13: GWD-29-Q2

The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

1. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field

2. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

3. core rotates independently and more quickly than Earth’s outer layers are responsible for advancing studies of how heat from the inner core flows through the outer planet, and how Earth’s magnetic field forms and the periodic reversal of its direction

4. core, rotating independently and more quickly than Earth’s outer layers, are responsible for advancing studies of the flow of heat from the inner through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

5. core, rotating independently of and more quickly than Earth’s outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth’s magnetic field forms and the periodic reversal of its direction

上面没有答案，但是我觉得在A，B中选，我选B。不知大家认为如何呢？谢了。

A, the discovery is responsible for advancing studies of the flow and of the formation and periodic reversal....

B the discovery is responsible for advancing studies of how..., and the formation and periodic reversal....

第二个平行不好,并且如果主词是STUDIES,则前面应该用ADVANCED. 个人意见,供参考.

我觉得。A 的结构更好

B。。。。。。how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field。。。

结构 应该错的吧

我想问问independently of, of是什么东东，答案我赞成选A

13: GWD-29-Q2

The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

1. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field[h1] 

2. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field[h2] 

3. core rotates independently and more quickly than Earth’s outer layers are responsible for advancing studies of how heat from the inner core flows through the outer planet, and how Earth’s magnetic field forms and the periodic reversal of its direction

4. core, rotating independently and more quickly than Earth’s outer layers, are responsible for advancing studies of the flow of heat from the inner through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

5. core, rotating independently of and more quickly than Earth’s outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth’s magnetic field forms and the periodic reversal of its direction[h3] 

支持A）

，and...--->为平衡三者，不过句中并无平行对称的三样东西，所以可以删除B）、C） and D)

E）最後的its指称不明确，所以删除，

选A）

考点：主谓一致；平行；

自我分析：

A：完美的平行；

B：and 前后不平行：
                前：how 引导句子，后：名词词组；不对称；

C：The discovery that。。。are, 主谓不一致，应该是is;

D: The discovery that。。。 core， rotating。。，are, 主谓不一致，应该是is;

       rotating 分词修饰歧异，既可以修饰core,也可以修饰The discovery；

E: and 前后不平行：
                前：how 引导句子，后：名词词组；不对称；

       rotating 分词修饰歧异，既可以修饰core,也可以修饰The discovery；