Tuesday, February 28, 2012

Present Perfect Vs. Simple Past


Certain time in the past or just / already / yet?
Do you want to express that an action happened at a certain time in the past (even if it was just a few seconds ago) or that an action has just / already / not yet happened?
Simple Past
Present Perfect Simple
certain time in the past
Example:
I phoned Mary 2 minutes ago.
just / already / not yet
Example:
I have just phoned Mary.

Certain event in the past or how often so far?
Do you want to express when a certain action took place or whether / how often an action has happened till now?
Simple Past
Present Perfect Simple
certain event in the past
Example:
He went to Canada last summer.
whether / how often till now
Example:
Have you ever been to Canada? / I have been to Canada twice.

Emphasis on action or result?
Do you just want to express what happened in the past? Or do you want to emphasize the result (a past action's consequence in the present)?
Simple Past
Present Perfect Simple
Emphasis on action
Example:
I bought a new bike. (just telling what I did in the past.)
Emphasis on result
Example:
I have bought a new bike. (With this sentence I actually want to express that I have a new bike now.)

Signal Words
Simple Past
Present Perfect Simple
§  yesterday
§  ... ago
§  in 1990
§  the other day
§  last ...
§  just
§  already
§  up to now
§  until now / till now
§  ever
§  (not) yet
§  so far
§  lately / recently

Source... EGO4U.COM
Here you have some exercises...
Exercises: Simple Past or Present Perfect Simple
 Put the verbs into the correct tense (simple past or present perfect simple.
Principio del formulario
Exercise 1
1.     Mother: I want to prepare dinner. (you / wash) ________________ the dishes yet?
2.    Daughter: I (wash)  ________________  the dishes yesterday, but I (have / not)  ________________  the time yet to do it today.
3.    Mother: (you / do / already)  ________________  your homework?
4.    Daughter: No, I (come / just)  ________________  home from school.
5.    Mother: You (come)  ________________  home from school two hours ago!
6.    Daughter: Well, but my friend Lucy (call)  ________________  when I (arrive)  ________________  and I (finish / just)  ________________  the phone call.
7.    Mother: (you / see / not)  ________________  Lucy at school in the morning?
8.    Daughter: Yes, but we (have / not)  ________________  time to talk then.Final del formulario
Exercise 2
1.     A: I (cycle / just)  ________________  50 km.
2.    B: I (cycle)   ________________ 100 km last week.
3.    A: I (write)   ________________ an essay yesterday.
4.    B: I (write / already)  ________________  two essays this term.
5.    A: I (ring / just)  ________________  my friend.
6.    B: I (ring)  ________________  my friend 10 minutes ago.
7.    A: Two days ago, I (watch)  ________________  a Madonna concert on TV.
8.    B: I (see / already)  ________________  Madonna live in concert.
9.    A: I (spend)  ________________  my summer holiday in Australia last year.
10.  B: I (be / not)  ________________  to Australia yet.
Exercise 3
1.     A: (you / be / ever)   ________________ to London?
2.    B: Yes, I (be)   ________________ there three times.
3.    A: When (be)  ________________  the last time you (be)  ________________  there?
4.    B: Last summer. I (spend)   ________________ two weeks in Brighton with my parents and we (go)  ________________  to London one weekend.
5.    (you / like)  ________________  it?
6.    Oh yes. We really (have)   ________________ a great time in London.
7.    Lucky you! I (be / never)   ________________ to London.
Exercise 4
1.     A: (you / try / ever)  ________________  haggis?
2.    B: Oh, yes!
3.    A: How often (you / eat)  ________________  haggis yet?
4.    B: Two times exactly.
5.    A: When (you / eat / first)  ________________  haggis?
6.    B: That (be)   ________________ in 2005. We (have)   ________________ a Scottish festival in our town and they also (sell)   ________________ traditional Scottish food. So I (buy)   ________________ haggis.
7.    A: (you / like)   ________________ it?
8.    B: It (be / not)  ________________  too bad. And I (know / not)   ________________ anything about haggis then.
9.    A: When (you / find out)  ________________ ?
10.  B: When I (be)  ________________  in Scotland in 2007. I (go)   ________________ to a restaurant and (order)  ________________  haggis. Afterwards, the waiter (tell)   ________________ me about haggis: it's the heart, liver and lungs of a sheep, boiled in the animal's stomach. Well, I (eat / never)   ________________ haggis again since then.

Exercise 5
1.     A: (you / buy)  ________________  the tickets for our journey yet?
2.    B: Yes, I (go)   ________________ to the station yesterday and (buy)   ________________ the tickets.
3.    A: What time (you / go)  ________________  there?
4.    B: I (take)  ________________  a friend to the station in the morning. His train (leave)   ________________ at 9:45.
5.    A: (you / pack)   ________________ your bags yet?
6.    B: Of course. And I (ask / already)  ________________  my neighbor to empty my letter box. What about you?
7.    B: I (pack)  ________________  my bags two days ago.
Exercise 6
1.     Yesterday, my brother (come)  ________________  home from school, (switch)   ________________ on the TV and(watch)   ________________ TV until dinner (be)  ________________  ready.
2.    Oh no, it's raining and I (leave)  ________________  my umbrella at home.
3.    Look! There is so much food left. Nobody (eat)  ________________  anything.
4.    Where (you / be)  ________________  yesterday? - I (go)   ________________ to the shopping centre and (buy)  ________________  a new computer game.
5.    Why don't you want to play football with us this weekend? - I (break)  ________________  my leg.
6.    The road is closed. There (be)  ________________  an accident.
7.    I (have)  ________________  an accident when I (be)   ________________ in Manchester last year.
8.    Come on, let's celebrate! Our team (win)  ________________  the match.
Exercise 7
1.     A: (you / play / already)  ________________  the new computer game?
2.    B: No, not yet. I only (buy)  ________________  it yesterday and I (have / not)  ________________  the time yet.
3.    A: (you / go)  ________________  to the cinema last night?
4.    B: Yes. I (be)  ________________  there with Sue and Louis. (you / be)   ________________ to the cinema recently?
5.    A: I last (go)  ________________  to the cinema two weeks ago.
6.    B: So you (see / not)  ________________  the new action film yet.
7.    A: No, unfortunately not. (you / enjoy)   ________________ it?
8.    B: Oh, I really (love)  ________________  it. But Sue (like / not)  ________________  it - too much action!
9.    A: But why (you / take)   ________________ her with you? She (tell)   ________________ me last week that she (hate)  ________________  action films.
10.  B: I think she has an eye on Louis. She (try)  ________________  to flirt with him all the time. So he (can / concentrate / not)   ________________ on the film.
Exercise 8
1.     I (just / finish)   ________________ my homework.
2.    Mary (already / write)  ________________  five letters.
3.    Tom (move)  ________________  to this town in 1994.
4.    My friend (be)  ________________  in Canada two years ago.
5.    I (not / be)  ________________  to Canada so far.
6.    But I (already / travel)  ________________  to London a couple of times.
7.    Last week, Mary and Paul (go)  ________________  to the cinema.
8.    I can't take any pictures because I (not / buy)   ________________ a new film yet.
9.    (they / spend)   ________________ their holiday in New Zealand last summer?
10.  (you / ever / see)  ________________  a whale?

To check your answers please sen me a mail to teacherroscba@gmail.com 


I would like to leave you the words of one of my heroes...