【正确答案】 B

【答案解析】[听力原文] Professor Post is developing a way to grow meat in a lab because he believes that livestock farming is not good for the environment, not good for animals nor, he sags, is it going to satisfy the growing demand for meat. His aim is to produce a burger that looks and tastes just like the real thing but from what 1 saw at his lab, which is still a work in progress. The flesh, grown from stem cells, is pale white and tasteless, so food technologists have had to mix in breadcrumbs, caramel and saffron to add flavor and juice to add color. The mixture is then put together to make the burger that will be cooked then eaten by two food writers. Initial testing during the development process suggests that it won't taste great, but according to Professor Post, it will taste good enough. Why Professor Post is developing a way to grow meat in a lab? 新闻开头提到了Post教授存研发一种在实验室种植肉类的办法，随后给出了具体原因：he believes that livestock farming is not good for the environment, not good for animals nor, he says, is it going to satisfy the growing demand for meat. 即畜牧对环境和动物都不利，而且也无法满足日益增长的对肉类的需要。四个选项中，符合新闻原文的是B项，故选B。

【正确答案】 D

【答案解析】[听力原文] Why do the food technologists have to add juice to the grown meat? 本题考查食品技师必须往种植的肉里边添加果汁的原因。新闻中提到种植的肉颜色惨白而无味，随后紧接着说到so food technologists have had to mix in breadcrumbs, caramel and saffron to add flavor and juice to add color，所以，往种植的肉里添加果汁的原因是为了增加颜色，故选D。