同學們，看到下面的四幅圖片及相應的報道后，你感到最擔憂的是哪兩種情形？請簡述你擔憂的理由并提出建議或希望。
要求：⒈ 從所給素材中任選兩種情形進行闡述，不可多選或少選。
⒉ 條理清楚，意思連貫，語句通順，標點正確；
⒊ 詞數120左右。
THE POLLUTIONS
① One third of the world's people don't have enough clean water.
② More and more diseases are caused by polluted air.
③ People are disturbed quite often by kinds of noises.
④ Every person in our city makes about 1.8 kilos of rubbish every day.
With the development of industry, the environment is becoming worse and worse. There are many kinds of pollution I worry about.
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