UNIT 4 LESSON 4

PRESENT PERFECT PASSIVE

You can use the present perfect passive to talk about a past action or event that has an impact in the present.

 

New regulations have been announced by the government.

The report has been compiled by a safety expert.

A decision has been made by the local council.

Remember, we often use the passive when the object of the action is more important than the agent (in other words, the person or thing that carried out the action). In fact, the agent can sometimes be dropped altogether.

 

New regulations have been announced.

The report has been compiled.

A decision has been made.

'Hurricanes,' 'typhoons,' 'cyclones' and 'tornadoes' 

Violent oceanic storms with strong winds are referred to by different names, based on the ocean they are located in.

 

Hurricane Bonnie hit the southeast coast of the US at speeds of over 90 miles per hour.

   

A typhoon struck last night over the island of Mindanao in the Philippines, destroying many villages.  

   

The weather system, off the coast of Chennai, has been upgraded tocyclone status.  

A rotating, vertical column of air that moves across land is called a tornado.

   

The tornado traveled more than 10 miles across the state of Texas, picking up cars and destroying buildings.

REVIEW: ZERO CONDITIONAL

 

The zero conditional can be used to give instructions, advice, warnings or information. Notice that both the if clause and the result clause are in the present tense.

 

If a tsunami occurs, move to higher ground right away.

Keep away from the shoreline if a tsunami is approaching land.

If there is a flood, do not go to a basement.