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Reading II,,what are they?,dinosaurs,milu,dodos,Guess: What the reasons might be for their disappearance?,Using language,Reading,1. When did dinosaurs live? Tens of millions of years ago. 2. When did dinosaurs die out? About 65 million years ago.,3. How did dinosaurs die out? A large rock hit the earth and put too much dust into the air. The earth got too hot to live on.,Tens of millions of years ago, long before humans came into being.,A bird-like dinosaur which could not only run but also climb trees.,Maybe that’s because a large rock hit the earth or because the earth got too hot to live on.,Detailed Reading,1. They lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time. [點撥1] 本句是一個由and連接的并列句，其中，long before 引導(dǎo)時間狀語從句，進一步解釋說明tens of millions of years ago，意為“在……之前很久”。注意：before long 意為“不久以后”。,Language points,,[點撥2] on the earth. 在地球上。在earth, sun, moon等表達世界上獨一無二的名詞 前, 要加the。 [點撥3] come into being的意思是“開始存 在;發(fā)生”。,l例：It ___ long before we___ the result of the experiment. A. will not be; will know B. is; will know C. will not be; know D. is; know,拓展：before long 不久以后,2. When scientists inspected the bones, they were surprised to find that these dinosaurs could not only run like the others but also climb trees. [點撥] 本句中的to find that .是不定式作原因狀語。不定式用來表原因時，常修飾表示情感、心理狀態(tài)、性格等的形容詞，如：,3. Some scientists think it came after an unexpected incident when a huge rock from space hit the earth and put too much dust into the air. [點撥] 本句中when引導(dǎo)定語從句，其先行詞為incident。關(guān)系副詞when 的先行詞一般是表時間的名詞，如: He came last night when I was out. 但有時并不直接是表時間的名詞，如：,4. According to a UN report,…. according to 根據(jù), 據(jù)…說 According to John, the bank closes at 4 p.m. Each man will be paid according to his ability.,