1 . 阅读下列短文,根据短文内容填空。在未给提示词的空白处仅填写1个适当的单词,在给出提示词的空白处用括号内所给词的正确形式填空。
If you woke up 20 years from now in 2042, what would be different? Here are some ideas 1 (base) on numbers that don’t require crystal ball. About 70% of the world population is expected to live in urban areas by 2050. That means most cities are going to need more infrastructure. Roads, public transportation and waste management 2 (upgrade). And we’ll be older. We are likely to live until 82.4 years old, compared with the current life expectancy of 79.1 years. That’s a good thing 3 health care companies. But living three extra years is going to be more expensive, 4 will have implications for both working and saving.