Both reading and listening are about the number of birds in the United State. Whereas the reading claims that the number of birds will necessarily decline, and gives three supporting reasons. The listening disagree with this claim, and cast doubt on each reason.
To start with, according to the passage, the increase of the human population and sattlement would decrease the the traditional areas suitable for birds. However, the lecturer finds this argument un convencing. She explains how the birds have now better and larger habitats. While some birds' number decrease, other kinds of birds' number increases. Then she gives some examples of these birds like falcon
Secondly, according to the author, the increase in agricultural activities also have the same effect on the birds habitats. As a result, the birds populations in the rural areas will continue to decline. But the professor challengs this by saying that this is might happening, but not the way mention in the passage. Nowadays, new technology used to increase the efficiency of the land to produce more per land. So, no need to expand the lands.
Finally, according to the reading, the pesticidal will effecting the birds by eaither killing them, or effecting their reproducing. In contrast, the lecturer says that this is incorrect projection of the history to the future. Now, two new strategies are used to protect the birds: using less toxic material and developing more pesticial resistance crops, which do not harm the birds at all.
Both reading and listening are about the
number
of
birds
in the United State. Whereas the reading claims that the
number
of
birds
will
necessarily
decline, and gives three supporting reasons. The listening disagree with this claim, and cast doubt on each reason.
To
start
with, according to the passage, the
increase
of the human population and
sattlement
would decrease
the the
traditional areas suitable for
birds
.
However
, the lecturer finds this argument
un
convencing
. She
explains
how the
birds
have
now
better and larger habitats. While
some
birds'
number
decrease, other kinds of birds'
number
increases
. Then she gives
some
examples of these
birds
like
falcon
Secondly
, according to the author, the
increase
in agricultural activities
also
have the same effect on the
birds
habitats.
As a result
, the
birds
populations in the rural areas will continue to decline.
But
the professor
challengs
this by saying that this is might happening,
but
not the way mention in the passage. Nowadays, new technology
used
to
increase
the efficiency of the land to produce more per land.
So
, no need to expand the lands.
Finally
, according to the reading, the
pesticidal
will effecting the
birds
by
eaither
killing them, or effecting their reproducing.
In contrast
, the lecturer says that this is incorrect projection of the history to the future.
Now
, two new strategies are
used
to protect the
birds
: using less toxic material and developing more
pesticial
resistance crops, which do not harm the
birds
at all.