難句解析：
①International affiliates account for a fast-growing segment of production in economies that open up and welcome foreign investment.
▲本句的主干是International affiliates account for a fast-growing segment of production in economies，后面的that open up and welcome foreign investment是economies的定語從句。
△注意一些詞匯的含義：affiliate名詞，意為“分支機(jī)構(gòu)”，此處是指在世界各地都有分支的多國公司，并且是全句的主語；account for是……的原因；economies在此處指經(jīng)濟(jì)領(lǐng)域的國家概念，因此用復(fù)數(shù)。
②This phenomenon has created serious concerns over the role of smaller economic firms, of national businessmen and over the ultimate stability of the world economy.
▲of smaller economic firms與of national businessmen都是the role的補(bǔ)語；而over the role of smaller economic firms，of national businessmen與over the ultimate stability of the world economy都與concern相關(guān)連，是其補(bǔ)語。
△本句的重點(diǎn)在于看好concerns后面的結(jié)構(gòu)，注意over the role與over the ultimate stability并列，而the role的后面有兩個并列的of結(jié)構(gòu)。
③I believe that the most important forces behind the massive M&A wave are the same that underlie the globalization process: falling transportation and communication costs, lower trade and investment barriers and enlarged markets that require enlarged operations capable of meeting customers' demands.
▲本句主語為I，謂語為believe，that引導(dǎo)了believe的賓語從句，其中的又一個that可替換為as the ones that，是一個定語從句。冒號后面的部分是the most important forces的同位語，其中markets后面的that從句是markets的定語，capable of meeting customers' demands是operations的補(bǔ)語。
△underlie在下面，作基礎(chǔ)；barriers障礙物，壁壘；operations經(jīng)營運(yùn)作；meet sb's demands滿足某人需求。
④And should one country take upon itself the role of "defending competition" on issues that affect many other nations, as in the U.S. vs. Microsoft case?
▲此句的主干是should one country take upon itself the role，而that affect many other nations是issues的定語從句。as in the US vs. Microsoft case是issues的補(bǔ)語。on issues是take upon itself the role的狀語。
△注意本句在閱讀的時候要抓住它本身是一個文句，另外，vs.的意思對正確理解也很重要，它是指“對壘，對陣”，在法律的情景中就是“起訴，對簿公堂”的意思。
來源:可可英語 http://www.ccdyzl.cn/kaoyan/201405/300829.shtml