语法填空三年高考(2017-2019)真题与名校模拟与答案

2017—2019年高考全国卷【语法填空】专题练习语法填空专题练习（13）2017全国卷Ⅰ，15分词数：180阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

There has been a recent trend in the food service industry toward lower fat content and less salt. This trend, which was started by the medical community (医学界) 61______ a method of fighting heart disease, has had some unintended side 62______ (effect) such as overweight and heart disease—the very thing the medical community was trying to fight.Fat and salt are very important parts of a diet. They are required 63______ (process) the food that we eat, to recover from injury and for several other bodily functions. When fat and salt 64______ (remove) from food, the food tastes as if it is missing something. As 65______ result, people will eat more food to try to make up for that something missing. Even 66______ (bad), the amount of fast food that people eat goes up. Fast food 67______ (be) full of fat and salt; by 68______ (eat) more fast food people will get more salt and fat than they need in their diet.Having enough fat and salt in your meals will reduce the urge to snack(吃点心) between meals and will improve the taste of your food. However, be 69______ (care) not to go to extremes. Like anything, it is possible to have too much of both, 70______ is not good for the health.61_________62____________63__________ 64___________ 65___________66___________67___________68___________69___________ 70___________语法填空专题练习（14） 2017全国卷Ⅱ，15分词数：180阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

2019年高考英语真题和模拟题分项汇编专题08 语法填空一、2019年高考真题I.记叙文1. 【2019·全国卷I】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88°,there is evidence ___61___ they range all the way across the Arctic, and as far south as James Bay in Canada. It is difficult to figure out a global population of polar bears as much of the range has been ___62___ (poor) studied; however, biologists calculate that there are about 20,000-25,000 polar bears worldwide.Modem methods ___63___ tracking polar bear populations have been employed only since the mid-1980s, and are expensive ___64___ (perform) consistently over a large area. In recent years some Inuit people in Nunayut ___65___ (report) increases in bear sightings around human settlements, leading to a ___66___ (believe) that populations are increasing. Scientists have responded by ___67___ (note) that hungry bears may be congregating(聚集) around human settlements, leading to the illusion(错觉) that populations are ___68___ (high) than they actually are. Of ___69___ nineteen recognized polar bear subpopulations, three are declining, six ___70___ (be) stable, one is increasing, and nine lack enough data.【语篇解读】本文为科普文类说明文，介绍了北极熊的生存现状。

三年（2017-2019）高考真题英语分项汇编专题21 语法填空一、2019年高考真题1. 【2019·全国卷I】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88°,there is evidence ___61___ they range all the way across the Arctic, and as far south as James Bay in Canada. It is difficult to figure out a global population of polar bears as much of the range has been ___62___ (poor) studied; however, biologists calculate that there are about 20,000-25,000 polar bears worldwide.Modem methods ___63___ tracking polar bear populations have been employed only since the mid-1980s, and are expensive ___64___ (perform) consistently over a large area. In recent years some Inuit people in Nunayut ___65___ (report) increases in bear sightings around human settlements, leading to a ___66___ (believe) that populations are increasing. Scientists have responded by ___67___ (note) that hungry bears may be congregating(聚集) around human settlements, leading to the illusion(错觉) that populations are ___68___ (high) than they actually are. Of ___69___ nineteen recognized polar bear subpopulations, three are declining, six ___70___ (be) stable, one is increasing, and nine lack enough data.【语篇解读】本文为科普文类说明文，介绍了北极熊的生存现状。

三年（2017-2019）年高考真题分项汇编专题02 代词、介词和介词短语一、2019年高考真题1.【2019·天津卷·单项填空】3.A study shows the students who are engaged in after-school activities are happier than _________who are not.A. onesB. thoseC. theseD. them【答案】B【解析】考查代词。

句意：一项研究表明，参加课外活动的学生比不参加课外活动的学生更开心。

空格处代词与the students是对应关系，可以用the ones或者those替代。

“them”指代的是前边提到的复数名词，不能与the students形成对应关系。

“these”一般不用定语从句修饰。

故选B。

2.【2019·江苏卷·单项填空】27.Favorable policies are ___________ to encourage employees' professional development.A. in effectB. in commandC. in turnD. in shape【答案】A【解析】考查介词短语。

句意：好的制度政策实际上都会激发员工的专业水平的提升。

A. in effect实际上；B. in command指挥；C. in turn轮流，依次；D. in shape在外形上，处于良好的状态。

故选A。

3.【2019·新课标I卷·语法填空】Modem methods ___63___ tracking polar bear populations have been employed only since the mid-1980s, and are expensive to perform (perform) consistently over a large area.【答案】of/for【解析】考查介词用法。

三年（2017-2019）新课标卷高考英语试题研究专题04 语法填空新课标全国卷语法填空题，是2014年开始实施的，到2019年，已经连续考了六年。

根据《2019年高考英语科全国卷考纲说明》，对语法填空题型约定了命题素材为短文形式。

要求如下：在一篇200词左右的语言材料中留出10个空白，部分空白的后面给出单词的基本形式，要求考生，阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。

2016-2019年新课标卷高考英语语法填空试题分析：年份试卷类型体裁词数话题考点分布2019年新课标卷I说明文185 介绍了北极熊的生存现状提示词7个61.同位语从句62. 副词用法63. 介词64. 非谓语动词65. 时态66. 名词67. 非谓语动词68. 形容词比较级69. 定冠词70. 主谓一致。

新课标卷II记叙文195 九十高龄的Irene作为英国最年长的全职员工，，她被颁发“年度女士”称号。

提示词7个61.非谓语动词62.定语从句63.副词用法64.动词时态65.不定式作定语66.动词时态67.并列连词68.非谓语动词69.冠词用法70.形容词作表语新课标卷III记叙文180 作者去夏威夷度假途中的经历以及到了主人家后受到的礼遇。

提示词7个61.副词62.不定式63.介词64.定语从句65.一般过去时66.名词67.形容词68.副词69.一般过去时的被动语态70.分词2018年新课标卷I 说明文196 跑步的好处，它可以帮助人们延年益寿提示词7个61.副词的级62. 不定式63.动名词64.时态65.比较句型66.定语从句67.名词数68. 词形变化69.词形变化。

70.代词或名词新课标卷II 说明文208 中国为保护环境在农作物种植上做了一些变化并得到了世界上的知名人士的认可提示词7个61.时态62. 冠词63. 副词64. 非谓语动词65. 连词66. 词性转换67.词性转换68. 时态69. 定语从句70. 省略句新课标卷III 记叙文193 在中非偶遇大猩猩，彼此惊恐的经历提示词7个61.宾语从句62.冠词63.最高级64. 动词65. 非谓语66. 名词67. 动词短语68. 代词69. 时态70. 非谓语2017年新课标卷I 说明文223 低脂肪、低盐的饮食趋势及其对人们健康的影响提示词7个61. 介词62. 名词的数63. 非谓语动词64. 谓语动词65. 冠词66. 比较级67. 主谓一致68. 非谓语动词69. 形容词70. 定语从句新课标卷II 说明文201 世界第一个地铁的形成和发展提示词7个61.名词的数62.介词63.非谓语动词64.冠词65.被动语态66.副词67.代词68. 时态69. 名词70. 形容词新课标卷III 说明文215 Sarah Thomas在学业和诱人的职业面前所做出的选择。

高考英语真题专项汇编卷（2017-2019）：知识点10 语法填空1、阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

There are several reasons why school uniforms are a good idea. First of all, uniforms help the school look smart. The students feel that they belong to a particular group. When every pupil in the school wears the uniform, nobody ①(have) to worry about fashion (时尚). Everybody wears ②same style of clothes. Uniforms can be useful in unexpected ways. A school in Ireland has introduced an interesting new uniform. On the edge of the jacket, there is a piece of cloth ③gives off light in the dark. When the children are walking or ④(cycle) to school on dark mornings, car drivers can ⑤(easy) see them.But can uniforms help improve school standards? The answer ⑥this question is not clear. One study in America found that students’ grades ⑦(improve) a little after the school introduced uniforms. But some students didn't want ⑧(wear) the uniform. Other American studies showed no ⑨(connect) between uniforms and school performance.School uniforms are ⑩(tradition) in Britain, but some schools are starting to get rid of them. Some very good schools don’t have a uniform policy. However, uniforms are stil l popular. Pupils at about 90 percent of British secondary schools wear uniforms.2、阅读下列短文,根据短文内容填空,在未给提示词的空白处仅填写1个适当的单词,在给出提示词的空白处用括号内所给词的正确形式填空。

语法填空2018年Cloze 1 2018全国卷Ⅰ，15分话题：跑步带来多种健康益处词数：174 According to a review of evidence in a medical journal, runners live three years 1 (long) than non-runners. You don’t have to run fast or for long 2 (see) the benefit. You may drink, smoke, be overweight and still reduce your risk of 3 (die) early by running.While running regularly can’t make you live forever, the review says it 4 (be) more effective at lengthening life 5 walking, cycling or swimming. Two of the authors of the review also made a study published in 2014 6 showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all 7 (cause).The best exercise is one that you enjoy and will do. But otherwise... it’s probably running. To avoid knee pain, you can run on soft surfaces, do exercises to 8 (strength) your leg muscles(肌肉），avoid hills and get good running shoes. Running is cheap, easy and it’s always9 (energy). If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give 10 a try.Cloze 2 2018全国卷II，15分话题：调整农业结构词数：184Diets have changed in China — and so too has its top crop. Since 2011, the country1 (grow) more corn than rice. Corn production has jumped nearly 125 percent over2 past 25 years, while rice has increased only 7 percent. A taste for meat is3 (actual) behind the change: An important part of its corn is used to feed chickens, pigs, and cattle. Another reason for corn’s r ise: The government encourages farmers to grow corn instead of rice4 (improve) water quality. Corn uses less water 5rice and creates less fertilizer(化肥) runoff. This switch has decreased 6 (pollute) in the country’s major lakes and reservoirs and m ade drinking water safer for people. According to the World Bank, China accounts for about 30 percent of total 7 (globe) fertilizer consumption. The Chinese Ministry of Agriculture finds that between 2005 —when the government 8 (start) a soil-testing program 9 gives specific fertilizer recommendations to farmers —and 2011, fertilizer use dropped by 7.7 million tons. That prevented the emission(排放) of 51.8 million tons of carbon dioxide. China’s approach to protecting its environment while10 (feed) its citizens "offers useful lessons for agriculture and food policymakers worldwide," says the bank’s Juergen Voegele.Cloze 3 2018全国卷III，15分话题：邂逅大猩猩词数：184I’m not sure 1 is more frightened, me or the female gorilla(大猩猩) that suddenly appe ars out of nowhere. I’m walking on a path in the forest in the Central African Republic. Unexpectedly, I’m face-to-face with the gorilla, who begins screaming at 2 top of her lungs. That makes her baby scream, and then a 400-pound male appears. He screams the 3 (loud) of all. The noise shakes the trees as the male beats his chest and charges toward me. I quickly lower myself, ducking my head to avoid 4 (look) directly into his eyes so he doesn’t feel 5 (challenge).、My name is Mireya Mayor. I’m a 6 (science)who studies animals such as apes and monkeys. I was searching 7 these three western lowland gorillas I’d been observing. No one had seen them for hours, and my colleagues and I were worried. When the gorillas and I frightened each other, I was just glad to find 8 (they) alive. True to a gorilla’s unaggressive nature, the huge animal 9 (mean) me no real harm. He was just saying: "I’m king of this forest, and here is your reminder!" Once his message was delivered, he allowed me 10 (stay) and watch.Cloze 4 2018浙江，15分话题：享受做饭的乐趣词数：191Few people I know seem to have much desire or time to cook. Making Chinese 1（dish) is seen as especially troublesome. Many westerners 2 come to China cook much less than in their own countries once they realize how cheap 3 can be to eat out. I still remember 4 (visit) a friend who’d lived here for five years and I 5 （shock) when I learnt she hadn’t cooked once in all that time.While regularly eating out seems to 6 (become)common for many young people in recent years, it’s not without a cost. The obvious one is money; eating out once or twice a week may be 7 (afford) but doing this most days adds up. There could be an even 8 (high) cost on your health. Researchers have found that there is a direct link between the increase in food eaten outside the home and the rise in 9 (weigh) problems.If you are not going to suffer this problem, then I suggest that the next time you go to your mum’s home 10 dinner, get a few cooking tips from her. Cooking food can be fun. You might also begin to notice the effects not only on your health but in your pocket.2017年Cloze 1 2017全国卷Ⅰ，15分话题：饮食与健康词数：196阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

2017-2019年高考英语真题语法填空汇编2017年春季高考Section ADirections: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.“Zootopia” Broke Disney RecordsLast weekend,the latest Disney movie, “Zootopia”,broke records.The movie had the largest opening weekend for a Disney animation(动画片).People across the United States bought more than $75 million worth of tickets. “Zootopia” is a city of animals.The movie stars a rabbit police officer and a fox criminal (21)__________ team up to find a missing otter(水濑).He is among several animals that have suddenly disappeared from the city. “Zootopia” (22)__________ (praise) for its sharp humor and strong message since its release.The film explores racism and other issues in its description of relations (23)__________ two kinds of animals in the city.Jared Bush and Phil Johnston wrote “Zootopia”.They told reporteres that it started out as a spy movie (24)__________ (set) in several different contexts.But they changed the story (25)__________ they found the animal world especially interesting.They said to (26)__________ something like this.“What’s this world like?What’s the history of this world?”And then,Bush said,they went to the experts.Not only (27)__________ the writers speak with people who study couture(时装) and group behaviour,but also they talked with animal experts like zookeepers.The creators have noted that the variety of animals was not easy (28)__________ (produce) in drawings.In the movie,64 species live in multiple neighborhoods (29)__________ (represent) different animals’living environments.Disney says “Zootopia” is its (30)__________ (complex) animation yet.The extra effort is certainly paying off at the box office.【答案】21-30：21.who 22.has been praised 23.between 24.set 25.because 26.themselves 27.did28.to produce 29.representing 30.most complex2017年秋季高考Section ADirections:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.In the presence of animalsA professor of public health at UCLA says that pet ownership might provide a new form health care. As far back as the 1790s, the elderly at a senior citizens’home in England 21__________ (encourage) to spend time with farm animals. This would help patients’mental sate more than the cruel therapies 22__________ (use) on the mentally ill at the time. In recent years, scientists have finally begun to find proof 23__________ contact with animals can increase a sick person’s chance of survival and has shown 24__________ (lower) heart rate, calm upset children, and get people to start a conversation.Scientists think that animals companionship is beneficial 25__________ animals are accepting and attentive, and they don’t criticize or give orders. Animals have the unique ability to be more social. For example, visitors to nursing homes get more social responses from patients when they come with animal companions.Not only do people seem 26__________ (anxious) when animals are nearby, but they may also live longer. Studies show that a year 27__________ heart surgery, survival rates for heart patients were higher for those with pets in their homes than those without pets. Elderly people with pets make fewer trips to doctors than those without animal companions, possibly because animals relieve loneliness. Staying with animals is believed to create a peaceful state of mind, 28__________ (result) in a favorable environment for everyone.Research confirms that the findings concerning senior citizens can be applied to restless children. They are more easy-going when there are animals around, with 29__________ company they tend to calm down more easily. They involve 30__________ in playing with animals and the presence of animals conforms them greatly.【答案】21-30：21. was encouraged 22. used 23. that 24. to lower 25. because26. less anxious 27. after 28. resulting 29. whose 30. themselves2018年春季高考Section ADirections:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.My Kid-Free LifeI had expected to have more free time after my sons,Evan and Alex,each left for college,and I do.The kitchen calendar looks spare.Rarely (21)__________ I need to prepare family dinner every day.There is a lot (22)__________ (little) laundry.When the boys were infants,I wondered how I (23)__________ (spend) all the hours before they were born.(24)__________ __________ I have those hours back,I can focus on my own needs.I had also expected to worry about them when they were away.And I do.Did they get their flu shots(流感疫苗注射)?Will they remember the talks about “good choices”?On the other hand,the worry is mixed with relief.I have seen (25)__________ vigorously they grow without me.Do I missed them?Yes.Both more and less than I’d guessed.Do I feel united for having lost my primary role in life?No,because over the year,I took great pride (26)__________ the fact that my identity was not dependent on theirs.But,surprisingly,yes.(27)__________ (be) a different kind of mother defines me now.The missing comes at unexpected moments:seeing the school bus drive by,starting to put too many plates on the table...When they have doubts about friendships or job prospects,I can only say, “I’m sure you will figure it out.”And yet,the spaces (28)__________ (empty) by loss are more than filled by what I’ve found.I now have the chance (29)__________ (see) them as the whole world does but also like no one else ever will.As adults I happened to help create.The rooms (30)__________ the boys used to live look vacant.I feel sadness but also joy.I knew they would leave,but they will find their way back.My home is empty.But overflowing.【答案】21-30：21.do 22.less 23.had spent 24.Now that 25.how 26.in 27.To be/Being 28.emptied 29.to see 30.where 2018年秋季高考Section ADirections:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.A comprehensive study of 4,500 children conducted by the National Institutes of Health in 2018 shows that children who spent more than seven hours a day staring at screens showed evidence of premature thinning of their brain’s cortex—the outer layer that processes sensory information. “We don’t know if it (21)__________ (cause) by the screen time.We don’t know yet if it’s a bad thing.It won’t be until we follow them over time (22)__________ we will see if there are outcomes that are associated with the differences that we’re seeing in this single snapshot,”Dr. Gaya Dowling. “What we can say is that this is (23)__________ the brains look like of kids who spend a lot of time on screens.And it’s not just one pattern.”The problem isn’t just screens (24)__________,but also the way screens tempt kids (and adults) away from something far more important:physical activity.More than 23 percent of adults and 80 percent of adolescents don’t get enough physical activity,and according to a 2019 report from the World Health Organization (WTO),these patterns of activity and rest arise (25)__________ habits we develop early in life. “What we really need to do is (26)__________ (bring) back play for children,”says Dr. Juana Willumsen,a WHO specialist in childhood obesity and physical activity,in a statement about new WHO guidelines issued in April 2019. “This is about making the shift from sedentary time to playtime,while (27)__________ (protect) sleep.”Of course,children aren’t completely to blame for their screen addiction.Sometimes,the parents (28)__________ complain about the role of screens in family life are just as guilty of spending too much time in front of one.A 2016 study (29)__________ (conduct) by Common Sense Media found that parents spend up to nine hours a day in front of screens,mostly not for work-related reasons.While 78 percent of parents said they believed they were good screen time role models,the study found a disconnect between their behavior and their perception of their behavior.Parents need to limit screen time for themselves and especially for their kids—(30)__________ it means playing the bad guy.Our mental and physical health depends on it.【答案】21-30：21.is being caused 22.that 23.what 24.themselves 25.from 26.bring27.protecting 28.that/who 29.conducted 30.even if/though2019年春季高考Section ADirections:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Start With the End and Work BackwardsWhen Jason Hoelscher was an undergraduate of fine art studies, there weren’t any professional development classes. So ambition and the timely realization (21)_________he would have to determine “what’s next”on his own urged Jason to engage his future self to find direction. It was 1996,and he was finishing his BFA(Bachelor ofFine Art) in Denver. He was faced with the choice of sitting back to wait for something (22)__________(happen),or pursuing a path into the unknown. He chose the latter.Jason set up a plan that in five years he (23)__________(show) his work in the top gallery in that area of the country. This five-year goal gave him a starting point (24)__________ which to work backwards.By setting the goal, all of Jason’s efforts (25)__________(point) in the same direction. He showed up at different art show openings, and researched as best he could to make (26)__________ familiar with the market environment. As a result of showing up, Jason took opportunities (27)__________ got him closer to his goal. He sent work to a student show and was accepted by Robin Rule, the owner of Rule Gallery.(28)__________(inspire),Jason spent the next month making new work.In April of 1997,Jason went back to Rule Gallery with his new work.(29)__________ scared to death, he looked confident at the gallery meeting. When he left, he left as the newest addition to the Rule Gallery roster (花名册),He had his first exhibition there one year later.Jason could have stopped with the show selection, but what he really wanted was gallery representation. He struck while the iron was hot, and in (30)__________(do) so, shortened his five-year plan into a year-and-a-half.【答案】21-30：21.that 22.to happen 23.would show/would be showing/would have shown24.from/on/at/after 25.had been pointed/had pointed/were pointing/pointed/were pointed26.himself 27.which/that 28.Inspired/Having been inspired/Being inspired29.Though/Although/While/Not 30.doing2019年秋季高考Section ADirections:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Millions of Baby Olive Ridley Turtles Emerge in OrissaNature is full of wonders.In (21)__________ is one of the most breathtaking sights in nature,millions of baby Ridley turtles broke out of their eggshells under the sand at one of their mass nesting grounds in coastal Orissa.The baby turtles started their journey towards the Bay of Bengal (22)__________ __________ __________ they emerged from their nest in the southern district of Ganjam,about 175 km from Bhubaneshwar.Orissa is the home to three mass nesting sites of the Oliver turtles,a species (23)__________ (threaten) with extinction,and one of the sites,Gahirmatha,(24)__________ around 70 to 80 million turtles lay eggs on the beach every year,is considered one of the world’s largest nesting sites.The female turtles drag (25)__________ up the beach from the sea,dig a nest,lay at least one hundred eggs,cover and conceal their eggs and nest,and then return to the sea.The females never visit the nest again to take care of the eggs that (26)__________ (deposit) in the warm sand.The baby turtles emerge from the eggs after 45-60 days,then the babies grow without their mother,which is a rare phenomenon in nature.Interestingly,it is on the same beach where they were born (27)__________ the females lay their eggs.In the recent years,sea erosion has led to many turtles’ next (28)__________ (damage) or destroyed.Also,somefierce animals such as dogs and birds (29)__________ (reduce) the number of nesting turtles.And of course man has also had a negative impact (30)__________ using engine-powered fishing boats near the turtles’nesting grounds.【答案】21-30：21.what 22.as soon as(the moment/instant/minute when or so/as long as) 23.threatened24.where 25.themselves 26.were deposited 27.that 28.being damaged29.have reduced 30.by。

2017-2019高考英语真题分类解----定语从句一、2019年高考真题1.【2019·江苏卷·单项填空】21.We have entered into an age _______ dreams have the best chance of coming true.A. whichB. whatC. whenD. that【答案】C【解析】考查定语从句。

句意：我们已经进入到了一个时代，在这个时代梦想实现的机会最大。

句中先行词为an age（一个时代），且先行词在从句中做时间状语，所以关系词用when。

故选C。

2.【2019·天津卷·单项填空】11.Their child is at the stage__________ she can say individual words but not full sentences.A. whyB. whereC. whichD. what【答案】B【解析】考查定语从句。

句意：他们的孩子正处于能说单个单词而不能说完整句子的阶段。

句中she can say individual words but not full sentences是一个定语从句，先行词是the stage，关系词在定语从句中作地点状语，用关系副词where，故选B。

3.【2019·新课标I卷·短文改错】One afternoon where I was in primary school, I was walking by the school playground.【答案】One afternoon wherewhenI was in primary school, I was walking by the school playground.【解析】考查定语从句。

先行词one afternoon表示时间在定语从句中作状语，所以关系词使用when。

2019年高考英语真题和模拟题分项汇编专题08 语法填空一、2019年高考真题I.记叙文1. 【2019·全国卷I】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88°,there is evidence ___61___ they range all the way across the Arctic, and as far south as James Bay in Canada. It is difficult to figure out a global population of polar bears as much of the range has been ___62___ (poor) studied; however, biologists calculate that there are about 20,000-25,000 polar bears worldwide.Modem methods ___63___ tracking polar bear populations have been employed only since the mid-1980s, and are expensive ___64___ (perform) consistently over a large area. In recent years some Inuit people in Nunayut ___65___ (report) increases in bear sightings around human settlements, leading to a ___66___ (believe) that populations are increasing. Scientists have responded by ___67___ (note) that hungry bears may be congregating(聚集) around human settlements, leading to the illusion(错觉) that populations are ___68___ (high) than they actually are. Of ___69___ nineteen recognized polar bear subpopulations, three are declining, six ___70___ (be) stable, one is increasing, and nine lack enough data.【语篇解读】本文为科普文类说明文，介绍了北极熊的生存现状。