How can i earn 1,2 or 3$ by single click. Dear friend i am bigginer in this adsense business so please suggest me. My highest is 0.33$/click
Getting those clicks are few and far between, even if the top paying advertiser is 8 bucks, you could get way less than $1.00 for a click in that niche. Just target niches that are high paying, use google adwords keyword tool to see what advertisers are paying -- but this is really a waste of time IMO, it is better to target keywords with high searches and low competition. 0.33 cents for a click is fine, just keep building new sites on new niches and you will be hundreds of dollars per day in no time.
You can't target high paying ads. It's upto Google which ads will display on your website. Usually old and well established websites receive higher CPC then new sites.
You can't target high paying ad's, but you can target high paying niches -- which will most likely have high paying ads that show up.... And yes you can suggest to google certain content on your page to target, so they know what kind of ads you are looking for -- it is called section targeting. -- What is section targeting and how to use it
The keyword they use to find your site in the SERP(s) does not have any effect on how much you make for a click. Whether they use keyword1 or keyword2 to get to your homepage, the same advertisers will show and the same amount per click would be paid. Which page on your site that click was made on, and which advertiser they clicked on does however fluctuate income. Some pages on your site will have higher paying advertisers, resulting in higher paying clicks -- and of course which advertiser they click in, will determine how much you get because they are all paying different amounts. And for finding that, you are right -- google analytics is great, and then you can work on the SERP(s) for all the keywords related to that page to drive more traffic to it and increase earnings.