英语牛津译林5unit2精品学案(第3课时)(阅读)

英语牛津译林5unit2精品学案（第3课时）（阅读）
课题名称 M5U2 课型 Reading 课时 2
1. 【学习目标】
Checkandenhancestudents ’readingabilities. 2.Trainstudentstogainanoverallunderstandingofthearticleandlearntoreadadebate.
【学习重点】 1.Howtomakethestudentsfullyunderstandthetext.
2.Howtogetstudentstoreadadebate.
【学习难点】 Howtomakethestudentsfullyunderstandthetext
【学法指导】
【知识链接】
【导学过程】〔学习方式，学习内容，学习程序，问题〕 导学留白
预习导学〔10分钟〕
Todaythingsaredifferent.Theworldhasbecometoocrowded.Weareusingupourna turalresources,andpollutingourenvironmentwithdangerouschemicals.Ifwec ontinuetodothis,humanlifeonearthwillnotsurvive.
Werealizethatiftoomanyfisharetakenfromthesea,therewillsoonbenoneleft.Yet,withmodernfishingmethods,moreandmorefisharecaught.Weknowthatiftoo manytreesarecutdown,forestswilldisappear.Yet,wecontinuetousepowerfulm achinestocutdownmoreandmoretrees.Weseethatifriversarepollutedwithwast eproducts,wewilldie.Yet,wasteproductsarestillputintorivers.Weknowthat ifthepopulationcontinuestoriseatthepresentrate,inafewyears,therewon ＇tbeenoughfood.Whatcanwedotosolvetheseproblems?
Ifweeatmorevegetablesandlessmeat,ndfor cropsfeedsfivetimesmorepeoplethanlandwhereanimalsarekept.Ournaturalre sourceswilllastlongerifwelearntorecyclethem.Theworldpopulationwillnot risesoquicklyifpeopleusemodernmethodsofbirthcontrol.
Finally,ifweeducatepeopletothinkabouttheproblemsweshallhaveabetterand 展示导思〔25分钟〕 WhatsidedoesMrLinShuiqingandMrQianLiweieachrepresent?
Byhowmanytimeshastheworld ’spopulationincreasedsince1800?
AccordingtoMrQianliwei,whatshouldbedonetofactoriesthatpollutetheenvironment? Careful-reading
1. AskSstoReadLinShuiqing ’sdebateandanswerthefollowingquestions.
(1)WhatsocietydoesLinShuiqingbelongto?
(2)WhatdoesLinShuiqingstarthisspeechbytalkingabout?
(3)Whatishappeningtolargeamountsoffish?WhatdoesLinShuiqingthinkweshouldteachpeo pleabout?
2. AskSstoreadQianLiwei ’sdebateandanswerthefollowingquestions.
(1)WhydoesQianLiweithinkproductionshouldnotbecutback?
(2)WhatdoesQianLiweisayweshouldproducemoreof?
〔3〕WhatdoesQianLiweisayweneedmoreof?
〔4〕WhatdoesQianLiweisaymanypeoplearewillingtodo?
检测导练〔10分钟〕
)
A.Recyclinghelptosolvetheproblembetweeneconomyandenvironment.
B.Naturalresourcesshouldbemadebetteruseof.
C.Whoeverpollutestheenvironmentshouldbepunishedseriously.
D.Pricesforcuttingdowntreesneedtoberaised.
2.IntheeyesofMr.Lin,contributestothedamageoftheenvironment.
A.toomuchfishing
B.industrialproduction
C.theincreasingpopulation
D.seriouspollution
3.Therewasapopulationofintheworldin1810.
A.aboutonebillion
B.sixtimesthesizeofwhatisnow
C.6.5billion
D.notknown
4.Howdoyouunderstand “environmentallyfriendly ”?
A.Makingfriendswithenvironment.
B.Friendlytoenvironment.
C.Beneficialtoenvironment.
D.Environmentisfriendly.
5.Mr.Qiandoesn ’tagreetoreducetheindustrialproductionbecause.
A.ithasnothingtowithpollution
B.itwillleadtomoreunemployment
C.itwillhavealastingeffectonhumanbeings
onstheremaybetoomuchwaterintheriver,andthewatermayfloodallthelandnearit.Atother timestheriverwatermaynotbeenoughforallthefarmers,andthenitwillbedifficulttoirri gatethefields.
Topreventthesedifficulties,adammaybebuiltacrosstheriver.Thiswillstorewaterf ordryseasons,andinwetseasonsitwillpreventthefloodingoftheland.Agreatlakewill,no doubt,beformedbehindthedam,andthismaymeanthathousesandfieldswillbecoveredwithwa ter.Mostpeoplewillacceptthatandwillbereadytomovetootherplaces.Thenthecountrycan havetherightamountofwateratalltimes;morecropswillbegrown,therewillbemorefoodfor everyone,andtherewillbenomorefloods.
Wecannotuseseawaterforirrigation;thesaltwillnotallowthecropstogrow.Freshwat erisalwaysneeded,anditisverydifficultandcostlytomakefreshwaterfromseawater.This isdoneinafewcountries,butthefreshwaterisfordrinking.Thereisnotenoughatpresentfo rirrigation.Perhapsascientistwillonedayinventacheaperwayofproducingfreshwaterfr omthesea.Iffreshwatercouldbemadecheaply,wecouldgrowmorefood.
56.Itiseasyforfarmerstoirrigatetheirfieldswhen_________.
a.thereisagreatrivernearthecrops
b.thereisalotofwaterthatyear
c.therearemanycanalsinthefields
d.thereisplentyofseawaterinthecountry
A.ab
B.abc
C.bcd
D.abcd
57.Inordertokeepthecountryhavingtherightamountofwateratalltimes,_________should bebuilt.
A.canals
B.dams
C.factories
D.plants
58.Themainideaofthepassageisthat_________.
A.irrigationisthebestwaytoproducemorefoodforhumans
B.manywayshavebeentriedtosavewater
C.irrigationisnecessaryforfarmerstohaveagoodharvest
D.scientistsshouldtrytheirbesttomakeseawaterfreshtomeettheneedsofsociety
59.WhichofthefollowingisNOTwrong?
A.Seawatercanbeusedtoirrigatethefields.
B.Scientistshavefoundwaystotakefreshwateroutofseawater.
C.Itseemsthatwaterplayslittleroleinproducingcrops.
D.Farmersusecanalstoirrigatetheircrops.
课堂检测：
答案:ADACB
课后提升：
答案：56.A57.B58.C59.B。