1. (2021·滦州模拟) 阅读单选

Be thankful that you don't already have everything you want,

If you did, what would there be to look forward to?

Be thankful when you don't know something,

For it gives you the chance to learn.

Be thankful for the difficult times,

During those times you grow.

Be thankful for your disadvantages,

Because they give you chances of improvement.

Be thankful for each new challenge,

Because it will build your strength and character.

Be thankful for your mistakes,

They will teach you valuable lessons.

Be thankful when you're tired and bored,

Because it means you've made a difference.

Be thankful for your past relationships,

Someone better suited to you is waiting out there.

Gratitude（感谢）can turn a negative into a positive.

Find a way to be thankful for your troubles, and they can become your blessings.

1. （1） What can we infer from the poem?

   A . The writer lives a hard life. B . The writer has an active and positive attitude towards life. C . The writer is afraid of making mistakes. D . The writer is never thankful for what he had.
3. （2） What's the poem mainly talking about?

   A . Valuable lessons. B . Being thankful. C . Making a difference. D . New challenge.