分词作状语时,其逻辑主语一般就是句子的主语。如: Having many good properties,aluminium iswidely used in industry.(铝具有许多优良性质,所以在工业上用得很广。) 但在科技英语中也会见到一些作状语的分词短语,它们的逻辑主语并不归属于句子的主语。这就是所谓无归属分词。我们先分析上期阅读材料中两个句子。 The current trend is to provide instructionsdirectly from a computer,thereby eliminatingthe wear and tear on tapes,tape readers,and ta-keupreels.[从意义上看,分词eliminating的逻辑主语是前面句子的表语部分to provide instructions When the participle is an adverbial, the logical subject is generally the subject of the sentence. (There are many good properties of aluminum, so it is widely used in industry.) However, some technical adverbial phrases are also found in scientific English, and their logical subject Subject not attributable to the sentence. This is the so-called non-belonging clause. Let’s analyze two sentences in the previous reading. The current trend is to provide instructions from a computer, whereby eliminating the wear and tear on the tapes, tape readers, and ta-keupreels. [In the sense of the word, the logical subject of the word eliminating is the epilogue part of the preceding sentence to provide instructions