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人教2003课标版《Warming up、Pre-reading、Reading、Comprehending》公开课PPT课件优质课下载
discovered
Benjamin Franklin
lightning is electricity.
discovered
radium
Madame Curie
discovered
Zhang Heng
the seismograph
['saizm?grɑ:f] 地动仪
invented
Columbus
the New Continent
It’s ___________
a discovery.
Mar.15 , 1493
Please tell whether the following
are discoveries or inventions.
An amphibious car
It’s ________
an invention.
水陆两用汽车
Stephenson’s “Rocket”
It’s ________
an invention.