2020版高考英语一轮总复习 8-5 Unit 5 Meeting your ancestors课件

第一部分回归教材选修8Unit1～Unit5Unit5Meetingyourancestors考点突破02基础自测01随堂演练03基础自测01重温教材稳固基础Ⅰ.单词回顾(一)拓展单词1．n.挨饿；饿死→starvevi.挨饿；饿死2．tentativeadj.试探性的；尝试的→adv.试探性地3．n.精确；准确→accurateadj.准确的；精确的→adv.准确地；精确地4．interruptvt.&vi.打断……讲话；打岔；暂时中断或中止→n.打断；中断starvationtentativelyaccuracyaccuratelyinterruption5．assumevt.假定；设想→n.假设6．vi.&vt.(使)锋利；尖锐；清晰→sharpadj.锋利的；尖锐的→n.磨具；削具7．adj.凌乱的；脏的→messn.凌乱；脏8．analysisn.分析→pl.分析→vt.分析9．significancen.意义；意思；重要性；重要意义→adj.重要的10．somehowadv.以……方式；不知怎么地→(同义词)assumptionsharpensharpenermessyanalysesanalyse/analyzesignificantsomeway11．deletevt.删；删除→n.删除12．n.分割；划分；分配；分界线→dividev.分割；划分；分配13．applaudvi.&vt.鼓掌欢迎；赞赏→n.鼓掌14．acceleratevi.&vt.加速；促进→n.加速度15．adj.有技巧的；熟练的→skilln.技能；技巧16．botanyn.植物学→adj.植物学的；与植物学有关的deletiondivisionapplauseaccelerationskilfulbotanical(二)重点单词1．alternativen．adj.2．arrestvt.n．3．albumn．4．scratchn．vt.5．wrinklen．6．categoryn．可能的选择供选择的；其他的逮捕；吸引逮捕；拘留相册；集邮册；唱片(刮、抓、划的)痕迹；搔；挠搔；抓；擦伤；刮坏皱纹种类；类别；范畴7．acuteadj.8．ripenvt.&vi.9．primitiveadj.有观察力的；敏锐的；严重的使……成熟；成熟原始的；简陋的【联想】1．形容词＋­en变动词①sharp→磨快；使锋利②ripe→变成熟③short→变短；缩短④wide→(使)变宽⑤deep→使变深⑥strong→加强sharpenripenshortenwidendeepenstrengthen⑦fright→(使)惊吓⑧dark→使变暗⑨hard→使变硬⑩loose→(使)变松frightendarkenhardenloosen2．名词＋­y变形容词①mess→杂乱的②taste→可口的；好吃的③dust→布满尘土的④frost→结霜的⑤greed→贪婪的⑥thirst→口渴的⑦hunger→饥饿的⑧anger→生气的⑨fog→有雾的⑩sun→晴朗的messytastydustyfrostygreedythirstyhungryangryfoggysunny3．形容词＋in­前缀变否定词①accurate→不精确的②expensive→不贵的；便宜的③experienced→经验不足的④adequate→不充分的⑤appropriate→不合适的inaccurateinexpensiveinexperiencedinadequateinappropriate4．现在分词/过去分词用作介词或连词小结①assume→假设；假定②include→包含；包括③suppose→假设；假如④provide→假设；如果⑤consider→鉴于；考虑到⑥concern→关于⑦give→鉴于；考虑到assumingincludingsupposingprovided/providingconsideringconcerninggivenⅡ.短语回顾1．不管；不顾2．至多；最多3．切碎4．受够了；饱受；厌烦5．向前看；为将来打算6．追溯到；始于regardlessofatmostcutupbefedupwithlookaheaddatebackto7．因……而逮捕某人8．欣慰地9．阻止进入10．向某人求助11．知道；意识到arrestsb.forwithreliefkeepoutturntosb.forhelpbeawareof【联想】1．表示“不管；不顾”的词汇①of不管；不顾②尽管；不管③inof尽管；不管regardlessdespitespite2．无被动语态的动词短语①date/back追溯到②belong属于③consist由……组成④come变成现实⑤take发生⑥break爆发fromtotooftrueplaceoutⅢ.佳句必背1．“musthave＋过去分词”表示“对过去的肯定猜测”Itveryuncomfortable.那肯定不舒服。2．“keep＋复合宾语”结构Wehavebeenexcavatinglayersofashalmostsixmetresthick,whichsuggeststhattheymighthaveallwinter.我们一直在挖掘一层层的灰烬，几乎有六米厚，这意味着他们可能整个冬天都在烧火。musthavebeenkeptthefireburning3．as引导的非限制性定语从句Yes,indeed,allthefieldsaroundhereusedtobepartofalargeshallowlake.是的，很对，正如植物学的分析结果已经告诉我们的，这儿四周曾是一个很大的浅水湖。4．ifonly...要是……就好了shehadlookedaheadandplannedbetterthisyear!要是今年她早有预见，计划得更好些就好了。asthebotanicalanalyseshaveshownus,Ifonly5．onlytodosth.不料；结果……，动词不定式作结果状语，表示意料不到的情况Abruptlyshesatdown,byherlaughing,shoutingsister,Luna.她突然坐下来，结果却被她那又笑又嚷的妹妹露娜一把抱了起来。onlytobescoopedupⅣ.课文回顾AgroupofstudentsfromEnglandhascometotheZhoukoudiancavesforavisit.__1__archaeologistisshowingthemaround.Thearchaeologistshavebeenexcavatinghereformanyyears.After__2__(find)humanandanimalbonesinthosecaveshigherupthehillaswellastoolsandornaments,theythink__3__reasonabletoassumesomeoftheearliestpeoplelivedinthesecaves,__4__ofthecold.Theydiscoveredfireplacesinthecenterofthecaves__5__theyconstructedfires.Someevidencesuggeststhatourancestors__6__(do)wearclothesmadefromanimalskins.Thearchaeologistalso__7__(show)thestudentsaprimitivenecklace__8__(preserve)quitewell.Indeed,asthebotanicalanalyseshavebeen__9__(special)showingus,allthefieldsaroundhereusedtobepartofalargeshallowlake.Perhapstherewastradebetweenearlypeoples__10__theytraveledtotheseasideontheirjourneys.1．2.3.4.5.6．7.8.9.10.AnfindingitregardlesswheredidshowspreservedspeciallyorⅤ.单元语法现在完成进行时1．Inordertofindthemissingchild,villagers(do)alltheycanoverthepastfivehours.2．Thegirlhasagreatinterestinsportand(take)badmintonclassestwiceaweekoverthelastthreeyears.3．It(rain)fortwodays.Whenwillitstop?Iameagertogoout.havebeendoinghasbeentakinghasbeenraining4．Letthesoldierssleepforawhilebecausethey(rescue)theinjuredfortwelvehoursnon­stop.5．Formorethan50years,travelers(use)theinternationaldriver'slicensetotravelinforeigncountries.havebeenrescuinghavebeenusing考点突破02核心考点各个击破核心单词重难突破1．alternativen．可能的选择adj.供选择的；其他的Canyouthinkofthealternativeswewouldusetoday?你能想出我们今天使用的替代品吗？(1)analternativeto……的替代物(to是介词)havethealternativeofAorB要么做A，要么做B；在A或B二者中选一个havenoalternativechoice/optionbuttodosth.别无选择只好做某事thereisnoalternative别无选择(2)alternativelyadv.可供选择地[练习]单句语法填空①Therewasnootheralternativebut(fight)tillthevictory.②ItwassoseriousamatterthatIhadnoalternativebut(call)thepolice.tofighttocall2．tentativeadj.试探性的；不确定的；暂定的；犹豫的MakeatentativeguessaboutwhatPekingManmayhavedoneandusedthousandsofyearsago.试着猜猜几千年前“北京人”可能做的事情和使用的东西。(1)makeatentativesuggestion提出试探性的建议reachatentativeconclusion得出初步结论(2)tentativelyadv.试探地；犹豫不决地[练习]单句语法填空He(tentative)madeasuggestionthatweshouldtakeataxi.tentatively3．interruptvt.&vi.打断……讲话；打岔；暂时中断或中止I'msorrytointerruptyoubuthowcouldtheylivehere?对不起，打断了你的讲话，但他们怎么能住在这个地方呢？(1)interruptsb./sth.(withsth.)(因某事)打断某人/某事(2)interruptionn．打扰；插嘴；阻断物withoutinterruption连续地；不断地[练习]单句语法填空①They(interrupt)byasuddenandurgentknockatthedoor.②Sorryforthe(interrupt)butI'dliketoremindyouit'sti