如果将句子中省略的部分加完整为:
Manufacturinggroupsareparticularlyupbeat,withthreetimesasmanycompaniesexpectingincreasedactivity(as)foreveryonethatfears(that)activitywillfall.
Manufacturinggroups是主语.are是系动词,particularlyupbeat是表语.意思是有上涨趋势,而最后的fall有减少的意思,
主句是Manufacturinggroupsareparticularlyupbeat,withthreetimesasmanycompanies(as)foreveryone
后面是with引导的比较状语,是companiesexpectingincreasedactivity与everyonethatfearsactivitywillfall比较,前者是后者的3倍.expectingincreasedactivity现在分词作定语修饰companies,其中increased是过去分词形容词用法,修饰activity
everyonethatfearsactivitywillfall其中thatfears(that)activitywillfall为定语从句,由于从句主语为everyone(与修饰内容相同)所以省略,fears为从句谓语动词,activitywillfall宾语从句,为fears害怕的内容.
整句意思是:
制造业集团尤其乐观(尤其有上涨的趋势),其中认为会增加活动的公司是所有害怕活动会减少的公司数量的3倍.