-协调
Unit1
攻势已经持续了三天，但是我们并
没有取得多少进展。师长（
division
command
er
）命令我们营（
battalion
）夜晚绕道敌人后方发起突然袭击。然而，
要绕到敌人后方，
我们必须越过一片沼泽地
（
marshland
）
。
我们很多人担心会陷
入泥
潭之中。
我们营长决定冒一下险。
所幸由于寒冷天气沼泽地都结
上了冰，
我
们于天亮前到达目的地并从敌人后方发起进攻。
这一下扭转了战局。
敌人没有戒
备，不久便
投降了。
Launch
turn the tide offensive take a gamble
catch off
guard
get bogged down Thanks to
instruct
The offensive
had
already lasted
three
days, but we
had not gained much
ground.
The
division
commander
instructed
our
battalion
to
get
around
the
rear
of
the
enemy
and
launch
a
surprise
attack.
To
do
so,
however,
we
had
to cross a marshland and
many of us were afraid we might get bogged down
in
the
mud.
Our
battalion
commander
decided
to
take
a
gamble.
By
a
stroke
of
luck,
thanks
to
the
cold
weather
which
made
the
marshland
freeze
over,
we arrived at our
destination before dawn and began attacking the
enemy
from the rear. This turned the
tide of the battle .The enemy, caught off
guard, soon surrendered.
Unit
2
汽车自从发明以来
使交通运输发生了革命性的变化，永远地改变了人们
的生活、
旅
行和办事的方式。
但另一方面，
也带来了危害，
尤其是公路死亡事故。
然而，
现今由于计算机技术和电子传感器的使用，
有可能消除发生的大多数交通
事故。
例如，
装在你汽车上的电子传感器能检测到空
气中的酒精雾汽并拒绝启动
引擎。
同样，
传感器还能通过接受在轨道上运行的卫星发出的信号检测路况并大
大减少你陷入交通拥
堵的可能性。
Send
out detect eliminate hazard
vapor
get
stuck
in signal
orbit
Satellite mount
in the air start up application
Automobiles
have,
since
their
invention,
revolutionized
transportation, changing forever the
way people live, travel, and do
business.
On
the
other
hand,
they
have
brought
hazards,
especially
highway
fatalities. However,
today the application of computer technology and
electronic
sensors
in
designing
and
manufacturing
cars
makes
it
possible
to eliminate most of traffic accidents.
For example, electronic sensors
mounted
in
your
car
can
detect
alcohol
vapor
in
the
air
and
refuse
to
start
up the engine. They can also monitor
road conditions by receiving radio
signals
sent
out
from
orbiting
satellites
and
greatly
reduce
your
chance
of
getting stuck in traffic jam.
Unit4