about calculas 1

Here's the website I like for Calculus 1.......http://tutorial.math.lamar.edu/Classes/CalcI/CalcI.aspx

If you look under "Class Notes,"   he also presents Calc 2 and Calc 3 notes...

I find that the explanations are thorough, and easily understood......

Can I download the book from here ?? 

No this is a different site that CPhill has given you. 

so what can I do ! 

I am assuming that they would just be downloaded to your computer and then you would attempt to work through them.

If you do not think that this is right then you may be correct.