选修8-Unit-5-Meeting-your-ancestors知识点课件

1、选修8Unit 5Meeting your ancestors1共 112 页.词汇短语过关1alternative n. 可能的选择； adj. 供选择的；其他的an alternative to. 的替代品alternative energy 可替代能源have no alternative but to do sth.除了做某事别无选择= have no choice but to do sth.= have nothing to do but do2共 112 页e.g. 除了放弃那个计划，我别无选择。I have no alternative but to give up the p

2、lan.= I have no choice but to give up the plan.= I have nothing to do but give up the plan.3共 112 页即学即练(1)Have you got an _ suggestion?你有没有其他的建议？(2)We have _.除了继续下去，我们没有选择的余地。alternativeno alternative but to go on4共 112 页2interrupt vi. 打岔=cut in 插嘴， 打断 vt. 暂时中断或中止 interrupt sb. 打断某人的讲话或正在做的事 disturb

3、 sb.打扰某人 interruption n. 中断，打断 without interruption 不间断地5共 112 页即学即练(1)Dont _ me while Im busy.我正忙着，不要打搅我。(2)Traffic in the city _ a snowstorm.市内交通被暴风雪所阻断。interruptwas interrupted by6共 112 页3assume v. 假定；设想assumption n. 假定，假设assume sb. / sth. to be 假定 某人 / 某事为 sb. assume thatclause 某人认为It is assumed

4、 that 人们认为 assuming that.suppose/supposing that 假设7共 112 页即学即练(1)You _ his innocence before hearing the evidence against him.You _ him _ innocent before hearing the evidence against him.You _ he is innocent before hearing the evidence against him.在听到对他不利的证言前，你假定他是无罪的。assumeassumeto beassume that8共 1

5、12 页(2)_/_/_ (that) it rains, what shall we do? 假如下雨的话，我们怎么办？Assuming SupposeSupposing9共 112 页4somehow adv. 用某种方法，不知怎么地， 不知为什么somehow adv. 在句中做状语修饰动词，位置比较灵活somewhat 稍微，有点anyhow 无论如何anyway 无论如何；不管怎样；用任何方式10共 112 页即学即练(1)_ he was afraid of her.不知为什么，他怕她。(2)Dont worry, well get the money back _.别担心，我们总

6、会把那些钱拿回来的。Somehowsomehow11共 112 页(3)I was _ surprised.我有点儿吃惊。(4)It may rain, but we shall go _.可能要下雨，不过我们照走不误。somewhatanyway12共 112 页5arrest n. 逮捕；拘留vt. 逮捕；吸引arrest sb. for 因而逮捕某人get arrested 遭逮捕arrest ones attention 引起注意即学即练(1)Embry _ stealing cars.恩布里因为偷车而被捕了。was arrested for13共 112 页6regardless o

7、f 不管；不顾in spite of 尽管；不管=despite 不管；尽管in regard to/of. 关于with regard to 关于regarding prep. 关于14共 112 页提示：regardless of, in spite of和 despite 是介词短语，后跟名词。即学即练(1)They decorated the house _ the high cost. 他们不惜高额的费用装修房子。(2)They continued to work _ the fact that it was raining. 尽管天在下雨，他们还继续工作。regardless of

8、regardless of15共 112 页7at most至多at (the) most至多，不超过at (the) least至少，不低于；无论如何most of all尤其，特别make the most of(make full use of)充分利用not in the least(not at all)一点也不16共 112 页即学即练(1)I can pay you 10 pounds _.我最多付给你10英镑。(2)There were only 30 people at the meeting _.最多只有30个人参加了那个会议。(3)It will cost _ 150.这

9、至少价值150英镑。at (the) mostat (the) mostat least17共 112 页8cut up 切碎；割碎cut down 砍掉，砍倒；缩减，减少，削减cut through 剪断，凿穿；抄近路穿过cut out 剪下，切掉，割掉；删除；住口cut in 插嘴，插入；打断(谈话)cut off 切掉；割掉；剪下，删去；切断，断 绝；使分离，使隔绝；打断，(突然)中止，中断cut away 去掉；切掉；砍掉18共 112 页即学即练(1)_ the carrots before you put them into the pot.把胡萝卜切碎后再放进锅内。The coo

10、k _ the meat for the pie.这厨师将肉切碎做肉饼。Cut upcut up19共 112 页(2)用适当的介、副词填空You wont be cutting _ the office staff, then?The gas has been cut_.John and his brother were arguing so their mother told them to cut it _ and go to bed.Mr. Davis cut _ to ask if anyone would like a drink.He cut _ the old branches

11、 from the tree.downoffoutinaway20共 112 页9look ahead 向前看；为将来打算look back 回顾；回想look after 照顾，照料look up 仰视，查阅look up to sb. 尊敬某人look down on/upon sb. 轻视；瞧不起look into sth. 调查look over 浏览检查，察看look through 翻阅，查找21共 112 页即学即练(1)Just _ and youll see a tower.只要向前望去，你就可以看到一座塔。(2)It is better to _ and get prepa

12、red than to _ and regret.宁可展望未来做好准备也不要回顾过去来懊悔。(3)We must _ before we make a decision.我们作出决定之前必须想得远一点。look aheadlook aheadlook backlook ahead22共 112 页10date back to追溯到；上溯到 date back todate from因追溯是从现在算起指向过去，所以这个短语常用一般现在时，也没有被动语态。23共 112 页即学即练(1)This custom _ the 16th century.这风俗起源于16世纪。(2)This is an

13、old building _ the 16th century.这是一栋追溯至16世纪的古老建筑物。(3)This town _ Roman times.这个城镇可追溯到罗马时代。dates back todating back todates back to24共 112 页11.significance n意义；重要性 significant adj. 重要的；有意义的be of great / no / little significance非常重要的/不重要的/不太重要的“beof抽象名词”结构 “beadj.” (这些名词前可用great，some，no, little 等词修饰)2

14、5共 112 页be of importance be important重要的be of help be helpful有帮助的be of use be useful有用的be of value be valuable有价值的be of benefit be beneficial有益的；有好处的26共 112 页即学即练(1)Few people realized the _of the discovery. 很少的人意识到这项发现的意义。(2)This new discovery of oil _ to this areas economy. 这个油的新发现对于这个地区的经济是非常重要的。

15、significanceis of great significance27共 112 页12.relief n.减轻或解除I felt great relief when I heard I had passed the examination. to ones relief 令放心的是，令感到宽慰的是Much to his relief, finally his lost son was found by the police. to ones surprise to ones delight28共 112 页.重点句型详解1It is a great pleasure to meet y

16、ou students from England.我很高兴遇见你们这些来自英国的学生pleasure 本来是抽象名词，在此句中具体化，意思是“乐事；快事”。29共 112 页Its a pleasure to meet you.认识你是十分高兴的事。She has few pleasures left in life.她生活中已没有什么乐趣了。拓展：抽象名词的具体化是高考的常考点之一，现总结如下：表示具有某种特性、状态、特点、情感、情绪的人或事，且表示变化了的词义时，这类抽象名词由于已具体化，故可变为可数名词。如：30共 112 页a pleasure 乐事 a success 成功的人或事a

17、 surprise 奇异的事 a failure 失败的人或事a pity 可惜的事 a must 必要的事a worry 令人担忧的事 a wonder 奇迹a great help 有帮助的人或事 a youth 年轻人a danger 危险的人或物 a beauty 美人31共 112 页即境活用1She is _ success, _ woman as she is.A/; / Ba; aC/; a Da; /答案：D解析：考查冠词。第一空填a，表示“一位成功人士”；第二空 as引导让步状语从句时，句子需倒装且名词前不填冠词。32共 112 页2We have_been_excavat

18、ing layers of ash almost six metres thick, which suggests that they might have kept the fire burning all winter.我们一直在挖掘一层层的积灰，几乎有六米厚，这意味着他们可能整个冬天都在烧火。33共 112 页(1)句中的have been doing是现在完成进行时。完成进行时是现在完成时的强调形式，表示动作开始于过去，持续到现在，现在还在进行或刚刚结束，通常与表示一段时间的状语连用，如：for hours, since this morning，all day ,all week等，

19、其构成是“have/hasbeen现在分词”。34共 112 页【注意】现在完成进行时与现在完成时的区别：二者都可以表示动作的延续We have been living here for ten years.(强调还要继续住下去)I have been looking for my lost book for three days, but I still havent found it.我已经花了三天的时间找我丢失的书，但还没有找到。35共 112 页We have lived here for ten years.(不知道是否已经结束) 在无时间状语的情况下，前者表示动作仍在进行，而后者则

20、表示动作在过去已结束。The students have been preparing for the exam.(还在进行)The students have prepared for the exam.(已经结束)36共 112 页即境活用2(1)The two countries _ to maintain their military equation for many years.Atried Bwas tryingChave tried Dhave been trying答案：D37共 112 页3Abruptly she sat down, only_to_be_scooped_

21、up by her laughing, shouting sister, Luna.她突然坐下，结果被她又笑又嚷的妹妹鲁娜抱了起来。only to be scooped up by her laughing, shouting sister, Luna是不定式做结果状语，多表示意料之外的结果。38共 112 页He hurried to the station only to find that the train had left. 他匆匆忙忙地赶到车站，结果发现火车已经开走了。提示：ing 形式做结果状语多表示由于前边的动作自然而然地导致后边的结果。如： They can eat a pe

22、rson in two minutes, leaving only bones. 它们可以在两分钟之内把一个人吃光，只剩骨头。39共 112 页European football is played in more than 80 countries, making it the most popular sport.有80多个国家踢欧式足球，这使得它成为最流行的运动。即境活用3The news reporters hurried to the airport, only _ the film stars had left.Ato tell Bto be toldCtelling Dtold4

23、0共 112 页答案：B解析：onlyto do 常做结果状语，故排除C、D两项。根据句意可知是“别人告诉记者”，the news reporters 做主语，需用被动式。41共 112 页.单词拼写1I have to s_ the pencil. It doesnt write well.2Millions will face s_ next year as a result of the drought.3. After her performance, the audience stood up and a_ the actress for a long time.4Its widel

24、y accepted that botany falls into the c_ of biology.5You can be paid in cash weekly or by cheque monthly; those are the two a_.sharpenstarvationapplaudedcategoryalternatives42共 112 页6He was _(逮捕) for murdering.7Children must learn not to _ (打断谈话)8_(假定) it rains tomorrow, what shall we do?9Who will l

25、earn a language _ (不管) of methods, materials, or teachers?10_(不知怎么地), the message was passed.arrestedinterruptAssumingregardlessSomehow 43共 112 页 .单项选择1Would you do me a favor and give me a ride?_.AIts my pleasure BNo troubleCYes, thats right DWith pleasure答案：D解析：本题考查口语情景回答。从语境分析，此处应该表示“非常乐意去帮忙”的意思。

26、Its my pleasure. “不客气”的意思，接受道谢时的回答。而 with pleasure 的意思为“非常愿意”，用来回答对方的请求。故选D。44共 112 页2(2009湖北卷)As there is less and less coal and oil, scientists are exploring new ways of making use of _ energy, such as sunlight, wind and water for power and fuel.Aprimary BalternativeCinstant Dunique答案：B解析：考查形容词辨析。

27、B.“可替代的”合题意。A.主要的，初期的，根本的；C.立即的，立刻的；D.独特的，唯一的。45共 112 页3We all can go out for a picnic this afternoon_ that the others agree.Ato assume BassumedCassume Dassuming答案：D解析：assumingsupposesupposing“假设”。46共 112 页4Her friend I referred to just now was _ for fraud.Asuspected BchargedCaccused Darrested答案：D解析

28、：be arrested for 因被逮捕。be suspected of 被怀疑；be charged with和 be accused of 意为“被控告”。47共 112 页5At times this balance of nature is _, resulting in a number of possibly unforeseen effects.Atroubled BdisturbedCconfused Dinterrupted答案：B解析：句意为：有时生态平衡被打破，结果会有很多难以预见的影响。 interrupt 打断；trouble 麻烦；disturb 打扰，搅乱；co

29、nfuse 迷惑。48共 112 页6_, we must expect changes to be made in our system of teaching.ALooking around BLooking aheadCWatching out DSeeing around答案：B解析：句意为：向前看，我们必须期望教学系统的变化。49共 112 页7_the bad weather, the athletic meeting will be held on time.AIn contrast with BIn relation toCOn behalf of DRegardless of

30、答案：D解析：句意：不顾坏天气，运动会将按时举行。A.与比较；B.关于，与有关；C.代表。50共 112 页8I was overjoyed to pass the oral English test _, though I was not good at it.Asomewhat BanyhowCanyway Dsomehow答案：D解析：选择 somehow 不知怎么地。somewhat 稍微； anyhow, anyway 无论如何。51共 112 页9_ the Christmas holidays would come sooner!AOnly if BIfCIf only DUnl

31、ess答案：C解析：If only.“要是就好了！” only if “只要，如果”。52共 112 页10Im really _ this weatherwhy cant it be sunny for a change?Afed up to Bfed onCfed to Dfed up with答案：D解析：句意：我真的受够了这种天气为什么不变一下，出出太阳？be fed up with为固定结构，意为“厌烦”，符合语意要求。53共 112 页11(2010绵阳中学)_ Chinese which city is famous for ice and snow, and the answer is sure to be Harbin.AIf you ask a BAsked someCAsk any DHaving asked every答案：C解析：考查“祈使句and/or结果分句”句型。该句型中祈使句用动词原形，祈使句相当于一个条件状语从句，本句可改为If you ask any Chinese which city is famous for ice and snow, the answer is sure to be Harbin.注意：改成条件状语从句时主句前没有连词and。54共