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课时作业37CloningⅠ.阅读理解(2021·山西忻州一中月考)Cookingfoodoverasmokyfireisfoundeverywhereintheworld.Itisoftendifficulttofindwoodforthefire.Peoplewhodonothavewoodmustspendlargeamountsofmoneyoncookingfuel.However,thereisamucheasierwaytocookfoodusingenergyfromthesun.Solarcookers,orovens,havebeenusedforcenturies.ASwissscientistmadethefirstsolarovenin1767.Today,peopleareusingsolarcookersinmanycountriesaroundtheworld.Peopleusesolarovenstocookfoodandtoheatdrinkingwatertokillbacteriaandotherharmfulorganisms.Therearethreekindsofsolarovens.Thefirstisaboxcooker.Itisdesignedwithaspecialwallthatshinesorreflectssunlightintothebox.Heatgetstrappedunderapieceofglassorplasticcoveringthetopofthecooker.Aboxoveniseffectiveforslowcookingoflargeamountsoffood.Thesecondkindofsolarovenisapanel(嵌板式)cooker.Itincludesseveralflatwalls,orpanels,whichdirectlyreflectthesun'slightontothefood.Thefoodisinsideaseparatecontainerofplasticorglassthattrapsheatenergy.Peoplecanbuildpanelcookersquicklyandwithveryfewsupplies.Theydonotcostmuch.InKenya,forexample,panelcookersarebeingmanufacturedforjusttwodollars.Thethirdkindofsolarovenisaparabolic(抛物线的)cooker.Ithasroundedwallsthataimsunlightdirectlyintothebottomoftheoven.Foodcooksquicklyinparabolicovens.However,thesecookersarehardtomake.Theymustbereaimedoftentofollowthesun.Paraboliccookerscanalsocauseburnsandeyeinjuriesiftheyarenotusedcorrectly.Youcanmakesolarovensfromboxesorheavypaper.Theywillnotcatchfire.Paperburnsat232degreesCelsius.Asolarcookernevergetsthathot.Solarovenscookfoodatlowtemperaturesoverlongperiodsoftime.Thispermitspeopletoleavefoodtocookwhiletheydootherthings.Tolearnmoreaboutsolarcooking,youcanwritetoSolarCookersInternational.ThepostaladdressisnineteennineteenTwentyFirstStreet,Sacramento,California,ninefiveeightoneone,USA.Oryoucanvisitthegroup'sInternetWebsite.Theaddressis.1.Howlongisthefirstsolarcookersinvented?A.About1767year.B.Morethan300years.C.Morethan250years.D.Lessthan250years.2.Inwhichofthefollowingcolumncouldwefindthepassage?A.DevelopmentReport.B.AgriculturalReport.C.HealthReport.D.EducationReport.3.WhichofthefollowingisTRUE?A.ThefirstsuncookerwasmadebyaSwisssoldier.B.Paraboliccookerscanbedangeroussometimes.C.Suncookersoftengethotterthan232℃.D.Itismoreexpensivetocookwithasuncookerthanonfire.4.Whichofthefollowingcouldbethebesttitleofthepassage?A.DifferentWaysofCookingB.TheHistoryoftheSolarCookersC.HowtoChooseSolarCookersD.CookingMealswiththeSunforFuel答案与解析1.D细节理解题。从第一段中ASwissscientistmadethefirstsolarovenin1767.可知选D项。2.A文章出处题。从全文内容可知A项正确。3.B细节理解题。从第四段最终一句Paraboliccookerscanalsocauseburnsandeyeinjuriesiftheyarenotusedcorrectly.可知。4.D标题归纳题。从全文内容归纳可知。Ⅱ.阅读填句VisitingLondoncanbeanexpensivetrip.__1__ThefollowingstepscanhelpyoufindcheapalternativesfortransportforyourLondontrip.•Familiarizeyourselfwiththecity.DosomehomeworkaboutdifferentpartsofLondonaheadoftimeanddeterminesspecificallytheareawhereyouwillbestaying.Howtoestablishwhereinthecityyouwillbestayingandthedistanceyouarefromthemajortouristattractionsyouwanttovisit?__2__•FindalocalproviderofTransportforLondonticketsortravelcards,sinceyourfirstbargainpurchasewillbeanOysterCard.TravelingaroundLondonwithanOysterCardwillgiveyouaccesstothecheapestoptionoftransportationmethods.TheOysterCardisacceptedcitywideonbuses,boatsandtheLondonUnderground,knownbythelocalsas“thetube”.•__3__TheTubeisthecheapestandmostreliableformoftransportationandrunsfromaround6a.m.untilaround1a.m.,dependingonthelineorthestation.•MakethemostoftheOysterCard.__4__withahighconcentrationincentralLondon.IfyouarestayinganywhereincentralLondon,therewillbeatubestationlessthan10minutesaway.•TheTransportforLondonwebsiteoffersatubestationsearchfacilitytofindthenearestsubwaystationtoanylocationinthecity.Whenyoufindatubestation,youcaneasilylocatetheclosestbusstopbyusingthecomparisonbustubemapsatthestation'sentrance.•FollowtheTransportforLondonTubeGuidetoyourdestinationsandalwaysplanahead.__5__anditwillavoidwastedtripsonthetubeanddoublingbackonyourjourney.A.Youcanuseastreetmap,oranonlinemapsearchengine.B.ByvisitingtheTransportforLondonwebsite,peoplecanavoidgettinglost.C.SoestablishingabudgetandfindingbargainswillhelpyougetaroundLondononthecheap.D.ThebusisthecheapestmeansoftransportinLondon.E.SeekoutyournearestTubeStation.F.Makingaplanfortransportwillsaveyourunnecessaryexpenses,G.Thereare287tubestationsinLondonthataccepttheOysterCard,答案与解析1.C依据下一句Thefollowingstepscanhelpyoufindcheapalternatives...可知。2.A依据上一句Howtoestablish...可知。3.E依据下一句TheTube...可知。4.G依据上一句MakethemostoftheOysterCard.可知。5.F依据本空后的anditwillavoidwasted...可知。Ⅲ.语法填空Linda:Ourflighthasbeendelayedfortwohours.Myhusbandmustbewaiting__1__(anxious)atLondonAirport.David:You'dbettermakeaphonecallandtell__2__aboutthesituationhere.Linda:Right.Whatareherefor?David:Iwasat__3__twoweekinternationalconferenceonspacetechnologyinBeijing.Linda:How__4__(interest)!Iwasherewithatour.David:Really?HowdidyoufindBeijing?Linda:Beijingisoneofthemost__5__(beauty)citiesthatIhaveseen.Ithasallthecharacteristicsofabidcity.Ithasimpressedmealot.__6__Beijing,I'vealsobeentoShanghai,HangzhouandNanjing.Chinaisreallyrichinhistoryandtradition.Isthisyour__7__(one)triptoChina?David:No,Icomehereeveryyearbutalways__8__business.Ihavenochancetovisitthescenicspotshere.Linda:Whatapity!Youshouldhave.Excuseme,__9__I'llphonemyhusband__10__casehewillbeworried.David:OK.Justdoit.答案与解析1.anxiously修饰实义动词用副词。2.himhim代替上文的myhusband。3.a表示“数量一”,用不定冠词。4.interesting修饰物用interesting。5.beautifuloneof后跟形容词的最高级形
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