1、Words and Expressions Unit 3 Sea explorationset sail for 开船；启航；起航去；动身开船；启航；起航去；动身set off 出发 ，使爆炸set out to do=set about doing 开始着手做set down 写下；记下；放下；让某人下车 set aside=put aside；把放一边set up 建立=establish=found extension n.扩大;扩展;延伸;延长期 extensive adj.广阔的；巨大的extend a road/house 扩建公路/房子extend a deadline 延长最后
2、期限 extend an invitation 发出邀请The chairman extended a warm welcome to the guest speaker.主席对特邀演讲者表示热烈欢迎。1The government will not negotiate with terrorists.2We have been negotiating for more pay.3The issue is still under negotiation.negotiation n.谈判；磋商；协商negotiable adj.可可协商的，可讨论协商的，可讨论的的negotiator n.谈判代
3、表谈判代表negotiate with.同同协商；谈判；交涉协商；谈判；交涉negotiate for.为为谈判谈判under negotiation 正在商讨正在商讨 a fleet of 机群；一队withdrawal n.撤走，收回，提款 1 提，取（银行账户中的款）to take money out of a bank account2.Government troops were forced to withdraw2.（使）撤回，撤离to move back or away from a place or situation3.The minister withdrew his s
4、tatement later.3.收回（发言、意见）收回（发言、意见）4.They have decided to withdraw from the competition4（使）退出to stop taking part in an activity or being a member of an organizationprofessional adj.专业的；职业的；职业性的professor n.教授；a mixture of .的混合 mixed adj.混合的，混杂的 mix v.混合，调配 mix A with B/mix A and B 将 A 和 B 混合起来 covera
5、ge n.新闻报道；覆盖范围 cover v.掩蔽、遮盖；包含、涉及；足以支付、够付；行走（一段路程）；距离，面积；占（一片面积）；采访;报道 16.applaud vt.vi.鼓掌 vt.称赞；赞赏 n.掌声掌声 applause爆发出雷鸣般的掌声爆发出雷鸣般的掌声:break into thunderous applause赞赏她有勇气:applaud her for courage adj.merciful 仁慈的仁慈的God have mercy on us.(怜悯)They showed no mercy to the prisoners.(毫不留情)The little ship
6、was at the mercy of the storm.(任凭摆布)The boss fired his employees without mercy.(无情地)possess vt.拥有拥有Tom is in possession of this picture.(占有；拥有占有；拥有)This picture is in the possession of Tom.(为为所有所有)Weve bought the house but we wont take possession of it until May.(拥有；占有拥有；占有)-sion名词后缀2ex-出+ten 伸出+-si
7、on 名词后缀 possession3divi 分+-sion 名词后缀1 extension 延长，扩展延长，扩展decision 决定决定division 除，分除，分deci 决定+-sion 名词后缀opponent n.反对者；对手；竞争者 oppose v.反对log vt.把载入正式记录;记录 n.正式记录;日志;原木 登录log in/onarrest n.逮捕;拘留;中止 vt.逮捕;拘留;阻止 1，My brother was arrested for drunk driving.（因被拘留）2.An unusual noise arrested his attention.(吸引某人注意)3.He is under arrest.(被捕)
