PP-1-86,87

Iewily

The Milky Way is a (flat) spiral galaxy (who) contains (an estimated) 100 billion stars, (including) the Sun.

虽然我知道B是错的......但为什么C是对的呢?......后面的stars不是复数吗?.....前面怎么有"an"呢?...........@@...

The piano (as it) is known today represents (a long series) of experiments (extend) back to the year 1771, or perhaps (even earlier).

为什么C要改成"extending"呢?.....前面不是没有be动词吗....然后时间还是过去时..........

[此贴子已经被作者于2005-1-2 7:20:26编辑过]

waterfrog

Q1: it can be interpreted as "an estimated (number of) 100 billion stars"

Q2: here, "extending" = "which extends"

Iewily

以下是引用waterfrog在2005-1-2 8:05:00的发言：

Q1: it can be interpreted as "an estimated (number of) 100 billion stars"

Q2: here, "extending" = "which extends"

谢谢~~ ^_^

1. 那什么情况下他会省略呢?.........@@

2. 这种用法叫做什么呢?......我怕下次遇到相同考点的题还是做不出来............. >_<

gtren

(an estimated 100 billion) ===> can be considered one whole unit.