GWD17-Q32

yaozo

为什么选A?

GWD17-Q32:
Navigators have known for thousands of years that the ocean has variable currents, but it is only in the last half century that a reasonably clear picture has emerged of the patterns and causes of ocean currents.

A.    a reasonably clear picture has emerged of the patterns and causes of ocean currents
B.    a reasonably clear picture of the patterns of ocean currents and their causes have emerged
C.    a reasonably clear picture emerged of ocean currents, their patterns and the causes of them
D.    there have emerged a reasonably clear picture of the patterns of ocean currents and what caused them
E.    there had emerged a reasonably clear picture of the patterns of ocean currents and their causes

yaozo

A还原一下就清楚多了。-> a reasonably clear picture of the patterns and causes of ocean currents has emerged

serendipityh

还有别的问题吗?

yaozo

没了，老师。 我的分析对吧？

vickyye

LZ..自问自答?

a reasonably clear picture of the patterns and causes of ocean currents has emerged

不能是这两个并列吗

FFcapm

totally agree... "parallel"

kadin5568576

那主语不是a reasonably clear picture of the patterns and causes of ocean currents 吗， 谓语为什么用has

bowow

那主语不是a reasonably clear picture of the patterns and causes of ocean currents 吗， 谓语为什么用has

-- by 会员 kadin5568576 (2010/10/5 11:49:25)

a reasonably clear picture of 【the patterns and causes of ocean currents】

jackiehuang

同意楼上，causes作名字用的，the patterns and causes of ocean currents, 洋流的规律与成因