外研版（2019） 选择性必修第一册 Unit 3 Faster Higher Stronger复习课件

XB1UNIT3Faster,higher,stronger期末复习过语法动词­ing作主语1.-ing做主语，谓语用单数

被动形式为beingdone-ing的否定形式not+-ing

Drinkingalotofwaterisgoodforyou.GoingtoHangzhoubytraintakesabout16hoursfromhere.

Doingexerciseisagoodwaytoloseweight.

Beingpraisedbyhisteachersmadehimregaintheconfidence.

Notmakingenoughpreparationsinadvanceusuallycausesalotoftrouble.过语法1.Itisnogoodeatingtoomuchsweetfood.2.Itisawasteoftimesittingherewithoutdoinganything.常用-ing形式作主语的句型有：It‘sawasteoftimedoing做某事是浪费时间的Itis/wasnoneed/good/use/fundoing

做某事是没必要/没用的/没有意思的Itis/wasworth/worthwhile/uselessdoing

做某事是值得的/没用的Thereisnodoing(denying/knowing/joking)...

无法做某事;不允许做某事过语法动词­ing的复合结构作主语1.Hisreturningbacktoworkisagreathelptous.2.It'snouseMary'spretendingthatshedidn'tknowtherules.形容词性物主代词/名词所有格＋动词­ing”构成，过语法动词­ing形式和todo作主语的区别1.Swimmingisoneofmyfavouritesports.2.Toswiminthislakeisverydangerous.­ing形式作主语表示一般的、非一次的、抽象的、泛指的动作.(习惯性的)todo作主语常表示具体的、某一次的、特定的动作。过语法1．It'snouse

(wait)here.Let'swalkhome.2．Swimmingwithdolphins

(be)oneoftheworld'smostprofitabletouristactivities.3.

(read)thisarticlewillmakemethinkofmyhometown.4．

(ask)awoman'sageisimpoliteinmycountry.5．

(ask)bytheteachertoleavetheclassroommadehimfeelashamed.6.Thereisno

(say)whetherthesingingcontestwillbeputoffornot.7.Ithinkitnouse

(wait)hereanymore，forhemaynotcomehere.waitingisToreadAskingBeingaskedsayingwaiting过语法seeingisbelieving.Toseeistobelieve.Forgivingothe