求一篇英语短文,要在两分钟之内演讲完,7月四号就要演讲了,最好是积极向上的

求一篇英语短文,要在两分钟之内演讲完,7月四号就要演讲了,最好是积极向上的
要短一点的，

good morning everyone,
my name is JACK,there were many unforgettable things during my childhood,some of them were sad,some of them were happy and some of them were amusing.no matter how many years have passed and i still have the clear memory.in order to get more happiness i would like to share one of the amusing things with you.wish you will like it!
when i was a little boy,i always dreamed to grow tall and almost every week i would measure my height by myself to see wheather i was taller or not.at that time there was a tree before our house.therefor,it was naturally considered as a tool to help me measure my height.and everytime when i measured my height i would draw a mark by a little knife to remind me of how tall i was before when i measured next time.as time went by,so many marks were drawn on the ppitiful trees.i would happy when i foud i was taller and i also would sad when i found i was the same height.thoese marks witnessed my prcess of being taller.maybe it was a kind of pain for the little tree that i can not imagine.i do thank for the help it gived to me.however,somedays latter when i was measuring my height i found the mark i drawn was below the mark i drawn last time.i felt amazing at that moment and how could i grow shorter.i do not know the reason and how sad i was.i decided to find the truth.so i took my mother to the tree and asked what the whole thing was,i need a reason.mum felt uncertain at the first sight and then she bursted into laughter.i did not know why and she touched my head."oh,baby,how foolish you are."mum said."do not think just you can grow up and the tree will grow up too,maybe sometimes it grows faster than you.so that you found the mark you make recently was below the old one.i smiled and i understood a truth.when we are focusing on the changes of our own,we can not ignore the development of other things around you.anything is changing all the time.that's all.thank you!