unit2book8warmingup_第1頁
unit2book8warmingup_第2頁
unit2book8warmingup_第3頁
unit2book8warmingup_第4頁
unit2book8warmingup_第5頁
已閱讀5頁，還剩23頁未讀， 繼續(xù)免費閱讀

下載本文檔

版權(quán)說明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請進行舉報或認(rèn)領(lǐng)

文檔簡介

Unit2Cloningwarmingupandspeaking DoyouenjoywatchingTVseries HaveyoueverseenJourneyToTheWest Whatisclone Clone Clone alsocalledreproduceasexually 無性生殖 繁殖 isthecreationofcellsorwholeanimalsusingDNAfromasingle parent withoutusingthenormalreproductive 有性生殖 process TheclonehasthesameDNAtotheparent What sclone clone Naturalclone Man madeclone Naturalcloneisonethatoccursfromthe parent inanaturalformofcloningwithouthumanhelp Man madecloneisonethatproducedthroughhumanintervention 介入 cactus strawberry twins pendulumorchid 吊蘭 naturalcloningexamples Man madecloningexamples theimportanteventsincloninghistory In5000B C 谷物選種 HumanBeingsbegantochoosethebestseedsfromsomekindsofcrops Thatwasthebeginningofcontrollinglifeaccordingtohuman swill In1952 Cloningtadpole 克隆蝌蚪 TheAmericanscientistscreatedacopyoftadpolebymeansofusingatadpolecell Thistinytadpolehasbecomethefirstkindofcloninganimal In1978 Thefirstcaseoftubeinfant 試管嬰兒 appeared ABritishdoctorusedthesperm 精液 ofamanandfertilized 受精 itinatesttube 試管 Thentransplanted 移植 theembryo 胚胎 intothewomb 子宮 ofahealthymother ThefirsttubeinfantcalledLouisappeared In1996 thefamoussheep Dolley wasclonedsuccessfully DolleyandtheFatherofDolley Lanwilmut 伊恩 威爾姆 In1998Aseriesofthingswerecloned ThescientistsinHawaiiUniversityclonedover50mice Someprivateinstitutions 協(xié)會 successfullyclonedlittleoxen In2002 thescientistsofA MUniversityinUSAhasbredthefirstclonedcatintheworld Nowadays Cloneddog mouse rabbit goat ox pigappeared Chinabecometheseventhcountrythathastheabilitytoclonepigs Chinahassucceededinusingembryonic 胚胎的 celltoclonemanyanimals TheEnd Thankyou Quiz NaturalcloneMan madeclone strawberry Isitnaturalcloneorman madeclone identicaldogs NaturalcloneMan made cactus twins TorFquestions1Clonecanbefrombothnaturalcloneandman madeclone 2Thesheep namedKittywasthefirstsuccessfulcloneofamammal 哺乳動物 T F 3Onlystrawberriesandcactus 仙人掌 arenaturalclones F 4SinceDolley researcherhaveclonedanumberoflargeandsmallanimalsincludinggoats cows mice pigs cats rabbitsanddogs 5Aparentcancloneachildwhoisdyingofaterminalillness 不治之癥 T F Enjoyoneplay Background Amanhaslosthislefthand onedayhisfriendtellshimthenewsthatadoctorcantransplantonenewhandforhim Theplayhappenslikethis Guessing Whatwillthedoctorsayattheendoftheplay Iscloninggoodorbadforus AdvantagesDisadvantagesGroup1and2Group3and4 Mini Debate Areyouinterestedinthetopicofcloning Doyoubelievethatwewillhaveclonedhumansoon Doyouthinkaclonedhumanshouldhavehumanrights Doyousupportmedicalcloning Speaking InterviewaboutcloningSituation AreporterfromChinaDailyisinterviewingthreefamousscientistsabouttheiropinionsofcloning Doyouthinkitiswise What syo

溫馨提示

  • 1. 本站所有資源如無特殊說明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽，若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫網(wǎng)僅提供信息存儲空間，僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理，對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

評論

0/150

提交評論