阅读理解；阅读下面四篇语言材料，然后按文后要求做题。

Maryisalovelyquietgirl.Whenshewasalittlegirlshehadnosecretsfromhermotherwhowasverypleasedwithher.Butsincelastyearshehasbecomealittlemysteriousandnotasopenasbefore.Shewantsheart-to-hearttalksbetweenmotheranddaughter.Buttheyneverhappen.Andagulfopensbetweenthem.HermotherwondersifshefallsinloveIt'stooearlyforagirlofherage.Afterallsheisreachingthe"dangerousstage".Thesethoughtshavecausedtroubleinthemother'smind.

Oneweekendherdaughtercametotellhermotherthatshewasgoingtothecinemawithherclassmatesandwouldreturnlate.Thiswasthefirsttimehermotheragreedandshebegantoworrybecauseherdaughterhadneverbeenawayatnightbefore.Themotherwaiteduntilnineandcouldn'tfallasleep.Thenshedecidedtogoouttomeetherdaughter.Justatthatmomentsheheardthenoiseofacarandhurriedtothewindow---therewasherdaughterwavinggood-byetoaboy.Herheartmissed abeat.WhenthedaughtercameinthemotherwaswatchingTVpretending(假装)nothinghappened."MumI'mback.""Yeah""Sorrytobelate."

Thedaughtersaidnothingaboutthefilmandtheboy.Themotherreallywouldliketoknowsomethingaboutthem"Whoisthatboy?"Daughterwasstunned(发愣)foramoment"Ahit'smymonitor. Hegavemealiftonhiswayhome. MumI'mgoingtobed."Thedaughteransweredincarefulwords."Allright.Gotosleepearly."

Thenextmorningwhenthemotherwenttoherdaughter'sroomtodosometidyingshefoundherdiaryleftonherbed.Afterafewminutes'hesitation(犹豫)sheopenedittotherightpage.Itreads"Mumit'slovethatmadeyouaskbutitwould showyourunderstandingofmeifyouhadn't."

Holdingthediarythemotherfellintothought.

( )1.Whydidthemotherfeelherheartmissabeat?

A.Becauseshehadanillness.

B.Becauseherdaughtercamebackwithaboy

C.Becauseitwastoolate.

D.Becausetherewassomethingwrongwithherheart.

( )2.Whywasthemotherworried?

A.Themotherwasmuchworriedaboutherdaughter'scomingbacklate.

B.Themotherfeltworriedaboutherdaughter