[求助]请教,大全53

53      According to the National Pasta Association, per-capita consumption of pasta in the United States, which has already been approaching 19 pounds a year, will achieve 30 pounds a year by the twenty-first century.

(A) According to the National Pasta Association, per-capita consumption of pasta in the United States, which has already been approaching 19 pounds a year, will achieve 30 pounds a year by the twenty-first century.

(B) Already approaching 19 pounds a year in the United States, the National Pasta Association predicts that per-capita consumption of pasta will reach 30 pounds a year by the twenty-first century.

(C) The National Pasta association predicts by the twenty-first century that per-capita consumption of pasta in the United States, which is already approaching 19 pounds a year, will reach 30 pounds a year.

(D) By the twenty-first century, the National Pasta Association predicts that per-capita consumption of pasta in the United States, having already approached 19 pounds a year, will reach 30 pounds a year.

(E) According to the National Pasta Association, per-capita consumption of pasta in the United States is already approaching 19 pounds a year and will reach 30 pounds a year by the twenty-first century

求助!E中为什么要用进行时态呢???没必要啊,并不表示on going的意思啊

疑惑

为什么我的字典没有这个解释啊？

请教楼上出处

你可以看大全注释

谢谢MM,不过那里面对正确答案没解释的!

我是对正确答案采用的时态有疑问

我查的金山词霸啊

哦，可惜我没有555

A) already如果用于现在完成进行时have/has been doing，其表达的含义跟is already doing 中的already表达的是有所不同的：has already been approaching一般表示达到一年19磅这种状态过去已经存在直到现在但可能还会继续，is already doing 表示现在存在的状态但这种状态可能会变(此时already用于一般时或一般进行时, 意思应该是:used to say that a situation exists and it might get worse, greater, etc)，is already doing 后用and 并列引出will do正好表明这种变化的趋势。所以is already doing and will do可能比has already been approaching和will do的搭配要好些，也许更符合意思的表达。

另外，which指代有问题，应该是指per-capita consumption，但其与which太远指代关系比较弱, 且根据意思本应并列的成分，一部分变成了which引导的非限制性定语从句，有把主要信息变为次要信息之嫌。

liweiseedMM我是说这儿没有必要用is already doing 用do就可以了

但如果想bewithjessieGG说的如果be approaching是习语那就只能用is already doing