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1、.惠州市2017届高三第二次调研考试英语2016.10本试卷分选择题和非选择题两部分。满分120分（最终成绩按总分135分进行折算），考试用时120分钟。注意事项：1.本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。2.答题前，考生务必将自己的姓名，准考证号填写在答题卡相应的位置。3.全部答案应在答题卡上完成，答在本试卷上无效。4.考试结束后，将答题卡交回。第I卷第二部分阅读理解（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。AFl
2、yingcanbefunandexciting,nomatterwhatyouchoosetodo.Buthaveyoueverthoughtaboutwhathappensontheplane?Herearesomeofthemostinterestingthingsthathappen.Doplanesdrophumanwastewhileinflight?Whenyouflushatoiletonaplaneatanaltitudeof30,000feet,theremustbeaquestiononyourmind:“Isthisabou
3、ttolandonafarmer’shouse?”Takeiteasy.Aplane’stoiletscannotbeemptiedinthesky.Thewasteisstoredintanksonboardandcanonlybeoperatedbythegroundcrew.However,whyisnewslike“blueicefallingoutofaplane”reported?Isblueicehumanwaste?Storiesaboutblueicearetruebutrarelyhappen.TheFAAsaidsomela
4、vatoryholdingtankshaveabluechemicalinthem.Ifatankleakshighintheair,thewaterfreezesonceithitstheoutsideair,andmeltsbeforeitlandsontheground.Isturbulence(颠簸)dangerous?It’sscary,uncomfortableandspillsyourdrink.Butisturbulencesomethingyoureallyneedtoworryabout?Absolutelynot.It’sp
5、artofflying,anditisn’tdangerous.Turbulenceiscausedwhentwomassesofairhitoneanotheratdifferentspeeds.Wind,thunderstormsandclosenesstomountainsareallpossiblereasons.Despitehowdangerousitfeels,turbulencewon’tcrashyourplane.Eveninextremelyroughair,thewingisnotgoingtobreakoff.Whyar
6、eplanewindowsround?......Ifyouhavetraveledbyplanebefore,youmayhavenoticedthateveryplanewindowhasarounddesign.Thisisn’ttomaketheplanelookgood.It’sforthesafetyofeveryoneonboard.Astheairplaneflieshigherandhigher,theoutsideatmosphericpressuregetslowerandlower.Intheend,thepressure
7、insidetheplanebecomesgreaterthanthepressureoutside.Atthistime,windowsthatcanresistpressureareneeded.Squarewindowscancrack.Thedifferentpressureinsideandoutsideputstressontherightangles.However,roundedcornershelptoreducethesestressesbyspreadingthemaroundthewindow.21.Itcanbelear
8、nedfromthepassagethat________.A.passengers’wastefallsontothelanddire
