题目

北方冬天的清晨，我们经常看到玻璃窗上有美丽的“冰花”，这是_______（选填“室内”或“室外”）空气中的水蒸气遇冷发生_______（填“物态变化”名称）形成的。 答案：【答案】室内 凝华 【解析】北方冬天的清晨，玻璃上有“冰花”，是固体小冰晶，是由室内温度较高的水蒸气遇到温度较低的玻璃，发生了凝华现象，凝结在玻璃的内表面。用所给词的适当形式填空。（15分）【1】Our school is very big. It has （千）of students in it.【2】Can you take a _________（消息）for me, please?【3】 Many college students would like to be __________（志愿者）and help others.【4】The nurses are very kind to look after the ________（生病的）people.【5】A good __________（邻居）is better than a distant relative（远方亲戚）。【6】Tom’s shoes are the same as these __________（visit）.【7】The computer engineer is busy ___________（check）his computer.【8】There is too much homework _________（do）today.【9】he’d like to buy a present for his grandpa’s ___________（九十九）birthday.【10】The teacher asks us _______________（not play）in the street.【11】Jim is a friend of __________（ I ）. We often help each other.【12】May is the ________________（five）month of a year.【13】I'm feeling much ______________ （well）, thank you very much.【14】It is_____________（help）to discuss your problems with your friends.【15】when I get to Beijing, I _________（call）you.