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2015年7月13日 星期一

The Past Simple Tense

Past simple tense (p. 181-182)
1.      Use the past simple to talk about an event or events happening in the past.
Ex:
It is 5:30 now.
I finished my homework at 5:00.
I finished it 30 minutes ago.
                                        5:00                5:30
--------------------------------------------------------------l-----------------------------l-------------à
                                 I finished my homework       
                                       (past)                (now)

Before advancing, study this example:
Wolfgang Amadeus Mozart was an Austrian musician and composer. He lived from 1756 to 1791. He started composing at the age of five and wrote more than 600 pieces of music. He was only 35 years old when he died.
Lived/ started/ wrote/ was/ died are all past simple.
        

Forms

Verb (past simple)

Time marker (of the past)
      John                 finished               his homework          7 minutes ago.
   Lynn and Ben             were                 in America             last year.
      Tim                didn’t go to             his English class         yesterday afternoon.
      Sam                  wrote                a letter to May          this morning.

In the examples above, the verbs and time markers correspond to the rules of the past simple tense. The verbs are in their past tense forms and the time markers are of the past.

2.      Verbs and the past simple
There are two kinds of verbs in the past simple – regular and irregular.

Regular verbs usually ends in – ed.
Rules for –ed ending:
For most regular verbs, add – ed.
accept à accepted   bother à bothered   cook à cooked
allow à allowed     call à called       help à helped
For verbs ending in – e, add only –d.
dance à danced   believe à believed   blame à blamed
hate à hated      realize à realized    smoke à smoked
For one-syllable verbs ending in one vowel + one consonant, double the final consonant + -ed.
drum à drummed   fan à fanned      rip à ripped
grab à grabbed     nod à nodded     stop à stopped
For two-syllable verbs which end in one stressed vowel + one consonant, double the final consonant + ed.
prefer à preferred   refer à referred    regret à regretted
For two-syllable verbs which end in one unstressed vowel + one consonant, add –ed.
wonder à wondered   thunder à thundered
For verbs ending in consonant + y, change the y to I and then add – ed.
apply à applied     cry à cried       comply à complied
copy à copied      envy à envied     fry à fried
For verbs ending in vowel (a, e, o) + y, add only –ed.
delay à delayed    display à displayed  play à played
stay à stayed       pray à prayed      obey à obeyed
For verbs ending in –I, add only –ed.
ski à skied         taxi à taxied

A short list of Irregular verbs (for a longer list, please click me)
Root verb
Simple past
Root verb
Simple past
beat à beat
sing à sang
eat à ate
hurt à hurt
hang à hung
spend à spent
Verbs to be:
Root verb
Simple past
is à was
am à was
are à were

3.      time markers and the past simple
Here is a list of some commonly seen past-time expressions
yesterday or yesterday + ____
yesterday   yesterday evening   yesterday morning   yesterday afternoon
the day before yesterday   two days before yesterday
last + _____
last week   last month   last Tuesday   last summer   last weekend
last year    last Monday and Tuesday
____ + ago
a year ago   three months ago   five weeks ago   a decade ago
a millennium ago   five hundred years ago
Others:
this morning   at that time   then   in 1998

4.      Statements
To talk about many kinds of past events:
Short, quickly finished actions and happenings
-         Last week May had a bad fall while ice-skating and broke her leg.
-         Not long ago John took my pen without telling me.
Longer situations
-  Jane spent much of her childhood at a boarding school in Texas.
Repeated events
-  While in college, Kathy fell in love four times before she married Ben.

5.      Negative statements and questions
In questions and negatives we use did/didn’t + base verb (look/ eat etc.):
I
she
they
enjoyed
saw
went
did
you
she
they
enjoy?
see?
go?
I
she
they
didn’t
enjoy
see
go

Examples:
1.      A: Did you go out last night?
B: Yes, I went to the cinema, but I didn’t enjoy the film much.
2.      ‘When did Mr. Thomas die?’ ‘About ten years ago.’
3.      They didn’t invite her to the party, so she didn’t go.
4.      ‘Did you have time to write the letter?’ ‘No, I didn’t.’
In the following examples, do is the main verb in the sentence (did…do/ didn’t do):
5.      What did you do at the weekend?
6.      I didn’t do anything.

I/ he/ she/ it   was/ wasn’t
we/ you/ they   were/weren’t
was   I/ he/ she/ it?
were   we/ you/ they?

Ex:
1.      Was the weather good when you were on holiday?
2.      They weren’t able to come because they were too busy.
3.      Did you go out last night or were you too tired?
4.      Sam didn’t do his homework last night.

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