选修八Module5TheConquestoftheUniverse&Module6TheTangPoems单元提升课文与语法填空阅读所学课文,在空白处填入1个适当的单词或括号内单词的正确形式
EversinceNeilArmstrongfirstsetfootontheMoonbackon21stJuly,1969,peoplehavebecome1
(accustom)totheideaofspacetravel
Therewereseveralmorejourneysintospaceoverthenextfewyearsbutthesinglespaceshipswere2
expensivethatpeoplewerenolongerenthusiasticaboutaspacetravelprogrammewhichwassocostly
Thingsdidn’tchangeuntilthe3
(arrive)ofthespaceshuttle
ThefirstshuttleflightintospacewastheColumbia,4
aimwastotestthenewshuttlesystem,togosafelyupintoorbitandtoreturntotheEarthforasafelanding
thetimetheChallengertookoffin1986,theworldseemedto6
(lose)itsfearandwonderattheamazingachievementofpeoplegoingupintospace
Thiswasgoingtobeaveryspecialspaceflightandsomanypeopletunedin7
(witness)thetake-offonTV
SadlytheChalleng