请教两道GWD语法题

derek22604

1. GWD3-Q39:
Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less, get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride.

A.Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less,

B.Minivans, which carry as many as seven passengers, compared with most sport utility vehicles, they cost less,

C.Minivans carry as many as seven passengers, in comparison with most sport utility vehicles, and have a lower cost, they

D.Minivans, carrying as many as seven passengers, compared with most sport utility vehicles, cost less,

E.Minivans, which carry as many as seven passengers, compared with most sport utility vehicles the cost is lower, and they

我选D，参考答案给的A，没想明白…

2. GWD3-Q10:

Antarctica
receives more solar radiation than does any other place on Earth, yet the temperatures are so cold and the ice cap is reflective, so that little polar ice melts during the summer; otherwise, the water levels of the oceans would rise 250 feet and engulf most of the world’s great cities.

A.is reflective, so that little polar ice melts during the summer; otherwise,

B.is so reflective that little of the polar ice melts during the summer; were it to do so,

C.so reflective that little polar ice melts during the summer, or else

D.reflective, so that little of the polar ice melts during the summer, or

E.reflects so that little of the polar ice melts during the summer; if it did

前半截做题的时候看太快了，错选成A了…我不清楚后半截otherwise和were it to do so是不是都可以，还有，为啥后半截的虚拟语气要用were it to do so啊…

多谢各位大虾啦…

花子落落

第一题Minivans（主语）, carrying as many as seven passengers, compared with most sport utility vehicles（修饰部分，无视）, cost less,（谓语部分）。。。

derek22604

第一题Minivans（主语）, carrying as many as seven passengers, compared with most sport utility vehicles（修饰部分，无视）, cost less,（谓语部分）。。。

-- by 会员 花子落落 (2010/8/18 22:55:44)

我也是这么觉得的，但是这么看来答案应该选D… 选项A里面，第一个and我觉得会影响动词的并列，但是参考答案里面给的A，我没想明白…