高中英語module5alessoninalab第一課時課件外研版必修1(完整版)
【正文】 on wool can keep air dry. Iron reacts with oxygen in ordinary water and forms rust. Let’s do a simple experiment to test if magnesium can burn in the air and write a short report: Aim: Methods: Result: Conclusion: To find out if Magnesium burns in the air 1)use a pair of tongs to pick up some magnesium 2)light it Magnesium is burning with a bright flame in the air Magnesium can burn in the air Magnesium can burn in the air 活學(xué)活用 Letter boxes are much more in the UK than in the US,where most people have a mailbox instead. 解析 本題考查同義詞辨析。 (回歸課本 P46) 觀察思考 We’ve always tried to keep out of local politics. 我們總是盡可能避免卷入地方政治中。如： He used to be a doctor,but now a lawyer. 他過去是一名醫(yī)生，現(xiàn)在是一名律師。 作及物動詞時，意為“假定，設(shè)想”，有時還可 用來提出建議，表示“ ?? 怎么樣”，多用于祈 使句，后面的從句多用虛擬語氣形式 should do, 有時 should可以省略。 句式分析 本句中 it為形式主語，真正的主語是不定式短 語 to think of...，構(gòu)成 It is/was+adj.+ to do 。 活學(xué)活用 We all think is not necessary for you to have told her about the bad news. 解析 考查句式 It is+adj.+for sb. to do sth.的結(jié)構(gòu)。 D 課文原文 I never used to enjoy science,but last year I changed schools,and the science teachers at my new school are excellent. 【 例 2】 Hearing the dog barking fiercely, away . （上海高考） the thief fleeing the thief thief was fleeing the thief 解析 away置于句首且主語是名詞時，句子應(yīng) 用全部倒裝語序。while it (收縮 ) as it gets cooler. instructions reaction mixture balance aimed contracts Homework: Go into your science lab and tell your class the apparatus. 。 課文原文 Below is a description of a simple scientific experiment. D 【 例 3】 The message is very important,so it is supposed as soon as possible. （陜西高考） be sent send sent 解析 be supposed to do “ 理應(yīng)做 某事 ” ,是習(xí)慣搭配 ,而且 send與 the message之 間是邏輯上的動賓關(guān)系 ,故須用被動語態(tài)形式。 句式分析 這是一個倒裝句，正常語序是： A table with...is ： (1)在 there,here引導(dǎo)的句子中，謂語動詞是 be,exist等表示狀態(tài)的不及物動詞時，句子要全 部倒裝。 歸納拓展 (1)It is+adj.+for sb. to do sth.(該句式中，作表語的形容詞只能說明不定式的行為性質(zhì)和特 點，不能
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