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 dont 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.
A Trees take pollution out of the air.
B In 2033.it will have 5 million trees.
C But 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.
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