GWD-2-16

chenyuwoody

Q16:

Prospecting for gold during the California gold rush was a relatively easy task, because of erosion, prehistoric glacier movement, and ancient, gold-bearing riverbeds thrust to the surface by volcanic activity put gold literally within reach for anybody with a pan or shovel.

A. because of erosion, prehistoric glacier movement, and ancient, gold-bearing riverbeds thrust to the surface by volcanic activity put gold literally within reach for

B. because of erosion, prehistoric glacier movement, and volcanic activity that thrust ancient, gold-bearing riverbeds to the surface, and putting gold literally within reach of

C. owing to erosion, prehistoric glacier movement, and volcanic activity that had thrust ancient, gold-bearing riverbeds to the surface, and putting gold literally within reach of

D. since erosion, prehistoric glacier movement, and volcanic activity that thrust ancient, gold-bearing riverbeds to the surface, putting gold literally within reach for

E. since erosion, prehistoric glacier movement, and ancient, gold-bearing riverbeds thrust to the surface by volcanic activity put gold literally within reach of

答案是E，不理解. since也可以用来表达因果关系吗

Lilac29

    

Main Entry:

²since
        

Function:

conjunction
        

Date:

15th century

    

1: at a time in the past after or later than
<has held two jobs since he graduated>
                : from the time in the past when <ever
since I was a child>2obsolete
                : when3: in view of the fact that
: because
                        <since it was raining she took an
umbrella>

www.m-w.com

Because of the comma there, you have to pick a full sentence instead of prepositional phrase. Either "because" or "since" is fine.

chenyuwoody

thanks

goodstake

有个小问题
E选项里面的
ancient, gold-bearing riverbeds
逗号应该是and吧，连接两个形容词

rui92

我觉得答案是D。。。。。考虑reach的用法，reach of的意思在句子里行不通