选修8-Unit-5-Meeting-your-ancestors词汇学案含答案.doc

选修8 Unit 5 Meeting your ancestorsWords and Expressions执笔人 刘文青.词语辨析 used to / would【解释】would与used to都可用来表示过去经常性或习惯性的动作。would只能表示过去反复发生的动作。如果表示过去经常性的状态，就不能用would，只能用used to。used to表示过去经常性或习惯性的动作或状态，但现在已经结束。【练习】用used to或would填空。1) When we were boys we _ go swimming every summer. 2) He _ be very poor. 3) People _ believe that the earth was flat. 4) My hometown is no longer what it _ be.Keys: 1) used to / would 2) used to 3) used to 4) used to.词性变化1. applaud vt. 鼓掌，称赞，赞成applause n. 鼓掌欢迎，欢呼2. accuracy n.u精确性，正确度accurate adj. 正确的，精确的inaccurate adj.不准确的accurately adv.正确地，精确地inaccurately adv. 不准确地3. assume vt.假定；设想；采用；承担assumption n. 假定，设想，假装，就职assumed adj. 假定的，假装的，装的4. analysis n.c分析，分解analyse(analyze) vt.分析，分解analytical adj.分析的，解析的5. significance n. 意义，含义；重要性，重大significant adj. 相当数量的；意义重大的significantly adv. 意义深远地，重大地6. accelerate vt.&vi. 加速，促进acceleration n. 加速度7. skill n.c,u技能，技巧，熟练，巧妙skillful adj. 灵巧的，熟练的，制作精巧的skillfully adv. 巧妙地，技术好地【练习】用括号内所提供词的适当形式或介词填空。1) She should be _ (applaud)for her honesty.2) The design is slightly _ (accurate), so we must make some changes. 3) The boss is worried about the _ (accurate) of the statistics. 4) It s impossible to predict the weather _ (accurate). 5) The candidate s promise to improve public schools was greeted with a loud round of _( applaud).6) The _ (analyse) of the samples on the murder spot showed some valuable clues to the police the address. 7) Students need to possess certain basic _ (skillful) by the time they finish schoo1. 8) He was valued for his skill _ (介词) raising money for the company. 9) The discovery of the new drug is of great _ (significant) to people suffering from heart problems.10) We must take measures to _the rate of economic growth. Keys: 1) applauded 2) inaccurate 3) accuracy4) accurately 5) applause 6) analysis 7) skills 8) in 9) significance 10) accelerate.重点词汇1.assume v.假定，假设，设想；承担典例1) I had assumed him to be a Belgian. 我本以为他是比利时人。2) Dont always assume the worst. 别总往最坏处想。 3) It is generally assumed that stress is caused by too much work. 普遍认为，紧张是工作过重所致。4) The court assumed responsibility for the girls welfare. 法庭承担了保障这个女孩福利的责任。重点用法 1)assume sb./sth.to be假定/假设某人/某事为It is assumed that.被认为2)assuming that.假设/假定3)assumption n.假定，假设make an assumption认为，假定高手过招 完成句子1） (假定他还活着)，how old would he be now?（2） (我们假定) for a moment that the plan succeeds.（3）His actions were based on a false _ (设想).Keys: 1) Assuming that hes still alive 2) Let us assume3) assumption2.alternative n.c可能的选择；选择对象; 替换物 adj.选择性的，二中择一的;其他的典例1) You can be paid in cash weekly or by cheque monthly; those are the two alternatives. 你的工资可以按周以现金支取，或按月以支票支取。二者可选其一。2) The way was blocked, so I went by an alternative road. 这条路被挡住了，因此我走了另一条。 3) Do you have an alternative solution to the problem? 你有没有别的办法来解决这个问题？重点用法 alternative energy可替代能源an alternative to.的替代品have no alternative but to do sth.别无选择只好做There is no alternative.别无选择高手过招 完成句子或选择正确答案1）你可以结婚也可以仍做单身汉，任你选择。 You have the marrying or remaining a bachelor.2） - May I clean the room tomorrow? - No, you have no _. You must do it now, for the guests will come at any time.A. chance B. alternative C. way D. help翻译：_Keys: 1) alternative of 2) B -我可以明天打扫房间吗？-不行，你别无选择。必须现在就干，因为客人随时都会来。 3. interrupt vt.&vi. 阻断，中断；打岔；插嘴 典例1) Go on, please. I dont want to interrupt you. 请继续，我不想打断你的谈话。2) World War interrupted many students study. 第二次世界大战中断了许多学生的学业。3) It is rude to interrupt. 打断别人的话，是不礼貌的。重点用法 interrupt sb. 打断某人讲话或正在做的事interruption n. 中断，打断without interruption 不间断地易混辨异interrupt, disturb1）interrupt突然中断、打断他人的言语或行为，使其不能继续。interrupt sb.打断某人讲话或正在做的事2）disturb较正式用语，多用被动语态。指扰乱，使人不能平静或妨碍别人工作、思维或正常秩序，是程度较深的烦恼。高手过招 完成句子1)市内交通被暴风雪所阻断。Traffic in the city _ by a snowstorm. 2) Let s go somewhere where we can talk without _ .3) She was _ to hear of your illness. 4) I m sorry to _ the meeting, but there is an urgent long-distance call for Mr. Zhou.5) If you get up early, try not to _ everyone else.Keys: 1) was interrupted 2) interruption 3) disturbed 4) interrupt 5) disturb4. arrest vt. 逮捕，拘留，吸引(注意) n.c逮捕典例1) The criminal was arrested yesterday. 罪犯昨天被捕了。2) What she did arrested my attention. 她所做的吸引了我的注意力。重点用法be arrested for sth. 因某事而被捕get arrested遭逮捕arrest one s attention吸引某人的注意高手过招 根据意思完成句子1) He got arrested _ stealing cars.2) An unusual noise_(引起了他的注意).3) The public applauded the _ of the criminal suspect.Keys: 1) for 2) arrested his attention 3) arrest 5.relief n.减轻；解除；慰藉；救济；救援物品典例 1) This medicine will give you some relief. 这药会为你减轻一些痛苦。2) The doctors are working for the relief of suffering. 医生们为解除病痛而工作。3) To our great relief, the children all arrived home safely. 孩子们都安全到家了，我们大大松了一口气。4) Relief was flown to the flood-hit areas. 救济物品被空运到洪水受灾地区。重点用法 1)give a patient relief from pain使病人减轻痛苦much to ones relief (=to ones great relief)使某人大为放心的是，使某人深感宽慰的是provide relief for refugees救济难民2)relieve vt. 解除，减轻，缓和relieve sb.from anxiety消除某人的忧虑relieve sb.of 解除某人的（负担等）；减轻某人的（痛苦等）高手过招 完成句子1）令我庆幸的是，车还没有损坏。 _ , the car was not damaged.2）能够最后讲出真话似乎使她感到轻松。 Being able to tell the truth at last_ .3）新来的秘书会减轻一些我们文案工作的负担。 The new secretary will_ some of the paperwork.Keys: 1) Much to my relief 2) seemed to relieve her3) relieve us of.重点词组1. regardless of 不管；不顾典例1) I ll take the job regardless of the pay. 不管报酬多少我都要这份工作。2) He says what he thinks, regardless of other people s feelings. 他怎么想就怎么说，不考虑别人的情绪。高手过招 翻译下面的句子。1) 他不顾危险，跳进河里救那个溺水的小孩。_ 2) 不管天气怎样，我都会去。_ Keys: 1) He jumped into the river to save the little drowning boy regardless of the danger. 2) I will go regardless of the weather. 2. fed up with 受够了，厌烦典例 1) I m fed up with waiting for her to telephone. 我等她的电话都等得不耐烦了。2) What s the matter? You look pretty fed up. 怎麽啦？你显得那么不高兴。 短语归纳 feed短语：feed sb/sth on sth给（人或动物）食物；喂；饲养 feed sth to sb/sth 给（人或动物）某物作为食物feed on（动物）以为主食live on sth.以为主食；靠生活高手过招 根据句子的要求在括号里填入适当的介词。1) Several children were feeding bread _ the ducks. 2) What do you feed your dog _? 3) Cows feed _ grass. 4) I m fed up _ the same breakfast every morning.Keys: 1) to 2) on 3).on 4). with 3. look ahead 向前看；为将来谋划典例 1) He looked ahead in order to find his mother.为了找到他的妈妈，他向前看去。2) Have you looked ahead to what you ll be doing in five years time? 你是否想过五年後你要做些什么?短语归纳 look短语：look back 向后看； 回顾look out 留神；注意look into 调查 ；注视 look on 旁观；看作look up 查找；抬头看 look up to sb. 尊敬某人look through 浏览；仔细查阅 look up and down上下打量look forward to sth./doing sth. 盼望