精选优质文档-倾情为你奉上Unit 2 Text A1. Why wont oil prices rise at all over the long time?Firstly, because producers need the cash from oil too much to let their supply be interrupted for long. Secondly,and more important, because demand growth cant push prices upward as long as it is balanced by supply growth. 2. Why cant the members of the OPEC raise oil prices?Because if they do,non-OPEC sources will grab market share by developing fields where technology has made production affordab