Filtering sea water and bike scheme in China 过滤海水、中国自行车租赁计划
本集内容
New material could make sea water drinkable 新材料可过滤并净化海水
China’s bike hire schemes create fight for street space 中国自行车租赁计划引发街道空间之争
文字稿
Here in Manchester, graphene has been used to create a filter. The aim is to convert sea water into a form that’s drinkable. Drinking water will be scarce for 1.2 billion people by 2025.
The rapid success of China’s bike hire companies took everyone by surprise. As you can see, there are spaces in Beijing which are now totally crammed with bikes. The beauty of these is you scan them with your phone and then leave them wherever you like for the next person. Some of those complaining about the bikes want to park cars on the footpath.
1. Book-loving Marge lived in a small flat. She ______ thousands of them into just two rooms.
2. UK officials are concerned that healthy levels of vitamin D in the body cannot be maintained in winter through diet alone, when sunlight, which helps in vitamin D production, is ______.
答案
1. Book-loving Marge lived in a small flat. She crammed thousands of them into just two rooms.
2. UK officials are concerned that healthy levels of vitamin D in the body cannot be maintained in winter through diet alone, when sunlight, which helps in vitamin D production, is scarce.