2018届高考英语一轮复习教案：选修7 Unit 21 Human Biology

1[话题素材]好词1．low­carbonadj.低碳的2．severelyadv.严重地3．healthyadj.健康的4．balancedadj.均衡的5．keepawayfrom远离6．take_it_easy别着急；慢慢来；不要慌7．amajorityof大多数8．saveenergy节约能源9．as_follows如下10．innotime立刻11．onconditionthat条件是12．protect...against保护……免受……13．runout用完佳句1．Nothingismorepreciousthanyoukeepfit.再也没有什么比你保持健康更珍贵了。2．No_matter_howoftentheyturnup,theirwelcomeneverwearsout.不管他们多久露面一次，都永远那么受欢迎。3．According_tomypersonalexperience,neitheryounorIamunlikelytopersuadehimtodealwiththematterimmediately.根据我的个人经验，你和我都不可能说服他马上处理这件事。[精美语篇]Itissaidthatsportsisanimportantformoflife.Sportscanhelpeveryonekeephealthy,enrichourlifeandmaintainourpsychologicalhealth,andhelpusrelaxafteraperiodofexhaustingwork.Apersonwhooftentakesexerciseisalwaysfullofenergy.Sportscanalsomakepeoplelookyoungerthantheyreallyare.What'smore,itproduceschancestotrainourintelligence.Becausewethinkactivelywhenwedoexercise.Myparticipationinsportstellsmethatsportscanmakeushealthybothphysicallyandpsychologically.Itisalsoagoodwayforpeopletoknoweachotherandcanpromotefriendshipbetweenpeople.Solongaswearecarefulenough,sportscandousnothingbutgood.Personally,Ilovesports.Ienjoyparticipatinginsports.IfeelthatInotonlygaina2well­balancedlifethroughsports,butalsogetmorechancestomoveclosertonature.Sportshavereallyaddedhappinesstomydailylife.高频单词1．tolerate(vt.)容忍→tolerant(adj.)容忍的；宽容的→tolerance(n.)容忍；忍受2．fundamental(adj.)根本的，基础的3．seek(vt.)寻找→seeker(n.)寻找者；追求者4．oppose(vt.)反对→opposition(n.)反方；对立面→opposite(adj.)相反的；对面的→opposed(adj.)反对的5．violate(vt.)违反；违背→violent(adj.)猛烈的→violence(n.)暴力6．postpone(vt.)推迟，延期7．prohibit(vt.)禁止→prohibition(n.)禁止8．faith(n.)信心→faithful(adj.)忠诚的；忠实的→faithfully(adv.)忠诚地9．rob(vt.)使丧失；抢劫→robber(n.)强盗→robbery(n.)盗窃10．decline(vi.)下降(n.)减少；下降；衰减11．minimum(n.)最低，最小→maximum(n.)最高，最大12．equip(vt.)使有准备→equipment(n.)设备；装备13．fortune(n.)大笔钱财，巨款；运气→fortunate(adj.)幸运的→fortunately(adv.)幸运地14．enquiry(n.)询问→enquire(vt.)询问；调查15．submit(vt.)提交→submission(n.)提交16．extension(n.)延期→extend(v.)延长17．concern(n.)担心；担忧→concerned(adj.)关心的；担忧的→concerning(prep.)关于；有关18．circumstance(n.)情形；情况重点短语1．at_all_costs　不管多大代价；无论如何2．straight_away立刻；马上3．in_vain徒然；白费力气4．at_random随便地；随意地5．wipe_out彻底消失6．stop_sth._in_its_tracks终止；消灭7．at_any_rate无论如何；至少8．bringup教育；养育；呕吐；引述9．gothrough经历；通过10．putoff推迟11．getdownto开始做12．getthrough通过(考试等)；完成313．focuson聚集；集中；对准14．forgood(andall)长期地；永远地15．missout遗漏；遗忘；错过机会热点句型1．if引导状语从句用过去完成时，表示与过去事实相反的假设Manycontemporaryamateurathleteswould_have_broken_world_records_if_they_had_taken_part_inthefirstOlympicGames.(教材P34)许多当代的业余运动员如果参加了首届奥运会，他们会打破很多项世界纪录的。2．ratherthan是一个并列连词，表示“而不是”TheOlympicspirit－thespiritofcompetitionwhichemphasisestakingpartrather_thanwinning－hasbeenviolatedbythedesiretosucceedatallcosts.(教材P34)人们不惜任何代价想获胜的愿望违背了重在参与而不是获胜的奥林匹克精神。3．Itis＋adj.＋todosth.句式Unfortunately,it_is_not_easytocatchathletesusingillegaldrugs.(教材P34)不幸的是，要检查出运动员服用违禁药物是不容易的。4．havesth.done结构Inthefuture,athleteswhohave_their_genes_changedmightbeabletodothe100metresdashinjust8secondsorthemarathoninlessthantwohours.(教材P34)将来，改变基因的运动员有可能创下8秒跑完100米的纪录或不到两小时跑完马拉松的记录。5．sb./sth.bebelievedto...为固定结构，意为“某人或某物被认为是……”Havingkilledupto50millionpeoplein18months,withatendencytostriketheyoungandfitratherthantheold,the_Spanish_Flu_is_believed_to_have_beenthemostacuteepidemicinhistory.(教材P38)西班牙流感在18个月内使多达5千万人丧命，并且发病的倾向为：年轻力壮的而不是老年人容易发病，它被认为是历史上最严重的流行性传染病。教材复现在空白处填入适当的内容(1个单词)或括号内单词的正确形式。1．________(take)thesedrugsisknownas“doping”andalthoughtheyenhanceperformance,theyalsocauseserioushealthproblemsinlaterlifeforthose________abusethem.答案：Taking;who2．BenJohnson________stillbethe100metresworldrecordholderifhehadn'tbeencaught________(take)drugsinthe1988Olympics.答案：would;taking3．Dopingisnotonlyaprobleminathletics,itispartofeverysportswhereathletesseek________achievebeyondtheir________(nature)limitsandarepreparedtocheattodoso.答案：to;natural4．Unfortunately,itisnoteasytocatchathletes________(use)illegaldrugs.答案：using5．TheOlympicspirit－thespiritofcompetitionwhichemphasisestakingpartratherthan4________(win)－hasbeenviolatedbythedesiretosucceedatallcosts.答案：winning6．SinceBirdFlufirstappearedin1997,ithas________(take)morethanahundredlives.答案：taken7．________isimportanttolookatthespreadofdiseasesthroughouthistorytodiscoverthecausesandeffectsofepidemics.答案：It8．InurbanareasalloverEurope,Asia,AfricaandtheMiddleEast,up________onehalfofthepopulationwaslosttotheBlackDeath.答案：to9．Herhusband________(disagree)andsaidthatTerriwouldnothavewantedtoliveoninthisstate.答案：disagreed10．IagreewiththedecisionofthecourtsandmedicalinstitutionsintheUnitedStates,________inthecaseoflong­termcomastates，...答案：that1　　abuse　vt.&n.滥用；虐待；辱骂Theyalsocauseserioushealthproblemsinlaterlifeforthosewhoabusethem.(P34)对滥用兴奋剂的人来说，兴奋剂也会给他们以后的生活带来严重的健康问题。(1)abusesb.辱骂某人，虐待某人abusedrugs/alcohol吸毒/酗酒abuseone'sposition/power滥用职权/权力(2)drugabuse滥用毒品alcoholabuse酗酒abuseofpower滥用职权①[2013·江西高考]Itwillhitbackatyouifyouabuseit.如果你虐待它，它将回击你。②[朗文词典]Heabused_his_positionasmayorbygivingjobstohisrelatives.他滥用市长职权，任用亲属。③[朗文词典]Shehadbeenabusing_drugssinceshewastwelve.她从十二岁起就吸毒。④[朗文词典]Peoplewereshoutingabuseatthe