【正文】 s diet. Where the forest inhibits the growth of grass and other meadow plants, the blacktailed deer browses on huckleberry, salad, dogwood, and almost any other shrub or herb. But this is fairweather feeding. What keeps the blacktailed deer alive in the harsher seasons of plant decay and dormancy? One pensation for not hibernating is the builtin urge to migrate. Deer may move from highelevation browse areas in summer down to the lowland areas in late fall. Even with snow on the ground, the high bushy understory is exposed。 this is the groundwater that circulates as part of the water cycle. Ordinary meteoric water is water that has soaked into the ground from the surface, from precipitation (rain and snow) and from lakes and streams. There it remains, sometimes for long periods, before emerging at the surface again. At first thought it seems incredible that there can be enough space in the “solid” ground underfoot to hold all this water. （推理題 ，直接推理 ） 1. Which of the following can be inferred from paragraph 1 about the ground that we walk on? ○ It cannot hold rainwater for long periods of time. ○ It prevents most groundwater from circulating. ○ It has the capacity to store large amounts of water. ○ It absorbs most of the water it contains from rivers. TIMBERLINE VEGETATION ON MOUNTAINS Paragraph 1： The transition from forest to treeless tundra on a mountain slope is often a dramatic one. Within a vertical distance of just a few tens of meters, trees disappear as a lifeform and are replaced by low shrubs, herbs, and grasses. This rapid zone of transition is called the upper timberline or tree line. In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture. 3. Which of the following can be inferred from paragraph 1 about both the upper and lower timberlines? ○ Both are treeless zones ○ Both mark forest boundaries. ○ Both are surrounded by desert areas. ○ Both suffer from a lack of moisture. Paragraph 2： The upper timberline, like the snow line, is highest in the tropics and lowest in the Polar Regions. It ranges from sea level in the Polar Regions to 4,500 meters in the dry subtropics and 3,5004,500 meters in the moist tropics. Timberline trees are normally evergreens, suggesting that these have some advantage over deciduous trees (those that lose their leaves) in the extreme environments of the upper timberline. There are some areas, however, where broadleaf deciduous trees form the timberline. Species of birch, for example, may occur at the timberline in parts of the Himalayas. （推理題，對(duì)比推理） 4. Paragraph 2 supports which of the following statements about deciduous trees? ○ They cannot grow in cold climates. ○ They do not exist at the upper timberline. ○ They are less likely than evergreens to survive at the upper timberline. ○ They do not require as much moisture as evergreens do. ARCHITECTURE （推理題 ，細(xì)節(jié)推理 ） Paragraph 4： Even development in architecture has been the result of major technological changes. Materials and methods of construction are integral parts of the design of architecture structures. In earlier times it was necessary to design structural systems suitable for the materials that were available, such as wood, stone, brick. Today technology has progressed to the point where it is possible to invent new building materials to suit the type of structure desired. Enormous changes in materials and techniques of construction within the last few generations have made it possible to enclose space with much greater ease and speed and with a minimum of material. Progress in this area can be measured by the difference in weight between buildings built now and those of parable size built one hundred ago. 7. In paragraph 4, what does the author imply about modern buildings? ○ They occupy much less space than buildings constructed one hundred years ago. ○ They are not very different from the building of a few generations ago. ○ The weigh less in relation to their size than buildings constructed one hundred years ago. ○ They take a long time to build as a result of their plex construction methods. Paragraph 5: Modern architectural forms gen