本文目录
托福阅读题pollination答案
60. Traditionally, pollination by wind has Traditionally, pollination by wind has been viewed as a reproductive process marked by random events in which the vagaries of the wind are compensated for by the generation of vast quantities of pollen, so that the ultimate production of new seeds is assured at the expense of producing much more pollen than is actually used. Because the potential hazards pollen grains are subject to as they are transported over long distances are enormous, wind-pollinated plants have, in the view above, compensated for the ensuing loss of pollen through happenstance by virtue of producing an amount of pollen that is one to three orders of magnitude greater than the amount produced by species pollinated by insects. However, a number of features that are characteristic of wind-pollinated plants reduce pollen waste. For example, many wind-pollinated species fail to release pollen when wind speeds are low or when humid conditions prevail. Recent studies suggest another way in which species compensate for the inefficiency of wind pollination. These studies suggest that species frequently take advantage of the physics of pollen motion by generating specific aerodynamic environments within the immediate vicinity of their female reproductive organs. It is the morphology of these organs that dictates the pattern of airflow disturbances through which pollen must travel. The speed and direction of the airflow disturbances can combine with the physical properties of a species’ pollen to produce a species-specific pattern of pollen collision on the surfaces of female reproductive organs. Provided that these surfaces are strategically located, the consequences of this combination can significantly increase the pollen-capture efficiency of a female reproductive organ. A critical question that remains to be answered is whether the morphological attributes of the female reproductive organs of wind-pollinated species are evolutionary adaptations to wind pollination or are merely fortuitous. A complete resolution of the question is as yet impossible since adaptation must be evaluated for each species within its own unique functional context. However, it must be said that, while evidence of such evolutionary adaptations does exist in some species, one must be careful about attributing morphology to adaptation. For example, the spiral arrangement of scale-bract complexes on ovule-bearing pine cones, where the female reproductive organs of conifers are located, is important to the production of airflow patterns that spiral over the cone’s surfaces, thereby passing airborne pollen from one scale to the next. However, these patterns cannot be viewed as an adaptation to wind pollination because the spiral arrangement occurs in a number of non-wind-pollinated plant lineages and is regarded as a characteristic of vascular plants, of which conifers are only one kind, as a whole. Therefore, the spiral arrangement is not likely to be the result of a direct adaptation to wind pollination. 21. The author of the passage is primarily concerned with discussing (A) the current debate on whether the morphological attributes of wind-pollinated plants are evolutionary adaptations (B) the kinds of airflow patterns that permit wind-pollinated plants to capture pollen most efficiently (C) the ways in which the reproductive processes of wind-pollinated plants are controlled by random events (D) a recently proposed explanation of a way in which wind-pollinated plants reduce pollen waste (E) a specific morphological attribute that permits one species of wind-pollinated plant to capture pollen 22. The author suggests that explanations of wind pollination that emphasize the production of vast quantities of pollen to compensate for the randomness of the pollination process are (A) debatable and misleading (B) ingenious and convincing (C) accurate but incomplete (D) intriguing but controversial (E) plausible but unverifiable 23. According to the passage, the “aerodynamic environments” mentioned in line 23, when they are produced, are primarily determined by the (A) presence of insects near the plant (B) physical properties of the plant’s pollen (C) shape of the plant’s female reproductive organs (D) amount of pollen generated by the plant (E) number of seeds produced by the plant 24. According to the passage, true statements about the release of pollen by wind-pollinated plants include which of the following? I. The release can be affected by certain environmental factors. II. The amount of pollen released increases on a rainy day. III. Pollen is sometimes not released by plants when there is little wind. (A) II only (B) III only (C) I and II only (D) I and III only (E) I, II, and III 25. The passage suggests that the recent studies cited in lines 19-21 have not done which of the following? (A) Made any distinctions between different species of wind-pollinated plants. (B) Considered the physical properties of the pollen that is produced by wind-pollinated plants. (C) Indicated the general range within which plant-generated airflow disturbances are apt to occur. (D) Included investigations of the physics of pollen motion and its relationship to the efficient capture of pollen by the female reproductive organs of wind-pollinated plants. (E) Demonstrated that the morphological attributes of the female reproductive organs of wind-pollinated plants are usually evolutionary adaptations to wind pollination. 26. It can be inferred from the passage that the claim that the spiral arrangement of scale-bract complexes on an ovule-bearing pine cone is an adaptation to wind pollination would be more convincing if which of the following were true? (A) Such an arrangement occurred only in wind-pollinated plants. (B) Such an arrangement occurred in vascular plants as a whole. (C) Such an arrangement could be shown to be beneficial to pollen release. (D) The number of bracts could be shown to have increased over time. (E) The airflow patterns over the cone’s surfaces could be shown to be produced by such arrangements. 27. Which of the following, if known, is likely to have been the kind of evidence used to support the view described in the first paragraph? (A) Wind speeds need not be very low for wind-pollinated plants to fail to release pollen. (B) The female reproductive organs of plants often have a sticky surface that allows them to trap airborne pollen systematically. (C) Grasses, as well as conifers, generate specific aerodynamic environments within the immediate vicinity of their reproductive organs. (D) Rain showers often wash airborne pollen out of the air before it ever reaches an appropriate plant. (E) The density and size of an airborne pollen grain are of equal importance in determining whether that grain will be captured by a plant. 答案：DCCDE AD
哪里有卖托福答案
记笔记，听关键词本身只是治标不治本，或者说它是一种镜花水月看得见摸不到的方法，因为听关键词本身，其实也是对于实力有要求的。而且在你听力实力真的达到了26分以上的时候，你才会发现，其实所谓的听关键词，只是那些实力已经很好的人才能有的一个特权，但是当你实力不好的时候，一切都只是空谈。到TPO小站上个课程，可以帮助你提高听说读写各科成绩哦！
托福答案，非常需要，谢谢推荐
好的北美托福答案并不是多，马克托福答案是目前所知好的，出答案速度快，阅读听力30+29，身边准备出国的同学基本都有和马克托福答案接触过，有没有购买他们的服务项目倒是不清楚，只知道平时英语一般般的，后来也能拿到105，这种高分对托福考生吸引力还是蛮大的。作文听说是原创定制，这点比一般机构强势得多。
托福答案可以买嘛
托福答案是不靠谱的，买考试答案本身就是一种作弊的行为，且不说答案的真假，即使侥幸取得了高分，会有以下两种情况：一、如果被人举报，那么这种作弊行为会被美国大学视为不诚信行为，会严重影响大学申请（学校基本不会接受申请）；二、入学后，学校发现学生的能力与之前所考分数严重不符，可能会“翻旧账”，一旦查出，后果严重。
详解如何解答托福阅读指代关系题
托福阅读 教你如何解答指代关系题在托福阅读的题型中除了简化题、词汇题以外，指代关系题(Reference)也是一种经常会出现的题型。指代关系题主要考查读者认定代词与篇章中其他词语的指代关系的能力。下面将几个例子中，为大家详解如何解答托福阅读中的指代关系题。例题1：Passage: “…These laws are universal in their application, regardless of cultural beliefs, geography, or climate. If pots have no bottoms or have large openings in their sides, they could hardly be considered containers in any traditional sense. Since the laws of physics, not some arbitrary decision, have determined the general form of applied-art objects, they follow basic patterns, so much so that functional forms can vary only within certain limits…”The word they in the passage refers toA. applied-art objectsB. the laws of physicsC. containersD. the sides of pots正确答案是A。例题2：Passage：“…The first weekly newspaper in the colonies was the Boston Gazette,established in 1719, the same year that marked the appearance of Philadelphia’s first newspaper, the American Mercury, where the young Benjamin Franklin worked. By 1760 Boston had 4 newspapers and 5 other printing establishments; Philadelphia, 2 newspapers and 3 other presses; and New York, 3 newspapers. The distribution, if not the sale, of newspapers was assisted by the establishment of a postal service in 1710, which had a network of some 65 offices by 1770, serving all 13 colonies…”The word which in the passage refers toA. distributionB. saleC. newspaperD. postal service正确答案是D。指代关系题只是托福阅读中的一种，想要成功冲击托福阅读就要对简化题、词汇题、指代关系题等等各类题型都有充分的了解。
托福网考后出不出答案
托福考试一般是不出答案的因为如果出答案就意味着试题的公开，这是不可能的，托福考试存在着大量的试题的重复使用，所以不可能把题目公开，同时为防止这种试题外泄的情况，考试之前会签保密协议，但是，可能对某些人来讲那就是一张废纸，呵呵，所以就有了机经的出现，但是，机经也都是考生回忆出来的，准确率有待加强。。。
托福答案大概多少钱
据我了解价钱大概在五千到两万不等。因为托福考试全球都是同一天考试，但是因为时差美国比我们早半天考试，卖家会同时安排几个英语老师去美国进行考试，并在考试结束后将答案记下，用邮件等方式发到你的邮箱，他们大多只保证你的阅读听力部分的正确性，部分卖家还会确保答案的正确，保证不得分不收钱。有些卖家的答案的确是可靠的，但是你也同样承担着巨大的风险，很多骗子们抓住了考生的软肋对其进行诈骗，而就算你买到了真正的答案，在美国一旦被发现会受到严重的惩罚，轻则成绩作废，重则禁考劝退。有志者事竟成希望你能凭借自己的努力考到理想的大学。
托福答案，哪里有
回答这种问题默认题主想要找的是托福答案提供机构，类似机构我所知道只有马克托福答案了，原谅我没那么多时间出去走走，还有可能是其它机构真心做得不怎么样。马克托福答案的态度非常和善，在出答案时间上，马克托福答案优势一直显著，基本将其它机构置于脑后。托福答案质量上，马克托福答案的听力和阅读基本上是能够保重高分通过的，努力一点双26+压力不大，看你的答案复习程度了。
