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—Sorry, Mr. Smith. I promise (not be) late next time.

According to a study published earlier this year in a journal, the season length is growing, meaning that it is taking longer for leaves to change their colors. And this is not the only way that climate change is ruining the season.

"Trees are holding onto their leaves longer," explained Dr. Howard Diamond, a senior climate scientist. "In my own neighborhood, I can remember that the leaves would drop a lot sooner 20 years ago than they do now. This is a personal observation, but research actually supports this phenomenon (现象) we're witnessing."

Climate change isn't just causing the leaves to change later. We can also expect later frosts (霜) according to Dr. Michael E. Mann, a professor of the University of Pennsylvania. Mann said, "That means mosquitoes and pests (害虫) remain active for a longer time in autumn, posing a greater health risk to human beings."

If there is any good news at all, though, we may be able to stave off this development. Mann pointed out that if humans reduce their carbon dioxide emissions (排放), they can still prevent the worst effects of climate change from affecting them during the autumn months. "A new study recently provides further evidence that surface warming will likely stop after carbon emissions reach zero," Mann stated in his recent comment for Live Science.

Zu Ti was a great man of Jin Dynasty. He was1 for his hard work and great achievements. But when he was a child, he was a naughty (顽皮的) boy who showed little2 in reading. As he grew up, Zu Ti3 he didn't have enough knowledge. And he deeply felt that he could not serve his country well. So he made up his mind to study hard.

Zu Ti had a4 friend named Liu Kun. They had a deep friendship. So they stayed together every day. They even slept on one bed every night and5 at the same time every morning. One day, when they were6, Zu Ti heard the rooster crowing (打鸣). An7 came to him. He woke up Liu Kun and said, "How about getting up to play swords (剑)?" Though he was still sleepy, Liu Kun agreed with Zu Ti gladly. From then on, they got up and played swords as soon as the rooster began crowing. They kept their words day after day. They never gave up no matter how8 in winter or hot in summer. Besides, they began to study history9 and put all their energy into reading books. In this way , they learned a great deal of knowledge and made much progress. A few years later, both of them grew up with talents and wisdom. At last, their10 came true and they made great contributions to their country.

This is the Chinese idiom story To Rise with the Rooster.