资源描述：
《新高考英语必备--- 精校word版课时提升作业 十七 必修4 Unit 2》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、高考英语必备---课时提升作业十七必修4 Unit2 Workingtheland(限时35分钟)Ⅰ.阅读理解A世纪金榜导学号79060305(2018·茂名模拟)Ifyoubelieveinthermometers(温度计),youshouldbelieveinglobalwarming.Andifyoubelieveineatingfrieswithyourburger,youshouldworrymoreaboutcarbonemissions. Itwon’thappenovernight,butasth
2、eplanet’sclimatechanges,thegrowthcyclesofmaincropswillallbeheavilyaffected.Herearethreeofthecropsthatmightnotbeattheheat. Thepotatoactuallyneedsagreatdealofbeautyresttodevelopproperly.“Theyneedacoolnighttimetemperatureinordertostartgrowingthetuber,thepartthat
3、weeat,”Nelsonsays. Temperatureandaltitudearetwoprimaryconcernsincoffeegrowth,andfarmersarestuckbetweenarockandahardplace.“Weknowthatcoffeegrowsinacertaintemperaturerange,”Nelsonsays.“They’vebeenmovingupthemountains,butatsomepointyourunoutofmountainstomoveup.”
4、Higher-gradestrainsofArabicacoffeeinCentralAmericanregionsareatparticularriskduetotheneedforlowergrowingtemperature,especiallysincediseasesandpestsarealsobecomingmoreofafactorastemperaturesrise. Evenifyou’relookingatthedirecteffectsoftemperaturealone,riceisin
5、trouble.“Asnighttimetemperaturesgoup,thericeisgoingtohaveaproblemfloweringandwon’tmakeasmanyseeds,”Nelsonsays.Inadditiontothisdirectheatconsequence,risingsealevelswillfloodmanyricefieldsanddestroywatersalinitylevels,whiledroughtswilllowerproduction,raiseprices
6、,andfurthershamewesternerswhoaretooclumsywithchopstickstobeabletocleartheirplatesonceanewgrainisadopted.【文章大意】本文主要介绍的是马铃薯、咖啡和水稻这三种农作物需要凉爽的夜间温度才能够生长得好,如果气温变化太大则不能生存。1.Whatistheclosestmeaningtotheunderlinedword“emissions”inParagraph1?A.Mixture. B.Pollution.C
7、.Goingdown. D.Lettingoff.【解析】选D。词义猜测题。根据前面的globalwarming可知,吃汉堡薯条时你担忧的是碳排放。emission排放。2.Whatdoesthepotatoes’developmentneedaccordingtoNelson?A.Enoughwaterandsalt.B.Cooltemperatureatnight.C.Muchsunshineandfreshair.D.Suddenriseofthetemperature.【解析】选B。细节理解题。根据第三段
8、中的Theyneedacoolnighttimetemperatureinordertostartgrowingthetuber可知,马铃薯的生长需要凉爽的温度。3.Thericeisdifficulttoflower,probablybecause________. A.sealevelsgoupsuddenlyB.thetemperaturerisesa
