Unit 6When was it invented?
Section B 3a-Self Check
Key points(重点知识）
深受喜爱和充满活力运动 为了娱乐和锻炼超出；多于人们相信…在硬地板上把…分开阻止…做…不但…而且…钦佩；仰慕实现梦想勉励…做…梦想成为英雄…数量
a much-loved and active sport
for fun and exercise
over/more than
It is believed that/ people believe
on a hard floor
divide…into
stop…from doing
not only…but also..
look up to…
achieve the dreams
encourage …to do …
dream of becoming heroes
the number of…
Inventions are everywhere in our life