成才之路·英语路漫漫其修远兮吾将上下而求索外研版·选修8TheConquestoftheUniverseModule5背景e站链接ItisinterestinghowNASAchosetheirastronautsforlandingonthemoon.Theychosemenbetweentheageoftwentyandthirtyfive.Therewereaboutfiftyofthem.Manywereexperiencedairpilots.Otherswerescientistswithtwoorthreedegrees.NASAtelephonedeachmantheyweregoingtochooseandtoldhimthedangershemightgetin.Theythenaskedhimifhewaswillingtobetrainedasanastronaut.“Howcouldanymanrefusesuchanexcitingjob？”Thehealthandphysicalconditionsofpilotswere，ofcourse，verynecessary.Onlythoseinverygoodhealthandphysicalconditionwerechosen.Whilebeingtrainedtobeastronauts，theywentthroughmanycourses.Theystudiedthestarandthemoon，andtheyalsostudiedgeology，thescienceofrocks.Thiswasnecessarybecauseastronautswouldhavetolookforrocksonthemoon.Theywouldtrytofindrockswhichmighthelptotelltheageofthemoon.Theywerealltrainedtoflyinhelicopters.Thesehelicopterslandeddirectlydowntogivethemsomeexperienceofthewaythespaceshipwouldreallylandonthemoon.Theywerealsotaughttheunknownfactsabouttheconditionsinspace.Theylearntallthetechnicaldetailsofthespaceshipsandrockets.Theyvisitedthescientistsandengineerswhodesignedthespaceshipsandrockets.Theyvisitedthefactorieswherethespaceshipsandrocketswerebuilt.Theylearnthoweverypartofaspaceshipanditsinstrumentswork.Theyalsolearnteverydetailofthegroundcontrolsystem.Inaword，tobechosenasanastronaut，onemustbeingoodhealth，wellinformedinscienceandgoodatpiloting.
