2019届高考英语第一轮总复习课时作业检测25
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Ⅰ阅读理解A(2018·宁波高三调研性检测)Golden Gate BridgeLocated in San Francisco, the Golden Gate Bridge started in the year 1933 toconnect the San Francisco Peninsula with Marin County. It was finally thrown open to public in 1937. It cost more than $ 35 million in the construction. Till the year 1957, the Golden Gate Bridge, at a length of 2,737 meters, was the longest suspension bridge in the world.Brooklyn BridgeThe Brooklyn Bridge is located in Brooklyn. It is one of the oldest bridges in the United States, opened in the year 1883. The length of the bridge is 1,825 meters. The bridge has been featured in several Hollywood movies.George Washington BridgeAlso known as the Hudson River Bridge, the George Washington Bridge which connects Fort Lee to Manhattan came into use in 1931 after a construction period of almost 4 years. It is a twolevel suspension bridge.Mackinac BridgeThis is the third biggest suspension bridge in the world at a length of 8,038 meters. The architect of this bridge was Dr. David B. Steinman who directed the construction of the bridge which started in the year 1954.It was opened to the public in 1957. People using this bridge are charged a certain amount of money.Navajo BridgeLocated in Arizona, this bridge crosses the Colorado River and is almost 250 meters long. The construction of this bridge started in the year 1927, ending two years later, costing $390,000. In the 1990s a second bridge was built which was opened to the public in 1995. The first bridge is still used by pedestrians now.【解题导语】本文是一篇说明文,主要介绍了美国五座著名的大桥。
课时练1阅读理解提速练Ⅰ阅读理解A(2018·云南高三调研)For the growing number of Chinese heading west to work and study, there’s plenty they find surprising. Upon arrival in the West, many Chinese find they have to firstly put on the brakes. Li Feng, raised in northern China and now based in England, agrees.“The only thing Chinese people would be shocked by in Britain is how long it takes to do things,”he says.“For instance, in China if you want to open a bank account, you don’t wait and you just do it at the counter.” Out-of-hours and weekend work is standard in China, but in Britain, the weekend is for family and friends.Chen Lei, who left his homeland 12 years ago and is now a lawyer in Belgium says office politics are simpler in Europe, partly because the hierarchy(等级制度) is less rigid than in China, where the boss really is the boss and social class in the office is very obvious and important.As a result, staff in a Chinese company think very carefully about how to present their views and ideas. Employees in the West can share their opinions more freely. In China you should have the wisdom to say something in an appropriate way. But in Europe you can just say what you want.The newest Chinese arrivals have a very different view to previous generations, according to Sharon Jin, who moved to the U.S. 20 years ago and is now an American citizen. “Almost 100% of people of my generation who came to the States want to get a green card,”she says. “But today younger Chinese plan to work for 10 years here and then return to China to buy a house or look a fter their parents.” While a record number of 523,700 students left China to study elsewhere in 2015, roughly 70%-80% of students abroad have been returning in recent years because of the attractive job market at home, according to the Chinese Ministry of Education (CME).【解题导语】以前,中国人去国外都想获得绿卡,而现在他们计划在国外工作十年以后,再回来买房或照顾父母。
语言知识运用(六)完形填空阅读下面短文, 从短文后各题所给的A.B.C和D四个选项中, 选出可以填入空白处的最佳选项。
Hunter Kittle, 24 years old, was driving through California's Mount Baldy, when his night took an unexpected turn.A.h.wa.goin.dow.th.road.hi.ca.turne.upsid.dow.suddenl.an.__1_.directl.7.fee .int..valley.Th.youn.ma.amazingl.__2_.th.fall.bu.h.passe.ou.an.wasn'.full.i.th. clear.Shortl.after.h.__3_.i.hi.broke.ca.wit.a.injure.lung..fractured(骨折的.skul.an..broke.leg.Hi.pai.mus.hav.bee.beyon.__4__.Du.t.th.shap.o.hi.the.dest roye.vehicl.an.hi.__5_.injuries.Hunte.wa.unabl.t.mak.hi.__6_.ou.o.th.vehicle.H. ha.t.dea.wit.hi.pai.alon.__7_.someon.foun.him.The Kittles were also __8__ about where their son could be but as each day passed without any __9__, the situation became worse.Afte.thre.nights..motoris.__10_.an.notice.th.ca.wrec.(残骸.__11_.i.th.valley.Th.ambulanc.wa.calle.__12__.Soon.Hunte.wa.airlifte.t.th.__ 13__.No.Hunte.i.i.hi.hospita.be.an.says.“.wa.s.happy.yo.know.tha..wa.finall.bein.__14__.an.tha..stil.ha.a(n.__15_.lef. t.liv.on..H.goe.o.t.__16__,“I.fact.i.mainl.wa.__17_.ove.matter.M.desir.t.liv.lon.enoug.mad.it.on.wa.o.ano ther..didn'.wan.tha.t.b.m.fina.__18_.i.m.lif.book.”__19__ his determination to live and a kind stranger, Hunter escaped this tragedy and now __20__ a new perspective on life.1.A.slippe.down B.climbe.upC.pulle.ove.D.wandere.around2.A.avoide. B.survivedC.handle.D.experienced3.A.looke.u. B.brok.upC.turne.u.D.wok.upprehensio. B.beliefC.descriptio.D.repair5.A.gradua. B.seriousC.sligh.D.temporary6.A.wa. B.dayC.promis.D.decision7.A.sinc. B.onceC.afte.D.until8.A.craz. B.guiltyC.anxiou.D.doubtful9.A.suspicio. rmationC.instructio.D.prediction10.A.passe.b. B.passe.awayC.passe.of.D.passe.out11.A.deserte. B.lyingC.settlin.D.thrown12.A.suddenl. B.casuallyC.immediatel.D.deliberately13.A.valle. B.homeC.hospita.D.shelter14.A.inspire. B.supportedC.cure.D.saved15.A.chanc. B.demandC.pla.D.aim16.A.advis. B.explainC.war.plain17.A.min. B.healthC.fortun.D.bravery18.A.cove. B.priceC.sentenc.D.chapterpariso.wit. B.O.behal.ofC.Thank.t.D.Excep.for20.A.acknowledge. B.remembersC.donate.D.holds答案与解析【文章大意】本文是一篇记叙文, 主要讲述了24岁的Hunter Kittle跌落山谷, 身受重伤, 最终凭借求生的坚定决心和好心的陌生人的帮助幸免于难的故事。
课时作业25 Unit 5 First aid—、单元扣点训练I .短语填空act as; in place; for a moment; take off; stick to; sit up; be presented with; cut off; apply ...to...; make a difference1 • There is no doubt that this scheme will ________ t o the way I do my job・2.The forest will _________ a defense against desert dust.3 . I didn!t recognize him until he h is sunglasses.4. Before you leave the office, everything should be put ________ .5 • It was so hot that he was sweating a lot and his shirt was ________ his back.6.By the time I got there he was in bed and reading a book.7.Nowadays new technology is beingalmost every industrial process.8 • Basketball Lakers guard Bryant the NBA finals MVP in 2008.9.Please hold yourself still __________while I take your photograph・10.They are threatening to __________ power supplies if their demands are not satisfied ・答案 1 .make a difference 2.act as3.took off4.in place5.sticking to6.sitting up7.applied to8.was presented with 9.for a moment lO.cut offII .完成句子1.Remove clothing _________________ (必要时使用剪刀)unless it is stuck to the burn. (use)答案using scissors if necessary2.She was lying in her front garden (流血不止). (bleed)答案bleeding very heavily3.Before receiving their rewards, they (出席了由首相主持的特殊招待会).(host)答案attended a special reception hosted by the Prime MinisterIII.模仿造句1.It is where you feel cold, heat or pain.[翻译]去把你的大衣取来,它就在你原来放它的地方。
课时作业(十四)[必修模块5Unit 2The environment][限时:30分钟]Ⅰ.语法填空1.First impressions are the most lasting.After all,you never get ________ second chance to make ________ first impression.A.a;the B.the;the C.a;a D.the;a2.The extraordinary success of Dr.Doyle,mainly with his Sherlock Holmes,has ________ the market with detective stories.A.flew B.controlled C.charged D.flooded3.If we don’t sell more goods,we’ll have to cut back ________ production ________10% next year.A.upon;to B.on;by C.of;by D.for;to4.—Have we ________ money?—Yes,________.We’d better get some from the bank near here.A.run out of;we have run it outB.run out of;our money has run outC.run out of;our money has been run outD.run out;our money has been run out.5.The campus shooting spread throughout the county,________to great concern about students' safety at school.A.having led B.ledC.leading D.to lead6.As a result of people’s destroying the forest,a larger ________ of desert ________ covered the earth in recent years.A.number;has B.number;haveC.quantity;has D.quantity;have7.________ everyone knows is ________ the kind girl,for ________ life was once hard,still insists on helping the old men around every day.A.What;/;whom B.What;that;whoseC.It;/;whom D.What;that;whom8.The number of traffic accidents caused by drinking is ________ as the number of those caused by non-drinking driving.A.twice as many B.many as twiceC.as twice large D.twice as large9.________ the right decisions ________ the future is probably the most important thing we’ll ever do in our lives.A.Making;concerned B.Make;concerningC.To make;concerned D.Making;concerning10.As these new products are not selling well,the members of the board have decided to ________ production.A.cut down B.cut down toC.cut down on D.cut off11.The workers are all going out to make the output ________ three times what it was five years ago.A.grow to B.grow upC.grow by D.grow into12.________ was clear to everyone that he couldn’t get full marks if not cheating in the test.A.It B.That C.This D.One13.The boy was having an operation on the stomach,tears ________ down his cheeks quietly.A.flew B.flowing C.flown D.to flow14.—Bad luck.They didn’t offer the job to me.—________You’ve been well prepared for the interview.A.So what? B.What if?C.How come? D.What about?15.Lily’s mobile phone was left in a taxi accidentally,never ________again.A.to find B.to be foundC.finding D.being foundⅡ.完形填空(二)New studies show how food and its production affect the globe and its climate. The process of making a hamburger, for example, requires lots of energy. A cow has to be fed and raised on farmland. And cow waste is a major source of methane(沼气)— 16.________ especially powerful greenhouse gas. The cow has to be killed. The meat has to be processed and shipped, 17.________ takes fuel. Most of the cow won’t even be used for meat people eat. By the time a hamburger finally lands to a dinner plate, 18.________ has made bad effect on the environment.We can reduce the production of global warming gases by eating less beef. Other kinds of meat like pork and chicken do 19.________ harm to the environment—at least in terms of the amount of greenhouse gases released. 20.________ , all kinds of meat are harder 21.________ the planet than vegetables. 22.________ changing our diet to less meat and more vegetables, as it turns 23.________,may do the world some good.Ⅲ.阅读理解Our CommunityOne Tuesday evening in the beginning of the fall 1996 semester (学期) at Shippensburg University, sirens sounded. These sirens were not in celebration; they were a cry to the university that something was wrong. A house, only one block away, was on fire. Nine of the university’s students lived there.From the minute the word got out that help was needed, it seemed like everyone showed up. The victims (受灾者) of the fire were offered endless invitations for housing for the night. The very next day, everyone got_into_gear to do their part in helping them. Flyers(=handbills) were posted with items that were immediately needed, just to get these students through this next coupleof days. Boxes for donations (捐赠品) and money jars were placed in every residence hall (学生宿舍).As a residence director, I went before the students in my hall to ask them to do what they could. I knew that college students don’t have much, but I asked them to do their best: “Every little bit will help.” I really didn’t think they could do much. I was proved wrong.At the hall council meeting the night after the fire, my residents decided to have a wing competition, where each wing of the building would team up to see who could bring in the most donations. I announced that the wing who won would receive a free pizza party.Thursday evening we announced over the PA system that we were beginning the wing competition. Within minutes, the place exploded. The single large box that I had placed in the lobby (大厅) was overflowing. We quickly grabbed more boxes, and we watched in_amazement as they, too, filled to the brim(边;沿). Members of the resident assistant staff and I began to count the items. I was astonished by what I saw, and I was inspired by these kids.When we came to the final tally(得分), the winners turned to me and announced that they would like to donate their winnings as well. They wanted the victims of the fire to have their pizza party.Tears welled up in my eyes. I had watched these students jump to action, work tirelessly and donate all that they could. And then, as if that were not enough, they handed over their reward. I was touched and so very proud of them.24.The writer mainly wanted to________ by the story.A.tell us nine of the college students suffered from a fireB.sing praise of the college students helping the victims selflesslyC.describe how successful the wing competition wasD.express he was deeply moved by the college students’ action25.The phrase “get into gear” in the second paragraph means ________.A.start working B.take measuresC.be ready D.be eager26.At first, the residence director thought ________.A.it was impossible to expect the college students to donate anythingB.it was easy to collect a lot of donations from the college studentsC.the college students would donate something, but not muchD.the college students would donate all they could27.The wing competition was held ________.A.several days after the fireB.the night after the fireC.a week after the fireD.two days after the fire28.The phrase “in amazement” in Paragraph 5 means ________.A.satisfactorily B.excitedlyC.surprisedly D.happilyⅣ.阅读填空阅读短文,根据所读内容在表中的空格处填上适当的单词或短语。
Ⅰ阅读理解(2018·成都高三诊断性检测)Johannes Vermeer is such a quiet and introspective(内省的)artist that it took hundreds of years for anyone to notice he was a genius.A major Vermeer exhibition opens this month at the Louvre in Paris, whose permanent collection includes his great painting of a woman absorbed in close, visually demanding work, The Lacemaker (about 1669-1670). Like other paintings by Vermeer, this image represents modern culture.So attracted are today’s art lovers by Vermeer that it was thought shocking when a recent survey found that 82% of Americans can’t name who painted Girl w ith a Pearl Earring. Well, maybe they don’t go to the movies much.It is not true to say he was forgotten—that would suggest he was famous in his lifetime. He was not. Vermeer was one more painter among the many who worked for money in the Dutch Republic in the 17th century. He was not a star like Rembrandt. He obviously took himself and his art seriously. His self-referential painting The Art of Painting proves that. Even though he worked all his life in Delft, he painted only 35 known works and left his family poor when he died in 1675 at the age of 43.It is fitting that Paris is celebrating Vermeer, because it was the French avantgarde(先锋派) in the 19th century who saved him from being completely forgotten. Compare his painting Woman in Blue Reading a Letter or The Little Street with, say, Edouard Manet’s A Bar at the Folies-Bergère(1882)or Camille Pissarro’s The Boule v ard Montmartre at Night(1897) and it is easy to see why the art of Vermeer found its natural audience in Parisian Bohemia.All these artists are likely to have known about and admired Vermeer due to the efforts of the critic ThoréBürger, a veteran of the 1848 Revolution.Vermeer’s rediscovery is part of the history of modern French art. Vermeer is not only a great artist. He is a great modern artist.【解题导语】本文是一篇说明文,主要介绍了著名画家Johannes Vermeer的生平和他的艺术特点。
必修二Unit 5 高考拆组训练练(一)语言运用组块专练——练准度(限时:25分钟)Ⅰ.完形填空If you're walking through Boston during a downpour, you might see a(n) __1__ appear before your eyes. For nearly a year, Bostonians __2__ the city streets in the rain may have __3__ poems written on the sidewalks.Titled “Raining Poetry,” this __4__ resulted from cooperation between the nonprofit Mass Poetry and the city of Boston. The first poems were installed to __5__ the start of National Poetry Month, with several more __6__ to the city's streets last May 13. These poems cannot be seen during dry, __7__ weather, but appear like magic __8__ raindrops start falling from the sky.The poems were __9__ by Danielle Legros Georges, Boston's poet laureate (桂冠诗人). They are all based on their __10__ to Boston, as well as the general themes of water and rain.“I wanted to draw __11__ from poets influential in the Boston-area literary, educational or cultural fields,”Georges said.The poems were installed by __12__ of the Mayor's Mural Crew,an organization that introduces young artists to the process of __13__ public ing a water-resistant spray (喷剂) and simple cardboard stencils (模板), the poems can be __14__ to the sidewalk in a matter of minutes and should wear away in six to eight weeks.The poems appear throughout the city. __15__ all of the poems __16__ installed are written in English, Sara Siegel, program director for the Mass Poetry, hopes to add __17__ ones in the many languages that are __18__ throughout Boston.“Our hope is in the next two years everyone in the state will meet a poem in their __19__ lives at least once or twice a month,”says Siegel.“This is a fun and __20__ way to bring poetry to the people.”C.beggar D.picture解析:选A根据下文中的“poems written on the sidewalks”可知,如果雨天漫步波士顿街头,你可能会看到一首“诗歌(poem)”出现在眼前。
Module 3 MusicI. 单项填空1.________all her work in the office,Mary went to the cinema with her friends.A.Having finished B.FinishC.To finish D.Finished答案 A [考查非谓语动词。
“完成”这一动作发生在went to the cinema之前,且finish与其逻辑主语Mary之间是主谓关系,故选动词ing形式的完成式。
]2.Salt,when________with water,dissolves quickly,which is a physical reaction.A.mixed B.mixing C.mix D.is mixed答案 A [when mixed with water是when the salt is mixed with water的省略形式。
句意:当盐和水混合的时候,盐会很快融化,这是物理反应。
]3.The theory was so________that few people could understand it at that time.A.complete B.complexC.curious D.content答案 B [考查形容词辨析。
句意:当时那个理论如此复杂,以至于很少有人能理解它。
A项意为“完全的,完整的”;B项意为“复杂的”;C项意为“好奇的”;D项意为“满意的”。
所以选B。
]4.They remarried in 1995 and________again in less than a year.A.kept up B.built upC.joined up D.split up答案 D [句意:他们在1995年复婚,但在不到一年的时间里又分道扬镳了。
keep up“保持”;build up“建立”;join up“连接起来”;split up“分离,解散”。
课时作业(十一)必修3Unit 1 Festivals around the world基础检测Ⅰ.词性转换1.To get the job done,one should be ________(energy) and hard-working.2.My father told me he hadn't much ________(believe) in doctors of traditional Chinese medicine.3.Police and security services would be able to have access to the information after seeking ________ (permit) from the courts.4.They held a party to celebrate their success and the ________(celebrate) lasted about two hours.5.Children in foreign countries seem to be very ________(depend) and it's common that parents and children live separately.Ⅱ.单句填空6.The disease prevented him from remembering things unless he ________(remind) by another.7.In the long run, it's not a question of whether they deserve to ________(forgive).8.________ (obvious) you're worried about something; why not get it off your chest?9.A few days ago we wrote a letter to the local newspaper about our concerns for the worsening environment and now we are looking forward with hope________(hear) from them.10.You never know where happiness will turn ________ next, so grasp every chance around you.Ⅲ.短语填空11.It's a small informal party—you don't have to ________________(打扮).12.He ________________(遵守诺言) and paid me the money he owed me exactly on time.13.Fred got very angry when the other boys____________(开玩笑) him and hid his clothes.14.We're ____________________(盼望看到) the new policy carried out,which has drawn many people's attention.15.In order to get ready for the examination,the students are studying ________________(日日夜夜).Ⅳ.句型训练16.I lay quietly in a small village, listening to the sound of water outside, ________________ my childhood. (remind)我静静地躺在一个小村庄,听着外面的流水声,这使我想起了自己的童年。
17.________________about the city was its traditional culture andmodern architecture. (impress)这个城市给我们印象最深的是它的传统文化和现代建筑。
18.Last week they quarrelled with each other and his words hurt her, ________________to her shortly afterwards.(apologize)上周他们吵了架,他的话伤害了她,之后不久他就为此向她道了歉。
19.________________our parents are proud of every success we have accomplished in the past. (it)很显然,父母对我们过去取得的每一点成绩都感到自豪。
20.I had already turned into the square__________________:“Tee-reee-sa!”(when)就在我拐到广场时我还听到了有人在叫“特——丽——萨”。
能力提升Ⅴ.阅读理解Pancake Day is a special day celebrated in many countries around the world. It is always on a Tuesday in February or March and celebrated in Englishspeaking countries like the UK, Ireland, Australia and Canada. In some countries, like France and the USA, it is called Mardi Gras or Fat Tuesday. In other countries, like Spain, Italy or Brazil, Pancake Day is at the end of Carnival(狂欢节). On this day many people eat pancakes, a thin, flat cake made in a pan.A tradition on Pancake Day in the UK is pancake racing. People runin a race with a pancake in a pan. As they run, they have to toss the pancake (throw the pancake in the air and catch it in the pan) several times. In some races people dress up in fancy clothes. The most famous pancake race takes place in a town called Olney, in the middle of England, which has been celebrating pancake races since 1445.Pancakes are very easy to make. Try our recipe(食谱).What you need: one cup of flour; one cup of milk; one large egg; some salt; some butter or oil; lemon juice; some sugar.Instructions: fill one cup with flour and put it into a bowl. Fill another cup with milk and pour it into the bowl. Crack(敲碎) the egg into the bowl and mix the flour, milk and egg until the mixture is smooth. Put a very small amount of butter or oil in a pan, and when it is hot, put some mixture in the pan and move the pan to make a thin pancake. After one minute hold the pan carefully and throw or toss the pancake in the air to turn it over. Now cook the pancake on the other side.When the pancake is ready, squeeze some lemon juice and put some sugar on it and eat it immediately. If you don't like lemon juice, eat them with jam, chocolate sauce or ice cream. Mmm,delicious!21. Among the following countries, which are mentioned in the passage to have celebrated Pancake Day?A.Ireland, Thailand and the USA.B.Korea, Spain and Canada.C.Japan, Canada and Australia.D.Brazil, Italy and the UK.22. According to the passage, which of the following statements is TRUE?A.None of the people dress up and go to take part in the pancake races.B.In the USA, Olney has been celebrating pancake races for over centuries.C.People are required to throw the pancake in the air and catch it in the pan in the race.D.It is very difficult for people to make a pancake so they can only eat it on Pancake Day.23. What is the RIGHT order of making a pancake?①Put a little butter or oil in a pan.②Pour some mixture in the pan and make a thin pancake.③Mix the flour, milk and egg.④Cook the pancake for one minute and then turn it over.⑤Put one cup of flour, one cup of milk and an egg into the bowl.A.⑤-③-①-②-④B.①-⑤-③-②-④C.①⑤②③④D.⑤③④①②24. Which of the following is the best title of the passage?A.How to make a pancakeB.Pancake DayC.The origin of Pancake DayD.A tradition of Pancake DayⅥ.完形填空Thanksgiving—yesterday and todayBecause Thanksgiving has always been an important part of my life, I sometimes forget that other countries do not recognize the holiday. The reason, of course, is that Thanksgiving was a celebration __25__ by those who came to North America from other lands as a way of showing __26__ for their blessings on this continent.In 1578 the explorer Martin Frobisher was trying to find a northern __27__ to the Pacific Ocean. After __28__ from storms and icebergs, he held a __29__ ceremony in Frobisher Bay to give thanks for his survival. Some believe that this was the first Canadian Thanksgiving Day.The United States uses the harvest celebrations of the Pilgrims which __30__ for several days at Plymouth in Massachusetts in 1621 as the __31__ of Thanksgiving. In more recent times, however, a rather __32__ tradition goes that the President of the United States __33__ a statement and “pardons” the Thanksgiving turkey so that its life is __34__ and it can roam free.Canada celebrates Thanksgiving on the second Monday of October while the United States celebrates on the fourth Thursday of November.__35__ day it is, people have __36__ ways of celebrating the holiday. It may __37__ cooking and eating excellent food such as turkey, fresh vegetables and pumpkin pie. It is a great time for people to get together with friends or family.You probably have developed some __38__ within your own family. Some may be __39__ and involve your ethnic roots while others may be connected with your __40__ beliefs or religious values.It really doesn't matter exactly how you celebrate __41__ you remember that the reason for the holiday is to __42__ on the blessings that you have had and __43__ the day with a grateful heart. You see, the __44__ really says it all.25. A.observed B.followed C.required D.established26.A.satisfaction B.gratitude C.request D.respect27. A.route B.path C.passage D.direction28.A.surviving B.suffering C.travelling D.witnessing29.A.rich B.colourful C.formal D.proper30.sted B.extended C.delayedD.spread31.A.cause B.origin C.form D.ceremony32.A.famous B.particular C.popular D.strange33.A.approves B.discusses C.issues D.publishes34.A.valued B.spared C.respected D.praised35.A.Whichever B.Whatever C.What D.Which36.A.possible B.attractive C.beneficial D.similar37.A.enjoy B.concern C.involve D.connect38.A.traditions B.hobbies C.advantages D.heritage39.A.historical B.technical C.literary D.cultural40.A.political B.spiritual C.economical D.social41.A.as long as B.no matter how C.the first timeD.ever since42.A.base B.rely C.reflect D.call43.A.remember B.approach C.waste D.enjoy44. A.significance B.history C.holiday D.nameⅦ.语法填空阅读下面材料,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。