外研版高中英語(yǔ)必修1 module 5《a lesson in a lab》（第二課時(shí)）(文件)
【正文】 in conclusion最后 conclude ；斷定 。 C ；斷定；結(jié)束；結(jié)局； 協(xié)定，協(xié)議 觀察思考 What conclusion do you draw from the evidence? 你從證據(jù)中得到了什么結(jié)論？ From what you say I conclude that you are right. 根據(jù)你的話我斷定你是對(duì)的。 We contracted with a shoe factory for 4,000 pairs of shoes. 我們和一家鞋廠簽訂了一份 4 000雙鞋的合同。 考查倒裝句式 我們靠天吃飯的日子一去不復(fù)返了。 考查句式 It is+adj.+(for/of sb.)+ to do sth. 把傘忘在出租車(chē)上，你真粗心。 考查分?jǐn)?shù)的表達(dá)法和主謂一致 這里三分之一的書(shū)是屬于他的。 C. conclusion aim electrical potassium sodium calcium magnesium aluminum zinc copper oxide rust boils Read the passage again and answer the following questions: 1. Which of the metals in the table reacts the most with oxygen and water? Potassium, calcium and sodium. 2. What happens when you heat calcium in oxygen? It burns to form an oxide. 3. Which metals react with steam? Magnesium, aluminium and zinc. 4. Does iron have a slow or fast reaction with steam? It has a slow reaction. 5. Does copper react with water? No, it doesn’t. Read the passage and fill in the chart. Iron in dry air Iron in airfree water Iron in ordinary water Stage A (starting experiment) cotton wool water water Passage B Stage B (1 week later) Stage C (Result) nails water Iron does not rust Iron does not rust Iron rusts Read the passage again and plete the sentences. 1. In the first part of the experiment, the __
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