Unit 1
Lessons 2-3
Student’s Book pages 13-14
GRAMMAR
The Present Perfect with yet and already.
● We use the Present Perfect with yet to describe a period of time up till now. We use yet in negative sentences, to talk about something that hasn’t happened at the moment of speaking.
I haven’t found a topic for my project yet.
● We use subject + hasn’t / haven’t + the past participle + yet. Used in this way, yet is placed at the end of a sentence.
Sarah hasn’t bought the bread yet.
They haven't saved the rainforests yet.
● We also use yet in questions, to ask if something has happened.
Have you found your keys yet?
Have you called your friend to check on him yet?
● We use the Present Perfect with already to talk about something that happened and was completed before the moment of speaking.
Logging has already begun in the area.
● We use subject + has / have + already + the past participle. The contractions ’s and ’ve are often used.
The loggers have already destroyed a lot of trees.
Nader has already travelled to England.