用英语介绍狗

Dogs(狗)
Dogs
belong
to
the
canine.
When
a
dog
follows
its
nose,
it's
actually
being
led
by
thee
key
senses.
Sight:a
glimpse
of
the
enemy
saves
them
barking
up
the
wrong
tree.
Sound:
a
bark
can
be
a
fierce
threat,
but
it's
also
how
canines
make
their
long
distance
calls.
Smell:
this
tells
a
dog
more
than
all
the
other
senses
put
together.
Inside
its
nose
are
around
two
hundred
million
smell
sensitive
cells,
forty
times
more
than
in
humans.
Through
them
the
dog's
brain
can
pick
up
signals
from
one
molecule
of
scent
in
a
million.
It
gives
the
dog:
a
completely
different
picture
of
the
world,
based
on
what
it
smells,
rather
than
what
it
sees.
Flowers
are
irrelevant
to
a
dog.
So
their
scent
is
meaningless.
But
food
is
a
serious
matter.
What
to
us
is
an
empty
plate,
is
covered
with
the
smell
of
chicken
to
a
hungry
dog.
狗
狗属于犬科劝物。
当狗用鼻子嗅着前行时，实际上有三种感觉在起作用：视觉，瞥一眼就知道敌人在哪儿；听觉，犬吠有一种凶猛的威慑力，这也是犬科动物闽相互嗅寻的方式；嗅觉，能给狗提供的信息比其他感觉总和还多。
(英语作文网收集整理)
狗的鼻孔大约有2亿左右的嗅觉细胞——比人多40倍。通过这些细胞，它的大脑能从100万个气体分子中筛选出1个。根据所闻而不是所见的东西，展现给狗的是一个完全不同的画面。
花对狗来讲无足轻重，所以花香对狗无关紧要。可食物是件大事，对我们来说是一个空盘子，可对一只饥肠辘辘的狗来说却散发着鸡肉的香味。