题目

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 We always think it's OK for us to leave our plantsunattended during our vacation, but a recent study has led to a new (discover). Some scientists tested tobacco plants and tomatoplants by cutting off their stems (茎) and (stop) watering them. Theythen recorded their response with a microphone (place)ten centimeters away. They found that the plants began to scream ultrasonic(超声波) sounds, which they believedcould convey their suffering other plants. When the stem of a tomato plantwas 第三部分：习作夏天是一个多姿多彩的季节，请你以“美丽的夏天”为题，写一段话。要求：①写出秋天的特点。②抓住秋天的景色去写。不要写错别字呀，字数不少于300字。