GRE閱讀長難句重磅解析(31)
unless they succeed,the yield gains of the green revolution will be largely lost even if the genes in legumes that equip those plants to enter into a symbiosis with nitrogen fixers are identified and isolated,and even if the transfer of those gene complexes,once they are found, becomes possible. (4)
除非他們能取得成功,不然的話,綠色革命的產(chǎn)量收益將在很大程度上損失殆盡,即使豆科植物中使這些植物有條件進(jìn)入到與固氮細(xì)菌共生關(guān)系的基因可被辨識出來和分離開來的話,且即使這些基因綜合體(gene complex),一旦被發(fā)現(xiàn)之后,其移植得以成為可能的話。
難句類型:
復(fù)雜修飾、插入語
解釋:
主句比較簡單,而后面跟著的由and連接的兩個表示讓步的條件狀語從句就相對復(fù)雜,第一個從句是用一個修飾主語的定語從句that equip those plants to enter into a symbiosis with nitrogen fixers把主謂隔開;第二個從句則運(yùn)用了插入語once they are found把主謂隔開。
意群訓(xùn)練:
unless they succeed,the yield gains of the green revolution will be largely lost even if the genes in legumes that equip those plants to enter into a symbiosis with nitrogen fixers are identified and isolated,and even if the transfer of those gene complexes,once they are found, becomes possible.