题目

请你用下面的材料制成简易太阳能热水器:透明饮料瓶、锡箔纸、平面镜、纸盒、泡沫塑料、透明塑料薄膜、双面胶、墨汁、毛笔等。并用简图与文字的形式,写出太阳能热水器的设计方案。按要求回答问题。 (1) 请按要求在横线处写出对应的材料。①集热器、水箱的制作材料:。②升温材料:。③保温材料:。④辅助材料:。 太阳能热水器的设计图 (2) 设计图中用锡箔纸立在太阳能热水器两侧和底部的作用是什么?我们为什么要选 第二卷 第四部分:书面表达(共两节,满分35分) 第一节  短文填词 (共10小题;每小题1分,满分10分)? 阅读下面短文,根据以下提示:1) 汉语提示, 2) 首字母提示, 3) 语境提示,在每个空格内填入一个适当的英语单词, 并将该词完整地写在右边标号为76-85相对应的横线上。所填单词要求意义准确,拼写正确。 I went by air a great deal _______ I was still a young boy as                  76. __________  both my father and mother l________ in South America and I flew            77. __________ there from Britain for my _________ (假日). An air hostess took             78. __________ good c______ of me and I never had an unpleasant experience. I am          79. __________ used to __________(旅行)by air and only on one occasion have            80. __________ ever felt f_________. After taking off, we were flying low over city              81. __________ and slowly gaining ________ (高度), when the plane suddenly turned        82. __________ round and flew back to the __________ ( 机场). While we were                 83. __________ waiting to land, an air hostess told us to keep c_______ and get             84. __________ ________ the plane quietly as soon as it had touched down.                              85. __________
科学 试题推荐