的professor是将自己的arguments建立在sufficient grounds之上，即base arguments on these grounds。 因此，代词which指代先行词grounds，作介词on的宾语。构成"介词＋关系代词＋to do"。

11．He recommended that a special committee________ to look into the matter.

A．were set up B．was set up

C．be set up D．set up

答案与解析：C　在句型"recommend that＋主语＋(should＋)动词原形"中，从句要用虚拟语气；又因为committee与set up之间为被动关系，所以选择C项。

12. (2007·安徽安庆一中)A sheep ________ on this kind of special grass usually grows much faster than ________ on ordinary.

A. fed; one B. feeds; the one

C. fed; that D. feeding; it

答案与解析：A　fed on作定语，相当于which/that is fed on；后一空中指代的是a sheep，表示泛指，所以用one代替。

13．I like________ in the autumn when the weather is clear and bright.

A．this B．that

C．it D．one

答案与解析：C　it为虚意代词，它笼统地指后面提到事情，即the weather is clear and bright。

14．This year the white ducks are no longer lovely in the local's eyes，________their fear of bird flu.

A．except for B．due to

C．in case of D．instead of

答案与解析：B　due to意思是"由于"，表示原因。except for意为"除了"；in case of意为"万一"；instead of意为"代替，而不是"。

15．________is reported in the newspapers, talks between the two countries are making progress.

A．It B．As

C．That D．What

答案与解析：B　as引导非限制性定语从句，位于句首，指代其主句的内容。此题中标点符号很关键，若将"，"换成that，则选A项。

Ⅲ.完成/翻译句子

1．____________(由于科学家的艰辛工作)，the number of the pandas living wild______________(已经增加到约1590只)．

答案：Thanks to the scientists' hard work; has increased to about 1,590

2．Often working at night, the poachers shoot whole herds of antelope at a time，_____________(只留下那些毛不那么值钱的幼崽)．

答案：leaving only the babies, whose wool is not worth so much.

3．The hunted Tibetan Antelopes_____________(当场被剥下皮来)and the wool is taken to India，______________(在那里这羊毛被制成)the shawls.

答案：are skinned on the spot; where it is made into

4．他是这些孩子中唯一一个学过法语的人。

答案：He is the only one of the boys who has learned French.

5．It is true that those who graduate from famous schools have many advantages, but they pay dearly for them.

答案：毕业于名校诚然有许多益处，但也需付出相当大的代价。