Unit 3 Science and nature

《Unit 3 Science and nature》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Period2Reading(2)Learningaims:1)Tohelpthestudentsbetterunderstandthewordsandsentencesusedinthearticle.Teachingprocedures:1)Scientistshaveannouncedthattheyhaveclonedthefirsthumanembryo.【同位语从句】(L1)2)causemuchdebate引起争论(L2)3)*Ontheonehand,somescientistspointoutthatifyoucloneanembryo,you

2、canprovidevaluablehumantissues---suchasboneorlungtissue--thatcouldbeusedtosavehumanlives.【①5本句中含有三个从句，分别是宾语从句，条件状语从句和定语从句。②pointoutmeans"totellsomeonesomethingthathe/shedidnotknoworneverthoughtabout.区别pointoutandpointto.】(L2-4)1)*Ontheotherhand1,manypeople,includingsomescientists,dis

3、agreeandareafraidthat,ifmankindtoywithnature2inthisway,wemaybeonourwayto3producingareal-lifeFrankenstein'smonster.(L5-7)【①ontheonehand...ontheotherhand...一方面...另一方面。"theyareusedwhencomparingdifferentoroppositefactsorideas."②toywithnature把自然当做儿戏.③onthewaytodoingsth.在做某事的路上】2)Cloningis

4、{producing}【表语】anexactcopyofaplantorananimal(by){usingitscells}.【条件状语】(L8)3)Thefirstmammalto(beclonedsuccessfullyfromanadultcell)wasDollythesheep.【[whichhasbeensuccessfullycloned]，thesheep是同位语】(L9)4)inearly2003在2003年初(L10）5)thannormal与正常情况相比（L11）6)leadtomorediseases导致更多疾病（L12)7)*Howe

5、ver,ingeneral1thescientistswerepraisedfor2theirwonderfulscientificadvance3.(L12-13)【①总的来说"usually"or"inmostsituations".②praisesb.forsth.因...表扬某人。③scientificadvance科学进步】8)*Althoughheresearches1cloning,hisintention2hasneverbeento5creatcopiesofhumans.(L15-16)【①researchisaverbhere,meanin

6、g"tostudyasubjectindetail,especiallyinordertodiscovernewfactsortestnewideas."②intentionisanoun,meaning"aim"or"purpose"theintentiontodosth/ofdoingsth.做某事的打算】1)concentrateon集中精力于...(L17)2)Hethinksresearcheffortsshouldconcentrateoncreatingnewtissuesandorgans(thatcanbeusedtocurediseases)

7、likecancer.【定语从句】(L17)3)However,somepeoplebelievethatcloninghumanembryoswiththeintentionifdestroyingthemshowsnorespectforhumanlife1.【①that引导的宾语从句中主语是cloninghumanembryoswiththeintentionifdestroyingthem.②shownorespectforhumanlife对人类生命不尊重】（L18--20）4)causealotofanxiety引起焦虑（21）5)beanxious

8、todo迫切地要做某事（