精品高中英语人教大纲第三册Unit4 Green world第一课时Word下载.docx

精品高中英语人教大纲第三册Unit4 Green world第一课时Word下载.docx

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Ⅰ.BriefStatementsBasedontheUnit

Thereareavarietyofplants.Howshouldweclassifythemscientifically?

Whoisthefirsttodothis?

WecanfindtheanswersinUnit4.Theunitbeginswithtalkingaboutfourdifferentkindsofflowers—tulip,rose,sunflowerandpeony.Thestudentsareaskedtogivethenamesandtelltheplacestheycomefromaswellaswhattheyareusedfor,etc.InSpeakingPart,thestudentsaregivendifferenttopicstotalkabout.Firsttheyareaskedtodescribehowtoplantsoybeans.Fivepicturesaregiventoshowthewholeprocessofgrowingsoybeans.Eventhoughyouhaven’tdonethisbyyourself,you’llhavesomeideas.Aslongasyou’veheardofsuchthingsasthis,youcandescribeitwithoutmuchdifficulty.Thentheyareaskedtotalkabouthowtoplantvegetablesonconditionthatyouhaveasmallgarden.Ifyoucan’tdothissuccessfully,youcanchooseamucheasiertopic—describetheprocessofplantingandgrowthofanyplantwhichyouarefamiliarwith.Inahappyandrelaxedatmosphere,thestudents’abilitytospeakEnglishisimproved.Listeningasksthestudentstolistentoamaterialaboutfruitandhowtogroupdifferentkindsoffruit.Besides,thematerialgivesthereasonwhyweeatfruit.ThestoryaboutCaptainCookandhissoldiersisalsointerestingandinstructive.Theteachershouldaskthestudentstolistencarefullysoastoimprovetheirlisteningability.Theauthorofthetextdescribesthreeworldfamousscientists—CarlLinnaeus,DanielSolanderandJosephBanks.Theygavebirthtoascience—botany,orrather,CarlLinnaeusgavebirthtoitandtheothertwoenricheditgreatly.Aftertheygothroughthewholearticle,thestudentswillhaveimprovedtheirreadingability.Atthesametime,they’llbestruckbythescientists’spiritofdevotionaswellaslearnmoreaboutthescience—botany.Inordertohelpthestudentstolearnandmastertheusefulwordsandexpressions,exercisesofdifferentformsaredesignedinWordStudy.Thestudentscanusethesewordsandexpressionsindifferentsituations.InGrammar,thestudentswillreviewtheObject.Alotofexamplesaregiventoletthestudentsseetheirusages—whatcanbeusedastheobject,ausefulsentencepattern:

havesomethingdone,anddirectandindirectobject.Thestudentswillknowthegrammaritemfurtheraftertheyhavedonealltheexercises.InReading,IntergratingSkills,anotherthreescientistsCharlesDarwin,GregorMendelandGoteTuressonandtheirgreatscientificachievementsareshowntothestudents.Afterlearningthepassage,thestudentswilllearnthesameastheydidfromthetextbefore.Writingisdesignedperfectly.Ingeneral,writingishardtomoststudents,expeciallyEnglishwriting.

However,whendoingthepart,thestudentswillperhapsfeeldifferent,asdetailedinformationisgiventothem.Howtoapplythedifferentinformationwhentheyarewritingisanabilityweshouldpayattentionto.Ifthiscanbedonesuccessfully,thestudents’writingabilitywillbefurtherimproved.

Ⅱ.TeachingGoals

1.Talkaboutbotany.

2.Speakaboutprocedures.

3.ReviewtheObject.

4.Writeadescriptionofplants.

Ⅲ.BackgroundInformation

TheScientificAttitude

Whatisthenatureofthescientificattitude,theattitudeofthemanorwomanwhostudiesandappliedphysics,biology,chemistry,geology,engineering,medicineoranyotherscience?

Weallknowthatscienceplaysanimportantroleinthesocietiesinwhichwelive.Manypeoplebelieve,however,thatourprogressdependsontwodifferentaspectsofscience.Thefirstoftheseistheapplicationofthemachines,productsandsystemsofappliedknowledgethatscientistsandtechnologistsdevelop.Usuallyaidedbytechnology,scienceimprovesthestructureofsocietyandhelpsmantogainincreasingcontroloverhisenvironment.Newfibersanddrugs,fasterandsafermeansoftransportation,newsystemsofappliedknowledgearesomeexamplesofthisaspectofscience.

Thesecondaspectistheapplicationbyallmembersofsociety,fromthegovernmentofficialtotheordinarycitizen,ofthespecialmethodsofthoughtandactionthatscientistsuseintheirwork.

Whatarethesespecialmethodsofthinkingandacting?

Firstofall,itseemsthatasuccessfulscientistisfullofcuriosity—hewantstofindouthowandwhytheuniverseworks.Heusuallydirectshisattentiontowardsproblemswhichhenoticeshavenosatisfactoryexplanation,andhiscuriositymakeshimlookforunderlyingrelationshipsevenifthedataavailableseemtobeunconnected.Moreover,hethinkshecanimprovetheexistingconditions,whetherofpureorappliedknowledge,andenjoystryingtosolvetheproblemswhichthisinvolves.

Heisagoodobserver,accurate,patientandobjectiveandappliespersistentandlogicalthoughttotheobservationshemakes.Heutilizesthefactsheobservestothefullestextent.Forexample,trained