河南省商丘市九校2018届高三上学期期中联考英语试题含答案

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1、（考试时间:120分钟总分:150分）本试卷分第I卷（选择题）和第II卷（非选择题）两部分第二部分阅读理解（共两节，满分40分〉第一节（共15小题；每小题2分，满分30分〉阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。DryiceisCO2insolidform,withatemperatureofabout・78.5°C.Unlikecommonice,dryicedoesn'tmeltintoaliquid.Whendryicemelts,itturnsintoagas.Sowhenyouseedryice"smoking蔦itsfrozen

2、CO2meltingintoitsgaseousstate.Dryiceisapopularmatterinscientificexperiments.Itcreatesprojectsthatlookcool.Experiment:Healthydryicepopsicles（棒冰）Thisdryiceexperimentwillcatchpeople'seye,especiallylittlekids1becausethedryiceisgoingtobeusedtomakewhattheyounglovetoeat.Itshouldtakeyouabout10minutesorlesst

3、ohaveafrozentreattoenjoy.MaterialsOnelargeblockofdryiceAlargespoonPopsiclesticksOnecupofyourfavoritejuiceAtallglassfilledwithwaterDirectionsUsethelargespoontomakeapopsicle-shapedspaceinablockofdryice.Youcansettheiceonapieceofclothonyourtabletodothiswork・Ofcourse,keepinmindthatitsokayifitsnotexactlyp

4、opsicle-shaped.Addapopsiclesticktothemiddleofthespacesothatwhenyoupourintheliquid,itwillfreezearoundthepopsiclestick.Holdthepopsiclestickinplaceandwaitafewminutesforyourpopsicletoharden.Afterseveralminutes,takeawaythepopsiclefromtheblockofdryiceandputitintoatallglassofwaterforafewseconds.Dothistowar

5、mupthepopsiclejustabit.Otherwise,itwillbetoocold.21.Accordingtothetext,whafsthemaindifferencebetweendryiceandcommonice?A.Theirforms.B.Theirshapes.C.Theirtemperatures.D.Theirstateswhentheymelt.22.Whafsthefirststeptodotheexperiment?A.Tofillthetallglasswithjuice

6、ceinthedryiceforjuice.D.Toputasticktothemiddleofthedryice.23.Howdoesthedryiceworkintheexperiment?A.Itgivesout"smoke".B.Itismixedinthejuice.C.Itmakesthejuicefreeze.D.ItmakesthepopsiclelookcookBSomeofAustraliancyclistshaveused"GPSart1'toturna202km(125-mile)rideintotheoutlineofagoat,whichinterestsmanyp

7、eoplegreatly.ThefourmenmarkedtheirrouteonanappbeforeusingittracktheirjourneyaroundPerth.Whenuploadedtothecomputer,itwasshownasapicture.CyclistBenJonessaidthegroupsettledonagoatbecauseitwasaneasyanimal