2022年高考英语人教版第二轮复习知识点精讲解密16阅读理解之主旨大意题(一).docx

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1、主旨大意题是高考阅读理解的主要题型之一， 旨在考查考生对文章大意或者文章中心思想的把握和归纳能力。此类题数量较大，在15个题中约占2-3个。主旨大意题的分类 1. 从考查对象上划分，主旨大意题可分为两种篇章主旨：针对全文的主题进行提问。主题句出现在首段的居多，其次是末段。段落主旨：针对某一段或几段的主题提问。主题句可能是段落的首句、末句，也可能需要从上下文中寻 找或总结。2. 考查内容上划分，主旨大意题可分为三种主题类(内容)，考查文章或段落的主旨大意；目的类，考查文章或段落的写作目的；标题类，要求考生选出文章的最佳标题。设问特点：1. 考查全文主旨或段落大意。2. 正确选项概况范围大小恰当，

2、主旨判断准确。3. 错误选项的特点常常是太大、太窄或者偏离主题，主观臆断。4. 常以main idea, best idea, subject, mainly discuss 等词提问。常考问题：1. 中心思想类 The main point /idea of the passage is The passage is mainly about The passage mainly discusses The last but one paragraph is chiefly concerned with? Which of the following statements best expr

3、esses the main idea of the passage?2. 标题类 Which of the following is the best title of the passage? The best title for the passage would be 3. 目的类 The authors main purpose in writing the passage is to The passage is meant to . In writing this passage, the author mainly intends to【名师指导】文章主题常常可以通过文章的写作

4、方法来体现，有以下五种情况：1. 中心主题句出现在文首开门见山，提出主题，随之用细节来解释、支撑或发展主题句所表达的主题思想。这是英语中最常见的演绎法写作方式，即由一般到特殊，先提出观点，后举例论证，主题句则出现在段首的写作方法。新闻报道通常就采用这种写法。新闻报道的首句通常称为“新闻导语”，“导语”实际上就是主题句，是对全文内容的高度概括。大意题、标题一般可在第一句话找到答题依据。2. 主题句出现在文尾在细节后，归纳要点、印象、结论、建议或结果，以概括主题。这是英语中最常见的归纳法写作方式，即细节表述的句子在前，概括性的句子居后，主题句则常位于末段。经典解析 （2020年全国卷 B） The

5、 connection between people and plants has long been the subject of scientific research. Recent studies have found positive effects. A study conducted in Youngstown，Ohio，for example, discovered that greener areas of the city experienced less crime. In another，employees were shown to be 15% more produ

6、ctive when their workplaces were decorated with houseplants.The engineers at the Massachusetts Institute of Technology(MIT)have taken it a step further changing the actual composition of plants in order to get them to perform diverse，even unusual functions. These include plants that have sensors pri

7、nted onto their leaves to show when theyre short of water and a plant that can detect harmful chemicals in groundwater. Were thinking about how we can engineer plants to replace functions of the things that we use every day,explained Michael Strano, a professor of chemical engineering at MIT.One of

8、his latest projects has been to make plants glow(发光)in experiments using some common vegetables. Stranos team found that they could create a faint light for three-and-a-half hours. The light，about one-thousandth of the amount needed to read by，is just a start. The technology, Strano said, could one

9、day be used to light the rooms or even to turn trees into self-powered street lamps.In the future，the team hopes to develop a version of the technology that can be sprayed onto plant leaves in a one-off treatment that would last the plants lifetime. The engineers are also trying to develop an on and

10、 offswitchwhere the glow would fade when exposed to daylight.Lighting accounts for about 7% of the total electricity consumed in the US. Since lighting is often far removed from the power source(电源)-such as the distance from a power plant to street lamps on a remote highway-a lot of energy is lost d

11、uring transmission(传输).Glowing plants could reduce this distance and therefore help save energy.32. What is the first paragraph mainly about?A. A new study of different plants.B. A big fall in crime rates.C. Employees from various workplaces.D. Benefits from green plants.35. Which of the following c

12、an be the best title for the text?A. Can we grow more glowing plants?B. How do we live with glowing plants?C. Could glowing plants replace lamps?D. How are glowing plants made pollution-free?【答案】32. D35. C【解析】【分析】这是一篇说明文。文章主要说明了绿色植物对人们很有好处，因此麻省理工学院的工程师开发了一种发光植物。文章介绍了他们发明这种植物的过程，以及这种植物的一些优势，指出在未来发光植物

13、有可能取代路灯，达到节约能源的作用。32. 主旨大意题。根据第一段中A study conducted in Youngstown, Ohio, for example ,discovered that greener areas of the city experienced less crime. In another, employees were shown to be 15% more productive when their workplaces were decorated with houseplants.可知例如，在俄亥俄州扬斯敦进行的一项研究发现，城市绿化较好的地区犯罪率

14、较低。在另一项研究中，当员工的工作场所被室内植物装饰时，他们的工作效率会提高15%。由此可知，第一段的主旨是关于绿色植物的益处。故选D。35. 主旨大意题。根据最后一段中Lighting accounts for about 7%of the total electricity consumed in the US. Since lighting is often far removed from the power source-such as the distance from a power plant to street lamps on a remote highway-a lot

15、of energy is lost during transmission. Glowing plants could reduce this distance and therefore help save energy.可知照明约占美国总耗电量的7%。由于照明通常远离电源，例如从发电厂到偏僻公路上路灯的距离，在传输过程中会损失大量能源。发光的植物可以缩短这段距离，从而帮助节约能源。结合文章主要说明了绿色植物对人们很有好处，因此麻省理工学院的工程师开发了一种发光植物，文章介绍了他们发明这种植物的过程，以及这种植物的一些优势，指出在未来发光植物有可能取代路灯，达到节约能源的作用。由此可知，C选项“发光的植物能取代路灯吗？”最符合文章标题。故选C。