大学英语六级-选词填空 专项训练

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Cloze: Questions 26 to 35 are based on the following passage.

Let's say you love roller-skating. Just the thought of __26__ on your roller-skates brings a smile to your face. You also know that roller-skating is excellent exercise. You have a __27__ attitude toward it.

This description of roller-skating __28__ the three components of an attitude: affect, cognition, and behavior. You love the activity; it's great fun. These feelings __29__ the affective or emotional component; they are an important ingredient in attitudes. The knowledge we have about the object constitutes the cognitive component of an attitude. You understand the health __30__ that the activity can bring. Finally, attitudes have a behavioral component. Our attitudes __31__ us to go outside to enjoy roller-skating.

Now, we don't want to leave you with the __32__ that these three components always work together __33__ . They don't; sometimes they clash. For example, let's say you love pizza (affective component); however, you have high cholesterol and understand (knowledge component) that eating pizza may be bad for your health. Which behavior will your attitude result in, eating pizza or __34__ it? The answer depends on which component happens to be stronger. If you are walking past a pizza restaurant at lunchtime, your emotions and feelings probably will be stronger than your knowledge that pizza may not be the best food for your health. In that instance, you have pizza for lunch. If you are at home trying to decide where to go for dinner, however, the knowledge component may __35__ , and you decide to go where you can eat a healthier meal.

KEY:

26 [N]空格前的 of 表明此处应填入动名词，与介词 on 搭配。空格后的 roller-skates 指“溜冰鞋”，词库的动名词中，strapping 可与 on 搭配，后接表示鞋子的宾语，意为“用带子系上(鞋子）”，符合此处语境。

27[I]此处需填入修饰 attitude 的词，由 a 可知需填入的单词是辅音字母开头的。上文提到“你”喜欢溜旱冰，穿上鞋子就微笑。“你”同样知道溜旱冰是很好的运动，因此这种态度是积极正面的，故填入 positive “积极的”。

28[D]此处应填入谓语动词，由主语 description 可知是第三人称单数形式。文章开头的 Let's say...表明第一段对溜旱冰的描绘是举例，因此此处符合语义逻辑的是 illustrates“说明，阐明”，该处句子的意思是“对溜旱冰的描述说明了态度有三个组成部分”。

29[C]此处应填入谓语动词，由主语 feelings 可知是动词原形。本句要说明态度的第一个部分 affect “情感”，主语 these feelings 指的是对溜旱冰这项活动的喜爱之情，highlight “强调，突出”与宾语 the affective or emotional component“情感或感情部分”搭配合理。而 prevail“流行，盛行；获胜”是不及物动词,prompt “推动；提示”在语义上也不合逻辑。

30[B]空格在名词 health 之后，可能填入副词或名词。因为空格后的 that the activity can bring“这项活动可以带来的”是定语从句，故应填入名词，充当从句先行词。第一段提到“你”知道溜旱冰是极好的运动(excellent exercise)，因此本句填入语义相关的 benefits “好处”。

31[L]此处应填入谓语动词，构成～sb. to do sth.结构，主语 attitudes 表明该词是原形。符合要求的是 prompt “促使”，句子意思是“我们的态度促使我们去外面享受溜旱冰的乐趣”。

32 [E]空格前的 the 表明此处应填入名词，空格后 that 引导的是同位语从句，意为“这三个组成部分总是协调统一的”。impression“印象”符合上下文语义，指“我们不想给你留下这种印象”,呼应后文“它们并不是”。

33[H]空格在 work together 之后，故应填入副词。perfectly“完美地”符合语境，指这三个部分配合完美。上下文没有表示动作先后的描述，故 primarily“主要地，首先”不对。

34 [A]由 or 可知此处应填入与 eating 并列的动名词，意思上表示相反的情况，因此 avoiding“避免”正确，指“吃比萨还是不吃”。

35[J]空格前的 may 表明此处应填入动词原形，且是不及物动词。上一句提到情感部分可能更强的情形（probably will be stronger），本句指认知部分更强的情况，故填入与 be stronger 近义的 prevail“获胜”。

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Questions 26 to 35 are based on the following passage.

The robotics revolution is set to bring humans face to face with an old fear—man-made creations as smart and capable as we are but without a moral compass. As robots take on ever more complex roles, the question naturally 26__________ : Who will be responsible when they do something wrong? Manufacturers? Users? Software writers? The answer depends on the robot.
Robots already save us time, money and energy. In the future, they will improve our health care, social welfare and standard of living. The 27__________ of computational power and engineering advances will 28__________ enable lower-cost in-home care for the disabled, 29__________ use of driverless cars that may reduce drunk- and distracted-driving accidents and countless home and service-industry uses for robots, from street cleaning to food preparation.
But there are 30__________ to be problems. Robot cars will crash. A drone (遥控飞行器) operator will 31__________ someone's privacy. A robotic lawn mower will run over a neighbor's cat. Juries sympathetic to the 32__________ of machines will punish entrepreneurs with company-crushing 33__________ and damages. What should governments do to protect people while 34__________ space for innovation?
Big, complicated systems on which much public safety depends, like driverless cars, should be built, 35__________ and sold by manufacturers who take responsibility for ensuring safety and are liable for accidents. Governments should set safety requirements and then let insurers price the risk of the robots based on the manufacturer's driving record, not the passenger's.

A. arisesB. ascendsC. boundD. combinationE. definite
F. eventuallyG. interfereH. invadeI. manifestingJ. penalties
K. preservingL. programmedM. proximatelyN. victimsO. widespread

阅读参考答案
26 [A]空格位于句末，前面是副词naturally和主语thequestion,因此应填入不及物动词，充当句子谓语。由As从句中takeon所用的一般现在时，可知填入的动词应是第三人称单数。上文提到人们惧怕机器人缺乏道德界限(withoutamoralcompass),空格后是具体的问题，因此本句应表示问题自然“出现，引起”，故arises符合要求。另一个第三人称单数动词是ascends“上升；攀登”，与question搭配不当。
27[D]由空格前的the和空格后的of可知此处应填入名词。介词of后是两个并列的名词结构：computationalpower“计算能力”和engineeringadvances“工程学发展”。由此可知名词中combination“结合体”符合语义逻辑。
28 [F]空格位于助动词will和谓语动词enable之间，故应填入副词。本句表示某物能够降低残疾人的家庭护理费用。副词中符合语义逻辑的是eventually“终于，最终”。
29[O]空格在名词use之前，故应填入形空词或分词。本句的结构是...useofdriverlesscarsandcountless...usesforrobots,因此填入的词与countless“无数的”语义相关，应指运用得“多”或“广”，故填入widespread“广泛的，普遍的”,指机器人最终将普遍运用在无人驾驶汽车、家用和服务业等方面。
30[C]空格处应填入分词或形容词，构成be...to的搭配。上文提到机器人最终会普遍运用，本句用but转折，提到problems“问题”，接着下文列举了具体的问题，因此空格处填入bound“肯定的，一定的”，指“问题肯定会有”。
31 [H]空格前的will表明此处应填入及物动词原形，与后面的名词privacy“隐私”构成搭配。invade“入侵，侵犯”符合要求，指无人机可能会“侵犯”别人的隐私。
32 [N]空格在the和of之间，故应填入名词。本句指陪审团对机器的……表示同情，会让企业家受到惩罚。上文说机器人会发生碰撞，无人机侵犯隐私，机器人割草机轧压邻居家的猫。这些都是机器的“受害者”，故victims“受害人，牺牲品”符合语义逻辑。
33 [J]空格前的company-crushing是复合形容词，表示“令公司压力大的，可摧毁公司的”，故应填入与damages“赔偿金”并列的名词，形式上也是复数，作punish的间接宾语。故penalties“罚金”符合要求。
34 [K]空格前的while是连词，故应填入动名词形式。由宾语space“空间”,可知搭配恰当的是preserving“保护，保留”，句子意为：政府在给创新“保留”空间时，应该做些什么来保护人们呢？
35[L]空格与过去分词built和sold并列，故也应是表被动的过去分词形式。本句指大型复杂系统(systems)应该由厂商创建……并销售。符合语义逻辑、并与systems搭配的是programmed“规划”。

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Questions 26 to 35 are based on the following passage.

Pursuing a career is an essential part of adolescent development. "The adolescent becomes an adult when he26__________ a real job." To cognitive researchers like Piaget, adulthood meant the beginning of an27__________ .
Piaget argued that once adolescents enter the world of work, their newly acquired ability to form hypotheses allows them to create representations that are too ideal. The28__________ of such ideals, without the tempering of the reality of a job or profession, rapidly leads adolescents to become29__________ of the non-idealistic world and to press for reform in a characteristically adolescent way. Piaget said: "True adaptation to society comes30__________ when the adolescent reformer attempts to put his ideas to work."
Of course, youthful idealism is often courageous, and no one likes to give up dreams. Perhaps, taken31__________ out of context, Piaget's statement seems harsh. What he was32__________ , however, is the way reality can modify idealistic views. Some people refer to such modification as maturity. Piaget argued that attaining and accepting a vocation is one of the best ways to modify idealized views and to mature.
As careers and vocations become less available during times of33__________ , adolescents may be especially hard hit. Such difficult economic times may leave many adolescents34__________ about their roles in society. For this reason, community interventions and government job programs that offer summer and vacation work are not only economically __35__ but also help to stimulate the adolescent's sense of worth.


A. automaticallyB. beneficialC. capturingD. confusedE. emphasizing
F. entranceG. excitedH. existenceI. incidentallyJ. intolerant
K. occupationL. promisesM. recessionN. slightlyO. undertakes

阅读参考答案
26 [O]空格所在句子为 when 引导的时间状语从句，从句中缺少谓语动词，且根据主句中谓语动词 becomes可进一步确定此处应填入动词的第三人称单数。宾语是 a real job, undertakes“承担;从事”符合语境，句子表示从事一份真正的工作时，他（她）才真正步人成年人的行列。而 promises“承诺”不符合语义逻辑。
27[K]空格前面的不定冠词 an 决定了此处应填入一个首发音是元音的名词。上句提到，青少年真正步入成年人行列是当他从事一份真正的工作时，也就是说成年意味着一份职业的开始,故填入 occupation“职业”合适。
28[H]空格前面的 the 和后面的 of 决定了此处应填入名词，和后面的 of such ideals 搭配。existence“存在”符合语义逻辑，表示这些理想的存在。
29[J]空格前面是动词 become,可判断此处应填入形容词或名词。前面提到青少年会产生一些过于理想化的想法，那么对于这个不那么理想的世界应该是“接受不了”或“难以忍受的”，故填入 intolerant“无法忍受的”。
30 [A]空格位于动词 comes 之后，when 引导的状语从句之前，所在句子不缺少主要成分，可判断此处需要填入副词。从逻辑上推断，当青少年改革者试图将他的想法付诸工作实践时，对社会的真正适应就是自然而然的了，故 automatically“自动地；自然而然地”符合语境。
31[N]空格所在部分为一个固定短语 take... out of context,意为“断章取义，脱离上下文”,其中 take 的宾语应是句子的主语 Piaget's statement,所以该过去分词短语在句子中作状语，且不缺少主要成分，由此可判断此处需要填入一个副词。本句要说明在什么情况下，皮亚杰的论断或许太过苛刻，填入 slightly“轻微地”合适，意为“稍加孤立地看”。
32[E]空格所在部分为 what 引导的主语从句，从句缺少谓语动词，由前面的助动词 was 可判断此处应填入动词的现在分词形式,本句的表语是 the way“那种方式”。emphasizing“强调”符合语境，表示他意在强调的是那种方式。
33[M]空格前面的 of 决定了此处应填入名词或动名词形式。就业岗位越来越少，所以应该是处于萧条时期，且根据下文 difficult economic times 也可判断出 recession“衰退”符合语义逻辑。
34 [D]空格所在部分为“leave sb.+宾语补足语”结构，空格填入的单词作 leave 的宾补，且能与后面的about 搭配，可判断此处应填入形容词或动词的分词形式。处于这样的经济困难时期，很多青少年或许对他们在社会中扮演的角色应该是“迷茫”或“困惑”的，词库中符合这一语义的是 confused“困惑的；混乱的”。
35[B]空格所在句子缺少谓语，由前面的助动词 are 可判断此处应填入形容词或动词的分词形式。根据主语community interventions and government job programs 和空格前的 economically, 可知填入beneficial“有益的”，表示社区干预和政府提供的就业计划不仅使青少年在经济上受益。

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Questions 26 to 35 are based on the following passage.

It is important that scientists be seen as normal people asking and answering important questions.Good, sound science depends on 26, experiments and reasoned methodologies. It requires awillingness to ask new questions and try new approaches. It requires one to take risks and experiencefailures. But good science also requires 27 understanding,clear explanation and concisepresentation.

Our country needs more scientists who are willing to step out in the public 28 and offer theiropinions on important matters. We need more scientists who can explain what they are doing inlanguage that is 29 and understandable to the public. Those of us who are not scientists should alsobe prepared to support public engagement by scientists, and to 30 scientific knowledge into ourpublic communications.

Too many people in this country, including some among our elected leadership, still do notunderstand how science works or why robust, long-range investments in research vitally matter. In the1960s, the United States 31 nearly 17% of discretionary (可酌情支配的) spending to research anddevelopment,32 decades of economic growth. By 2008, the figure had fallen into the single33 This occurs at a time when other nations have made significant gains in their own researchcapabilities.

At the University of California (UC), we 34 ourselves not only on the quality of our research,but also on its contribution to improving our world. To 35 the development of science from the labbench to the market place, UC is investing our own money in our own good ideas.

A. Arena B. contextual

C. Convincing D. devoted

E. Digits F. hasten

G. Hypotheses H. impairing

I. Incorporate J. indefinite

K. Indulge L. inertia

M. Pride N. reaping

O. Warrant

名词：A.arena舞台，竞技场；E.digits数字；G.hypotheses假设；L.inertia惯性，惰性；O.warrant授权，授权令

动词：D.devoted献身于，把……专用于；F.hasten加速；H.impairing损害；I.incorporate合并，使并入；K.indulge放纵，使沉溺于；M.pride以……为豪；N.reaping收获

形容词：B.contextual上下文的，情境的，前后关联的；C.convincing有说服力的，使人信服的；J.indefinite不确定的

26．G.hypotheses。

27．B.contextual。

28．A.arena。空格位于形容词之后，据此判断可填入名词，并与public连用构成固定搭配。故推测句意为“我们的国家需要更多科学家登上公共舞台”。因此填入A.arena“舞台，竞技场”。在备选项中，digitS意为“数字”，inertia意为“惯性，惰性”，warrant意为“授权，授权令”，均不符合文意，且不能与public搭配，故排除。

29．C.convincing。空格位于以that引导的定语从句中，此定语从句使用了主系表结构，据此判断应填入形容词，且此形容词可以用来修饰language“语言”。根据句意“他们能够用令人信服并且让人们听得懂的语言，对公众解释自己的所作所为”可知，答案为C.convincing“有说服力的，使人信服的”。在备选项中，indefinite意为“不确定的”，与文意相反，故排除。

30．I.incorporate。

31．D.devoted。

32．N.reaping。空格位于句子的主体结构之外，描述主句动词所引发的结果，属于结果状语成分，据此判断可填人现在分词。根据句意“美国将大约17％的可支配收入专门用于科学研究，________了数十年的经济增长”可知，答案为N.reaping“收获”。在备选项中，impairing意为“损害”，不符合文意，故排除。

33．E.digits。

34．M.pride。空格位于句子的谓语动词处，且此动词应能够与on构成固定搭配，备选项中只有M.pride“以……为豪”，符合语法要求。所在旬意为“我们不仅为我们的科研质量自豪，也为我们的科研为改进世界所做出的贡献自豪”。在备选项中，hasten意为“加速”，indulge意为“放纵，使沉溺于”，均与文意不符，故排除。

35．F.hasten。

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Let’s all stop judging people who talk to themselves. New research says that those who can’t seem to keep their inner monologues(独白) in are actually more likely to stay on task, remain __26__ better and show improved perception capabilities. Not bad, really, for some extra muttering.

According to a series of experiments published in the Quarterly Journal of Experimental Psychology by professors Gary Lupyan and Daniel Swignley, the act of using verbal clues to __27__ mental pictures helps people function quicker.

In one experiment, they showed pictures of various objects to twenty __28__ and asked them to find just one of those, a banana. Half were __29__ to repeat out loud what they were looking for and the other half kept their lips __30__. Those who talked to themselves found the banana slightly faster than those who didn’t，the researchers say. In other experiments, Lupyan and Swignley found that __31__ the name of a common product when on the hunt for it helped quicken someone’s pace, but talking about uncommon items showed no advantage and slowed you down.

Common research has long held that talking themselves through a task helps children learn, although doing so when you’ve __32__ matured is not a great sign of __33__. The two professors hope to refute that idea, __34__ that just as when kids walk themselves through a process, adults can benefit from using language not just to communicate, but also to help“augment thinking”.

Of course, you are still encouraged to keep the talking at library tones and, whatever you do, keep the information you share simple, like a grocery list. At any __35__, there’s still such a thing as too much information.

26. 【解析】F。空格前的remain为系动词，因此空格处需要填入一个形容词；根据前面的句意“……更有可能坚持做一件事”，可知focused最为符合，表示“保持全神贯注”，因此本题选F。

27. 【解析】L。根据空格前的to可判断空格处应填入动词原形，根据句意，“使用口头提示来记忆图像”，可知选项L符合。

28. 【解析】0。空格前是量词twenty，因此空格处需填入一个名词复数；再由前边的“In one experiment”可知这是一个实验，所以这里选择volunteers（志愿者）最为合适，故本题选0。

29. 【解析】H。空格前后分别为be动词were和介词to，因此空格处需要填入一个动词的被动语态；根据句意，“一半人被_____要大声地重复他们要找的东西，”可知instructed（通知，指导）最为合适，因此本题答案选H。

30. 【解析】J。根据句子结构可判断空格处需要填入一个形容词。再由the other half对应的是前边的Half， 可知这里的情况和前边的不同，前边说repeat out loud（大声地重复），后边自然就是要表达“不说话” 的意思，keep one’s lips sealed即“闭上嘴巴、不说话”的意思，故本题选J。

31. 【解析】M。空格前的that引导的是宾语从句，空格与后面的名词词组the name of a common product共同充当宾语从句的主语，因此空格处应填入动词的-ing形式，根据句意可判断uttering更为合适，故本题选M。

32. 【解析】A。空格所在句是一个现在完成时态，空格前后组成谓语动词have matured，因此空格处实际上并不缺成分，只可能填入一个副词来修饰动词matured，根据单词意思，这里应选apparently。

33. 【解析】C。根据空格前边的a great sign of可知，空格处缺少一个名词；再根据句意，“当你足够成熟时，自言自语并不能显示出你的_____”，可知这里填入brilliance更为合适。故本题选C。

34. 【解析】D。空格前边是一句完整的话，空格后是that从句，由此判断空格处 填入动词的-ing形式，作为前边句子的伴随状语，并引导后面的宾语从句；分析选项，动词的-ing形式只剩下claiming这一个词，故本题选D。

35. 【解析】N。空格处需要填入一个名词，与前边的At any构成介词词组；结合整篇文章的大意，此处填入volume最为合适，故本题选N。

2017 年 6 月六级考试真题(第 2 套)

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After becoming president of Purdue University in 2013, Mitch Daniels asked the faculty to prove that their students have actually achieved one of higher education’s most important goals: critical thinking skills. Two years before, a nationwide study of college graduates had shown that more than a third had made no

26 gains in such mental abilities during their school years. Mr. Daniels needed to27 the high cost of attending Purdue to its students and their families. After all, the percentage of Americans who say a college degree is “very important” has fallen 28 in the last 5-6 years.

Purdue now has a pilot test to assess students’ critical thinking skills. Yet like many college teachers around the U.S., the faculty remain29 that their work as educators can be measured by a “learning

30” such as a graduate’s ability to investigate and reason. However, the professors need not worry so much. The results of a recent experiment showed that professors can use31 metrics to measure how well students do in three key areas: critical thinking, written communication, and quantitative literacy.

Despite the success of the experiment, the actual results are worrisome, and mostly32 earlier studies. The organizers of the experiment concluded that far fewer students were achieving at high levels on critical thinking than they were doing for written communication or quantitative literacy. And that conclusion is based only on students nearing graduation.

American universities, despite their global33 for excellence in teaching, have only begun to demonstrate what they can produce in real-world learning. Knowledge-based degrees are still important, but employers are34 advanced thinking skills from college graduates. If the intellectual worth of a college degree can be35 measured, more people will seek higher education---and come out better thinkers.

A) accurately B) confirm C) demanding D) doubtful E) drastically

F) justify G) monopolized H) outcome I) predominance J) presuming

K) reputation L) significant M) signify N) simultaneously O) standardized

26.【解析】L。空格前是形容词 no,空格后是名词gains，所以此空应该填入一个形容词。根据句意，选项中只有 significant符合句意。havemadenosignificantgains意为“未能取得显著提升”。故选 L。

27.【解析】F。空格前是不定式 to，空格后是名词词组 the high cost,所以此空应该填入一个动词原形。根据句意，动词原形中只有 justify 符合句意。故选 F。

28.【解析】E。空格前是 has fallen，空格后是时间状语 in the last 5-6 years，本句是现在完成时且不缺句子成分，所以此空应该填入一个副词。根据句意，选项中只有 drastically 符合句意。故选 E。

29.【解析】D。空格前是动词 remain，空格后是 that 引导的表语从句，所以此空应该填入一个形容词。根据句意，选项中只有 doubtful 符合句意。故选 D。

30【. 解析】H。双引号前是不定冠词 a，所以此空应填入一个名词。根据句意，选项中只有 outcome

符合句意。故选 H。

31.【解析】O。空格前是动词 use，空格后是名词 metrics，所以此空应该填入一个形容词或名词。根据句意，选项中只有 standardized 符合句意。故选 O。

32.【解析】B。空格前是副词 mostly，空格后是名词词组 earlier studies，由空格所在小分句开头的 and 以及本句主语 the actual results 可知，此空应该填入一个动词原形。根据句意，选项中只有

confirm 符合句意。故选 B。

33.【解析】K。空格前是形容词 global，空格后是介词调组 for excellence in teaching，所以此空应该填入一个名词。根据句意，选项中只有 reputation 符合句意。故选 K。

34.【解析】C。空格前是系动词 are,空格后是名词词组 advanced thinking skills,所以此空应该填入一个动词，构成现在进行时。根据句意，“基于知识的学位仍然很重要，但雇主要求大学毕业生具备较强的思维能力。” 选项中只有 demanding (要求；查问）符合句意。demand from 为固定搭配， 意为“向 要求”。故选 C。

35.【解析】A。空格前是系动词 be，空格后是动词的被动语态 measured，所以此空应该填入一个副词，以修饰 measured。根据句意，选项中只有 accurately 符合句意。故选A。

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2017 年 6 月六级考试真题(第 3套)

Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed. This phenomenon is often26 to as the “first-night-effect”. Researchers from Brown University found that a network in the left hemisphere of the brain “remained more active” than the network in the right side of the brain. Playing sounds into the right ears (stimulating the left hemisphere) of

27 was more likely to wake them up than if the noises were played into their left ear.

It was28 observed that the left side of the brain was more active during deep sleep. When the researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could not be stimulated in the same way during deep sleep. The researchers explained that the study demonstrated when we are in a29 environment the brain partly remains alert so that humans can defend themselves against any 30 danger.

The researchers believe this is the first time that the “first-night-effect” of different brain states has been31 in humans. It isn’t, however, the first time it has ever been seen. Some animal32 also display this phenomenon. For example, dolphins, as well as other33 animals, shut down one hemisphere of the brain when they go to sleep. A previous study noted that dolphins always34 control their breathing. Without keeping the brain active while sleeping, they would probably drown. But, as the human study suggest, another reason for dolphins keeping their eyes open during sleep is that they can look out for 35 while asleep. It also keeps their physiological processes working.

A) classified B) consciously C) dramatically D) exotic E) identified

F) inherent G) marine H) novel I) potential J) predators

K) referred L) species M) specifically N) varieties O) volunteers

26.【解析】K。空格前是系动词 is 和副词 often，空格后是不定式 to，所以此空应该填入一个形容词或者动词的-ed 形式。选项 referred 符合句意。be referred to as 为固定搭配，意为“被称为”。故选 K。

27.【解析】O。空格前是名词词组 the right ears 和介词 of ，空格后是系动词 was，所以此空应该填入一个表示人的名词，表示所属关系。选项 volunteers 符合句意。故选 O。

28.【解析】M。空格前是系动词 was，空格后是动词的-ed 形式observed，所以此空应该填入一个副词，修饰 observed。选项 specifically

符合。故选 M。

29.【解析】H。空格前是不定冠词 a；空格后是名词 environment，所以此空应该填入一个形容词。选项 novel 符合句意。故选 H。

30.【解析】I。空格前是代词 any ，空格后是名词 danger，所以此空应该填入一个形容词。选项 potential 符合句意。故选 I。

31.【解析】E。空格前是现在完成时的标志词 has been ，空格后是介词词组 in humans，所以此空应该填入一个动词的-ed 形式。选项 identified 符合句意。故选 E。

32.【解析】L。空格前是名词 animal，空格后是副词 also 和动词 display,谓语和宾语完整，所以此空应该填入一个名词，与 some animal 构成名词词组，作主语。选项 species 符合句意。故选 L。

33.【解析】G。空格前是代词 other，空格后是名词 animals，所以此空应该填入一个形容词。选项 marine 符合句意。故选 G。

34.【解析】B。空格前是宾语从句的主语 dolphins 和副词 always，空格后是谓语动词 control， 所以此空应该填入一个副词，修饰 control。

选项 consciously 符合句意。故选 B。

35.【解析】J。空格前是谓语动词 look out for，空格后是时间状语从句 while asleep，所以此空应该填入一个名词，作表语从句的谓语。

选项 predators 符合句意。故选 J。

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   In the past 12 months,Nigeria has suffered from a shrinking economy, a sliding currency, and a prolonged fuel shortage. Now, Africa’s largest in facing a food crisis as major tomato fields have been destroyed by an insect,leading to a nationwide shortage and escalating prices.

The insect, Tutaabsoluta, has destroyed 80% of farms in Kaduna, Nigeria's largest tomato producing state, leading the government there to declare a state of

26    .The insect, also known as the tomato leaf miner, devastates crops by  27   on fruits and digging into and moving through stalks.It   28   incredibly quickly,

 breeding up to 12 generations per year if conditions are favorable. it is believed to have  29  in South America in the early 1900s, and later spread to Europe before crossing over to sub-Saharan Africa.

In Nigeria, where tomatoes are a staple of local diets,the insect's effects are devastating. Retail prices for a   30   of tomatoes at local markets have risen from $0. 50 to $2.50. Farmers are reporting steep losses and a new $20 million tomato-paste factory has   31   production due to the shortages.

Given the moth's ability also to attack crops like pepper and potatoes,  Audu Ogbeh, Nigeria's minister of agriculture, has warned that the pest may"create serious problems for food   32  "in the country.Ogbeh says experts are investigating how to control the pest’s damage and prevent its spread, which has gone largely   33  until now.

Despite being the continent's second-largest producer of tomatoes, Nigeria is 34    on $1 billion worth of tomato-paste imports every year.as around 75% of the local harvest goes to waste thanks to a lack of proper storage facilities. A further 35   in local supplies is yet another unwelcome setback to the industry.

A)  dependent      B) Embarking          C) emergency      D) feeding  E) grazes   

F)  halted   G) handful    H) multitude    I）originated    J) reduction           

    K) reproduces        L）security     M）terrorN) unchecked      O）unchecked

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