【正文】
第 3課時(shí) (Section B) 單 詞 1. when, while 與 as 辨析 (1)when 既可以和延續(xù)性動(dòng)詞連用,也可以和短暫性 動(dòng)詞連用;而 while 和 as 只能和延續(xù)性動(dòng)詞連用。如: Sorry, I was out when you called me.(call 為短暫性動(dòng)詞 )對(duì)不 起,你打電話時(shí)我剛好外出了。 Strike while the iron is hot.(is 為延續(xù)性動(dòng)詞,表示一種持續(xù) 的狀態(tài) )趁熱打鐵。 The students took