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一、整体把握 （一）理清句际间意义的关系 文章的内容是根据各层各段的大意有机地组合而成，各个层次，各个段落之间不管怎样错落有致，但它所表达的内容都是要围绕中心的，各句之间都有一定的语脉，从逻辑意义上来看，语段的句际关系可分为平列、顺序、层递、转折、总分、解释、因果等关系。构成语段的各个句子之间有时可以包含一种以上的句际关系。因此，理解阅读材料时一定要把握语脉，理清句际间的关系，进而理解语段或全文的内容。下面来看两套真题： 2016年北京卷， The Science of Risk-Seeking Sometimes we decide that a little unnecessary danger is worth it because when we weigh the risk and the reward, the risk seems worth tasking. 71 Some of us enjoy activities that would surprise and scare the rest of us. Why? Experts say it may have to do with how our brains work. The reason why any of us take any risks at all might have to do with early humans. Risk-takers were better at hunting, fighting, or exploring. 72 As the quality of risk-taking was passed from one generation to the next, humans ended up with a sense of adventure and a tolerance for risk. So why aren’t we all jumping out of airplanes then? Well, even 200,000 years ago, too much risk-taking could get one Killed. A few daring survived, though, along with a few stay-in-the-cave types. As a result, humans developed a range of character types that still exists today. So maybe you love car racing, or maybe you hate it. | 
