B
There
s
much
to
see
under
the
sea,
but
you
need
to
remember
that
light
eaves
differently
in
water
than
in
air.
The
objects
appear
closer
to
you
than
they
exactly
are.
You
might
find
yourself
reaching
out
to
touch
something
and
completely
missing
it.
Objects
under
water
will
appear
larger
than
they
would
on
the
surface,
too.
Be
careful
not
to
tell
any
stories
about
the
big
fish
that
got
away.
That
fish
might
not
be
so
big
after
all!
It's
just
because
sometimes
things
can
seem
to
be
as
much
as
about
33
percent
bigger
in
water!
Wh
ats
more,
in
deeper
water,
colors
just
don't
seem
as
bright.
In
fact,
it
looks
as
if
some
colors
are
missing
Remember
the
color
of
an
object
results
from
the
wavelengths(is
k)
of
light
that
are
reflected(E
Af
)from
its
surface.
And
light
is
taken
in
as
it
moves
down
through
the
water.
Swimmers
wear
wet
suits
to
keep
warm
underwater.
Let's
take
a
bright
red,
yellow
and
blue
wet
suit
as
an
example.
These
colors
are
hard
to
miss
on
the
surface
of
water.
Watch
carefully
the
changes
in
color
as
you
descend
in
the
water.
The
red
part
now
looks
almost
black
because
the
red
light
wavelengths,
the
longest
among
these
three
colors,
are
missing.
As
you
go
down
deeper,
the
same
thing
will
happen
to
the
yellow
part
and
in
the
end
to
the
blue
part.
Even
at
a
place
of
about
6
to
9
meters
underwater,
you
will
look
terrible,
like
a
monster!
And
you
have
to
wait
for
your
return
to
the
surface
to
enjoy
the
bright
colors
again
)56.
You
miss
the
object
underwater
when
you
want
to
touch
it
because
A.
your
eyesight
is
quite
poor
B.
you
are
not
quick
enoug
C.
it
is
not
as
close
as
it
seems
D
it
disappears
very
quickly
)57.
The
example
of
the
wet
suit
is
used
to
explain
the
change
of
of
an
object
underwater
A.
the
size
B
the
color
C.
the
position
D
the
weight
()58.
The
underlined
word“
descend”
probably
means“
in
Chinese
in
this
passage
A.上升
B.漂浮
屏息
D.下潜
)
59.
Which
of
the
following
is
TRUE?
A.
A
four-meter-long
fish
looks
three
meters
long
underwater.
B.
The
wavelengths
of
red
light
are
longer
than
those
of
blue
light
C
Much
water
will
be
taken
in
by
the
swimmer
deep
in
the
water.
D.
You
will
see
a
monster
if
you
go
as
deep
as
6
to
9
meters
into
the
sea.
60.
The
best
title
of
this
passage
is
A.
The
Standard
of
Color
Underwater
B.
The
Direction
of
Light
Underwater
C.
The
Brightness
of
Color
Underwater
D.
The
Behavior
of
Light
Underwater2020—2021学年度第一学期
九年级英语单元检测题(七)听力材料
题,选择符合题意的图画回答问题
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九年级英语单元检測题(七)听力材料第
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九年级英语单元检測题(七)听
2020—2021学年度第一学期
九年级英语单元检测题(七)参考答
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回答问题(本题有5小题,每小题
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九年级英语单元检测题(七)参考答案第
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九年级英语单元检测题(七)参考答案第
