2現在式和過去式的比較 (a-1) I am in class today. (a-2) I was in class yesterday. 直述句：(a-1) I am in class today.(a-2) I was in class yesterday.(b-1) Alice is at the library today.(b-2) Alice was at the libraryyesterday.(c-1) My friends are at hometoday.(c-2) My friends were at home
3BE動詞的過去簡單式 單數： I was you were (一個人) she was he was it was 複數： we were they were
4BE動詞的過去式 否定句 否定句： (a) I was not in class yesterday. (b) I wasn’t in class yesterday.(c) They were not at home last night.(d) They weren’t at home last night.
5BE動詞的過去式 疑問句 yes / no 問句： (a) Were you in class yesterday? Yes, I was. I was in class yesterday.No, I wasn’t. I wasn’t in class yesterday.(b) Was Alex at home last night?Yes, he was. He was at home last night.No, he wasn’t. He wasn’t at home last night.
6BE動詞的過去式 疑問句-2 訊息疑問句 (a) Where were you yesterday? I was in class yesterday.(b) Where was Jennifer last night?She was at home last night.
8Practice-1 用wasn’t 或weren’t以及表示過去時間的 語詞完成下列句子 Ken is here today, but he wasn’t here yesterday.I’m at home tonight, but __________________.You’re in class today, but _________________.Dr. Lee is in her office this afternoon, but _____.It’s cold this week, but ______________.Alex and Rita are at work this Friday, but _____.
9Practice-2 造疑問句並作簡答 ( you / in class / yesterday ) A: Were you in class yesterday?B: Yes, I was.( you / hungry / right now )A: ____________________B: No, ________, but I’m thirsty.3. ( Tony and Mark / at the party / last night )B: No, _________________
11Answers Practice-1: 2. but, I wasn’t at home yesterday. 3. but, you weren’t in class yesterday.4. but, she wasn’t in her office yesterdayafternoon.5. but, they weren’t at work last Friday.
12Answers Practice-2: ( you / hungry / right now ) A: Were you hungry right now?B: No, I wasn’t. I’m thirsty.3. ( Tony and Mark / at the party / last night )A: Were Tony and Mark at the party last night?B: No, they weren’t.
13Answers (1) 去年十月 last October (2) 有一天 one day (3) 上週末 last weekend Practice-3:(1) 去年十月 last October(2) 有一天 one day(3) 上週末 last weekend