23. An important property of a scientific theory is its ability to _____ further research and further thinking about a particular topic. A. stimulate B. renovate C. arouse D. advocate stimulate 刺激

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新东方赵丽词汇课堂 Lesson 141

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新东方赵丽词汇课堂 Lesson 149

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新东方赵丽词汇课堂 Lesson 142

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新东方赵丽词汇课堂 Lesson 147

27. The 215-page manuscript, circulated to publisher last October, _____ an outburst of interest. A. flared B. glittered C. sparked D. flashed spark 闪烁，闪光 outburst 爆发，爆炸 spark 引起

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新东方赵丽词汇课堂 Lesson 148

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新东方赵丽词汇课堂 Lesson 145

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新东方赵丽词汇课堂 Lesson 146

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新东方赵丽词汇课堂 Lesson 144

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新东方背诵文选 L31 British Columbia

British Columbia is the third largest Canadian provinces, both in area and population. It is nearly 1.5 times as large as Texas, and extends 800 miles(1,280km) north from the United States border. It

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新东方背诵文选 L32 Botany

Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For many thousands of years it was the one field of awareness about which humans had anything more than the

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新东方背诵文选 L39 The Salinity of Ocean Waters

If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause

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新东方背诵文选 L35.Oil Refining

An important new industry, oil refining, grew after the Civil war. Crude oil, or petroleum - a dark, thick ooze from the earth - had been known for hundreds of years, but little use had ever been made

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新东方背诵文选 L38 Topaz

Topaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Gem topaz is valuable. Jewelers call this variety of the stone

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新东方背诵文选 L33 Plankton浮游生物.

Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They drift about lazi

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新东方背诵文选 L40 Cohesion-tension Theory

Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. U

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新东方背诵文选 L34 Raising Oysters

In the oysters were raised in much the same way as dirt farmers raised tomatoes- by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then

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新东方背诵文选 L37 Icebergs

Icebergs are among nature's most spectacular creations, and yet most people have never seen one. A vague air of mystery envelops them. They come into being ----- somewhere ------in faraway, frigid wat

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新东方背诵文选 L30 The origin of Refrigerators

By the mid-nineteenth century, the term

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新东方背诵文选 L24．Piano

The ancestry of the piano can be traced to the early keyboard instruments of the fifteenth and sixteenth centuries --- the spinet, the dulcimer, and the virginal. In the seventeenth century the organ,

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