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Past Perfect Continuous
Use Past Perfect Use Past 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.
1) action in the middle of happening at a stated past time e.g. He was playing tennis at 4.30 yesterday. 2) past action in progress interrupted by another past action. The longer action is in the Past Continuous, the shorter action is in the Past Simple. e.g. While I was getting dressed the bell rang. 3) two or more simultaneous past actions e.g. While I was sunbathing, Tim was swimming. or background description to events in a story e.g. She was flying to Parнs. The sun was shining...
Time expressions: while, when, as etc
11.1* Underline the correct form:
1. While he took / was taking a bath, Archimedes discovered / was discovering the principles of density and buoyancy. 2. When Edouard Benedictus, a French scientist, worked / was working in his laboratory, he dropped / was dropping a glass bottle which had some plastic inside – and invented / was inventing safety glass. 3. Columbus arrived / was arriving in America while he tried / was trying to reach the Far East. 4. Alexander Fleming discovered / was discovering penicillin by accident while he looked / was looking at some old experiments. 5. While Hiram Bingham climbed / was climbing in the mountains of Peru in 1911, he discovered / was discovering the lost city of Macchu Picchu. 6. While Isaac Newton sat / was sitting under an apple tree, an apple fell / was falling on hishead, and he understood / was understanding gravity. 7. While Dr Harry Coover tried / was trying to invent a newkind of plastic, he made / was making a very softsubstance which stuck / was sticking things together. It was Superglue. 8. While he observed / was observing the Moon throughhis telescope, Galileo realized / was realizing that it hadmountains and craters.
11.2A* Use the prompts to make a question. The answers are in Exercise 11.1: e.g. Where / Edouard Benedictus / work when he invented safety glass? – Where was Edouard Benedictus working when he invented safety glass? 1. Where / Columbus / try to go when he reached America? 2. Where / Isaac Newton / sit according to the story about gravity? 3. What / Dr Harry Coover / hope to invent? 4. What Galileo / look at / through his telescope?
11.2B* Complete the sentence with the past continuous form of the verb in brackets. The sentences refer to Exercise 12.1: 1. Edouard Benedictus (not try) _____________ to invent safety glass. 2. Alexander Fleming (not hope) _______________ to discover penicillin. 3. Hiram Bingham (not look for) ____________ the lost city of Macchu Picchu. 4. Isaac Newton (not sit) ____________ in his study when he understood gravity. 5. Dr Harry Coover (not conduct) ____________ an experiment to discover a kind of glue.
Grammar quiz: Simple and Continuous
1) past action which occurred before another action or before a stated past time He had left by the time I got there. (or by 8.15) 2) complete past action which had visible results in the past She was sad because she had failed the test 3) the Past Perfect is the past equivalent of the Present Perfect (He can't find his watch He has lost it) He couldn't find his watch. He had lost it
Time expressions: for, since, already, after, just, never, yet, before, by, by the time etc.
12.1 * Complete the sentence with the past simple or past perfect simple form of the verb in brackets:
1. When I (try) tried to use my laptop, I realized the battery (run) _______ down. 2. I (turn) _______ the computer off, but forgot that I (not save) _______ my work. 3. I only remembered I (not pay) _______ the bill when my Internet connection (stop) _______ working. 4. When I (receive) _______ the e-mail, I couldn't understand who (send) _______ it. 5. When I (check) _______ the instructions, I understood what I (do) _______. 6. I knew I (receive) _______ a virus when I (run) _______ the anti-virus program. 7. As soon as I (download) _______ the document, I knew I (make) _______ a mistake. 8. I could see what (go) _______ wrong as soon as I (look) _______ inside the printer. 9. I knew I (press) _______ the wrong key when nothing (happen) _______. 10. When the screen (go) _______ blank, I couldn't understand how it (happen) _______.
12.2 * Choose the correct form. A, B or C, to complete the sentences:
On 26 December 2004, Tilly Smith, a 10-year-old British schoolgirl, 1) was walking on the beach with her family. They 2) ___ Christmas in Thailand. Suddenly Tilly 3) ___ that something was wrong. She could see that the water 4) ___ and waves 5) ___ up the beach. The beach 6) ___ smaller and smaller. She 7) ___ that there had been an earthquake in Sumatra that morning, but she 8) ___ a geography lesson she 9) ___ at school just two weeks before. So she 10) ___ her mother what she 11) ___ about earthquakes and giant waves. Luckily for the Smith family, Tilly's teacher Andrew Kearney 12) ___ the class about earthquakes and 13) ___ them a video of a tsunami in Hawaii. Tilly 14) ___ screaming at her parents to get off the beach. They 15) ___ Tilly back to their hotel, which was not too close to the shore, and 16) ___ the alarm. One of the staff, who was Japanese, 17) ___ the word tsunami, and 18) ___ everyone to leave the beach. From their room on the third floor, the Smiths 19) ___ the terrible effects of the tsunami on the area. Thanks to Tilly, everybody from that beach 20) ___ that terrible day.
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