Unit3FascinatingParksVing形式作主語課件高中英語人教版選擇性

動詞-ing形式（一）V-ing作主語Unit31.TomasterthebasicgrammarrulesofV-ingformasthesubject.(掌握V-ing形式做主語的基本語法規(guī)則。)2.Tounderstandthegrammarruleof“It”asformalsubject.（理解It作形式主語的語法規(guī)則。）3.動詞-ing的時態(tài)和語態(tài)4.Putwhathasbeentaughtintopractice.（把所學(xué)到的運用到實踐中去。）Learninggoals:Smoking抽煙,Parking停車,Spitting吐痰,Littering亂丟垃圾…Haveyoueverseenthesesigns?-ingformsStep1:LeadinStep2：Presentation&Explanation(展示點撥)Task1:完成下列練習(xí)并作出小結(jié)。

1.__________(sing)is

theirhobby.

2.__________(do）exerciseisthebestwaytoloseweight.

3.___________(fly)likebirdsistheirdream.

SingingDoingFlyingWhat’sincommon(共同點)?Singing

istheirhobby.Doingexercise

isthebestwaytoloseweight.Flyinglikebirds

istheirdream.小結(jié)：1.______不能作主語，_________可以作主語，往往表示經(jīng)常性、習(xí)慣性動作，謂語動詞用

。動詞V-ing形式單數(shù)注意1：動名詞v-ing和不定式todo都可以做主語，它們有什么區(qū)別嗎？

Deliveringnewspaperishisjob.送報紙是他的工作。Todelivernewspaperishisjobtoday.送報紙是他今天的工作。動名詞做主語表示一般的，抽象的行為.不定式做主語表示一次性的，具體的行為.注意2：兩個或兩個以上的動詞-ing短語作主語時，如果表示一件事，謂語動詞用單數(shù)；如果表示兩件或多件事情，謂語動詞用復(fù)數(shù)。

Goingtobedearlyandgettingupearly

goodforourhealth.

早起早睡對我們的健康有好處（早起早睡是一件事）ListeningtotheEnglishtapesandwatchingEnglishfilms______goodwaystolearnEnglish.

isare聽英文磁帶和看英文電影是學(xué)英語的好方法。It

isnouse_________(try)toescape.1.________(try)toescape(

逃跑)isnouse.TryingtryingTask2:模仿例子變換句型并作出小結(jié)：

例：2.________thefilmisworthwhile(值得的).Seeing____isworthwhile_______thefilm.Itseeing3.Playing

computergamesisawasteoftime.__

isawasteoftime________computergames.Itplaying4.Playing

withfriendsispleasant(愉快的).___ispleasant_________withfriends.ItplayingItisnousetryingtoescape.Itisworthwhileseeingthefilm.Itisawasteoftimeplayingcomputergames.Itispleasant

playing

withfriends.小結(jié)：用_____作形式主語，把真正的主語V-ing形式移置_______。What’sincommon(共同點)?it句尾Itisnouse/gooddoingsth.

做某事是沒有用處/好處的Itis/was

worthwhile

doingsth.做某事是值得的Itis/was

awasteoftime

doingsth.

做某事是浪費時間的Itispleasant/uselessdoingsth.…做某事是有樂趣/無用的ReadandMemorize:(讀&記憶)Itisnouse/gooddoingsth

做某事是_____/_____的Itis/was

worthwhile

doingsth.做某事是________的Itis/was

awasteoftime

doingsth.

做某事是______的Itispleasant/uselessdoingsth.做某事是___/___的Fillblanks:(填空)Itis

____/____doingsth

做某事是沒有用處/好處的Itis/was

_______

doing

做某事是值得的Itis/was

________doing

做某事是浪費時間的Itis____/_____doing…做某事是有樂趣/無用的Fillblanks:(填空)Step3動詞-ing的時態(tài)和語態(tài)1.構(gòu)成如下：(以do為例)主動形式

(do)被動形式

(bedone)一般式完成式否定形式doingbeingdonehavingdonehavingbeendonenotdoing2.動詞-ing的時態(tài)意義1）動詞-ing的一般式多用于表示一般情況，或所表示的動作通常與謂語動詞動作幾乎同時發(fā)生，或發(fā)生在謂語動詞動作之后。Ienjoylisteningtoclassicalmusic.Wehadagoodtimeindancingwiththem.Weareconsideringbuyinganewcar.一般情況同時稍后Jackwaspraisedforhavingdoneagooddeed.杰克因為做件好事而受到表揚。2）動詞-ing的完成式所表示的動作發(fā)生在謂語動詞動作之前。3.動詞-ing的語態(tài)動詞-ing的主動式表示的是它的邏輯主語是動作的執(zhí)行者。動詞-ing的被動式表示的是它的邏輯主語是動作的承受者。Heinsistedonsendinghertohospital.他堅持要送她去醫(yī)院Sorry,Ididn’tmeantolosemytemper.Ijustcan’tstandbeingmisunderstood.執(zhí)行者承受者對不起，我不是故意發(fā)脾氣的。我只是不能忍受被誤解。動詞-ing形式作主語表示經(jīng)常性或習(xí)慣性的動作且常放句首動詞-ing作主語It’sawastetimedoingsthIt’suseless/nouse/nogooddoingsthIt’snopleasuredoingsthit作形式主語動詞原形+-ing基本構(gòu)成基本用法動詞-ing與動詞不定式作主語的區(qū)別Summary小結(jié)Step4：Consolidation(鞏固達(dá)標(biāo))TimeforPractice1．

(read)inbedisbadforyoureyes.2.__________

(talk)withyourkidhearttoheartisveryimportant.3.Itisnouse________(regret)yourpastmistakes.4.Itisawasteoftime____________(play)videogames.5．Climbingmountains

(be)reallyfun.6．Itisnogood

(cry)overspiltmilk.

7.Ican'tstand

(work)withJaneinthesameoffice.8.It'snouse

(complain)withouttakingaction.9.(2019·全國卷Ⅱ)

(volunteer)justfeelssogood.10.____________(invite)tothepartywasagreathonourtothefamily.

11.Hisnot

(know)Englishbroughthimalotofinconvenience.

12.____________(win)thegoldmedalintheOlympicGamesmadeherfamousovernight.ExerciseIⅠ.單句語法填空ReadingTalkingregretting

playingiscryingworkingcomplainingVolunteeringBeinginvitedknowingHavingwonExerciseII漢譯英學(xué)習(xí)英語非常有趣。2.閱讀是擴大(enlarge)你的詞匯量的一個好方法。3.

在教育上多花錢是值得的.LearningEnglishisveryinteresting.

Itisworthwhilespendingmuchmoneyoneducation.Readingisagoodwaytoenlargeyourvocabulary.Step5：HomeworkItisnouse/gooddoingsth

____________Itis/was

worthwhile

doing____________Itis/was

awasteoftime

doing

____________Itispleasant/uselessdoing…____________1.默寫：_________________做……是沒有用處/好處的_________________做……是值得的_________________做……是浪費時間的_________________做……是有樂趣/無用的1.默寫：2.金版巧學(xué)活用——用所給動詞的適當(dāng)形式填空/補全句子①________(learn)tothinkcriticallyisanimportantskilltoday’schildrenwillneedforthefuture.②________(learn)Englishasasecondlanguagecanbeapainfulexperience.③It’sawasteoftime______(try)topersuadesuchaperson.④It’snouse___________(complain)withouttakingaction.⑤____________________(未能通過考試)madehimveryupset.⑥____________________(他又一次遲到)madehisteacherveryangry.3.維度一單句語法填空1．Whatweallknowisthatit’sawasteoftime_______(play)computergames.2．_____(lie)onthebeachinsummerreallymakesyouf