【正文】
le: telephone Example: alarm clock 1 1 2 2 3 3 4 4 5 5 3a A: What do you think is the most helpful invention? B: I think the most helpful invention is the light bulb. A: Why is that? B: Well, it gives people more time to work and play every day. PAIRWORK 3b Can the five inventions you choose help you on the island? A: I’d like to have a radio because I could listen to music all day. B: Yes, but that’s not going to help you leave the island. I think it would be better to have … 4 Grammar Focus The passive voice 被動語態(tài) 在被動語態(tài)的句子中 , 謂語部分的結(jié)構(gòu)是 be + 過去分詞。被動語態(tài)的句子的時態(tài)、人稱變化反映在 be動詞上。 一般現(xiàn)在時 am / is / are + 過去分詞 一般過去時 was / were + 過去分詞 含有情態(tài)動詞的被動語態(tài):情態(tài)動詞+ be +過去分詞