新高考赢在阅读高二英语时文阅读专版(含原文翻译及答案解析)

新高考赢在阅读高二英语时文阅读专版（含原文翻译及答案解析）

A

Josh Gad's Olaf showed insanely hot skills singing \"Unmeltable Me\" for \"Frozen II\". But the

hilarious (欢闹的) tune never made it into the animated hit: It was cut from the movie after his

vocals were recorded and storyboards had been drawn up. The missing: “Unmeltable Me” is

revealed now at usatoday.com, ahead of the home release of “Frozen II”, which features the

deleted scene as an extra.

The ditty was the first song written for the sequel. The new song features Gad's Olaf singing

style, playing harpsichord (羽管键琴) accompaniment. The instrument was requested by directors for comedic reasons. The harpsichord arrangement made it funny and different. The filmmakers originally wanted “Unmeltable Me” to explain an important story point – why Olaf no longer needed the magical “flurry” cloud Elsa had created at the end of \"Frozen\" to keep the snowman from melting

in warm weather.

Creating the flurry effect was so difficult for the animators that the directors decided Elsa would have perfected a permafrost coating for Olaf by the second movie. The scene features Olaf doing just about everything to show off his new permafrost coating, from sticking a lit candle into his head to placing his head in a Sterno-heated buffet tray.

Olaf's audience in the scene is a group of dignitaries who have traveled to Arendelle from around the world to meet the powerful Elsa at a state dinner. Elsa and Anna are held up, so Olaf fills time entertaining the assembled guests with the song. Sadly, “Unmeltable Me” was cut before it could be fully animated.

Gad’s Olaf still received his big song in “Frozen 2” singing “When IAm Older” happily.

“Unmeltable Me' is definitely fun, but that’s show business,” says Lopez, who especially loves how Olaf ends the song on an unusual high note.

1. What can we learn from the song “Unmeltable Me” in the first paragraph?

A. The song “Unmeltable Me” was sung by Elsa.

B. The song can make this movie into a animated hit.

C. The song was created for the movie.

D. The song was recorded in the movie at last.

2. What does the underlined word “revealed” in Paragraph 1 probably mean?

A. Show. B. Hide. C. Create. D. Delete.

3. What is the purpose of using permafrost coating?

A. To entertain the audience.

B. To prevent Olaf from melting.

C. To make the movie funny.

D. To explain show business.

4. What can we know from the passage?

A. This movie is directed by Josh Gad.

B. Olaf likes his new permafrost coating.

C. Josh Gad’s attitude is passive because his song was cut from the movie.

D. The scene of the song is not mentioned in the article.

B

Google’s Search Engine Can Recommend Your Favorite Shows and Movies

Google wants to help smartphone users find new (and old) favorite TV shows and movies to

watch.

The Mountain View, Calif.-based tech giant announced an update on Thursday for its search

engine on mobile, which will serve U.S. users with personalized TV and film recommendations

across different streaming services.

Here’s how to get started: Mobile users who visit Google.com or Google’s search app simply

have to type in a phrase including “what to watch” or “good shows to watch.” Google then serves up the names of TV shows and film titles across different genres, from somewhat older titles, like Desperate Housewives and Buffy the Vampire Slayer to more recent releases, including Disney’s live-action Aladdin and Avengers: Endgame. Then, Tinder style, users will swipe to “Like” or“Dislike” them.

Once that’s done, users pick which streaming services they subscribe to, including Netflix, Hulu, YouTube, Amazon Prime Video, and others, and the search engine will serve up recommendations based on their tastes.

Google’s latest update may seem minor, but it’s welcome in an age when consumers are

inundated with①streaming services, each with thousands of titles to watch.

It’s also incredibly timely. Over the next 12 months, consumers will find themselves wading

through②loads of new options for streaming service subscriptions and content.

Apple is expected to debut its long-awaited Apple TV+ service this fall, with at least 34

original series and five movies, including The Morning Show, a drama starring Jennifer Aniston,

Reese Witherspoon, and Steve Carell, and Dickinson, a comedic take on Poet Emily Dickinson’s

Life, starring True Grit star Hailee Steinfeld.

Disney, meanwhile, plans on rolling out Disney Plus on Nov. 12 for $6.99 a month, or $12.99

as part of a larger bundle that includes Hulu and ESPN+. The Burbank, Calif.-based entertainment

giant has been more forthcoming about its service in more recent months, promising a day one

launch featuring more than 300 available movies and 7,500 TV episodes. Original shows in the

works include the live-action Star Wars spin-off③The Mandalorian, a Star Wars Obi Wan Kenobi

series with Ewan McGregor, and a revival of the teen sitcom Lizzie McGuire, starring Hilary Duff.

C

The CDC defines an epidemic as “an increase, often sudden, in the number of cases of a disease above what is normally expected in that population in that area.” The official definition of a pandemic is “an outbreak of disease that occurs over a wide geographic area and affects an high proportion of the population,” according to Merriam-Webster. In other words, a serious and sudden outbreak of

disease would start out as an epidemic, but some may then escalate to

pandemic once the disease has spread across countries or continents.

The first major flu-related pandemic was the Russian Flu, which traveled around the world in

the late 1800s. An outbreak of the Spanish Flu followed roughly 20 years later. The most

well-known pandemic in recent modern history was HIV which was first identified in the early

1980s. Famous epidemics in U.S. history include the spread of smallpox (天花) in the 1600s,

scarlet fever in the 1800s, polio throughout a big chunk of the early to mid–20th century, and

several waves of measles outbreaks. These outbreaks didn’t reach pandemic level because they

occurred within one country or a region of it. Despite the differences between an epidemic and a

pandemic, the fact of the matter is that you can get very sick from either one

—and the effects can be devastating to entire communities.

Many countries have devised pandemic plans that help officials respond quickly when an

outbreak occurs. Often, the focus is on mitigation — containing the outbreak through quarantine and immediate treatment — and deploying critical resources to affected populations. In the United States, the CDC has developed a national pandemic influenza plan that outlines the response plan for flu-related illnesses. One element of the plan is “community mitigation,” or trying to keep the illness contained to a limited area. Recommended strategies include frequent hand washing, sanitizing surfaces and electronic gadgets that are used often, diligent cleaning procedures, and staying home when you feel sick.

1. Which one can replace the underlined word in the third paragraph?

A. Keeping cleaning.

B. Reducing seriousness.

C. Receiving treatment.

D. Working voluntarily.

2. Which is NOT the actual case of pandemic?

A. Russian Flu. B. HIV. C. Spanish Flu. D. Smallpox.

3. What can we know about pandemic and epidemic according to the passage?

A.An epidemic will become a pandemic if it is not controlled in time.

B. They both don’t result in too serious health issues.

C. Pandemic is occurred in a smaller area compared to epidemic.

D. They both don’t lead to devastating effects on many countries.

4. What measures can people take to cut the transmission of pandemic?

A. Believe in yourself and keep a good mentality.

B. Stay at home and isolate yourself when you feel sick.

C. Take medicine without consulting or going to professional hospitals.

D. Clean your hands or electronic gadgets once in a while.

D

GEF announces new investment in Central America's blue economy

At the Our Ocean conference in Oslo, the head of the Global Environment Facility announced a $6.8 million contribution from the GEF Trust Fund to help seven countries across Central America jointly①assess opportunities and challenges from the blue economy along their Pacific coasts.

The financing will help Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico,

and Panama analyze and develop action plans to work together on coastal and marine ecosystems, along the lines of transboundary (跨界) initiatives②the GEF has supported elsewhere in Latin America through its International Waters work program.

“We strongly support this science-based effort to identify threats and opportunities for Central America’s Pacific coastal areas, and see it as a model that can be replicated③in other regions,” said Naoko Ishii, GEF CEO and Chairperson. “It is essential that we jointly sustain④healthy coastal and marine ecosystems in support of economic and environmental goals including the preservation of biodiversity. We are pleased to support this effort to inform policy priority-setting and encourage collaboration where it is urgently needed.”

The GEF’s International Waters work program brings together 156 developing countries and

24 donor⑤countries to jointly manage transboundary water resources and

support a sustainable blue economy. GEF-supported projects in this area aim to increase coordination between sectors ⑥such as tourism, renewable energy production, fisheries, aquaculture (水产养殖), and coastal

development in pursuit of economic and environmental goals.

The new Central American project, to be enforced by the UN Development Program (UNDP),

is designed to help assess the socioeconomic and ecological opportunities and challenges related

to the blue economy, which stretch beyond national borders. It will include scientific analysis of

pollution, degradation⑦of coastal and marine habitats, fisheries activity, and climate change in

the area, and set out strategies to jointly address these challenges.

The GEF has previously supported similar collaborative efforts in 23 large marine ecosystems worldwide, including the Gulf of Mexico, Caribbean, and the Humboldt Current.

Lessons from those projects, as well as GEF initiatives in East Asia and other coastal areas, inform

the design of the new venture.

In addition to the blue economy, GEF International Waters financing also supports conservation and sustainability on the high seas and enhancing security of freshwater ecosystems such as shared groundwater and lakes and river basins. Countries participating in GEF projects have negotiated and agreed on numerous regional cooperation frameworks, treaties, and protocols.

E

Here’s what happens to your mouth, teeth, and gums – beyond stinky morning breath –

when you miss recommended brushings. Think of your toothbrush, floss, and mouth rinse (漱口水) as the good guys of oral health care. The bad guys are bacteria. “Bacteria thrive on food left on or in between teeth, and it grows at lightning speed,” says Lee Gause from Smile Design Manhattan in New York. “If you only brush once a day, bacteria build up in the mouth and lead to bad breath, tooth decay, and gum disease.” Of course, bad breath is just a minor misdemeanor compared to the real crime of what happens when you don’t brush your teeth twice a day.

What happens when you don’t brush your teeth? Picture millions of bacteria trespassing on

your teeth and gums. Whenever you eat foods or drinks with sugar in them, it leaves a sticky film

of bacteria, called plaque. The bacteria in plaque creates acids that attack tooth enamel (牙釉质), and eventually the enamel breaks down, causing a little hole in the tooth.

It doesn’t stop there. The bad guys of bacteria are a hardy bunch. “Brushing alone misses 75

percent of your mouth, leaving millions of germs behind,” says Gause. A three-step defense will

protect your teeth and gums. “I recommend brushing, flossing, and swishing with mouth rinse

twice a day.” Flossing helps remove food particles, but Gause says mouth rinse can help clear out hard to reach areas and penetrate plaque to break down its structure.

Besides, brushing your teeth just once a day can lead to other serious problems, including

gingivitis (牙龈炎), the milder form of periodontal (牙周的) disease. It causes havoc on your

gums, leaving them red and swollen, not to mention the bleeding that you may see when you spit during brushing. With good behavior it is reversible.

Stick with Dr. Gause’s advice that “brushing, flossing, and rinsing should be a part of every

morning and evening routine.”

1. What can cause bad breath according to the passage?

A. Staying up too late at night.

B. Not using floss or mouth rinse.

C. Brushing teeth only once a day.

D. Eating foods with sugar for breakfast.

2. Which is the RIGHT process of causing little holes in the tooth?

A. Eating food – leaving plaque – creating acids – attacking tooth enamel.

B. Leaving plaque – eating food – attacking tooth enamel – creating acids.

C. Creating acids – leaving plaque– eating food – attacking tooth enamel.

D.Attacking tooth enamel – creating acid – eating food – leaving plaque.

3. What can help clear out the areas in the mouth that are hard to reach?

A. Brushing. B. Flossing. C. Rinsing. D. Drinking.

4. What’s the purpose of the passage?

A. To tell readers how to protect their teeth.

B. To advise readers how to brush teeth correctly.

C. To tell readers that bacteria are harmful to teeth.

D. To tell readers that they should brush teeth twice a day.

A

【答案】1-4 CABB

【 解析】本文是一篇涵盖热点新闻的记叙文，讲述了冰雪奇缘第二部中插曲 “Unmeltable

Me”以及电影制作背后的故事。

1.细节理解题。根据第一段第一句“Josh Gad's Olaf showed insanely hot skills

singing

‘Unmeltable Me’for 'Frozen II'.”可知，这首歌并不是 Elsa 唱的，故 A 项不对；根据第二句中的“never”一词，可知 B 项错误；根据第一段第一句“...singing ‘Unmeltable Me’for 'FrozenII'.”并结合歌曲名和电影之间的联系，可知，歌曲是为电影创作的，故 C 项正确；文章没有提到收录到电影中，D 项错误，故选 C。

2. 词义猜测题。根据划线单词后面部分“now at usatoday.com”可判断出，此处表示“展示，

出现”之意，故选 A。

3. 推理判断题。根据第三段的最后一句“...from sticking a lit candle into his head to placing his

head in a Sterno-heated buffet tray.”推断出，使用这个魔法是为了不让 Olaf 融化，故选 B。

4. 细节理解题。A 选项中的人物是配音 Olaf 的，文中没有提及导演名字，故 A 项不正确；

根据第三段的最后一句话“The scene features Olaf doing just about everything to show off his

new permafrost coating”可知，Olaf 到处炫耀他的技能，可知是喜欢的，故 B 项正确；C 项

中的态度消极不存在；根据文中第四段的第二句“so Olaf fills time entertaining the assembled

guests with the song”可知，提到了此歌曲出现的场景，故 D 项不正确。综上所述，选 B。

【词汇积累】

accompaniment [əˈkʌmpənimənt] n. (音乐) 伴奏

tray [treɪ] n. 盘；托盘

animator [ˈænɪmeɪtə(r)] n. 动画片制作者

permafrost [ˈpɜːməfrɒst] n. (寒带) 永冻土层

dignitary [ˈdɪgnɪtəri] n. 显贵；要人；达官贵人

【句法剖析】

1.The missing \"Unmeltable Me\" is revealed now at usatoday.com, ahead of the home release of

\"Frozen II\

句意：被剪掉的这首歌 \"Unmeltable Me\"在今日美国网站上展示出来，早于以删除

的场景作

为额外增加的内容为特色的《冰雪奇缘 2》家庭版。

此句中含有 which 引导的非限制性定语从句，修饰前面的“the home release of ‘Frozen

II’”。短语 ahead of ，意为“在……前面；早于”。

2.Olaf's audience in the scene is a group of dignitaries who have traveled to Arendelle from

around the world to meet the powerful Elsa at a state dinner.

句意：在电影场景中，Olaf 的观众是一群从世界各地来到 Arendelle 的达官贵人，想要在国宴上与强大的 Elsa 会面。

此句含有一个 who 引导的定语从句，先行词为 dignitaries，其中 from around the world

作为定语修饰 a group of dignitaries，to meet the powerful Elsa at a state dinner 作目的状语。短语 a state dinner，意为“国宴”。

B

新词积累

be inundated ['ɪnəndeɪtɪd] with 充满，充斥

wade through 费力前进；很吃力地通过……； 辛苦地做完（读完）……；涉（水，泥泞等）

spin-off n. 衍生物；派生物；副产品

金句赏析

1.Google’s latest update may seem minor, but it’s welcome in an age when consumers are

inundated with streaming services, each with thousands of titles to watch.

谷歌的最新更新看起来微不足道，但在一个消费者被流媒体服务淹没的时代，它是受欢迎的，

每个流媒体服务都有数千个标题可供观看。

2. Over the next 12 months, consumers will find themselves wading through loads of new options

for streaming service subscriptions and content.

在未来的 12 个月里，消费者将会发现自己要费力地阅读大量的流媒体服务订阅和内容的新

选项。

全文翻译 谷歌的搜索引擎可以推荐你最喜欢的节目和电影

谷歌希望帮助智能手机用户找到新的（和旧的）最喜欢的电视节目和电影观看。

这家总部位于加州山景城的科技巨头周四宣布了其移动搜索引擎的最新进展，该引擎将

通过不同的流媒体服务为美国用户提供个性化的电视和电影推荐。

如何开始:访问 Google.com 或谷歌搜索应用程序的移动用户只需输入一个短语，包括“看

什么”或“看什么好节目”。谷歌随后列出了不同类型的电视剧和电影的名字，从《绝望主妇》和《吸血鬼猎人巴菲》等老一些的电影，到迪士尼的真人版《阿拉丁》和《复仇者联盟:终局之战》等新上映的电影。然后，Tinder 的风格，用户将滑动到“喜欢”或“不喜欢”他们。一旦完成，用户可以选择订阅哪些流媒体服务，包括 Netflix, Hulu, YouTube, Amazon Prime Video 等，搜索引擎将根据他们的喜好推荐。

谷歌的最新更新看起来微不足道，但在一个消费者被流媒体服务淹没的时代，它是受欢迎的，每个流媒体服务都有数千个标题可供观看。

这也是非常及时的。在未来的 12 个月里，消费者将会发现自己要费力地阅读大量的流

媒体服务订阅和内容的新选项。

苹果公司预计将在今年秋天推出期待已久的苹果电视+服务，至少推出 34 部原创系列和 5 部电影，其中包括早间秀，由 Jennifer Aniston、Reese Witherspoon 和 Steve Carell 主演的戏剧，以及由真人秀明星 Hailee Steinfeld 主演的喜剧版《诗人艾米莉·狄金森的一生》。

与此同时，迪士尼计划在 11 月 12 日推出“迪士尼+”，每月收费 6.99 美元(约合 12.99 美

元)，这是 Hulu 和 ESPN+等更大套餐的一部分。这家总部位于加州 Burbank 的娱乐巨头近几个月来对这项服务表现得更为坦率，承诺在推出首日将推出 300 多部电影和 7500 集电视剧。

原计划拍摄的电影包括《星球大战》的真人版衍生电影《曼达洛里安》，《星球大战》的

Obi Wan Kenobi 系列电影，Ewan McGregor 主演，以及由 Hilary Duff.主演的青少年情景喜

剧《莉齐·麦奎尔》的翻拍版。

C

【答案】1～4 BDAB

【解析】本文是一篇说明文，主要介绍了流行病和大流行病的区别。

1. 词义猜测题。根据第三段第二句“Often, the focus is on mitigation—containing the outbreak

through quarantine and immediate treatment — and deploying critical resources to affected

populations.”可知，重点是通过隔离和立即治疗来减轻疫情，并向受影响人群部署关键资源，审视选项，B 项“Reducing seriousness（减缓严重程度）”最符合，故选 B。

2. 细节理解题。根据第二段第四句“Famous epidemics in U.S. history include the spread of

smallpox (天花) in the 1600s, scarlet fever in the 1800s, polio throughout a big chunk of the early

to mid–20th century, and several waves of measles outbreaks.”（美国历史上著名的流行病的传播包括 16 世纪天花的传播，18 世纪的猩红热，20 世纪早中期的小儿麻痹症，以及一波又一波麻疹疫情的爆发）可知，天花并不属于大流行病，故选 D。

3. 细节理解题。根据第二段倒数第二句“These outbreaks didn’t reach pandemic level because

they occurred within one country or a region of it.”（这些疫情没有达到大流行级别，因为它们

发生在一个国家或一个地区）可知，流行病如果没有得到及时控制就会变成大流行病，故选

A。

4. 细节理解题。根据第三段最后一句“Recommended strategies include frequent hand washing, sanitizing surfaces and electronic gadgets that are used often, diligent cleaning procedures, and

staying home when sick.（建议的策略包括勤洗手、经常使用的电子设备表面要消毒、清洗以

及生病时呆在家里）”可知，要想切断大流行病的传播途径，当你感觉到身体不适的时候，

应该自行隔离，故选 B。

【词汇积累】

epidemic [ˌɛpɪˈdɛmɪk] n. 流行病；adj.流行性的

pandemic [pænˈdɛmɪk] n.（全国或全球性）大流行病

escalate [ˈɛskəˌlet] vt. 使逐步升级

deploy [dɪˈplɔɪ] vt. 使展开；施展

【句法剖析】

1. Many countries have devised pandemic plans that help officials respond quickly when an

outbreak occurs.

句意：许多国家制定了大流行病防控计划以帮助官员在疫情爆发时迅速作出反应。

句子分析：整个句子的主干是 Many countries have devised pandemic plans，主语是 Many

countries，主句后接 that 引导的定语从句，修饰 plans，定语从句中含有 when 引导的时间状语从句。

2. Recommended strategies include frequent hand washing, sanitizing surfaces and electronic

gadgets that are used often, diligent cleaning procedures, and staying home when you feel sick.

句意：建议的策略包括勤洗手、经常使用的电子设备表面要消毒、清洗以及生病时呆在家里。

句子分析：整个句子的主语是 Recommended strategies，主句后有两个从句，一个是由 that

引导的定语从句，修饰 electronic gadgets，另一个是由 when 引导的时间状语从句。

D

新词积累

jointly [ˈdʒɔɪntli] adv. 共同地；连带地

initiative [ɪˈnɪʃətɪv] n. 新方案，倡议，主动权

replicate [ˈreplɪkeɪt] vt. 复制；折叠 adj. 复制的；折叠的

sustain [səˈsteɪn] vt. 维持；支撑，承担

donor [ˈdəʊnə(r)] n. 捐赠者；adj. 捐献的

sector [ˈsektə(r)] n. 部门；扇形 vt. 把……分成扇形

degradation [deɡrəˈdeɪʃn] n. 退化；降格，降级；堕落

金句赏析

1. It is essential that we jointly sustain healthy coastal and marine ecosystems in support of

economic and environmental goals including the preservation of biodiversity.

我们必须共同维持健康的沿海和海洋生态系统，以支持包括保护生物多样性在内的经济和环

境目标。

2. We are pleased to support this effort to inform policy priority-setting and encourage collaboration where it is urgently needed.

我们很高兴支持这一努力，使政策优先性得以确立，并鼓励在迫切需要时开展合作。

3. Lessons from those projects, as well as GEF initiatives in East Asia and other coastal areas, inform the design of the new venture.

这些项目的经验教训，以及全球环境基金在东亚和其他沿海地区的倡议，为新企业的设计提

供了指导。

全文翻译

全球环境基金宣布对中美洲蓝色经济的新投资在奥斯陆举行的我们的海洋会议上，全球环境基金负责人宣布，全球环境基金信托基金将提供 680 万美元的捐款，帮助中美洲七个国家共同评估太平洋沿岸蓝色经济带来的机遇和挑战。

这笔资金将帮助哥斯达黎加、厄瓜多尔、萨尔瓦多、危地马拉、洪都拉斯、墨西哥和巴拿马分析和制定有关沿海和海洋生态系统的共同行动计划，同时，全球环境基金的跨界举措通过其国际水域工作方案支助了拉丁美洲其他地区。

全球环境基金首席执行官兼主席石井直子表示:“我们强烈支持这项以科学为基础的工作以发现中美洲太平洋沿岸地区面临的威胁和机遇，并将其视为可在其他地区复制的模式。”“我们必须共同维持健康的沿海和海洋生态系统，以支持包括保护生物多样性在内的经济和环境目标。我们很高兴支持这一努力，告知政策优先性并鼓励在迫切需要时开展合作。”

全球环境基金的国际水域工作计划汇集了 156 个发展中国家和 24 个捐助国，共同管理

跨界水资源，支持可持续的蓝色经济。全球环境基金在这一领域支持的项目旨在加强旅游、

可再生能源生产、渔业、水产养殖和沿海开发等部门之间的协调，以实现经济和环境目标。

新的中美洲项目将由联合国开发计划署(UNDP)实施，旨在帮助评估与蓝色经济相关的社会经济和生态机遇和挑战，蓝色经济超越国界。它将包括对污染、沿海和海洋栖息地退化、渔业活动减少和该地区气候变化的科学分析，并制定共同应对这些挑战的战略。

全球环境基金以前曾在全球 23 个大型海洋生态系统中支持过类似的合作努力，包括墨西哥湾、加勒比海和洪堡德洋流。这些项目的经验教训，以及全球环境基金在东亚和其他沿海地区的倡议，为新企业的设计提供了指导。

除了蓝色经济之外，全球环境基金的国际水域融资还支持对公海的保护和可持续性，并加强诸如共享地下水、湖泊和河流流域等淡水生态系统的安全。参与全球环境基金项目的国家已就许多区域合作框架、条约和议定书进行谈判并达成协议。

E

【答案】1-4 CACB

【解析】本文是一篇说明文，介绍了关于如何保护牙齿的知识。

1. 细节理解题。根据第二段第四句“If you only brush once a day, bacteria build up in the mouth

and lead to bad breath, tooth decay, and gum disease.”可知，一天只刷一次牙会引起口腔异味。

故选 C。

2. 细节理解题。根据第三段第二、三句“Whenever you eat foods or drinks with sugar in them,

it leaves a sticky film of bacteria, called plaque. The bacteria in plaque creates acids that attack

tooth enamel, and eventually the enamel breaks down, causing a little hole in the tooth, called a

cavity.”可知，整个过程应为 Eating food – leaving plaque – creating acids – attacking tooth enamel，故选 A。

3. 细节理解题。根据第四段第五句“Flossing helps remove food particles, but Gause says mouth

rinse can help clear out hard to reach areas and penetrate plaque to break down its structure. ”可知，要彻底清除斑点还需要清洗口腔。故选 C。

4. 推理判断题。纵观全文，整合文章和 Dr. Gause’s advice 的建议，可知本文的写作目的是建议读者如何正确刷牙，故选 B。

【词汇积累】

trespass [ˈtrespəs] v. 擅自进入，非法侵入

swish [swɪʃ] v. 刷地(或嗖地、呼地等)挥动;(使)快速空中移动

havoc [ˈhævək] n. 灾害；祸患；浩劫

reversible [rɪ'vɜːsɪb(ə)l] adj. 可逆的；双向的；可反转的

【句法剖析】

1. If you only brush once a day, bacteria build up in the mouth and lead to bad breath, tooth decay, and gum disease.

句意：如果一天只刷牙一次，细菌就会在口腔中堆积，导致口臭、蛀牙和牙龈疾病。

句子分析：此句含有 if 引导的条件状语从句，主句主语为 bacteria，谓语为 build up 和 lead to，in the mouth 做状语，bad breath, tooth decay 和 gum disease 做 to 的宾语。

2. It causes havoc on your gums, leaving them red and swollen, not to mention the bleeding that

you may see when you spit during brushing.

句意：它会对牙龈造成严重破坏，使牙龈红肿，更不用说，刷牙吐口水时还可能看到出血。

句子分析：此句涵盖一个非谓语动词做结果状语 leaving them red and swollen, 短语 not to

mention 意为“更不用说”，其后含有一个定语从句 that you may see when you spit during

brushing.，修饰先行词 bleeding，定语从句中又含一个 when 引导的时间状语从句。