Present Perfect Continuous

Use

1) actions started in the past and continuing up to the present

e.g. He 's been writing a letter for two hours. (He started two hours ago and he's still writing it)

2) past actions of certain duration having visible results or effects in the present

e.g. She 's been crying. (Her eyes are red.)

3) actions expressing anger, irritation, annoyance, explanation or criticism

e.g. Who has been using my toothbrush? (annoyance)

4) emphasis on duration (usually with for, since or how long)

e.g. She 's been calling on clients since this morning.

Time expressions: how long, for, since

Note: live, feel and work can be used either in the Present Perfect or the Present Perfect Cont. with no difference in meaning.

e.g. I’ve been living / I’ve livedin Rome for a year.

10.1 Complete the sentence using the verb in brackets in the present perfect continuous form:

1. I’m sorry to keep you waiting. I hope you (not wait) __________ long.

2. There you are! We (look for) __________ you all morning!

3. I feel really tired. I (study) __________ hard lately.

4. Anna has got a really good suntan. She (go) __________ to the beach a lot.

5. Tom needs cheering up. He (have) __________ a lot of problems lately.

6. I haven’t seen you for ages. What (you / do) __________?

7. I (work) __________ here for the past three years, and I really like it.

8. Sam and Chris (paint) __________ their room, and their clothes are covered in paint!

10.2 Underline the correct form:

A. Scientists 1) have recently identified / have been identifying a new species of animal in the rainforest of Borneo. They 2) have been searching / searched for this creature for several years, after reports from local villagers, and say it is a type of lemur.

B. Archaeologists in Guatemala 3) have found / have been finding a Mayan wall painting which they think is more than 2,000 years old. Archaeologist William Saturno 4) explored / has been exploring the site since 2002.

C. Scientists using the Hubble Space Telescope think they 5) found / have found two new moons circling the planet Pluto. Astronomers 6) have been looking / looked closely at Pluto since 1978 when they 7) spotted / have spotted its first moon. The telescope 8) worked / has been working for fifteen years, and 9) has been producing / has produced more than 700,000 images of the universe.

D. Australian scientists 10) have been discovering / have discovered a new coral reef over 60 km long in the Gulf of Carpentaria by using satellites to spot the reefs in deep water. Recently divers 11) have managed / have been managing to reach the reefs and take photographs.

Дата добавления: 2015-07-19