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Unit 1 book 6At the time they were created, the Impressionist paintings were controversial, but today they are accepted as the beginning of what we call modern art.解析：what we call umodern art”从句作介词of的宾语。e.g.:经过许多天的航行之后，他们到达了如今被称之为美洲的地方。 After many days voyage, they arrived in what is called America now.1. Among the painters who broke away from the traditional style of painting were the Impressionists ? who lived and worked in Paris.解析:本句为介词短语位于句首时引起的完全倒装句式,out, in, into, down, up, away, here, now, then, there等表示方位和时间的副词 和表示地点的介词短语置于句首，且主语是名词时，句子用完全倒装。 eg:我注意到，体育馆门前站着很多手拿鲜花的学生，他们在等待 贵宾的到来。I notice that in front of the stadium stand/are standing many students holding flowers waiting for the arrival of the honored guests.At the meeting place of the Yangtze River and the Jialing River lies Chongqing, one of the ten largest cities in China.2. Henry Clay Frick, a rich New Yorker, died in 1919, leaving his house, furniture and art collection to the American people.解析：现在分词短语作结果状语。e.g.:有些学生花了太多的时间在QQ和微博上，这让老师和家长很 担忧。Some students spend too much time on QQ and microblogs making their teachers and parents worried.3. By coincidence, oil paints were also developed at this time, which made the colours used in paintings look richer and deeper.解析：非限制性定语从句对前面的整个句子进行限定。5 Without the new paints and the new technique，we would not be able to see the many great masterpieces for which this period is famous.解析：without引导含蓄虚拟条件句。e.g.:没有你及时的帮助，我不可能按时完成工作。Without your timely help, I couldnt have finished the work on time.Unit 2 book 6There are various reasons why people write poetry.解析：why引导定语从句修饰先行词reasonso其常见的基本句式： The reason why/for which is/was that.,意为的原因是”，why在定语从句中作状语。eg:他起床晚的原因是他昨晚睡得太晚了。The reason why he got up late was that he stayed up last night.1. Should the traveller return, this stone would utter speech. 解析：省略if的倒装句式。e.g,:要是明天下雨，我们会取消足球赛。(If) Should it rain tomorrow, we would cancel the football match.3 With so many different forms of poetry to choose from, students may eventually want to write poems of their own.解析：“With.to choose from属于“with+复合宾语结构。e.g.:有那么多问题要解决，我不能与你外出看电影。With so many problems to settle, I can t go out to see a film with you.Unit 3 book 6I do hope so because I want you to live as long and healthy a life as I have.解析：此句式为as + adj. + a/an+单数可数名词+ as.结构。类似此句 型的用法too/so/how+adj. + a/an+n.。e.g.:这个小伙子希望和他爷爷一样过着俭朴的生活。The man hopes to live as simple a life as his grandpa.1. Every time you feel like smoking a cigarette, remind yourself that you are a non smoker.解析：every time引导时间状语从句。3 As you know, if you do the same thing over and over again, you begin to do it automatically.解析：as引导定语从句，意为“正如，正像正如多次强调的那样，学好英语对你们今后的职业发展非常重要。As has been stressed many times, learning English well is of great importance to your career development in future.4. It is only when the disease has progressed to AIDS that a person begins to look sick.解析：本句为强调句型。5 It is no good crying over spilt milk. 解析：It is no good/use doing sth.做某事无用。Unit 4 book 6There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.解析：There is no doubt that.毫无疑问，that引导同位语从句。e.g.:毫无疑问，是老师的鼓励给了我继续学习的勇气。There is no doubt that it was the teachers encouragement that gave me the courage to go on with my study.1. Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries.解析：even if即使;尽管,引导让步状语从句。2. It is OK to leave an electrical appliance on so long as you are using it一if not, turn it off!解析：so long as = as long as H要，引导条件状语从句。e.g.:只要我们不失去信心，继续努力，我们一定能克服困难，实现 目标。As long as we dont lose heart and keep on trying, we are sure to get over difficulties, and achieve our aims.3. They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.解析：宾语从句中的强调句型。e.g.:我不知道是什么事情使他那么伤心。I dont know what it is that made him so upset.Unit 5 book 6I was about to go back to sleep when suddenly my bedroom became as bright as day.解析：be about to do.when正要这时。1. The other two climbed down into the crater to collect some lava for later study, but this being my first experience, I stayed at the top and watched them.解析:this being my first experience独立主格结构，在句中作原因状语。 eg:他上课专心听讲，眼睛紧盯着黑板。He was listening attentively in class, his eyes fixed on the blackboard.2. It is said that this boy, who had a great gift for languages and persuasion, is the father of the Manchu people.解析：It is said that.据说 ,是一个固定句式。It is said that.意为 “据说”, it为形式主语，指代that引导的从句。该结构还可以 改变成sb.is said to do结构。使用时注意不定式的一般式、进行式或 完成式在结构上的变化。3. Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast.解析：现在分词完成时作状语。句中having collected and evaluated the information是现在分词的完成式在句中作状语，表明从句动作发生在 主句动作之前。eg:核实所有的门都锁好之后，史密斯先生就去伦敦度假了。Having checked all the doors were locked, Mr Smith left for London on holiday.
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