UNIT 5 Look into Science Lesson 30 Science Affects Us 课件2.ppt

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1、LookintoScienceUnit5Lesson30ScienceAffectsUsIntroductionContent123ContentsHomeworkIntroductionHaveyoueverdoneanyinterestingexperiments?Canyoudescribeoneofthem?Whatwouldlifebelikewithoutcomputersormobilephones?QuestionTalkwithyourpartnerthathowmanyaspectsthatthescienc

2、eaffectsus?ContentHerearetwolettersfrommeandmyfriend.HiWangMei,Howareyou?Everyonehereisfine.Doyouwanttosurpriseyoufriends?MyfriendsandIdidanexperimentlastweek.Isuggestyoutryit,too.First,getajarfullofwaterandapieceofcardboard.Coverthejarwiththecardboardandturnthejarov

3、er.Next,takeyourhandoff.Canyougetwhathappens?Thecardboardholdsthewaterinthejar!Theairpressurepushingupontheboardishigherthanthatofthewaterpushingdownfrominsidethejar.Thehigherairpressureoutsidethejarholdsthecardboardinplace.Scienceisinteresting.Don’tyouthinkso?DearJe

4、nny,I’mverywell.Thanks!Theexperimentyoudidsoundsinteresting.Yes,scienceisinteresting,anditaffectsoureverydaylives.Ourliveswouldsurelybeverydifferentwithoutscientificdevelopments.Ialwayswonderwhatlifewouldbewithoutcomputersormobilephones.Scientificdiscoveriesaremaking

5、ourlivesbetterandbetter.Thisweekwehadsomesciencelessonstoo.IenjoyedlearningaboutDNA.It’sreallyoneofthemostamazingthingsontheearth!ScientistsaredoingsomanynewthingswithDNA.Ithinkitwillchangetheworld.Itwillbeinterestingtoseewhathappens.what’syouropiniontowardthedevelop

6、mentofthescience?Doyouthinkitwillbegoodorbad?I.Memoryallthenewwordsandexpressions.II.Finishtheexercisesonthetextbook.WorkinclassI.Collectsomeinformationaboutscientificproductsontheinternet.II.Talkwithyourfriendsaboutwhatwehavelearnedtoday.HomeworkThankYou!