托?？碱}出處：OG

Paragraph 6: Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and overirrigation. The cultivation of crops has expanded into?progressively?drier regions as population densities have grown. These regions are especially likely to have periods of severe dryness, so that crop failures are common. Since the raising of most crops necessitates the prior removal of the natural vegetation, crop failures leave extensive tracts of land devoid of a plant cover and susceptible to wind and water erosion. 【OG- Desert Formation】

5. The word “progressively” in the passage is closest in meaning to

A.openly

B.impressively

C.objectively

D.increasingly

正確答案：D

托?？碱}出處：TPO44

Paragraph 4: What ecological pressures might have caused fishes to gradually abandon their watery habitat and become increasingly land-dwelling creatures? Changes in climate during the Devonian may have had something to do with this if freshwater areas became?progressively?more restricted. Another impetus may have been new sources of food. The edges of ponds and streams surely had scattered dead fish and other water-dwelling creatures. ■In addition, plants had emerged into terrestrial habitats in areas near streams and ponds, and crabs and other arthropods were also members of this earliest terrestrial community. ■Thus, by the Devonian the land habitat marginal to freshwater was probably a rich source of protein that could be exploited by an animal that could easily climb out of water. ■ Evidence from teeth suggests that these earliest tetrapods did not utilize land plants as food; they were presumably carnivorous and had not developed the ability to feed on plants. ■【TPO-44- From Fish to Terrestrial Vertebrates】

8. The word “progressively” in the passage is closest in meaning to:

A. increasingly

B. noticeably

C. occasionally

D. rapidly

正確答案：A

progressively詳細(xì)解析

1.progressively [pr??ɡres?vli] adv. 前進(jìn)地；日益增加地； 逐步

TOEFL例句：In the 1840s American geologist James Daly observed that the different Hawaii islands seem to share a similar geologic evolution but are progressively more eroded, and therefore probable older, toward the northwest.——TPO-27: The Formation of Volcanic Islands

在18世紀(jì)40年代，地質(zhì)學(xué)家James Daly觀察到不同的夏威夷島嶼看起來經(jīng)歷了相似的演變過程，但它們所受腐蝕一個比一個嚴(yán)重，所以越往西北方向的島嶼形成時間可能越早。

GRE例句：Over the years I have become progressively disenchanted about the centrality of such knowledge and have come to believe that much current work in political socialization, by relying too heavily on its apparent acquisition, has been misled about the tempo of political understanding in adolescence.——GRE No.4-1, Section A

在過去幾年中，我對這種知識的中心主導(dǎo)地位已越來越不抱幻想，反之，我已趨于相信，目前相當(dāng)一部分有關(guān)政治社會化的研究工作由于過分依賴于表面，已經(jīng)對青少年政治認(rèn)識的節(jié)奏產(chǎn)生誤導(dǎo)。

詞根詞綴記憶：pro-gress-ive-ly

pro-=forward，如“producer”（制造商；生產(chǎn)商）（TPO-12： Transition to Sound in Film）

gress=walk，如“aggressive”（侵略的；侵犯的）（TPO-17: Animal Signals in the Rain Forest）

-ive*形容詞后綴，如“constructive”（建設(shè)性的）（OG: Geology and Landscape）

-ly*副詞后綴，大多接于形容詞后面，如“continually”（不停地；持續(xù)地）（OG: Geology and Landscape）

以上內(nèi)容來自：《新托福千詞百練》

2.progressively 英 [pr??gres?vli] 美 [pr??ɡr?s?vl?]

adv. 逐步;前進(jìn)地，日益增加地

1).ADJ-GRADED 進(jìn)步的；先進(jìn)的；革新的 Someone who is progressive or has progressive ideas has modern ideas about how things should be done, rather than traditional ones.

例句：...a progressive businessman who had voted for Roosevelt in 1932 and 1936...在1932年和1936年投票支持羅斯福的開明商人

2).ADJ （變化等）逐漸的，逐步發(fā)生的，逐步發(fā)展的 A progressive change happens gradually over a period of time.

例句：One prominent symptom of the disease is progressive loss of memory.這種疾病的一個顯著癥狀就是記憶逐漸喪失。

以上內(nèi)容來自：《柯林斯詞典》

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