1、选择性必修一选择性必修一unit1unit1重点单词小结重点单词小结1.vital adj.必不可少的；极其重要的；充满生机的【词块】be of vital importance 是至关重要的 be vital to/for 对极为重要的It is vital to do 做很重要。It is vital that（should）do sth.做某事是十分重要的。Understanding history is vital to understanding ourselves as a people and as a nation.了解历史对于了解我们自己作为一个民族和国家是至关重要的。mit
2、（1）ct.承诺；保证 vi.忠于；全心全意投入（工作、活动等）【词块】commit oneself to（sth/doing sth/do sth）承诺；保证（做某事、遵守协议或安排等）（2）vt.犯（错误、罪行）commit a crime 犯罪commit an error 犯错误拓展：committed adj.尽心尽力的；坚定的；坚信的 commitment n.承诺 make a commitment to do sth 承诺（做）某事Borrowers should think carefully before committing themselves to take out
3、a loan.借款人在承诺贷款之前应该仔细考虑。3.acknowledge vt.承认（属实、权威等）；（公开）感谢；告知收到；认为【词块】acknowledge sb/sth as/to be 认为是 acknowledge doing/that 承认做过/承认It is universally/generally acknowledged that是大家公认的。Many of the poor acknowledged him as their spiritual leader.许多贫苦人都把他视为他们的精神领袖。He acknowledges that when hes tired he
4、 gets bad-tempered.他承认自己累的时候爱发脾气。4.defeat n.失败；挫败 ot.击败；战胜【辨析】defeat n.失败；挫败 ot.击败；战胜（强调过程和结果，既可指比赛中，也可指战场上，宾语是对手）beat vt.打败；（连续）击打（侧重于比赛，宾语是对手）win zt.赢得；获胜（宾语是game或prize等）They hoped to defeat/beat the enemy at sea.他们希望在海上击败敌人。How does it feel to have won the gold medal？获得金牌的感觉如何？5.apparently adro.显
5、而易见；看来；显然拓展：apparent adj.明显的；表面的；看起来It is apparent that 很显然It is apparent to sb that 在某人看来很明显It was apparent to everyone that he was seriously ill.所有人都明白他病得很厉害。6.insist vi.&ot.坚持；坚决要求何（1）表示“坚持；坚决要求”时，从句要用虚拟语气，即从句的谓语用“should动词原形”，should可以省略。在（2）表示“坚持认为；坚持说”时，从句用陈述语气。（3）insist on/upon doing坚持做；坚决做They
6、 insisted that everyone should cometo the party.他们坚持每个人都应该参加宴会。His friends insisted that he had no connection with drugs.他的朋友坚持说他和毒品无关。He insisted on checking everything himself.他坚持要亲自检查一切。7.conclusion n.结论；推论【词块】draw/make/come to/arrive at/reach a conclusion得出结论jump to conclusions 匆忙下结论bring to a c
7、onclusion使结束in conclusion总之；最后拓展：conclude v.断定；得出结论；（使）结束，终止conclude with 以结束In conclusion,Id like to thank you for all youve done for me.最后，我要感谢你为我所做的一切。8.flee vi.&vt.（fled，fled）迅速离开；逃跑【词块】flee from 从逃跑；逃离flee to/into逃到The customers fled from the bank when the alarm sounded.警铃响起，顾客纷纷从银行逃离。9.circums
8、tance n.【usually pl.】条件；环境；状况【词块】in/under the circumstances在这种情况下；既然如此决不；无论如in/under no circumstances 何都不（位于句首时，用部分倒装结构）In/Under the circumstances,it seemed better not to tell him about the accident.在这种情况下，不告诉他有关这次事故的情况似乎更好。My teacher always reminds me that under no circumstances should I abandon my
9、 learning goals once I set them.我的老师总是提醒我，一旦我设定了学习目标，在任何情况下都不应该放弃。10.consequence n.结果；后果【词块】as a consequence=as a result=in consequence 因此，结果as a consequence of=as a result of=in consequence of 由于的缘故take/suffer/bear the consequences of.承担的后果拓展：consequently adv.因此；所以；结果He was always diligent in his s
10、tudy and as a consequence received high marks.他一向用功学习，因而得的分数很高。I am forced to dismiss you in consequence of/as a consequence of your laziness and rudeness.由于你的懒惰和粗鲁，我不得不解雇你。We must take the consequences of our own deed.我们必须承担我们自己行为的后果。e to power（开始）掌权；上台拓展：beyond ones power 力所不及；不能胜任in/within ones p
11、ower 在某人能力范围内in power当权have/hold power over sth/sb对某事/某人有控制权1.The party came to power at the lastelection.这个政党是在上次大选中当选执政的。2.He has been in power for ten years butstill doesnt want to leave office.他已经掌权10年了，但是仍然不想离开这个职位。12.sum（1）vi.总结；概括【词块】sum up 总结；概括His speech summed up the present situation of the economy.他的演讲概述了目前的经济形势。（2）n.金额；款项；总数；总和【词块】the sum of的总和/总额a large/small sum of money一大笔钱/少量的钱Thank you for lietening!
