PREP语法各路大神看过来~ - ChaseDream

1． Simply because they are genetically engineered doesnot make it any more likely for plants to become an invasive or persistentweed, according to a decade-long study published in the journal Nature.

(A) because they are geneticallyengineered does not make it any more likely for plants to

(B) because it is genetically engineered does not make a plant any more likely to

(E) being genetically engineered does not make a plant any more likely that it will become

正确选D，为什么不能选B？PREP解释说原因状语从句没有主语——it不就是主语吗？？

2. A study on couples' retirement transitions found that women who took newjobs after retiring from their primary careers reported high maritalsatisfaction, more than when retiring completely.

3. India, like Italy and China, has no single dominant cuisine: Indian food comprises many different stylesof cooking, with each a product of their regional influences, from thefiery vegetarian dishes of the south to the Portuguese-influenced Goan cookingof the west, to the more familiar Mogul food of the north.

这道题做是做对了，但PREP笔记的解释我不明白啊——each a product of regional influences怎么是独立主格？这不应该是同位语吗？独立主格至少有个逻辑主语吧：doing啊being啊之类的……

4. In addition to her work on the Miocene hominid fossil record, MaryLeakey contributed to archaeology through her discovery of the earliest directevidence of hominid activity and through her painstaking documentation ofEast African cave paintings.

(A) Mary Leakey contributed toarchaeology through her discovery of the earliest direct evidence of hominidactivity and through her painstaking documentation of

(B) Mary Leakey contributed toarchaeology by her discovery of the earliest direct evidence of hominidactivity and painstakingly documenting

(C) Mary Leakey was a contributorto archaeology by discovering the earliest direct evidence of hominid activityand with her painstaking documentation of

(D) Mary Leakey's contributions toarchaeology include her discovery of the earliest direct evidence of hominidactivity and painstakingly documenting

(E) Mary Leakey's contributions toarchaeology include her discovering the earliest direct evidence of hominidactivity and painstaking documentation of

In addition to her work on theMiocene hominid fossil record, Mary Leakey contributed to archaeology withher discovery of the earliest direct evidence of hominid activity andpainstakingly documenting East African cave paintings.

(A) Leakey contributed toarchaeology with her discovery of the earliest direct evidence of hominidactivity and painstakingly documenting

(B) Leakey contributed toarchaeology by her discovery of the earliest direct evidence of hominidactivity and by painstakingly documenting

(C) Leakey was a contributor toarchaeology with her discovery of the earliest direct evidence of hominidactivity and with her painstaking documentation of

(D) Leakey's contributions toarchaeology include her discovery of the earliest direct evidence of hominidactivity and her painstaking documentation of

(E) Leakey's contributions toarchaeology include discovering the earliest direct evidence of hominidactivity and painstaking documentation of

选D这两道题有什么区别？！in addition to后面的东西不应该要和主语对等的吗？！上面一题选A我想不通！

5. Industrialization and modern methods of insect control have improved thestandard of living around the globe while at the same time they haveintroduced some 100,000 dangerous chemical pollutants, having gonevirtually unregulated since they were developed more than 50 years ago. (A) while at the same time theyhave introduced some 100,000 dangerous chemical pollutants, having

(B) while at the same timeintroducing some 100,000 dangerous chemical pollutants that have

(D) but introducing some 100,000 dangerous chemicalpollutants at the same time that have

(E) but at the same time introducesome 100,000 dangerous chemical pollutants, having

答案选B，解析里说不能选D是因为原句没有转折之意，所以不能用but——但我怎么觉得前面讲industrialization and…..的好，后面讲它带来的负面效应——这还不转折？！为什么不能用but？！