wool是什么意思我的老师的英语演讲稿

2021年1月27日发(作者：宵夜英文)
我的老师的英语演讲稿

ladies and gentlemen,
i have had a lot of teachers in my school who have given
me much help in my study. for their help i will never forget
them. but today i am going to talk about a special teacher of
mine.
this
teacher
is
not
a
human
being
and
its
name
is“computer”.
it
has
been
teaching
me
a
lot
of
knowledge
and
i appreciate it very much.
with the development of modern science and technology,
computers are widely used in every teritories (1) including
education.
how
can
a
computer
be
my
teacherhow
does
a
computer
teach
memultimedia(
多媒体
)helps
a
lot
in
this
aspect
in
recent
years, and computer-based training (cbt) has become a popular
educational
medium
(
手段
).
even
before
the
multimedia
come
(2)
up,
many
different
learning
systems
appeared,
using
the
components
and
techniques
we
now
associate
with
the
term
“
multimedia
”
. multimedia components, such as graphics (
动
画
) , animations , sound and video, make the learning process
easier
through
visualization.
animations
can
present
many
complex subjects dynamically, but human teachers can not do
this on blackboards.
multimedia
makes
our
study
more
lively
and
interesting.
for
example,
a
cd-
rom
disk
named
“encarta
encyclopedia”
contains
650 mb
information
including
images,
graphics,
music
clips,
video
clips,
animations
,
texts,
hotwords,
and
database
search
functions.
fields
involved
includes
physical
sciences,
performance arts, social
sciences, politics, military, education and so on. when
pressing a button, i can hear american president clinton's
speech
clip.
i
may
enjoy
playing
all
kinds
of
musical
instruments
in
the world. i
can
also see the
animation of
many
physical phenomena. this makes
physical concept to be understood deeply (3). the audio
features of
multimedia
can
greatly
help
me
learning
(4)
foreign
languages. with its speech output capabilities, i'm no longer
dependent on an instructor for proper pronunciation.