麻烦老师帮忙讲解一下这三道题，谢谢

1. Online copyrights come at the top because of the powerful lobbying of music companies, ______ faced with a rapidly eroding business model than as victims of crime.

A. having better described as firms

B. which are described to be firms

C. which are better described as firms

D. described as firms to be better

分析：答案应选 C。句意：由于音乐公司强有力的游说，在线版权名列前茅，这些公司与其说是犯罪的受害者，还不如说它们正面临着快速侵蚀的商业模式。后半句对主句中的音乐公司起补充说明作用，因此是非限制性定语从句或后置定语。

A项错：因为它应用被动态，况且用完成式也不符合语境。

B项错：因为 describe 可用于 describe…as…（把…描述是…，把…说成是…），但其中的as习惯上不宜换成to be。

D项错：因为better应修饰described

2.He is ________a basketball player.

A. as good as if not better than his brother as

B. as good as,not better than his brother like

C. as good as if not better than his brother as for

D. as good as if not better than his brother as

这道题怎么解释？

分析：答案应选D。其中的 if not better than...为省略结构。原句相当于：

He is as good as, if he is not better than, his brother as a basketball player.

句意：作为一个篮球运动员，他即使不比他哥哥更优秀，至少也是一样优秀。

3. Professor John's lecture on the recycling of waste paper and other garbage will show ______ can still be improved.

A. that the municipal authorities have done

B. how those the municipal authorities have done

C. how what the municipal authorities have done

D. that how the municipal authorities have done

为什么该题选C而不选D呢？

分析：句子主语是Professor John's lecture，其后 on the recycling of waste paper and other garbage 是修饰主语的定语，后面的 will show 是谓语。______ can still be improved 则是动词 show 的宾语。

同时注意，填空部分有谓语 have done，而空格后还有谓语 can be improved，这表明所填空部分是一个主语从句。根据填空部分的主语从句的结构可知，答案只能选 C，因为其中的 have done 需要一个宾语，而四个选项中只有 what 可以作宾语。