air  

air 语音，找出划线字母的正确读音。 (     ) 1. air port 阅读理解。      People and the sources of air 听短文，完成下面表格。每空一词。 Importance      Air is 阅读理解.      Cold air.Snow.Shorter days.We Air is to human _____ water is to fish. [  &n 用括号内所给单词的适当形式填空, 每空一词。 1. Air is a     & 谁帮我同义句转换?  1.Trees can cool the air.2.    选词填空 [do w 选词填空   [do with  in the open air&n Trees can help ______ the air to keep it ______. [ &nbs air-conditioner air free