首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Allergy has become more and more common over the last 30 years. It is a reaction that occurs when the immune system has a strang
Allergy has become more and more common over the last 30 years. It is a reaction that occurs when the immune system has a strang
admin
2019-09-01
38
问题
Allergy has become more and more common over the last 30 years. It is a reaction that occurs when the immune system has a strange and unnecessary reaction to a substance which is normally harmless, such as pollen (花粉)or peanuts. The immune system is there to protect the body against outside attackers, including viruses, bacteria and parasites. To defend your body against an attacker, the immune system remembers these dangerous micro-organisms and attacks them if it meets them again. This work is done by antibodies. The immune system in allergy sufferers makes antibodies against harmless substances, because it mistakenly believes them to be dangerous.
【B1】______ Sometimes people can eat nuts for years and then suddenly become allergic to them. What has happened is that the immune system has now decided the substance is dangerous and has made an allergy antibody. This antibody then attaches itself to cells, which contain histamine (组织胺). When the antibodies meet the allergen the next time, they attempt to destroy it. As they do that, the surface of the cells is broken, and histamine is released. The histamine and other chemicals inflame the tissues. This leads to the symptoms of allergy, such as swelling, rashes, sneezing and breathlessness.
【B2】______Some people are bom with the ability to make lots of allergy antibodies, and they are more likely to develop allergies and allergic disorders such as hay fever and asthma.
【B3】______ We eat more processed foods, with a wide range of additives and colourings; more and more people have central heating and double glazing, making our houses warmer and less draughty.
【B4】______At one time our immune systems were kept busy fighting off disease and trying to win the battle for health, but, antibiotics have reduced the amount of work our immune systems have to do. Now experts think they may direct spare energy to harmless substances. In other words, our immune systems have become oversensitive.
【B5】______ Sufferers may be given medicine to control symptoms, and they may also be offered tests to find out what substances trigger an allergic reaction so that they can avoid contact with these substances in future.
Questions 61-65
Complete the passage with the following sentences. There are two extra sentences that you do not need to use.
A. There may also be a link between allergies and antibiotics.
B. Allergies run in families.
C. A good deal of research is being devoted to finding a cure for allergies.
D. One-third of us are affected by allergy at some point in our lives.
E. Experts believe more people have developed allergies because of changes in our lifestyle which have exposed us to more allergens.
F. In the UK, five per cent of children suffer from food allergy.
G. An allergic reaction may not happen the first time a sufferer meets an allergen.
【B2】
选项
答案
B
解析
该空后面提到“有些人天生就有能力产生大量的过敏抗体,而且他们更有可能患上过敏和过敏性疾病,如花粉症和哮喘”。由此可知,该空应该与过敏是遗传性疾病有关,符合条件的只有B项(过敏是家族遗传的。)
转载请注明原文地址:https://kaotiyun.com/show/CejK777K
本试题收录于:
D类竞赛(专科)题库大学生英语竞赛(NECCS)分类
0
D类竞赛(专科)
大学生英语竞赛(NECCS)
相关试题推荐
A.equipmentB.maintainC.forexampleD.contactE.contrastF.gainedG.natural
MotherRigbycoulddoanything.Shewasawitch,awomanwithstrangepowers.Shecouldmakewaterrunuphill,orchangeabeaut
Women’smindsworkdifferentlyfrommen’s.Atleast,thatiswhatmostmenareconvincedof.Psychologistsviewthesubjecteith
(1)Theworldisgoingthroughthebiggestwaveofmergersandacquisitionseverwitnessed.TheprocesssweepsfromhyperactiveA
A、Shealwaysforgetstoturnitoff.B、Shehastomakebusinesscallsatnight.C、Shedoesn’twanttomissanyphonecalls.D、Sh
IsraelandHamashadreachedadealonextendingthe________ceasefirebyanextra24hoursuntilTuesdayatmidnight.
Inthesecircumstances,itisthemanagerswhocome________best.
A、Itneverdonatesmoneytothesociety.B、Ithasgotabusinessmodel.C、Itsmanagementisalwayscoldandindifferent.D、Itwo
Insomecases,yourinstructormaytellyouthetopics________ormaygiveyouachoiceoftopicstowriteabout.
To;Roberts.hifi.co.ukFrom;Dave@electricalsupplies.comWearesorrythatourcomputerorderingsystembroke【16】______la
随机试题
以非结合胆红素增高为主的黄疸见于
Thewatercompanyisobligedtomaintainasupplyofwholesomewater.
A.太渊 B.鱼际 C.尺泽 D.孔最 E.中府治疗痔血,宜选的穴位是
证券公司申请次级债务展期,应当提交()。Ⅰ.申请书Ⅱ.相关董事会决议Ⅲ.债务资金的用途说明Ⅳ.证券公司目前的风险控制指标情况及相关测算报告
最早在《新青年》上提倡以白话文代替文言文,成为文学革命先声的是()。
试述人民币的升、贬值对我国国际收支的影响。
ManyliterarydetectiveshaveporedoveragreatpuzzleconcerningthewriterMarcelProust:whathappenedin1909?HowdidCont
在当前目录下有数据表文件“XS.dbf”,执行下列SQL语句后( )。SELECT*FROMXSINTOCURSORXSORDERBY学号
与十进制数245等值的二进制数是()。
A、Thelocalgovernments.B、Theirowners’families.C、Advertisements.D、Theaudience.C细节题.文中提示电视台、报纸、杂志、电台等传媒是私有的,然后用一问一答给出此题的正解
最新回复
(
0
)