Ⅰ.单词集训
A．词形转换
1．At the same time，government (govern) officials helped to create laws to protect those owls.
2．He ran a successful advertising agency (agent) in Beijing after leaving his former company.
3．There is now abundant (abundance) evidence that depression is quite common in adolescence.
4．The company provides accommodation (accommodate) and good benefits for its employees.
5．He apologized (apology) to his teacher for not finishing his homework on time.
6．In this exhibition, you can see papercutting with various (variety) patterns.
7．He didn't do any preparation(s) (prepare) for this exam，so he failed.
8．On my doctor's recommendation (recommend)，I had the operation.
9．China's stock markets are in selfrecovery and adjustment (adjust) after recent ups and downs.
10．I know that concentration is the first requirement (require) for the study of English.
