2023學(xué)年完整公開課版Book4Unit2Usinglanguage 市賽一等獎

Unit2Unit2WorkingthelandUsingLanguageWhatisthesubstance(物質(zhì))weputonthesoilwhichmakescropsgrow?Itisfertilizer.

Howmanykindsoffertilizersdofarmersuse?

Therearetwokinds.Theyarechemicalfertilizersandnaturalones.Whichkinddofarmersusewhentheyaredoingorganicfarming?Doyouknowaboutorganicfarming?

OrganicFarming

ORGANICFARMING

Organicfarmingissimplyfarmingwithoutusinganychemicals.1.Scanthepassageandgetthemainidea.Chemicalfertilizerscancausemanyproblems,soorganicfarmingisbecomingmorepopular.2.Skimthepassageandfindoutthemainideaorthetopicsentenceofeachparagraph.3.Findandwritedownthemethodsandadvantagesinthepassage.MethodsoforganicfarmingAdvantagesofmethodsFarmersusenaturalwastefromanimals.Thismakesthesoilricherinmineralsandsomorefertile.MethodsoforganicfarmingAdvantagesofmethods1Farmersusenaturalwastefromanimals.1Thismakesthesoilricherinmineralsandsomorefertile.2Farmersoftenchangethekindofcropineachfieldeveryfewyears.2Changingthecropsrenewsthemineralsinthesoilandhelpsitbecomerichandhealthy.MethodsoforganicfarmingAdvantagesofmethods3Farmersplantcropswithdifferentlengthsofroots.3Thisusesdifferentlevelsofsoil.4Farmerssometimesplantgrassbetweencropsandleaveitintheground.4Thispreventswindorwaterfromcarryingawaysoilandactsasanaturalfertilizer.1.Whyarechemicalfertilizerssopopularinfarmingtoday?Answerthefollowingquestionsafterreadthepassage.Theyareagreatwaytostopcropdiseaseandincreaseproduction.2.Whatproblemscanbecausedbyusingchemicalfertilizers?Theycandamagethelandbykillinghelpfulbacteriaandpestsandbystayinginthegroundandundergroundwaterforalongtime.Theydamagepeople’shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses.3.Whatisorganicfarming?Organicfarmingmeansgrowingcropswithoutusinganychemicals.4.Whatisthemainreasonforusingorganicfarmingmethods?Themainreasonforusingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople’shealth.1.Manyofthesechemicalscanleadtocancer...

很多化學(xué)成份能導(dǎo)致癌癥……

閱讀下列句子,注意leadto的意思和用法。

1)Hiscarelessnessledtotheaccident.2)Thistestisobviouslybadbecauseitleads toincorrectlearning.3)Toomuchworkandtoolittlerestoften leadstoillness.[自我歸納]leadto意為“_________________”,后多跟名詞或代詞。導(dǎo)致、造成(后果)[聯(lián)想]resultin引起(某種結(jié)果)、使獲得(某種成果)、結(jié)果……如：Theaccidentresultedintwodeaths.resultfrom由……造成、因……而產(chǎn)生如：Sicknesssometimesresultsfromeatingtoomuch.[即學(xué)即練]用leadto的適當(dāng)形式完成句子。1)Studentsshouldalwaysrememberthathardworkisthemainwaywhich_______success.2)Thebadweather_____aterribleaccidentafewdaysago.ledtoleadsto2.Theyfocusonkeepingtheirsoilrichandfreeofdisease.

農(nóng)民關(guān)心的是保持土壤肥沃并且免受病害。根據(jù)語境推斷focus在下列句子中的含義,并從a-d中找出與每句話中的focus相符合的英文釋義。1.Thefocusofthemeetingchangedfrompopulationgrowthtotheeducationofwomen.2.Bringtheobjectintofocusifyouwantaclearphotograph.3.Shetriedtofocushermindonherwork.4.SheturnedthecameraandfocusedonMartin’sface.cabda.thething,person,situation,etc.thatpeoplepayspecialattentiontob.apointordistanceatwhichtheoutlineofanobjectisclearlyseenbytheeyeorthroughalensc.topointacameraatsomething,andchangethecontrolsslightlysothatyoucanseethatthingclearlyd.togivespecialattentiontooneparticularpersonorthing,ortomakepeopledothisfocusn.焦點、中心點

v.

集中、聚焦focuson集中(注意力、精力等)于[翻譯]1)Becauseofhisstrangeclothes,he immediatelybecamethefocusof attentionwhenheenteredtheoffice.由于他的奇裝異服,所以一走進(jìn)辦公室他便成了大家注意的焦點。2)Focusyourcameraonthosetrees.3)I’msotiredthatIcan’tfocusonanythingtoday.把照相機的焦點集中在那些樹上。今天我太累了,精神集中不起來。3.Thisalsokeepstheair,soil,waterandcropsfreefromchemicals.

同時還可以讓空氣、土壤、水以及農(nóng)作物不受化學(xué)物質(zhì)的污染。

keep…freefrom遠(yuǎn)離，避免keepfreefromemotionalreactions

避免激動的反應(yīng)

keepfreefromrestrictions

避免受到限制

4.Cropssuchaspeasorsoybeansputimportantmineralsbackintothesoil,makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil.

像豌豆或大豆這樣的農(nóng)作物將重要的礦物質(zhì)帶回土壤，從而使之適宜于種植要求土壤肥沃的農(nóng)作物。[分析]①本句結(jié)構(gòu)比較復(fù)雜。其主干結(jié)構(gòu)為:主句(Cropsputimportantmineralsbackintothesoil)+狀語(makingitreadyforcrops)。②狀語中又包含“make+it+形容詞”結(jié)構(gòu)和由that引導(dǎo)的定語從句(thatneedrichandfertilesoil)。

5.Someorganicfarmerspreferplantinggrassbetweencropstopreventwindorwaterfromcarryingawaythesoil,andthenleavingitinthegroundtobecomeanaturalfertilizerforthenextyear’scrop.

還有一些有機耕作者喜歡在農(nóng)作物之間種草，以防止水土流失，并且把草流在地里，從而成為來年農(nóng)作物的天然肥料。[分析]①本句的主干結(jié)構(gòu)是一個簡單句,其結(jié)構(gòu)是:主語(farmers)+謂語(prefer)+并列賓語

(planting...+leaving...)。②其中betweencrops和intheground作地點狀語。③兩個賓語后面又分別帶有一個不定式作目的狀語(topreventwindorwaterfromcarryingawaythesoil和tobecomeanaturalfertilizerforthenextyear’scrop)。Whatisthemaintopicoftheconversation?Thepossiblebadeffectsofchemicalfertilizersonthefruitandvegetablesthatweeattoday.Listening1.PaulthinksthatCarrieisnottellinghimthetruth.2.Usingchemicalfertilizersalwaysmakesvegetablesemptyinside.3.Today’sfruitisnotashealthyforpeopleasfruitfiftyyearsago.Listentothedialogueasecondtime.Decideifthefollowingstatementaretrueorfalse.

TFT4.Eatingmorevegetables