Bats tend to live in dark and wet places. There are all 1.____ of viruses. Bats always live in groups 2 .____ the viruses can have larger “playgrounds” to evolve (进化) and become more powerful variants (变体).
Bats are mammals (哺乳动物), just like humans. Our similar genes (基因) make it easier for 3.____ to become infected with the same viruses.
When bats fly, their body temperature can reach as 4.____ as 40 C. This high temperature can kill weak viruses, but 5.____ ones will survive (存活) and continue to evolve. Bats have special immune (免疫的) systems 6.____ allow them to live with viruses without getting sick. Since they can fly, bats can spread viruses farther and more easily than other animals.
Although wild animals carry many diseases, it doesn’t mean that we should view them7.____ evil. Each species has a role in the ecosystem (生态系统) and all of them are important for keeping a good ecological balance. The 8.____ we should learn from virus outbreaks is to respect and 9.____ animals and to live in harmony with them, instead 10.____ hunting, killing, or eating them.
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