高中英語 module 5 a lesson in a lab（第一課時）課件 外研版必修1-預(yù)覽頁
【正文】 you know about general science? How many states does matter exist as? Use your mind! liquid oxygen metal Read the words together Step I Prereading Put these words in the correct order to describe the stages of a scientific experiment. conclusion aim result method ? When we do an experiment , we should first of all have an should use proper should find out the _________and get a________. aim methods result conclusion Scanning: Listen to passage A quickly and choose the best title for it. The Different Uses of Metals The Reaction of Metals The Reaction of Metals with Oxygen Passage A Careful Reading 。usual指在某一地方或某一時間內(nèi)所常見的，往往指常用的東西，或經(jīng)常發(fā)生的事情，反義詞為 unusual； normal同usual和 regular，意為 “ 正常的，正規(guī)的，標準的 ” 。 歸納拓展 keep (sb.) away (from sth.) 使 (某人 )離開 (某 物 ) keep doing keep back阻止，抑制；留 (扣 )下；忍住 (眼淚 )； 隱瞞 keep mind記住 (某事物 ) keep in touch with與 ?? 保持聯(lián)系 keep (on) doing keep off遠離，避開，讓開 keep up保持，維持 keep up with跟上，不落在后面 keep to不跑題，不偏離（道路） 活學活用 A certain percentage of your salary is by the employer as an ensurance payment. away out back up 解析 考查詞義辨析。 You used to see a lot of her,didn’t you/usedn’t you? 你過去經(jīng)常見她，是吧？ 易混辨異 used to/would 二者均含有過去做某事的意義。 I would sit under a big tree in front of my house as a child. 孩提時我經(jīng)常坐在我家房前的大樹下。 (回歸課本 P49) 觀察思考 Why are you still at home? You are supposed to have gone to school. 你怎么還在家？你早應(yīng)該去學校了。 (2)be supposed to do表示“應(yīng)該，應(yīng)當”。句 意為：所有的人都應(yīng)系上安全帶。 It’s difficult to finish the task in such a short period of time. 在這么短的時間內(nèi)完成任務(wù)很困難。 (2)It is+adj.+of sb. to do sth.(該句式中， 作表語的形容詞表達不定式的邏輯主語的品行、 性格或性質(zhì)。 B is a table with the metals that react most at the top,and the metals that react least at the 一個圖表，那些反應(yīng)最強烈的金屬在上部， 反應(yīng)最不強烈的在下部。 Here es the ’s hurry! 車來了 ,我們快點！ Here he es!他來了！ There stands a tall pine tree at the top of the hill. 山頂上有一棵高高的松樹。 A項不是完整的句子； B項倒 裝語序不正確； C項是正常語序，此三項可排除。 若主語從句中去掉 soon，也可以選 C項，即 “ 金 融危機什么時候會結(jié)束 ” ； what在從句中沒法 與其他成分搭配； since自從 ?? 以來，不合句
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