内容正文:
学到网 学科网原引精品,让你动学习土录起乘!
PxKcoM 学科同精品频遗全力推荐.
冲刺2023年中考英语首字母填空临考押题(上海专用)12
(一)
Scientists are looking for ways that wecan effectively use the light and heatfrom
the sun. One idea that has caught their imagination is solar roads. They are
e___1____toproduce clean and renewable energy
With solar panels(控制板)onthe surfaees,
Capping 「 solar roads cost more than traditional roads.
Miadeyr However, b 2- the functions of traditional
Basekyer 「 roods, they have the panels to receive sunlight and
_____________「changeit into the energy to supply power to homes,
factories and street lighting There are fourlayes in a solar panel:
·Base layer: It is made of insuation (绝缘)materialandforms a good grip with
the road below this layer.
·Middle layer: This is the most important layer. It holds all kinds of power lines
conmecting all the solar parts in the panel, likeLED lights and the heating system.
∙Top layer: This layer is super-strong glass. It a3 the panel to hold the
weight of the heaviest vehicles.
·Capping (盖子):This is the topmost layer used to offere 4 protection
to the solar parts in the panel The layer must be rough enough to provide the traction
for the safety of vehicles.
With the smart design, solar roads can successfully charge the vehieles on them.
And the roads have inbuilt LED lights to eplace the traditional rood signs and lines,
which are usually painted and h 5 to humans. What's more, the heating
systin th solarroads can take care of thesnow and ice on theroads for drivers.
Test solar roads have been built in several countries (France,China, USA,ete.)
since 2014.Thefistsolarroad project,Metrics of Watt Way in France, was set upby
aFrench company called Construction Colas. It was an e— of low
effectiveness. In the first year, it had been expected to produce around 767 kWh of
原创精品资源学科网独家享有服权,侵权必究!
学利四
学科网原纠精品,让你的学司土豪起桌!
JP.ZXXK.COM
学科网精品频道全力推荐
energy a day,but it only produced 409 kWh.Even so,the production could increase
with design impr