Myhometownusedtolooknice.Peoplethere(71)l_____aquietlife.Althoughpeopledidn’thavemuch(72)m_____,theylivedhappily.Thewaterintheriverwas(73)c_____.AtthattimeIoftenwentfishingwithmyfriends.Andthereweremanytreesonthemountains.In(74)a_____,therewasalotoffruitonthetrees.Wecouldeatasmuchasweliked.Afewyearslater,aroadwas(75)b_____throughmyhometown.Moreandmorecarspassedby.Thenpeoplebeganto(76)c____downtreesandbuildfactories.

　　Nowpeoplearemuchricherthantheywereinthepast.Butthepollutionisgettingmore(77)s_____daybyday.Lotsoffishintheriverdieandnowthereare(78)f____treesonthemountains.(79)L______,peopletherehaverealizedthatthereisapollutionproblem.Theyare(80)t_____tomakethevillagebetter.IhopemyhometowncanbecomeasniceasitwaswhenIwasachild.

　　答案：

　　71.lived72.money73.clean74.autumn75.built

　　76.cut77.serious78.few79.Luckily80.trying