揽瓜阁 逻辑做题小分队Day117

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In the Mediterranean Sea, Mercury levels in the water and in fish are generally three times as high as in the Atlantic Ocean. Mercury in sea water can come from natural sources. However, the Mediterranean is a virtually enclosed sea, and year after year for the past few decades, large amounts of mercury have been discharged into it by industries. So, industrial pollution is probably the prime cause of Mediterranean’s exceptionally high mercury levels.

Which of the following, if true, most seriously weakens the conclusion?

A The Atlantic coastline of Europe is, on the whole, even more heavily industrialized than Europe’s Mediterranean coastline.

B Museum specimens of fish caught in the Mediterranean nearly a century ago have been found to have mercury levels only a little lower than those of fish caught there today.

C The mercury level in the Mediterranean is not as high as that in certain parts of the Atlantic that are immediately offshore from sources of industrial pollutions.

D Most of the industrial pollution that is charged into Mediterranean reaches the sea by way of rivers, with only a small part discharge directly into the sea by industries on the coastline.

E Some of the mercury contained in seawater worldwide comes from atmospheric pollution that is precipitated into the water.

The material traditionally used for make kettles in which water for teas is boiled is iron. When water is brought to a boil in these tea kettles, minute traces of iron dissolve in the water. These trace amounts of iron affect the taste of the tea. The use of tea kettles made of nontraditional materials that do not dissolve in water would therefore generally improve the taste of the tea.

Which of the following is an assumption on which the argument depends?

A Some metals do not dissolve in boiling water.

B Iron from kettles is the only impunity that is found frequently in water used for tea.

C Trace amount of dissolved iron do not improve the taste of tea.

D A significant number of people would be willing to switch from iron tea kettles to tea kettles made of nontraditional materials.

E Tea can be made without bringing the water to a boil.

参考答案：BC

yjjy3712

ec

大月亮cyn

M在M海的浓度比在A高很多，M可能来源于Natural sources。【however】M海enclosed，M是industry流进的，【conclusion】工业污染导致高浓度M 问削弱
A A coastline更工业化 无关比较/没有提及Mercury
B 很久以前（没有industry）M也只比现在浓度低一点，所以extremely high M和industry无关？
C 和Atlantic parts比较 X
D 工业污染by rivers到M 只有一小部分直接进入S 但M enclosed 一小部分 也可能导致 High Mercury
E Some 也有可能更多地来自industry 无法削弱
B和D有些纠结… B也可能说很久以前也有些工厂Mlevels已经被工业污染升高了

传统Kettles是用iron做的，水开的时候一些iron会溶解在水里影响茶的口味。 所以用nontraditional materials做的kettles会提升茶的口感。问assumption
A some metals ？没明确nontraditional materials是metal？取反也不能削弱
B 不太明白…但看起来好像和题目没什么关系…
C 如果iron就能提升口感那traditional的kettles就可以improve taste不用换成nontraditional materials
D 人换不换和materials能否improve taste无关
E 不用boil water就能做茶 outofscope题目关注的是换material能不能improve taste

CaryX

Mark一下！               

r_o_s_e

1 B 02:46 控制变量法
2 C 01:05  A到B方案，B方案缺少了什么？

Ariccca

看一下！               

断了的弦

BC

清影嘿嘿

AC

zyycn

1、现象：地中海的水和鱼的汞含量是大西洋的3倍，原因：近几十年的工业污染。
思考：果因论证，考虑他因削弱、类比削弱或因果倒置

A：欧洲大西洋海岸线比地中海海岸线更工业化。偷换概念，工业化与工业污染不同。
B：100年前的鱼的汞含量只比现在鱼的汞含量低一点点。正确，类比削弱，同果反因。
C：地中海汞含量比大西洋某处污染源海域的汞含量低。非整体情况。
D：说明地中海污染是什么方式入海的。无关。
E：一些汞污染是从大气中进入海水的。无关。

选B

2、茶壶里的铁会溶解到水里从而影响口感，所以用非铁茶壶就会提高口感。
问assumption
思考：因果论证，偷换概念——影响口感和提高口感，考虑搭桥。

C：铁元素不会提高口感。正确，取非后铁会提高口感，则削弱结论。
其他均无关。

选C

Dora晴

the Mediterranean is a virtually enclosed sea, and year after year for the past few decades, large amounts of mercury have been discharged into it by industries.
--> industrial pollution is probably the prime cause of Mediterranean’s exceptionally high mercury levels.
判断
Which of the following, if true, most seriously weakens the conclusion?
A The Atlantic coastline of Europe is, on the whole, even more heavily industrialized than Europe’s Mediterranean coastline.（无关比较）
B Museum specimens of fish caught in the Mediterranean nearly a century ago have been found to have mercury levels only a little lower than those of fish caught there today. （可能不是工业排污的原因）
C The mercury level in the Mediterranean is not as high as that in certain parts of the Atlantic that are immediately offshore from sources of industrial pollutions. （无关比较）
D Most of the industrial pollution that is charged into Mediterranean reaches the sea by way of rivers, with only a small part discharge directly into the sea by industries on the coastline.（无关）
E Some of the mercury contained in seawater worldwide comes from atmospheric pollution that is precipitated into the water. （不能说是地中海的）


These trace amounts of iron affect the taste of the tea.
-->The use of tea kettles made of nontraditional materials that do not dissolve in water would therefore generally improve the taste of the tea. 判断
Which of the following is an assumption on which the argument depends?
A Some metals do not dissolve in boiling water.
B Iron from kettles is the only impunity that is found frequently in water used for tea.无关
C Trace amount of dissolved iron do not improve the taste of tea. （否定weaken）
D A significant number of people would be willing to switch from iron tea kettles to tea kettles made of nontraditional materials.（无关）
E Tea can be made without bringing the water to a boil.（无关）

BA