题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The production of coffee beans is a huge, profitable business, but, unfortunately, full-sun production is taking over the industry and bringing about a lot of damage. The change 1. coffee is grown from shade-grown production to full-sun production endangers the very 2. (exist) of certain animals and birds, and even disturbs the world’s ecological balance.

On a local level, the damage 3. (cause) by full-sun fields affects the area’s birds and animals. The shade of the forest trees provides a habitat 4. birds and other species that depend on the trees’ flowers and fruits. Full-sun coffee growers destroy this forest home. As a result, many species are 5. (quick) dying out. On a more global level, the destruction of the rainforest for full-sun coffee fields also threatens human life.

Medical research often makes use of the forests’ plant and animal life, 6. the destruction of such species prevents researchers from finding cures for certain diseases. In addition, new coffee-growing techniques are poisoning the local water and 7. (poison) the world’s groundwater in the future.

The loss of shade trees is gradually causing 8. slight change in the world’s climate, and studies show that loss of oxygen-giving trees also leads to air pollution and global warming.

It is obvious that 9. (grow) much full-sun coffee affects many aspects of life, from the local environment to the global ecology. But consumers do have a choice. They can purchase shade-grown coffee whenever possible, although at a higher cost. The future health of the planet and mankind 10. (be) surely worth more than an inexpensive cup of coffee.