And finally, genetically modified trees might actually cause even more damage to the local wild trees. You see, genetically modified trees often grow more aggressively than natural trees do. And genetically modified trees are typically planted among natural trees. As a result, the genetically modified trees out compete the native trees for resources: sunlight, soil nutrition and water. Eventually, crowd out the nature trees.
最后,基因改良树木可能会对本土野生树木造成更多的损害。你看,基因改良树木相对于天然树木生长的更为迅猛。而且,基因改良树木一般来说跟天然树木是共同生长的。那么结果就是,基因改良树木会抢占天然树木的资源,诸如阳光、土壤和水等。慢慢地,基因改良树木就会挤走天然树木。
听力笔记内容:
Main point: 优点之中都存在问题
Sub point one: 如果遇到不能抵御的病虫害,可能会全部死亡
Sub point two: 会增加农民的成本,因为种子公司有权每年收费
Sub point three: 会损害天然森林,因为会争夺自然资源
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