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1、 1.billionpron.&n.&adj.十亿，万亿十亿，万亿billionsof.数十亿的数十亿的回顾：回顾：hundredsof.millionsof.Eg:Twobillionpeoplewillcometovisitthefamousscientist.2、violent.adj.猛烈的；激烈的；猛烈的；激烈的；a violent attack猛烈的进攻猛烈的进攻 violent pain极度痛苦极度痛苦该词的名词形式为该词的名词形式为violence，副词是，副词是violently。3in time 及时；总有一天；迟早及时；总有一天；迟早 ahead of time 提前；提
2、早提前；提早take ones time别着急；慢慢来别着急；慢慢来eg:Will we be in time for the six oclock train?If you keep on working hard，youll succeed in time.innotime立刻立刻,马上马上time相关的短语at times _at a time 每次;依次_ 从前 _按时;准时at one time_ for the time being 暂时from time to time _有时 once upon a timeon time不时地 从前4、harmful adj.有害的有害的;伤
3、害的伤害的Eg:Smoking can be harmful to your health.1）反义词：反义词：harmless意为意为“无害的无害的”；搭配搭配：be harmful to。2）名词形式）名词形式harm及由其构成的短语有：及由其构成的短语有：do sb.sth.harm =do harm to sb.sth.harm也可以用作动词，表示损害也可以用作动词，表示损害;对对有有害处害处。如：。如：5、multiply(数目上数目上)增加，增多；乘；（使）增加，增多；乘；（使）繁殖繁殖 Eg:1)Our problems have multiplied since last ye
4、ar.2)The plants here multiply rapidly.6.layeggs下蛋下蛋lay-laid-laid-laying放放,把把.放在放在.;产卵产卵e.g.Helaidhisbooksonthedesk.lying lied laid laid lie 7exist vi.存存在在；生生存存(无无被被动动式式和进行时和进行时)(1)There exists/existed.某某地地有有；存在；存在exist in存在于存在于 exist on靠靠生活生活/生存生存(2)existence n存在；生存存在；生存(3)existent adj.存在的；现行的存在的；现行
5、的 8.givebirthto产生，分娩产生，分娩Marygavebirthtoahealthybabygirl.Itwasthiseventthatgavebirthtothepeacemovement.9.inonesturn轮到某人轮到某人Itsonesturntodosth.轮轮到到某某人人做做某某事了事了Iwill，inmyturn，cleanthewindownextweek.10.1)Therewasnothingtopreventherfromdoingso.2)We must prevent the water frombeingpolluted.11puzzle nC难题，
6、谜难题，谜vt.使迷惑使迷惑puzzle sb.使某人迷惑使某人迷惑puzzling adj.令人困惑的令人困惑的puzzled adj.感到困惑的感到困惑的用用puzzle的适当形式填空的适当形式填空。1.Mybrothersrecentbehaviour_me.2.Nancybegantothinkatonceaboutthetwo_mysterieswhichshehopedtosolve.3.Imstill_aboutwhyshesaidthat.4.Hestaredatthewordsincomplete_.puzzlespuzzlingpuzzledpuzzlement12pull
7、n&vt.拉拉(力力)；拖；牵引；拖；牵引(力力)pullin进站；吸引进站；吸引pullout离站；离站；(使使)摆脱困境摆脱困境pullthrough恢恢复复健健康康；完完成成(十十分分困困难的事难的事)pulldown贬低贬低(人人)；拆毁；拆毁(建筑物建筑物)He succeeded in pulling throughthedifficulty.Theworkersaretryingtopulldownthedangeroushouses.13cheervt.&vi.(使使)高高兴兴；(对对)欢呼欢呼n愉快，欢呼；喝彩愉快，欢呼；喝彩(1)cheerfuladj.快乐的，高兴的快乐的
8、，高兴的cheeringn.欢欢呼呼，喝喝彩彩adj.令令人人振振奋的，令人高兴的奋的，令人高兴的Cheers！(用于祝酒用于祝酒)干杯！干杯！(2)cheerup使使高高兴兴，使使振振奋奋；高高兴兴起起来，振作起来来，振作起来cheersb.on(比比赛赛中中)激激励励某某人人；为为某某人加油人加油The good news cheeredeverybodywhoheardit.The spectators cheeredtherunnerson.Cheer up！Our troublewillsoonbeover.Nowthat 14.15.breakout突发，爆发突发，爆发breakup驱散，驱散，结束结束breakdown（车辆等）（车辆等）坏掉坏掉/出毛出毛病病breakinto.破门闯入破门闯入.翻译：翻译：那场战争发生在那场战争发生在1956年。年。Thewarbrokeoutin1956.Abigfirebrokeoutsuddenlylastnight.over on on Youshouldwatchoutforthecarsinthestreet.16.watchoutfor