當談?wù)摰?hellip;…問題時，大多數(shù)人認為……，但是有些人爭論說……
點睛本句是典型的議論文的開頭，是表達兩種截然對立的觀點的句型。when it comes to...后面必須接名詞或者動名詞，表示“當提及／談?wù)?hellip;…時”。如：recycling（回收利用），banning fireworks（禁止燃放煙花爆竹），market economy（市場經(jīng)濟），human right（人權(quán)），trade protection（貿(mào)易保護）等。本句型應(yīng)當注意的是：后兩個省略號處都有that，其后應(yīng)接賓語從句，因此在替換的時候應(yīng)當注意句子結(jié)構(gòu)的完整性。
句型拓展When people talking about saving water, most of them believe that the government should take the major responsibility; others think that people waste water in their daily lives and cause water shortages, and therefore commoners should take the main responsibility. 當人們談?wù)摰焦?jié)水問題時，大多數(shù)人都認為政府應(yīng)該承擔(dān)主要責(zé)任，而有些人則認為，是老百姓在生活中浪費水而導(dǎo)致了水資源短缺，因而他們應(yīng)該承擔(dān)主要責(zé)任。
Most people think that physical exercises are necessary for our health, but others regard it luxury since nowadays most office men and office ladies take exercises in the gym which charges a lot. 大多數(shù)人認為體育鍛煉對于我們的健康是必要的，而有些人則認為鍛煉是奢侈的行為，因為如今很多白領(lǐng)男女都在健身房鍛煉，而那里收費很高。
