导航 Ⅱ.重点短语 I.insist 坚决要求 2.commit to(sth/doing sth/do sth)承诺；保证（做 某事、遵守协议或安排等) 3.come power(开始)掌权；上台 4.take a position担任；任职 5.sum 总结；概括
导航 Ⅱ.重点短语 1.insist on 坚决要求 2.commit oneself to (sth/doing sth/do sth) 承诺;保证(做 某事、遵守协议或安排等) 3.come to power (开始)掌权;上台 4.take up a position 担任;任职 5.sum up 总结;概括
导航 Ⅲ重点句型 L.wherei引导非限制性定语从句 In the beginning,Tu Youyou went to Hainan, to study malaria patients. 起初，屠呦呦奔赴疟疾更为常见的海南研究疟疾患者
导航 Ⅲ.重点句型 1.where引导非限制性定语从句 In the beginning,Tu Youyou went to Hainan, where malaria was more common ,to study malaria patients. 起初,屠呦呦奔赴疟疾更为常见的海南研究疟疾患者