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2.熟记不规则动词过去分词。
Translate the phrases.
spread to other countries
by accident
It is said …
over an open fire
fall into the water
take place
without doubt
流传到其它国家
偶然;意外地
据说…
在户外的火上
掉入水中;落入水中
发生;出现
毫无疑问;的确
Grammar Focus
When was the zipper invented?
It was invented in 1893.
Who was it invented by?
It was invented by Whitcomb Judson.
When was tea brought to Korea?
It was brought to Korea during the 6th and 7th centuries.
What is the hot ice-cream scoop used for?
It’s used for serving really cold ice-cream
Active Voice: Alexandar Graham Bell invented the telephone in 1876.
Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.
被动语态 (Passive Voice)
结构: be + V-p.p.
am / are / is +动词的过去分词