问题补充：
短文改错 (共10分,每小题1分,满分10分)
Last Sunday my father and I went fishing along a river. We found the water very dirty that we could hardly catch any fish in it. A lot of factories along the river always poured their waste water and rubbish straightly into the river, which made the river polluting. In this way most of the fish in the river was killed. Unless the rivers all over the country are polluted like this, no living things will be exist in the water. As we all know, environmental pollution do great harm to living things and human beings. Now more and more people have realized what serious this problem is. Our government is doing her best to take measure to fight against pollution. We expect that water in every river will be made cleaner and cleaner before long.very改为 so (第二句)
答案：
(答案→)very改为 so (第二句)
解析：
【小题1】very改为 so (第二句)考查的是so…that…句型，
【小题2】straightly 改为 straight ，考查副词：straight本身就是副词，不用加ly
【小题3】polluting 改为 polluted ，考查过去分词做宾语补足语，the river和pollute是被动关系。
【小题4】was 改为were (第四句)主语是most of the fish，这里的fish是“鱼”是可数名词，只是单复数同形，这里是复数，谓语也是复数
【小题5】Unless 改为If；句意：如果河流都被污染了，水里面就没有生物了。
【小题6】be去掉 （第五句）exist是不及物动词，不能用被动
【小题7】do 改为 does；主语是environmental pollution谓语是单数
【小题8】what改为how，考查感叹句，修饰形容词副词用how
【小题9】measure改为measures，考查名词，measure是可数名词用复数
【小题10】在water前加the ，特指in every river可知是the water
