pp里的语法题？？

bowen

1.Perhaps the most significant postwar trend was the decentralization of cities thoughout the US,_____when massive highway-building programs permitted greater suburban growth.

A,and accelerated a phenomenon .     B , a phenomenon that accelerated

偶选Ａ可是答案是B,B在句中是啥成分阿？？

2.Ronald Reagan had served two terms as governor of California before____President.

A,he became B,became

before后面到底加什莫？可以加句子吗？句子的主语可以省吗？

3。Because of __________diversity,seven separate groupings or divisions of algae have been established by botanists.

A,their B,those

为啥those不行啊？应该后者更好啊，前面又没有提范围？

4。Because Mars is farther from the Sun than____,Mars takes longer to complete a revolution

A.Earth is B.is from Earth. C,what is Earth D, is it Earth

不是than后要到装吗，咋不到装选第一个拉阿c为啥也不对阿

谢谢啦…^_^

likui

以下是引用bowen在2004-11-14 8:41:00的发言：

1.Perhaps the most significant postwar trend was the decentralization of cities thoughout the US,_____when massive highway-building programs permitted greater suburban growth.

A,and accelerated a phenomenon .     B , a phenomenon that accelerated

偶选Ａ可是答案是B,B在句中是啥成分阿？？

“同位语”，解释说明the decentralization of cities thoughout the US

2.Ronald Reagan had served two terms as governor of California before____President.

A,he became B,became

before后面到底加什莫？可以加句子吗？句子的主语可以省吗？

加句子，要省略一般是系表结构，且主语一致。

3。Because of __________diversity,seven separate groupings or divisions of algae have been established by botanists.

A,their B,those

为啥those不行啊？应该后者更好啊，前面又没有提范围？

代词就是用来指代的，their指代seven separate groupings or divisions of algae

those用来泛指，大家有什么别的解释？来说说。

                                                 likui

4。Because Mars is farther from the Sun than____,Mars takes longer to complete a revolution

A.Earth is B.is from Earth. C,what is Earth D, is it Earth

不是than后要到装吗，倒不倒装无所谓

咋不到装选第一个拉阿c为啥也不对阿 选其他的选项than前后比较成分不对称

这道题目解析过，我记得。参见“比较三原则”。

bowen

wa ~~~thx so much

likui

2.Ronald Reagan had served two terms as governor of California before____President.

A,he became B,became

before后面到底加什莫？可以加句子吗？句子的主语可以省吗？

这题答的不好，重答。

before引导句子，省略的情况是1. 主语一致；2. 从句的谓语为系动词（而不是前面解析的那样是系表结构）

这里的问题是如果省略，那么，毫无疑问的became也要省略，所以正确答案还是A

bowen

wa~~~~~~~~好强地斑竹