2023學(xué)年完整公開課版選八2Cloning(reading)

人教課標(biāo)高二選修八Unit2

Unit2CloningWarmingup&ReadingPre-readingWhatisaclone?Acloneisananimalorplantproducednaturallyorartificiallyfromthecellsofanotheranimalorplantandisexactlythesameasit.

Theimportanteventsincloninghistory

In1952，tadpole(蝌蚪）wascloned.Itisthefirstanimaltobecloned.

In1963,anAsiancarp(鯉魚)wascloned.Tenyearslater,aChinesescientistnamedTongdizhouclonedaEuropeancarp.1978年7月25日,世界上第一個(gè)試管嬰兒路易絲·布朗在英國(guó)出生。

路易絲·布朗現(xiàn)已41歲

In1996,asheepcalledDollywasborn.Itisthefirstmammaltobecloned.Itisconsideredtobethegreatestsuccessinthedevelopmentofcloning.克隆羊多莉誕生.rmvb

Amacaque(獼猴)wasclonedin2000.Laterscientistsclonedmanymonkeys.

2001年,克隆人被提上日程

2002年1月,中國(guó)科學(xué)院動(dòng)物研究所成功獲得體細(xì)胞克隆牛。

Amulewasclonedin2003.Itisthefirstanimalwhichlackfecundity(生育能力)tobecloned.Cloning:WhereIsItLeadingUs?

Thetextismainlyaboutthe1._________ofanimalcloningandthelifeofDollythesheep,aswellasthereasonswhycloningisstill2.____________.controversialprocedureReadthetextquicklyandcompleteitsmainidea.SkimmingPara1.Para2.

Para3.Para4.Para5.

A:Cloninghastwomajoruses.B:Cloningisawayofmakinganexactcopyofanotheranimalandplant.C:TheeffectofDolly.D:Itisforbiddentoclonehumanbeings.E:ThebirthanddeathofDolly.ScanningmatchthemainideawitheachparagraphTask1:Readthetextcarefullyandfillintheblanks.(Para.1--Para.3)DefinitionCloningisawayofmaking____________ofanotheranimalandplant.Majorusesofcloning●Gardenersuseitto________commercialquantitiesofplants.●Itisvaluableforresearchonnewplantspeciesandfor_______researchonanimals.anexactcopyproducemedicalDetailedreadingAboutDollythesheep◆Encouragingnews:Dollyseemedtodevelop________.◆Disturbingnews:Dollylivedonlysixandahalfyears,halfthelengthofthelifeofthe_______sheep,becauseofseriousillnesseswhichweremoreappropriatetoa__________________.normallyoriginalmucholderanimalTask2:Answerthefollowingquestions.(Para.4--Para.5)1.WhatistheeffectofDolly'sappearance?2.whataretheargumentsovercloning?Task2:Answerthefollowingquestions.(Para.4--Para.5)1.WhatistheeffectofDolly'sappearance?

Dolly'sappearanceraisedastormofobjectionsandhadagreatimpactonthemediaandpublicimagination.Task2:Answerthefollowingquestions.(Para.4--Para.5)2.whataretheargumentsovercloning?

A:Newspaperswroteofevilleadershopingtoclonethemselvestoattaintheirambitions;

B:Religiousleadersraisedmoralquestions;

C:Governmentsbecamenervousandmoreconservative.(1)Cloningmeansmakingacopyofananimaloraplant.(2)Gardenerscanmakealotofmoneybycloningplants.(3)Cloninganimalsisascomplicatedascloningplants.FTF

Task3:True(T)orFalse(F)TT(4)Dollythesheepwasthefirstsuccessfulcloneofamammal.(5)Naturalcloneshappeninanimalsaswellasinplants.Lookatthesepictures,anddiscuss:Iscloninggoodorbadforus?

Discussion

A:Ithinkcloningisgoodforus.Because…B:Ithinkcloningisbadforus.Because…1.“不讓我們克隆人,就是不讓我們修正我們的錯(cuò)誤,人類歷史難道能夠這樣構(gòu)造嗎？”—《紐約時(shí)報(bào)書評(píng)》2.“當(dāng)然應(yīng)該‘克隆’人,如果誰第一個(gè)掌握了這個(gè)技術(shù),他就是我真正的、也是唯一的競(jìng)爭(zhēng)對(duì)手?！薄葼枴どw茨支持克隆人3.“克隆人絕對(duì)是科學(xué)上了不起的進(jìn)步,克隆技術(shù)必將創(chuàng)造21世紀(jì)的輝煌。”

—麻省理工學(xué)院生命工程教授約翰·布洛克4.“人體商業(yè)化是人類經(jīng)濟(jì)活動(dòng)中無與倫比的成就,毫無疑問,克隆技術(shù)的出現(xiàn)將為世人創(chuàng)造一個(gè)最為廣泛和深遠(yuǎn)的市場(chǎng)?！薄?guó)《經(jīng)濟(jì)學(xué)家》雜志。1.克隆技術(shù)現(xiàn)在還不成熟,克隆人可能有很多先天性生理缺陷。2.克隆人的身份難以認(rèn)定,他們與被克隆者之間的關(guān)系無法納入現(xiàn)有的倫理體系。反對(duì)克隆人3.克隆技術(shù)有可能被濫用,成為恐怖分子的工具。4.從生物多樣性上來說,大量