Unit3LifeinthefutureⅠ.单项填空1.John'sbrotherhasdeterminedto________farmingwhenhegraduatesfromuniversity,whichdissatisfieshispa...
Unit3Lifeinthefuture话题词汇1.civilizationn.文明2.milestonen.里程碑3.disastrousadj.灾难性的4.substitutev.取代5.innovativea...