【正文】 道“樹冠下的植被并不茂密”。此題的信息詞是“ canopy”和“ overabundance of plants”。第二段最后一句談到了“熱帶雨林主要分布在赤道兩側(cè) ”，但這并不能推斷出“世界上大部分熱帶雨林位于非洲大陸”。 3． NG．推斷題。文章第四段的首句談到了熱帶雨林的氣候：“ This steadv climate is due to the position of rainforests on the globe，注意這兒用了“ steady一詞。 2． Y．細(xì)節(jié)題。如今熱帶雨林僅占地表面積 6%，但它卻是一半以上的地球生物的家園。s tropical rainforests will be wiped out within 40 years. Questions: 1. Virtually all plant and animal species on Earth can be found in tropical rainforests. 2. There is not much change in the weather in the tropical rainforests all the year round. 3. The largest number of rainforests in the world are located on the African continent. 4. Below the canopy level of a tropical rainforest grows an overabundance of plants. 5. New tree seedlings will not survive to reach the canopy level unless _________. 6. Epiphytes, which form much of the understory of the rainforest, get all their water and nutrients from__________ 7. Stranglers are so called because they ______by blocking for the nutrients. 8. Since rainforest bacteria and trees depend on each other for life, the relationship they form is termed______ 9. Plant species are dispersed over a larger area with the help of _________, 10. As we are still ignorant of millions of unique life forms in the rainforest, deforestation can be pared to the destruction of _______ 對試點(diǎn)樣卷的詳細(xì)解答如下： 1 。s rainforests are an extremely valuable natural resource, to be sure, but not for their lumber or their land. They are the main cradle of life on Earth, and they hold millions of unique life forms that we have yet to discover. Destroying the rainforests is parable to destroying an unknown pla— we have no idea what we39。 a plant, the seeds pass through their digestive system. By the time they excrete (排泄 ) the seeds, the bird39。 All Creatures, Great and Small Rainforests are home to the majority of animal species in the world. And a great number of species who now live in other environments, including humans, originally inhabited the rainforests. Researchers estimate that in a large rainforest area, there may be more than 10 million different animal species. Most of these species have adapted for life in the upper levels of the rainforest, where food is most plentiful. Insects, which can easily climb or fly from tree to tree, make up the largest group (ants are the most abundant animal in the rainforest). Insect species have a highly symbiotic relationship with the plan! life in a rainforest. The insects move from plant to plant, enjoying the wealth of food provided there. As they travel, the insects may pick up the plants39。s branches extend upward, spreading out into the canopy, Eventually, the strangler may block so much light from above, and absorb such a high percentage of nutrients from the ground below, that the host tree dies. Competition over nutrients is almost as intense as petition for light. The excessive rainfall rapidly dissolves nutrients in the soil, making it relatively infertile except at the top layers. For this reason, rainforest tree roots grow outward to cover a wider area, rather than downward to lower levels. This makes rainforest trees somewhat unstable, since they don39。t have to form its own supporting structure. Some plant species, called epiphytes, grow directly on the surface of the giant trees. These plants, which include a variety of orchids and ferns, make up much of the understory, the layer of the rainforest right below the canopy. Epiphytes are close enough to the top to receive adequate light, and the runoff from the canopy layer provides all the water and nutrients (養(yǎng)分 ) they need, which is important since they don39。 Reading Comprehension (Skimming and Scanning) (15 minutes) Directions： In this part， you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1 For questions14， mark Y(for YES) if the statement agrees with the information given in the passage； N(for NO) if the statement contradicts the information given in the passage； NG(for NOT GIVEN) if the information is not given in the passage． For questions 5l0, plete the sentences with the information given in the passage． Rainforests Tropical rainforests are the most diverse ecosystem(生態(tài)系統(tǒng) )on Earth， and also the oldest． Today, tropical rainforests cover only 6 percent of the Earth’ S ground surface， but they are home to over half of the pla’s plant and animal species． What Is a Rainforest? Generally speaking, a rainforest is an environment that receives high rainfall and is dominated by tall trees. A wide range of ecosystems fall into this category, of course. But most of the time when people talk about rainforests, they mean the tropical rainforests located near the equator. These rainforests receive between 160 and 400 inches of rain per year. The total annual rainfall is spread pretty evenly throughout the year, and the temperature rarely dips below 60 degrees Fahrenheit. This steady climate is due to the position of rainforests on the globe. Because of the orientation of the Earth39。歸納起來，應(yīng)有以下步驟： a．略讀文章前一、二段和各小標(biāo)題，歸納出文章的主旨； (原略讀第一步 ) b．目光快速掃描一遍文后題目，回答主旨題，確定其他題目關(guān)鍵詞； (原查讀第一步 ) c．根據(jù)關(guān)鍵詞，查讀各章節(jié)小標(biāo)題，定位可能含有所需細(xì)節(jié)信息的部分； (綜合原查讀和略讀第二步 ) d．快速通讀已經(jīng)定位的段落，找出與題目相關(guān)的句子確定答案； (原查讀第三步 ) e．對蘊(yùn)含全文觀點(diǎn)的段落進(jìn)行細(xì)讀，判斷作者態(tài)度并進(jìn)行邏輯推理，完成推論題。 3) 綜合步驟 快速閱讀題不僅需要我們通過查讀方法來