PP1 CR Q23

[ezkonn]

這題答案是C是說製造商用塑膠容器取代了glass bottles，但很少aluminum cans被取代，是可以理解的。

但是想請問一下答案A為什麼不行???
glass bottles在相同的SIZE的情形下比aluminum cans重，所以導致說glass bottles雖然回收的比例沒有那麼高，但因為很重所以下降的比例大於aluminum cans。

有人可以幫我解答一下嗎??謝謝!!

From 1978 to 1988, beverage containers accounted for a steadily decreasing percentage of the total weight of household garbage in the United States. The increasingly widespread practice of recycling aluminum and glass was responsible for most of this decline. However, although aluminum recycling was more widely practiced in this period than glass recycling, it was found that the weight of glass bottles in household garbage declined by a greater percentage than the weight of aluminum cans.

Which of the following, if true of the United States in the period 1978 to 1988, most helps to account for the finding?

(A) Glass bottles are significantly heavier than aluminum cans of comparable size.
(B) Recycled aluminum cans were almost all beverage containers, but a significant fraction of the recycled glass bottles had contained products other than beverages.
(C) Manufacturers replaced many glass bottles, but few aluminum cans, with plastic containers.
(D) The total weight of glass bottles purchased by households increased at a slightly faster rate than the total weight of aluminum cans.
(E) In many areas, glass bottles had to be sorted by color of the glass before being recycled, whereas aluminum cans required no sorting.

[阿琪]

A會有個模糊地帶~~會有兩種可能產生

1、因為glass bottles既使重很多，但是如果 aluminum cans 所回收的超多~~~量多到使得總重量很大，超過glass bottles所回收 的總重量，這是有可能發生的~
2、當然也有可能 ~~~glass bottles很重，重到下降的比例大於aluminum cans的重量，這也是有可能

C 就完全避免了這種可能~~~，並且說明了原因：因為是總體的量減少！！所以回收的重量減少~~~乾淨俐落

以上 參考○魯！！

[ezkonn]

喔喔 我了解了!!!感謝您耶!!^^

[little8]

那再請教一下(D)選項是有擴大焦點之嫌嗎?
(D) The total weight of glass bottles purchased by households increased at a slightly faster rate than the total weight of aluminum cans.

因為家庭購買玻璃瓶多,不見得回收多?回收多也不見得重量比較重?
這樣的思路正確嗎?

麻煩大大指點嚕~~

[little8]

那再請教一下(D)選項是有擴大焦點之嫌嗎?
(D) The total weight of glass bottles purchased by households increased at a slightly faster rate than the total weight of aluminum cans.

因為家庭購買玻璃瓶多,不見得回收多?回收多也不見得重量比較重?
這樣的思路正確嗎?

麻煩大大指點嚕~~

發現我看錯題目結論句了,這個選項應該是weaken了結論

[little8]

那再請教一下(D)選項是有擴大焦點之嫌嗎?
(D) The total weight of glass bottles purchased by households increased at a slightly faster rate than the total weight of aluminum cans.

因為家庭購買玻璃瓶多,不見得回收多?回收多也不見得重量比較重?
這樣的思路正確嗎?

麻煩大大指點嚕~~

發現我看錯題目結論句了,這個選項應該是weaken了結論