内容正文:
选择性必修第三册 3
课时作业 36 Nature
in
words
Ⅰ.
阅读理解
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(2023·江苏镇江联考)
Scientists
say
a
huge
percentage
of
bird
species
are
in
danger
because
their
habitats, or
homelands, are
disappearing.
Traditional
migration
paths
take
birds
through
countries
that
are
not
protecting
the
places
for
birds
to
stop, rest
and
feed. The
scientists
studied
the
migration
or
flight
paths
of
almost
1,500
species.
They
decided
that
91
percent
of
them
passed
through
dangerous
areas.
The
major
danger
for
migratory
birds
is
development. Buildings
and
pavements
have
covered
the
places
where
birds
stop
and
feed
as
they
move
from
one
part
of
the
world
to
another.
One
of
the
scientists
who
worked
on
the
study
says,
“Many
of
these
important
places
have
been
lost
to
land
reclamation(开垦)
because
of
urban,
industrial
and
agricultural
land
expansion. ”
The
problem, according
to
scientists, is
that
many
of
these
small
birds
die
along
their
migration
paths
because
they
dont
have
a
safe
place
to
feed
and
rest. There
is
no
place
to
restore
their
energy
for
the
next
part
of
their
journey. Countries
in
North
Africa, Central
Asia
and
those
along
the
coasts
of
East
Asia
are
having
the
most
difficult
time
in
protecting
land. The
scientists
say
these
countries
do
not
have
enough
areas
that
are
safe
for
birds. One
species
that
doesnt
exist
now
is
the
Eskimo
curlew. “Our
world
gets
poorer
every
time
we
lose
a
species,”
one
of
the
scientists
says.
The
researchers
say
countries
need
to
work
together
and
come
up
with
safe
stopping
areas
for
birds
that
pass
through
their