请牛人指点

Q29: 这个题为什么并列结构后面的be不省略呢？难道是因为数的关系？

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.

1. is reflective, so that little polar ice melts during the summer; otherwise,
2. is so reflective that little of the polar ice melts during the summer; were it to do so,
3. so reflective that little polar ice melts during the summer, or else
4. reflective, so that little of the polar ice melts during the summer, or
5. reflects so that little of the polar ice melts during the summer; if it did

   Answer: B

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

Q30:according to 和 in accordance with 有什么区别呢？

Socially and environmentally responsible investing is on the rise:  last year in the United States, over $2 trillion was invested in funds that screen companies according to a variety of criteria such as adherence to labor standards, protection of the environment, and observance of human rights.

1. according to a variety of criteria such as
2. according to a variety of such criteria, as by
3. according to such a variety of criteria as by
4. in accordance with such a variety of criteria as
5. in accordance with a variety of criteria, such as by

   Answer: D

第一题主要考so that举行，LZ问的并列结构是否是指the temperatures are so cold and the ice cap is so reflective, temperatures是复数，ice cap是单数，不可省略is

第二题， according to是根据， 使用时要注意逻辑主语需与主句一致

                   in accordance with是符合

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=48220
 

LZ看看这个讨论吧，如果把according to当作单纯的介词短语，句首做状语，甚至可以和based on互换，那所有语法书上恐怕都说是不需要考虑逻辑主语的问题，但楼主看看这个讨论帖，然后去PREP找一道既有based on也有according to选项的题目，题号忘记了，体会一下。我个人觉得GMAC有时候当according to是一个分词短语。