第二部分：英语知识运用（共两节，满分45分）
第一节单项填空（共15小题；每小题1分，满分15分）
21. As we know, ______Potala Palace, a combination of Tibetan construction art and culture, is considered________precious treasure of China.
| A．a; a | B．the; a | C．the; the | D．a; the |
________________, the experiment is sure to succeed.
| A．If carefully doing | B．If carefully done |
| C．If it done carefully | D．It it doing carefully |
When I woke up, I found myself ______ in bed and _______ by doctors and nurses.
| A．lying, surrounding | B．laying, surrounding |
| C．lying, surrounded | D．lain, surrounded |
Because he was _____ the new limit, he was stopped by traffic police and was fined 200 yuan.
| A．good at | B．tired from |
| C．unaware of | D．uninterested in |
All the old paintings were well-preserved when they were discovered by the farmer.
The underlined part means _______.
| A．in good shape | B．in bad condition |
| C．in bad shape | D．in good condition |
______the students didn’t hear what the teacher said. Some of them were absent-minded .
| A．None | B．Not all | C．All | D．Neither |