But_unfortunately,_there_is_still_abundant_polluted_air,_and_consequently,_they_have_to_wear_masks.

　　2．它们当中的每一个都在呼喊"我的家在哪儿？"。(主谓宾)

　　Each_of_them_is_crying,_"where_is_my_home？"

　　3．这值得我们思考。(主谓宾)

　　It_deserves_our_thinking.

　　4．我们无视环境保护导致了整个自然平衡的破坏。(主谓宾；contribute to)

　　Our_ignorance_of_the_environment_protection_contributes_to_the_whole_balance_of_nature_being_destroyed.

　　5．我们坚持认为：我们应该采取有效措施保护我们的家园。(主谓宾；insist)

　　We_insist_that_man_should_take_effective_measures_to_protect_our_homeland.

　　6．我们为防止这种场面的发生而做点事情的时候到了。(It's time for sb. to do sth.)

　　It's_time_for_us_to_do_something_to_prevent_such_a_scene_from_happening.

　　第四步：句式升级造亮点

　　1．用which引导的非限制性定语从句连接句2和句3

　　Each_of_them_is_crying,_"where_is_my_home？"，_which_deserves_our_thinking.

　　2．用It's high time that ...句型改写句6

　　It's_high_time_that_we_did/should_do_something_to_prevent_such_a_scene_from_happening.

　　第五步：过渡衔接联成篇

　　Where is my home?

　　 Some fish are forced to leave polluted water and are flying in the sky. But unfortunately, there is still abundant polluted air, and consequently, they have to wear masks. Each of them is crying, "where is my home？"， which deserves our thinking.

　　Recently, diverse polluted materials have come into being everywhere. Waste is being poured into rivers and seas. Poisons that kill pests in farming and chemicals go into rivers and seas, too. Moreover, poisonous gases from factories also make the air so dirty. Our ignorance of the environment protection contributes to the whole balance of nature being destroyed.

　　We insist that man should take effective measures to protect our homeland. Nature is not what it used to be. What if fish died from serious pollution? It's high time that we did/should do something to prevent such a scene from happening.