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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C,and D.Choose the one that fits best according to the information given in the passage. 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. 相似文献
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As one of the core components of turbocharger or micro-turbine, radial turbine has the features of small size and high rotation speed. In order to explore the design method and flow mechanism of the turbine with a volute, a centimeter-scale radial turbine with a vaneless air-inlet volute was designed and simulated numerically to investigate the characteristics of the coupled flow field. The results show that the wheel efficiency of single passage computation without the volute is 80.1%. After accounting for the factors of the loss caused by the volute and the interaction between each passage, the performance is more accurate according to the whole flow passage computation with the volute. High load region gathers at the mid-span and the efficiency declines to 76.6%. The performance of the volute whose structure angle of the trapezoid section is equal to 70 degree is better. Unlike uniform inlet condition in single passage, more appropriate inlet flow for the impeller is provided by the rectification effect of the volute in full passage calculation. Flow parameters are distributed more evenly along the blade span and are generally consistent between each passage at the outlet of the turbine. 相似文献
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Directions:Read the following passage questions or unfinished statements.For marked A,B,C and D.Choose the The passage is followed by several each of them there are four choices one that fits best according to the information given in the passage. Why do men die earlier than women?The latest research makes it known 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. It has been said before,but experiencing it myself has made me want 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. At the time,I would go out in the evening with my parents.But this time 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. The way people hold to the belief that a fun-filled,pain free life equals happiness actually reduces their chances of ever attaining real happiness.If 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. Mr.Peter Johnson.aged twenty.three,battled for half an hour to escape from his trappecl car yesterday when it landed upside down in three feet of water.Mr.Johnson took the only escape route-through the boot(行 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. A fit and healthy teenage rugby player died 12 hours after taking treatment for acne(粉刺),an officer,Mary Hassle,said today.She said 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the 相似文献
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一、主旨大意题①What is the best title of the passage?②What is the main idea of the passage?③What does the passage mainly talk about?④What is the main idea of paragraph...?方法:1.通览全文,分析文章结构,把握作者观点、态度及语气;2.找出文章中心所在,如首段、尾段;3.用准确、简洁的文字概括归纳答案,防止以偏概全或 相似文献
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廖小红 《中学英语园地(高三版)》2006,(12)
高考“阅读理解”题主要考查考生把握文章主题和理解中心思想的能力,要求考生在理解全文的基础上能对文章所述内容进行高度的概括或总结。其考查范围主要有以下三个方面。一、文章的主旨大意考查文章主旨大意的题目时常用以下设问句式:The m ain idea/key pointofthis passage is that.The passage is m ainly about.The statem entthatbestrelates the m ain idea ofthe passage is.From the passage we can learn/conclude that.W hich of the following statem ents best expresses the m ain idea ofthe passage?W hatis the textm a… 相似文献
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Directions:Read the following passage.Answer the questions according to the information given in the passage and the required words limit. From bankers to factory staff,employees in the West face the bleak prospect of losing their jobs as a global recession starts to bite.For colleagues in the East the pain is more likely to come through a pay cut. 相似文献
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Directions:Read the following passage.Answer the questions according to the information given in the passage and the required words limit. Fast food and too much TV time shouldn’t take all the blame for the weight problems.A group of researchers say that a number of aspects of 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. Don’t try telling Mark Bouch that dogs are man’s best friends.His pet Keilar helped land him in prison. He dropped his package of amphetamine(安非他明) at the feet of the police as they began a search of his house. Bouch,26,was confident that the two officers would not find the 相似文献
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Part V Cloze（15 minutes）
Directions ：There are 20 blanks in the following passage.For each blank there are four choices marked A, B, C and D on the right side of the paper.You should choose the ONE that best fits into the passage.Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre. 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage.Shundagarh is a village on India’s east-facing coast.It is a village of simple mud and grass houses built on the beach just above the waterline.The Khaddar Hills rise immediately behind the village,to a height of one hundred and fifty meters.A simple,good-hearted old man,whose name was Jalpur,farmed two small fields on the very edge of these hills.From his fields he could see the 相似文献
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Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage. Healthy knees aren’t the main consideration in choosing high heels,but new research says chunky heels are just as bad for the knees as spindly stilettos(细高跟鞋)."It takes a long time to feel the effects of knee osteoarthritis(骨关节炎)—and once you do it,it is too late,"said Dr.Casey Kerrigan,leading researcher of the study and associate professor at Harvard 相似文献