如果將句子中省略的部分加完整為：
Manufacturing groups are particularly upbeat,with three times as many companies expecting increased activity (as) for every one that fears （that）activity will fall.
Manufacturing groups 是主語.are 是系動詞,particularly upbeat是表語.意思是 有上漲趨勢,而最后的 fall 有減少的意思,
主句是Manufacturing groups are particularly upbeat,with three times as many companies (as) for everyone
后面是 with引導(dǎo)的比較狀語,是 companies expecting increased activity 與 every one that fears activity will fall 比較,前者是后者的3倍.expecting increased activity 現(xiàn)在分詞作定語修飾 companies,其中 increased 是過去分詞形容詞用法,修飾 activity
everyone that fears activity will fall 其中 that fears （that）activity will fall 為定語從句,由于從句主語為everyone （與修飾內(nèi)容相同）所以省略,fears 為從句謂語動詞,activity will fall 賓語從句,為 fears 害怕的內(nèi)容.
整句意思是：
制造業(yè)集團(tuán)尤其樂觀（尤其有上漲的趨勢）,其中認(rèn)為會增加活動的公司是所有害怕活動會減少的公司數(shù)量的3倍.