大学英语3期末考试复习题

第一篇：大学英语3期末考试复习题

大学英语3词汇选择练习题

第一单元选择题

1.It __________that the necklace was made of glass.A.turned out

2.___________, he can finish the work in a couple of weeks.C.Given good health

3.___________ to speak at the meeting, I couldn’t very well refuse.D.Called on 4.The poor police had never __________ of winning.C.stood a chance

5.If our neighbor continues to refuse to keep his dog under control, we have to take him to ___________.D.court 6.I found a couple of shoes under the bed but they don’t make ___________.B.a pair

7.In the past few years my aunt ___________ enough money to buy a house.A.has saved up 8.Our train is __________ in Beijing at 9 a.m.B.due

9.A few workers were promoted, but meanwhile hundreds of workers were ___.C.dismissed

10.___________ I thought he was joking, but then I realized he was serious.C.At first

11.He tried in vain to _________ the students __________ their professors.A.turn…against

12.The police _________ the driver with drunken driving.B.charged

13.The lady was expecting a baby in a__________ of months.B.couple

14.The sudden snowstorm during the night _________ my decision not to leave.D.confirmed 15.Just ________ your time and tell me clearly what happened at the meeting yesterday.C.take 第三单元选择题

1._________ because I was tired of learning.D.I didn’t leave college

2.She took detailed __________ of what the teachers had discussed at the meeting.A.notes

3.He __________ late writing his term paper.D.stayed up 4.Medical scientists __________ finding a cure for cancer since 1960s.C.have been working on

5.You __________ an important detail in your report of the accident.C.left out

6.I teach because teaching is a profession _________ change.B.built on

7.After running to the bus-stop, I sat down to __________.C.catch my breath

8.She wrote articles and __________ to the Evening Paper.B.sent them off

9.Many young girls like to __________ for recording their private thoughts and feelings.A.keep a diary

10.Tom started as an engineering student, but he __________ English because he liked it.D.switched to 11.I’m _________ that he is innocent in the whole affair.D.convinced 12.I prefer to work in an ______ environment where there are good libraries and cultural facilities.A.urban

13.The statement about the mad cow disease constituted a direct ___ to the British government.C.challenge 14.He was ___________ by illness to drop out of school.C.compelled 15.Jeanne has decided on law as her_.She wantsto become acivil rights lawyerand help the poor.C.profession 第五单元选择题

1.It was not long ___ the news spread and people from all over the country came to visit the village.A.before 2.—I saw Alice in tears yesterday.What happened to her?

—Nothing important.__________ a lit cigarette burned a hole in her new skirt.B.Just that

3.After hearing the news, I could not ____ my work that whole afternoon.C.set my mind on

4.You’ll ___________ to the job after you have been here a week or two.C.catch on 5.The police warned people to be ____ for pickpockets during the Christmas rush.D.on guard 6.She had had no training, but that ___________.A.didn’t stand in her way

7.While my wife and my children were away for the long weekend, ___.C.I had the entire house to myself

8.All our supply of food has __________.C.run out 9.The children _________ in their father’s shop when things are busy.D.help out 10.In the West, people often _____ for mail-order goods, which can

save a lot of time.D.send away 11.___ teaching in the school, Jane gives piano lessons to some children at home.B.In addition to 12.His excellent educational background _________ him for the job.A.qualifies

13.When she learned that her son was killed in battle, the Mexican woman

_ her tears with much difficulty.A.held back

14.If you think you can do the job, don’t hesitate, just __________.C.go ahead

15.It was under __________ that he agreed to resign from the committee.B.pressure

16.Mr.Tyler used to eat with a napkin __________ under his chin.D.tucked 17.The students experience severe __________ as final exams draw near.C.tension 18.I little understood the pressure __________ her.A.on

19.He ___________ that half an hour would be enough for him to get to the station, but he simply forgot that it was the rush hour.B.assumed

20.The police warned the children not to __________ the madman.A.approach

第六单元选择题

1.I knocked several times __________ an old man answered the door.D.before 2.The medicine is __________ in dealing with cancer.B.of little use

3.He was so _________ from things around him that I wondered whether he did listen to what I said just now.B.detached

4.Mrs.Smith went on a diet and in three months ___________ her weight to

pounds.C.brought down

5.What shall I do to ________ this _________ getting dirty?B.keep…from

6.I would _________ play tennis than football.C.rather

7.They waved to one another till the train was __________.C.out of sight

8.I told the boy to __________.C.take it easy

9.Relax a bit.Don’t hold tight _________ yourself like that.B.onto

10.Paul followed the doctor’s __________ as to when to give his son medicines.D.instruction 11.My relatives are ___________ all over the country.A.scattered

12.Jane is __________ with cold so that her teeth are chattering.B.shivering

13.Mary _________ with embarrassment when she couldn’t answer the question.C.flushed

14.The road was so slippery when the snow was frozen into ice that I nearly __ down the mountain slope.B.slid。

15.She felt __________ and did nothing but sleep the whole day.A.slack

第八单元选择题

1._________ and they will take a mile.A.Give them an inch

2.The Americans spend Christmas Day __________ that the Europeans do.B.in much the same way 3.Fruits and vegetables __________ to our health greatly.C.contribute

4.Daydreaming was __________ a waste of time.C.viewed as

5.I hope you will not _________ his work.C.interfere with

6.You’ll never _________ anything if you spend your time that way!C.amount to

7.I wrote to ask him how he was getting along _________ his colleagues.A.with

8.We must ___________ about our work or we’ll fall behind the schedule.B.go

9.Unfortunately, he died before his wish to be an astronaut could ______.D.come true 10.Johnney has been warned time and again that reading in bed will ________ his eyesight, but he just won’t listen.B.affect

11.It seems to me that I have been __________ my duty.C.neglecting 12.Great efforts are needed before we can __________ our goal of economic reform.C.attain

13.As it turned out, the speaker was shout down by the _________ crowd.A.hostile

14.The quickest ___________ of travel is by plane.C.means 15.Guesswork is no ___________ for investigationD.substitute

第二篇：大学英语期末考试复习资料

期末考试复习

翻译

1． Some immigrate to a new land just for economic reasons Others for adventurous motivation, and still others for the values that might suit their own ideals.一些人出于冒险的动机,还有一些是出于更合适于个人发展的价值观的目的

2． In order to escape starvation and war in their respective homelands,waves of immigrants bring into developed countries not just menial jobs but also in new ideas and high-tech skills, thus making them more productive

而且带来了新思想,高科技，结果使这些国家生产力更强

3． A majority of college graduates see employment after graduation as an option to embrace the opportunities to earn enough to live a decent life

遇到挣钱过好日子。。

4． and it was subsequently translated into five languages 后来相继被译成。。

5． in the hope that I might recognize her

希望我能。。

6． Initially, I felt shy and insecure about my job

起初我害羞。。

7． I felt completely out of place and ended up in early departure from the party

我觉得自己完全。。

8． I want you to take the initiative to carve out a bright future for yourself

我想让你做主。。

1.With the constant emergence of promising newcomers

随着优秀选手的不断涌现

2.This is particularly true of China’s emerging urban middle-class

中国新兴城市中的中产阶级尤为如此 3.what is certain about tea drinking is that

关于饮茶所能确知的事

4.whether there was a chance that the Minister could be forced to resign over wrongdoing

部长是否有可能因不法行为被迫辞职

5.in transition towards sustainable development

向可持续发展过度

6.helps children feel secure that their families will stay intact

使孩子看到家庭的完整而有安全感

7.why the dinosaurs seemingly died out all at once

为什么恐龙似乎突然绝迹

8.widen the gap between those with access to new knowledge and those excluded from it

加拿大能够有新知识及不能享有的人群的差距

1.When you compare good language learners with poor ones, what sets them apart is self-discipline.比较成功的语言学习者和不太成功的语言学习者,二者的区别在于他们的自我约束

2.By contrast, confidence, more than any other factor, is turning out to be a better sign that a person may attain his goals in life.相反,自信比其他因素更能预示一个人能够达到的人生目的

3.People with a sense of humor share several attributes, one of which is that they think about everything in a hopeful way.有幽默感的人有一些共同特点,其中之一使他们考虑任何事情都满怀希望

4.Unlike the people from older generations, youngsters today are flexible enough to pursue different goals in life.与上几代人不同,现在的年轻人更加灵活,会去追求生活中不同目标

5.Successful people have gone through as many hard times as other people, but they handle the stress better.成功人士与他人一样会经历许多低潮,但是他们能更好地应对压力

6.In the employment of new staff, the company goes beyond the widespread notion that male candidates as superior to female ones.在雇新雇员时,这家公司超越了认为男性优越于女性的传统观念 7.It is proven that hope helps people bear up in a tight spot.经证明，希望可以帮助人们在困境中不气~ 8.The music school rejected his application, saying that he has neither the intellectual aptitude nor the willpower to learn how to play the piano.那家音乐学校拒绝了他的申请,说他没有弹钢琴的天赋,也没有意志力 1.What marks the distinction between the winners and the losers，胜者和败者的区别

2.carve out a niche in the international market

在国际市场上开拓商机

3.found its way into the hearts and homes of music lovers

走进了音乐爱好者的心灵和家

4.in the hard struggled hard to win liberation

为争取独立解放而艰苦风斗

5.as well as so many regrets and concerns

以及那么多的遗憾和牵挂

6.can provide an insight into past cultures and eras

可以洞察过去的文化和时代

7.in the hope of establishing mutually beneficial business relationship

希望建立互利的业务关系

8.result in unsteady, unbalanced, uncoordinated and unsustainable development.导致不稳定、不平衡、不协调以及不可持续的发展

词汇部分 decent

正派

C B D B A D A C A B 第一单元

carved out

雕出

wind up

鼓起勇气 第二单元 out of place, ended up In

脱离,结束在了 evolves

进化 in the hope of, embarked on 希望之后 virtually

事实上 demand

需求 diversity

多样性 embrace

拥抱 transform

变换 ended up in

最终在 emerged

出现 overtake

超越 collaboration

合作 maintained

保持 adapt

适应 variation

变异 B G A N D C J K M O

第三单元

Nurture

培育 attributes

属性 equivalent

等效 adversity

逆境时 measurable

衡量 motivate

激励 aptitude

资质 formidable

强大的 tragic

悲剧 chunks

大块 E B A F C J L K G M

第四单元

reshape

重塑 abused

虐待 substantially

大体上

inhale

吸入 turn out

转出

initiatives

主动 equivalent

等效 in line with

符合 crack down on

严厉打击 synonymous with 同义词 F H C I J A G B D E

第五单元

undertakings

事业 extermination

扑灭 perished

灭亡 insight

洞察 maintenance

维护 accumulate

积累 foreseeable

预见 implementing

实施 transferable

转让 supreme

最高 J O E M A L G K C

第三篇：大学英语期末考试演讲稿

Good friends

In our life,we will always meet some special person whom we will remember at the first tim when we feel happy or sad.We couldn’t simply regard them as general friends.Because the love they give to us exceeds the boundary of general friends.Ask you two questions.one :how many friends do you have ? you may answer loudly: a lot!another one :how many good friends do you have ? you may say : several , a few or even none.There are really good friends in our life.it’s your fortune to meet them.some one asked me before : what do you think about good friends? I said: Good friends are umbrella when we are in the rain;are the tissue when we weep;are the encouraging eyes when we feel anxious.It is good friends.Only raise your head will you feel the care when you fall to the ground;only turn round will you find the warmth when you feel tired in you life.It is this emotion.It will comfort you when you are hurt ,it wil deliver your soul when you feel hopeless.we need to feel this emotion with our heart ,to store this emotion with our heart ,the longer we store it the nicer we will find it is , this all that good friends give to us.It is not easy to meet good friends ,but it is more difficult to become a good friend ,so we should learn to be a good friend,then we may get good friends.

第四篇：2017大学英语期末考试作文

2017大学英语期末考试作文

Until6

Write a article about your classmates’ eating habits using the results of Activity 6 in Part Three.Your composition should include both their similarities and differences.Sample 1

Our Eating Habit

The survey shows that students usually spend little time eating.They eat three meals a day, with rice as their basic food(staple).Students from the North like pasta, for example, noodles, steamed bread, and dumplings.Most students like fresh fish, seafood and eggs.Most students eat their meals at the school cafeterias.They don’t cook at home, and some haven’t even tried cooking.Their parents or grandparents do the cooking in their families.What is unusual is the fact that many students don’t eat vegetables.They think fruit can provide all the necessary nutrients their bodies need.With some students, milk is gradually taking the place of water and other drinks.Besides, in many families, it is now the father who does most of the cooking.The role of the mother seems to have changed a lot 在第三部分写一篇关于你的同学饮食习惯的活动第6章的结果。你的作文应该包括它们的相同点和不同点.。示例1 我们的饮食习惯

调查显示学生们通常很少吃东西.。他们每天吃三顿饭，米饭作为基本食物（主食）。北方人喜欢面食，比如面条、馒头和饺子。大多数学生喜欢新鲜的鱼，海鲜和鸡蛋。大多数学生在学校食堂吃饭。他们不在家做饭，有些人甚至不尝试做饭。他们的父母或祖父母在他们的家庭做饭。

不寻常的是许多学生不吃蔬菜.。他们认为水果可以提供身体所需的所有必需营养.。与一些学生，牛奶逐渐取代水和其他饮料。此外，在许多家庭中，现在是大多数做饭的父亲。母亲的角色似乎已经改变了很多

Until7 Write aacomposition on the topic “Dining Customs in China”.You can base it on the result of your discussion.Sample

Dear Ms Williams，I’m glad to know that you will be visiting China with your husband.China is a country where people are hospitable and generous, and respect foreign visitors.I’m sure you will enjoy your stay there.You mentioned that wives were not usually invited to social activities.That used to be true, but things have changed.Now very often wives are also invited, especially to business dinners.So you won’t stay in the hotel room all the time.Of course, there are occasions when you are not invited, like business talks, and when that happens, arrangements will always be made by hospitable Chinese hosts for you to do sightseeing, shopping or things like that.As to protocol, I suggest that you do as the proverbial Romans do when in Rome.I think smiling is the best way to get along with people wherever they come from.Besides, don’t talk too much, which might seem too overpowering.Learning to speak a little bit of Chinese and being able to use chopsticks will contribute to a good beginning with the Chinese you are going to deal with.Of course, there are many other things you need to pay attention to.Wish you a pleasant stay in China.写一篇作文的题目“餐饮习俗在中国”。你可以根据你讨论的结果。样品

亲爱的威廉姆斯女士，我很高兴知道你将与你的丈夫访问中国。中国是一个人民热情好客和慷慨的国家，并尊重外国游客。我相信你会喜欢你在那里。

你提到妻子通常不被邀请参加社交活动。这曾经是真实的，但事情已经改变。现在也经常邀请妻子，特别是商务宴请.。所以你不会一直呆在旅馆房间里。当然，有些场合，你没有被邀请，如商务会谈，当这种情况发生时，安排总是由好客的中国主人为您做观光，购物或类似的事情。

作为协议，我建议你众所周知的罗马人在罗马。我认为微笑是最好的方式与人相处，无论他们来自哪里。此外，不要说的太多，这似乎太浓烈。学会说一点汉语，并能使用筷子，将有助于与你要处理的中国人有一个良好的开端.。当然，还有很多其他的事情你需要注意。

希望你在中国过得愉快。

Until8 Unit 8

Chose one of the topics to write a composition.Money in a Student’s Life Sample 1

Sample 2

Money is important for everybody, so it is for us students.If we don’t have money, we wouldn’t be ale to study at the university in the first place

Almost everything depends on money.For us, we have to buy food, clothes, books, CDs, stamps, etc.We also have to pay for the different courses we are taking besides tuition, because some of the fees are not covered by the tuition.We have to budget our money;otherwise, we’ll have no money left at the end of the month or the semester.Many parents give their children money once for a whole semester, not one a monthly basis, so budgeting is essential.Many students borrow money from their classmates, but are unable to pay it back..Some of the students work part-time in order to relieve the financial burden or their families since their families are not wealthy.But I think this will affect their studies.So it’s better for us to save money so that we can study well.示例2

钱对每个人都很重要，对我们学生也是如此。如果我们没有钱，我们就不会在大学里开始学习了.几乎所有的一切都取决于金钱。对于我们来说，我们必须买食物，衣服，书籍，光盘，邮票等，我们还必须支付不同的课程，我们正在采取除了学费，因为一些费用不包括学费。我们必须预算我们的钱，否则，本月底或学期末我们将没有钱了.。许多家长给他们的孩子钱，整整一个学期，而不是一一个月的基础上，所以预算是必不可少的。许多学生从他们的同学借钱，但无法偿还..有些学生兼职是为了减轻经济负担或家庭，因为他们的家庭并不富裕。但我认为这会影响他们的研究。所以我们最好存钱，这样我们才能好好学习。

第三册 Sample One

It is believed that pessimism often leads to hopelessness, sickness and failure, while optimism usually brings happiness, good health and success.Pessimists also make those around them very miserable.Therefore, pessimists should change their way of thinking and overcome the negative aspects of their personalities.Here are a few tips for them:

1.Try to smile more often.A smile has great power.It can chase sadness away.It will make you and other people feel happy.And it may even make things easier and better.Smiling in the morning makes a good beginning for the day.A smile is the most important sign of optimism.2.Build up your self-confidence.Try to discover as many of your personal strengths as you can.Then write them all down.Read them several times when you are getting ready to do something or when you are facing difficulties.Your list will help you see your abilities.3.Change your way of thinking.Don't always think that things will go wrong or that if they do there will be terrible results.Instead, convince yourself that things will improve and that you can work hard to help improve them.If you fail, think about what you have learned from the failure.If you succeed, praise yourself.Don't be too modest!There is nothing more encouraging than self-praise.Try your best to become an optimist.样本一

人们相信悲观往往会导致绝望、疾病和失败，而乐观通常带来幸福、健康和成功.。悲观主义者也让周围的人很痛苦。因此，悲观主义者应该改变自己的思维方式，克服他们的性格的消极方面。这里有几个窍门：

1。尝试更多的微笑。微笑有很大的力量。它可以把悲伤带走。它会让你和其他人感到快乐。它甚至可能使事情变得更容易更好。早晨微笑是一天的好开始。微笑是乐观的最重要标志。

2。建立你的自信。尽可能多地发现你的个人优势。然后写下他们所有的。读几遍当你准备做某事或当你面对困难。你的名单将帮助你看到你的能力。

三.改变你的思维方式。不要总是认为事情会出错，否则他们会有可怕的结果。相反，说服自己，事情会改善，你可以努力工作，以帮助改善他们。如果你失败了，想想你从失败中学到了什么。如果你成功了，赞美自己。不要太谦虚！没有什么比自我表扬更令人鼓舞的了。尽你最大的努力成为一个乐观主义者。

第五篇：河北大学医学部期末考试影像复习题

X线

一、单选题

1、指出支气管肺炎最常见的X线表现（B）

A、上肺野小片状阴影

B、两中下肺野内中带散在小片状阴影有沿肺纹理分布的趋势

C、两肺弥漫性分布小结节状阴影

D、上肺野小片状阴影其内可见透亮区

2、下述哪项是肺癌更为确切的表现（C）

A、右上肺球形阴影，边缘有少许条索状及钙化影

B、左肺中野片状影，其密度不均，边缘模糊

C、右肺门上部团块状，分叶状阴影，边缘毛糙，其周围见炎性浸润，水平叶间裂上移

D、右肺下叶类圆形阴影，其中可见液平面，外围有炎性浸润

3、发生于哪一叶的支气管癌，因肺不张与肺门肿块并存在于前后位胸片上呈现横置倒“S”形边缘特征（B）

A、左肺上叶

B、右肺上叶

C、右肺中叶

D、右肺下叶

4、下述哪项是前纵隔最为常见的肿瘤（B）

A、淋巴肉瘤

B、畸胎类瘤

C、神经源性肿瘤

D、支气管囊肿

5、脓肿X线特征性改变是（B）

A、厚而不规则的壁

B、脓腔或气液平面

C、肺实质

D、胸膛反映

8、大叶性肺炎的X线分期（A）

A、充血期，红色肝样变期，灰色肝样变期和消散期

B、充血期，实变期和消散期

C、充血期，红色肝样变期和消散期

D、充血期，灰色肝样变期和消散期

9、X线平片见大片状密度增高阴影，内见大量液平面，患者咳血丝痰咳脓臭痰（A）A、可能是肺脓肿

B、可能是肺炎

C、可能是肺癌

D、可能是支气管扩张

10、胸内甲状腺（A）

A、位于前上纵膈，随吞咽动作可上下移动

B、位于前中纵隔，可见“弧形钙化” C、位于中纵隔，呈波浪状 D、以上都不是

11、X线在体内各部穿透力，由大到小的排列有以下几种，请指出正确者（C）（亦说人体组织密度由低至高）

A、气体，液体及软组织，脂肪，骨骼

B、骨骼，脂肪，液体及软组织，气体 C、气体，脂肪，液体及软组织，骨骼

D、脂肪，气体，液体及软组织，骨骼 E、骨骼，液体及软组织，脂肪，气体

16、造影检查的目的为（D）

A、增加器官组织的密度

B、降低器官组织的密度

C、增加器官组织的自然对比

D、增加器官组织的人工对比

18、大量气胸X线胸片可见（E）

A、患侧膈下降

B、肋间隙增宽

C、纵膈向健侧移位

D、肺不同程度的被压缩

E、以上均是

19、X线在医学上利用的原理中不包括（D）

A、利用其穿透性进行X线检查

B、利用其荧光作用进行透视检查

C、利用其摄影作用进行照片检查

D、利用其电离作用进行CT扫描

E、利用其生物效用进行肿瘤治疗

二、多选题

1、周围型肺癌，x线表现特点是（DE）

A、圆形边缘光滑锐利

B、分叶状、密度均匀

C、常有钙化灶

D、边缘不光有毛刺

E、可出现偏心空洞

3、原发性肺结核的临床和x线特点（AE）

A、多见于儿童，多数病例愈合后良好

B、多见于成人，多数病例愈合不良

C、多数临床症状轻微，但也可有明显中毒现象和明显体征者

D、x线表现显著，有沿淋巴结径路蔓延的特点，在x线表现上将它分为原发综合征和支气管淋巴结结核两型

E、结核菌素实验是一种简便而有诊断价值的方法，本病为阳性

4、位于中纵隔常见的肿物（BE）

A、畸胎类肿瘤

B、淋巴肉瘤

C、神经源性肿瘤

D、胸腺瘤

E、支气管囊性肿瘤

5、下列哪项是x线的特征（ABCDE）

A、穿透性

B、生物效应

C、感光效应

D、荧光效应

E、电离效应

二、名词解释

1、空洞（cavity）肺内病变组织坏死后经引流支气管排出后形成空洞。空洞壁可由坏死组织、肉芽组织、肿瘤组织所形成，多见于结核、肺癌。

2、空腔（intrapulmonary air containing space）是肺内生理性腔隙的病理性扩大。肺大泡、含气肺囊肿及肺气囊等都属于空腔。

3、空气支气管征（air bronchogram）肺实变X线检查中，肺实变扩展至肺门附近，较大的含气支气管与实变的肺组织常形成对比，在实变的高密度影像中可见到含气的支气管分支影，称支气管气象或空气支气管征。

三、简答题

1、中央型肺癌的x线影像表现：①早期，常无异常表现，偶尔可有局限性肺气肿或阻塞性肺炎②中晚期，主要表现为肺门肿块，呈分叶状或边缘不规则形，常同时伴有阻塞性肺炎或肺不张。直接征象为肺门肿块，可伴有偏心空洞；间接征象为阻塞性肺炎或肺不张、肺气肿。

2、常见纵膈肿瘤的分布①胸腔入口区：成年多为甲状腺肿块、儿童多为淋巴管瘤②前纵膈：常为胸腺瘤、畸胎瘤；前心膈角区的肿块多为心包囊肿和脂肪瘤③中纵膈：淋巴瘤最常见，其次为支气管囊肿；④后纵膈：神经源性肿瘤多见，主要有神经纤维瘤、神经鞘瘤或节细胞神经瘤等，可伴有局部脊柱骨质异常。

CT

一、单选题

1、以下哪一种情况CT颅脑平扫可以是阴性结果（D）

A、脑出血

B、硬脑膜外血肿

C、脑积水

D、超急性期脑梗死

E、脑萎缩

2、关于蛛网膜下腔出血的CT表现，正常的叙述是（C）

A、出血常局限性分布

B、占位效应明显

C、出血脑沟，脑裂密度增高

D、出血

E、出血不会影响到脑室

3、鞍区最常见的肿瘤是（A）

A、垂体瘤

B、脊索瘤

C、血管母细胞瘤

D、胶质瘤

E、海绵状血管瘤

4、髓母细胞瘤的好发部位是（C）

A、第二脑室

B、第四脑室

C、小脑蚓部

D、鞍上池

E、脑干

1、与原发性肝癌比较，下列哪项对诊断肝转移瘤最有价值（B）

A、边缘清楚 B、多发病灶，伴“牛眼征”

C、环样强化 D、延迟扫描为低密度灶

E、动脉期明显强化

2、慢性胆囊炎的CT特征性表现（C）

A、胆囊大,囊壁水肿，密度低

B、胆囊正常大小，肝内胆管扩张

C、胆囊小，囊壁均匀增厚

D、胆囊大，胆总管扩张

E、胆囊小，囊壁正常

3、胰腺癌的CT典型征象不包括（B）

A、胰腺局部分叶状增大

B、增强扫描肿块强化程度明显高于正常胰腺实质 C、肿块远段胰腺管局限性扩张

D、胰头增大，胰体尾萎缩

E、胰周脂肪层消失

4、最常见的桥小脑角区肿瘤是（C）A、脑膜瘤

B、面神经瘤

C、听神经瘤

D、胶质瘤

E、三叉神经瘤

二、名词解释

1、CT值是说明CT图像密度高低的一个量化的指标，单位为HU。

2、平扫指不用对比增强或造影的普通扫描。

1、CT增强扫描是经静脉注入水溶性有机碘对比剂后再进行扫描的方法。

2、腔隙性脑梗死系深部髓质小动脉闭塞致脑组织缺血坏死。缺血灶为10~15㎜大小，好发于基底节、丘脑、小脑和脑干，中老年人常见。发病一天后，CT表现为脑深部的片状低密度区，无占位效应。

三、简答题

1、椎间盘膨出的CT表现：①椎间盘向四周均匀膨出于椎体边缘，其后缘正中仍保持前凹的形态②硬膜囊前缘及椎间孔可受压③膨出的椎间盘外周可有弧形钙化，有时可显示椎间盘“真空”征和髓核钙化④骨结构改变：多表现为椎体边缘部的样骨增生、硬化⑤黄韧带肥厚、钙化：表现为椎板内侧高密度影，硬膜囊侧后缘受压、移位⑥后韧带肥厚钙化或骨化：表现为椎体后缘的圆形或椭圆形高密度影，边缘清楚。

2、脂肪肝的CT表现①全肝或某肝叶或局限性低密度区，低密度区的密度低于肝内血管密度，低于脾脏密度，CT值约10~20HU②局限性脂肪肝外形不规则，不呈类圆形肿块影，无占位效应③增强扫描脂肪肝区轻度增强，正常肝区明显增强，使脂肪区的低密度更加清晰

3、大脑中动脉梗死的CT表现：主干闭塞，病灶呈三角型低密度区，基地朝向大脑凸侧，尖端指向第三脑室；豆纹动脉的远端闭塞，出现基底节回避现象。

1、肝囊肿的CT表现：平扫显示肝实质内圆形低密度区，边缘光滑，境界清楚，囊内密度均匀，CT值为0~20HU。对比增强后囊内无增强，在强化的肝实质的衬托下，囊肿境界更加清楚，囊壁一般不能显示。

2、大脑前动脉梗死的CT表现：额叶大脑镰旁长条形低密度区。

3、腰椎间盘突出的好发部位及CT表现：好发部位：腰4-5，腰5骶1发病率最高，约占95%。直接征象：①椎间盘后缘向椎管内局限性突出，密度与相应椎间盘一致，形态不一②突出的椎间盘可有大小、形态不一的钙化，多与椎间盘相连③椎管内硬膜外可见髓核游离碎片，密度高于硬膜囊④许莫结节表现为椎体上（下）缘边缘清楚的隐窝压迹，多位于椎体后1/3交界处，常上下对称出现，其中心密度低，为突出的髓核及软骨板，外周为反应性骨硬化带。间接征象①硬膜外脂肪间隙变窄、移位或消失②硬膜囊前缘或侧方及神经根受压移位③周围骨结构改变，突出髓核周围骨质硬化。

介入

简答题：

1、简述介入放射学的概念：以影像诊断学为基础，在影像设备的引导下，利用穿刺针、导管、导丝及其他介入器材，对疾病进行治疗或取得组织学、细胞学、细菌学及生理、生化资料进行诊断的学科。

2、简述球囊血管成形术的机制：通过球囊扩张，使狭窄段血管内膜、中膜及动脉粥样硬化斑撕裂，管壁张力下降，官腔扩大。损伤由血小板和纤维沉淀，后由血管内皮覆盖。

3、简述Seldinger技术操作步骤：确定血管穿刺点、皮肤消毒、注射局麻药、用尖头刀刺开皮肤2~3mm、穿刺针呈45度刺向血管、回退穿刺针、发现回血（如为搏动性回血，则为动脉；如为非搏动性回血，则为静脉）、经穿刺针送入导丝、固定导丝、退出穿刺针、沿导丝送入导管。