Using technology as new as space-age fabrics and as ordinary as common dry-cleaning chemicals, scientists and historians, in their attempt at cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814, are hoping that it will then last another 200 years. (A) and as ordinary as common dry-cleaning chemicals, scientists and historians, in their attempt at cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814, are hoping (1. 固定搭配:attempt to do 2. it 指flag还是baltimore? ) (B) and as ordinary as common dry-cleaning chemicals, scientists and historians are attempting to clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814, hoping (C) and as ordinary as common dry-cleaning chemicals, an attempt by scientists and historians to clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814 is being made in the hope (an attempt 不能做using...的主语,排除) (D) but also as ordinary as common dry-cleaning chemicals, scientists and historians who are attempting to clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814, hoping (没有not only,排除) (E) but also as ordinary as common dry-cleaning chemicals, an attempt by scientists and historians at cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814 in hopes (没有not only,排除)
单从做题来说,选项很好排除。至于it的指代我认为可以考虑插入语去掉的情况,去掉后it指代明显没有了。至于it具体指代的什么,在原句指代相当模糊,没有确切的指代。S and H are hoping that it will last。。。。in their attempt at cleaning and preserving the flag。。。我也很疑惑到底从理论上it在原句是怎么指代的。。。
B选项使用 are attempting改正了这个错误,attempt做谓语动词,hoping表主动引导从句;逻辑上it的指代也明确了;由于it指代是根据逻辑意思,所以last 200 years的,并且clean和preserve的,就是flag。 我也晕了。。。。。。我不是牛。。一刚来的。。愚见。。