Unit 1 Great Scientists教案

unit1  greatscientists
period1 warmingup&pre-reading
teachingaim:
tolearnsomethingaboutsomefamousscientists
teachingprocedures:
step1lead-in
1.canyounamesomefamousscientists?
2.inyouropinion,whatqualitiesshouldascientisthave?
(commoncharacteristics:bright/brightness;creative;cautious;persuasive;strict;positive;co-operative;enthusiastic;etc.)
3.whatkindofscientistsdoyouknow?
(geologist;geographer;mathematician;physicist;chemist;agriculturist;astronomer;botanist;biologist;inventor…)
step2warmingup
1.page1,sb.asksstofinishthequizandfindoutwhoknowsmost.
2.showsomepicturesofthesegreatscientistsandhaveabriefintroductiontothem.
step3pre-reading(discussion)
1.whatdoyouknowaboutinfectiousdiseases?whatkindofinfectiousdiseasesdoyouknow?
(infectiousdiseasescanbespreadeasily,theyhaveunknowncauseandmaydogreatharmtopeople.sars;birdflu;aids;etc.)
2.whatdoyouknowaboutcholera?(tcanintroducethisdiseasebyusingslides)
3.doyouknowhowtoproveanewideainscientificresearch?discussinsmallgroupsthestagesinexamininganewscientificidea.whatorderwouldyouputthemin?
(findaproblem→makeupaquestion→thinkofamethod→collectresults→analysetheresults→repeatifnecessary→drawaconclusion)
step4languagepoints
1.discover  vt.tobethefirsttofind,learnof,orobserve发现，发觉
discover通常指被探索或被揭示物早就客观存在着；invent指的是发明原先不存在的东西。如：
columbusdiscoveredamericain1492.
alexandergrahambillinventedthetelephonein1876.
2.as  conj.
usedincomparisons 用于比较：像……一样
he’sasoldasiam.
inthesamemannerorwaythat照……的方式
doasisay.
while;when
hesawherasshewasgettingoffthebus.
because
asshehasnocar,shecan’tgetthereeasily.
though
tiredasiwas,itriedtohelpthem.
asitis:inreality;infact事实上
ihopethingswouldgetbetter,butasitistheyaregettingworse.
(7)asitwere:sotospeak;inacertainway可以说;跟……一样
heismybestfriend,mybrother,asitwere.
3.characteristic
(1)n.aspecialandeasilyrecognizedqualityofsomeoneorsomething特色,特性
acharacteristicofthisanimalisitsabilitytoliveforalongtimewithoutwater.
(2)adj.typical;representingaperson’sorthing’susualcharacter独特的
iheardmyfriend’scharacteristicvoice.
4.thewayofdoingsth.意为“做……的方法”，还可以表达为thewaytodo。如：共11页，当前第1页1234567891011