DETECTIVES Teacher's Guide - Book - Page 125
THE DETECTIVES - TEACHER’S GUIDE - Unit 3
Just like in Present Simple, too, in the Past Simple too we have spelling rules for adding ‘ed’.
Let’s look at them:
Write: Spelling Rules for the Past Simple
Say:
If the verb ends in ‘e‘, we only add ‘d’, so bake becomes baked.
If the verb ends in ‘y’ but before the ‘y’ there is a vowel, we just add ‘ed‘. So play becomes
played.
If the verb ends in ‘y’ but before the ‘y’ there is a consonant, we drop the ‘y’ and add ‘ie’
instead. So study becomes studied.
Let’s practice a few verbs.
Write the following verbs on the board and have the students copy, adding ‘ed’ to form the past
tense:
bake(d)/ solve(d) / finish(ed) / walk(ed) / watch(ed) / cook(ed) / play(ed) / stud(ied).
When they have finished, check the answers with them on the board.
Say and ask:
Now let’s look at how we form questions and negatives.
Look at your books.
What do you see? (Help them find the auxiliary/ helping verb ‘did’.)
We use the helping verb ‘did’ to make questions and negative sentences.
Let’s look at the examples.
What do you notice? (Help them notice that the verb is in the base form when there is
‘did’ in the sentence.)
Do you remember what a helping verb does?
Yes, it helps the verb; it is a helping verb.
So if the verb is supposed to carry the Past Tense, the helping verb will get the past tense
(did) and the main verb stays in the base form.
Let’s practice a few sentences.
Time Expressions
Explain that time expressions tell us when something happened in the sentence.
Give two examples on the board:
I played tennis yesterday.
We watched a movie last week.
Have the students look at the list on page 83 of their books.
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