新概念英语第四册答案新概念英语第四册答案篇一：新概念英语第四册课后题答案】bdaacablesson2bcbdcacaadbclesson3cabdacdabacdlesson4accabbcdaabdlesson5cababdacbbddlesson6cacccaaadbaalesson7dcababacdaaclesson8bdabdbaabcbclesson9cdbaacabacadlesson10caabdcbbdcaalesson11aabdddaddbddlesson12cabaccdacaablesson13acdacbdabcadlesson14dbdccaccbdbdlesson15cadcddbacacalesson16abccaddbabaclesson17bbadabbdcdcalesson18babcdcdcccbalesson19bbcadaabddbclesson20bcadcccbdbcaaaddabcalesson22cdacbadbcdablesson23cadccdcabcaclesson24aaccbcaddacdlesson25dbaddcacdbcalesson26cbcbacddabaclesson27bcdccaccdddalesson28adcdabcadabdlesson29ccaddccadabclesson30cabddbccacdclesson31aabadbaddcbdlesson32bdcbadbdcabclesson33bdbadbccdcbalesson34dcacbdacdbcalesson35cbcacabbdccdlesson36acbccaccdbaclesson37cabacdbcdcbdlesson38caabbacbddablesson39bcadabddbdbclesson40dcdacadddadblesson41acacdcbbbdbclesson42bccbdbdadcaclesson43dbabccddacbblesson44aaaabbbbdcbalesson45cadaccacdcdclesson46bbdbdabcdabdlesson47caadbcacdbbclesson48ccbccccdbaab【篇二：新概念英语第四册课后习题及答案】xt>lesson1insomepartoftheworldpeoplearestillb__towriteaincapablebimpotentcenabledunabletheycanpreservetheirhistoryd_downlegendsabyhandbbyhandingctohanddinhand7thea__whytheselegendsareusefulisthattheytellusaboutmigrationsacausebeffectcwhydreason8therewerent___a___ofthenwhocouldwritedownwhattheydid.aanybnonecnoonednolesson2itwoulda__impossibleforustoliveinthisworldifinsectshadnoenemies.amakeitbstaycbedhaveitweowe__ctothebirdsandbeastwhoeatinsects.aagreatdealbalotofcagreatmanydmuchofhowmanyspidersareinvolveda_thisworkonourbehalfaatbforcindtotherearemanydifferent___a___spidersasortofbkindofctypeofdkindslesson3earlierclimberslikedsummitsc__hadneverbeenclimbedbefore.awhichbwhichtheycthattheydunlesstheyd_singleaimwasgettingtothetopatheyrebtherectheirdtheirs7___a___zermattandchamonix,mostplaceswereunknown.aexceptbunlesscwithoutdapartfrom8b__weregenerallydirtyandflea-ridden.athefewinnsthatexistedbinnslikethiscsuchinnsdfewinnslesson4severalcaseshavebee...
