Next, we have personification " That tend on mortal thoughts" .

“That tend on mortal thoughts”这一句用了拟人化的手法。

Although they used to be called the fairer sex, they tend on average to live several years longer than men.

她们曾被称为the fairer sex（女性），她们的平均寿命比男性要长几年。

He helped tend crops on the family farm.

他帮助照料家庭农场的庄稼。

So earlier this year, I decided to take a US History course at my local community college because on my free time I tend to think about the future a lot.

因此，今年早些时候，我决定在当地社区大学学习美国历史课程，因为在空闲时间我往往会思考很多未来。