went fishing 中的fish为什么要ing?

went fishing 中的fish为什么要ing? went fishing 和went to fish有什么区别?原句是this morning they went fishing again and wanted to get more fish这里可不可以用went to fish? They (went fishing) last weekend括号里为什么不填went fish went fishing是什么意思 区别catching fish 和fishing 是一道题：the reporter went to the sea with severval ____to look for the fishing boat (fish) last weenkend i went ()and() with my parents.ashopping,fishing b.shopped.fished c toshop,to fish Two fathers and two sons went fishing .Each fisherman caught a fish ,yet only three fish were caught.How is this possible? I like going ＿＿（fish）in summer 为什么是fishing而不可以是to fish fish和go fishing的区别是什么 I didn't go on a picnic .I went fishing,(合并为一句）I went fishing ______of ______on a picnic. Two fathers and two sons went fishing .Each fisherman caught a fish ,yet only three fish were caught.How is this possible?2、What is the meaning ofKeep order! They enjoy _____.A.going fish B.go fishing C.going fishing D.to go fishing I went fishing yesterday.My leg hurts. I went fishing yesterday.改为否定句 I went fishing.回到家时弄好 用went fishing写出现在进行时 let s () fishing A go B went