1、专题2 第3讲A根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。(2020云南省昆明市第一中学高三模拟)Easy Ways to Improve Indoor Air QualityIndoor air quality tends to be worse in the winter months.Thats because there is often no flow of fresh air from the outside. 1 However，you can reduce the number.Here are some ways you can use
2、 to improve air quality inside your home and hopefully improve your allergy symptoms. Keep it clean. 2 It is because good indoor hygiene(卫生) can greatly cut down on dust and animal hairs，says Dr.BuSaba.Your cleaning efforts should focus on strategies to reduce the amount of mold(霉菌)，pet hairs，and du
3、st in your home. 3 Even in the cold months，open windows from time to time to allow fresh air to move into the house.Also，move potential air pollutant out by using fans in the kitchen to remove cooking fumes. Keep the greenery outdoors.In-door plants are pretty，but they can also collect and promote t
4、he growth of bacteria.So，if indoor allergens are a problem，youll want to avoid them.While some plants are helpful in improving indoor air quality，they are still allergy causes for many people. 4 Invest in an air purifier.If youre allergic to indoor allergens and cant control the source of the proble
5、m，it may help to use an air purifier. 5 Youre probably not going to be able to remove these allergens completely，but you can cut down on them.ALet the fresh air in.BUse indoor facilities properly.CIt is a must in bitterly cold weather.DA clean house may be a healthier house.EOn balance，they create m
6、ore problems than they help.FFor example，youre unwilling to give up your family pet.GIts probably impossible to remove all the allergens inside your home.【答案】1.G2.D3.A4.E5.F【解析】这是一篇说明文。介绍改善室内空气质量的简易方法，如保持卫生；多通风；不在室内养绿植；买一台空气净化器等。1段中题。根据设空后的转折关系可知，本空与本段第一句属同一范畴的语义，设空前讲冬季室内空气质量较差，室内缺乏新鲜空气流通。G项提到Its pr
7、obably impossible to remove all the allergens inside your home.(不可能去除家里所有的过敏原。)，符合文意。故选G。2段中题。根据标题“Keep it clean.”以及设空后陈述了清洁的室内卫生能大大减少灰尘和动物毛发。D项提到 A clean house may be a healthier house.(一个干净的家可能是一个健康的家。)空后句子与D项形成因果关系。故选D。3段首题。该段第二句提到“.open windows from time to time to allow fresh air to move into t
8、he house.”(要时不时的开窗让新鲜的空气进到房里。)，由此可知，本段主张开窗换气，A项提到Let the fresh air in.(让新鲜的空气进来。)符合文意。故选A。4段尾题。该段采用了对比的方式，第二句提到虽然绿植很好看，但也会相应的滋生细菌。第四句提到虽然能改善室内的空气质量，但还是有可能成为过敏原。由此判断，设空句与前句也应形成转折关系，与好处相比，危害更大。故选E。5段中题。举例解释空前句子。要是你不能改变室内的过敏原，比如自己喜欢的宠物，那可以通过购买净化器来降低过敏原带来的影响。故选F。B根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项
9、。(2020山东省实验中学一模)Mammals(哺乳动物)weighing sixty kilograms have an average brain size of 200 cm2，modern man averaging 1,2001,400 cm2.We are so fond of our high intelligence that we assume that when it comes to brain power，more must be better. 6 The fact is that a huge brain is a huge consumption of energ
10、y on the body.Its not easy to carry around.Its even harder to provides energy.In modern man，the brain accounts for about 23%of total body weight but it consumes 25%of the bodys energy when the body is at rest，apes only 8%of rest-time energy.Early humans paid for their large brains in two ways.First，
11、they spent more time for food.Second，their muscles grew smaller and weaker. 7 Achimpanzee(黑猩猩) cant win an argument with a modern man，but it can tear the man apart like a rag doll. 8 That way，its easier to find food or enemies.Besides.their arms are freed for other purposes，like throwing stones or s
12、ignaling.As a result，humans can perform very complex tasks with their hands. 9 The bone structure of our ancestors developed for millions of years to support a creature that walked on all fours and has a relatively small head.Adjusting to all uptight position was quite a challenge，especially when th
13、e bones had to support an extra-large skull.Humankind paid for its broad vision and skillful hands backaches and painful necks.We assume that a large brain makes huge advantages. 10 But humans enjoyed all of these advantages for a full 2 million years during which they remained weak and marginal cre
14、ature.Thus humans who lived a million years ago，despite their big brains and sharp stone tools，lived in constant tear of meat-eating animals.AUnfortunately，that is not the case.BYet walking upright has its disadvantage.CHowever，it results in certain growing pains.DActually，further more needs to be f
15、ound out and tested.EAnother unique human characteristic is that we walk upright.FIts hardly an obvious conclusion that this is a good way to survive.GIt seems obvious that these have made humankind the most powerful animal on earth.【答案】6.A7.F8.E9.B10.G【解析】这是一篇说明文。文章主要介绍了人类大脑比较其它动物聪明的原因，同时讲述远古时代人类所处
16、的弱势情况。6段尾题。根据前一句“We are so fond of our high intelligence that we assume that when it comes to brain power，more must be better.”可知，我们非常喜欢我们的高智商，所以我们认为当涉及到脑力的时候，更多的脑力一定会更好；再根据第二段第一句“The fact is that a huge brain is a huge consumption of energy on the body.”可知，事实上，一个巨大的大脑是对身体能量的巨大消耗。由此可知，空格前后之间是转折关系，所以
17、，A项“不幸的是，事实并非如此。”承上启下，符合语境。故选A项。7段中题。根据上文“Early humans paid for their large brains in two ways.First，they spent more time for food.Second，their muscles grew smaller and weaker.”可知，早期人类用两种方式经营自己的大脑。首先，他们花更多的时间吃饭。其次，他们的肌肉越来越小，越来越弱。F项“很难说这是一个很好的生存方式。”与上文紧密衔接，符合语境。故选F项。8段首题。根据后一句“That way，its easier to
18、find food or enemies.”可知，这样，就更容易发现食物或敌人。E项“人类的另一个特点是直立行走。”与下文陈述的直立行走的优势相照应，紧密衔接，符合语境。故选E项。9段首题。根据第四段第三句“Adjusting to all uptight position was quite a challenge，especially when the bones had to support an extra-large skull.”可知，调整到直立的姿势是一个很大的挑战，特别是当骨头必须支撑一个超大的头骨时。B项“但是直立行走有它的缺点。”引起下文，符合语境。故选B项。10段中题。根
19、据前一句“We assume that a large brain makes huge advantages.”可知，我们认为一个大脑袋有巨大的优势。G项“显然，这些使人类成为地球上最强大的动物。”与上文紧密衔接，其中的代词“these”与指代前面的“huge advantages”，符合语境。故选G项。C根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。(2020湖北省武汉重点高中高三模拟)Hello! My name is Aurora Carlson.I was born in England，educated in both the French an
20、d American schooling systems，and lived most of my life in various places around the United States. 11 This undying love for everything Chinese started when I was 16.On somewhat of a whim(奇想)，I decided to spend a year as an exchange student in Beijing，attending a local Chinese High School and living
21、with a wonderful Chinese host family. 12 After just one year，I became mad about everything in here. 13 I received a BA.in Chinese and East Asian Studies from the University of Wisconsin-Madison，and can speak and write Mandarin Chinese on a near-native level.Though I am fully aware of the land and ha
22、ve traveled quite a lot throughout the country，my curiosity in the studies of China never fades. 14 A place that once upon a time seemed such a faraway land now feels like a second home；a home with the most welcoming of neighbors.In my free time，I love to do yoga and cook. 15 I hope you join me in R
23、ediscovering China，to explore this wonderful place from a unique foreign viewpoint.AI graduated from University of California，Berkeley.BI find it really hard to put down Chinese history books.CUnfortunately，I have not yet mastered Chinese cuisine.DI have landed at CCTV by way of a strong interest in
24、 China.EOn the contrary，it seems that the more I learn，my interest grows even stronger.FBefore this，I really had no knowledge or connection to this faraway land，just young curiosity.GSince then，my life has seemed to focus on gaining a better understanding of the country and its people.【答案】11.D12.F13
25、.G14.E15.C【解析】本文是记叙文。是Rediscovering China节目的主持人Aurora Carlson的自我介绍。她讲述了来到中国的学习经历和她对中国的浓厚兴趣。11段首题。选项D意思为：由于对中国有着浓厚的兴趣，我来到了中央电视台。下一句提到“This undying love for everything Chinese started when I was 16”，选项D是承接下文，“undying love for everything Chinese”和选项D中“a strong interest in China”语义相关联。故选D项。12段中题。此题是代词指代
26、线索。选项F意思为：在此之前，我对这片遥远的土地真的一无所知，也没有任何联系，只有年轻的好奇心。选项F中的this即是指上文的“as an exchange student in Beijing，attending a local Chinese High School and living with a wonderful Chinese host family”；“before this”与下一句中的“After just one year”都是表示时间上的顺序。故选F项。13段首题。选项G意思为：从那以后，我的生活似乎就专注于在更好地了解这个国家和人民。选项G中since then是承上
27、启下，下文I received a BA.in Chinese and East Asian Studies from the University of Wisconsin-Madison，and can speak and write Mandarin Chinese on a near-native level.是叙述作者对中国更进一步的了解。故选G项。14段中题。选项E意思为：相反，似乎我了解得越多，我的兴趣就越浓。选项E中“my interest grows even stronger”和上一句“my curiosity.never fades”语义相同，因此选项E是顺承上一句的话题。故选E项。15段中题。选项C意思为：不幸的是，我还没有精通中国菜肴。上一句提到“喜欢烹饪”，选项C中提到“还没有精通中国菜肴”，上下句之间话题转换，选项C中unfortunately用于转换话题。故选C项。
