How To Select Text Quickly
1) You can double-click anywhere within a paragraph to select / highlight a word in MS Word.
2) By triple-click anywhere within a paragraph you select the entire paragraph in Word. Or press the CTRL key and click anywhere within the sentence to select the entire sentence.
3) You can also select rectangular blocks of text in a Word document, similar to the marquee tool in Photoshop, and apply formatting to the selected area. Hold down the ALT key and drag your mouse to select any rectangular area