19.A20.C\rSectionB\rReadingSkills\rI.\r1.Yes.Inthesensethat“thestructureoffamilylifeisundergoingextremechanges”.\r2.Theyareaboutmarriages,parents,unmarriedmothersandchildreninsingle-parenthouseholds.\r3.Itsayswomentendtoworklongerhoursthanmenbothathomeandonthejob.\r4.Itwillbeonetoillustratewhygettingajobisnolongeroptionalforwomen.\r5.Fathers'incomeusuallyexceedsmothers'income,butitiswomenwhousuallycontributea\rlargerproportionoftheirincometotheirfamily.\rComprehensionoftheText\rIL\r1.C2.C3.B4.A5.B6.C7.B8,A\rVocabulary\rIII.\r1.undergo2.released3.concludes4.overtaking5.maintain\r6.contribute7.vary8.adequate9.optional10.migrate\rExercisesonWebcourseonly:\r11.rare12.urgent13.prime14.agenda15.dissolved\rIV.\r1.on/upon2.about3.to4.to5.for\r6.to7.in8.to9.as10.by\rExercisesonWebcourseonly:\r11.by
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