完形填空。（每小题2分，共20分）
根据短文内容，从A、B、C、D四个选项中选出一个能正确填入相应空格内的最佳答案，并把答题卡上对应题目的答案标号涂黑。
Whydowetakeschooltrips?Schooltripsareagreatchancetolearnoutsidetheclassroom      41      newandinterestingways.Forexample,onatriptoafarm,wecansee  42          ofthethingswe       43     aboutsofarinbiologylessons.While  44       science
museums,wecanseescienceinaction.
Wherecanwegoonaschooltrip?InJapan,cherry(樱花)treesareblossoming(开花)bythebeginningoftheyearforstudentstotakeschooltrips.Schoolchildrenhavepicniclunches,singsongsanddanceunderthetrees.They      45    goboatingandhikingaroundthelakesandhills.Somekidseventakebathsinhotsprings.Ifthereis    46     ,don’tworry.Theywillgotoamuseum    47     .
InChina,studentsoftentakeschool  48     toparks,museumsortovisitamountain.Butnowadaysit’sverypopulartotakeanoutwardbound(野外拓展)trip. Studentscanlearnaboutsurvivalskills.(生存技能)
IntheUK,studentsgotomanyinterestingplaces.They    49     shells(贝壳)ontheseaside.Kidsmayalsolearnabout     50        whentheygotoacastle(城堡)orafamousoldhome.
小题1:.