi

2、na saw Dr Lin Qiaozhi playing a key role.3.Thinking of all the people still in need of help,Dr Lin opened a private clinic.4.She was known as the mother of ten thousand babies,having delivered over 50,000 babies in her lifetime.What are the functions of the ing form in the sentences?定语表语宾语补足语状语状语定语时

3、态时态 /语态语态主动主动语态语态被动语态被动语态复合复合结构结构否定式否定式V-ing一般式一般式doingbeing donesb/sbs doingsb/sbs not doingsb/sbs not having done完成式完成式having donehaving been done句子句子成分成分主语主语表语表语宾语宾语宾补宾补定语定语状语状语V-ing动动名名词词现现在在分分词词 can bring you into different world.(参观主题公园)Visiting theme parks Lead inLead in is a good way to rela

4、x.(旅游)Travelling makes me happy.(打篮球)Playing basketballLaughing at others(嘲笑他人)is impolite.(成为科比那样的篮球运动员)_has been my life goal.Becoming a basketball playerlike Kobe0203040506Going to the Cambridge University is my dream.Playing basketball makes me happy.Laughing at others is impolite.Being a basket

5、ball player like Kobe has been my life goal.subject01Visiting theme parks can bring you into different world.Travelling is a good way to relax.-ing形式作形式作主语主语，相当于一个，相当于一个名词名词,多指多指抽象抽象、概念性概念性的动作，的动作，经常性经常性或或习惯性习惯性行为。行为。主主谓谓一一致致Playing basketball （make)me happy.Laughing at others impolite.Watching TV a

6、nd reading books _ interesting.Listening,speaking,reading and writing _ basic skills of a language.areare单个v-ing作主语，谓语动词用_；两个或两个以上表达不同意义的v-ing作主语，谓语动词常用_.单数复数Observe and discover1makesisV-ing 和 to do 作主语的区别Singing is my hobby,and to sing at my friends birthday party is my dream.Playing with fire is

7、dangerous.Be careful!To play with fire will be dangerous.V-ing 形式和 to do 不定式都可以作主语，但 v-ing 通常表示 _ 动作或行为；而 to do 不定式通常表示_ 动作或意义。习惯性，经常性某次具体Observe and discover2Playing video games is a waste of time.It isa waste of time形式主语真正主语It is a waste of time playing video games.playing video games.Observe and

8、discover3V-ing 形式作主语时常后置,用it作形式主语。3.it在句首作形式主语，动词-ing形式后置作真正的主语，用形容词或名词作表语，如useful，useless,good,fun,no use,worthwhile等。形式主语it代替动词-ing形式作主语的常见句型:(1)It is a waste of+time/money+doing sth.做某事是浪费时间/金钱。(2)It is no+use/good/fun+doing sth.做某事没有用/没有好处/不好玩。(3)It is useless/worthwhile.+doing sth.做某事是没有用的/值得的(

9、4)It is/was hardly/scarcely worth doing 做不值得3.3.在在there be结构中作主语结构中作主语，常见句型有：，常见句型有：(1)There is/was no point(意义)doing干无意义(2)There is no sense in doing 做没有道理(3)There is/was no use doing 干无意义(4)There is/was nothing worse than doing 没有比更糟的(5)There is no doing.无法;不允许Think about it!His coming made me exc

10、ited.Think about it!The presidents attendingthe graduation ceremony himself gave them a big surprise.His coming made me excited.The presidents attending the graduation ceremony gave them a big surprise.B当动名词作主语时，其逻辑主语由_ 或者 _ 构成。形容词性物主代词名词所有格Her coming late made the boss angry._Toms being so careless

11、 caused so much trouble.她的迟到使得老板很生气。汤姆这么粗心，引来了不少麻烦。AObserve and discover4动词-ing的复合结构作主语 Fill in each blank using the-ing form of a verb from the box and state its function.One word will be used bine cover grow take limit walk experience Xixi National Wetland Perk,_ 10 square kilometres In western Ha

12、ngzhou,Is the first national wetland park in China._ city life,nature,and wetlands makes the park a popular destination both for tourists and local residents.At Xlxi._ a boat lour,_ along paths,and _ local customs and traditions of the villages in this park are at the top of the list of peoples favo

13、urite activities.With trees,bushes,and colourful flowers _ along the riversides,the perk shows different sides of beauty in different seasons.covering(attribute)Combining(subject)taking(subject)walking(subject)experiencing(subject)growing(attribute)Fill in each blank using the-ing form of a verb fro

14、m the box and state its function.One word will be used bine cover grow take limit walk experience In order to better develop as well as preserve this place,_ human impact on Xixi Wetland was considered by the park designers.All the now buildings were designed in a traditional way to fit into the natural environment.This green,watery world is home to many birds and fishes.With trees _ in the shallows,the wetland is a natural system for providing clean water and producing oxygen,which makes it the“green lungs of Hangzhou”.growing(attribute)limiting(subject)Thanks!