⒉ 条理清楚，意思连贯，语句通顺，标点正确;⒊ 词数 80 ～ 100。
参考词汇： 建议 suggest v. suggestion n.气体 gas n长沙治疗癫痫病专科医院. 污染 pollution n.
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苯妥英钠的不良反应有哪些? quite often by kinds of noises.
④ Every person in our city makes about 1.8 kilos of rubbish every day.
The environment is becoming worse and worse. There are many kinds of pollution I worry about. The 中医药治疗癫痫病怎么样most serious two are water pollution and air pollution, because people can't live healthily with dirty water and polluted air, nor can animals. More and more diseases are caused by polluted air.
I think factories sho西安哪家治儿童癫痫医院uld not pour dirty water into the river directly or produce more waste gas. We'd better go on foot or by like instead of by car, because more cars mean more waste gas. We should make our world more and more beautiful.