1、单元加餐练.完形填空Dear Mr Jones，I expect you may be slightly surprised to receive a letter from someone living as near as your nextdoor neighbor, but I have to raise a subject so that it will be easier for me to discuss in writing. You may have noticed that I have a _1_of apple trees running alongside the f
2、ence that _2_our two gardens. You may also have taken _3_in the frequent sight of your two children _4_on your lawn directly by the fence.And you may also have _5_that my apple trees, so to speak, bend over the fence and seem to _6_your children with interest.It is only natural that your children sh
3、ould sometimes seem to return that _7_ . And it is not only natural, _8_ , I acknowledge, quite legal, for them occasionally to show that interest by_9_all the apples that hang over on _10_side of the fence.But to be plain with you, Mr Jones, I am tired _11_seeing your children, day after day, tear
4、the branches off the side of every one of my apple trees, and leave my trees looking _12_a battle had been fought on one side of them. I am, if anything, even more tired of waking up these fine autumn _13_ , to find even the apples on my side of the fence _14_in number. I know this is the work of yo
5、ur children, since last night I was woken at midnight by the _15_they were making _16_ one of my trees, and (as they may have told you) chased them home.While I am on the subject, I am at least grateful to you for keeping your bonfires on the far side of your garden this year. Last year neither I _1
6、7_your children had any apples, because the smoke from your bonfire destroyed all the flowers_18_the apples had time to form. I very much hope that next yearfor the first time since I came to this villageI shall have my apples, and your children _19_have theirs and that the sight of the line of appl
7、e trees will be _20_pride to us both.篇章导读：本文是一篇应用文。作者家的苹果树长到了隔壁邻居家的院子里，邻居家的孩子在摘苹果时把树枝都给扯坏了，他们还在半夜爬到树上偷摘苹果。因此，作者给邻居写了这封信，希望他能约束一下自己的孩子，共同爱护苹果树。1A.line BwireCkindDsort答案：A根据最后一段最后一句中的“the line of apple trees”可知，“我”沿着篱笆种了一行苹果树。line意为“排列，行”，符合语境。故答案选A。2A.dividesBparts Cdeparts Dseparates答案：D此处指篱笆把“我们”两家
8、的花园隔开。divide通常指把整体分成若干部分，其后接介词into。separate指把原来各自独立但混在一起的东西分隔开来，其后常接介词from。故答案选D。3A.partBdelight Cpride Dplace答案：B看见自己的孩子坐在草坪上，家长应会很高兴。take delight in是固定短语，意为“以为乐”，符合语境。故答案选B。4A.seatingBsatCsittingDseat答案：C根据所给选项可知，此处意为“坐在草坪上”，two children与sit之间为逻辑上的主谓关系，应用其现在分词形式作宾语补足语，故C项正确。5A.watched BnoticedCsee
9、nDlooked答案：B根据语境可知，此处指或许你也注意到了“我”的苹果树越过了篱笆。notice意为“注意到”，符合语境。故答案选B。6A.look down atBlook down uponClook up toDlook up at答案：A根据对本句的理解可知，这里运用了拟人的手法，指苹果树越过了篱笆，饶有兴趣地俯视着你的孩子们。look down at意为“低头看，俯视”，符合语境。故答案选A。7A.profitBgood Cinterest Dtaste答案：C根据上文中的“with interest”可知，此处指你的孩子有时似乎会回应苹果树对他们的兴趣，这是很自然的。此处是偷摘苹
10、果的委婉说法。interest意为“兴趣”，符合语境。故答案选C。8A.just BevenCand Dbut答案：D此处构成固定搭配not only . but (also) .，意为“不仅而且”。故答案选D。9A.pickingBtaking Ceating Dhaving答案：A根据后面的宾语“all the apples that hang over on _10_ side of the fence”可知，此处是“摘苹果”的意思。pick意为“采，摘”，符合语境。故答案选A。10A.ourBhisCyourDtheir答案：C根据常识可知，邻居家孩子摘的自然是越过篱笆伸到他们家花园里
11、的苹果枝上的苹果。本文是一封信，应用第二人称称呼邻居。故答案选C。11A.fromBofCfor Dwith答案：B根据语境可知，此处指“我”厌烦了日复一日地看见你的孩子将树枝从苹果树上扯下来。此处是介词用于固定结构中，即be tired of doing sth.，意为“厌烦，厌倦做某事”。故答案选B。12A.even ifBeven though Cin caseDas if答案：D根据语境可知，孩子们将树枝扯断，使树看上去就像经历过战争一般。as if意为“似乎，好像”，符合语境。故答案选D。13A.mornings Bafternoons CeveningsDnights答案：A根据句
12、中的关键词“waking up”可知，此处应指早晨醒来。故答案选A。14A.a little larger Bmuch largerCmuch smaller Dmuch fewer答案：C根据下文描述的邻居的孩子半夜爬到树上摘苹果可知，连“我”这边的苹果也少了很多，排除A、B两项。number与small搭配，不与few搭配。故答案选C。15A.voiceBnoise Cwhisper Dscream答案：B根据上文中的“I was woken”可知，“我”是被孩子们的吵闹声吵醒的。noise意为“噪声，吵闹声”，符合语境。故答案选B。16A.jumpingBbeating Cbiting
13、Dclimbing答案：D根据下文中的“chased them home”可知，应是爬上苹果树摘苹果。climb意为“爬；攀登”，符合语境。故答案选D。17A.norBor CsoDand答案：A此处构成固定用法“neither . nor .”，意为“和都不”。故答案选A。18A.afterBuntil CbeforeDunless答案：C根据语境可知，去年苹果树上没有结出一个苹果，因为在苹果开始生长之前邻居家篝火的烟毁坏了所有的苹果花。before意为“在之前”，符合语境。故答案选C。19A.canBwill Ccould Dwould答案：B根据时间状语“next year”和前一分句中
14、的“shall”可知，此处用一般将来时，故用will。故答案选B。20A.aBanCthe Dno答案：A此处是抽象名词具体化，a pride意为“一件令人骄傲的事”。此处指来年看见一行苹果树会令“我们”都觉得骄傲。故答案选A。.阅读理解ADujiangyan is the oldest manmade water system in the world,anda wonder in thedevelopmentof Chinese science. Built over 2,200 years ago in what is now Sichuan Province in Southwest
15、China,this amazing engineering achievement is still used today to irrigate over 6,000 square kilometres of farmland, take away floodwater and provide water for 50 cities in the province.In ancient times, the region in which Dujiangyan now stands suffered from regular floods caused by overflow from t
16、he Minjiang River. To help the victims of the flooding, Li Bing, the regions governor, together with his son, decided to find a solution. They studied the problem and discovered that the river most often overflowed when winter snow atthe top of the nearby Mount Yulei began to melt as the weather war
17、med.The simplest fix was to build a dam, but this would have ruined the Minjiang River. So instead Li designed a series of channels built at different levels along Mount Yulei that would take away the floodwater while leaving the river flowing naturally. Better still, the extra water could be direct
18、ed to the dry Chengdu Plain, making it suitable for farming. Cutting the channels through the hard rock of Mount Yulei was a remarkable accomplishment as it was done long before the invention of gunpowder and explosives. Li Bing found another solution. He used a combination of fire and water to heat
19、 and cool the rocks until they cracked and could be removed. After eight years of work, the 20metrewide canals had been carved through the mountain.Once the system was finished, no more floods occurred and the people were able to live peacefully and affluently. Today, Dujiangyan is admired by scient
20、ists from around the world because of one feature. Unlike modern dams where the water is blocked with a huge wall, Dujiangyan still lets water flow through the Minjiang River naturally, enabling ecosystems and fish populations to exist in harmony.篇章导读：本文是一篇说明文。全文简述了都江堰水利工程的特点及其重要价值。1What are the ben
21、efits of Dujiangyan according to the first paragraph?AReducing flooding and watering farmland.BProtecting the mountain and reducing flooding.CWatering farmland and improving water quality.DDrying the river and supplying cities with water.答案：A细节理解题。根据第一段第二句可知，都江堰水利工程带来的益处是灌溉、防洪和提供用水。故选A。2What was the
22、 main cause of the Minjiang Rivers flooding?AHeavy rains. BMelting snow.CLow river banks. DSteep mountains.答案：B细节理解题。根据第二段最后一句可知，岷江洪水泛滥主要是由山上的积雪融化造成的。故选B。3How was Li Bing able to break through the rocks of Mount Yulei?ABy using gunpowder.BBy flooding the rocks with water.CBy applying a heating and c
23、ooling technique.DBy breaking the rocks with hammers and spades.答案：C细节理解题。根据第四段第三句“He used a combination of fire and water to heat and cool the rocks until they cracked and could be removed.”可知，他是通过运用加热和冷却的技术来解决这一难题的。故选C。4Why is Dujiangyan greatly admired by scientists today?AIt preserves much of th
24、e natural river life.BIt took very little time to complete the project.CThe building techniques used were very modern.DIt has raised the living standards of the local people.答案：A细节理解题。根据最后一段最后一句可知，这是因为都江堰水利工程使河流的生态系统和鱼类和谐相处。故选A。B(2017全国卷)When a leafy plant is under attack, it doesnt sit quietly. Bac
25、k in 1983, two scientists, Jack Schultz and Ian Baldwin, reported that young maple trees getting bitten by insects send out a particular smell that neighboring plants can get. These chemicals come from the injured parts of the plant and seem to be an alarm. What the plants pump through the air is a
26、mixture of chemicals known as volatile organic compounds，VOCs for short.Scientists have found that all kinds of plants give out VOCs when being attacked. Its a plants way of crying out. But is anyone listening？Apparently. Because we can watch the neighbors react.Some plants pump out smelly chemicals
27、 to keep insects away. But others do double duty. They pump out perfumes designed to attract different insects who are natural enemies to the attackers. Once they arrive, the_tables_are_turned. The attacker who was lunching now becomes lunch.In study after study, it appears that these chemical conve
28、rsations help the neighbors. The damage is usually more serious on the first plant, but the neighbors, relatively speaking, stay safer because they heard the alarm and knew what to do.Does this mean that plants talk to each other? Scientists dont know. Maybe the first plant just made a cry of pain o
29、r was sending a message to its own branches, and so, in effect, was talking to itself. Perhaps the neighbors just happened to “overhear” the cry. So information was exchanged, but it wasnt a true, intentional back and forth.Charles Darwin, over 150 years ago, imagined a world far busier, noisier and
30、 more intimate (亲密的) than the world we can see and hear. Our senses are weak. Theres a whole lot going on.篇章导读：本文是一篇科普说明文。文章主要介绍了叶类植物受到袭击时，会发出一种有机化合物(VOCs)来保护自己或通过化学物质与周围的植物进行交流。5What does a plant do when it is under attack?AIt makes noises.BIt gets help from other plants.CIt stands quietly.DIt send
31、s out certain chemicals.答案：D细节理解题。根据第一段中的“ . reported that young maple trees getting bitten by insects send out a particular smell that neighboring plants can get. .”可知，植物受到攻击时会释放出一种特殊的气味，而这种特殊的气味就是某些化学物质。故选D。6What does the author mean by “the tables are turned” in Paragraph 3?AThe attackers get att
32、acked.BThe insects gather under the table.CThe plants get ready to fight back.DThe perfumes attract natural enemies.答案：A句意理解题。根据画线部分后的“The attacker who was lunching now becomes lunch.”可知，画线部分的意思是袭击者受到了它的天敌的袭击。故选A。7Scientists find from their studies that plants can _ .Apredict natural disastersBprote
33、ct themselves against insectsCtalk to one another intentionallyDhelp their neighbors when necessary答案：B推理判断题。根据第三段中的“Some plants pump out smelly chemicals to keep insects away.”和“They pump out perfumes designed to attract different insects who are natural enemies to the attackers. . now becomes lunc
34、h.”可知，植物能保护自己免受昆虫的伤害。故选B。8What can we infer from the last paragraph?AThe world is changing faster than ever.BPeople have stronger senses than before.CThe world is more complex than it seems.DPeople in Darwins time were more imaginative.答案：C推理判断题。根据最后一段可知，达尔文设想了一个远比现实世界更繁忙、更喧嚣和更亲密的世界，而我们的感官却非常弱，植物世界比
35、它表面所展现的更复杂。由此可知，(自然)世界似乎比它看上去的样子更复杂。故选C。.短文改错Last summer, I got a parttime job as a waiter. I worked hard and very helpful. Everyone in a restaurant including some regular customer liked me. One day, a foreign couple in their fifties entered into the restaurant. I was happy to have a chance to pract
36、ice their spoken English. I went up to greet them warm. After I took their order, I told them their food will be served quickly because we Chinese respect the elderly. After heard my words, a look of displeasure appeared on the wifes face. Seeing my confusing look, her husband explained to me the We
37、sterners disliked the description “old”. I apologized to them but realized the importance of knowing cultural differences.答案：Last summer, I got a parttime job as a waiter. I worked hard and very helpful. Everyone in restaurant including some regular liked me. One day, a foreign couple in their fifti
38、es entered the restaurant. I was happy to have a chance to practice spoken English. I went up to greet them . After I took their order, I told them their food be served quickly because we Chinese respect the elderly. After my words, a look of displeasure appeared on the wifes face. Seeing my look, h
39、er husband explained to me the Westerners disliked the description “old”. I apologized to them realized the importance of knowing cultural differences.1very前加was考查谓语动词。helpful “有帮助的”，and连接两个并列的谓语，根据and前的worked可知，应在very前加was。2athe考查冠词。前面提到自己做服务员， 所以restaurant特指自己工作的那家餐馆，其前应用定冠词the。故将a改为the。3customerc
40、ustomers考查名词的复数。customer “顾客”，为可数名词，其前有some修饰，因此应用复数形式。故将customer改为customers。4去掉into考查动词的用法。enter意为“进入”时为及物动词，不与into连用。故将into去掉。5theirmy考查代词。主语是I，此处指“我很高兴有机会练习一下我的英语口语”。故将their改为my。6warmwarmly考查副词。修饰动词greet应用副词。故将warm改为warmly。7willwould考查情态动词。根据主句谓语动词told可知，从句应用一般过去时。故将will改为would。8heardhearing考查非谓语动词。after为介词，其后应接名词、代词、动名词作宾语。故将heard改为hearing。9confusingconfused考查形容词。此处描述作者脸上“困惑的表情”，应用confused，意为“感到困惑的”。故将confusing改为confused。10butand考查连词。realized和前面的apologized是并列谓语，在逻辑上是顺承关系，应用连词and连接。故将but改为and。