Type2Learn for Chrome
More About Type2Learn
Steps to use the extension:
1) Select a paragraph by clicking on it or selecting any word from it
2) Click on the extension icon in the toolbar. A popup will appear.
3) Click on the button - Prepare Text. You should see the first letter of the paragraph highlighted.
4) Start typing from the beginning of the selected paragraph.
PS: this extension version currently works on the pages in which the text selected is in paragraph HTML tag