[解析]
Nowadays pollution has been become a serious problem.The air,seas,rivers and land has been polluted.It does greatly harm not only to human being,but also to animals and plants.We can't have a fresh air because many factories have sent out poison gases into the air.It is reported∧some strange diseases have resulted in eating polluted food.There is a saying:Nature is the mother of mankind.We should not mistreat our mother.Strong efforts must∧made to stop the destruction of the environment.If everyone does his best to protect our mother,I believe,she will become more better in the future
详解:
1.has改为have;考查主谓一致,主语The air,seas,rivers and land是复数形式,故动词用复数形式have.
2.greatly改为great;考查形容词,此处用形容词作定语修饰名词harm.
3.being改为beings;考查名词单复数,此处用复数形式与后面的animals 和 plants用法一致,表示一类.
4.去掉a;考查冠词,air为不可数名词,前面不能用不定冠词.
5.poison改为poisonous;考查形容词,此处用形容词作定语修饰名词gases.
6.reported后面加that;考查固定句式,It is reported that…是固定句型,意为"据报道…".
7.in改为from;考查介词,result in意为"导致,引起",主语是原因,定语是结果. result from 意为"因…而导致…",宾语是原因,主语是结果,结合句意此处应用result from.
8.made前面加be;考查动词的语态,Strong efforts与动词made是动宾关系,故加be构成被动语态.
9.more改为much;考查副词,修饰比较级better用much,more可以用在多音节形容词或副词前面构成比较级,但不能修饰比较级.