TPO 第29套 综合写作题目重新选题
阅读材料
收起Large numbers of dinosaur fossils have been discovered in deposits on Alaska’s North Slope, a region that today experiences an extremely cold, arctic climate. One hundred million years ago, when those dinosaurs were alive, the environment of the North Slope was already inhospitable, especially during the winter when it experienced several months of total darkness. How did the dinosaurs survive the wintertime? Paleontologists have proposed that one of the most common North Slope dinosaurs, the elephant-sized edmontosaur (Edmontosaurus), survived the winter by migrating south to more hospitable regions. Several arguments support the migration hypothesis.
First, the edmontosaur’s diet supports the migration hypothesis. Edmontosaurs fed exclusively on plants. Since there would have been no plants growing during the cold and dark North slope winter, it appears that the edmontosaur must have left for at least part of the year and migrated to more temperate zones to find food.
Second, many edmontosaur skeletons have been unearthed from the same site. This suggests that edmontosaurs lived in herd. Many modern-day migratory animals, such as caribou and buffalo, live and migrate in herds as well. Moving in herds helps animals coordinate their migration. The finding that edmonotsaurs lived in herds further supports the migration hypothesis.
Finally,ednonosaurs were physically capable of migrating long distances. To reach more hospitable region, the edmontosaur had to migrate about 1,600 kilometers southward. To make such a journey, the edmontosaur needed to move at about five kilometers per hour for several weeks, which is certainly could do. These animals could run very fast, reaching speeds up to 45 kilometers per hour. It could have easily used its locomotive power to move to warmer climate during the harsh arctic winters.
听力材料
收起写作题目
收起Summarize the points made in the lecture, being sure to explain how they support/contradict specific points made in the reading passage.
答题辅导
收起1. 阅读要点概括
Main point: edmontosaur (Edmontosaurus), survived the winter by migrating south to more hospitable regions.
Subpoint 1. Edmontosaurs fed exclusively on plants which cannot find in the cold and dark North slope winter.
Subpoint 2. Many edmontosaur skeletons have been unearthed from the same site, which suggests that edmontosaurs lived in herd.
Subpoint 3. Ednonosaurs were physically capable of migrating long distances.
2. 听力要点概括
Point 1. Edmontosaur did not have to migrate to find food because of one hundred million years ago the summer temperatures in the North Slope area were warmer than they are today.
Point 2. Animals lived in herds for many other reasons. For example, provides animals extra protection from predators.
Point 3. Juvenile edmontosaur were not physically capable of travelling in great distances required to reach warmer territories and would have slowed the herds so much that the herd never would have made to its destination.