7．China used 1.2 million tons of coal for heating and gneratingelectricity last year．

分析 中國(guó)去年用了120萬(wàn)噸的煤來(lái)供暖和發(fā)電．

解答 generating     generate是一個(gè)動(dòng)詞，意為"形成，造成；產(chǎn)生（能量），發(fā)（電）"，通過(guò)前面部分used 1.2 million tons of coal （用煤）可知，是用來(lái)發(fā)電的，generate electricity意為"發(fā)電"，又因?yàn)榍懊嬗薪樵~for，heat和generate作為for的兩個(gè)并列賓語(yǔ)，都要加ing，故填generating．

點(diǎn)評(píng) 考查動(dòng)詞的詞義，在熟記單詞詞義的基礎(chǔ)上還要聯(lián)系語(yǔ)境，從而寫(xiě)出正確答案，寫(xiě)動(dòng)詞時(shí)還要注意其人稱(chēng)、時(shí)態(tài)和語(yǔ)態(tài)的變化．

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