山东省新泰市第二中学高中英语 Unit 4 Wildlife Protection单词教学案 新人教版必修2

Part 1 Warming Up, Pre-reading, Reading & Comprehending基础过关练Ⅰ.单词拼写1.The US recorded a sharp (减少) in foreign direct investment of 49 percent, while the European Union suffered a 71 percent drop.2.More and more students want to (搜寻)for a job in the city after graduation.3.It is (确定)that 5G technology will deeply transform our lives and our society.4.Students should learn to (克制) their feelings when getting along with others.5.Changes in farming methods have badly (影响) employment in the area.6.More than 3,000 local workers are (雇用) in the tourism industry.7.I would a it if you could clean the carpet and rub the table.Ⅱ.选词填空1.As we all know, many endangered species their natural enemies in this reserve.2.Not until we succeed in letting wildlife live can we smile in relief.3.These are the problems that controllers of free tax zones and businesscircles .4.Therefore, “haha point” refers to the certain threshold (临界点) where you can be amused and .5.The wild koalas are nearly .6.When she was told the insect biting her was not poisonous, shesmiled .7.Lots of animals are disappearing from the earth with people hunting them more and more often.Ⅲ.单句语法填空1.The trees form a natural (protect)against the sun's rays.2.The (lose) of some endangered animals will destroy the balance of nature.3.To our (relive), these endangered species are under the protection of the local government.4.China has been attaching high (important) to developing the seed industry to ensure food security.5.A vaccine is a (power)weapon against the pandemic.6.To our joy, Chang'e 5 returned to the earth with lunar soil (successful).7.The heavy schoolwork burden is (harm)to teenagers' health.Ⅳ.课文语法填空Daisy had always longed to help endangered species of wildlife. One day she woke up and found a 1 (fly)carpet. She asked it to take her to a 2 (distance)land where she could find the animal that gave fur to make her sweater. At once the carpet flew away and took her to Tibet 3 Daisy saw an antelope looking sad. The antelope told her that they were being killed for the wool and that as 4 result, they were an endangered species.Then the carpet took Daisy to Zimbabwe where Daisy found that she 5 (watch)by an elephant. The elephant told Daisy that farmers used to hunt them 6 mercy, but afterwards the government took some measures 7 (save)the wildlife. The carpet rose again and almost at once they were in a thick rainforest. She was amazed to find a monkey protecting 8 (it)from mosquitoes by rubbing a millipede insect over its body. The insect contains a 9 (power)drug which affects mosquitoes.When Daisy woke 10 , everything disappeared, but Daisy learned a lot. 1. 2. 3. 4. 5.6. 7. 8. 9. 10.能力提升练Ⅰ.阅读理解A(2021河南名校联盟高一上期中,)New research suggests that human beings may have been partly responsible for the disappearance of cave bears thousands of years ago, when the plant-loving animals lived. Some experts believed that the cooling climate during the Ice Age was to blame for their extinction.Scientists reported last week they had studied genetic data from 59 cave bears. Their bones were recovered from seven countries: France, Germany, Italy, Poland, Serbia, Spain and Switzerland. From the genetic information, the scientists noted a decrease in the cave bear population beginning about 50,000 years ago. That is around the time of the arrival of Homo sapiens (现代人), or modern humans, in Eastern Europe. The researchers said they observed a sharp drop in the bears' numbers about 40,000 years ago. That coincides with(与……同时发生) the spread of Homo sapiens throughout Europe.The animals disappeared about 20,000 years ago. The cave bear lived in the Ice Age at the same time as other now extinct creatures. The bear was as big as a modern polar bear, but ate only plants. It appears often in prehistoric(史前的) cave paintings.There has been a scientific debate about what led to the extinction of the cave bear. Some scientists believe that the climate change greatly reduced the plants they needed, while others have blamed it on human activities, including hunting and taking over the caves where the bears gave birth and slept during winter. The bear's population remained largely unchanged for long periods before climate cooling, including during two noticeably cold periods and other cooling events.Homo sapiens appeared in Africa more than 300,000 years ago and later moved to other areas. The study offered new evidence that the arrival of Homo sapiens led to ruin for many kinds of animals across Eurasia, the Americas and Australia.1.How did scientists research on cave bears?A.By studying the bones found in some countries.B.By observing the paintings on the cave walls.C.By being told from generation to generation.D.By do research on the polar bears.2.When did the cave bear die out?A.About 50,000 years ago.B.About 40,000 years ago.C.About 20,000 years ago.D.More than 300,000 years ago.3.What can we learn according to the fourth paragraph?A.Sudden change in climate made cave bears die out.B.Cave bears couldn't adapt to the cold environment as quickly as possible.C.The loss of cave bears' habitats caused damage to their existence.D.Cold periods were very common thousands of years ago.4.Which of the following is the best title for the passage?A.Humans Are Perhaps Partly to Blame for Cave Bears' DisappearanceB.Homo Sapiens Hunting Kinds of Animals across EurasiaC.A Debate about Why Cave Bears Suddenly DisappearedD.Scientists Studied Bones Discovered in Seven CountriesB(2021河北邢台高一上期中,)It is widely believed that biodiversity (生物多样性) is promoted to save species. But in reality species exist only as part of ecosystems and cannot survive unless their ecosystems are protected along with the diversity they contain as much as possible.Protecting habitats is important for keeping biodiversity. In 2003, over 102,000 habitats covering nearly 19 million square kilometres, or 11.5% of theworld's land surface,were under some form of protection. Though this has been a great improvement since 1962, when just l,000 protected habitats were listed, it is still not considered enough to stop the ecocide that is endangering the world's biodiversity.For a number of environmentalists, protecting the world's 25 biodiversity hotspots(热点地区) is critical to saving habitats and species. But many hotspots are endangered already, having lost up to three-quarters of their original plants.The poor state of most biodiversity hotspots results directly from population growth and migration(迁移) into these areas. A study found that by the mid-1990s around 1.1 billion people had lived in these hotspots. Moreover, the annual population growth rate in these areas was 1.8%, higher than the global average of 1.4%. The PAI report concluded that human-related environmental changes would continue to put pressure on hotspots. Therefore, keeping biodiversity requires paying close attention to population size.Protecting hotspots is not simply a matter of putting up fences or employing guards. The best results will be achieved when local people are educated about the value of wildlife, and actually gain a share of the benefits from eco-tourism. Only then do they have a chance to see the benefits of protecting hotspots.5.What can we infer from Paragraph 1?A.The loss of any species can affect humans.B.Endangered species are paid more attention to by humans.C.Species can still survive when their ecosystems are destroyed.D.Ecosystem protection is as important as diversity protection.6.What does the underlined word “ecocide” in Paragraph 2 mean?A.Ecosystem protection.B.Reduction in the number of species.C.Serious damage to habitats.D.Habitat protection.7.What's the direct cause of the terrible state of the hotspots?A.Population growth in hotspots.B.Migration out of these areas.C.Global warming.D.The global average population growth rate.8.What's the author's opinion on protecting the hotspots?A.It's simple to carry out.B.It leads to the increase in tourists.C.It's closely connected with local people.D.It suggests that the local people be well educated.Ⅱ.七选五(2020山东德州高一上期末,)China has made great improvements in environmental protection during the past 70 years. 1 Each species on Earth has a role to play in the ecosystem.In recent decades,a series of wildlife-protection movements has been carried out by the central government. 2 The giant panda and the crested ibis(朱鹮) are among these successful stories.The giant panda used to have a population of 1,114 in the 1970s. It now totals 1,864 thanks to 52 protection areas. 3 By the end of last year, seven of the nine released pandas had survived in the wild. 4 In 1981,only seven crested ibises were found in Yang County,Shaanxi Province.Since then,breeding programs have helped the population reach 2,000. China has even sent crested ibises to Japan and South Korea in recent years to help with the species' survival.5 Key projects will be continually carried out to improveprotection,including making the lists of wild animals and plants under State protection,and also fighting against illegal wildlife trade, which includes the ivory(象牙)trade.A.Another species was once thought to be extinct.B.Protecting wildlife is, without doubt, an important part.C.China will continue its efforts in the wildlife protection.D.People call for immediate protection of the remaining species.E.Scientists have worked to feed pandas and then release them into the wild.F.As environmental damage has increased, signs of change have appeared around the world.G.Several species in danger of extinction have made impressive progress thanks to the methods.1. 2. 3. 4. 5.答案全解全析Part 1 Warming Up, Pre-reading, Reading &Comprehending基础过关练Ⅰ.1.decrease 2.hunt 3.certain 4.contain 5.affected6.employed7.appreciateⅡ.1.are being protected from 2.in peace 3.pay close attention to 4.burst into laughter 5.dying out 6.in relief 7.in danger ofⅢ.1.protection考查名词。

Unit 4 Wildlife protection词语：1. wild作形容词，表示“野生的，野的，荒凉的，不守规矩的”。

be wild to do sth迫切地想做某事be wild with+抽象名词，表示“……得发狂，因……而发狂的状态”。

be wild out 极其热心或热爱run wild自由生长，不受控制作名词，表示“荒芜人烟的地方，偏僻的地区，荒野”。

2. protect作动词，表示“保护，警戒”，常与from连用。

protect与against连用，表示“防御……攻击”。

名词protection后面常与against，of连用。

3. loss表示“损失”是可数名词，常用复数。

表示“遗失，丢失，丧失”。

也可以表示战斗，比赛中“打输，失败”，是不可数名词。

at a loss表示“不知所措，不知（如何是好），亏本地”。

4. hunt表示“打猎，猎取”hunt for搜索，试图找到 hunt sb/sth down对某人/某物穷追到底hunt sth up查寻作名词，前面加冠词。

5. peace表示“和平，合约，和平时期”。

be at peace with…让……平静，与……和睦相处be in peace 安详的 make peace 和解 keep/break the peace 维持/破坏治安6. apply表示“申请，请求”。

apply for…（to…）向……申请表示“应用，使用”，其宾语后面接不定式，也可以用to+动名词。

apply to适用于，to是介词。

apply oneself to致力于，努力进行。

7. suggest表示“建议，提议”后接名词，动名词，不接不定式，也可以接从句，从句中的谓语动词由should+动词原形构成，should可以省略。

表示“使人想起，表明”后接名词或者是从句。

也可以表示“暗示，启发”，后接从句。

8. contain表示“包含，含有，容纳”，不用于进行时。

一、语基必备知识(一)重点词汇——分类记忆Ⅰ.阅读词汇——知其意1．wildlife n．野生动植物2．habitat n. 栖息地；（动植物的）自然环境3．threaten v t.& v i. 恐吓；威胁4．endanger v t. 危害；使受到危险5．reserve n. 保护区6．zone n. 地域；地带；地区7．species n. 种类；物种8．carpet n. 地毯9．fur n. 毛皮；毛；软毛10．rub v t. 擦；摩擦11．mosquito n. 蚊子12．insect n. 昆虫13．income n. 收入14．county n. 县；郡15．incident n. 事件；事变16．fierce adj. 凶猛的；猛烈的17．extinction n. 灭绝；消亡Ⅱ.核心词汇——写其形1．certain adj.确定的；某一；一定2．importance n. 重要(性)3．contain v t. 包含；容纳；容忍4．attention n. 注意；关注；注意力5．bite v t.& v i. 咬；叮；刺痛6．loss n. 损失；遗失；丧失7．ending n. 结局；结尾8.decrease v i.& v t. 减少；(使)变小或变少9．laughter n. 笑；笑声10．affect v t. 影响；感动；侵袭Ⅲ.拓展词汇——通其变1．protect v t.保护→protection n．保护2．respond v i.回答；响应；做出反应→response n．回答；反应3．distant adj.远的；远处的→distance n．距离；远方4．power v．给……提供动力→powerful adj.强大的；有力的5．secure adj.安全的；可靠的→security n．安全；可靠6．inspect v t.检查；视察→inspection n．检查→inspector n．检查员7．appreciate v t.鉴赏；感激；意识到→appreciation n．欣赏；感谢；鉴别8．harm n．& v t.损害；危害→harmful adj.有害的→harmless adj.无害的9．mercy n．仁慈；宽恕；怜悯→merciful adj.宽恕的；仁慈的→merciless adj.残忍的；无情的10．faith n．信念；信仰→faithful adj.忠诚的；忠实的→faithfully ad v.忠诚地；忠实地11．succeed v i.成功v t.接替；继任→success n．成功→successful adj.成功的→successfully ad v.成功地12．employ v t.雇用；利用(时间、精力等)→employment n．雇用；利用→employer n．雇主；老板→employee n．雇员13．dust n．灰尘；尘土；尘埃→dusty adj.布满灰尘的14．relief n．(痛苦或忧虑的)减轻或解除；减轻痛苦的事物→relieve v t.使减轻；缓解1.后缀-ful构成的形容词小结①powerful强大的；有力的②harmful 有害的③doubtful 怀疑的；疑惑的④faithful 忠诚的⑤forgetful 健忘的⑥hopeful 充满希望的2.“派生名词(v.＋-ing)”集锦①ending结局；结尾②training 训练；培养③feeling 感觉；感情④painting 绘画；油画⑤meeting 会议⑥beginning 开始；开端3.巧记各种“事件”①incident n．事件；事变②accident n. 事故③traffic accident 交通事故④event n. 重大事件；比赛项目高中英语讲义⑤sports event 体育赛事(二)重点短语——记牢用活1．die__out灭亡；逐渐消失2．in__peace 和平地；和睦地；安详地3．in__danger__(of) 在危险中；垂危4．in__relief 如释重负；松了口气5．burst__into__laughter 突然笑起来；大声笑了出来6．protect...from 保护……不受……(危害)7．pay__attention__to 注意8．come__into__being 形成；产生9．according__to 按照；根据……所说10．so__that 以至于；结果11．without__mercy 毫不怜悯地12．do__harm__to 对……有害1.“come into＋n.”短语一览①come into being形成；产生②come into effect/force 开始生效；开始实行③come into existence 形成；产生；开始存在④come into power 开始执政⑤come into use 开始使用2.“出现与消失”家族①die out灭亡；逐渐消失②disappear v i. 消失；失踪③appear v i. 出现④show up 出现⑤turn up 出现；发生(三)重点句式——背熟巧用Ⅰ.语境填词——根据提示写出该词的适当形式1．(2019·全国卷Ⅲ)If I succeed(成功) in managing one, I will open more.2．(2019·天津卷)To many people，technology means computers, hand­held devices, or vehicles that travel to distant(远处的) planets.3．(2017·全国卷Ⅱ)I’m certain(确定的) that you will like it once you visit the paper-cutting exhibition.4．(2018·北京卷)With all the programs, teamwork is key as trainees learn the importance(important) of leadership and being part of a bigger task.5．(全国卷Ⅱ书面表达)Our school photography club is going to hold an International High School Student Photography Show, the theme of which is environmental protection(protect)．6．Due to the strict traffic regulations on drunken driving, the number of accidents from it has greatly decreased(decrease)．7．Mary is a very stubborn girl and she is seldom affected(affect) by other’s opinion.8．He was determined to try his best to make up for the loss(lose)．Ⅱ.语境品词——写出加黑词汇在语境中的意义1．(2019·北京卷阅读B)Moore then used her savings to get her business off the ground.Afterwards, she and her father secured their first business meeting with a supermarket owner, who finally agreed to sell Moore’s product—CanCandy.弄到，获得2．(2019·天津卷阅读C)If a predator can eat several species, it can survive the extinction of one of them.灭绝3．(2018·全国卷Ⅰ阅读A)Your guide will provide a history lesson about the trees and the famous monuments where they blossom. Reserve your spot before availability—and the cherry blossoms—disappear！预定4．(2017·全国卷Ⅰ七选五)If anyone had told me three years ago that I would be spending most of my weekends camping, I would have laughed heartily.Campers, in my eyes, were people who enjoyed insect bites, ill­cooked meals, and uncomfortable sleeping bags.咬；叮；刺痛5．(2017·江苏卷单项填空)The disappearance of dinosaurs is not necessarily caused by astronomical incidents. But alternative explanations are hard to find.事件Ⅲ.派生词练习——用所给词的适当形式填空1．In the letter, he thanked me for my appreciating his work and my appreciation made him confident again.(appreciate)2．None of the students responded to her question; in other words, her question failed to get a response from any of the students.(respond)3．The man is always distant towards his neighbors, so his neighbors often keep him at a distance．(distant)4．Eating too much every day is harmful to our health; that is to say, eating too much every day does harm to our health.(harm)5．He succeeded his father as manager of the company.Soon their business became very successful．Lots of people wanted to know the secret of his success．(succeed) 6．The employer decided to employ Tom as her secretary and she hoped to have a talk with her employee before he came to work.(employ)Ⅳ.选词成篇1.came__into__being.2.According__to the research, with our environment becoming worse and worse, many animals can’t adapt themselves to the new changes so that many species are in danger of3.dying__out. It is high time that we should4.pay__attention__to__the topic of wildlife protection. Firstly, we should start a campaign to raise the public awareness of protecting the wildlife. Secondly, we should take measures to5.protect animals from being hurt. Last but not least, it is very important to keep the balance of nature. Only when we protect the wildlife and maintain the natural beauty can we live6.in__peace．Ⅴ.完成句子1．(2018·全国卷Ⅰ书面表达)如果你按照我告诉你的去做，我相信你会玩得很愉快。

《Unit4Wildlifeprotection》教案高中必修2英语高中阶段英语的学习与其它科目的学习，既有共通之处又有其特殊性，关键是要有好的学习方法。

下面是小偏整理的《Unit4Wildlifeprotection》教案高中必修2英语，感谢您的每一次阅读。

《Unit4Wildlifeprotection》教案高中必修2英语教学准备教学目标TeachingObjectives:Attheendofthislesson,studentsshouldmasterthekeywordsandexpressionsthroughthecompetition;practicetheirreadingskillssuchasskimmingandscanning;enhancetheircooperationabilitiesthroughgroupwork;realizetheimportanceandemergencyofprotectingwildlife;教学重难点TeachingImportantPoints:Studentscandothecompetitionactivelyandmasterthewordsa ndexpressions;Studentscanfinishthosereadingexercisesbythemselvesbyusin greadingskills;Studentscandothegrouptasksuccessfully.TeachingDifficultPoints:Studentscanunderstandthecontentofthepassageanddothegr oupdiscussionsuccessfully.教学过程TeachingProcedures:Part1.Pre-reading(11’)1.Avideoof“THELIONKING”andsomepicturesofthemiserableanimals;2.Wordsandexpressionscompetition.Part2.While-reading(20’)1.Skimthewholepassageandfinishthechartbelow.2.ReadtheParagraph1andfindouttheanswerstothefollowingq uestions.1).Howdidtheantelopefeel?2).WhyarepeoplehuntingandkillingtheTibetanantelopes?3.Readparagraph2andchoosethebestansweraccordingtothet ext.1).WhyisthenumberofelephantsincreasinginZimbabwe?A.BecausemoreelephantshavecometoZimbabwe.B.Becausefarmersarehappyandnolongerkillthem;C,Becausethoseelephantsdon’tdestroyfarmsanymore.2).HowdoesthegovernmentofZimbabwehelpprotectwildani mals?A.Itallowedtouriststohuntasmallnumberofanimalsiftheypaidt hefarmers;B.Itforcedfarmerstoprotecttheanimals.C.ItputmorewildanimalsintoZimbabwe.4.Readparagraph3andfillintheblanks.WhenthecarpetandDaisycameto____________,theysawa_______ rubbingitselfwithamillipede_______,whichcan______mosquitoesbe causeit______apowerfuldrug.ThemoneytoldDaisytopaymore_____ ___totherainforestand_____howtheanimalslivetogether.Noforest,n oanimals,no_____.5.TrueorFalsestatements.1.DaisysawmanyantelopesinTibet.2.Daisy’ssweaterwasmadeofsheepwool.3.TheelephantusedtobewellprotectedinZimbabwe.4.InZimbabwe,touristslovetoseetheelephants.5.ThefarmersinZimbabwegetnothingfromtheelephantsnow.6.ThisisarealstoryinDaisy’slife.Part3.Post-reading(8’)1.Ask“Daisy”totalkaboutherfeeling;2.Discussion:Whatshouldwedotoprotectwildlife?3.SeeashortvideoofJackieChan.Part4.SummaryandWriting(1’)Writeashortpassagebasedonthediscussion.课后习题PleasewritealettertoWWFandprovidesomesuggestionsonho wtoprotectwildlife.人教版高中英语必修2《Unit4Wildlifeprotection》教案【二】教学准备教学目标Improvestudents’abilityofextensivereading.Improvestudents’askillsoflistening.教学重难点1.Teachingimportantpoints:A.Improvestudents’abilityofextensivereading.B.Improvestudents’askillsoflistening.2.Teachingdifficultpoints:A.Howtofinishthetaskinlimitedtime.B.Howtogettheaccurateinformationwhilelistening.教学工具课件教学过程Step1.GreetingStep2.DailyreportStep3.RevisionChecktheanswerstotheexercisesdoneyesterday.Step4.Extensivereading1.Askstudentstwoquestionsbeforelisteningtothetape,andthe nlistentotherecordingofthetext:A.Whendiddinosaursliveontheearth?B.Whydidtheydieout?2.Explainthefollowinglanguagepoints:①longbefore很久以前beforelong不久之后Dinosaursdoliveontheearthlongbefore.Beforelongdinosaursdieoutfromtheearth.②ontheearth-intheworldonearth究竟Whatonearthdoyouwant?Step5.Listening1.Explainthefollowingdifficultwordstothestudentsbeforeliste ning:①onceuponatime曾经;很久以前②curiousadj.好奇的③wingn.翅膀④trapn.陷阱⑤spearn.矛2.ListentotherecordingofDodo’sStory.3.FinishEx1onp30.4.Checktheanswers(CDBC)5.Listentothetapeagainandfinishex2onP30Step6Homework1.FinishEx.21-55onEnglishWeekly15th2.Reviewthelanguagepointsinthisunit.课后小结学了这节课，你有什么收获?课后习题完成课后习题。

Unit 4 Wildlife Protection I. 单元教学目标II. 目标语言II. 教材分析与教材重组1. 教材分析本单元以保护动物为话题，旨在通过本单元的学习使学生了解很多动物已经灭绝或濒临灭绝，从而认识到保护动物的重要性和必要性；通过探讨保护动物的措施和建议，引导学生发表自己的见解和看法；通过进一步讨论提出有效的保护措施，唤起学生保护动植物、维护生态平衡、保护我们家园的责任感。

并能写信表达自己保护动物的方法与建议，力求正确表达自己的意图并解释原因，并能正确使用被动语态的现在进行时。

1.1 Warming Up首先帮助学生明确保护野生动物的原因以及方向。

旨在通过图片和表格引导学生讨论当今我国珍稀动物的现状。

以panda、Milu Deer、South China Tiger 为例，通过对这些珍惜动物所面临的问题、在中国的栖息地以及采取措施其后对比所做的报告，学生能够用已有的知识和经验讨论在中国处于保护状态下的濒临灭绝动物。

从而有效地引导学生关注本单元话题，关注动物生存现状。

1.2 Pre-reading是Reading的热身活动。

通过回答两个问题引导学生讨论自己所知道的濒临灭绝的动物并思考灭亡的原因。

同时要求学生通过阅读文中的图片和标题来猜测文章的内容。

1.3 Reading是一篇童话故事，讲述Daisy 乘坐飞毯跨越时空，在不同个国度、不同地区与生存状态不尽相同的和藏羚羊、大象、猴子对话的神奇经历，展示了Daisy逐渐认识保护动物重要性以及学习如何保护动物的经历。

动物们讲述了各自的处境，唤起了Daisy对动物的热爱以及保护动物的责任心。

从而号召人们热爱动物，保护动物，从我做起。

1.4 Comprehending考察学生对阅读内容的进一步理解与对所学知识的综合运用、迁移。

练习1要求学生根据阅读文的内容回答问题。

这四个问题设计到濒临物种生存现状，保护这些物种所取得成效的措施、保护动物栖息地的重要性以及决定保护成果能够的必要措施。

高一英语第二模块第四单元Using Language教学案——课前预习案——Fast reading and answer questions.1. When did dinosaurs live?________________________________________________________________________ 2. When did dinosaurs die out?_________________________________________________________________________ 3. How did dinosaurs die out?________________________________________________________________——课中探究案（一）——一、检查反馈，导入新课。

用单词的正确形式填空并背诵下列内容。

Daisy desired to help 1 (endanger) species of wildlife because a largenumber of animals are dying 2 . One day, a flying carpet took her to a3 (遥远) land,4 she could find antelopes5 gave fur to makesweaters. Then she met an elephant in Zimbabwe and was told that elephants used to be hunted without 6 . But now people know the 7 (重要) of wildlife8 (protect).二.目标定位确定重点1. Learning Task(学习任务)：the whole text on p30.2. Learning Aims(学习目标)：课文理解；14个短语；long before用法三.自主探究教师点拨Read the text carefully and find the following phrases:1. 在…之前很久________________2. 形成_______________________3. 大量的，很多_________________4.过去曾______________________5. 不久前_______________________6. 惊讶的发现__________________7. 不但….而且___________________8.灭绝_________________________9. 太…而不能_________________10. 不再________________________11. 确定无疑____________________12.从…消失 ____________________13. 根据________________________14.听故事_______________________四、尝试演练，合作解疑。