|
Читайте также: |
Work in groups and circle the correct answers:
1. a) Ozlem worked for two years in a primary school.
q Does she work there now? Yes / No
q What tense is the verb? Past Simple / Present Perfect
b) Ozlem has been a teacher for six years.
q Is she a teacher now? Yes / No
q What tense is the verb? Past Simple / Present Perfect
c) Circle the correct tense for the following rules:
q We use the Past Simple / Present Perfect when we talk about an action that happened in the past and is now finished.
q We use the Past Simple / Present Perfect for an action that started in the past and continues to the present.
2. a) Ozlem has taught fist and second grade.
q Do we know exactly when? Yes / No
q What tense is the verb? Past Simple / Present Perfect
b) I taught first grade in 2005.
q Do we know exactly when? Yes / No
q What tense is the verb? Past Simple / Present Perfect
c) Circle the correct tense for the following rules:
q We use the Past Simple / Present Perfect when we talk about something that happened at a specific time in the past.
q We often use the Past Simple / Present Perfect to talk about past experiences, when we don’t mention a specific time.
3. a) Pierre’s just come home from work.
q Is Pierre at home now? Yes / No
q When did he arrive there? A long time ago / A short time ago
b) Pierre hasn’t come home from work yet.
q Is Pierre at home now? Yes / No
q Do I expect him to come home? Yes /No
c) Which of the following sentences are correct?
q I’ve finished yet. / I’ve just finished. / I haven’t finished yet. / have you finished yet?
4. a) My dad’s gone to the doctor.
q Where is my dad? Here / At the doctor’s
b) My dad’s been to the doctor.
q Where is my dad? Here / At the doctor’s
c) Your husband arrives late home.
q What do you say? “Where have you been?” / “Where have you gone?”
5. a) Ozlem has had her current job for the last five years.
q Complete the sentence:
Ozlem has had her current job since __________.
b) Circle the correct variant for the following rules:
q We use for / since when we describe a length of time.
q We use for / since when we describe a time from a point in the past to now.
q We can use “for” with the past simple / present perfect / both.
q We can use “since” with the past simple / present perfect / both.
9.7 Read the text about climate change. Choose the correct form, A or B, to complete the sentence:
At the moment, scientists agree that the world's climate 1) B warmer over the past 50 years, but they disagree about the causes. Some believe that human activities 2) ___ climate change. They argue that for 1,000 or 2,000 years before 1850, when records 3) ___, the temperature was more or less stable. Short warm or cold periods 4) ___ during that time, but the climate always 5) ___ to the same level. However, since the Industrial Revolution, human beings 6) ___ more and more fossil fuels, such as coal and oil. In 1800 the atmosphere 7) ___ around 280 parts per million of carbon dioxide (CO2). Since then there 8) ___ an increase of about 3 l%. This extra carbon dioxide 9) ___ the world's temperature because of the greenhouse effect.
Other scientists disagree that human activities over the past 50 years 10) ___ global warming. They point out that volcanoes and other
natural processes 11) ___ CO2 into the atmosphere, and that human activity 12) ___ a rise in CO2 of only three per cent.
In 1999, 156 countries 13) ___ the Kyoto protocol, part of a United Nations agreement on climate change, which 14) ___ into force in 2005.They 15) ___ to reduce their emissions of CO2 and other greenhouse gases, although so far, some countries, such as the USA and Australia, 16) ___ any action.
1. A became B has become
2. A caused B have caused
3. A began B have begun
4. A occurred B have occurred
5. A returned B has returned
6. A burned B have burned
7. A contained B has contained
8. A was B has been
9. A raised B has raised
10. A caused B have caused
11. A always released B have always released
12. A contributed B has contributed
13. A signed B have signed
14. A came B has come
15. A agreed B have agreed
16. A did not take B have not taken
Дата добавления: 2015-07-19; просмотров: 330 | Нарушение авторских прав
| <== предыдущая страница | | | следующая страница ==> |
| Used to | | | Present Perfect Continuous |