1 . 根据语境，选择下框中的单词，必要时用其正确的形式替换句中划线部分的单词，使之意思一致。

potential          circumstance          objective          encounter nevertheless        detect          acknowledge

1. There is little chance that we will succeed in changing the law. However, it is important that we try.
2. I did not admit that he had done anything wrong.
3. The company reserves the right to cancel this agreement in certain conditions.
4. We experienced a number of difficulties in the first week.
5. The European marketplace offers excellent possibility for increasing sales.
6. The tests are designed to discover the disease early.
7. The main purpose of this meeting is to give more information on our plans.

2 . ________ by topics such as these, young contestants have over the years ________ to develop a better ________ of the world and their life ________. (根据句意填空)

3 . The small group of ________ who work in the ________ are helped by volunteers who come from all over the country, and who are ready for the difficult ________ of life at 5000 metres. (根据句意填空)

4 . Since the 1980s, with ________ TV and the Internet, it has been possible to listen to British and American English at the ________ of a ________. (根据句意填空)

5 . In light of this year’s ________, many contestants talked about the global health ________ in their speeches. (根据句意填空)

6 . A new ________ that combined Western realism with ________ Chinese conventions of composition and brushwork has ________ in China. (根据句意填空)

7 . Then Shenzhou 6 and 7 completed ________ and the first Chinese spacewalk, followed by the vehicle Jade Rabbit being sent to the moon to study its surface. (根据句意填空)

8 . A robot-arm from the Endeavour will grab the telescope and hold it while the astronauts ________.（根据句意填空）