1、第三节段尾设空题(2019全国)In an online class，developing healthy patterns of communication with professors is very important. 36 While I have only listed two of each，there are obviously many other situations that can arise.Students should be able to extend the logic(逻辑) of each to their particular circumstance
2、.Dos 37 Questions about subject content are generally welcomed.Before asking questions about the course design，read the syllabus(教学大纲) and learning management system information to be sure the answer isnt hiding in plain sight.Participate in discussion forums(论坛)，blogs and other openended forums for
3、 dialogue. 38 Be sure to stay on topic and not offer irrelevant information.Make a point，and make it safe for others to do the same.DontsDont share personal information or stories.Professors are not trained nurses，financial aid experts or your best friends.If you are in need of a deadline extension，
4、simply explain the situation to the professor. 39 Dont openly express annoyance at a professor or class. 40 When a student attacks a professor on the social media，the language used actually says more about the student.If there is truly a concern about a professors professionalism or ability，be sure
5、to use online course evaluations to calmly offer your comments.AThats what they are for.BTurn to an online instructor for help.CIf more information is needed，they will ask.DRemember that online professors get a lot of emails.EBelow are some common dos and donts for online learners.FEveryone has take
6、n a notsogreat class at one time or another.GAsk questions，but make sure they are good，thoughtful questions.语篇解读本文是一篇说明文。在网络课堂上，与教授建立健康有益的互动交流模式是非常重要的，作者在文中列举了一些规矩与禁忌。36答案E解析根据文章段落结构和本段首句“In an online class，developing healthy patterns of communication with professors is very important.”可知，在网络课堂上，与教授
7、建立健康的互动交流模式是非常重要的，作者在下文中列举了一些规矩与禁忌。故选项E符合语境。37答案G解析空后一句“Questions about subject content are generally welcomed.”解释了什么样的问题是受欢迎的，由此可知，G项“make sure they are good，thoughtful questions”与之相呼应，即要提一些好的经过缜密思考的问题。故选G。38答案A解析根据前一句“Participate in discussion forums(论坛)，blogs and other openended forums for dialog
8、ue.”可知，要参与论坛讨论、博客和其他开放式的对话论坛。而空格后一句说一定要紧扣主题，不要提供不相关的信息。A项“这就是它们的用途”承上启下，符合语境。故选A。39答案C解析根据本段“Professors are not trained nurses，financial aid experts or your best friends.”可知，不要分享个人信息或故事，如果需要更多的信息，他们会主动问起的。故选项C符合语境。40答案F解析通读本段，并根据本段主题句“Dont openly express annoyance at a professor or class.”可知，此处作者告诫读
9、者，每个人都可能曾经上过不太好的课，不要在社交媒体上攻击教授，不要公开表达对教授或班级的不满，要利用网络课程评价系统平静地提出你的意见。选项F符合上下文语境。一、题型解读段尾设空题常见题型有：(1)总结句：总结本段内容。(2)过渡句或细节句。二、解题技巧1总结句(1)找关键语句：重点阅读空前一、二句，确定关键词。(2)确定信号词：在选项中查找表结果、结论、总结等的词语，如therefore，thus，in short，to conclude等。(3)注意转折关系：利用选项中表示转折或对比的关联词确定选项内容与前文是否对立。(4)注意并列递进关系：利用选项中含有并列关系的词，与前文相似句式或词汇
10、复现等解题线索。例如：【真题感悟】中第39题就和前文形成递进关系。根据段首的中心句“Dont share personal information or stories.”及上文中“Professors are not trained nurses，financial aid experts or your best friends.”可知，教授不是训练有素的护士，不是经济援助专家，也不是你最好的朋友，不要分享个人信息或故事，如果他们需要更多信息的话，他们会主动问起的。所以选C。2过渡句如果选项中找不出与前文之间的关联，就应考虑下一段的开头句，看是否能与选项衔接。A(2019四川遂宁三诊)Co
11、ld weather during winter months may keep many people from leaving home and running in the open air.However，a new study shows that the 11drop in temperature is a good reason to run. 1 Many people say running in winter can be difficult.Two reasons are the low temperatures and 10bitter winds. 2 That co
12、uld be because lower temperatures reduce stress on the body.When you run in cold weather，your heart rate and the bodys dehydration(脱水) levels are lower than in warmer conditions. 3 This information comes from John Brewer，who is a professor of 1applied sport science at St.Marys.For this study，he and
13、other researchers put a group of people into a room they called an “environmental chamber”The researchers then 2recreated summer and winter weather conditions in the room. 4 Brewer says he and his team recorded biological measurements of the runners.He says that the most important thing for people w
14、ho run in cold conditions is to wear the right clothing.Wear gloves on your hands. 5 And especially wear more than one layer of clothing to keep sweat away from your skin.AYet many runners might find it easier than running in hot weather.BWe have good reasons to run in winter.CWear shoes that will k
15、eep you from falling.DMany feel nervous when running in the cold weather.EThe body needs less water on a cold day than in warm weather.FIn fact，running in cold weather helps improve ones performance.GThe test subjects were asked to run 10,000 meters under both conditions.语篇解读本文是一篇说明文。冬天的寒冷天气会阻止很多人跑步
16、。研究发现，在寒冷的冬天跑步要比在夏天更能提高人们的身体机能，文章对此项研究作了详细说明。1答案F解析该空前一句提到“然而，一项新的研究表明，气温下降是跑步的绝佳时机”，分析各选项可知，此句与F项(事实上，在寒冷的天气中跑步有利于改善身体机能)与此空意义是一致的。故选F。2答案A解析根据下文的内容“那是因为低温环境能够降低身体的压力，与温暖的环境相比，在寒冷的环境下跑步，你的心率和身体的脱水程度更低”可知，在冬天跑步比夏天更容易。分析各选项可知，A项(然而，还有许多跑步者可能发现严冬时节跑步比炎夏季节更容易)符合题意，故选A。3答案E解析根据该空上一句“与温暖的环境相比，在寒冷的环境下跑步，你
17、的心率和身体的脱水程度更低”可得出“寒冷的环境下，身体需要的水分相对来说比较少”。分析各选项可知，E项(与温暖的天气相比，寒冷的天气里身体需要的水分更少)符合题意，故选E。4答案G解析根据该空上一句“研究人员在房间里模拟夏天和冬天的天气状况”可知，G项“他们要求受试者在两种环境(冬天和夏天)下跑完10 000米”符合题意，故选G。5答案C解析根据上文“对于在寒冷的条件下跑步的人来说，最重要的是穿合适的衣服，戴上手套。”可知，C项(穿上防滑鞋以免摔倒)符合语境，故选C。B(2019湘赣十四校联考)Take Care of Your Spine(脊柱)The spine stands at the
18、 center of your health，providing your body with structure and support.12It also contains your spine cord，a massive collection of nerves conveying electric signals from the rest of your body to your brain. 6 .Maintaining good posture(姿势) is one of the most important things you can do to keep your spi
19、ne healthy.13Proper posture means standing or sitting while keeping your spine straight，except for its natural curves.Posture comes into play even when you are asleep.Sleeping on your side puts less stress on your spine than most other positions. 7 .Especially if you work at a desk most of the day，i
20、ts important to get up and 3stretch regularly. 8 .Stretch can help the muscles around your spine relax and allow bones to shift into better arrangement.Strength exercises like pushups(俯卧撑) can also help by 7strengthening the muscles around your spine.However，dont 4overdo the exercise，as repeated mot
21、ions can strain the muscles around your spine.Finally，your diet affects the health of your spine because many vitamins are necessary for bones and nerves.In particular，vitamins B and D are 8essential to keep bones healthy，so you may want to consider taking a 5supplement. 9 ，so it is also helpful to
22、do some of the back exercise outside.Many of the actions necessary to keep your spine healthy are 9identical to those used to 6preserve your health in other ways. 10 .AHowever，the latter is also absorbed from sunlightBStaying still for too long can be hard on your backCSo protect your back，the rest
23、of the body will benefitDProtecting your spine with yoga is also a necessary stepETry the following exercises to keep your spine more flexibleFExercise is also an important factor in the health of your spineGSo you should take the following factors into account to have a healthy spine6答案G解析本句位于段尾，起承
24、上启下的作用。上文强调脊柱的重要性，后文为介绍保护脊柱的建议，故可推知G项“所以你应该通过考虑以下因素来拥有健康的脊柱”符合题意，故选G项。7答案B解析根据下文“Especially if you work at a desk most of the day，its important to get up and stretch regularly.(尤其是如果你一天的大部分时间都在办公桌前工作，那么有规律地站起来伸展身体是很重要的)”可知，本空应强调太长时间保持不动不利于健康，故选B项。 8答案F解析根据后文“Stretch can help the muscles around your
25、spine relax and allow bones to shift into better arrangement.(伸展可以帮助脊柱周围的肌肉放松，让骨骼进入更好的排列)”可知，本段主要强调锻炼也是保持脊柱健康的一个重要因素，故选F。9答案A解析根据上文“In particular，vitamins B and D are essential to keep bones healthy，so you may want to consider taking a supplement.(特别是维生素B和D对保持骨骼健康是必不可少的，所以你可能要考虑服用补充剂)”和后文“so it is a
26、lso helpful to do some of the back exercise outside(所以在户外做一些背部运动也是有帮助的)”可推测本空是指要通过晒太阳维生素D才能被人体吸收，故选A。10答案C解析根据上文“Many of the actions necessary to keep your spine healthy are identical to those used to preserve your health in other ways.(许多保持脊柱健康的必要措施与那些用于以其他方式保持健康的措施是相同的)”可知，C项“因此，保护你的背部，也有益于身体的其他部位
27、”符合语境，故选C。.障碍词汇突破(一)阅读下列句子，并根据句意猜测画线部分的意思1Those scientists are expected to engage in theoretical research，not applied research.应用的2The Jorvik Viking Centre uses technology to recreate sounds and smells，so visitors feel they are on a journey back to the age of the Vikings.再现3Jimmy stretched out his h
28、and to take the candy.伸开4You are supposed to work hard，but dont overdo it and make yourself ill.把做得过火5The teacher has a point when she told us that online courses are a good supplement for school education.补充6As common sense，everyone should preserve his eyes with special care.保护(二)同义词语替换7The univers
29、ity hopes to strengthen its tie with the local community.promote 8Any experience，particularly the more difficult one，is essential to ones development and growth.important/vital9The twin sisters were identical in appearance but quite the opposite in character.same(三)一词多义10bitter adj.苦涩的；痛苦的；怨恨的；寒冷的，刺
30、骨的(1)Good medicine is bitter in the mouth.adj.苦涩的(2)Losing the match was a bitter disappointment for the team.adj.痛苦的(3)She is said to be very bitter about the unfair way she was treated.adj.怨恨的(4)Outside，a bitter east wind was accompanied by the heavy snow.adj.寒冷的，刺骨的11drop v(意外地)落下；降低，减少；遗漏，不予考虑 n
31、滴；下降，减少；落差(1)The climber slipped and dropped to his death.v.(意外地)落下(2)According to the latest weather forecast，temperatures can drop to freezing at night.v.降低(3)I have been dropped from the team because of injury.v.不予考虑(4)A few drops of green food coloring were added to create a sense of environment
32、al friendliness.n.滴(5)The result of the market research showed a sharp drop in profits.n.下降(6)The water was quite shallow but where the reef ended，there was a steep drop to the sandy ocean floor.n.落差.长难句理解12It also contains your spine cord，a massive collection of nerves conveying electric signals fr
33、om the rest of your body to your brain.句式分析本句为简单句，主干是It also contains your spine cord。后面a massive collection of nerves是spin cord 的同位语，后面conveying electric signals.是现在分词短语作定语。精美译文 它还包含脊髓，一个巨大的神经集合，将你身体其他部位的生物电信号传送到你的大脑。13Proper posture means standing or sitting while keeping your spine straight，excep
34、t for its natural curves.句式分析本句是主从复合句，由连词while连接。主句中的mean doing表示“意味着做”。注意区别mean to do，表示“打算做，意图做”。whiledoing 构成状语从句的省略，省略了 you are。 except for 的含义为“除以外”，但是往往强调“排除整体中的部分”或“美中不足之处”。精美译文 正确的姿势意味着站着或坐着的同时保持脊柱笔直，除了保持它的自然曲线。强化练(二十二) .七选五AAt the end of a long day，its all too easy to take a hot shower，brus
35、h your teeth，and then jump into bed. 1 As it turns out，going to bed with wet hair isnt as harmless as you probably thought.The first negative result of sleeping with wet hair is purely cosmetic(美容) 2 lf you try to style your hair in the morning after sleeping on it wet，youre probably going to have t
36、rouble styling the resulting curliness(卷曲)，funny waves，and flat sides.When you wake up，youre probably going to have to rewet it again to properly dry it and regain control. 3 Sleeping with wet hair does not immediately damage your hair，but it can certainly lead to hair breakage，because hair is weake
37、st when wet. 4 First，you can swap your cotton pillowcases for silk ones.Silk has a much smoother surface，so you wont experience as much unfortunate breakage.Next，you can make sure to sleep with your hair down，instead of up in a tight ponytail.In addition，you should replace your tight bands with a so
38、ft one that isnt going to roughly pull at night. 5 Dry oils and texturizing mousses(摩丝) are some of the best ways to ensure you dont wake up looking like a lion while protecting your precious hair from damage.Now that you know how bad sleeping with wet hair is，make sure youre not making these hairst
39、yle mistakes.AFinally，never skip out on applying product.BHere are some tips that can help dry any hair faster.CThis unnecessarily adds time to your morning routine.DIf you havent noticed，the ends of your hair tend to dry first.EYou cant predict how your wet hair is going to look in the morning.FBut
40、 have you ever thought about the risks of sleeping with wet hair?GIf you must sleep with wet hair，there are a few ways to minimize the damage.语篇解读本文是一篇说明文。文章主要介绍了晚上湿着头发睡觉所带来的麻烦，以及减少伤害头发的方法。1答案F 解析根据该空前一句“在漫长的一天结束后，洗个热水澡，刷牙，然后上床睡觉，这一切都太容易了”和后一句“事实证明，湿着头发睡觉并不像你想象的那么无害”可知，F项“但你有没有想过湿着头发睡觉的风险？”符合题意。故选F。
41、2答案E 解析根据该空前一句“湿着头发睡觉的第一个负面结果纯粹是美容”和后一句提到湿头发所带来的麻烦可知，E项“你无法预测你湿漉漉的头发在早上会是什么样子”符合题意。故选E。3答案C 解析根据该空前一句“当你醒来的时候，你可能需要重新弄湿它，使它完全干燥，并重新获得控制”可知，C项“这不必要地增加了你早上打理自己的时间”符合题意。故选C。4答案G 解析根据该空后一句“首先，把棉枕套换成丝绸枕套”以及下文中的“Next，you can make sure to sleep with your hair down，instead of up in a tight ponytail.(其次，确保你睡
42、觉的时候头发是垂下来的)”可知，此处为湿着头发睡觉时可以减少伤害的几个方法。故选G。5答案A解析根据该空后一句“干油和纹理摩丝是一些最好的方法，以确保你醒来看起来不像一头狮子，同时保护你珍贵的头发不受损伤”可知，A项“最后，千万不要忽略护发产品”符合题意。故选A。B(2019山东青岛二模)Anyone who knows me well would see me as an optimist. 6 This was the case for me on a particularly cold January day.I felt exhausted by the painful challen
43、ges I was dealing with in my personal life. 7 The gray sky blocked even a single ray of sunlight.About midway through the day，I left work to get some lunch.Still feeling negative，I noticed that the sun had come out for a moment.I began to think about my negative attitude and reminded myself that I w
44、as responsible for choosing my state of mind. 8 Even though I reminded myself of this truth，I couldnt make the change.As I stopped at a red light，I looked at the car in front of mine.The personalized license plate caught my eyeIt read “SUNZOUT”This brought an immediate smile to my face. 9 And in the
45、 midst of the longest，darkest，coldest winter，this in itself was a blessing.But then my eyes moved to the car that was next to the SUNZOUT vehicle.The license plate on that car read “GROUCH”This brought more than a smile to my face as I laughed out loud! Seeing the two opposite license plates at that
46、 exact moment in time strengthened my previous recognition of my ability to choose my attitude. 10 I returned to work and share my story with several coworkers who responded with warm laughter at what I refer to as my “message from beyond”I learned that day that when were feeling too discouraged to
47、bring ourselves out of an inactive state，relief is only a prayer away!AThe weather seemed to match my moodBPessimists think the opposite way，however.CHowever，even optimists can temporarily lose hope.DIt felt like a reminder that the sun was shining after all.EDo you think that the sunshine will spre
48、ad throughout your life?FI felt my spirit lift as I made the decision to choose a positive attitude.GWhile I could not ignore the pain I was going through，I could choose to think positively.语篇解读本文是一篇记叙文。作者讲述了自己有一天情绪低落，当看到两个截然相反的个性车牌时心情得到转变的故事。6答案C 解析前一句说“任何了解我的人都会认为我是一个乐观主义者”，后一句又说“这是我在一个特别寒冷的一月里遇到的
49、事情”，此处需要一个承上启下的过渡句，故C项(然而，即使是乐观主义者也可能暂时失去希望)符合语境。7答案A解析根据本空后的“The gray sky blocked even a single ray of sunlight.”可知，灰暗的天空甚至没有一缕阳光，故A项(天气似乎很符合我的心情)符合语境。8答案G解析根据本空前的“I began to think about my negative attitude and reminded myself that I was responsible for choosing my state of mind.”可知，我开始思考我的消极态度，并提
50、醒自己，我有责任选择我的心态，故G项(虽然我不能忽视我正在经历的痛苦，但我可以选择积极地思考)符合语境。9答案D解析根据本空前的“This brought an immediate smile to my face.”可知，这使我的脸上立刻露出了笑容，故D项(这感觉就像在提醒自己：阳光毕竟是灿烂的)符合语境。10答案F解析根据本空前的“Seeing the two opposite license plates at that exact moment in time strengthened my previous recognition of my ability to choose my
51、 attitude.”可知，看到那两个完全相反的车牌的那一刻加强了我之前对自己选择态度的能力的认识，故F项(当我决定选择一种积极的态度时，我感到精神振奋)符合语境。.完形填空(2019河北衡水中学联考)At 200 am this Friday morning，I received a text message from a friend，asking if I had any Smile Cards in Spanish.I immediately 11 that I didnt have any.However，I asked her why she wanted them 12 in S
52、panish and if Smile Cards in English would be 13 .To my 14 ，she said she had been one of the few selected by her high school to go on a service trip to Panama.She wanted to share the concept of Smile Cards and 15 with children in the villages.I was totally 16 and excited with hearing the news! So I
53、decided to stop 17 and call her to get more information about her service trip.She was leaving that same day at midnight.I told her I would 18 about it and let her know by afternoon if I could 19 any in Spanish.No luck till midday. 20 ，there was one translation of the original English Smile Card in
54、Spanish online.Carrying the 21 ，I headed over to a local printing shop and asked the employee if he could print 100 Smile Cards in Spanish by 6 pm.The employee said it was 22 to get it since he was working by himself and was 23 with orders.Disappointed，I 24 the English version of the Smile Card and
55、explained my 25 to him.Even he was excited and promised that hed try his best to get them 26 .When the clock 27 nine，the Spanish Smile Cards were ready.To express my gratitude，I brought some Indian food to this employee to thank him for his 28 .I quickly got into my car and 29 to my friends house，an
56、d she was patiently standing outside awaiting my 30 .We didnt get a chance to have a proper conversation but that was good enough.语篇解读本文是一篇记叙文。文章主要叙述了当作者得知朋友被派到巴拿马支教，需要西班牙语版的微笑卡之后，他想方设法，终于在朋友出发之前把西班牙语版的微笑卡送到了朋友的手里。11A.believed BimaginedCresponded Dnoticed答案C解析作者收到朋友的短信，问他是否有西班牙语版的微笑卡。作者立即回复(respond)
57、说没有。12A.specifically BuniversallyCfrequently Dofficially答案A解析“我”问朋友为什么专门要西班牙语版的微笑卡，英语版的微笑卡是否可以用。specifically特定地，专门地，故选A。13A.accurate BacceptableCvaluable Dflexible答案B解析“我”问朋友英语版的微笑卡是否可以用，故选B。14A.surprise BpuzzleCdisappointment Damusement答案A解析从下文可知，得知朋友要去巴拿马支教，这出乎“我”的意料，令“我”很吃惊。故选A。15A.solution Bamaz
58、ementCcuriosity Dkindness答案D解析朋友想和村里的孩子们一起分享微笑卡和善意的概念。根据常识可知kindness符合语境。故选D。16A.confused BrockedCconcerned Dsatisfied答案B解析听到这个消息，“我”完全震惊了。结合下文中作者立刻停止发信息，行动起来也可推断出。rock 在此处表示“使震惊”，属于熟词生义。故选B。17A.talking BtravelingCdiscussing Dtexting答案D解析结合文章第一句a text message的提示可知，此处表示“我”得知这个消息之后，立刻停止发短信。text在此用作动词，
59、意为“发短信”，故选D。18A.worry BbargainCenquire Dquarrel答案C解析朋友要在当天午夜出发，“我”告诉朋友“我”将去询问(enquire)关于西班牙版的微笑卡的事，故选C。19A.take charge of BsearchCcontrol Dget hold of答案D解析“我”告诉朋友“我”会在中午之前回复她是否能找到(get hold of)西班牙语版的微笑卡。20A.Strangely BFortunatelyCObviously DHopefully答案B解析幸运的是(fortunately)，“我”在网上找到了一个原版英语微笑卡的西班牙语翻译版，故
60、选B。21A.excitement BdreamCcourage Ddoubt答案A解析“我”在网上找到了原版英语微笑卡的西班牙语翻译版，当然很兴奋(excitement)，故选A。22A.necessary BworthwhileCimpossible Dnatural答案C解析雇员说不可能(impossible)在六点前印刷完微笑卡，因为他一个人在工作，并且忙于好多其他订单。23A.pleased BcuriousCoccupied Dnervous答案C解析参考上题解析。be occupied with忙于，故选C。be pleased with对满意；be curious about对
61、好奇；be nervous about对紧张。24A.took out Bgave outCmade up Dused up答案A解析“我”听到工作人员的话后很失望，然后拿出(take out)英文版微笑卡向他解释自己的处境，故选A。25A.identity BsituationCconcept Ddifficulty答案B解析参考上一题解析。situation处境。26A.designed BdecoratedCwritten Dprinted答案D解析向雇员解释了“我”的处境后，他变得很兴奋并承诺尽最大努力把微笑卡印(print)好。故选D。27A.recorded BexposedCst
62、ruck Dshook答案C解析当钟表在9点敲响时，西班牙语版的微笑卡印好了。strike在这里表示“(钟)敲(钟点)”。故选C。28A.commitment BjudgementCencouragement Dassessment答案A解析“我”非常感谢雇员(承诺尽力把微笑卡印好)，上文中的promised亦是提示。29A.stepped forward Bheld onCshowed up Dsped off答案D解析由前文可知，“我”的朋友在当天午夜出发，急需微笑卡，所以在拿到微笑卡之后，“我”驾车疾驰而去，speed off表示“(车)疾驰而去”，故选D。30A.apology Bar
63、rivalCexplanation Dparticipation答案B解析结合语境和常识可知，朋友正耐心地等待“我”的到来，故选B。.语法填空(2019福建厦门质检)China reached a milestone in space exploration on January 3,2019.Change4 31. (successful) landed on the far side of the moons surface.This is the first time in history that any country 32. (perform) a soft landing on
64、the back of the moon.It is also a huge win for Chinese scientists who have been planning out this work for 33. (year)Shortly after the landers 34. (arrive)，it sent back a photo of the Yutu rover(月球车) 35. (roll) slowly across the moons dusty surface.As 36. (expect)，the lander will conduct a number of
65、 challenging tasks.It will observe the lowgravity environment and explore 37. there is water or other resources.Later，soil samples 38. (collect) and returned to the earth.Scientists believe that the back of the moon is 39. (ancient) than the front，so the soil age is valuable for studying the early h
66、istory of the moon.Since the far side of the moon is quiet and free 40. electromagnetic interference(电磁干扰) from the earth，its a perfect place to research the space environment.We can expect plenty of moon news out of China in the near future.31答案successfully解析考查副词。修饰动词landed用副词，故填successfully。32答案ha
67、s performed解析考查时态。This is the first time that.表示“这是第一次”，that 从句中需要用现在完成时。33答案years解析考查名词复数。for years表示“多年来”，故填years。34答案arrival解析考查词形转换。该空前面出现了landers名词所有格，所以设空处应该填名词。arrive的名词形式为arrival。35答案rolling解析考查非谓语动词。the Yutu rover与roll之间是逻辑上的主谓关系，用现在分词表示主动，故填rolling。36答案expected解析考查省略。the lander与expect之间是被动
68、关系，此处省略了it is，故填expected。37答案whether/if解析考查宾语从句。句意为：它将观察低重力环境，探测是否有水或者其他资源。根据句意可知，此处表示“是否”，故填whether/if。38答案will be collected解析考查时态和语态。soil samples 与collect之间是被动关系，再根据前面的“will”判断此处应用一般将来时的被动语态，故填will be collected。39答案more ancient解析考查形容词的比较级。than表明此处应该使用形容词的比较级，故填more ancient。40答案from解析考查介词。句意为：由于月球背面很安静，没有地球的电磁干扰，它是研究空间环境的一个完美地点。free from表示“没有，免于”，故填from。
