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Present  and  Future  Unreal  Conditionals;  Wish



                    EXPLORE


                     1   READ  the  article  about  the  debate  over  animals  from  the  past.  What  is  the  main  question
                         in  this  debate?






                       Woolly  mammoths,  saber-toothed  cats.  These  animals  went  extinct!  thousands  of  years  ago.
                    Today,  more  animals  continue  to  go  extinct,  and  every  year  the  number  increases.  Scientists  wish
                    they  could  change  the  situation.  Some  of  them  would  like  to  bring  extinct  animals  back  to  life.
                    Experiments  with  a  few  species  of  birds  and  frogs  suggest  that  this  might  be  possible  someday.
                    Is  it  a  good  idea  to  revive?  extinct  animals?  Some  people  say  yes,  but  others  don’t  agree.
                    The  Argument  for  Revival

                       Reviving  some  species  could  help  the  environment.  Consider,  for  example,  the  woolly  mammoths.
                    They  lived  on  grass-covered  land  in  Siberia,  Russia,  12,000  years  ago.  However,  after  mammoths
                    disappeared,  the  land  turned  into  tundra.?  Not  many  plants  can  grow  there  now.  If  large  numbers
                    of  mammoths  were  brought  back,  they  could  improve  the  land.  Scientists  would  also  benefit.  If
                    researchers  could  study  a  large  variety  of  revived  animals,  they  would  learn  a  lot;  and  much  of
                    the  information  could  be  used  to  help  living  species.
                    The  Argument  against  Revival
                       Natural  habitats  change  over  time.  Would  animals  survive  if  they  were  revived?  Would  they
                    die  without  their  old  habitats?  Would  they  be  a  danger  to  creatures  living  in  those  regions
                    now?  Perhaps  they  would  be  harmed  by  hunting  or  pollution  and  die  out  again.  In  addition,  if
                    scientists  focused  on  extinct  species,  they  might  not  have  time  to  spend  on  living  species.
                       There  are  still  many
                    questions  about  extinct
                    species  revival.  Even  if
                    scientists  had  more
                    answers,  people  would
                    continue  to  debate  the
                    issues.

                    1  extinct:  no  longer  living
                    ?  revive:  bring  back  to  life
                    8  tundra:  treeless  flat  land  found

                     mostly  in  the  Arctic  Circle

            |  me  Wanle  ex-T0 lane (0919  <>) at eg  =(21  <3
               the  hair  on  this.  woolly.
               mammoth-replica.  (Victoria,
               British  Columbia,  Canada)











        366  CONDITIONALS
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