Therewasayoungboy，borninapoorfamily．Oncehewasaskedbyhisteachertowriteapaperaboutwhathewantedtobeanddowhenhegrewup．Thatnighthewroteaseven-pagepaperdescribinghisgoalofowningahorseranch （养马场）．Hewroteabouthisdreamingreatdetailandheevendrewapictureofa200-acre（英亩） ranchonthepaper．Thenextdayhegaveittotheteacher．Twodayslaterhegothispaperback．Onthefrontpagewasalargered"F"withanotethatread，"Seemeafterclass．"

Theboywiththedreamwenttoseetheteacherafterclassandasked，"WhydidIgetan‘F'？""Yourdreamwillnevercometrue．Youcomefromapoorfamily，"theteachersaid．"Ifyourewriteyourpaper，Iwillreconsideryourgrade．"

Theboywenthomeandthoughtaboutithard．Heaskedhisfatherwhatheshoulddo．Hisfathersaid，"Youhavetomakeupyourownmindonthis．Ithinkitisaveryimportantdecisionforyou．"

Finally，theboyhandedinthesamepaper，makingnochangesatall．Hesaid，"Youcankeepthe'F'andI'llkeepmydream．"

Twentyyearspassed．Theyoungmanhada200-acrehorseranchofhisown．

Don'tletanyonestealyourdream．

根据材料内容选择最佳答案，并将其标号填入题前括号内．

46．What'stheyoungboy'sdream？___

A．Tohavedreams．

B．Toownmanybighouses．

C．Tobeanartist．

D．Tohaveahorseranch．

47．Theyoungboygotan"F"onhispaperbecause___．

A．hisdreamcouldn'tcometrue

B．hedidn'tdescribehisdreamindetail

C．theteacherdidn'tthinkhisdreamcouldcometrue

D．theteacherthoughthewastoonaughty

48．Whatdidtheyoungboy'sfatherthinkofhisproblem？___

A．Hisfatherthoughthisdreamcouldcometrue．

B．Hisfatherthoughtheshould'makethedecisionbyhimself．

C．Hisfatherdidn'tthinkhisdreamcouldcometrue．

D．Hisfatherdidn'tsayanythingusefultohim．

49．Accordingtothepassage，theyoungboy atlast．___

A，didn'tachievehisdream

B．becamepoorer

C．hadasmallhouse

D．achievedhisdream

50．Whatisthepassagemainlytellingus？___

A．Apers