教师节刚过，我感觉我不仅把祝愿送给了教师，还有我的常识
下周又有GRE考试，怎样过?莫慌莫慌，其实有一种题型只用你的小学数学便能正确回答!!
在小学期间,咱们都学过一个公式,即单位量*数量=总量.紧记这个公式,逻辑题一望而知.下面咱们结合例题,一起来剖析一下!
Aplant-based automobile fuel has just become available in Ternland. A car can be driven as far on a gallon of the new plant-based fuel as a car can be driven on a gallon of gasoline, but a gallon of the plant-based fuel both costs less and results in less pollution.
Therefore, drivers in Ternland who switch to it will reduce the amount they spend on fuel in a year while causing less environmental damage.
Which of the following is an assumption on which the argument relies?
A.There is no expense associated with operating an automobile that is higher when the automobile uses the plant-based fuel than when it uses gasoline.
B.Automobiles that have been operated using the plant-based fuel can no longer be operated using regular gasoline.
C.The environmental damage attributable to automobiles is due almost entirely to the production and combustion of fuel automobiles use.
D.The advantages of the plant-based fuel over gasoline will not lead those who switch to the plant-based fuel to do more driving.
E.Most drivers in Ternland will switch from gasoline to the plant-basedfuel.
由题干得知:在T地有一种植物燃料.轿车用这种燃料和用汽油行进间隔相同,可是一加仑的植物燃料在本钱和污染上要比汽油低.所以假如用植物燃料,全年花费的本钱更低,且污染更少.
简化一下推理进程：由于一加仑的植物燃料本钱低污染少,所以全年的污染和本钱也低.
紧记咱们在前面说过的,单位量*数量=总量,在这个标题中一加仑即为单位量,全年的花费和污染即为总量,单位量削减,总量也削减,所以这里边作者隐含的条件即为数量,也便是驾驭的路程数量问题不会使得污染和花费的总量进步.
带着这个思路来逐个剖析选项
A.由汽油转化成植物性燃料后,没有其他的相关费用的进步.
无关选项,原文评论的是在燃料的花费和污染,和其它的花费无关.
B.用了植物燃料的轿车就不能再用汽油了.
很明显,无关选项.
C.轿车对环境的污染简直全部是由燃料的出产和焚烧形成的.
无关选项.
D.运用植物动力带来的优势,不会使得用植物动力的司机开更多的路程数.
这个选项的意思便是,司机驾驭的路程没有变多,所以正是原文推理隐含的假定.
E.大多数司机会运用植物性燃料.
无关选项.
总结一下,在做逻辑题的时分重视,原因和定论的改变,假如原因给出的是单位量,定论给出的总量,大多情况下隐含的假定便是和数量有联系!
给咱们留一个思考题:
Excluding purchases by businesses, the average amount spent on a factory-new car has risen 30 percent in the last five years. In the average household budget, the proportion spent on car purchases has remained unchanged in that period.
Therefore the average household budget must have increased by 30 percent over the last five years.
Which of the following is an assumption on which the argument relies?
A.The average number of factory-new cars purchased per household has remained unchanged over the last five years.
B.The average amount spent per car by businesses buying factory-newcars has risen 30 percent in the last five years.
C.The proportion of the average household budget spent on allcar-related expenses has remained unchanged over the last five years.
D.The proportion of the average household budget spent on food and housing has remained unchanged over the last five years.
E.The total amount spent nationwide on factory-new cars has increasedby 30 percent over the last five years.
请把答案写在留言处，咱们稍后会附上正确答案
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