【正文】
Unit 5 Grammar I Who is she? A pop film star. What is she doing? She is smoking. She often smoked in the past, but now she doesn’t smoke any more. = She used to smoke. He used to smoke. Students used to study in low houses. He often smoked. The students often studied in low houses. But now he doesn’t smoke. But now they study in big rooms. Now she is quite slim now. She used to be very fat. She used to be a student. Now she isn’t a student, she is a teacher. The school _____________ a very small library, but now it has a large one. used to have There ____________ a small lake in front of the library, but now there isn’t. used to be We use the phrase ‘used to’ to talk about a past habit or state. We use an infinitive after ‘used to’. ‘used to’ 沒(méi)有人稱的變化,且只用于描述過(guò)去的狀態(tài)。 1. Dr Ma used to work in a hospital in Beijing. 3. Dr Ma used to operate on two or three patients a day. 2. Dr Ma used to live in a big flat. 4. Dr M