Hope this link works....
This is for Mac user only....
Have you ever struggled proof reading your own paper or experience frustration while proofing someone Else's because they don't agree with your edits? While my suggestion is to have "Alex" proof read your paper.
From the apple menu ( top right) select system preferences.
Click on "speech"
Change the settings to select " Speak Selected text when the key is selected"
Next select the "Universal Access Tab" also in the system preferences.
VoiceOver may be turned on by pressing pressing Command + F5. VoiceOver may also be turned on in the Universal Access panel of System Preferences:
- Chose Apple menu > System Preferences, and click Universal Access. (Alternatively, click on the System Preferences icon in the dock.)
- Click on the Seeing tab.
- Check the radio button labeled On in the VoiceOver section (Figure 1).
- If desired, click on the Open VoiceOver Utility... button to configure VoiceOver options