I'mLiYapingfromTaiwan．WhenIwas8yearsold，myfathertookmeandmybrotheronapicnic．Onthatday，Ididsomethingwrong，andIwillneverforgetit．Itwasasunnyday．Iwasveryhappyandexcited．Whenwearrivedthere，myfathe

　　I'mLiYapingfromTaiwan．WhenIwas8yearsold，myfathertookmeandmybrotheronapicnic．Onthatday，Ididsomethingwrong，andIwillneverforgetit．

　　Itwasasunnyday．Iwasveryhappyandexcited．Whenwearrivedthere，myfatherwarnedmethattheriverwasverydangerousandmademepromise （承诺） nottowalkuptoit．ButIdidnotkeepmypromise．

　　IforgetwhyIwalkedintotheriver．MaybeIwascurious （好奇的）．Iwalkedintotheriver，andIfelldownbecausetheriverwasverydeep．Icouldnotswim．Icriedoutloudly，butnobodywasthere ①_____myyoungerbrother．

　　Irememberthatmyyoungerbrotherwasveryscaredanddidnotknow ②______hecoulddobecausehewasjust7yearsold．Hejumpedintotheriver，butthatjustmadethesituationworsebecausehewasevenshorterthanmeandhecouldnotswim，either．Bothofuscriedout．

　　幸运的是，有一位农夫正在那儿干活儿． Hefoundusandsavedmefirst．Atthattime，Icouldnolongerseemybrother．Icriedlouder，andIshoutedtothefarmer，"Pleasesavemybrother!"

　　Then，myfatherarrivedandstartedlookingformybrotherintheriver，too．Finally，theyfoundhimandtookhimtothehospital．Luckilymyyoungerbrotherisalive，orelseIcouldneverforgive （宽恕） myself．

　　根据短文内容，完成下列任务．

　　任务一：在文中空白处填写恰当的单词，使句子通顺、完整．

　　51．①___②___

　　任务二：根据短文内容填写恰当的词语，完成下列句子．

　　52．Thegirl'sbrotherjumpedintotherivertosaveher，___hewasshorterthanherandcouldn'tswim，___．

　　任务三：将文中画线句子分别翻译成汉语和英语．

　　53．___

　　54．___

　　任务四：请给短文拟一个恰当的标题．

　　55．___．