Unit 6When was it invented?单元词句梳理Section B（3a-Self Check）必背单词 1.nearly adv.几乎必背短语 2._ 决定某事 _决定做某事3._=_想出（主意）4._别人的decide on sth.decide to do e up with think up/of someone elses 必背句子 5._ sometimes a few people may invent things which are nearty the same.这是因为有时一些人可能发明几乎一样的东西。This is because必背句子 6._on the inventor of certaininventions.决定某些发明的发明者通常是困难的。7.They _in the hallway.他们叫我们不要在过道里跑。It is often difficult to decide asked us not to run
