Select all text: Ctrl + A
Select a word: double click on word
Select multiple words: double click on the first word you want to include and drag the cursor to last word you want to include
Select a word: Double-click the word.
Select a paragraph: Triple-click in the paragraph.
Select a range of text: Click in front of the first character, then hold down the Shift key on your keyboard and click at the end of the text you want to select