Unit 2b Book

In a nutshell, what was the main function of the device demonstrated in the video in the listening task? Obviously, it prevents people from having access to your private information. So, if someone asks you what this device can do, you can use the verb “to be” + an adjective:

1)      It is able to prevent people from having access to your private information.

2)      or: It is capable of preventing people from having access to your private information.

Or you can use “to have” + a noun:

3)      It has the ability to prevent people from having access to your private information.

4)      or: It has the capacity to prevent people from having access to your private information.

5)      or: It has the capability to prevent people from having access to your private information.

6)      or: It has the capability of preventing people from having access to your private information.

As you can see, you must be very careful about using the correct phrase that follows the adjective in items 1) and 2), or the noun in items 3) to 6) above. Notice that with “capability”, you have a choice:

capability to + infinitive or: capability of + -ing form.

Now practice this grammar point by completing this task. Then write about your abilities in this writing task.