托福阅读分类词汇精选：生物学类

楚薇2分享 2024-02-18 06:51:51

托福阅读备考需要积累许多词汇才能读懂文章，为了帮助大家备考生物类的阅读文章，下面小编给大家带来托福阅读分类词汇精选：生物学类，希望对大家有所帮助1

托福阅读分类词汇精选：生物学类

chlorophyll 叶绿素

amino acids 氨基酸

protein 蛋白质

nitrogen 氮

photosynthetic(adj.) photosynthesis(n.) 光合作用

botany植物学

botanist 植物学家

lichen 地衣，苔藓

fungus(pl. fungi ) 菌类

algae(pl. alga) 海藻

bacterium(pl.bacteria)　细菌

organism 有机物

rodent 啮齿类动物

primate 灵长类动物

mammal 哺乳类动物

reptile 爬行类动物

predator 捕食者

prey 被捕食者

acquatic 水生的

artery 动脉

vein 静脉

fingernail 指甲

scale 鳞片

claw 爪子

horn 角

nourish 滋养，供给……营养

clam 蚌

crab 虾

beaver 狸

pond 池塘

puddle 水坑

snail 蜗牛

shrimp 虾

hormone 荷尔蒙

intestine 肠

corn 谷物

squash 南瓜

bean 豆类植物

nectar花蜜

pollen花粉

hive 蜂巢

moss 苔藓

hibernate 冬眠

penguin 企鹅

reef 礁

coral 珊瑚

beak 鸟嘴

enzymes 酵母

larvae 幼虫

tadpole 蝌蚪

caterpillar 毛虫

grasshopper 蚱蜢

toad 蟾蜍

herbicide 除草剂

secretion(n.) secrete(v.) 分泌

pancreas 胰腺

odor 气味

roe 鱼卵

caviar 鱼子酱

raccoon 浣熊

gland 腺体

cricket 蟋蟀

托福阅读的做题策略分析

从题型来看，TOEFL阅读的特点是题量大，涉及的词汇面广。要想考好阅读，要求考生不光有扎实的英语基础，还需要精准的做题策略。

第一步：花两三分钟时间扫描每篇文章头一两个句子，做一个简短的scanning，定位文章难易程度，以及了解文章大致主题。虽然平均每篇文章做题时间为11分钟，但是有的文章七八分钟便可以轻松对付，有的文章则需要15分钟左右，所以这其中的时间安排就需要考生自主调节。一般来说，5篇文章中有2篇难度大一些，按部就班做题就有可能因时间不够而做错好几道题甚至是来不及做，带来巨大的损失。因此首先定位文章难易程度，同时目测文章的题量分布，这有助于科学分配阅读部分的做题时间，是非常必要的。

第二步：通过阅读文章结构来进一步进行scanning。所谓结构，即文章的骨架子。 TOEFL文章涉及人文社科和自然科学，大多是结构明确的议论文、说明文，它们最显著的特点是呈板块结构。 TOEFL文章均由数个自然段组成，正确的阅读文章的方法应该是把文章首句先吃透，文章首句经常为文章主题，然后把首段的其他句子尽快略读，文章其他段落采取同样的方法阅读。各段落其他句子一般来说都是用来说明各个段落的主题句，同时也应该看一下第二句，如果有转折词，则此时第二句才是这一段的主旨。没有必要每个句子都理解，很多时候这样做无疑是白白浪费时间。以最快捷的方式了解文章大意，从而正确引导下一步做具体的题，而不至于出现大方向的理解错误。而自始至终考生应该遵循这条原则：看完文章，才能开始做题。

做题时，考生们应该明白以下道理：

1、有据可循。每篇文章题目都根据文章布局一步一步向前推进，即使有个别题打乱文章布局，在题干里总是有提供信息的关键词将考生带入文章的具体部位。

2、回归原文。做题时，根据题干或选项的关键词回归文章寻找重现关键词或其释义的语言区域，同时排除相应的选项。

3、整句分析。遇到难句子时，应该对其进行句子结构分析，排除修饰成分，寻找主干部分，从而迅速把握整个句子的意思，不要盯着单个的词不放，不然就会因小失大。

4、基于事实。每个问题的四个选项或者是对文章中相关部分的正确释度、或者是歪曲原文、或者与原文毫不相干。换句话说，命题专家在设置试题时会玩一些文字游戏，用各种表达形式让考生晕头转向、雾里看花。考生应该明白自己的职责是辨别真伪，找到符合文章意思和题意的选项。

托福阅读真题训练1

Fungi, of which there are over 100,000 species, including yeasts and other single-celled organisms as well as the common molds and mushrooms, were formerly classified as members of the plant kingdom. However, in reality they are very different from plants and today they are placed in a separate group altogether. The principal reason for this is that none of them possesses chlorophyll, and since they cannot synthesize their own carbohydrates, they obtain their supplies either from the breakdown of dead organic matter or from other living organisms. Furthermore the walls of fungal cells are not made of cellulose, as those of plants are, but of another complex sugarlike polymer called chitin, the material from which the hard outer skeletons of shrimps, spiders, and insects are made. The difference between the chemical composition of the cell walls of fungi and those of plants is of enormous importance because it enables the tips of the growing hyphae, the threadlike cells of the fungus, to secrete enzymes that break down the walls of plant cells without having any effect on those of the fungus itself. It is these cellulose-destroying enzymes that enable fungi to attack anything made from wood, wood pulp, cotton, flax, or other plant material.

The destructive power of fungi is impressive. They are a major cause of structural damage to building timbers, a cause of disease in animals and humans, and one of the greatest causes of agricultural losses. Entire crops can be wiped out by fungal attacks both before and after harvesting. Some fungi can grow at +50 C, while o°thers can grow at -5 C, so ev°en food in cold storage may not be completely safe from them. On the other hand, fungi bring about the decomposition of dead organic matter, thus enriching the soil and returning carbon dioxide to the atmosphere. They also enter into a number of mutually beneficial relationships with plants and other organisms. In addition, fungi are the source of many of the most potent antibiotics used in clinical medicine, including penicillin.

1. What does paragraph 1 mainly discuss?

(A) differences between simple and complex fungi

(B) functions of chlorophyll in plants

(D) differences between fungi and plants

2. Which of the following is mentioned as a major change in how scientists approach the study of fungi?

(A) Fungi are no longer classified as plants

(B) Some single-cell organisms are no longer classified as fungi.

(D) Theories about the chemical composition of fungi have been revised.

3. The word principal in line 4 is closest in meaning to

(A) true

(B) main

(D) obvious

4. According to the passage , how do fungi obtain carbohydrates?

(A) The absorb carbohydrates from their own cell walls.

(B) They synthesize chlorophyll to produce carbohydrates.

(D) They acquire carbohydrates from other organic matter, both living and dead.

5. The passage mentions shrimps, spiders, and insects in line 9 because their skeletons

(A) can be destroyed by fungi

(B) have unusual chemical compositions

(D) secrete the same enzymes as the walls of fungal cells do

6. Which of the following terms is defined in the passage ?

(A) chlorophyll (line 5)

(B) polymer (line 8)

(D) enzymes (line 14)

7. The word those in line 13 refers to

(A) tips

(B) hyphae

(D) walls

8. Fungi have all of the following characteristics EXCEPT

(A) They grow hyphae.

(B) They secrete enzymes.

(D) They destroy crops.

9. The word Entire in line 18 is closest in meaning to

(A) certain

(B) whole

(D) diseased

10. The passage describes the negative effects of fungi on all the following EXCEPT

(A) buildings

(B) animals

(D) soil

11. The phrase bring about in line 21 is closest in meaning to

(A) cause

(B) join

(D) include

12. The passage mentions penicillin in line 25 as an example of

(A) a medicine derived from plants

(B) a beneficial use of fungi

(D) a type of fungi that grows at extreme temperatures.

托福阅读真题训练2

PASSAGE 16

The first flying vertebrates were true reptiles in which one of the fingers of the front limbs became very elongated, providing support for a flap of stretched skin that served as a wing. These were the pterosaurs, literally the winged lizards. The earliest pterosaurs arose near the end of the Triassic period of the Mesozoic Era, some 70 million years before the first known fossils of true birds occur, and they presumably dominated the skies until they were eventually displaced by birds. Like the dinosaurs, some the pterosaurs became gigantic; the largest fossil discovered is of an individual that had a wingspan of 50 feet or more, larger than many airplanes. These flying reptiles had large, tooth-filled jaws, but their bodies were small and probably without the necessary powerful muscles for sustained wing movement. They must have been expert gliders, not skillful fliers, relying on wind power for their locomotion.

Birds, despite sharing common reptilian ancestors with pterosaurs, evolved quite separately and have been much more successful in their dominance of the air. They are an example of a common theme in evolution, the more or less parallel development of different types of body structure and function for the same reason — in this case, for flight. Although the fossil record, as always, is not complete enough to determine definitively the evolutionary lineage of the birds or in as much detail as one would like, it is better in this case than for many other animal groups. That is because of the unusual preservation in a limestone quarry in southern Germany of Archaeopteryx, a fossil that many have called the link between dinosaurs and birds. Indeed, had it not been for the superb preservation of these fossils, they might well have been classified as dinosaurs. They have the skull and teeth of a reptile as well as a bony tail, but in the line-grained limestone in which these fossils occur there are delicate impressions of feathers and fine details of bone structure that make it clear that Archaeopteryx was a bird. All birds living today, from the great condors of the Andes to the tiniest wrens, trace their origin back to the Mesozoic dinosaurs.

1. What does the passage mainly discuss?

(A) Characteristics of pterosaur wings

(B) The discovery of fossil remains of Archaeopteryx

(D) The development of flight in reptiles and birds

2. Which of the following is true of early reptile wings?

(A) They evolved from strong limb muscles.

(B) They consisted of an extension of skin.

(D) They required fingers of equal length.

3. The word literally in line 3 is closest in meaning to

(A) creating

(B) meaning

(D) simplified

4. It can be inferred from the passage that birds were probably dominant in the skies

(A) in the early Triassic period

(B) before the appearance of pterosaurs

(D) before dinosaurs could be found on land.

5. The author mentions airplanes in line 8 in order to

(A) illustrate the size of wingspans in some pterosaurs

(B) compare the energy needs of dinosaurs with those of modern machines

(D) establish the practical applications of the study of fossils

6. The word They in line 10 refers to

(A) powerful muscles

(B) bodies

(D) flying reptiles

7. According to the passage , pterosaurs were probably not skillful fliers (lines 10-11) because

(A) of their limited wingspan

(B) of their disproportionately large bodies

(D) climate conditions of the time provided insufficient wind power

8. In paragraph 2, the author discusses the development of flight in birds as resulting from

(A) a similarity in body structure to pterosaurs

(B) an evolution from pterosaurs

(D) a separate but parallel development process to that of pterosaurs

9. The word classified in line 21 is closest in meaning to

(A) perfected

(B) replaced

(D) protected

10. Which of the following helped researchers determine that Archaeopteryx was not a dinosaur?

(A) Its tail

(B) Its teeth

(D) Details of its bone structure

11. What is the significance of the discovery that was made in southern Germany?

(A) It is thought to demonstrate that birds evolved from dinosaurs.

(B) It is proof that the climate and soils of Europe have changed over time.

(D) It supports the theory that Archaeopteryx was a powerful dinosaur.

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