1、阅读强化训练(十四)学生用书P170(单独成册)(建议用时：25分钟) 阅读理解The science of happiness has turned up evidence that food can make you happy. However, a lack of certain foods or at least some of their essential ingredients can actually make you sad.A fatty acid called docosahexaenoic acid(DHA)is the most plentiful fat foun
2、d in the brain.Its an essential ingredient for brain structure. Its also easy to get; two major sources of DHA are fish and shellfish. A study by the National Institutes of Health(NIH)uncovered a link between lack of DHA and an increase in the prevalence(患病率) of depression in the United States.Other
3、 studies support the link the NIH found. One study turned up the fact that North American and European countries that dont eat a lot of fish have 10 times the prevalence of depression in their populations than does Taiwan, where fish is a main course of the popular diet.Strangely, while some foods h
4、ave been shown to improve mood in the human brain, researchers have found that putting a limit on food intake can have an even more obvious effect on happiness. A hormone called ghrelin within the stomach heads over to the brain and tells it that its time to eat. When ghrelin is produced, you feel h
5、ungry. After you take food into the body, ghrelin production stops. When you dont eat, however, ghrelin production continues and the hormone builds up in the brain. While the increased ghrelin will make your hunger last longer, researchers have found that the hormone also acts as a natural antidepre
6、ssant(抗抑郁剂)Whether its psychological or physiological, its clear that foods have a powerful effect on our moods. It would appear that eating only nutrientpacked(富含营养的) foods that affect brain chemistry might be the best way to achieve happiness. But the occasional indulgence(放纵) should make you just
7、 as happy. Perhaps a healthy balance of nutritious foods and snacks can help keep the balance in a persons mood best of all. 【解题导语】本文是一篇说明文。让我们一起“吃”出快乐来！科学研究表明，饮食与人的情绪和心理有非常密切的关系。1What can we infer from the NIHs finding?AFish is rich in DHA.BChildren who often eat fish tend to be smarter.CEnough int
8、ake of DHA helps prevent depression.DThe number of Americans with depression is rising rapidly.C解析：推理判断题。由第二段可知，NIH的一项研究发现，DHA的不足与美国忧郁症的发病率上升之间存在联系，再结合第三段的支撑例证可推知：摄入充足的DHA有助于预防忧郁症。2What will happen if we limit food intake for a long time?AThe feeling of hunger disappears.BWe are likely to feel happy
9、.CGhrelin production stops.DUnhappiness will appear.B解析：推理判断题。由第四段第一句可知，尽管一些食物能够改善情绪，但是研究者发现控制食量对快乐的影响更大。结合本段最后一句While the increased ghrelin will make your hunger last longer, researchers have found that the hormone also acts as a natural antidepressant(抗抑郁剂). 可推知，长期控制食量可能会让我们快乐。3According to the au
10、thor, whats the best eating style to keep happy?AEating DHArich foods.BIncluding fish in your daily meals.CConsuming nutrientpacked foods each day.DCombining nutritious foods and favorite snacks.D解析：细节理解题。由最后一段可知，a healthy balance of nutritious foods and snacks最有助于人们保持情绪的平衡。4Where does the text prob
11、ably come from?AA science magazine.BA business report.CA research plan.DA news story.A解析：文章出处题。本文以研究结果为证，介绍了饮食对人的情绪的影响，属于健康类话题，最有可能出现在科学杂志上。 完形填空Two weeks before Christmas, they were walking down the street, sliding and laughing on some ice._1_ they shared what they hoped to get from Christmas.They
12、stopped to talk to an old man named Harry，who was on his knees _2_ weeds (杂草) from around a tree.He wore a pair of _3_ gloves.His fingers were sticking out of the ends, blue from the _4_Harry told them he was getting the yard in shape as a Christmas _5_ for his mother, who had died several years bef
13、ore.His eyes were _6_ with tears.“My mother was all I had.She loved her _7_ and trees, so I do this for her every Christmas.”His words _8_ the girls and soon they were down on their knees helping him pull _9_When they were finished, Harry pressed a quarter into each of their hands, “I wish I could _
14、10_ you more, but its all Ive got right now，” he said.The girls had often passed his house, and they _11_ that it had always been in _12_ condition.No decorations to add cheeriness were anywhere in sight.Harry sat by himself behind curtainless windows，looking _13_As they walked on, the _14_ in one l
15、ittle girls hand seemed to burn a hole of guilt.The next day she called her friends and they _15_ to put their quarters in a jar(罐子) marked “Harrys Christmas Present”Then they began to seek out small jobs to _16_ more.Every coin they earned went into the jar.Finally, they had enough to buy new _17_C
16、hristmas Eve found them on Harrys doorstep _18_ carols (颂歌)They presented him with the gloves and a(n) _19_ pumpkin pie a mother had just baked.With _20_ hands he held the gloves to his face and wept.No doubt he once again felt the love of others as the girls reached out to him.【解题导语】本文是一篇记叙文。文章主要讲述
17、了几个女孩攒钱给哈利送圣诞礼物的故事。1A.QuicklyBStrangelyCHappilyDSilentlyC解析：由上文中的laughing可知，圣诞节快来临了，她们“高兴地(Happily)”分享着希望得到的节日礼物。2A.pullingBmovingCcoveringDburningA解析：由该空前的on his knees可知，哈利正跪在那里“拔(pulling)”草。3A.newBperfectCbeautifulDwornD解析：由下文中的His fingers were sticking out of the ends以及女孩们给他买手套可知，哈利戴着一副“破旧的(worn)
18、”手套。4A.timeBcold CanxietyDbeatB解析：由上文中的Christmas、ice和His fingers were sticking out of the ends可知，当时是12月，他的手指伸到了破旧的手套外面，因此被“冻(cold)”得发青。5A.storyBchallengeCgiftDcelebrationC解析：由下文中的I do this for her every Christmas可知，哈利把院子打理好，以此作为给母亲的圣诞节“礼物(gift)”。6A.hungryBcuriousCsleepyDwateryD解析：由with tears可知，他的眼睛是
19、“湿润的(watery)”。7A.yardBpetChouseDpresentA解析：由上文中的getting the yard in shape 可知，哈利的母亲喜爱她的“院子(yard)”和树木。8A.surprisedBtouchedCthreatenedDinspiredB解析：由下文中的they were down on their knees helping him可知，哈利的话“感动了(touched)”女孩们。9A.fruitsBtrees CweedsDflowersC解析：由上文中的.weeds(杂草) from around a tree可知，女孩们帮助哈利拔“草(wee
20、ds)”。10A.thankBteach ChelpDpayD解析：由上文中的pressed a quarter可知，哈利希望自己能多“付(pay)”她们点钱。11A.rememberedBguessedCimaginedDbelievedA解析：因为常常经过这所房子，所以女孩们“记得(remembered)”房子的样子。12A.excellentBpoorCreasonableDnormalB解析：由下文中的No decorations to add cheeriness were anywhere in sight.可知，哈利家的房子状况“较差(poor)”。13A.angryBattra
21、ctiveClonelyDfriendlyC解析：由上文中的Harry sat by himself可知，哈利坐在那里看上去很“孤独(lonely)”。14A.jarBplantsCtearsDquarterD解析：由上文中的Harry pressed a quarter into each of their hands可知，当她们走着的时候，有个女孩拿着的那一枚“25分钱(quarter)”似乎让她感到烫手一样。15A.agreedBhopedCmanagedDattemptedA解析：这个女孩给其他的朋友们打电话，准备帮助哈利，她们都“同意了(agreed)”。16A.supportBea
22、rnCreceiveDcontributeB解析：由上文中的seek out small jobs及下文中的they earned.可知，她们找很多小的工作，目的是为了多“挣钱(earn)”。17A.trousersBglassesCglovesDsocksC解析：由下文中的They presented him with the gloves可知，女孩们攒够了钱，买了新“手套(gloves)”。18A.discussingBsingingCexplainingDcreatingB解析：由该空后的carols(颂歌)可知，圣诞节前夕她们在哈利的家门外为他“唱(singing)”圣诞颂歌。19A.thinBexpensiveCwarmDhardC解析：由下文中的a mother had just baked可知，南瓜派是一位母亲刚刚做的，因此应该是“热的(warm)”。20A.softBdirtyCbleedingDtremblingD解析：由下文中的held the gloves to his face and wept可知，哈利用“颤抖的(trembling)”手接过手套。