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1、2019-2020年高中英语Unit2SailingtheoceansUsingLanguage课时跟踪训练新人教版Ⅰ.单词拼写1．TheRedArmymensufferedmanyhardshipsduringtheLongMarchwithlittletoeatandwithoutwarmclothes.2．Gradually,_thechildrenbegantounderstandmoreandmore.3．Victoryinthelastgamegavethemapsychologicaladvantageoverthei
2、ropponents.4．Thistypeofworkrapidlybeesroutineandattractsnobody.5．Canfuturereallybeforeseen?Ⅱ.单句改错1．Tom,inadditionhisclassmates,alsojoinsintheactivities.addition后加to2．Dressinginablueskirt,thegirllooksverypretty.Dressing→Dressed3．Agoodnightoutwillhelpyoutakeyourmindsoffe
3、xams.minds→mind4．Marytearedthelettertopieceswithoutreadingit.teared→tore5．I'monadilemmaoverwhethertotellhimornot.on→inⅢ.阅读理解Thevastseasurroundingthecontinentshasalwaysinterestedthebravehumanbeing.Fromtheseamancangetfood,minerals,aswellastreasure.Forthousandsofyears,man
4、hasbeensailingonit,buthecouldnotgetfarbeneathitssurface.Manhasbeendreamingofexploringdeepintothesea.However,thisisonlyadreamasheisnotafish.Tostaydeepintheseahemustbreatheair,sohecan'tstayunderthewater'ssurfaceforanylengthoftime.Toexploredeepwater,manisconfrontedwitheve
5、nmoredangersandproblems.Adiverwhowantstostayunderwaterformorethanafewminutesmustbreatheinandoutairorhaveaspecialmixtureofgasesifnaturalairisnotavailable.Asarule,hemaywearadivingsuitandhaveairpumpedtohimfromabovethewater.Heisequippedwithatankofaironhisbackandbreathethro
6、ughahose(软管)andamouthpieceattachedtothetank.Itisdangeroustodiveunderwaterbecausewaterweighs800timesasmuchasair.Tonsofwaterpushesagainstadiverwhenhedivesdeepintothesea.Hisbodyisundergreatpressure.Whenadiverisundergreatpressure,hisbloodtakesinsomeofthegaseshebreathes.Ash
7、erisestosurface,thewaterpressurebeesless.Ifthediverrisestooquicklytothewatersurface,thegasesinhisbloodwillnotdisappear,instead,theyformbubbles.Thediveristhenlikelytobesufferingfromthebends(潜水员病)．Thebendscancauseadivertodoubleupinpain.Ifthediverdoesnottakecertainmeasure
8、stoprotecthimself,theycanevenkillhim.1．Onthewhole,thispassageisabout________.A．specialmixturesofgasesindeepseaB．thepr
