题目

完形填空。It was a _______ day. Lily and Tom _______ to school together. They had their boots and umbrellas. Tom was _______ but Lily was wet. Why? _______ they saw an old man walking in the rain _______ his boots or umbrella. So Lily gave her umbrella to him. What a good girl she is!【1】A.snow B.sunny C.rainy【2】A.walk B.go C.walked【3】A.dry B.wet C.clean【4】A.But B.So C.Because【5】A.with B.without C.have如图为植物细胞平面结构模式图，请据图回答下列问题．（在中括号内填序号，横线上填结构名称）（1）切开西瓜时，流出的红色汁液是______，它来自图中的[______]______．（2）在显微镜下观察，可见到图中的[______]______可以缓缓地流动．（3）对细胞起支持和保护作用的结构是[______]______．（4）能控制物质进出细胞的结构是[______]______．（5）贮存有遗传信息的物质是______，它主要存在于[______]______中．