U20OnemaninaboatListeningandUnderstandingFishingismyfavoritesport.Ioftenfishforhourswithoutcatchinganything.Butthisdoesnotworryme.ListeningandUnderstandingSomefishermanareunlucky.Insteadofcatchingfish,theycatcholdbootsandrubbish.ListeningandUnderstandingIamevenlesslucky.Inevercatchanything–notevenoldboots.Afterhavingspentwholemorningsontheriver,Ialwaysgohomewithanemptybag.ListeningandUnderstanding‘Youmustgiveupfishing!’myfriendssay.‘It’sawasteoftime.’Buttheydon’trealizeoneimportantthing.I’mnotreallyinterestedinfishing.Iamonlyinterestedinsittinginaboatanddoingnothingatall!GuidedConversationNo,itdoesn’t.Yes,Ido.No,theyaren’t.Yes,they,are.Oldbootsandrubbish.BecauseInevercatchanything.Ontheriver.Withanemptybag.Giveupfishing.It’sawasteoftime.Oneimportantthing.Sittinginaboatanddoingnothingatall.GuidedConversationFishingisthewriter’sfavoritesport.Someunluckyfishermencatcholdbootsandrubbish.Thewriterisnotsolucky.Henevercatchesanything.Heisnotreallyinterestedinfishing.Sittinginaboatanddoingnothingatallistheonlythingthatinterestshim.PatternPracticebekeenongiveupwithoutCongratulationssb.ondoingsth.KeyStructuresa動名詞可作名詞使用，直接作句子主語，不定式也能夠作句子主語，不過通慣用it做形式主語

Drivingfastisdangerous.Itisdangeroustodrivefast.Todrivefastisdangerous.(少見)b緊跟在介詞后動詞必須用動名詞形式，比如：

He’skeenoncycling.She’safraidofstayinglateintheshop.KeyStructurescⅠ注意without,after,before+動名詞使用方法，比如：Heleftwithoutpaying.Ⅱ比較：Imustapologizeforinterruptingyou(此刻)/havinginterruptedyou.(之前)再比較：Afterlooking/havinglookedathiswatch,hehurriedaway.這里兩種形式沒有區分，因為這兩個動作有顯著先后。現在，請比較:Hecongratulatedmeonwinning/havingwonthecompetition.這里doing和havingdone兩種形式含義稍有區分，用winning表示前后兩個事情銜接比較緊密，而用havingwon表示前后兩個事情間隔較長。Ⅲon+動名詞，比如：Onhearingthenews,shefainted.=Whensheheardthenew