阅读下面的短文，判断下列句子是否与短文内容相符，符合的写（A），不符合的写（B）。
All living things on the earth need other living things to live with. Nothing lives alone. Sometimes one living thing kills another to live, so they form a food chain.
Plants make food from sunlight, water, air and so on while some animals on(以……为食) plants directly. For example, locusts(蝗虫) are small insects. Millions and millions of locusts in a group can eat anything that is green, including a lot of food that people need. In India, locusts have ever destroyed(破坏) many fields of crops. However, locusts can be food for birds, chickens, ducks or other living things, even humans.
Humans are at the top of the food chain, they eat not only locusts, but also birds, chickens, ducks or many other plants and animals. They are members of many food chains, but they often break up the food chains.
Each form of life is linked(和……有联系) to all the others. Breaking the links puts all lives in danger. Humans should share the world with other living things in peace.
11. No living things can live alone.
12. Some animals eat plants directly to live.
13. Locusts don’t eat food that people need.
14. Humans hardly ever break up the food chains.
15. It’s dangerous for humans to break up the food chains.
本文是一篇说明文，介绍了保持大自然食物链完整的重要意义。
【解析】题意：没有生物能单独生存。根据原文All living things on the earth need other living things to live with. Nothing lives alone可知，地球上的生物都是相伴共生的，没有生物能独自生存。该小题说法正确，故选A。
【解析】题意：有些动物通过直接进食植物来生存。根据原文Plants make food from sunlight, water, air and so on while some animals on(以……为食) plants directly可知，有些动物通过直接进食植物来生存。该小题说法正确，故选A。
【解析】题意：蝗虫不吃人们所需食物。根据原文Millions and millions of locusts in a group can eat anything that is green, including a lot of food that people need可知，蝗虫会吃掉人们所需食物。该小题说法错误，故选B。
【解析】题意：人类几乎从不打破食物链。根据原文Humans are at the top of the food chain, ... They are members of many food chains, but they often break up the food chains可知，人类经常会打破食物链。该小题说法错误，故选B。
【解析】题意：打破食物链对人类来说是件很危险的事。根据原文Each form of life is linked(和……有联系) to all the others. Breaking the links puts all lives in danger可知，打破食物链对人类来说是件很危险的事。该小题说法正确，故选A。