U1 重点词汇讲解1. contribute[v.] 出（钱﹑力﹑主意等）；捐助；捐赠；贡献：~ (sth.) (to/towards sth.)1) contribute (ten pounds) to a charity collection 捐献（十镑）给慈善事业2) contribute aid for refugees 向难民提供援助3) Everyone should contribute what he or she can afford.人人都应该尽自己的能力作贡献。

4) The chairman encourages everyone to contribute to the discussion.主席鼓励大家参与讨论。

~ to sth. 增加某事物; 添加到某事物中:Her work has contributed enormously to our understanding of this difficult subject.她的着作极有助於我们对这个困难问题的了解。

~ to sth. help to cause sth 促成某事物:Does smoking contribute to lung cancer? 吸烟会导致肺癌吗？~ (sth.) to sth. write (articles, etc) for a publication 撰稿；投（稿）：She has contributed (several poems) to literary magazines. 她给文学刊物投了（几首诗）稿。

2. adopt~ sb. (as sth.) 收养某人（尤指作为儿女或继承人）；过继：1) Having no children of their own they decided to adopt an orphan.他们因没有亲生儿女, 所以决定领养一个孤儿。

2) Paul’s mother had him adopted because she couldn’t look after him herself.保罗的母亲因为自己无力抚养他, 便将他送给别人收养了。

3) He is their adopted son. 他是他们的养子。

~ sb. as sth. 挑选某人作候选人或代表:She has been adopted as Labour candidate for York. 她被提名为约克郡的工党候选人。

采纳；采取；采用：adopt a name, a custom, an idea, a style of dress取名﹑随俗﹑采纳一意见﹑采用一服装式样adopt a hard line towards terrorists 对恐怖分子采取强硬态度adoption [n.] 收养；过继；挑选；采纳；采取；采用；接受：1) offer a child for adoption 将孩子送给他人收养2) This textbook has had adoptions in many countries.这本教科书已被很多国家采用。

adoptive [adj.] 有收养关系的；过继的；采纳的；接受的：his adoptive parents 他的养父养母3. delay [v.] 使（某人）慢或迟到; 耽搁; 延误:1) Don’t delay! Book your holiday today! 别拖延！今天就定下你休假的日子！2) She delayed (for) two hours and missed the train. 她耽搁两个小时, 把火车误了。

3) I was delayed by the traffic. 因交通阻塞，我迟到了。

推迟（某事）；延期：1) We must delay our journey until the weather improves.我们必须把旅行推迟，等天气好转再说。

2) Why have they delayed opening the school? 他们为什麽延期开学？delay [n.]耽搁；延误；推迟；延期：We must leave without delay. 我们必须立即离开.被耽搁或推迟的时间：There was a delay (of two hours) before the plane took off. 飞机起飞推迟了（两个小时）。

4. accessible [adj.]可接近的；可进入的；可使用的：~ (to sb.)1) a beach accessible only from the sea 只能从海上到达的沙滩2) documents not accessible to the public 公众无法接触到的文件.access [n.]~ (to sth.)（接近或进入某地的）方法；通路：1) The only access to the farmhouse is across the fields. 要到那农舍去唯有穿过田地。

2) The village is easy/difficult of access. 到那个村子的路很容易[很难]走。

~ (to sth./sb.)（使用某物或接近某人的）机会或权利：1) get access to classified information 得到接触秘密情报的机会2) Students must have access to a good library. 学生要有使用好图书馆的便利条件。

3) Only high officials had access to the president. 只有高级官员才可以接近总统。

access [v.] 存取（计算机文件）:1) She accessed three different files to find the correct information.她存取了三个文件以找寻所要的信息。

2) The files were accessed every day to keep them up to date. 文件每日存取, 使之不断更新。

5. tear [v.] (tore, torn)将（某物）撕开﹑扯下或撕碎：1) tear a sheet of paper in two 把一张纸撕成两半2) a torn handkerchief 撕破的手帕3) He tore his shirt on a nail. 他的衬衣让钉子挂破了。

4) tear a parcel open 把包裹撕开（在某物上）撕，扯，划，刺（洞或裂口）：The explosion tore a hole in the wall. 墙炸开一个洞。

撕下，撕掉，扯下，扯掉（某物）：tear a page out of a book, a notice down from a wall, the leaves off a tree撕下一页书﹑从墙上撕下布告﹑从树上揪下树叶~ sb from sb./sth. 强行使某人离开某人[某物]；夺去；揪走：The child was torn from its mother’s arms. 把孩子从母亲怀抱中夺走了。

撕碎；撕裂；撕破：1) This cloth tears easily. 这布料容易撕破。

2) Don't pull the pages so hard or they will tear. 别那麽使劲扯书页，那会撕破的。

破坏（某物）的安宁；扰乱：1) a country torn by war 战乱不安的国家2) Her heart was torn by grief. 她肝肠寸断。

tear at sth. (with sth.)撕扯或撕开某物：tore at the meat with his bare hands 用他的手撕肉tear oneself away (from sb./sth.) 舍不得离开某人[某事物]：Do tear yourself away from the television and come out for a walk.你别舍不得离开电视了，出去散散步吧。

be torn between A and Bhave to make a painful choice between two things or people （在两个事物或人之间）作痛苦的抉择：torn between love and duty 在爱情和职责间作痛苦的抉择tear sth down弄倒某物；拆除某物：They’re tearingdown these old houses to build a new office block.他们正拆除这些旧房子以便建一座新办公楼。

tear sth up撕毁（文件等）：1) She tore up all the letters he had sent her. 她把他写来的信都撕了。

2) He accused the government of tearing up (ie repudiating) the negotiated agreement.他控告政府撕毁（不履行）协议。

6. live[adj] 有生命的；活的：live fish 活鱼（尤用於指惊人的或异常的经历等)真正的；不是假装的：We saw a real live rattlesnake! 我们看到一条真的响尾蛇！发着光的；点燃着的：live coals 燃烧着的煤（指电线等）带电的，通着电的：That terminal is live. 那个接头有电。

the live rai 带电的铁轨（如在电气铁路上）（指广播）现场直播的，实况转播的：live coverage of the World Cup 世界杯实况报道（指音乐演奏或录音）音乐会现场播出或录制的：a live recording made at Covent Garden in 19621962年在考文特公园的现场录音.live [adv.] 实地；从现场；以直播方式：This show is going out live. 这场演出正在进行实况转播。

7. broadcast[v.] (pt, pp broadcast)1.（用无线电或电视）播送（节目）2. 宣布broadcast a concert live 现场直播音乐会broadcast one's views 表明自己的观点[n.]（无线电或电视的）广播节目CNN’s live broadcast of the trial CNN 对审判进行的现场直播8. wind[V.] (pt, pp wound)1.（使某物）沿弧形的﹑弯曲的或旋转的路线前进2. 将（绳﹑毛线﹑纱等）缠绕成球或缠绕在轴上3. 转动（把手﹑绞车等）1) The river winds down to the sea. 这条河蜿蜒流向大海。