1
2016
下半年英语四级完形填空试题及?
案解?/p>
13
Today,
most
countries
in
the
world
have
canals.Many
countries have built canals near the coast, and parallel 1 the
coast.Even
in
the
twentieth
century,
goods
can
be
moved
more cheaply by boat than by any other 2 of transport.These
3 make it possible for boats to travel 4 ports along the
coast without being 5 to the dangers of the open.Some canals,
such as the Suez and the Panama, save ships weeks of time by
making their
6 a thousand
miles
shorter.Other
canals permit
boats
to
reach
cities
that
are
not
7
on
the
coast,
still
other
canals 8 landsswheresthere is too much water, help to 9 fields
wherethere
is
not
enough
water,
and
10
water
power
for
factories and mills.The size of a canal 11 on the kind of boats
going
through
it.The
canal
must
be
wide
enough
to
permit
two of the largest boats using it to 12 each other easily.It must