Ⅰ.语境语法填空
A(考查派生词)
An 1．announcement (announce) was made yesterday, saying that Mr. Watson was awarded a prize for his 2．contribution (contribute) to environmental protection. How to stop the air being polluted is a 3．challenging (challenge) task facing society today. Mr. Watson began to work on air 4．pollution (pollute) problems at age 24 and has been showing great 5．enthusiasm (enthusiastic) for his work. He thinks governments should take 6．responsibility (responsible) for the worsening air quality. He often gives specific instructions in the 7．construction (construct) of power stations, warning that people should be 8．cautious (caution) in producing electricity from coal.
B(考查动词)
The tennis match 9．concluded (conclude) after three days' fierce competition. Andy ranked first by 10．defeating (defeat) all the other players. 11．Being exposed (expose) to the strong sunlight for over two hours every day made him very exhausted, but he felt happy. When he 12．was announced (announce) to win the title, he burst into tears. His wife and son were invited 13．to attend (attend) the awarding ceremony. They were proud of Andy, saying that all his efforts 14．had contributed (contribute) to his success. So far, this match 15．has absorbed (absorb) much attention from Asia, America and Europe.
C(考查句型)
Mrs. Brown didn't know who 16．to blame (blame) for the stolen antique vase. She lived in a big house with a strong fence 17．surrounding (surround) it. Every time she left home she would have all the windows and doors 18．locked (lock). The robber must 19．have been (be) very smart and intelligent, for neither the alarm 20．nor her dog made a sound when he slipped in. Only 21．if the police arrested the robber did she know if she could get back the expensive vase.
