托福阅读中表达句子间关系的词汇集锦

　Astronomy is a science that deals with all the celestial bodies in the universe. Astronomy includes the study of planets and their satellites, comets and meteors, stars and interstellar matter, star systems and clusters. (后一句是对前一句celestial bodies 的进一步解释)

　　Previously it was believed that due to the Archaeopteryx’s (始祖鸟) underdeveloped anatomy, it would not have been able to fly. However, research by the London Natural History Museum into its brain developed and that it had good vision and a good sense of balance — all the requirements for a creature to be able to fly. (“However”转折对比)

　　阅读时，我们可以根据段落中出现的一些信号词(Signal Words)来判断句子与句子之间的关系，掌握段落发展线索，来调整阅读速度，提高阅读质量。

　　1.显示顺序的信号词：

　　Internet speeds communication between companies, among co-workers through video-conferences, and among other individuals. First, media companies use the Internet for online news, or to broadcast audio and video, including live radio and television programs, while individuals use the Internet for communication, entertainment, finding information, buying and selling goods and services. Second, the notion of distance disappears thanks to the Internet. People also enjoy instant messaging to exchange text messages or pictures in real time, with real-time video and sound. Finally, scientists and scholars use the Internet to perform research, distribute lecture notes or course materials to students, they communicate with colleagues, and can also publish papers and articles.

　　抓住了这样的信号词就把握住了作者叙述的顺序，也就分清了相对独立的论据。这样的信号词包括：

　　first, second, third, and so on, then, after, before, next, last, afterward, finally

　　2.显示思路转折的信号词

　　I’d like to go but I’m too busy.

　　“but”前后是完全不同的信息描述，它向读者显示了作者的思路在这里有了转折。阅读时，碰到这样的信号词我们需放慢阅读速度，以准确获取作者真正想要说明的意思。这类信号词还有：

　　although, however, on the contrary, but, in spite of, otherwise, despite, nevertheless, yet

　　了解更多关于托福方面的知识，请访问上海托福培训学校