Many things have been done and great progress has been made in the greenization of our cities in recent years. Many trees have been planted and much care has been taken of the planted trees. But, in spite of all this, greenization in the cities in China is far from satisfactory compared with cities in other countries in the world. For example, the green space for every people in Shanghai is only 2 square meters while that of the people in London exceeds 20 square meters.
We can benefit much from the greenization of our cities. First, trees absorb carbon dioxide which is harmful, but produce oxygen which is essential to human beings. Secondly, with trees all around, our cities will look more beautiful. Thirdly, trees can improve the climate of the cities, making it neither too hot in summer nor too cold in winter.
Since we can get so much benefit from making our cities greener, we should spare no effort to do so. We should plant even more trees and take even better care of them while they are growing. Besides, we should not cut down trees any more. In a word, we should do everything to add to the greenization of our cities.
很多事情已經(jīng)完成,已經(jīng)取得了很大的進(jìn)步在近年來(lái)我們城市的綠色化。許多樹被種植和護(hù)理被種植的樹木。但是,盡管如此,綠色化城市在中國(guó)遠(yuǎn)非令人滿意與世界上其他國(guó)家的城市。例如,綠色空間對(duì)于每一個(gè)人在上海只有2平方米,而在倫敦的人超過(guò)20平方米。
我們可以從我們的城市的綠色化。首先,樹木吸收二氧化碳是有害的,但產(chǎn)生的氧氣對(duì)人類至關(guān)重要。其次,到處都是樹,我們的城市將會(huì)更美麗。第三,樹木可以改善城市的氣候,使其冬天夏天既不太熱也不太冷。
因?yàn)槲覀兛梢允芤嬗谑刮覀兊某鞘懈h(huán)保,我們應(yīng)該不遺余力地這樣做。我們應(yīng)該種植更多的樹木和采取更好的照顧他們當(dāng)他們正在增長(zhǎng)。此外,我們不應(yīng)該砍伐樹木�？傊�,我們應(yīng)該盡一切努力增加我們城市的綠色化。
