The point at which tool using and tool making acquire evolutionary significance is surely when an animal can adapt its ability to manipulate objects to a wide variety of purposes,and when it can use an object spontaneously to solve a brand-new problem that without the use of a tool would prove insoluble.
结构分析:句子的框架是The pointiswhenand when。两个when引导的从句为并列的表语从句。at which tool using and tool making acquire evolutionary significance为定语从句修饰主语the point;第二个when引导的表语从句中也有that引导的定语从句修饰a brand-new problem。ability to manipulate objects译为操纵物体的能力a brand-new problem that without the use of a tool would prove insoluble中without和insoluble为双重否定可译成肯定句。
译文:当一种动物能够使自己操纵物体的能力适用于更广泛的目标范围,并且能够自发地使用物体解决只有通过工具才能解决的崭新问题时,工具的使用和制造就肯定达到了具有进化意义的阶段。
2014届高三英语一轮单元复习训练:Modules 4~6综合技能测试(外研版必修1)
2014届高三英语一轮单元复习训练:Module 3 Literature(外研版选修7)
2014届高三英语一轮单元复习训练:Module 4 A Social Survey—My Neighbourhood外研版必修1
2014届高三英语一轮单元复习训练:Module 6 The Tang Poems(外研版选修8)
2014届高三英语一轮单元复习训练:Module 4 Music(外研版选修6)
2014届高三英语一轮单元复习训练:Module 6 The World‘s Cultural Heritage(外研版选修7)
2014届高三英语一轮单元复习训练:Module 3 Adventure in Literature and the Cinema(外研版必修5)
2014届高三英语一轮单元复习训练:Module 5 Great People and Great Inventions of Ancient China(外研版必修3)
2014届高三英语一轮单元复习训练:Module 2 A Job Worth Doing(外研版必修5)
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2014届高三英语一轮单元复习训练:Module 6 Old and New(外研版必修3)
2014届高三英语一轮单元复习训练:Module 5 Ethnic Culture(外研版选修7)
2014届高三英语一轮单元复习训练:Module 5 The Conquest of the Universe(外研版选修8)
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2014届高三英语一轮单元复习训练:Module 6 Films and TV Programmes(外研版必修2)
2014届高三英语一轮单元复习训练:Module 4 Carnival(外研版必修5)
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2014届高三英语一轮单元复习训练:Module 5 The Great Sports Personality(外研版必修5)
2014届高三英语一轮单元复习训练:Module 4 Music Born in America(外研版选修7)
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2014届高三英语一轮单元复习训练:Module 3 My First Ride on a Train外研版必修1
2014届高三英语一轮单元复习训练:Module 6 Animals in Danger(外研版必修5)
2014届高三英语一轮单元复习训练:Module 6 War and Peace(外研版选修6)
2014届高三英语一轮单元复习训练:Module 3 The Violence of Nature(外研版必修3)
2014届高三英语一轮单元复习训练:Modules 4~6综合技能测试(外研版必修2)
2014届高三英语一轮单元复习训练:Module 2 Fantasy Literature—Philip Pullman(外研版选修6)
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