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题库 / GMATAdvanced-SC-20
One analyst of the liquor industry estimated that this year a few liquor stores have experienced declining sales of up to fifty percent but predicted that the industry as a whole will maintain a volume of sales fairly close to last year.
declining sales of up to fifty percent but predicted that the industry as a whole will maintain a volume of sales fairly close to last year
declines in sales of up to fifty percent but predicted that the industry as a whole would have maintained a volume of sales fairly close to last year
up to fifty percent in declining sales but predicted that the industry as a whole would maintain a volume of sales fairly close to last year’s
sales declines of up to fifty percent but predicted that the industry as a whole would maintain a volume of sales fairly close to last year’s
declines up to fifty percent of sales but predicted that the industry as a whole will have maintained a volume of sales fairly close to last year’s
C是，在销量下降上经历了多达百分之五十；
D是，经历了销量多达百分之五十的下降；
E是，经历了下降达到销量的百分之五十；
A B:to last year不对，要用所有格。另外A里边experienced sales不对。
剩下CDE。
C: experienced xx percent不对。
E: 销量的多达50%的下降，语义不对；另外后面的从句不用will have，要用would have。
D: 多达50%的销量下降。
1.先分辨 UP TO 50 PERCENT 是在修飾甚麼 => DECLINE? SALES?
2.LAST YEAR還是LAST YEAR'S
=>應該會是DECLINE 50% 而不是SALES
=>比較的不是時間
(C) experience "up to 50 %" 這個也怪怪的 不會經歷這個東西 應該是經歷下降或是銷售量之類ㄉ
experience 体验的不应该是percentage （比例），而应该是 体验/经历销量下降
很多类比 比较型的题目 注意对象是否可以进行比较
would have是对过去的虚拟；would是对现在或未来的虚拟或者在过去预测未来，这里是在过去预测未来。
A&B last year 比较对象错误
C：experienced不能加percentage
E：declines 后面需要加of，而且后面要用would
would have是对过去的虚拟；would是对现在或未来的虚拟或者在过去预测未来，这里是在过去预测未来。
lx只是做题思路，更多的modifier的位置大家可以在做完题后总结。 比如说up to fifty的位置
根据intended mean，必然是经历一个decrease，排除Ac
观察时态（过去式），will错误，排除e；
would have done 原本做了却没有，不符合intended mean （but 表转折，实际情况和前者不一样），排除b
D is the best
首先是close to last year's后面没东西所以不能说last year,因为对比的是这两年的sales,排除AB;experience的不能是一个percent所以排除CE.
徘徊于C和D，have experienced sales declines( noun) ,而不能说Experience percent
1.不能说experience 下降的sales，逻辑语义错误，要说经历declines in sales,
2.volume of sales 的比较对象是去年的sales，要用last year’s
3时态，过去predict的内容不会是完成时，要用would
B: would have done表示与现在相反的虚拟 比较对象错误
如果predicted后面应该接would (not will) 好奇为什么estimated后面接have experience,不是had experienced???
have experienced 表示动词先时性，experienced 这个动作先于estimated 发生，并且已经产生了结果，即sales declines of up to fifty percent，所以不用have been experiencing
简单来说
一个句子同时出现过去时和现在时，可接受
一个句子同时出现现在时和将来时，可接受
一个句子同时出现过去时和将来时，不能接受
栗子
If you go, I will go. 对
If you went, I would go. 对
If you went, I will go. 错
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A/B: volume of sale和last year做比较
E: predict后面应该接would, not will
A/B: volume of sale和last year做比较
E: predict后面应该接would, not will
A： will- would last year's
B: would have done表示与现在相反的虚拟 比较对象错误
C： 经历percent错误
E： would， have maintained时态问题
would相较于will，表达了一种更委婉的语气，will用在这种情形下，于句意不符，排除AE，
experienced后面不可能接up to， 排除C，
B 的时态不对，句子表达的是一个预期，不可能用have maintained这种完成时态
C. The phraseology has experienced up to fifty percent is incorrect, since a percent cannot be experienced.
D. Correct. This choice correctly refers to declines, uses the correct would maintain, and correctly compares this year's sales volume with last year's sales volume.