unit 1 will people have robots?
1. fewer people 更少的人
2. less free time 更少的空闲时间
3. in ten years XX年后
4. fall in love with… 爱上…
5. live alone单独居住
6. feel lonely感到孤独
7. keep/feed a pet pig
养一头宠物猪
8. fly to the moon飞上月球
9. hundreds of +复数 数百/几百
(概数,类似还有thousands of; millions of)
10. the same as 和……相同
11. a be different from b a与b不同
12. wake up 醒来
13. wake sb. up表示 “唤醒某人”
14. get bored变得厌倦
15. go skating去滑冰
16. lot