[求助]救命啊!!!这3道晕人的GWD语法~~~~~有看法的都说嘛~

 Q15:

The city has proposed a number of water treatment and conservation projects the cost of which raises water bills high enough so that even environmentalists are beginning to raise alarms.

1. the cost of which raises water bills high enough so that
2. at a cost raising water bills so high that
3. at a cost which raises water bills high enough so
4. whose cost will raise water bills so high that
5. whose cost will raise water bills high enough so that

   Answer: D

-------------------------------------------------------------------------------------------------------做题时就在B和D之间犹豫

实在看不出来哪个有什么错误。为什么D比B好呢？

1. while in Germany it is just over 33 percent
2. compared to Germany, which uses just over 33 percent
3. whereas nuclear power accounts for just over 33 percent of the energy produced in Germany
4. whereas just over 33 percent of the energy comes from nuclear power in Germany
5. compared with the energy from nuclear power in Germany, where it is just over 33 percent

   Answer: D

-------------------------------------------------------------------------------------------------------

C也很好啊
                        为什么不选C 啊

Q19:

Possible long-term consequences of the “greenhouse effect,” the gradual warming of the Earth’s climate, may include melting the polar ice caps and a rising sea level.

1. may include melting the polar ice caps and a rising sea level
2. may include the melting of polar ice caps and the rising sea level
3. may include polar ice caps that are melting and sea levels that are rising
4. include melting the polar ice caps and sea levels that are rising
5. include melting of the polar ice caps and a rise in sea level

   Answer: E

-------------------------------------------------------------------------------------------------------may是情态动词，应该尽量保持。所以我觉得C更好，虽然长但是也对称

可是，为什么答案给的是E。。。

要考试了!!语法还有好多不明白啊

大家救救~~~~~有什么说什么

解释一道是一道

小弟在这里谢谢咯!!!

属于马后炮的个人意见：

Q15：看到which前没有逗号的选项一般就不选了；

Q39: 能使用介词的一般不用动词，比如能用about就不用concerning，这里from就比account for简洁，其次just over 33 percent of the energy comes from nuclear power 与 Over 75 percent of the energy produced in France derives from nuclear power从语序上将也更加对称；

Q19：情态动词要保持是没错，但也不能绝对，这里may和开头的possible就重复了；

仅供参考。