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  3. Forests for Cities You are standing in a beautiful forest in Japan. The air ...

Forests for Cities You are standing in a beautiful forest in Japan. The air ...

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问题 Forests for Cities
You are standing in a beautiful forest in Japan. The air is clean and smells like plants and flowers. There are 175 different kinds of trees, and 60 kinds of birds live here._(46) You are downtown in the city of Nara, Japan, in Kasugayama Forest,the oldest urban forest in the world. It was started more than a thousand years ago, and today itfs very popular with tourists and artists.
Cities around the world are working to protect their urban forests. Some urban forests are parks, and some are just streets with a lot of trees. But all urban forests have many good effects on the environment. _(47) They also stop the noise from heavy
traffic. They even make the weather better because they make the air 3 一5 degrees cooler， and they stop strong winds.
Urban forests also have many good effects on people. They make the city more beautiful. In a crowded area, they give people a place to relax and spend time in nature. _(48)In some countries, people are starting new urban forests. In England, there are now 1. 3 million trees in an urban forest called Thames Chase, east of London. It was started in 1990，and it has grown very fast. Walking and bicycle clubs use the forest, and there are programs for children and artists.___(49)
Some older cities don，t have space for a big urban forest, but planting trees on the streets makes the city better. Scientists found that commuters (通勤人员)feel more relaxed when they can see trees. Trees are even good for business. _(50) In the
future, urban forests will become even more important as our cities grow bigger. In the megacities (超大城市）of tomorrow, people will need more green space to live a comfortable life. Planting trees today will make our lives better in the future.
选项 A Trees take pollution out of the air.
B In 2033, it will have 5 million trees.
Cut you are not in a rural area.
D It has many kinds of birds in the country.
E In hot countries, urban forests are cool places for walking and other healthy exercises.
F People spend more time at shopping centers that have trees.
答案B
解析这一段讲的是伦敦建造城中林的计划和努力，所以很自然最后一句会讲到20年后会 达到什么样的水平。
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