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...
