高中英语七选五考前训练.docx

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1、七选五考前训练（一）Picture this: youve just settled into your workday and pulled up that big report you need to finish, when a friend sends you a couple of celebrity videos on WeChat. And then the next thing you know, an hour has gone by while that big report sits, ignored, on your desk. So how does that hap

2、pen?To understand this, we conducted a series of studies with 6,445 people. We found the order and types of content we consume can affect our decision to keep consuming similar content. But what drives this effect? 2 When something feels more accessible, it becomes easier to process, leading us to e

3、njoy it more.The research also explains why its so easy to get distracted by apps on social media at work.3 They offer bite-sized content that makes it easy to quickly consume several videos in a row. They often automatically suggest similar content, and many of them even automatically start playing

4、 similar videos, reducing the potential for interruptions.4 To fight the pull, make an effort to just watch one video. If you really want to watch multiple in a row, choose videos that seem unrelated. You can also use a social media timer that urges you to take a break after a certain amount of time

5、, or even just consciously remind yourself to consume different kinds of content.So, if youre struggling to climb out of a rabbit hole, try to find ways to reduce the similarity, repetitiveness, and relatedness of the content youre consuming. 5 Once you manage to break free, youll be back at that bi

6、g report in no time.A. It can be difficult, but its not impossible.B. You figure youll just take a few minutes to watch them.C. Accessibility refers to how familiar a given kind of content feels.D. These platforms are designed to trap viewers in a social media rabbit hole.E. The research suggests th

7、at there are factors increasing the accessibility of similar media.F. The good news is, a better understanding of the problem can give us the tools to escape it.G. This will become a problem if it keeps you from doing the things you actually want to be doing.（二）Pets are like our family members and t

8、heir good health is very important to all pet owners. Just as the pollutants in the air affect our health, they can affect our pets too.57% of dogs exposed to higher pollution levels developed brain diseases and showedsigns of neuro problems. While a more recent study found that cats with breathing

9、problems were more likely to live in households with higher indoor air pollution.Air purifiers G争化器）have been brought into use in recent years. They work to remove harmful chemicals from the air. 2 But are they safe for pets? How can we ensure that they arent harming our furry friends?3 The physical

10、 safety of using a mechanical device around pets is what we have to pay attention to. There is an existing risk of our pet becoming trapped in the electrical wire of our air purifier. Air purifiers are designed to be used in the home around children and their internal mechanisms should also be safe

11、from small tails of our pets and other parts of their bodies. 4Whether the air purifier improves or damages the health of our animals is also something we have to consider. The air purifiers are safe for pets, but only if they do not produce any ozone byproduct （臭氧副产品）.5 We should always stay away f

12、rom the ones that produce evenminimal quantities.Picking the wrong air purifier type can quickly make things worse for our pets. On the other hand, picking the correct air purifier can lead to a big increase in the quality of life for them.A. At present many homes are equipped with these useful devi

13、ces.B. Before buying an air purifier, we should keep two aspects in mind.C. Pet owners always pay close attention to the physical health of their pets.D. Even the smallest pets shouldnt be able to access the insides of air purifiers.E. This greatly depends on the type of air purifier and air cleanin

14、g technology used.F. So always check the product specifications and try to find a model that does not produce any carbon monoxide.G. A 2008 study published in Brain and Cognition showed that dogs brains were negatively affected by the heavy pollution levels.（三）Your Health and 5GThe fifth generation

15、technology of cellular data （蜂窝数据）or 5G, promises to bring lightning-fast data connection speeds. Much faster than Internet connections currently offered in many homes. However, not everyone is excited about 5G service.2 There are even protests aimed at slowing down or even stopping companies from i

16、nstalling the equipment necessary for 5G service. Why are people so worried?To understand the possible health risks of 5G, it is important to understand how the new service sets apart from existing 3G and 4G.3 5G uses a different part of the electromagnetic spectrum（电磁波谱）.The signals have short wave

17、lengths measured in millimeters called millimeter waves. Millimeter waves are perfect for high-speed data but small transmitters （发射台）and antennas （天线） must be put up everywhere to ensure good connections. This presents a cause for concern.5G service means new transmitters and antennas everywhere. C

18、ertainly, it will mean that the amount of electromagnetic radiation （辐射）that people are exposed to will increase. Radiation exposure sounds dangerous, but it all depends on the type of radiation, the strength and the amount of time that people are exposed to. Sunlight is a type of radiation, and exp

19、osure for too long can cause a sunburn. 4Many studies have been done to explore whether iow-level exposure to radio waves, microwaves, or millimeter waves has negative health effects. So far, there is no conclusive evidence. 5 However, scientists will continue to study the long-term effects of expos

20、ure to electromagnetic radiation.A Its important to consider risks when using 5G.B. Will this new technology bring new health risks?C. The main difference is the new frequency of the signals to transmit data.D. High-speed service has the potential to change many technologies.E. Repeated exposure ove

21、r time can also lead to the likeliness of skin cancer.F. As long as producers follow safety regulations, 5G should not cause a health risk.G. Some people worry that the technology behind 5G might present serious health risks.参考答案：（-）本文是一篇说明文。文章主要说明了人们常常因观看视频等媒体而中断工作这一现象，并 分析了产生这种现象的原因以及对此提出了解决方法。1.

22、B 根据第一段第一句 uPicture this: youve just settled into your workday and pulled up that big report you need to finish, when a friend sends you a couple of celebrity videos on WeChat.（想象一 下这样的场景：你刚刚进入工作状态，拿出要完成的重要报告，这时一个朋友在微信上给你 发了几段明星视频。）”以及空处后面的句子“And then the next thing you know, an hour has gone by whi

23、le that big report sits, ignored, on your desk. So how does that happen?（然后你矢口道的下 件事是，一个小时过去了，那份重要的报告依然被搁置在你的桌子上，置之不理。这是怎么 发生的呢？ ”可知，B选项“你觉得你只需要几分钟就能看完”过渡前后句，符合语境。故 选B。2. E 根据第二段第一句 To understand this, we conducted a series of studies with 6,445 people.（为 了理解这一点，我们对6445人进行了一系列研究。）”以及第二段第三句But what d

24、rives this effect?（但是什么导致了这种结果呢？）”可知，上文设问是什么导致了这种结果，由此可推 知该空旨在说明这一问题的答案。因此E选项“研究表明存在增加相似媒体内容可见性的因 素”符合语境，且 E 选项中的“accessibility” 呼应下文 “When something feels more accessible, it becomes easier to process, leading us to enjoy it more.（当某些东西感觉更容易见到时，它就会 变得更容易处理，导致我们更喜爱它中的“accessible”。故选E。3. D 根据第三段最后两句T

25、hey offer bite-sized content that makes it easy to quickly consume several videos in a row. They often automatically suggest similar content, and many of them even automatically start playing similar videos, reducing the potential for interruptions.（他们提供时长 较短的内容，使快速地连续观看儿个视频很容易。它们通常会自动推荐类似的内容，其中许 多甚

26、至会自动播放类似的视频，从而减少了被打断的可能性。）”可知，D选项“这些平台旨 在把观众困在社交媒体的兔子洞里”是对后文的概括，符合语境。故选D。4. F 根据倒数第二段空处后面的内容 “To fight the pull, make an effort to just watch one video. If you really want to watch multiple in a row, choose videos that seem unrelated. You can also use a social media timer that urges you to take a br

27、eak after a certain amount of time, or even just consciously remind yourself to consume different kinds of content.（为了对抗这种吸引力，要努 力只看一个视频。如果你真的想连续看多个视频，那就选择一些看起来不相关的视频。你也 可以使用社交媒体计时器，敦促你在一定的时间后休息一下，或甚至只是有意识地提醒自己 阅读不同类型的内容。）”可知，该段主要介绍对抗社交媒体吸引力的几种方法，空处应为一 个转折句，将本段内容与前文区分开来，因此F选项“好消息是，更好地理解这个问题能帮 助我们利用手

28、段摆脱这种吸引力”符合语境。故选F。5. A 根据最后一段第一句So, if youre struggling to climb out of a rabbit hole, try to find ways to reduce the similarity, repetitiveness, and relatedness of the content youre consuming.（所以， 如果 你正挣扎着从兔子洞里爬出来，试着找到减少你所观看内容的相似性、重复性和相关性的方 法。” 以及最后一句 Once you manage to break free, youMl be back at

29、 that big report in no time.（一旦你设法挣脱，你很快就会回去完成那份重要的报告可知，空处旨在说明上文提到 的方法虽然困难，但也不是完全不可能。因此A选项“这可能很难，但也不是不可能”符合 语境。故选A。（二）本文是一篇说明文。文章主要介绍了宠物的身体健康也会受到空气质量的影响，因此，人 们在选择空气净化器时，应选择也适合宠物的空气净化器，这将有助于宠物的身体健康。1. G 根据第二段空处后面的句子 “57% of dogs exposed to higher pollution levels developed brain diseases and showed s

30、igns of neuro problems.（暴露在高污染水平下的57%的狗，会患上脑部疾 病，并出现神经问题的迹象。）”可知，此处说的是一项研究结果。所以G项“A 2008 study published in Brain and Cognition showed that dogs, brains were negatively affected by the heavy pollution levels. （2008年发表在大脑与认知杂志上的一项研究表明，严重污染使狗的大 脑受到负面影响符合语境。故选G。2. A 根据第三段前两句 Air purifiers have been bro

31、ught into use in recent years. They work to remove harmful chemicals from the air.（近年来，空气净化器已投入使用。他们致力于从空气 中去除有害化学物质。）”以及倒数第二句But are they safe for pets?（它们对宠物安全吗？）” 可知，此处说的“they”代指的是“air purifiers”，也就是选项中的“these useful devices。所 以 A 项 “At present many homes are equipped with these useful devices.（目

32、前许多家庭都配备了 这些有用的设备符合语境。故选A。3. B 根据第四段空处后面的句子 “The physical safety of using a mechanical device around pets is what we have to pay attention to.（在宠物周围使用机械设备，它们的人身安全是我们必须注意 的。）”以及第五段第一句 Whether the air purifier improves or damages the health of our animals is also something we have to conside匚（空气净化器是否能

33、改善或损害我们动物的健康也是我们 必须考虑的问题可知，这两段分别介绍了购买空气净化器的两个注意事项。所以B项uBefore buying an air purifier, we should keep two aspects in mind.（在购买空气净化器之前， 我们应该记住两个方面。）”符合语境。故选B。4. D 根据空处上一句Air purifiers are designed to be used in the home around children and their internal mechanisms should also be safe from small tails

34、 of our pets and other parts of their bodies.（空气净化器适用于有小孩的家庭，其内部构造对我们宠物的小尾巴和其他身体部位也应是 安全的可知，这里介绍的是空气净化器对宠物的安全问题。所以D项“Even the smallest pets shouldnt be able to access the insides of air purifiers.（即使是最小的宠物也不能进入空气净 化器的内部符合语境。故选D。5. E 根据空处上文 “The air purifiers are safe for pets, but only if they do no

35、t produce any ozone.（空 气净化器对宠物是安全的，但前提是它们不会产生任何臭氧副产品及下文“We should always stay away from the ones that produce even minimal quantities.（我6应该远离为日些即使有 害气体排放量极小的产品。）”可知，此处是对选择哪种类型的空气净化器提供建议。所以E 项 “This greatly depends on the type of air purifier and air cleaning technology used.（这在彳艮大程 度上取决于空气净化器的类型和使用的

36、空气净化技术。）”符合语境。故选E。（三）本文是一篇说明文。文章主要说明了 5G技术是否对人体健康造成影响的问题。1. D 根据第一段前两句The fifth generation technology of cellular data or 5G, promises to bring lightning-fast data connection speeds. Much faster than Internet connections currently offered in many homes.（第五代蜂窝数据技术有望带来闪电般的数据连接速度，比目前许多家庭提供的 互联网连接快得多可知，

37、空处应该是接着介绍5G这种高速服务的好处，从而与下文uHowever, not everyone is excited about 5G service.（然而,并不是所有人都对 5G 服务感到兴 奋。）”构成转折关系。因此D选项“高速服务有可能带来许多技术变革”符合语境。故选D。2. G 根据第二段空处后面的内容 “There are even protests aimed at slowing down or even stopping companies from installing the equipment necessary for 5G service. Why are peo

38、ple so worried?（甚 至出现了旨在减缓或阻止企业安装5G服务所需设备的抗议。为什么人们如此担心？）”可知， 本段主要介绍人们对5G服务的担心。G选项“一些人担心5G背后的技术可能会带来严重的 健康风险”能统领本段，符合语境。且G选项中“worry”对应下文中的“worried”。故选G。3. C 根据第三段第句 “To understand the possible health risks of 5G, it is important to understand how the new service sets apart from existing 3G and 4G.（要了

39、解 5G 可能带来的健康风险，重要 的是要了解新服务与现有3G和4G的区别。）”以及空处后面的句子“5G uses a different part of the electromagnetic spectrum. （5G使用的是不同的电磁波谱。）”可知，空处应该说明5G与现 有3G和4G的区别。因此C选项“主要的区别是传输数据的信号的新频率”符合语境。故选 CoE 根据倒数第二段中的 “Sunlight is a type of radiation, and exposure for too long can cause a sunburn.（阳光是一种辐射，长时间暴露在阳光下会导致晒伤。）

40、”可知，上文提到了长时间暴 露在阳光下也能导致晒伤。空处为本段最后一句，应承接上文继续说明其后果，因此E选项“长时间反复暴露（在阳光之下）也会导致患皮肤癌的可能性”符合语境。故选E。4. F 根据最后一段前两句 Many studies have been done to explore whether low-level exposure to radio waves, microwaves, or millimeter waves has negative health effects. So far, there is no conclusive evidence.（已经做了许多研究来探索低水平暴露在无线电波、微波或毫米波下是否 会对健康产生负面影响。到目前为止，还没有确凿的证据。）”可知，上文提到没有确凿证据 证明低水平的辐射会对健康产生负面影响，即论述5G对人体是否会造成健康风险的问题。 故F选项“只要生产商遵守安全法规，5G应该不会造成健康风险”符合语境。故选F。