“鬼火”你可能听说过,但你知道它到底是什么吗?(开篇设疑,吸引读者往下读。)暑假的一天,妈妈把我送到乡下的爷爷家,一来可以看望爷爷及太婆,二来嘛,城里热,去乡下可以避暑,真是一举两得啊!(交代几句到乡下的原因,合理。) You may have heard of it, but you know what it is? (Opening question, to attract readers to read.) One day summer vacation, my mother sent me to the country’s grandfather’s house, one can see Grandpa and grandmother, two Well, the city hot, go to the countryside can summer, really serve two good! (To explain a few words to the countryside reason is reasonable.)