II语言知识及运用 (共两节，满分35分)完形填空 (共10小题；每小题2分，满分20分)阅读下面短文，掌握其大意，然后

II语言知识及运用 (共两节，满分35分)
完形填空 (共10小题；每小题2分，满分20分)
阅读下面短文，掌握其大意，然后从21-30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Switching public spending from “grey” projects such as roads and airports, to “  21  ” schemes such as parks, tree planting and vegetables gardens, would not only   22   the government billions of pounds, improve health, and cut climate emissions(排放物),   23   it would create jobs and make British cities more attractive.
The analysis comes from two groups of government advisers, Natural England and the Commission for Architecture and the Built Environment, and is supported by   24  from other countries. It shows that  25  cuts are made in those areas that add to pollution, waste and ill health, and money is invested   26   in projects that save energy, improve health and reduce waste, the benefits are seen quickly.
For instance, the £10.2 billion budgeted by central government for   27   building in Britain this year will increase traffic and emissions and leave the public purse to clean up the pollution and waste. Just half of that money would pay for a new park in every local authority. Equally, the £1.28 billion   28   for widening the M25 by a single lane would benefit drivers by perhaps a few seconds a journey, but it would buy and maintain more than 3 million new street trees.
Government figures show that road traffic has increased 25% in the past 15 years, at the same time as obesity and public health costs have soared. Research also shows that in the place where people have direct   29   with the environment via animals, plants or landscapes, they are more   30  to be mentally and physically healthy. Hospital patients with views of trees rather than of brick walls stay in hospitals for far less time.
21. A. white           B. pink                  C. green                D. purple
22. A. waste           B. save                  C. spend                D. earn
23. A. but                     B. and                   C. so                  D. or
24. A. accident              B. evidence            C. statistics            D. survey
25. A. if            B. while                C. as                     D. where
26. A. however          B. instead                     C. thus                  D. besides
27. A. apartment    B. airport                     C. road                  D. car
28. A. put aside             B. put down           C. set aside         D. set up
29. A. contact               B. communication  C. effect                D. benefit
30. A.     possibly          B. probably           C. frequently         D. likely