问文章的主要目的,作者行文使用的都是各个科学家对于finding的解释和介绍科学家的发现,作者自己并未提出什么证据或者supporting
1.第一句说了,是科学家的一个假设Prior to 1965 geologists assumed that,所以A revealed an error in previous measurements和 Dsuggested that geologists had inaccurately assumed that
1.本题考查的是一个修饰倒桩问题,yet discovered和of,,,都是修饰evidence
没有划分清楚句子成分,没有分出as后面从句的谓语是downsize
注意各种虚拟语气哦
1.DE的方向错了,潜台词应该是价格促销PP产生坏影响的证据
1Clearly price promotions are generally run at a loss, otherwise there would be more of them. 显然价格促销是亏本的,否则它(价格促销战略)应该会被经常使用
They simply avoid paying more than they have to when one of their customary brands is temporarily available at a reduced price.这句话的字面意识要结合上问“短期促销只对有品牌依赖性的某品牌长期客户有用”---为什么有用呢?----在品牌促销时会增加购买是因为”他们仅仅是为了避免比之前买的东西更贵(而在促销期买)“
1.未仔细看出第一句的句子成分,从而为能准确理解意思
文章说eruption就是为了说human activities,句子说二者没有实质性的差别,之前又详细说了eruption对gene的影响,所以就是在为两者作类比,从而支撑人类活动影响gene的这个结论
人类活动会造成habitat loss,而第一段就说了The numerical effect is obvious: there are fewer salmon in degraded regions than in pristine ones
题干关键词,occasional,定位:Low levels of straying are crucial, since the process provides a source of novel genes and a mechanism by which a location can be repopulates should the fish there disappear. 完美对应D
possible和may这样同表不确定语气的词出现在同一个句子中,并没有关注到
先讲基因和habitat都有影响;再讲eruption对habitat有影响,人类活动和eruption类似,所以说明人类活动对habitat有影响。
1.should可以省略这个语法点以前不知
看准平行对象,决定有没有to
another表示另一个,自然选择满足的最低比较数量两个物种比较即可发生,所以不一定非要用others,another(和另一个物种比较)即可
老师, in which和where到底有什么区别啊?
1.that的复数形式是those
B less attractive 文中并未说明deregulation前是attractive 的