A. chores; by 1997 they had spent nearly six hours a week
B. chores; by 1997 that figure had grown to nearly six hours a week
C. chores, whereas nearly six hours a week were spent in 1997
D. chores, compared with a figure of nearly six hours a week in 1997
E. chores, that figure growing to nearly six hours a week in 1997
本题为什么不选A？
2. The steel industry has changed radically over the last two decades, as large, integrated companies such as Bethlehem Steel once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down altogether. A. as large, integrated companies such as Bethlehem Steel B. as large, integrated companies, such as C. with large, integrated companies, such as Bethlehem Steel, that D. while large, integrated companies, such as Bethlehem Steel, that E. and large, integrated companies such as Bethlehem Steel 为什么选B而不选A 3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities. 为什么选C 请好心人麻烦详细解释一下把，马上考了，急，谢谢
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
The steel industry has changed radically over the last two decades, as large, integrated companies such as Bethlehem Steel once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down altogether.
A. as large, integrated companies such as Bethlehem Steel
B. as large, integrated companies, such as
C. with large, integrated companies, such as Bethlehem Steel, that
D. while large, integrated companies, such as Bethlehem Steel, that
E. and large, integrated companies such as Bethlehem Steel
为什么选B而不选A
3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
为什么选C
请好心人麻烦详细解释一下把，马上考了，急，谢谢
A. chores; by 1997 they had spent nearly six hours a week
B. chores; by 1997 that figure had grown to nearly six hours a week
C. chores, whereas nearly six hours a week were spent in 1997
D. chores, compared with a figure of nearly six hours a week in 1997
E. chores, that figure growing to nearly six hours a week in 1997
个人意见，我觉得A当中they指代不清楚，一般我们可以认为是they解释为children，但是spend得主语也可以是物的相当于take ,所以这里的they会使人感觉指代chores。
本题为什么不选A？
2. The steel industry has changed radically over the last two decades, as large, integrated companies such as Bethlehem Steel once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down altogether. A. as large, integrated companies such as Bethlehem Steel B. as large, integrated companies, such as C. with large, integrated companies, such as Bethlehem Steel, that D. while large, integrated companies, such as Bethlehem Steel, that E. and large, integrated companies such as Bethlehem Steel 为什么选B而不选A 这里首先看一下第二句话的主语是什么？是HAVE DOWNSIZED，所以前面的那个conduct肯定是定语从句的用that表示，否则2个谓语，句子混乱这里的as LARGE SUCH AS共用了一个as。 3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities. 为什么选C 请好心人麻烦详细解释一下把，马上考了，急，谢谢 3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities. 为什么选C 请好心人麻烦详细解释一下把，马上考了，急，谢谢 3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities. 为什么选C 请好心人麻烦详细解释一下把，马上考了，急，谢谢 为什么选C 请好心人麻烦详细解释一下把，马上考了，急，谢谢 这里的A B,都是过去分词作句末，有2个意思，1，是就近修饰名词，还有就是逻辑主语是主句的主语，构成被动状态，所以AB的意思都是不对的，应该根据A感觉应该是海中的分界限阻止逻辑了ACOUSTIC ENERGY。所以选C最好因为同位语结构，n+过去分词，表示伴随结果。 D中的being累赘 E中的prenenting逻辑主语是主句主语或者是表示主谓的伴随状态，但是也不对，这里的prevent的主语应该是by后面的分界线。。改变句意。
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
The steel industry has changed radically over the last two decades, as large, integrated companies such as Bethlehem Steel once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down altogether.
A. as large, integrated companies such as Bethlehem Steel
B. as large, integrated companies, such as
C. with large, integrated companies, such as Bethlehem Steel, that
D. while large, integrated companies, such as Bethlehem Steel, that
E. and large, integrated companies such as Bethlehem Steel
为什么选B而不选A
这里首先看一下第二句话的主语是什么？是HAVE DOWNSIZED，所以前面的那个conduct肯定是定语从句的用that表示，否则2个谓语，句子混乱这里的as LARGE SUCH AS共用了一个as。
3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities. 为什么选C 请好心人麻烦详细解释一下把，马上考了，急，谢谢 3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities. 为什么选C 请好心人麻烦详细解释一下把，马上考了，急，谢谢
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
为什么选C
请好心人麻烦详细解释一下把，马上考了，急，谢谢
为什么选C
请好心人麻烦详细解释一下把，马上考了，急，谢谢
这里的A B,都是过去分词作句末，有2个意思，1，是就近修饰名词，还有就是逻辑主语是主句的主语，构成被动状态，所以AB的意思都是不对的，应该根据A感觉应该是海中的分界限阻止逻辑了ACOUSTIC ENERGY。所以选C最好因为同位语结构，n+过去分词，表示伴随结果。
D中的being累赘
E中的prenenting逻辑主语是主句主语或者是表示主谓的伴随状态，但是也不对，这里的prevent的主语应该是by后面的分界线。。改变句意。
3. Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E. preventing its acoustic energy from dissipating by
不是说逗号不能连接两个独立的句子么？
没有句子啊。。如果是句子，那应该是its acoustic energy（is） prevented from dissipating by。
这里是同为语结构。。所以不能有独立的谓语
eg： i read the book,it on my knee.
Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy by boundaries in the ocean created by water layers of differing temperatures and densities.
我在the new york times 上找到的原句。有一点出入，但是我觉得可以和A 中的as a result of 替换的。A应该没错的。
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