Part IV????????????????? Error Correction??????????? ( 15 minutes)
???? When? you? board? a? plane,? a? machine? may? soo? be
scanning?? more? than? your? bags - it? may? be? studying
your?? face.??? A?? computer?? comes?? onto?? the?? market?????? 71.
recently?? which?? promises?? to?? be?? able?? to?? recognize?????? 72.
faces at a glance from a video camera.
???? The? system,? known? as? PARES,? has? many? possible?????? 73.
use???? in???? different???? fields???? but???? the???? most?????? 74.
prominent???? is??? like??? to??? be??? monitoring??? crowds
at?? airports?? for?? known?? terrorists.??? Such?? a?? task
is?? far?? from?? the?? capabilities?? of?? a?? conventional
image???? processor,???? which???? is???? too???? quick???? to?????? 75.
be??? of??? practical??? use.???? Moreover,???? it??? is??? too
easily? confused,?? if? image? of? a? face? in? its? memory?????? 76.
is??? only??? a??? frontal??? view.??? For??? example,??? they?????? 77.
might??? not??? recognize??? that??? same??? face??? when
presenting with a side view of the face.??????????????????????????????? 78.
????? PARES relies in the new technology of neural(神經(jīng)的)?????? 79.
networks.???? Like???? the???? brain,???? it???? has???? many
interconnected???? memory????? "cells",????? which???? work
simultaneously???? rather???? than???? in???? sequence???? and
thus??? greatly??? speed??? up??? the??? computation.??? And
like??? the??? brain,??? the??? neural??? network??? can??? be
trained???? to???? concentrate???? on???? essentials???? while
ignoring??? of??? inessential??? matters - it??? can??? "learn"?????? 80.
what' s??? important??? and??? what??? isn' t.???? But??? the
training??? is??? boring:??? and??? operator??? must??? patiently
correct the computer's mistakes.

Part V???????????????????? Writing??????????????? (30 minutes)
Directions: For this part, you are allowed 30 minutes to write a composition on the title: Motorcycles And City Traffic. You should base your composition on the following
????????? outline ( (given in Chinese ):
??? 1．近年來中國城市中的摩托車
??? 2．摩托車的優(yōu)點和缺點
??? 3．你對我國城市中摩托車發(fā)展前景的看法
You must write your composition in no less than 120 words on the Composition
Sheet and remember to write it in readable hand - writing.
Motorcycles And City Traffic

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