1. The word "drawback" in the passage is closest in meaning to 【词汇题】 A other side of the issue B objection C concern D problem 答案:D 解析:drawback 缺点,不利条件。在语境中的含义为“不利条件”。D选项的problem意为“问题,难题”,与drawback在这里的含义相符,故为正确答案。other side of the issue事情的另外一方面。 objection缺点,缺陷。 concern关心,关注。
2. Which of the following can be inferred from paragraph 1 about pollen production? 【推断题】 A Pollen production requires a significant investment of energy and resources on the part of the plant. B The capacity to produce pollen in large quantities is a recent development in the evolutionary history of plants. C Plants in the tropics generally produce more pollen than those in temperate zones. D The highest levels of pollen production are found in plants that depend on insects or birds to carry their pollen. 答案:A 解析:根据原文的wind is good at moving pollen a long way可以推断pollen production是需要energy的, 根据Pollen,…. is usually carried from plant to plant…可知, pollen production是需要resource的。故A选项正确。 B选项的说法无中生有。 C选项的比较关系在原文无法得出。 D选项对highest levels of pollen production的传播方式的说法也是无中生有的。
3. According to paragraph 1, wind-pollinated trees are most likely to be found 【事实信息题】 A in temperate forests B at lower latitudes C in the tropics D surrounded by trees of many different species 答案:A 解析:根据原文的For the relatively few… temperate forests… this is quite a safe gamble.此句中的this根据前文可知就是”风传播“,所以 wind-pollinated trees很有可能会在temperate forests里发现。
4. Paragraph 1 supports which of the following as the reason animals are a safer bet than wind as pollinators when the individual trees of a species are widely separated? 【事实信息题】 A Animals tend to carry pollen from a given flower further than the wind does. B Animals serve as pollinators even where there is little wind to disperse the pollen. C An animal that visits a flower is likely to deliberately visit other flowers of the same species and pollinate them. D Birds and insects fly in all directions, not just the direction the wind is blowing at a given moment. 答案:C 解析: C选项意为光顾某一种花的animals很有可能会光顾同一种花的另外一朵花并对其授粉。这完全可以构成题干的观点成立的理由之一。 A选项的further的说法无依据。 B选项并不能表明题干的safer的理由。 D选项的fly in all directions的说法无中生有。
5. In paragraph 1, the author compares pollen moved by wind with letters thrown off roofs in order to 【修辞目的题】 A explain why there are relatively few species of trees that depend on wind pollination B compare natural, biological processes with human social practices C make a point about the probability of wind-blown pollen reaching a tree of the same species D argue against the common assumption that the tallest trees are the most likely to employ wind pollination 答案:C 解析:原文的It is like trying to get a letter….的例子紧随Wind is very good at moving pollen a long… and only birds can get pollen anywhere near as far.的说法之后,就是为了说明前面的观点。即:风传播是有可能将花粉授予同一物种的。故C选项正确。
6. Paragraph 2 suggests that wind-pollinated plants do not have bright petals, nectar, and scent for which TWO of the following reasons? To receive credit, you must select TWO answers. 【双选题】 A They interfere with pollination by wind. B They are easily damaged by wind. C They are unnecessary. D They reduce the amount of pollen that can be produced. 答案:AC 解析:A选项的interfere with对应原文中的impediment。 C选项的unnecessary对应原文的insignificant-looking.
7. The word "respectively” in the passage is closest in meaning to 【词汇题】 A over time B separately C in that order D consistently 答案:B 解析:respectively意为“各自地”,B选项的separately意思为“分开地”,与separately是近义词,故B为正确选项。 over time 久而久之。 in that order以那样的顺序。 consistently一贯地,一致地。
8.According to paragraph 3, why do most deciduous wind-pollinated trees produce their pollen in the spring? 【事实信息题】 A To avoid competing with evergreen conifers, which flower in the fall or winter B So that the leaves of the trees receiving the pollen will not prevent the pollen from reaching the trees' stigmas C Because they do not have enough energy to produce new leaves and pollen at the same time D In order to take advantage of the windiest time of year 答案:B 解析:定位到原文Most deciduous wind-pollinated 。。。 to reduce the surrounding surfaces that “compete” with 他和stigmas for pollen. 此句中的目的状语to reduce。。。回答了题干的why提问, 即B选项为正确答案。
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