2 . It seemed early when I arrived at school, so I decided to ________ the campus a bit. (根据句意填空)

4 . Fill in the blanks with the proper forms of the words and phrases given in the box. Each word or phrase can be used only once.

lower       preserve       physical       carry on       strategy reliable       frighten       show off       apart from       explorer

1. Old technology sometimes continues to exist because of its ________.
2. Some people think fashion is changing with necklines ________ or raised, contributing nothing important but waste to society.
3. At the scene of the accident, the boy’s hair stuck up straight with ________.
4. ________ the hair, he looked extraordinarily unchanged.
5. Protective measures are necessary if the city’s monuments are to ________.
6. From a ________ point of view, wildlife conservation is imperative for the sake of the future of the world.
7. As the top student in this class, he can’t help ________ his outstanding academic performance in front of his fellow students.
8. Her bravery has given him the will to ________ with his life and his work.
9. After ________ the old part of town, there is a guided tour of the church.
10. Are you sure you’re ________ tough enough for this job?

7 . 然而，其他人觉得这是一个肤浅的观点，没有意识到太空探索对人类的帮助.（汉译英）