逻辑上的纽带——过渡词/转折词
附加并列：in addition first second third
对比：however but in contrast
举例：for example
因果：because due to
强调：clearly indeed in fact surely
语法上的纽带——插入句子前后语法时态保持一致
词汇上的纽带——代词（指代一直）
例1 Above the tree line there is a zone that is generally called alpine tundra高山苔原. █Immediately adjacent to the timberline, the tundra consists of a fairly complete cover of low-lying shrubs, herbs, and grasses, while higher up the number and diversity of species decrease until there is much bare ground with occasional mosses and lichens and some prostrate cushion plants.█Some plants can even survive in favorable microhabitats above the snow line. The highest plants in the world occur at around
6,100 meters on Makalu in the Himalayas.█At this great height, rocks, warmed by the sun, melt small snowdrifts.█
Look at the four squares [█] that indicate where the following sentence could be added to the passage.
This explains how, for example, alpine cushion plants have been found growing at an altitude of 6,180 meters.
Where would the sentence best fit? Click on a square to add the sentence to the passage.
例2、█Modern architectural forms generally have three separate components comparable to elements of the human body; a supporting skeleton or frame, an outer skin enclosing the interior spaces, equipment, similar to the body’s vital organs and systems. █The equipment includes plumbing, electrical wiring, hot water, and
air-conditioning. █Of course in early architecture—such as igloos and adobe structures—there was no such equipment, and the skeleton骨架and skin were often one.█
Look at the four squares [█] that indicate where the following sentence could be added to the passage.
However, some modern architectural designs, such as those using folded plates of concreter or air-inflated structures, are again unifying skeleton and skin.
Where would the sentence best fit? Click on a square to add the sentence to the passage.。