1、课时提能练(三十九)选修7Unit 20New Frontiers(A).阅读理解A(2020黄冈市质量检测)One of the things that makes your smart phone so smart is that if you pull it out in the sun，it senses that and adjusts the screen brightness to compensate.But its not a perfect solution. “First of all，its still not bright enough you have to rem
2、ember how respectable sunlight is，” said ShinTson Wu，a physicist at the University of Central Florida.The other problem，he says of the brightened screen，is that it kills the battery.So Wu and his colleagues have produced a batterysparing alternative: an antireflective screen coating，based on the eye
3、s of moths.“Nature is so rich! We can learn a lot from nature.” The thing Wu and others have learned about moths eyes，is that theyre uneven，dotted with tiny projections.That uneven surface reduces the reflection of light off their eyes，thought to help the bugs escape predators(捕食动物)，and see better i
4、n low light.So Wu and his team built a similar surface with tiny dimples (小凹)，to cut down on glare.He says the coating could improve the readability of a screen by five to ten times，compared to a normal smart phone screen.The details are in the journal Optica.The technology hasnt been commercialized
5、 yet，and that could take a few years，which gives researchers time to take advantage of another property of these surfaces theyre flexible，meaning the possibility of bendable displays.Combining that with the bendy batteries we reported on in a recent podcast (播客)，the smart phones of the future could
6、be set for a real transformation.【语篇解读】研究人员从飞蛾的眼睛构造中得到启示，研制了抗反射手机屏涂层。这种涂层可以改善屏幕的清晰可辨性，从而减少增亮屏幕时手机电池的使用。1Why do the researchers develop the antireflective screen coating?ATo brighten the screen.BTo make profits.CTo use smart phones in the sunlight.DTo save the use of battery.D细节理解题。根据第二段中的“The other
7、problem，he says of the brightened screen，is that it kills the battery.So Wu and his colleagues have produced a batterysparing alternative：an antireflective screen coating”可知，研究人员研制抗反射手机屏涂层是为了减少手机电池的使用。2What inspired the invention of the screen coating?AThe predators.BThe reflection of light.CThe eye
8、s of moths.DThe smooth surface.C细节理解题。根据第二段中的“an antireflective screen coating，based on the eyes of moths”并结合该段其他内容可知，飞蛾的眼睛启发研究人员研制了防反射屏幕涂层。3How does the screen coating work?AIt helps bugs escape.BIt slows down reading.CThe smooth surface protects our eyes.DThe rough surface decreases the reflection
9、 of light.D细节理解题。根据第二段倒数第四句中的“That uneven surface reduces the reflection of light off their eyes”以及倒数第三句中的“So Wu and his team built a similar surface”可知，这种屏幕涂层通过其不平的表面来减少光的反射。4What do the researchers expect of the screen?AItll transform itself.BItll be environmentally friendly.CItll reach consumers
10、soon.DItll be powered by recyclable batteries.A细节理解题。根据最后一段中的“theyre flexible，meaning the possibility of bendable displays”可知，研究人员期望这款屏幕能够变形。B(2020武汉市部分学校质量监测)The Notre Dame fire has been put out，but its spire (塔尖) and a large portion of its wooden roof have been damaged.The terrible destruction cau
11、ses a sudden sharp pain to people around the world.On Chinese social media network WeChat a common comment on the disaster is：“ What a pity that we cannot see the damaged parts of the wonder anymore.”But the good news is that there is at least one way of seeing them，namely via a video game called As
12、sassins Creed Unity.In this game，the player can travel to one city after another and enter the buildings exactly like what they are in the reality，and see Notre Dame as it was before the fire.Further，with virtual reality technology，which is already quite mature，one can even look around the undamaged
13、 Notre Dame as if it were still there.Maybe digital technology could help to better protect architectural cultural heritage.The idea of digitizing ancient buildings，making digital models of them so their data can be saved，dates back to the 1990s and the necessary technology has continued to advance
14、since then.By scanning the ancient buildings with lasers，building 3D models with multiple images，as well as measuring everything precisely，engineers can make a copy as accurate as the real one. As computers and smartphones are hugely popular，the digital replica (复制品) has great use value.First，it all
15、ows tourists to feel the cultural relics without touching them，which helps protect them.The virtual tour of Dunhuang Grottoes in Gansu Province is a good example of this as tourists can view the paintings without standing near them.Furthermore，it can make the digitized cultural relics more famous by
16、 spreading awareness about them via the Internet.In 2000，a virtual tour of the Great Wall became very popular at the Hannover World Expo，which increased the number of foreign tourists visiting the site in the following years.Above all，it preserves all the information of the cultural relics.Even if t
17、he original ones are damaged one day，people can still know what they were like and can build replicas if desired.Of course，however precise a model is，it is not the original.Time is the biggest threat to a countrys architectural heritage，which will always become ruins with the passing of time.Maybe w
18、e will have better technologies in the future，but the digital technology offers a practical way to preserve architectural cultural heritage at the moment.【语篇解读】巴黎圣母院的大火让人们再也无法看到其中被损坏的部分，但是利用数字技术，可以让其原貌重现。人们利用数字化复制品，在不触碰到实物的情况下，可以让文化遗产栩栩如生地展现在眼前，并且数字化复制品可以保存文化遗产的所有信息，对认识和保护文化遗产有着非凡的意义。5What can we se
19、e about Notre Dame in the game?AThe damaged parts.BIts wooden shape.CIts original look.DThe big fire.C细节理解题。根据第二段第二句“In this game，the player can. see Notre Dame as it was before the fire”可知，在这个游戏中，我们可以看到火灾前的巴黎圣母院原貌，故C项正确。6What will engineers do to create digital replicas of the ancient buildings?AIm
20、prove the technology needed.BScan the photos of the buildings.CBuild 3D models of full size.DMeasure all the parts exactly.D细节理解题。根据第三段尾句“By scanning the ancient buildings with lasers, building 3D models with multiple images，as well as measuring everything precisely，engineers can make a copy as accu
21、rate as the real one”可知，为了制作数字化复制品，工程师需要精确地测量每一部分，故D项正确。7How does the author prove the digital copy has vital practical importance?ABy comparison.BBy giving examples.CBy classification.DBy listing data.B写作手法题。通读第四段可知，该段列举了敦煌石窟利用数字化复制品让游客在不接触实物的情况下体验文化遗产；列举了利用数字化复制品制作长城虚拟游并在网上推广，让世界上更多的人了解长城，吸引了更多的游客
22、。据此可知，作者使用了“举例”的方法证明了数字化复制品的重要实用性。8What is the authors attitude towards the application of digital technology?ADoubtful.BNeutral.CSupportive.DConservative.C观点态度题。根据本文尾句“Maybe we will have better technologies in the future, but the digital technology offers a practical way to preservearchitectural cu
23、ltural heritage at the moment”可知，作者认为当下的数字技术为保护建筑文化遗产提供了一个实用的方法。据此可推知，作者支持数字技术的应用，故C项正确。.完形填空(2020江西省五校协作体联考)Brooke Ochoa was going to enter a restaurant for lunch when she saw an elderly lady approaching.The 30yearold woman _1_to keep the door open for her.She thought she was just doing something _
24、2_ .She didnt know，however，that a remark (评论)that the lady would make a few seconds later would _3_ a chain of events that would cause her to get countless likes on her post and _4_on social media suddenly.As Brooke entered the restaurant，she _5_ the elderly lady asking for“a table for one”Then she
25、decided to do one more act of _6_ .Brooke walked up to the ladys_7_ and asked，“I also _8_ alone，would you like to have lunch together？”The lady，named Dolores，not only accepted Brookes_9_ ，but she was very pleased to have _10_.The two _11_ up an instant friendship during their meal.Dolores told Brook
26、e that shed been having a _12_ time.“She spent the last decade living with her mom，who recently passed away，”Brooke wrote in a later post about the encounter.“She just kept smiling and saying thank you for listening to me，which made me _13_too！”Brooke and Dolores enjoyed their conversation so much t
27、hat they _14_ to have lunch with each other every Thursday from that point on.In a later _15_ ，not long after their first meeting，Brooke _16_ that Dolores had passed away.If nothing else，this chance _17_ is evidence that the smallest _18_of goodwill can quite exactly change a life.Neither of the two
28、 women knew that Doloress days on earth were so _19_，but they found_20_in each other，and thats what matters.【语篇解读】Brooke Ochoa去餐馆吃饭时偶遇了一位老妇人，她为这位老妇人开门，又在得知老妇人自己一个人吃饭后邀请其一起共进午餐，两人由此建立了友谊，并约定每周四共进午餐；但在她们第一次见面后不久，那位老妇人就去世了。这段友谊虽然很短暂，但是她们在彼此身上找到了安慰。1A.hesitatedBwaited Ccompeted DpretendedB根据空后的“keep the
29、 door open for her”和下文Brooke因为这个行为获赞可知，Brooke在那等着为那位老妇人开门。2A.polite Bhonest Cwise DfoolishA根据上文内容并结合常识可知，等着为别人开门是一种礼貌的行为。 3A.ignoreBreportCremove DproduceD与该句中的“cause”呼应，并结合空后的“a chain of events”可知，此处表示几秒后那位老妇人的评论会引起(produce)一连串的事件。4A.take off Bset offCleave off Dcut offA与句中的“get countless likes”呼应可
30、知，此处表示Brooke因为无数点赞而在社交媒体上开始走红。take off“开始走红”。5A.realized Bfelt CinsistedDoverheardD根据语境可知，当Brooke走进餐馆，她无意中听到那位老妇人正在要一张单人桌。overhear“无意中听到，偶然听到”。6A.weaknessBkindness CfriendshipDencouragementB根据上文可知，Brooke为老妇人开门是一种礼貌的行为；当她无意中听到那位老妇人想要一张单人桌时，她决定再多做一个善举。7A.car BcounterCdoor DtableD根据上文中的“table”可知，Brooke
31、走到老妇人的餐桌旁邀请她一起共进午餐。8A.struggle Bdefend CeatDpostC根据空后的“would you like to have lunch together”可知，Brooke也是一个人来餐馆吃饭的。9A.bowBcare CeffortDofferD根据上文中的“would you like to have lunch together”可知，这是Brooke的提议(offer)。10A.companyBfriction CadjustmentDpermissionA与上文中的“a table for one”“alone”形成对比可知，老妇人不仅接受了Brook
32、e的提议，而且也乐意吃饭有个伴儿。company“陪伴”。11A.turnedBbuilt CthrewDputB根据语境可知，两个陌生人在就餐过程中迅速建立了友谊。12A.pleasantBshortCtoughDluckyC根据下一句中的“She spent the last decade living with her mom，who recently passed away”可推知，老妇人当时正在过着艰难的日子。tough意为“艰难的”。13A.sobBpanic Clisten DsmileD根据本句中的“She just kept smiling”和“too”可知，老妇人感染了 B
33、rooke，Brooke也面带微笑。14A.seemed BrefusedCagreedDremainedC根据该句中的“Brooke and Dolores enjoyed their conversation so much” 可知，Brooke和Dolores聊得很开心，因此两人约定每个星期四都共进午餐。agree意为“商定，约定”。15A.updateBpurchase Cabsence DpraiseA与上文“Brooke wrote in a later post about the encounter”呼应可知，此处表示在Brooke和Dolores第一次见面之后不久更新的一篇帖
34、子中，Brooke说Dolores已经去世了。16A.approved Btold Canalyzed DcommittedB参见上题解析。17A.complaintBargument Cconversation DappointmentC根据上文中的“Brooke and Dolores enjoyed their conversation so much”可知，此处表示Brooke和Dolores共进午餐时所进行的谈话。18A.strengthBact Ccompetence DfaultB与上文中的“Then she decided to do one more act of _.”形成
35、呼应可推知，此处表示善举。19A.limitedBrich Clong DpoorA根据上文可知，在Brooke和Dolores约定一起共进午餐后不久， Dolores就去世了，故此处表示当时她们都不知道Dolores在世的时间如此有限。20A.successBreality CcomfortDequality CBrooke和Dolores共进午餐时聊得很开心，她们之间建立了友谊，彼此在对方那里找到了安慰。课时提能练(四十)选修7Unit 20New Frontiers(B).阅读理解A(2020黄冈二次摸底)Have you ever experienced such an annoyin
36、g thing as it took so long to open a web page? Youre watching stops every few minutes, which ruined your Internet experience. But it could be a thing of the past. On June 3, the Ministry of Industry and Information Technology announced that China would issue licenses for the commercialization of 5G.
37、 It means major telecom carriers will start to provide 5G services.The “G” in “5G” refers to the generation of mobile network technologies. 1G let us talk to each other, 2G let us send messages, 3G gave us mobile data and the Internet, and 4G made all of these things faster.Now 5G promises much fast
38、er data download and upload speeds, and more stable connections. This means that you will be able to download an entire HD movie in seconds and only experience a short delay between sending and receiving data. For example, when you have a video chat with your friend, there is generally a 100 to 200
39、milliseconds (毫秒) delay with 4G, but 5G will reduce the delay to 1 millisecond or less, which is almost real time.With a 5G network, the short delay in information exchange will allow driverless cars to run more safely, as they will be able to communicate in real time and avoid potential dangers. Me
40、anwhile, 5G enabled wearable devices will keep doctors constantly updated on the health status of their patients and warn them immediately if theres something wrong. Besides, VR games will become more popular with 5G. The short delay of 5G will make the games feel even more real.Though 5G will make
41、our lives more convenient, it will not be perfect. For one thing, 5G will not “travel” far. On 4 networks, you can be 10 kilometers away from the nearest transmission (传输) base and barely lose signal. But 5G will only cover about 300 meters, meaning we will need more transmitters so that we can get
42、signals. And in order to use 5G, we will have to buy new product specially designed for 5G that are currently expensive.【语篇解读】本文为一篇说明文。本文讲述5G时代的到来即将给人们的生活带来的影响。1What is the function of the first paragraph?ATo provide a background of the topic.BTo offer basic knowledge of the topic.CTo use an example
43、 to support the topic.DTo draw readers attention to the topic.D推理判断题。本题考查写作手法，根据文章第一段“Have you ever experienced such an annoying thing as it took so long to open a web page? Youre watching stops every few minutes”可知，第一段使用打开网页时间长且卡顿的例子来吸引读者并引出主题。故选D项。2According to the passage, what is likely to happe
44、n to our life with 5G?ADoctors can treat more patients.BNo drivers are needed in the near future.CMany advanced technologies will be further improved.DChildren will hate playing VR games in the real world.C推理判断题。根据第四段“With a 5G network, the short delay in information exchange will allow driverless c
45、ars to run more safely, as they will be able to communicate in real time and avoid potential dangers. Meanwhile, 5G enabled wearable devices will keep doctors constantly updated on the health status of their patients and warn them immediately if theres something wrong. Besides, VR games will become
46、more popular with 5G. The short delay of 5G will make the games feel even more real.”可知，5G使无人汽车更安全；医生更精准获取病人的病情；VR游戏玩起来更逼真。所有这些都得益于5G传输速度的极大提高。由此可推知，5G使许多先进技术得到进一步优化。故选C项。3What can be found when 5G is compared with 4G?A4G cover smaller areas.B4G needs more transmitters.C5G signals can travel farther
47、.D5G costs higher in early stage.D细节理解题。根据最后一段“And in order to use 5G, we will have to buy new product specially designed for 5G that are currently expensive.”可知，为了使用5G，目前需要购买价格昂贵的与之配套的新产品。由此可知，早期使用5G的成本要高于4G。故选D项。4What is the text mainly about?AThe development of 5G.BChallenges that 5G will face.CB
48、enefits that people will get from 5G.DThe difference that 5G will make to our lives.D主旨大意题。通读全文可知，文章从一个现象引出对于5G的讨论，介绍了5G的优势和早期存在的缺陷，讲述了5G将给人们生活带来的影响。D项符合文章主要内容。故选D项。B(2020佛山模拟)The Wall Street Journal recently published an excellent article penned by Wendy Bounds on a hot topic here at MNN: the airpu
49、rifying qualities of the common house plant. Given that the air inside your home can be 2 to 5 times more polluted than the air outside of it, making it clean with plants like peace lily (百合花) and asparagus fern (芦笋蕨) is an economical, artistically pleasing alternative to air purifiers. So its been
50、acknowledged that a bunch of pretty putted houseplants can help you maintain a healthier home, but a smarter home?Thats the question in light of a recent study published by the Journal of Environmental Psychology showing that the presence of plants in a room, particularly in an office environment, c
51、an shrink_attention_span(范围). Struggling directive attention (the kind of attention that takes effort) can be refreshed through exposure to naturalistic environments. Basically, taking a walk through the park can clear ones head.But can a head be refreshed simply by being surrounded by houseplants?T
52、o test their theory, the studys authors rounded up a bunch of participants, put some of them in a room with no plants and put others in a room with our plants placed around a desk, and put them all to the same series of tests. First was a Rearing Span Teat which involves reading a series of sentence
53、s aloud and remembering the last word in each sentence. This task requires that you fluently switch between attention demanding tasks: from reading and memorizing at one moment to writing and recalling at the next. Next came a proofreading task followed by another Reading Span Test.The results? Part
54、icipants working in the room with the plants improved their performance from the first Reading Span Test to the second while those working in the room lacking in greenery did not. Consequently, the benefits of working among plants is indeed evident.【语篇解读】本文是一篇说明文。文章通过实验说明室内植物可以很好地提高人们的注意力。5What do w
55、e know from the first paragraph?AStaying indoors can help avoid the poorer air outdoors.BHouseplants can function as beautiful cheap air purifiers.CPlanting polled flowers as decorations is very interesting.DAir purifiers are the most effective to create a healthy home.B细节理解题。根据第一段“Given that the ai
56、r inside your home can be 2 to 5 times more polluted than the air outside of it, making it clean with plants like peace lily (百合花) and asparagus fern (芦笋蕨) is an economical, artistically pleasing alternative to air purifiers.”可知，鉴于室内空气污染比室外空气污染严重2到5倍，用百合花、芦笋蕨这些植物来取代空气净化器净化室内空气即经济实惠又美观。故选B项。6What doe
57、s the underlined part in Paragraph 2 probably refer to?AFocus ones attention.BDisturb ones attention.CWeaken ones attention.DTurn ones attention away.A词义猜测题。根据第二段“Struggling directive attention(the kind of attention that takes effort) can be refreshed through exposure to naturalistic environments.”可
58、知，挣扎的注意力(需要努力的注意力)可以通过置身于自然环境中来恢复。据此可推知，缩小注意力范围即指注意力得到恢复，变得更专注。故选A项。7What does the test prove?AWorking in nature helps increase productivity.BHouseplants will be in great demand in our life.CGreenery creates healthier naturalistic atmosphere indoors.DWorking among houseplants improves mental functio
59、ning.D细节理解题。根据第四段“Participants working in the room with the plants improved their performance from the first Reading Span Test to the second while those working in the room lacking in greenery did not. Consequently, the benefits of working among plants is indeed evident.”可知，在有植物的房间里工作的参与者从第一次阅读广度测试到
60、第二次阅读广度测试成绩都有所提高，而在没有绿色植物的房间里工作的参与者则没有。因此，在植物间工作的好处是显而易见的。由此可知，这个测试证实了在室内植物间工作可以改善精神功能。故选D项。8What can be a suitable title for the text?AFlowers: Grand Feast to EyesBGreenery: Effective AirpurifierCHouseplants: Visual Brain FoodDPotted Plants: Great! HousebeautifierC主旨大意题。根据全文内容可知本文介绍室内植物可以很好地提高人们的注意
61、力，对大脑的工作效果起到积极作用。C项“室内植物：脑视觉的食物”符合文章主旨。故选C项。.阅读七选五(2020荣成段考)One of the healthiest Foods on the planetThere is probably no flower more hated, or misunderstood, than the bright yellow dandelion (蒲公英). _1_ In an effort to have the perfect green grass lawn, people try their best to kill all dandelions w
62、ith chemical products. Or they dig them out at the rootsonly to see them grow right back._2_ They are a great source of vitamin K and also are a good source of vitamins A and CThey also have vitamin E, folate and small amounts of other B vitamins. Also, they provide lots of iron, calcium, magnesium
63、and potassium.Besides nutrition, another great thing about dandelions is that you can eat every part of themfrom the bottom of the roots to the top of the flower. _3_ Do not eat ones that have been treated with dangerous chemicals or are growing near high traffic areas.Dandelions are said to provide
64、 several possible health benefits such as helping in digestion and improving some skin conditions. They may also reduce inflammation (炎症)Children in many parts of the world have had the simple pleasure of blowing the soft, white dandelion tops. _4_ In fact, there is a game children play with dandeli
65、ons that have gone to seed.Pick the white top, make a wish, close your eyes and blow! If you blow all of the seeds off in one breath, your wish will come true! _5_AWell, that is what many children believe.BThey watch the seeds float easily in the air.CAt least the seeds have traveled far and wide.DJ
66、ust make sure to take care when picking wild dandelions.EYou can let more of this nutritious food source continue to grow.FDandelions are actually one of the most nutritious foods in the world.GIn the United States, they are considered “weeds”， the name for any unwanted plant.【语篇解读】本文是一篇说明文。文章介绍了蒲公英
67、的益处。蒲公英实际上是世界上最有营养的食物之一。它们是维生素K的重要来源，也是维生素A和C的良好来源。它们还含有维生素E和少量其他维生素B。1G根据后面的“people try their best to kill all dandelions(人们千方百计消灭所有的蒲公英)”可知，在美国，蒲公英被认为是“杂草”，是指那些不想要的植物。故选G。2F根据后面“They are a great source of vitamin K and also are a good source of vitamins A and C(它们是维生素K的重要来源，也是维生素A和C的良好来源。)”可知，讨论的是
68、蒲公英所含的各种维生素。本段介绍的是蒲公英实际上是世界上最有营养的食物之一。故选F。3D根据后面的“Do not eat ones that have been treated with dangerous chemicals or are growing near high traffic areas.(不要吃那些经过危险化学品处理或生长在交通繁忙地区附近的蒲公英。)”可推测此处为说明采摘野生蒲公英时一定要小心。故选D。4B根据前面的“Children in many parts of the world have had the simple pleasure of blowing the
69、 soft, white dandelion tops.(世界上许多地方的孩子都有吹蒲公英的简单乐趣。)”此处承接上文，说明孩子喜欢吹蒲公英的表现有：他们看着种子轻松地漂浮在空中。故选B。5A根据前面的“If you blow all of the seeds off in one breath, your wish will come true！(如果你一口气吹掉所有的种子，你的愿望就会实现！)”此处承接上文可知那是许多孩子相信吹掉所有种子愿望就会实现。故选A。.语法填空(2020保定三次模拟)All eyes were on Jack Ma. The chairman of Alibaba
70、 Group Holding Ltd.1._ (step) down on Teachers Day from leading the ecommerce giant. “I still have lots of reams to go after.” Ma wrote in 2._ open letter last year, announcing his parting. The 55yearold businessman showed up at his farewell party (欢送会) 3._(dress) up like a rock star.Mas ragstoriche
71、s story is a good example of doing something different. 4._(visit) America in 1995, Ma saw the Internet and had the idea of setting up his own trading website. In 1999, he founded Alibaba, struggling for years to get it off the ground.Ecommerce was 5._(gradual) brought to China by Ma, 6._ success ha
72、s inspired many Chinese tech businessmen.Now Ma is looking to focus 7._education, “Im not gonna teach English; Im not gonna teach business. But Im gonna teach young people how to face 8._ (challenge)，” he told Bloomberg News. Its never true that skilled sailors can 9._ (make) on calm waters. As Ma s
73、aid, “Today is cruel. Tomorrow is 10._ (cruel). But the day after tomorrow is beautiful.”【语篇解读】本文为一篇说明文。文章介绍了阿里巴巴集团董事长马云退休后追求自己的梦想。1stepped考查时态。句意：阿里巴巴集团控股有限公司董事长在教师节当天辞去了领导这家电子商务巨头的职务。结合前文“All eyes were on Jack Ma.”可知，此处描述的是过去的事情，应使用一般过去时，step的过去式为stepped。故填stepped。2an考查冠词。句意：马云去年在一封公开信中宣布离职。分析句子可知
74、，文章缺少冠词，修饰名词letter，且在形容词open前，open以元音音素开头。故填an。3dressed考查过去分词。句意：这位55岁的商人打扮成摇滚明星出现在他的告别派对上。分析句子可知， businessman与dress为逻辑上的被动关系，此处过去分词作状语修饰businessman。故填dressed。4Visiting考查现在分词。句意：1995年访问美国时，马云看到了互联网，有了建立自己的贸易网站的想法。分析句子可知，Ma与参观为逻辑上的主动关系，现在分词作状语修饰Ma，且位于句首首字母需要大写。故填Visiting。5gradually考查副词。句意：电子商务是马云逐渐带到
75、中国的，马云的成功鼓舞了许多中国电商。分析句子可知，修饰动词brought用副词，故gradual变为gradually。故填gradually。6whose考查定语从句。句意：电子商务是马云逐渐带到中国的，马云的成功鼓舞了许多中国电商。分析句子可知，此处为定语从句，定语从句中主语为Mas success，从句中缺限定词whose。故填whose。7on/upon考查固定搭配。句意：现在，马云正着眼于教育。focus on/upon为固定搭配，意为“着眼于”。故填on/upon。8challenges考查名词单复数。句意：但我要教年轻人如何面对挑战。结合句子可知，此处所填名词作动词face的宾
76、语，且挑战不止一个，用复数形式。故填challenges。9be made考查语态。句意：技术熟练的水手在平静的水面上是不可能练成的。分析句子可知，技术娴熟的水手与练成为逻辑上的被动关系，情态动词can后用动词原形。故填be made。10crueler/more cruel考查形容词比较级。句意：明天更残酷。分析句子可知，结合前文“Today is cruel.”及后文“But the day after tomorrow is beautiful.”可推测，明天比今天更加残酷，用比较级，cruel的比较级为crueler/more cruel。故填crueler/more cruel。.短
77、文改错Dear Simon，I am glad to hear that you go to your new school last week.But I also learn you are having trouble fit in at your new school.Such problems are quite normal.The following suggestions may be great help.First，I think you may need to communicate with your classmates as many as possible.In
78、this way，you will get to know other better.Second，take part in more activities might be a good idea，that helps develop friendly relationships.Lastly，when face with some tough problems，you might ask your teachers for help，who can usually offer to you some solutions.I hope my advice will be helpful.If
79、 there is anything more，please feel freely to contact me.Yours，Li Hua答案Dear Simon，I am glad to hear that you to your new school last week.But I also learn you are having trouble in at your new school.Such problems are quite normal.The following suggestions may be great help.First，I think you may nee
80、d to communicate with your classmates as as possible.In this way，you will get to know better.Second， part in more activities might be a good idea， helps develop friendly relationships.Lastly，when with some tough problems，you might ask your teachers for help，who can usually offer you some solutions.I hope my advice will be helpful.If there is anything more，please feel to contact me.Yours，Li Hua