英语人教版九年级全册Unit 13Section A 3a ~ 3b.ppt

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1、Unit13Wearetryingtosavetheearth.SectionA3a-3b授课教师：李中名Warmup:Thinkofsomeendangeredanimals.Answerthesequestions:Whatdoyouknowaboutsharks?Doyouthinksharksareendangered?Why?Whatcanweandourgovernmentdotohelpsavethesharks?WheresharkfinsoupispopularNumberofsharkscaughtan

2、dtradedeveryyearhowgovernmentscanhelpTwoenvironmentalgroupsagainst"finning"SouthernChinaAround70millionTodeveloplawstostopthesaleofsharkfinsWildAidandtheWWFLet’slearnsomelanguagepointsharmful形容词，意为“有害的”。常构成短语beharmfulto“对……有害的”。Stayingupoftenisharmfultoyourhealth.

3、经常熬夜对你的健康有害。【拓展】harm名词，意为“害处”。常用构成短语doharmto“对……有害”，相当于beharmfulto.Toomuchsmokingdoesharmtohishealth.=Toomuchsmokingisharmfultohishealth.吸烟过多对他的健康有害。atthetopof意为“在……的顶部或顶端”。Theanswerisatthetopofthepage.Thereisatoweratthetopofthehill.thefoodchain食物链thenumberof“……的数

4、量”，作主语时，谓语动词用单数形式Thenumberofthebooks400.anumberof“许多……”作主语时，谓语动词用复数形式Anumberofchildrenplayinginthepark.isareReadthepassageaboutsharksandcompletethefactsheetbelow.3aLet'sdothistoreviewthetext!!!Somepeopleliketoeatshark'sfinsoup,especiallyin_______China.Butgettingt

5、heshark'sfinisvery_____.Whenpeoplecatchsharks,they________theirfinsandthrowthesharksintotheocean.Thesharkslowlydiesbecauseitcan't_____withoutthefin.Anditisalso______totheenvironment.Sharksareatthe____ofthefoodchain.Ifthenumberofsharksdropstoolow,itwillbreakthebala

6、nceofnuture.Pleasesaynotoeatingthesharkfinsoup,andtakeactiontosavethesharks!southerncruelcutoffswimharmfultopHomeworkReviewthenewwordsandexpressions.Recitethepassagein3a.ThankYou!