高中英语人教版必修三Book3 Unit 4 导学案(3课时)

Unit4:of学Warming第一课时学习目标：1.了解宇宙科、地球生命的起源，了解万有引、黑洞和太空旅行等天文学知识，培养学生对科学的兴趣，激发学探求科学的热情。2.了解作者的作特点，培养学生的创造性思维为学生开拓广阔的想象空间。3.掌握本单元词汇和习惯用法。4.学会在日常活中正确运用指示语。5.掌握名词性句中主语从句的用法。语篇解读：I.Readpassageandanalyzeits结)Writedowntheforabout（形成______________idea

2:_________________________oftheearth3:Theimportanceof4:Theof5:Thearrivalof__________and________________________II.SecondReadpassageandchoosecorrect1.itfortoontheaccordingtopassage?HarmfulgasesB.WaterCarbondioxide2.Whichisthefollowingappearanceonc.reptilesa-d-c-e-bB.a-d-b-c-eD.c-d-a-e-b3.WhichthefollowingNOTtruetheTheytheiryoungbyeggs.Someofthemwerewithinbodies.D.oncelivedtheearthforofyears.4.istheproblemsolvedforlifeonB.WaterAidsGlobalwarmingIII.ThirdreadingrightorderofoflifeintoUsereadingtohelpyou.()appeared.()Dinosaursappeared.()earthasolid()Smallonthewater.()appeared.()begantoondry()earthacloudof()8Waterappearedthe()andotherfish()10Theuniversebeganwitha“Big”()11animalswithfeetappeared.()12appeared.IV.thesesentencesinto1

1.①earthsoitnotwhetherthewouldlastnot.在此句中it作_whether引在中引导②Itwasimmediatelyobviouswastobetodevelopmentof在此句中it作_引_____________.befundamentalto...……的基础2.①.Whatittobecomewasuncertainbetween3.8billionagowhenintoa在中引when在中引导_______________,句中修_______________.to①安顿来；②习惯于（新居适（新工）②evenmoreistheearthcooledwatertoonitssurface.在中引在中引导_①冷冷却下来②静下来③.Whytheydisappearedstillremainsmystery.在中引导remain________________④whetherlifewillcontinueonearthformillionsofyearscomewilldependonproblembe第一个在中引导_______________.第个在句引导_come在句中____________,表示_3.①accordingtowidelythebeganwithaBigBangthatthrewmatterinallthat在中引导______________,用修inalldirections=indirection向面八方②Thisareaction,whichitpossibleforlifewhich在中引导用修it在中_develop句中______________.2

Book3

Unit:ofWarming第二课时

导学案学目：1.解宇宙科学地生命的起源了万有引黑和太空旅行等天文学知，培养学生对科学的兴趣，激发学生求科学的热情。2.解作者的写作特点，养学生的创造性思维，为学生开拓广阔的想象空间。3.握本单元的词汇和习用法。4.会在日常生活中正确用指示语。5.掌名词性从句中主语从句的用。知导：1.本原句However,accordingto___________________________________(一种普遍为人们所接受的理论)theuniverse起源)aBig”threw_____________________(四面八方。①with以…开始在句中谓语。反义词组：endwith...以……结束e.g.withafamous②begin/with首先；第一这个词组可以单独使用，在句中间语begin/with,Icouldnt起初，我一句也没弄明。2.本原句:They______________最终产)carbon,nitrogen,waterandother_____________________theatmosphere.从形成了地球的大气层)in及时终联系有关time的语①立，马上②time提③forthe暂时；眼下④在任何时候都，绝innoway放在句首，引起分装⑤s从不迫；慢来（强调时间上不紧，不用紧张）区别：takeiteasy轻；不紧张；从容（强调神上不紧张，从容）atmospheren.大气；气氛在友好的气氛中__________________________“不定结在此处表示注会发生的事。例如：tothatdecisiontherestlife.regretit.)另外，be+不定式结构还可以示：①必须或应该做事②按划或安排做某事③于条件句中，表示“想要”①messageforfromyourteacher:goherofficeafterclass.②Theybemarriedin③suchdrythewillhavetobeiftheysurvive.3.课原句:young_________________________（们一般是通孵蛋而繁衍后代的lie,lay在很时候容易混淆，它们的区如下：动词原形第人单数过去式过去分词现在词中释义lielielay

撒谎；谎话3

4.课原句:laideggsand_______________________(在地球上生存)forthan140millionyears.exist存在；生存

n.existence存

comeintoexistence产生；成立句型“exist主+点状语”表示某处有某物可用的动词还有stand,live,follow,remain.例如：infrontofour在我们教学楼前一棵高树。5.本原句:_______mystery.它们为什么会突灭绝至今还是个谜。remain①link.V.（继续）保存，仍然仍然处于（某种状态）结构：remain+adj./n./如：依然沉/站着坐着______________________________________②剩，残存；逗留，留下不能于动Verylittleofhouseafterfire.火后，这座房子所剩无几。③remain还经用于be句中，代替be动。Thereremainedproblem.还一个重要的问题。④remaintobedone有待于……，留待于……Ittobewhetheryouright.你说对不对还有待证。拓展：_________n.剩物；废墟_________adj.剩的常做前置定语；而left表“余的”时，常做后置定)如：剩余的钱themoneywhatisleftof....余的……6.课原:Thustheyintheirturnbecomemostimportantanimalstheplanet.insturn轮某；接着归纳：与有关短：①依次，轮流；相应地转而

联系：作为回报；作为答②by轮地③turnsto轮干某事与turn(v.)有关短语turnto①求助于②力于③转④到⑤变turnupvi.出；到场vt.开大；调高turnoneto背对背弃turn（使）变成

turndownvt.①小；调低②绝turn转向；回转turnvt.&vi.（）翻身翻转turnout①原来是；证明是；结果是）后接be+②……地发展或发生果(副词连用，或用于以how引导的疑问句)③制造；生产7.课原句:aretoomuchdioxideinto________________________________________这使得地球上的热不能释放到太空去。阻止某人做某事prevent/sb.(from)keepsb.doingsth.联系：保护……受…____________________________4

Book3

UnitAstronomy:stars

导学案Learninglanguageand第三课时语解：thesesentencesandthem.1.LastmonthIwasenoughhavemaketripintospacewithLian修形容词副词时，放_____________;修饰名词，放。havea有机会干某事

an在中做。2.weleft,Liforceofgravitywouldchangtimesonfirstwouldbepowerful.第一个that引_______句第二that引导从句；其中_个不以略。3.Iupimmediatelyourspaceshipwatchingandmoonlarger.up/cheersb./感高兴；感到振奋联系：sb.on赛跑、比赛等中）以喝彩声励；为（某人）加油theandlarger在中____________.4.Wewatched,asfirebroketheofthethesgravityincreased.…在句____________,修饰第一个的思___________;二个的意思为。知导：1.课原句Whenwegettomoon,weshallfeelitsgravity__________(拉us,itwillas⑴feel/see/watch/hear/noticedoing/do作宾补____________正在进行的动作；__________则表示事情展的全过程。⑵piano;you________andI'll_________.(push/pull)⑶表同级较结构①as+adj./adv.+ashouseisasneighbour②Weasbigaours5

③(much此表程度holdtheOlympicGamesatowinOlympic④不数词/many+可数名词数+as(处表数量Returnmanymoney2.课原句:ButwhenItoIfoundIwastwicefarasonthefell倍数的常用表达式：①Ais+倍+as+as②Ais倍+adj./adv.比较级)B③Ais倍++/weight/…)ofB例如：这个房间那个房间的4倍。room4asthatone.=roomis=Theroomistimes3.本原句:watched,amazedasfiretheofthetheearthincreased.breakvi.（战争、火灾、疫等）突；爆发breakup打碎;分裂;解体

breakup同某人绝交breakvi.①(机器损坏；破坏②谈）失败③（身体）垮神崩breakinto①强行闯入；破门而入②然……起来into/burstintolaughterbreakinvi.闯入；打(sth.)6

Book34Astronomytheofthe答案第一课时语篇解读：I:ParagraphAwidelytheoryaboutofuniverseTheformationtheearthTheforlifeTheofanimalsontheearthThear