Unit 4 Then and now
人教版 PEP · 知识点辅导
今昔对比一、重点单词
过去与现在
before/bɪˈfɔː/adv. 以前
I was short before.
我以前矮。
now/naʊ/adv. 现在
I am tall now.
我现在高。
was/wɒz/v. 是（过去）is/am 的过去式
I was short.
我以前矮。
were/wɜː/v. 是（过去）are 的过去式
They were young.
他们以前年轻。
could/kʊd/modal. 能（过去）can 的过去式
I could swim.
我以前会游泳。
cycling/ˈsaɪklɪŋ/n. 骑自行车
Go cycling.
骑车。
ice skate/aɪs skeɪt/v. 滑冰
I love to ice skate.
我喜欢滑冰。
三、重点短语
| 短语 | 中文 | 例句 |
|---|---|---|
| before | 以前 | I was short before. |
| now | 现在 | I am tall now. |
| go cycling | 骑车 | I go cycling every day. |
| play badminton | 打羽毛球 | I play badminton. |
四、核心句型
| 句型 | 中文 | 用法 |
|---|---|---|
| Before, I was short. Now I am tall. | 以前我矮，现在我高。 | 今昔对比 |
| Before, I couldn't swim. Now I can. | 以前我不会游泳，现在会了。 | couldn't |
| Before, he didn't wear glasses. | 以前他不戴眼镜。 | 否定过去 |
| That's good exercise. | 那是很好的锻炼。 | 表达 |
五、语法精讲
Then and now（今昔对比）
be 动词过去式：I was... You/They were...
could：can 的过去式。I could... / I couldn't...
对比结构：Before, I was... Now, I am... Before, I couldn't... Now, I can...
六、课文对话
Binbin
Come and look at my old photos!
来看我的老照片！
Jiajia
Wow! You were short!
哇！你以前好矮！
Binbin
Yes. Before, I was short. Now I am tall.
对，以前矮，现在高了。
Jiajia
Could you ride a bike before?
你以前会骑车吗？
Binbin
No, I couldn't. Now I go cycling every day.
不会，现在我每天骑车。
Jiajia
That's good exercise.
那是很好的锻炼。
Binbin
Before, I didn't like sports. Now I love sports.
以前我不喜欢运动，现在喜欢。
Jiajia
You changed a lot!
你变化好大！
七、易错点
易错： was 用于 I/he/she/it；were 用于 you/we/they。
易错： couldn't = could not，后面加动词原形。
学会了就试一试
这一课，我会用了
学习目标：能用 Before... Now... 对比过去和现在，并区分 could 与 can。
自己说一说
设想一个虚构人物的成长变化：用 Before, I was... Now I am... 或 Before, I couldn't... Now I can... 说两句；无需分享真实旧照片。
答对至少三题，再完成“自己说一说”。
过几天再想一想
- 明天：不看页面，分别用 was 和 am 说出过去与现在。
- 三天后：换一个虚构人物，用 couldn't 和 can 对比一项能力。