人教版高中英语必修4第二单元Working the land复习教学案
人教新课标高中英语必修四Unit 2 Working the land导学案
新人教版高一英语必修四Unit 2Working the land 导学案Unit 2 Working the land核心单词1. strugglev.挣扎；努力；拼搏；斗争n. (为争取自由、政治权利等而进行的)斗争，奋斗常用结构：struggle with与……斗争struggle for 为争取……而斗争struggle against与……斗争；为反对……而斗争struggle to do sth. (=make great efforts to do sth.)努力做某事struggle to one’s feet 挣扎着站起来She struggled to keep back the tears. 她努力忍住泪水。
It was a hard struggle to get my work done on time.为使工作按时完成, 我做了一番努力。
易混辨析struggle/fightstruggle指较长时间的、激烈的斗争，往往指肉体及精神上的战斗。
fight意为“搏斗，打斗，打架”，表示“斗争”时，包含体力和勇猛的因素。
高手过招(1)单项填空The working people have never stopped their struggle unfair treatment. （2010·01·山西太原五中检测）A. againstB. forC. fromD. to(2)完成句子（原创）①我们应当帮助那些仍在为独立而斗争的人们。
We should help those who are still .②他们得和各种各样的困难作斗争。
They had to .(1)解析：选A。
struggle against意为“同……作斗争”；struggle for意为“为了……而斗争”。
(2)①struggling for independence②struggle with/against all kinds of difficulties2. expandv.扩大；扩展；增加；增长；（使）膨胀；阐述；使变大常用结构：expand...into...将……扩展/发展成……expand on 阐述；详谈He is thinking of expanding his business.他在正考虑扩大他的生意。
2020版高考英语大一轮复习第1部分Unit2Workingtheland教案(含解析)新人教版必修4
Unit 2 Working the land[话题单词]1．provide v．提供2．lack v．&n. 缺少3．waste v．浪费4．recommend v．推荐5．decline v．减少6．hit v．产生不良影响7．protection n．保护8．energy－saving adj. 节省能源的9．annual adj. 每年的10．severe adj. 严重的11．shortage n．短缺12．crisis n．危机13．ecology n．生态学14．output n．产量15．worsen vt. 使更糟[话题短语]1．dueto由于2．callon号召3．dealwith解决4．focuson集中于5．getridof去除，消除6．befacedwith面对7．beconcernedabout关心8．leadapoorlife过着贫穷的生活9．withthedevelopmentofeconomy随着经济的发展10．haveaneffect/influenceon...对……产生影响11．improvetheenvironment改善环境12．watershortage用水短缺13．urbanandruralareas城镇与农村14．awell－offsociety小康社会15．onalargerscale大量地[话题佳句]1．Nowadaysmanycountriesarefacedwithfoodcrisis.现在有一些国家正面临食品危机。
2．Insomeareas，peoplearefightingforgettingridofstarvation.在一些地区，人们正为消除饥饿而斗争。
3．Theclimatewhichhasbeenchangedseriouslyhasagreateffectontheoutputofgrain.变化剧烈的气候对粮食的产量影响很大。
人教高中英语必修4《Unit2Workingtheland》Grammar2学案
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教学设计 The
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八、检测与纠错
高中英语学案大全，高考学案大全
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2019年高考英语一轮复习精品资料专题02 Working the land(教学案)(必修4)含解析
2019年高考英语一轮复习精品资料【高频单词】1．expand (vt.&vi.) 使变大；伸展→expansion (n.) 扩张；扩展2．reduce (vt.) 减少；减缩→reduction (n.) 减少；缩小3．skim (vt.) 浏览；略读→skimmed (过去式/过去分词)4．underline (vt.) 画底线标出；强调5．struggle (vi.&n.) 斗争；拼搏；努力6．output (n.) 产量；输出→input (n.) 投入；输入7．therefore (adv.) 因此；所以；因而8．regret (vt.) 遗憾；惋惜 (n.) 遗憾；懊悔→regretted (过去式/过去分词)→regretful (adj.) 后悔的；失望的；遗憾的9．focus (n.) 焦点；中心点 (vt.) 集中；聚焦10．comment (n.) 评论；议论 (vi.&vt.) 表达意见；作出评论11．circulate (vt.&vi.) 循环；流传→circulation (n.) 循环12．export (vt.&vi.) 输出；出口→import (vt.&vi.) 输入；进口13．hunger (n.) 饥饿；欲望 (vt.&vi.) (使)饥饿→hungry (adj.) 饥饿的14．disturbing (adj.) 引起烦恼的；令人不安的→disturb (vt.) 搅乱；弄乱；干扰15．freedom (n.) 自由；自主→free (adj.) 自由的；自主的→freely (adv.) 自由地；自主地16．equip (vt.&vi.) 配备；装备→equipment (n.) 装备；配置→equipped (过去式/过去分词)17．occupation (n.) 工作；职业；占领→occupy (vt.) 占领；占据18．confuse (vt.) 使迷惑；使为难→confusion (n.) 困惑；迷惑19．production (n.) 生产；制造→produce (vt.) 生产；制造→product (n.) 产品→producer (n.) 生产者；制片人20．discovery (n.) 发现；发觉→discover (vt.) 发现；发觉21．chemical (adj.) 化学的；关于化学的→chemistry (n.) 化学22．summary (n.) 总结；摘要；概要→summarize (vt.) 总结；概括；概述23．nutrition (n.) 营养；滋养；食物→nutritious (adj.) 有营养的；营养丰富的【重点短语】1．thanks_to 幸亏；由于；因为2．get_rid_of 摆脱；除去3．be_satisfied_with 对……感到满意4．would_rather 宁愿；宁可5．build_up 逐渐增强；建立；开发6．lead_to 导致；造成(后果)7．focus_on 集中(注意力、精力等)于8．be_rich_in 盛产；富于9．keep...free_from/of 使……免受(影响、伤害等); 使……不含(有害物)10．prefer...to... 喜欢……胜过……11．make_a_difference 有关系；有影响【热点句型】1．if so状语从句的省略形式If_so (如果这样的话), what did you do to grow them?2．the＋序数词＋名词＋动词不定式In 1973, he became the_first_agricultural_pioneer_in_the_world_to_grow_rice (世界上第一位种植水稻的农业先锋) that has a high output.3．make it＋adj.＋动词不定式This special strain of rice makes_it_possible_to_produce (使生产……成为可能) 20% more of the crop in the same fields.4．would rather do... “宁愿做……”He would much rather (宁愿) keep time for his hobbies.5．倍数＋as...as...Using his hybrid rice, farmers are producing harvests twice_as_large_as_before (比以前多了一倍).高频考点一单词例1、struggle vi.努力；奋斗；同……斗争；挣扎；奋力前进n．竞争；努力；奋斗Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, for whom he has struggled for the past five decades的确，他那被太阳晒得黝黑的脸庞和手臂，以及他那瘦削而又结实的身体，就跟其他数百万的中国农民一样，过去50年来，他一直在努力帮助他们。
人教新课标英语必修4全册教案(Unit 2 Working the land)
人教新标英语必修4全册教案(Unit 2ring the land)Unit2ringthelandTeahingais:1TargetLanguageardsandph rasessunburn,struggle,super,expand,irulate,equip,ex prt,ridf,besatisfiedith,leadalife,searhfr,uldrather,tha nst,iththehpef,ratherthanbIprtantsentenesThisspeial strainfrieaesitpssibletprduene-thirdreftherpinthesa efieldsP10Heareslittleabutspendingthenenhiselfrlead ingafrtablelifeP102AbilitgalsEnableSstlearnreabutag riulture,untrsideandfaringBtalingtheanexhangetheire xperieneitheahtherBreadingtheillrealizetherlethatag riultureplasinhuanlifeInfatthisrldfaesaseriusprble—starvatinSafterreadingthepassageabutDruanstudentsil lntheiprtanefhisahieveenttanfursetheilllearnfrDruan senbleharater3LearningabilitgalsHelpSslearnhtdesrib eDruanLngpinginludinghispersnalitTeahingiprtantpint saHelptprehendthetextandgrasptheainideafthetextbGrasptheusagefserdsandexpressinsHthelpstudentsaeupthei rindstaentributinsttherlandinthefuturelieDruanTeahi ngdiffiultpintsaHthelpstudentslearnreabutagriulture bHelpstudentsreallastertheusagefrdsandexpressinsTea hingethdsTaling,questining-and-anseringativitandrea dingTeahingaidsAtapererder,apretrandaputerTeahingpr edures≈≈asThefirstperidReadingStep1GreetingandRevisin1Greetthestudentsasnral2RevisethearingupiththefllingquestinHduthintgrurainfd--rie?-----1)First,thefarersplthefieldThehavetaeth esillseenughtplantrps2)Send,grseungplants3)Third,th einserttheungplantsintthelsefield4)Atlast,theillget theharvestStep2Pre-reading1Asthefllingquestins1)hat’stheainfdinanadaandUSA:-----ptatesandbread2)hatisth eainfdinSuthAeria:-----rn/aize3)hatistheainfdinSuth eastAsianuntries:-----rie2Shthestudentssepituresandasthequestinhatis happeningtthesepepleinEastAsianandSutheastAsianuntr ies?Thenshrenesliethat:InternatinalFatsnHungerandPvert1)Ever8sends,ahildsehereintherlddiesfrstarvatin2 )rethan800illinpepleintherldsufferfralnutritin---79 9illinfthearefrthedevelpingrldrethan13illinftheareu ndertheagefAtlastasthestudentstdisuss:Ifuhadthehane tdsethingthelpendhungerintherld,hatuldud?Enuragethe studentsttelltheirpinins,Thengiveanlusin:Thenlatslv ethefdshrtageprbleistinreasetheutputfthegrainrpperl andareathrughtheadvaneentfsieneandtehnlg3leadthestudentstpaattentintthepeple---uanLngpingAs: hatdunabuthi?--------FatherfHbridRieThenleadtthetpi fthereadingpassageAPineerFrAllPepleStep3ListeningLi stentthetape,trtfindutseinfratinftheherNae_________ ___Age____________b_____________Eduatin_________Ahieveent_______Hbbies __________Step4FastreadingReadthepassagequilandanse rthetrue-r-falsequestins•Druanisreafarerthanasientist•2Druan’sindfrieisthestsuitablefrhina’sfarland•3Druanuldratherrthanrelax•4Druanhasdreashenheisasleepandalshenheisaae•DruanensasiplelifethanstrihandfauspepleSteparefulre adingReadeahparagraphandanserthefllingquestins:Para 1:1hatdseDruanllie?h?2hatishisahieveent?Para2:hdidD ruananttinreasetherieutputhenheasung?2Hdeshehelprid therldfhunger?Para341hatindflifeisDruanleading?2hat isDruan’sdrea?Step6Siing:finduttheainideafeahparagraphParag raphainIdea1Hisappearaneandahieveents2Hisbirth,eduatinandresearh3H ispersnalit4HisdreaStep7Her1LearnthepeThePeasants’LtLiShenFarerseedingatnn,Seatdnthefieldsnhnsfdnatra,D uettheirtilingda?2FinishtheexerisesinLearningabutLa nguage3Retellthetextinabut10rdsNtes:aUsethefirstpersntretellthestrbTrtusetheprpernuntin sThesendperidLearningabutLanguageAisThelpstudentsle arnabutThe–ingfrastheSubet≈betThelpstudentsdisverandlearntu seseusefulrdsandexpressinsThelpstudentsdisverandlea rntuseseusefulstruturesPreduresIaringuparingupreadi ngaludthetextAPINEERFRALLPEPLELanguageislearnedinnt extSlet’sfirstreviethetextlearnedesterdabreadingitaludTrtfr euturEnglishsllandlearlIIDisveringusefulrdsandexpre ssinsInpairsdtheexerises1,2and3npages11and12uustfin ishtheininutesIIILearningabutgraar1ReadandidentifReadthetextabutuanLngpingagain,painga ttentintthesenteneshihusethe–ingfrasthesubetandbetInthesentene“ishingfrthings,hever,stnthing“the–ingisusedassubetItanbealsusedasbetfthesenteneFrexap le:uanLngpingliesplainghisvilin2nslidatingbdexerisesTnslidateurunderstandinguillbeg iven10inutestgverexerises1,2,3,4andnpages12and13uaustritenurtextbIeanthestudent’sbuareringbIIIReadusedaterialsfrThe–ingfrastheSubet≈bet)语法学习——动名词1动名词作主语1）名词直接放在句首作主语。
2021届高三英语人教新课标一轮复习导学案必修四Unit2Workingtheland
必修四Unit 2 Working the landⅠ.单词—在语境中默写，在联想中积累[写得准][用得活][积得多]1.struggle vi.& n． 斗争；拼搏；努力2.therefore adv. 因此；所以；因而3.regret vt. 遗憾；惋惜n. 遗憾；懊悔4.focus n. 焦点；中心点vt. 集中；聚焦5.reduce vt. 减少；减缩ment n. 评论；议论vi.& vt. 表达意见；作出评论7.expand vt.& vi. 使变大；伸展8.confuse vt.使迷惑；使为难→confusing adj.令人迷惑的→confused adj.感到迷惑的→confusion n．迷惑9.freedom n．自由；自主→free adj.自由的10.export vt.& vi.输出；出口→import (反义词) vt.& vi.输入；进口11.discovery n．发现；发觉→discover vt.发现；发觉→discoverer n．发现者12.disturbing adj.引起烦恼的；令人不安的→disturbed adj.扰乱的→disturb vt.扰乱；打扰13.hunger n．饥饿；欲望vt.& vi.(使)饥饿→hungry adj.饥饿的14.circulate vt.& vi.循环；流传→circulation n．循环15.equip vt.& vi.配备；装备→equipment n．设备(不可数)用所给词的适当形式填空1.Women have gainedthe freedom (free) todecide whether or notto marry.2.I began to take upthe occupation(occupy) as a teacherin my twenties.3.As a matter offact, the childrenall have differentpersonalities(personal)．4.Disturbing newscame that the virusspread quickly, whichmade us ratherdisturbed.(disturb)5.Our school offersgood equipment andyou will be wellequipped withknowledge and skillsfor your futurejob.(equip)6.He was reallyconfused by theconfusing problemwhich also confusedother people for a1.“评论”名词知多少①comment 评论；意见；批评②remark 评论③review 回顾；复习；评论④criticism 批评；(尤指对书、电影等的)评论2.“扩展”动词全接触①expand 扩展；扩张；膨胀②enlarge 扩大；放大③spread 扩展；蔓延；传播④extend 延伸；扩大3.以dom为后缀的名词一览①freedom 自由②newspaperdom 新闻界③kingdom 王国④wisdom 智慧4.加后缀ment构成的名词面面观①equip→equipment 装备②develop→development发展③argue→argument 争论④establish→establishment建立⑤employ→employment 雇用⑥improve→improvement16.personality n．性格；个性；人格→personal adj.个人的→personally adv.亲自地；就自己而言17.occupation n．工作；职业；占领→occupy vt.占领；占据long time.(confuse)7.Owing to the greathunger,_a greatnumber of hungrychildren died.(hunger)8.The discoverer ofelectricity wasFranklin; like manydiscoveries,_itbenefits usgreatly.(discover)提高⑦amuse→amusement 娱乐⑧assess→assessment 评估⑨agree→agreement 同意⑩achieve→achievement 成就Ⅱ.短语—在应用中记牢，在归纳中记多[写得准][用得活][积得多]1.thanks_to 幸亏；由于；因为2.rid_...of 使……摆脱或除去3.be_satisfied_with 对……感到满意4.would_rather 宁愿；宁可5.build_up 逐渐增强；建立；开发6.lead_to 导致；造成(后果)7.focus_on 集中(注意力、精力等)于8.be_rich_in 盛产9.keep_...free_from/of使……免受(影响、伤害等)；使……不含(有害物)10.in_addition 另外选用左栏短语填空1.When Lisa stoo d beforethe audience, she felt veryuneasy with all eyesfocused_on her.2.Modern science has givenclear evidence that smokingcan lead_to many diseases.3.We cannot really learnanything until we ridourselves of being tooproud.4.Thanks_to these newtreatments, people withhigh blood pressure canlive a long and active life.5.To be mentally healthy,you need to build_up goodrelationships with eachother.“be＋adj.＋with”高频短语集锦①be satisfied with 对……满意②be content with 对……满意③be pleased with 对……满意④be angry with 对……发怒⑤be familiar with 对……熟悉⑥be bored with 对……厌烦⑦be busy with 忙于……⑧be popular with 受……欢迎⑨be patient with 对……耐心⑩be strict with 对……严格要求Ⅲ.句式—在解读中学懂，在仿写中学通[背原句][记句式][会仿用]1.If so, what did you do to grow them？如果是这样的话，你怎样来种植这些植物？if so意为“如果是这样的话”，是if引导的条件状语从句的省略形式。
2022年人教版高考英语考点复习必修4 Unit 2 Working the land
Unit 2Working the landA Shepherd Saved Six Runners from Extreme Weather duringDeadly Ultra-marathon in China中国牧羊人从极端天气中救下六名超级马拉松选手A shepherd in northwest China has been credited with saving six trail runners from dangerously extreme weather, according to state media. Twenty-one other runners died during the 100-kilometer (62-mile) race on Saturday.According to China National Radio, Zhu Keming was grazing his sheep near the high-altitude Huanghe Shilin Mountain in Gansu Province when the weather turned sour. He sought refuge in a cave where he had stored some firewood and clothes near the running trail.“The weather that day was really uncommon. It was foggy and raining and windy and sometimes hailing(下冰雹). That kind of weather is really rar e, ” Zhu told China National Radio.As temperatures dropped, runners started reported suffering from hypothermia(体温过低), while others went missing. Marathon organizers called off the race and launched a search party of 1, 200 people to scour(搜查) the complicated terrain(地形), in an operation that continued after dark.主题语境人与社会课标话题对社会有突出贡献的人物思维品质通过了解文章的内容, 理解一位平凡的人做的不平凡的事情, 激发学生们养成热心助人的优良品格。
高中英语_unit2workingtheland教学设计学情分析教材分析课后反思
Unit2 Working the Land教课方案课题 A Pioneer for All People 课时1课型Reading设计者审核：使用时间学生笔录栏*Learning goals ( 学习目标 )1.Master the main idea of the text by scanning, skimming and careful reading.2.Students will be able to give a brief introduction on Yuan Longping as well as the general idea of the text.3.Learn some key words and phrases.*Pre -class activities( 课前活动）1.Form groups.2.Get your attention.*Teaching procedures ( 教课过程 )StepⅠ: Warming -up:Introduce my favorite APP to students to attract their attentionStepⅡ. Leading -in:A little quiz and a video about Yuan Longping.StepⅢ. Read for structureMatch the main ideasPara.1 A. Dr. Yuan’ s dreams.Para.2 B. Dr. Yuan’ s attitude to life Para.3 C. Dr. Yuan’ s brief life experience整体感知，建立语篇Para.4D. Dr. Yuan ’ s appearance and his achievementStep Ⅳ.Read for detailsRead the passage carefully and finish the following activities. 1. Read para.1 carefully and fill in the blanks:Yuan Longping thinks he is a _______ as well as a scientist. He has ______ face and arms and a_______, _______ body.He works hard and grows super ______ rice. In 1974, he became apioneer to grow rice that has a high______ .2. Read para.2 and finish Yuan’ s biography: Timeinformation1930_______in Beijing1953____________from college1.________ was a great problem.As a young man 2. Saw the great need for ____________the riceoutput.In a recent ______ million tons was producedharvestnow ____________ his knowledgeRead para.3 carefully and finish the following activities. (1) Underline the topic sentence of para.3.(2) Find out the personality and hobbies of Yuan Longping.He doesn ’ t care about ___________. He likes ________for his search and hobbies.Hobbies:Listening to ___________; Playing__________; _______ and__________ Read para.4 carefully and finish the following activities. (1)Underline the topic sentence of para.4.(2)Find out the two dreams of Yuan Longping.The first dream:____________________________________________阅读感悟、细节 掌握Nothing is difficult if you put your heart into it.世上无难事，只怕居心人_________________________________________________________The second dream:_____________________________________________________________________________________________StepⅤ Read for Summary（方法指导：仔细回想，掌握所学内容）Your summar yYuan Longping was a pioneer of agriculture in China. Hegraduated1.________Southwest Agricultural College in 1953. Since thenhe devoted himself to2.________(find) ways to grow more rice. Therice3._________(farm) are now producing harvest twice as large asbefore4.______using his kind of rice. But he was not 5._______(satisfy)with his work. Although now he6. _______(lead) a rich life, he stillkeep7._____doing his work to develop his rice. Now he dreams of 8._________(export) his rice so that it can be grown all over the world.StepⅥ Read for dreamWhat’ s your dream?What should you do to make your dream come true?StepⅦ Homework1.statistics ----would rather2.Recite para.13.Xueandaoxue p26---p29Feedback after Class (课后反省 )_________________________________________________________________________________________________________________________________________________________________________________学以致___________________________________________________________用____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Nothing is difficult if you put your heart into it.世上无难事，只怕居心人___________________________________________________________ ___________________________________________________________Unit 2 Working the land 学情剖析学生对本单元的主题“农业耕种”的话题是十分的熟习，并且大部分学生都来自乡村，他们对农业的耕种有必定的认识与看法。
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必修四Unit 2 Working the land复习学案第一、二、三课时（单词和短语）【学习目标】：1.重点单词：2.重点短语：【学习重点】：掌握本单元重点单词和重点短语的用法并灵活运用。
【学习难点】：根据语境运用重点单词和短语，重点句型的运用。
预习任务一、高频词汇拼一拼1. He has made a (总结) of the main points in the Secretary General’s speech.2. He made some ________ (评论) about my dress, and then carried on reading his book.3. His work can’t be appreciated by all the audience, whose attention may focus on only some ________ (超级的) stars.4. In all, Columbus made three more voyages during the next ________ (十年).5. He returned from Paris and found his office was under someone else’s ________ (占领).6. Her unexpected arrangements ________（搅乱）all our plans.7. We took the opportunity to ________ (交流) experience with them.8. He has a (晒黑的) face and bright eyes.9. The factory must increase its ________ (产量).10. After a long s ________, he gained control of the business.11. Our foreign trade has e _________ greatly in recent years, bringing in more money.12. The girl s ________ her mother by cleaning up the kitchen.13. As is known to all, coal and iron are m __________.14. She r _______ her weight by 5 kilograms and she got slimmer than before.15. The school p________ books for children, which made their parents satisfied.二、重点短语写一写1. 幸亏；由于；因为2. 摆脱；除去3. 对……满意4. 逐渐增强；开发；建立5. 保护……免受……6. 有机会做……7. 通向；导致 8. equip…with…9. be suitable for 10. with the hope of11. for sale 12. be rich in13. take turns 14. as a result三、经典句型译一译1. 袁隆平教授种植所谓的超级杂交水稻。
(what)____________________________________________________________________2. 这种特殊的水稻有可能比以前的水稻在相同面积大的田地里多产三分之一。
(make it possible)_____________________________________________________________________3. Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields._____________________________________________________________________4. Using his hybrid rice, farmers are producing harvest twice as large as before. _____________________________________________________________________5. One dream is not always enough, especially for a person who loves and cares for his people._____________________________________________________________________ 四、完成《高考零距离突破》P106温故知新、P109基础过关课堂探究单词精讲1. struggle【镜头回放】…for whom he has struggled for the past five decades.【语用提示】vi.& n.斗争；拼搏；努力struggle for为……而斗争struggle with / against与……作斗争struggle to do sth.努力做某事struggle to one’ s feet挣扎着站起来They were struggling to get out of the burning car.他们挣扎着从燃烧的车里爬出。
【词语辨析】struggle/fightstruggle指较长时间的、激烈的斗争，往往指肉体及精神上的战斗。
fight意为“搏斗；打斗；打架”，表示“斗争”时，包含体力和勇猛的因素。
This struggle brought good results.这一斗争取得了可喜的成果。
【考题预测】1) He fell ______ a rock in his walk and ______ to his feet.A. over; struggledB. off; ranC. over; stoodD. off; brought2. expand【镜头回放】Dr Yuan searched for a way to increase rice harvest without expanding the area of the fields.【语用提示】v.扩大；扩展；增加；增长；（使）膨胀；阐述；使变大expand...into...将……扩展/发展成…… expand on 阐述；详谈In ten years the city’s population expanded by 12%. 十年之中，该市人口增加了百分之十二。
【归纳拓展】expansion n.展开；膨胀；扩展 expansive adj.广阔的；易膨胀的Expansion of domestic demand should be strengthened. 扩大内需必须加大力度。
【词语辨析】expand，extend和spreadexpand 意为“展开；扩大”，不仅指尺寸的增加，还可指范围和体积的扩大。
extend 意为“伸出；延伸”，指空间范围的扩大，长度、宽度的向外延伸及时间的延长。
spread 意为“传播；蔓延；铺开”。
一般指向四面八方扩大传播的范围，如传播（疾病），散布（信息）等。
【考题预测】2) As we all know, a balloon ______ when it is blown up.A. spreadsB. extendsC. expandsD. widens3. therefore【镜头回放】This affects crops and, therefore, animals and humans since chemicals get inside the crops and can’t just be washed off.【语用提示】adv. 因此；所以；因而 therefore 表示“因此；所以”之意，但它是副词而不是连词。
We have a growing population and therefore we need more food.我们的人口在日益增长，所以我们需要更多的食物。
【词语辨析】therefore，so和thustherefore是副词，不可单独连接两个独立句，而须添加and等连词或另起一句，放在句子中，前后要有逗号隔开；so用作并列连词，“因此”；thus作副词，“如此地；这样地；因而；从而”。
I was ill and therefore I couldn’t go to the party. = I was ill so I couldn’t go to the party.= I was ill, thus causing me to be unable to go to the party.我病了所以不能去参加这个聚会了。
【考题预测】3) We don’t have enough money. We, ______ , can’t afford to buy the car.A. thereforeB. soC. howeverD. thus4. equip【镜头回放】He therefore gives millions of yuan to equip others for their research in agriculture.【语用提示】vt.& vi.配备；装备equip sb./sth. with 用……武装某人；用……装备某物equip sb./sth. for 为……而武装某人；为……而装备某物A good education should equip you for life. 良好的教育能使你受用终生。
【归纳拓展】equipment n.[u]装备；设备a piece of office equipment 一件办公设备The complete equipment of the new hospital will take a year. 彻底装备这所新医院要花费一年时间。
【词语辨析】equipment和 instrumentequipment指成套的装备、设备、器具；instrument指科研、实验仪器或乐器等。