207 220 两道PREP 新版SC2 破解 马上就要考试了。。请大家帮帮忙

fay009

207.(24630-!-item-!-188;#058&001004)(GWD-24-34)



Studying the fruit fly, a household nuisance but a time-honored experimental subject, has enabled the secrets of how embryos develop to begin to be unraveled by scientists.

A. Studying the fruit fly, a household nuisance but a time-honored experimental subject, has enabled the secrets of how embryos develop to begin to be unraveled by scientists.

B. By the study of the fruit fly, a household nuisance and also a time-honored experimental subject, it was possible for the secrets of how embryos develop to begin to be unraveled by scientists.

C. By studying a household nuisance but a time-honored experimental subject, the fruit fly enabled scientists to begin to unravel the secrets of how embryos develop.

D. By studying the fruit fly, a household nuisance and also a time-honored experimental subject, the secrets of how embryos develop are beginning to be unraveled by scientists.

E. The study of the fruit fly, a household nuisance but a time-honored experimental subject, has enabled scientists to begin to unravel the secrets of how embryos develop.



答案是E。我觉得A也可以的啊~~~



如果说studying不可以做has enable的主语，那为什么The study就可以呢。。

还是因为A用了被动语态所以不好？

谢谢指教~~~





220.(29238-!-item-!-188;#058&003590)(GWD-6-Q31)



The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably on a spectrum of genetic relatedness.

A. The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably

B. That some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely that they vary considerably

C. With some fraternal twins resembling each other greatly and others looking quite dissimilar, it highlights an interesting and often overlooked feature of fraternal-twin pairs, namely considerable variation

D. With some fraternal twins resembling each other greatly and others looking quite dissimilar, it is a fact that highlights an interesting and often overlooked feature of fraternal-twin pairs, namely a considerable variation

E. Because some fraternal twins resemble each other greatly and others look quite dissimilar, this fact highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably



答案是B。

我觉得AB都可以。难道是A少了一个that么？还是说不能用the fact作主语要用that做主语才行？

p.s. namely是一个adv.，是否表示加上了that（即namely that才能引导一个句子？）

或者有什么其他的错误么？

谢谢大家哈

切尔西

207题，第一点：study 有名词词性，优先适应名词；第二点：enanble sb. to do sth. 不能说enable sth. to be done,也就是说不可以用在被动语态

220， The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar 这句中the fact of 既可以修饰and前面的部分，也可以两部分都修饰，有歧义；另外可能还有就是and前后是转折关系，这点不确定，你在确认下，当然还有你提到的那点也不是确定