Keeping Water Sources Clean
Who is willing to drink the polluted water? It can cause us to be ill and even to die. We can't wait for a moment to protect our water sources. The water we use comes from oceans, lakes, rivers or streams. But many of these water sources are getting seriously polluted. Towns and cities are pouring dust into the water. Many people are throwing all kinds of dirty things into the water. Factories are pouring waste material into the water. Therefore, water sources have become so badly polluted that some of the water is unfit to drink or to use. Now it is high time that we should do something to protect our water environment from being polluted.
保持水源清洁
污染的水会使人生病甚至死亡,有谁愿意喝这样的水呢?我们要保护水源,刻不容缓。我们用的水来自海洋、湖泊、河流或小溪,但这些水源有许多正受到严重的污染。城镇乒把大量的尘埃排入水中,许多人正把各种;各样的脏物投进水中,工厂正把废物排入水中。因此,水源已经污染严重,其中一些不适合再饮用。现在到了.采取措施保护水环境使其免受污染的时候了。
新概念英语第一册 Lesson 73:The way to King Street
新概念英语第一册 Lesson 41:Penny’s bag
新概念英语第一册 Lesson 51:A pleasant climate
新概念英语第一册 Lesson 85:Pairs in the spring
新概念英语第一册 Lesson 103:The French test
新概念英语第一册 Lesson 115: Knock,knock
新概念英语第一册 Lesson 101:A card from Jimmy
新概念英语第一册 Lesson 113:Small change
新概念英语第一册 Lesson 67:The weekend
新概念英语第一册 Lesson 137:A pleasant dream
新概念英语第一册 Lesson 119:A true story
新概念英语第一册 Lesson 131:Don’t be so sure
新概念英语第一册 Lesson 79:Carol’s shopping list
新概念英语第一册 Lesson 81:Roast beef and potatoes
新概念英语第一册 Lesson 71:He’s awful
新概念英语第一册 Lesson 57:An unusual day
新概念英语第一册 Lesson 117: Tommy’s breakfast
新概念英语第一册 Lesson 65:Not a baby
新概念英语第一册 Lesson 43:Hurry up
新概念英语第一册 Lesson 109:A good idea
新概念英语第一册 Lesson 133:Sensational news
新概念英语第一册 Lesson 125:Tea for two
新概念英语第一册 Lesson 69:The car race 汽车比赛
新概念英语第一册 Lesson 83:Going on holiday
新概念英语第一册 Lesson 89:For sale
新概念英语第一册 Lesson 99:Owl
新概念英语第一册 Lesson 97:A small blue case
新概念英语第一册 Lesson 87:A car crash
新概念英语第一册 Lesson 91:Poor Ian
新概念英语第一册 Lesson 55:The Sawyer family