Book5 Unit1.Using language课件概要1.ppt

Book 5 Unit 1 Great scientists Only if you put the sun there did the movements of the other planets in the sky make sense. 只有你把太阳放在中心位置上，天空中其他行星的运动才能说得清楚。 only if 只有；只要。当以only引导的短语或状语从句放于句首时，为了加强语气，句子需要倒装。 1) Only if a teacher page permission is a student allowed to enter the room. 2) Only by shouting and waving his hands could he be noticed. make sense 讲得通；有道理 1)看这里，读这个句子，好像一点也讲不通 Here, read the sentence. It doesn’t seem to make sense. 2) 你编的故事我听不明白。 Your story doesn’t make sense to me. He placed a fixed sun at the centre of the solar system with the planets going round it and only the moon still going round the earth. 他把太阳固定在太阳系的中心位置上，而行星则围绕着太阳转，只有月球仍然绕着地球转。 with the planets going round it是with + 宾语 + 宾语补足语的结构，在句中作状语。这一结构在句中常作定语或状语，作宾补的可以是介词短语、过去分词、形容词、副词或动词不定式等。现将其基本形式归纳如下： With + n./pron. + 介词短语 He sat there with a smile on his face. (2) With + n./pron. + 副词 With Mr Smith away, we’ve got more room. (3) With + n./pron. + 不定式 With so much work to do, he could not go home. (4) With + n./pron. + 现在分词 The street was quiet with no buses running. (5) With + n./pron. + 过去分词 In came a man with his hands tied back. (6) With + n./pron. + 形容词 He wrote a shirt, with the neck open, showing his bare chest. spinspunspinning e.g. We span the coin to see who would have first turn. I spun around to see who had spoken. reject: e.g. If you don’t like Tom, you may reject his gift. If you don’t think the suggestion is suitable for you, you may reject it. enthusiastic e.g. She’s very enthusiastic about singing We explain our plan, and he is very enthusiastic. cautious: careful to avoid risk be cautious about/of sb./sth. e.g. The bank is very cautious about lending money. My father is a very cautious driver. Reading task “Seven Bridges of Konigsberg” and the famous “Euler path”. Skimming: What’s Euler’s puzzle? Leonhard Euler (1707-1783) B