原:1.As? the? scientists? said, the? global? has? been? one? of? the? most? serious? problems? human? face.

改:As? is? predicted? by? scientists , global? pollution? has? become? one? of? the? most? serious? problem? humans? are? faced? with.

原:2.The? competition? for? these? jobs? are? tough ,the? number? of? applicants? this? year? is? five? times? that? of? last? year.

改:Competition? for? these? jobs? is? very? tough? ,we? have? five? times? as? many? applicants? this? year? as? we? did? last? year/ there? are? five? times? as? many? applicants? this? year? as? there? were? last? year.

原:3.As? is? convinced? by? fact, the? education? should? fit? into? the? plan? that? develop? the? country's? education.

改:As? it? is ,education? program? should? fit? into? national? economic development? plan.

原:4.This? car? burns? too? much? gas , the? price? is? almost? twice? as? much? as? l? want? to? pay./is? one? times? higher? than? l? want? to? pay/is? two? times? the? money? l? want? to? pay/more? than? two? times? as? often? as? I? want? to? pay/is? two? times? that? of? l? want,moreover.

改:The? car? burns? too? much? gas,and? moreover,the? price? is? almost? twice? as? much? as? I? intend? to? pay.

原:5.To? learn? a? significant? international? ? ? ? ,we? need? to? think? about? its? history? and? ? ? ? background? first.

改:We? should? consider? its? history? and? political? background? at? first? when? want? to? know? a? major? international? event.