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1、Lesson 27Planet Danny,课前自主预习,课堂互动探究,Unit 5 Look into Science,课前自主预习,Lesson 27Planet Danny,certain,certainly,unless,double,望远镜,太阳的； 关于太阳的,神秘事物； 奥秘,at night,even if,look through,belong to,come out,look for,Lesson 27Planet Danny,转动,太阳系,错误的一端,数十亿计的；大量,Lesson 27Planet Danny,turns,around,looks,through,wer
2、e,Lesson 27Planet Danny,studying,dont,think,unless,worth,even,a,try,Lesson 27Planet Danny,if,课堂互动探究,句型透视,1He looks through the telescope. 他通过望远镜看。,探究 look through是动词短语，意为“_”， through是介词，后面接名词、代词作宾语。 The boy is looking through the window. 那个男孩正在通过窗户看。,Lesson 27Planet Danny,拓展 look through还可译为“浏览，快速看”
3、。,通过看,活学活用,12017广东 If you want to know more about space, please _ the book A Brief History of Time. Alook through Blook around Clook after Dlook down upon,A,Lesson 27Planet Danny,2I dont think you can find one unless you have a bigger telescope. 我认为你不能找到一颗(行星)，除非你有一架更大的望远镜。,Lesson 27Planet Danny,探究
4、(1)unless用作_词，相当于“ifnot”。由unless引导的_状语从句中，谓语动词只能是肯定式，表示强烈的否定条件；它也遵循“主将从现”的原则，即主句是一般将来时态，从句用一般现在时态。 (2)本句中宾语从句在think 之后，且主句的主语又是第_人称，在否定从句时，句子的否定体现在_句中，这种现象叫否定前移。遵循“否定前移”的其他常用单词还有suppose, believe, expect等。,连,条件,一,主,Lesson 27Planet Danny,2(1)2017河北 Mum wont let Dick go out_ he promises to be back by 1
5、0：00 tonight. AifBWhen Csince Dunless,D,Lesson 27Planet Danny,(2)2017达州 Does your mother have a hobby? No，_ you call going shopping a hobby. Aunless Bbecause Calthough Dif,A,3Well, its worth a try, even if I dont find a planet. 嗯，值得一试，即使我找不到行星。,Lesson 27Planet Danny,探究 (1)worth作_词，意为“值得的”。“be worthn
6、.”意为“值”；be (well) worth doing sth.意为“(很)值得做某事”。 This book is worth reading. 这本书值得一看。 The film is well worth seeing. 这部电影很值得看。 (2)even if 引导_状语从句，意为“即使；纵然”。,形容,让步,Lesson 27Planet Danny,拓展 although, though, even if和even though都表示“虽然，即使，尽管”，且都可以引导让步状语从句。although和though语气较弱，even if和even though 带有强调意味且语气
7、更强。 Although it was very cold, he went out without an overcoat. 虽然天很冷，但他没有穿大衣就出去了。 Even though it was raining, she walked to work. 即使下着雨，她也走着去上班了。,注意 although, though, even though, even if均不与but连用，但可以和yet连用。,3(1) 2017恩施 电视节目最强大脑很值得一看。 The TV program Super Brain is well_ _,worth,Lesson 27Planet Danny,(2)2017东营 WeChat Pay(微信支付) makes our life convenient. We can buy things_ we dont take any money. Aunless Bbecause Ceven if Dso that,C,doing,