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CR,答题卡:BE,答案:BA
1. P:学校牛奶盒换成塑料的,剩下的牛奶变少了
C:因为新包装,学生喝的多了
assumption,取非削弱,削弱后的立场:学生并不是因为新包装喝的多
A取非:新包装的牛奶口味变化了【仍然是因为新包装导致喝的多】
答案B取非:新塑料包装漏出更多的牛奶【不是喝完的,是漏完的】
2. P:M公司打算用使用过的食用油代替fuel oil,可以节约成本30%,政府负责新设备的费用
C:有concern认为对使用过的食用油需求增加,价格会上涨,会变得更fuel oil一样贵
削弱题,立场:使用过的食用油价格不太会上涨
我选E:在讨论fuel oil ,跟食用油无关【应该排除】
答案A:食用油的供给一直很多【推断出价格不会上涨】
错在削弱题立场理解错误
RC,答题卡:ADBCECDC,答案:ADCCECDC
1. 文章主旨题,篇章内容就是在说人类已成为全球维管植物散布的主要力量
2. 定位第三段,提炼关键词
3. 二选一错,定位第四段:First, most weeds in a region are not native but were introduced by humans. Second, the largest single group of these unwelcome intruders was originally introduced deliberately (Panetta 1993).
B 选项错在没有人人类引入是故意的还是无意的。
4. 定位倒数第二段:For instance, 60% of the more than 600 naturalized taxa listed in Fernald (1950) for the northeastern United States were deliberately introduced, with the true percentage likely being higher due to the obscure original use of many naturalized species (Sturtevant 1919).
5. 定位第一段:Accidental dispersal involves the transportation of seeds, plant disseminules, and vegetative propagules through clothing, domesticated animals, and various forms of commerce, particularly as contaminants in seed lots (Muenscher 1955).
6. 定位第二段:The term "weed," while anthropocentric, is often applied to species in both ecological categories and to those that are destructive in their native range. Although there is no universally agreed-upon definition of weeds, Baker's (1974) definition—species that not only have no detected human value but actually interfere with human activities—has gained wide acceptance.
7. 定位倒数第二段:Both conclusions have significant implications for controlling a nation's current weeds and preventing future weed introductions.
8. 定位最后一段
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