题目

干冰在工业上有广泛的应用．某工厂储气罐中的二氧化碳中混有少量的气体，若要除去混合气体中的一氧化碳，可以采用的方法是让混合气体通过灼热的金属氧化物，然后再采用________的方法把纯净的二氧化碳气体________（填物态变化名称）制成干冰．在食品运输和储存过程中，使用干冰能起到防腐和保鲜的作用，其原理是________．Hello. I’m Tom. I’m a middle school student. It’s nice to meet you here. First, let me tell you ______about my family. There are five people in my ______. They are my mother, my father, my sister, my brother and me.My father is a worker. My mother is an English teacher. My sister is eighteen and my brother is sixteen.I’m fourteen. We______ go to the same school. We all enjoy ______ football games.My ______ is at West Street. There is a big tree and some small trees______ my house. The big one is a pear tree and the small ones are apple trees, ______ there ______ any pears or apples on them now._____a photo of my house. In the photo, you can see three cats in my house. They are all black and white. We ______ them very much.1.A. anything B. something C. thing D. anyone2.A. school B. house C. room D. family3.A. two B. five C. three D. six4.A. seeing B. looking at C. watching D. looking5.A. bedsore B. school C. room D. home6.A. at B. in C. on D. around7.A. but B. and C. so D. or8.A. isn’t B. is C. are D. aren’t9.A. He’s B. She’s C. it’s D. There’s10.A. are liking B. likes C. like D. is liking