扫描二维码，直接登录
题库 / Prep2007E1-SC-1
To meet the rapidly rising market demand for fish and seafood, suppliers are growing fish twice as fast as their natural growth rate, cutting their feed allotment by nearly half and raising them on special diets.
their natural growth rate, cutting their feed allotment
their natural growth rate, their feed allotment cut
growing them naturally, cutting their feed allotment
they grow naturally, cutting their feed allotment
they grow naturally, with their feed allotment cut
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
as fast as结构中第一个as是副词，修饰紧跟着的形容词或者副词。第二个as是连词后面跟一个句子。
choice a,b: the rate cannot be 'fast/slow',but can be 'high/ low'
c.不是suppliers种植鱼naturally而是fish grow naturally
要与and raising平行，只能cutting，排除BE。
A：rate只有high/low, 不能用fast修饰，可以说fish are growing fast或者the rate is high。
C：growing them naturally的主语是suppliers，供应者养殖鱼肯定是人工的，谈何自然的人工养殖,,应该是鱼自然生长。
as fast as结构中第一个as是副词，修饰紧跟着的形容词或者副词。第二个as是连词后面跟一个句子。
choice a,b: the rate cannot be 'fast/slow',but can be 'high/ low'
C指代不明 不是suppliers种植鱼naturally而是fish grow naturally
D，suppliers are growing fish twice as fast as fish grow naturally
D中第一个growing是现在进行时，表人们正在饲养鱼，第二个grow是一般现在时，指鱼通常具有的自然生长的状态。
比较的时间可以不一致，今天的我比昨天的我好，今天我打球打得比昨天好。
前后比较的是一个动作
grow them naturally逻辑上说不通
in this construction, "them" (= fish) is the OBJECT of "growing". this implies that someone else must be growing the fish -- which doesn't make sense if we're talking about natural growth.
意思错 C 与自然增长必须是主动，不能是growing them naturally，将原句的意思更改为“供应商养殖鱼类的生长速度和供应商自然养殖鱼类的速度做比较”,不可能是供应商自然增长地养鱼。应该是“鱼自然生长”。
in this construction, "them" (= fish) is the OBJECT of "growing". this implies that someone else must be growing the fish -- which doesn't make sense if we're talking about natural growth.
notice that the correct answer contains "they grow naturally", a more accurate description of what actually happens -- the fish just grow, by themselves.