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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