来源：南通环球雅思学校
小编： 429| Passage one | |||
| 文章新旧 | 旧题（可参考V071208P1） | ||
| 文章标题 | 霸王龙T—REX | ||
| 文章题型 | 是非判断题7道；SUMMARY选词填空6道； | ||
| 文章内容 | 相关文章阅读： EXTINCTION OF THE DINOSAURS Paleontologists have argued for a long time that the demise of the dinosaurs was caused by climatic alterations associated with slow changes in the positions of continents and seas resulting from plate tectonics. Off and on throughout the Cretaceous (the last period of the Mesozoic era, during which dinosaurs flourished), large shallow seas covered extensive areas of the continents. Data from diverse sources, including geochemical evidence preserved in seafloor sediments, indicate that the Late Cretaceous climate was milder than today’s. The days were not too hot, nor the nights too cold. The summers were not too warm, nor the winters too frigid. The shallow seas on the continents probably buffered the temperature of the nearby air, keeping it relatively constant. At the end of the Cretaceous, the geological record shows that these seaways retreated from the continents back into the major ocean basins. No one knows why. Over a period of about 100,000 years, while the seas pulled back, climates around the world became dramatically more extreme: warmer days, cooler nights; hotter summers, colder winters. Perhaps dinosaurs could not tolerate these extreme temperature changes and became extinct. If true, though, why did cold-blooded animals such as snakes, lizards, turtles, and crocodiles survive the freezing winters and torrid summers? These animals are at the mercy of the climate to maintain a livable body temperature. It’s hard to understand why they would not be affected, whereas dinosaurs were left too crippled to cope, especially if, as some scientists believe, dinosaurs were warm-blooded. Critics also point out that the shallow seaways had retreated from and advanced on the continents numerous times during the Mesozoic, so why did the dinosaurs survive the climatic changes associated with the earlier fluctuations but not with this one? Although initially appealing, the hypothesis of a simple climatic change related to sea levels is insufficient to explain all the data. Dissatisfaction with conventional explanations for dinosaur extinctions led to a surprising observation that, in turn, has suggested a new hypothesis. Many plants and animals disappear abruptly from the fossil record as one moves from layers of rock documenting the end of the Cretaceous up into rocks representing the beginning of the Cenozoic (the era after the Mesozoic). Between the last layer of Cretaceous rock and the first layer of Cenozoic rock, there is often a thin layer of clay. Scientists felt that they could get an idea of how long the extinctions took by determining how long it took to deposit this one centimeter of clay and they thought they could determine the time it took to deposit the clay by determining the amount of the element iridium (lr) it contained. It has not been common at Earth’s since the very beginning of the planet’s history. Because it usually exists in a metallic state, it was preferentially incorporated in Earth’s core as the planet cooled and consolidated. lr is founding high concentrations in some meteorites, in which the solar system’s original chemical composition is preserved. Even today, microscopic meteorites continually bombard Earth, falling on both land and sea. By measuring how many of these meteorites fall to Earth over a given period of time, scientists can estimate how long it might have taken to deposit the observed amount of lr in the boundary clay. These calculations suggest that a period of about one million years would have been required. However, other reliable evidence suggests that the deposition of the boundary clay could not have taken one million years. So the unusually high concentration of lr seems to require a special explanation. In view of these facts, scientists hypothesized that a single large asteroid, about 10 to15 kilometers across, collided with Earth, and the resulting fallout created the boundary clay. Thei calculations show that the impact kicked up a dust cloud that cut off sunlight for several months, inhibiting photosynthesis in plants; decreased surface temperatures on continents to below freezing; caused extreme episodes of acid rain; and significantly raised long-term global temperatures through the greenhouse effect. This disruption of food chain and climate would have eradicated the dinosaurs and other organisms in less than fifty years. | ||
| Passage two | |||
| 文章新旧 | 旧题（可参考2012年9月15日阅读） | ||
| 文章标题 | 英国戏剧发展史 | ||
| 文章题型 | 标题对应题6道；人名与事件配对3道； 完成单句缺词填空3道； | ||
| 文章内容 | 英国戏剧不同时期的发展及演变历史； | ||
| Passage three | |||
| 文章新旧 | 旧题（可参考V090912P3） | ||
| | 小班教学 | ||
| 文章题型 | 段落信息配对5道；归类配对10道； | ||
| 文章内容 | 小班教学教学效果是否好，通过project对小班教学进行试验，检验教学效果及教育水平； | ||
| 本次考题总体分析及未来走向： 1. 主流题型依然是配对题（8道）；是非判断题（7道）；摘要填空题（6道）；考生务必重视！ 2. 次主流题型标题对应题（List of Headings）6道，归类题（classify）这次出现了10道，还是不能轻视松懈；这次倒没有简答； 3. 同学普遍反映今天的考试前两篇做好了之后，第三篇来不及做，在较难的第二篇花费了很多时间； 4. 从题材来看，对于动物类的研究出现的还是比较多，科技说明文倒是较少，大家平时可以多关注了解； 5. 11、12月的考试趋势，主流题型还是不变的是非无判断，配对，摘要填空，标题对应，选择；从题材来看，发展史，教育类，语言类，植物类，动物类，气候类依然是考察的重点题材。 | |||
