Question

14．be goodRiding bikes is good for our health

Answer 1

分析 騎自行車對我們的健康有益．

解答 答案：Riding bikes is good for our health．圖片上是在騎自行車ride bikes，結(jié)合be good用be good for對…有益，故造句騎自行車對我們的健康有益．表達的是客觀事實用一般現(xiàn)在時，用動名詞riding bikes作為主語，謂語動詞用單數(shù)，our health我們的健康，故答案是Riding bikes is good for our health．

點評 be good at 是"擅長于…"的意思　be good for是"對…有利"的意思例：I am good at English．Fruit is good for our health．