"Real English 19-Sky..."

On May 22, the Sky Tree will open in Tokyo.


I haven't been to Tokyo in a while, but now I have a good excuse to venture up north.


And while on the topic of "sky," can you understand the meaning of the sentences below.  All of them use the word "sky" in one form or another.




1) Last year, a famous stock analyst predicted that the stock market would sky rocket.
But his forecast was a pie in the sky.


2) Good things don't just drop out of the sky and land in your lap.  You have go get it yourself.  With hard work and determination, the sky is the limit!!  Reach for the sky!


3) Mr. M popped the question to his girlfriend out of the blue (=out of a clear blue sky.) over GW vacation.


4) It's not like the sky is falling.  Relax!