2021初中3分钟励志英语演讲范本
20XX初中3分钟励志英语演讲范本 本文关键词：励志，初中，英语演讲，XX，范本
20XX初中3分钟励志英语演讲范本 本文简介：20XX初中3分钟励志英语演讲范本Asyouslowlyopenyoureyes,lookaround,noticewherethelightesintoyourroom;listencarefully,seeiftherearenewsoundsyoucanrecognize;feelwithyo
20XX初中3分钟励志英语演讲范本 本文内容：
20XX初中3分钟励志英语演讲范本
As
you
slowly
open
your
eyes,look
around,notice
where
the
light
es
into
your
room;
listen
carefully,see
if
there
are
new
sounds
you
can
recognize;
feel
with
your
body
and
spirit,and
see
if
you
can
sense
the
freshness
in
the
air.
Yes,yes,yes,it’s
a
new
day,it’s
a
different
day,and
it’s
a
bright
day!
And
most
importantly,it
is
a
new
beginning
for
your
life,a
beginning
where
you
are
going
to
make
new
desicisions,take
new
actions,make
new
friends,and
take
your
life
to
a
totally
unprecedented
level!
You
know
all
this
is
real
as
long
as
you
are
confident,passionate
and
mitted!
And
you
are
confident,you
are
passionate,you
are
mitted!
You
will
no
longer
fear
making
new
sounds,showing
new
facial
expressions,using
your
body
in
new
ways,approaching
new
people,and
asking
new
questions.
You
will
live
every
single
day
of
your
life
with
absolute
passion,and
you
will
show
your
passion
through
the
words
you
speak
and
the
actions
you
take.
You
will
focus
all
your
time
and
effort
on
the
most
important
goals
of
your
life.
You
will
never
succumb
to
challenges
of
hardships.
You
will
never
waver
in
your
pursuit
of
excellence.
After
all,you
are
the
best,and
you
deserve
the
best!
As
your
coach
and
friend,I
can
assure
you
the
door
to
all
the
best
things
in
the
world
will
open
to
you,but
the
key
to
that
door
is
in
your
hand.
You
must
do
your
part,you
must
faithfully
follow
the
plans
you
make
and
take
the
actions
you
plan,you
must
never
quit,you
must
never
fear.
I
know
you
must
do
it,you
can
do
it,you
will
do
it,and
you
will
succeed!
Now
stand
firm
and
tall,make
a
fist,get
excited,and
yell
it
out:
I
must
do
it!
I
can
do
it!
I
will
do
it!
I
will
succeed!
I
must
do
it!
I
can
do
it!
I
will
do
it!
I
will
succeed!
I
must
do
it!
I
can
do
it!
I
will
do
it!
I
will
succeed!
篇2：新概念英语一总结练习七被动语态
新概念英语一总结练习七被动语态 本文关键词：语态，新概念英语，被动
新概念英语一总结练习七被动语态 本文简介：新概念英语一总结练习七被动语态【复习】一、总述：英语动词有两种语态，即主动语态（TheActiveVoice)和被动语态（ThePassiveVoice).主动语态表示主语是动作的执行者。被动语态表示主语是动作的承受者。Theywillbuildanewbridgeovertheriver.(主动)
新概念英语一总结练习七被动语态 本文内容：
新概念英语一总结练习七
被动语态
【复习】
一、总述：
英语动词有两种语态，即主动语态（The
Active
Voice)和被动语态（The
Passive
Voice).主动语态表示主语是动作的执行者。被动语态表示主语是动作的承受者。
They
will
build
a
new
bridge
over
the
river.
(主动)
A
new
bridge
will
be
built
over
the
river.
(被动)
汉语中常用“被”、“给”、“由”、“受”等词用来表示被动，而英语用：
助动词be
+
及物动词的过去分词构成。
二、被动语态的形式
1)
常用时态的被动语态的构成：
被动语态的基本形式为助动词be
+
及物动词的过去分词，即be
done。
被动语态的时态、人称和数的变化主要体现在be的变化上，其形式与系动词be的变化形式完全一样。以give
为例，列表如下：
一般现在时：am
/
is
/
are
+
given
一般过去时：was
/
were
+given
一般将来时：shall
/
will
+be+
given
过去进行时：was
/
were
+
being
+
given
现在进行时：am
/
is
/
are
+
being
+
given
过去完成时：had
+
been
+
given
现在完成时：have
/
has
+
been
+
given
将来完成时：shall
/
will
+
have
been
+
given
过去将来时：
should
/
would
+be+
given
现在完成进行时：have/has
been
being
done
含情态动词的被动语态：情态动词＋be
done
［注］被动语态没有将来进行时和过去将来进行时。
2）被动语态的否定式:在第一个助动词后加not构成。
Russian
is
not
taught
in
our
school.
我们学校不教俄语。
3）被动语态的疑问式：把第一个助动词提到主语之前,句尾加问号构成。
Were
many
trees
planted
on
the
hill
yesterday
昨天山上种了许多树吗？
How
much
money
was
stolen
in
all
一共被偷了多少钱？
三、被动语态使用范围
谁做的动作不知道，说出谁做的没必要。
动作承受者需强调，用被动语态莫忘了。
1.
Some
stamps
were
stolen
last
week.
2.
The
PRC
was
founded
on
October
1,1949.
3.
Football
is
played
in
most
middle
schools.
四、主动语态与被动语态的转换
1．主语+谓语+宾语
练习：将下列各句改为被动语态。
He
plants
trees
in
spring.
Tom
will
clean
the
room
tomorrow.
They
make
shoes
in
that
factory.
They
bought
ten
computers
last
term．
Amy
can
take
good
care
of
Gina
．
We
are
painting
the
rooms.
The
workers
told
me
they
would
mend
the
car
as
soon
as
possible.
They
will
send
cars
abroad
by
sea.
Someone
has
told
me
the
sports
meeting
might
be
put
off.
When
I
got
to
the
theatre,I
found
they
had
already
sold
out
the
tickets.
主动语态变被动语态口诀：
宾语提前主语变，
原主变宾by后见，
时态人称be关键。
注意：把主动语态变为被动语态时，其谓语动词的时态要与原句时态保持一致，其谓语动词的数要与新主语保持一致。
We
have
bought
a
new
computer.
A
new
computer
______
been
bought.
2.
主语+谓语+间接宾语（sb.）+直接宾语（sth.）
My
uncle
gave
me
a
present
on
my
birthday.
I
was
given
a
present
on
my
birthday.
A
present
was
given
to
me
yesterday.
注意：一般在下列动词后，常在间接宾语前用介词
to，如：
bring,give,hand,lend,offer,pass,pay,promise,sell,show,take,teach,tell
等。
一般在下列动词后，间接宾语前用介词
for,如：build,buy,cook,cut,choose,do,fetch,find,fix,get,keep,make,order,paint,play,sing
等。
练习1：将下列句子变为被动语态。
The
foreign
friends
gave
us
some
wonderful
stamps.
My
uncle
gave
me
a
present
on
my
birthday.
练习2：在横线上填for
或者to.
1）
Mother
made
me
a
new
skirt.
(A
new
skirt
was
made
_____
me.
)
2)
The
meat
was
cooked
______us.
3)
My
bike
was
lent
____
her.
4)
Some
country
music
was
played
_____
us.
5)
The
cup
with
mixture
was
showed
______
the
class.
注意：有些既不用to
也不用for,根据动词与介词的搭配关系。
He
asked
me
a
question.
(A
question
was
asked
of
me.
)
People
all
over
the
world
know
the
Great
Wall.
The
Great
Wall
is
known
to
people
all
over
the
world.
(不用by短语)
3.
主语+谓语+宾语+宾语补足语
带复合宾语(宾语+
宾补)的动词改为被动语态时，一般把主动结构中的宾语改为主语，而宾语补足语保留在谓语动词后面。如：
We
always
keep
the
classroom
clean.
→The
classroom
is
always
kept
clean.
She
told
us
to
follow
her
instructions.
→We
were
told
to
follow
her
instructions.
注意：在see,watch,hear,notice,listen
to,look
at,make,feel等动词后作宾语补足语的动词不定式都不带
to，但改成被动语态后都带to，这时不定式为主语补足语，也就是说不定式作主语补足语不存在省略to
的问题。
We
often
hear
him
play
the
guitar.
→He
is
often
heard
to
play
the
guitar.
注意：带有复合宾语的句子，如果宾语补足语是名词，变被动句时，应将宾语变为主语，不要误把宾语补足语的名词作主语。如：
Tomatoes
were
first
taken
back
to
Europe
and
people
called
them
love
apples.
误：Love
apples
were
called
them.
正：They
were
called
love
apples.
五、下列情况主动句不能改为被动句：
第一，感官系动词一般用主动形式表示被动意义，如：feel，look,seem,taste,sound,remain等。
—
Do
you
like
the
material?
—
Yes,it
feels
very
soft.
误：It
is
felt
very
soft.
The
food
tastes
delicious.
误：The
food
is
tasted
delicious.
The
pop
music
sounds
beautiful.
误：The
pop
music
is
sounded
beautiful.
第二，谓语是及物动词leave,enter,reach,suit,have,benefit,lack,own等。如：
He
entered
the
room
and
got
his
book.
误：The
room
was
entered
and
his
book
was
got.
She
had
her
hand
burned.
误：Her
hand
was
had
burned.
第三，不及物动词没有被动语态，如：rise,happen,succeed,remain,lie等。
When
we
got
to
the
top
of
the
mountain,the
sun
had
already
risen.
误：The
sun
had
already
been
risen.
After
the
earthquake,few
houses
remained.
误：After
the
earthquake,few
houses
were
remained.
第四，一些不及物动词短语没有被动语态，如：take
place,break
out,belong
to,lose
heart,consist
of,add
up
to等。如：
The
fire
broke
out
in
the
capital
building.
误：The
fire
was
broke
out
in
the
capital
building.
第五，宾语是反身代词，相互代词，同源宾语，不定式，v-ing形式及抽象名词等，不能变为被动句子的主语，如：
I
taught
myself
English.
误：Myself
was
taught
English.
We
love
each
other.
误：Each
other
is
loved.
第六、有些动词既是及物又是不及物，当它们和well,badly,easily等副词连用时，表示主语内在品质或性能，是不及物动词，用主动表示被动，这时不用被动语态，常见的有：write,read,clean,sell,wash,cook
等。如：
The
cloth
washes
easily.
这布很好洗。
The
new
product
sells
well.
这新产品很畅销。
The
pen
writes
smoothly.
这支笔写字很流畅。
对比：
The
books
sell
well.
(主动句)
The
books
were
sold
out.
(被动句)
The
meat
didn’t
cook
well.
(主动句)
The
meat
was
cooked
for
a
long
time
over
low
heat.
(被动句)
六、特殊句式
在汉语中，有一类句子不出现主语，在英语中一般可用被动结构来表示，例如：
据说……It
is
said
that
…
据报导……It
is
reported
that
…
据推测……It
is
supposed
that
…
希望……It
is
hoped
that
…
众所周知……It
is
well
known
that
…
普遍认为……It
is
generally
considered
that
…
有人建议……It
is
suggested
that
…
【练习】
(
)1
The
People
s
Republic
of
China
___
on
October
1,1949.
A.
found
B.
was
founded
C.
is
founded
D.
was
found
(
)
2
English
____
in
Canada.
A.
speaks
B.
are
spoken
C.
is
speaking
D.
is
spoken
(
)3
This
English
song___
by
the
girls
after
class.
A.
often
sings
B.
often
sang
C.
is
often
sang
D.
is
often
sung
(
)4
This
kind
of
car
___
in
Japan.
A,makes
B.
made
C.
is
making
D.
is
made
(
)5
New
computers
___
all
over
the
world.
A.
is
used
B.
are
using
C.
are
used
D.
have
used
(
)6
Our
room
must
___
clean.
A.
keep
B.
be
kept
C.
to
be
kept
D.
to
keep
(
)7
-I
d
like
to
buy
that
coat.
-I
m
sorry.
___.
A.
it
sold
B.
it
s
selling
C.
It
s
been
sold
D.
it
had
been
sold
(
)8A
new
house
___
at
the
corner
of
the
road.
A.
is
building
B.
is
being
built
C.
been
built
D.
be
building
(
)9
The
key
___
on
the
table
when
I
leave.
A.
was
left
B.
will
be
left
C.
is
left
D.
has
been
left
(
)10
Doctors
___
in
every
part
of
the
world.
A.
need
B.
are
needing
C.
are
needed
D.
will
need
(
)11
His
new
book___
next
month.
A.
will
be
published
B.
is
publishing
C.
is
being
published
D.
has
been
published
(
)12
Japanese
___
in
every
country.
A.
is
not
spoken
B.
are
spoken
C.
is
speaking
D.
is
not
speaking
(
)
13
These
papers
___
yet.
A.
have
not
written
B.
have
not
been
written
C.
has
not
written
D.
has
not
been
written
(
)14
The
sports
meet
___
be
held
until
next
week.
A.
didn
t
B.
won
t
C.
isn
t
D.
doesn
t
(
)15
-My
shoes
are
worn
out.
A.
Can
t
they
be
mended?
B.
Let
me
have
a
look
at
it.
C.
How
much
do
they
cost?
D.
Can
t
they
mended?
(
)
16
___
the
watch
been
repaired
yet?
I
badly
need
it.
A.
Does
B.
Has
C.
Is
D.
Are
(
)
17___
these
desks
be
needed?
A.
Will
B.
Are
C.
Has
D.
Do
(
)
18
Why
___
to
talk
about
it
yesterday?
A.
didn
t
a
meeting
hold
B.
wasn
t
a
meeting
held
C.
wasn
t
held
a
meeting
D.
a
meeting
wasn
t
held
(
)
19
Who
was
the
book___?
A.
write
B.
wrote
C.
written
D.
written
by
(
)
20
Where
___
these
boxes
A.
was
B.
were
C.
is
D.
am
(
)21
The
flowers
___often.
A.
must
be
water
B.
must
be
watered
C.
must
watered
D.
must
water
(
)
22
The
books
may___
for
two
weeks.
A.
be
kept
B.
be
borrowed
C.
keep
D.
borrow
(
)
23
The
broken
bike____
here
by
Mr.
Smith.
A.
can
mend
B.
can
mended
C.
can
be
mend
D.
can
be
mended
(
)
24
The
old
bridge
in
my
hometown___
next
month.
A.
is
going
to
be
rebuilt
B.
will
rebuilt
C.
are
going
to
be
rebuilt
D.
are
going
to
rebuilt
(
)25
The
play
___
at
the
theatre
next
Sunday.
A.
is
going
to
be
shown
B.
will
shown
C.
will
show
D.
is
shown
(
)
26
The
old
stone
bridge
___
next
week.
A.
is
going
to
be
rebuilt
B.
will
be
rebuild
C.
are
going
to
be
rebuilt
D.
will
rebuild
(
)27Now
these
magazines___
in
the
library
for
a
long
time.
A.
have
kept
B.
are
keeping
C.
have
been
keeping
D.
have
been
kept
(
)28The
pot
___
for
___
hot
water.
A.
used;
keeping
B.
was
used;
keeping
C.
is
used;
to
keep
D.
are
used;
keep
(
)29Tea
___
in
the
south
of
China.
A.
grows
B.
is
grown
C.
were
grown
D.
will
grow
(
)30
The
bridges___
two
years
ago.
A.
is
built
B.
built
C.
were
built
D.
was
built
【Key】
1---5
BDDDC
6—10
BCBBC
11---15AABBA
16--20BABDB
21---25BADAA
26---30ADBBC
6
篇3：通信工程专业英语翻译
通信工程专业英语翻译 本文关键词：通信工程，英语翻译，专业
通信工程专业英语翻译 本文简介：FibertotheHome(光纤到家)光纤到家（FTTH）是一个住宅的通信基础设施，光纤电缆运行所有的方式向用户。经过多年的期待，各种部署光纤到户是最后出现在美国各地的社区虽然光纤到户是一种技术，它为本地接入市场的竞争动态有趣的影响。光纤到户网络可以提供的带宽比目前现有的宽带技术的许多倍。今天似乎
通信工程专业英语翻译 本文内容：
Fiber
to
the
Home(光纤到家)
光纤到家（FTTH）是一个住宅的通信基础设施，光纤电缆运行所有的方式向用户。经过多年的期待，各种部署光纤到户是最后出现在美国各地的社区虽然光纤到户是一种技术，它为本地接入市场的竞争动态有趣的影响。光纤到户网络可以提供的带宽比目前现有的宽带技术的许多倍。今天似乎每个人都想要的高速数据，可靠的语音服务，高质量的视频。无论这些服务是由数字用户线（DSL）交付，电缆调制解调器或无线架构是微不足道的，只要服务是快速和可靠的。
FTTH使运营商能够提供多种通信和娱乐服务，包括高速互联网接入，广播，有线电视，直播卫星（DBS）电视，互动的双向视频服务。此外，一个FTTH解决方案基于波分复用（WDM），允许更多的灵活性和适应性，进一步支持服务。
进一步支持服务的适应性。在FTTH系统，在前端设备或是连接到公共交换电话网络（PSTN）唱DS-1和连接到ATM、以太网接口。视频服务从有线电视（CATV）进入系统的头端或来至卫星饲料。
所有这些信号，然后合并成采用WDM技术单光纤传输通过无源光分路器的最终用户。分路器通常放在离中心局（CO）约3000英尺。分流比的范围可以从2到32的用户并没有在网络中使用任何活性成分。然后将信号送到3个000英尺的家在一个单一的纤维。一个理想的FTTH系统必须提供的所有服务用户的能力支付，如电路交换电话，视频服务、高速数据广播。
在家里，光信号转换成电信号的光电转换器（OEC）。OEC把信号分成由最终用户所需的服务。理想情况下，其将有标准的用户界面，提供所需的服务不集LLD盒。这些接口包括电话RJ11插孔，RJ45接口的高速数据，和75欧姆同轴电缆端口的有线电视和卫星直播业务。
有关联的FTTH的几个优点，如下：
这是一个被动网络，因此从有限无活性成分对最终用户这大大减少网络维护的成本和需求以及消除直流电源网络的需要。
它是一个单一的光纤到终端用户，提供各种服务与行业标准的用户界面，包括语音，高速数据，模拟或数字有线电视，星展，ANL视频。
FTTH以当地备用电池和低功率消耗。
FTTH是可靠的，可扩展的，安全的。
FTTH网络是一个夹具的证据体系。
为最终用户提供这些服务的最终解决方案。双绞线,同轴电缆一种混合光纤／同轴（HFC）网络不健全或未来作为FTTH架构和持续建筑.成本光学设备，光纤到户是越来越来越可行。
双向的请求，基于视频的服务如互动电视，远程学习，运动图像质量的视频会议和可视电话将继续增加。事实上，一些观察家认为，已经为这些未来服务的全球需求的今天。能够满足这一需求，不断增加新的服务，在鼠标点击的速度是建立在通信领域的巨大竞争。
这种能力也提供了巨大的潜力。谁能给一个不断增长的客户群可以双重甚至三重他们的收入在短时间。
作为一个结果，光纤技术如FTTH的需求正在增长。在WDM领域技术的进步将进一步完善和提升技术，使更多的运营商来证明对FTTH的投资。
Technologies
on
Fourth-Generation
Mobile
Communication（第四代移动通信技术）
第四代移动通信是一个混合的概念和技术在制造。一些可以被确认为来自3G，和被称为进化（WCDMA和CDMA2000的演进，如）而其他涉及新的接近无线移动，有时标记的革命。什么是重要的，虽然，是超越3G技术在走向无线世界基本关联的共识，由者介绍的一个术语，这些术语意指从根本上更好的无线移动通信的未来。
第四代移动通信包括频谱的分配和利用，创新的无线通信，网络的概念和技术，服务和应用程序。这四大领域是交织在一起的，和创新不可避免地要求别人改变。在所有的情况下，正是这些相互作用的方法，技术，和服务/应用程序与市场，用户的需求和请求；，甚至未知的未来用途，可以驱动一个重大的技术革命运动提供了潜在的，或非常迅速而深刻的变化。这是我们的信念，在这一过程的开始，这对21世纪第一个十年的其余部分将提供基础的无线在未来有用的和无处不在的计算机今天。这四大领域提供创新来驱动的过程。
频谱分配和利用是在自适应频谱和带宽分配的一个可能的范式变化的研究开始起步，为的是在动态频谱资源的利用研究。在频谱资源分配，分配的想法，或者用一种方式，不是固定的是调查在欧洲，亚洲，和美国，并开始被视为受到监管机构的可能性。谱是非常珍贵的资源我们没有尽我们所能。在理解和使用频谱需求的进步，随着身体，MAG的链接，和网络层的方法来优化使用的频谱，也包括处理资源的控制，能够提供正确的服务和服务质量。监管制度的变化也将是必要的。
无线电通信技术创新将真正成为任何重大改变发动机。这能力提供大量的数据传输速率，高达100
MB或1
Gb，已经提到。这在很大程度上是由多个接入的能力决定的，调制和编码，以及无线资源技术来提供这些数据有效地在移动在无线环境中。要更高的速度意味着渠道是真正的宽带波形处理，因此必须考虑更多的可分辨但随机，多路径。改进的多址接入信道编码也需要。MC-CDMA
IL和OFDM进行调查作为改进的编码方案，以及各种多址调制和编码方案的多用户组合。还包括空分多址接入，智能天线和空时编码技术，。在所有的情况下，快速适应信道条件和交通条件的关键是提供必要的服务质量。
在无线接入领域的另外两个方面也很重要，如网络领域。一个是可重构的无线接入点和技术。那些需要的硬件和软件采用击败无线接入技术适合每一种情况下（即适应可用的频谱信道条件，和网络）。幸运的是，有软件可重构无线技术在调查中，和在某些情况下，在非常简陋的形式，部署。将需要更多的。但更多的可重构的收音机是必要的；也需要重构网络，由于不同的接入技术的融合将要求网络提供一些无线技术，实际上是一个适应的过程的一部分。网络的变化将在两个大的方面是明显的。
适应的过程。网络的变化将在两个大的方面是明显的。一是向更多的唱片几乎一定进化，或分组交换，方法，和从电路交换，甚至一个分组交换叠加在电路交换技术如3G。因此，对于突发式通信的快速采集和其他需要物理层技术将需要。还需要的是物理层和网络层技术实现所有LP网络的控制和优化，并在一个高度可变的无线和网络操作环境。另一个相关的方面，需要大的网络的变化，涉及到的各种技术和服务的融合，如WLAN和移动。这些努力为用户谁想要沟通的数据，语音，视频和其他应用程序和可能的各种服务，将有两个驱动融合以及新技术的需求。
最后将这些，可能还有其他的技术，能满足一个未来的无线市场，还要提供新的、有效的服务和应用的挑战，但不知道它想要什么，这将确定什么样的无线世界将像第四代移动通信的研究是一个重要的对新的词汇和术语。