PRACTICE-..

1.- Sentence structure: S + V + O

Choose a subject, a verb and an object to write affirmative, negative or interrogative sentences.



the operating system the hardware output devices input devices the CPU graphics programs the hard disk

control include show receive send need store

the hardware the operating system the software information data processing a lot of RAM the monitor


Example:

The operating system controls the hardware.
The output devices don't include the mouse.
Does the operating system show information?

2.- Negative sentences tutorial

Making negative sentences (action maze tutorial)

3.- Negative sentences

Re-write the following sentences to explain why they are not true; begin with a negative sentence, then write a correct affirmative one (if possible, add more information):



A computer virus destroys a computer immediately after infecting it. Computer technology changes slowly. Notebooks have a monitor. A wireless mouse connects to the CPU through a cable. You must insert a socket in the plug to recharge the battery. A projector shows an image from the computer on a large monitor. Printers generate the barcode labels. Banks use computers to look after their customers' money.


Example:
A computer virus doesn't destroy a computer immediately after infecting it: they infect other computers first; also, many viruses don't destroy the computers, they only delete information.

4.- Interrogative sentences tutorial

Making interrogative sentences (action maze tutorial)

5.- Interrogative sentences

Write a question with the words in the chart, then answer it.



a mouse / work / better / if / use / a mouse mat cheap loudspeakers / produce / high-quality sound an expansion card / improve / the CPU performace mobile phones / communicate / with / computers / through / a modem a function key / insert / a tabulation the backspace key / move / the cursor / to the left the delete key / move / the cursor / to the right an optical mouse / have / a ball people / use / a joystick / to play / games a folder / open / if / click / on it


Example:
Does a mouse work better if you use a mouse mat? Yes, it does.

6.- Present simple practice

Write the correct form of the verbs in brackets.

7.- Homework:

Write a similar exercise to one of the exercises 3, 5 or 6 above, and e-mail it to your teacher.