"There is snow today "这句话中为什么要用“snow”而不是"snowy"?

There is a heavy snow today.(用tomorrow改写) There is snow today 这句话中为什么要用“snow”而不是snowy? It is raining now同义句 It′s--- --- now.There is a heavy snow today 同义句 ---- ---- heavily today there is a lot of snow today.（改为同义句）_____very____today there is a lot of snow today.（改为同义句）it's__________today. There is ____ today.A. some rain B. some windy C. a snow there is a heavy snow today另一种说法用it开头 It is a_______(snow)day today ______the grass,there is still some snow although it isn’t snowing today.填介词一定要正确. 英语翻译there is snow on clod days. there is sometimes heavy snow 同义句 It will be_____ (snow)and cold today.There will be ___(snow) in the afternoon. Joe's room is always very ________(mess) It is cold and _________(snow) today.You can speak more English and make a lot of f_______ there The students will study at home on computer this saturday改一般疑问句 _______ the students _______at home on computers this saturday there is a heavy snow today 用tomorrow 改写 There ______ ________ a heavy snow tomorrow It is snow today .这句话错在哪里 It snowed yesterday, but it is much ___ today.(snow) there is a lot of snow today.（改为同义句）it's__________today.excuse me ,please help me .thank you very much!sos sos sos sos sos The weather is （ ）(snow) today. 括号里填snow的正确形式