There are robots all around us.Some do very difficult as lik
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There are robots all around us.Some do very difficult as likeflying airplanes and driving subway trains.And some do simple jobs.
When an automatic(自动的)washing machine goes in,water goes in.The machine waits until the water is hot before washing the clothes.It does this
by“feedback(反馈)”.Information about what’s
happening is “feedback” into the robot to tell it 4 next.
Our eyes,ears and other senses (感官) are our feedback.They tell us 5 around us.So robots are like
people in 6 ways.They work and they have
feedback.
But 7 robots look like people
Many are hidden away.Robots
control (控制) the
temperature of our houses,our cookers
and our hot water systems.We can set
the controls to the temperature we want.The robot does 8 .Its feedback usually comes from a thermostat (自动调温器).
One kind of thermostat
is a strip(条带)of metal(金属),which bends when it gets
hot.At the right temperature,it bends just enough 9 a switch.This turns off the heat.As the air around it
gets 10 ,the metal gets straight,and this turns the heat
on again.
3.A.after
B.before
C.as soon
as
D.while
4.A.how
to do B what to
do
C.what to do
it D. to do what
5.A.what
will
happen
B. what’s
happening
C.to happen
what
D.something will
happen
6.A.some
B.any
C.two
D.three
7.A.many
B.a lot
of
C.very
few
D.a little
8.A.something
B.something
other things
C.half the
work
D.the rest
9.A.to
work B
working
C.to
working
D.works
10.A.cold
B.hot
C.coo1 D.warm
When an automatic(自动的)washing machine goes in,water goes in.The machine waits until the water is hot before washing the clothes.It does this
by“feedback(反馈)”.Information about what’s
happening is “feedback” into the robot to tell it 4 next.
Our eyes,ears and other senses (感官) are our feedback.They tell us 5 around us.So robots are like
people in 6 ways.They work and they have
feedback.
But 7 robots look like people
Many are hidden away.Robots
control (控制) the
temperature of our houses,our cookers
and our hot water systems.We can set
the controls to the temperature we want.The robot does 8 .Its feedback usually comes from a thermostat (自动调温器).
One kind of thermostat
is a strip(条带)of metal(金属),which bends when it gets
hot.At the right temperature,it bends just enough 9 a switch.This turns off the heat.As the air around it
gets 10 ,the metal gets straight,and this turns the heat
on again.
3.A.after
B.before
C.as soon
as
D.while
4.A.how
to do B what to
do
C.what to do
it D. to do what
5.A.what
will
happen
B. what’s
happening
C.to happen
what
D.something will
happen
6.A.some
B.any
C.two
D.three
7.A.many
B.a lot
of
C.very
few
D.a little
8.A.something
B.something
other things
C.half the
work
D.the rest
9.A.to
work B
working
C.to
working
D.works
10.A.cold
B.hot
C.coo1 D.warm
4.B what to do
5.B what 's happening
6.A some
7.C very few
8.D the rest
9.A to work
10.C cool
5.B what 's happening
6.A some
7.C very few
8.D the rest
9.A to work
10.C cool
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