Complete the text with phrases from the box.
Use the correct past or present tenses
contained - existed - found - has allowed - have been digging - has produced - has been trying - has been - have been found - have unearthed - perished - has discovered - walked - were discoverred
Paleontologists in New Mexico (1) ……… the remains of at least one dinosaur from
the late Jurassic period. The paleontologists, from Canada, (2) ……… in a formerly
unexplored part of the Morrison Formation – a vast fossil bed – for the last eight
months. Early last week one of the group (3) ……… a section of rock which (4)
……… a number of bones from one, or possibly more, large herbivorous dinosaurs.
Since then, the group (5) ……… to release the bones from the rock and piece them
together. The paleontologists believe that the bones may form a whole dinosaur
family. It is possible that the whole family (6) ……… while trying to protect the
young from predators.
According to Bryce Larson, the group’s leader, the bones are from a large
brachiosaurus. These animals (7) ……… approximately 150 million years ago and
are counted amongst the largest dinosaurs that ever (8) ……… the Earth. Other
brachiosaurus remains (9) ……… in the Morrison, but these latest bones are very
large and may prove to come from the largest dinosaur anyone (10) ……… to date.
For a long time the Morrison Formation (11) ……… one of the most productive
fossil beds in the world. Since the first bones (12) ……… there in 1877, it (13) ……… tons of material. The Morrison, more than any other fossil bed, (14) ………
us an insight into the late Jurassic period in North America. It seems that the latest
find could reveal even more about the giants of the Jurassic.
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Palaeontologists in New Mexico have unearthed the remains of at least one dinosaur from the late Jurassic period. The palaeontologists, from Canada, have been digging in a formerly unexplored part of the Morrison Formation - a vast fossil bed - for the last eight months. Early last week one of the group found a section of rock which contained a number of bones from one, or possibly more, large herbivorous dinosaurs. Since then, the group has been trying to release the bones from the rock and piece them together. The palaeontologists believe that the bones may form a whole dinosaur family. It is possible that the whole family perished while trying to protect the young from predators. According to Bryce Larson, the group's leader, the bones are from a large brachiosaurus. These animals existed approximately 150 million years ago and are counted amongst the largest dinosaurs that ever walked the Earth. Other brachiosaurus remains has been found in the Morrison, but these latest bones are very large and may prove to come from the largest dinosaur anyone has discovered to date. For a long time the Morrison Formation has been one of the most productive fossil beds in the world. Since the first bones were discovered there in 1877, it has produced tonnes of material. The Morrison, more than any other fossil bed, has allowed us an insight into the late Jurassic period in North America. It seems that the latest find could reveal even more about the giants of the Jurassic.
El presente perfecto se usa para acciones que siguen pasando, el pasado simple para acciones que ya terminaron.
Presente Perfecto.
El presente perfecto se usa para hablar de acciones que iniciaron en el pasado pero que aún siguen sucediendo en el presente, la estructura para hacer las oraciones es la siguiente.
- Sujeto + Verbo Auxiliar (Have/has) + Verbo en participio pasado + Complemento.
Pasado Simple.
El pasado simple se usa para hablar de acciones culminadas en el pasado.
Su estructura es:
- Sujeto + verbo en pasado + complemento.
Paleontologists in New Mexico 1. found the remains of at least one dinosaur from the late Jurassic period. The paleontologists, from Canada, 2. have been digging in a formerly unexplored part of the Morrison Formation – a vast fossil bed – for the last eight months. Early last week one of the group 3. contained a section of rock which 4. contained a number of bones from one, or possibly more, large herbivorous dinosaurs.
Since then, the group 5. has been trying to release the bones from the rock and piece them together. The paleontologists believe that the bones may form a whole dinosaur family. It is possible that the whole family 6. perished while trying to protect the young from predators.
According to Bryce Larson, the group’s leader, the bones are from a large brachiosaurus. These animals 7. existed approximately 150 million years ago and are counted amongst the largest dinosaurs that ever 8. walked the Earth. Other brachiosaurus remains 9. have been found in the Morrison, but these latest bones are very large and may prove to come from the largest dinosaur anyone 10. has discovered to date.
For a long time the Morrison Formation 11. has been one of the most productive fossil beds in the world. Since the first bones 12. were discovered there in 1877, it 13. has produced tons of material. The Morrison, more than any other fossil bed, 14. has allowed us an insight into the late Jurassic period in North America. It seems that the latest find could reveal even more about the giants of the Jurassic.
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