【课堂新坐标】（教师用书）2013-2014学年高中英语 Module 5 Period Ⅰ Previewing同步备课课件 外研版必修1.ppt

2．Which of the following metals reacts the most with water? A．Copper.　　 B．Iron. C．Aluminium. 3．When heated in oxygen， will react partially. A．Zinc B．copper C．potassium 4．According to the passage，it can be inferred that will have less use in making kitchen tools. A．aluminium B．iron C．steel 【答案】　1－4　C C B A Passage B 5．The experiment shows us . A．how iron rusts with air B．iron is quite easy to rust C．how iron reacts with air and with water 6．“Air-free water”means . A．air with a lot of water B．air without water C．water without air 7．If some clean iron nails are put in a damp place for a week，the nails will . A．rust B．not rust C．form an oxide 【答案】　5－7　C C A Ⅲ.课文缩写 用所给单词或短语的正确形式完成课文缩写 at the top；react with；add...to； at the bottom；substance；reaction；rust；keep...out of；put...in order；boil From Passage A we know the 1. of metals with some 2. such as water and oxygen can be 3. . It can be seen the metals react most 4. and the metals react least 5. . When you heat calcium in oxygen, youll find it burns to form an oxide. And it can easily be seen copper doesnt 6. water. In the first part of the experiment in Passage B, the air is dry, not wet. It shows that iron doesnt 7. when the air is dry. In the second part of the experiment, you must 8. the water to make sure there is no air in it. You 9. some oil to the water because this 10. air out of it. It shows that iron doesnt rust in water that has no air in it. 【答案】　1.reaction　2.substances　3.put in order　4.at the top　5.at the bottom　6.react with　7.rust　8.boil 9．add　10.keeps Ⅰ.词义搭配 1．expand A．a particular time or state that something reaches as it grows or develops 2．contract B．something you hope to achieve by doing something 3．substance C．the tools, machines, clothes etc.that yo