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问答题

Unit 9 Reading 2 (把答案对应的字母填入相应的框内)

The workers who brought the girl to the orphanage knew little about her. The streets where they found her had been her home for many years. Her parents were unknown. They left her long ago. At the orphanage, the girl, like all the children there, was taught to read and write. While she was studying at the orphanage, she learned something else—to be independent. At twenty - one, she left the orphanage and began work as a secretary. And then, in 1975, while she was still working as an ordinary secretary, something special happened. She entered the Miss Hong Kong competition and won it. This was the turning point in her life. Now her name, Mary Cheung, was known to everybody. Mary entered the competition because she wanted to show that orphanage girls could be something.

Winning the competition gave her the chance to start a new life. This led her first into television and then into business as a manager. When she was working as a manager, she had trouble with her reports. “My English just wasn’t good enough.” she says. Luckily, she had a boyfriend (who later became her husband) to help her. Mary studied management at Hong Kong Polytechnic and graduated in 1980. She started her own business in 1985. But she did not stop developing herself. She then studied at the University of Hong Kong. Since 1987, she had spent a lot of time on photography. She has held several exhibitions of her work in many places ——China, New Zealand and Paris. She still found time, however, to work on TV, write for newspapers and bring up her family. The girl from the street has come a long way, but her journey is not finished yet.

(____) 1.Before Mary Cheung was brought to the orphanage, ____________.

A. She had lived with her parents whose names were not known

B. She had lived in the streets for many years.  

C. The workers knew her well.  

D. She had learned to write and read by herself.   

(____) 2.The sentence "Orphanage girls could be something." means that Orphanage girls could be:

A. popular and successful

B. understood by others

C. Miss Hong Kong

D. known to everybody 

(____) 3.When did her life change completely?

A. In 1987.                                        

B. In 1985.   

C. In 1980.

D. In 1975. 

(____) 4.This passage is probably taken from__________

A. a newspaper

B. a science magazine

C. a history textbook               

D. a novel 

(____) 5.According to the passage, which of the following is true?

A. All the children at the orphanage liked Mary.                

B. Mary was not happy working as a secretary.

C. Mary's boyfriend was good at English.


D. Mary's life in the orphanage was difficult.

参考答案:

关联题目

问答题

18.She ________ all her money to the poor.
A、gave away
B、gave in
C、gave off
D、gave way
问答题

The bill came to over a thousand US dollars ______.
A、at all
B、in all
C、to all
D、of all
问答题

13. He took a ________ at his watch and saw that it was already lunch time.
A、stare
B、glare
C、gaze
D、glance
问答题

{Unit 8 阅读填空(将答案对应的字母填入相应的题号后的框内)

A. rare B. govern C. philosophy D. aid E. departed F. creation G. objects H. precious I. stress J. recalled K. stored L. goal M. earned N. degree O. invention  


It is an unusual person who can live free from financial 1) (____) , or who can spend money on others as easily as he spends it on himself.
Thomas Edison was one of that 2) (____) breed. Had the great inventor 3) (____) his money, he would have died a wealthy man. His first successful 4) (____) netted him $40,000, a huge sum in 1869. During his lifetime, he patented 1,093 inventions, yet he 5) (____) the world penniless.
Years later, his son Charles 6) (____) his father's approach to money: “He considered it a raw material, like metal, to be used rather than amassed, and so he kept plowing his funds back into new 7) (____) . Several times he was all but bankrupt. But he refused to let dollar signs 8) (____) his actions.”
John Wesley was the same. The founder of Methodism had the highest 9) (____) income in 18th century England, but he gave it all away. His 10) (____) about money was simple: “Earn all you can, save all you can, give all you can. }
问答题

12.Most marriages that fail list financial problems as a contributing__________.
A、relation
B、reason
C、ingredient
D、factor
问答题

Unit 1 Cloze (把答案对应的字母填入相应的框内)  


In recent years, more and more foreigners are involved in the teaching programs of the United States. Both the advantages and the disadvantages 1) (____) [A. with B. for C. of D. at] using faculty (教师[总称]) from foreign countries 2) (____) [A. in B. on C. for D. within]. teaching positions have to be 3) (____) [A. thought B. measured C. balanced D. considered] of course. It can be said that foreign 4) (____) [A. situation B. circumstance C. background D. condition] that makes the faculty member from abroad an asset (财富) also 5) (____) [A. carries B. creates C. emerges D. solves] problems of adjustment, both for the university and for the individual. 
The foreign research scholar usually isolates 6) (____) [A. himself B. oneself C. him D. one]in the laboratory as a means of protection; 7) (____) [A. otherwise B. moreover C. however D. also].what he needs is to be fitted 8) (____) [A. into B. by C. to D. with] a highly organized university system quite different from 9) (____) [A. those B. which C. what D. that ] at home. He is faced in his daily work 10) (____) [A.toward B. with C. to D. at] differences in philosophy, arrangements of courses and methods of teaching. Both the visiting professor and his students 11) (____) [A. have B. possess C. need D. lack] background in each other’s cultures. Some 12) (____) [A. concept B. feeling C. plan D. intelligence]. of what is already in the minds of American students is 13) (____) [A. ordered B. asked C. insisted D. required]by the foreign professor. While helping him to 14) (____) [A. place B. adapte C. put D. direct] himself to his new environment, the university must also 15) (____) [A. remain B. keep C. make D. cause] certain adjustments in order to 16) (____) [A. take B. make C. do D. be] full advantage of what the newcomer can 17) (____) [A. show B. afford C. express D. offer]. It isn’t always known how to make 18) (____) [A. powerful B. creative C. imaginary D. advanced] use of foreign faculty, especially at smaller colleges. This is thought to be a 19) (____) [A. scope B. range C. field D. district]where further study is called basket 20)(____) [A. on B. for C. upon D. at]. The findings of such a study will be of value to colleges and universities with foreign faculty.
问答题
2. Government forces have _________ control of the city.
A、recovered
B、reacted
C、regained
D、reassured
问答题

Unit 7 Reading 1 (把答案对应的字母填入相应的框内)

In order to rent and drive a car in Japan, you require a Japanese driving license or an international driving permit. In case of France, Germany and Switzerland, an official translation of your home country's driving license is required.

International driving permits must be obtained in your home country, usually through the National Automobile Association, before you leave for Japan. They are valid for one year and must be accompanied by your home country's driving license in order to be valid.

Japan recognizes only international driving permits, which are based on the Geneva Convention of 1949. Some countries, such as France, Germany and Switzerland, however, issue international driving permits, which are based on different conventions. The permits issued by those countries are not valid in Japan.

Instead, people with a French, German or Swiss driver's license can drive in Japan for up to one year with an official Japanese translation of their driving licenses. Contact the respective embassies or consulates in Japan for details on how to obtain a recognized translation. The minimum age for driving in Japan is 18 years.

(____) 1.What kind of permit should one obtain if he wants to rent or drive a car in Japan?

A. He must have a driver' s license of his own country.

B. He must require a Japanese driving license.

C. He should have an international driving permit.

D. Both B and C.

(____) 2.What should people do if they own a Swiss driving license and want to rent a car in Japan?

A. They should have their Swiss driving license translated into English.

B. They should have their home country's driving license translated into Japanese.

C.They should have their home country's driving license translated into French.

D. They should get a new driving license in Japan.

(____) 3.Where do people usually get their international driving license?

A. They obtain it in their home country.

B. They obtain it while they arrive in Japan.

C. They obtain it in a third country.

D. They can buy one instead.

(____) 4.Why driving permits issued by countries such as France, Germany and Switzerland are not valid in Japan?

A. Because they don't issue international driving permits.

B. Because they don't use English or Japanese.

C. Because they are based on different conventions. 

D. Because they are also based on Geneva Convention of 1949.

(____) 5.The last sentence means ________.

A. people in all ages are allowed to drive in Japan

B. people under the age of 15 can also drive in Japan

C. people at or above the age of 18 can be allowed to drive in Japan


D. people can be allowed to drive for 18 years at least
问答题
12. Wounds that are _________ to the air heal more quickly.
A、exploded
B、explored
C、exposed
D、expanded
问答题
{Unit 4 阅读填空(将答案对应的字母填入相应的题号后的框内)

A. powerful B. rejects C. medicine D. likely E. upset F. empty G. involvement H. fools I. commonly J. cases K. knowledge L. reassurance M. occasions N. heal O. treatment  


When you go to the doctor, you like to come away with a prescription.It makes you feel better to know you will get some medicine.But the doctor knows that 1) (____) is not always needed.Sometimes all a sick person needs is some 2) (____) that all will be well.In such 3) (____) the doctor may prescribe a placebo.
A placebo is a sugar pill,a harmless shot,or ail 4) (____) capsule.Even though they have no medicine in them , these things seem to make people well.The patient thinks it is medicine and begins to get better.How does this happen?
The study of the placebo opens up new 5) (____) about the way the human body can 6) (____) itself.It is as if there was a doctor in each of us.The doctor will heal the body for us if we let it.But it is not yet known just how the placebo works to heal the body.Some people say it works because the human mind 7) (____) itself.These people say that if the mind is fooled into thinking it got medicine,then it will act as if it did,and the body will feel better.
Placebos do not always work.The success of this 8) (____) t seems to rest a lot with the relationship between the patient and the doctor.If the patient has a lot of trust in the doctor and if the doctor really wants to help the patient,then the placebo is more 9) (____) to work.So in a way, the doctor is the most 10) (____) placebo of all.}
问答题

Unit 3 Reading 1(把答案对应的字母填入相应的框内)

Job letters and resumes must attract the attention of busy readers, who may spend only 60 seconds deciding whether to consider you further. This article gives you the tools to write a successful letter and resume. “Successful,” of course, means a letter and resume that will get you an interview. After that, your interpersonal skills will help you land the job. The letter and resume only aim to get you to the next step--the personal interview. Most job letters and resumes still get sent through the mail. However, a growing number of applicants(申请人) use the Interact to apply for jobs. For example, on-line services can place resumes into a bank used by hundreds, perhaps thousands, of companies. The resumes will be scanned with the use of software, which searches for key words that reflect abilities needed for specific jobs and then sends selected resumes to companies. Whether you use on-line techniques like e-mail and resume services or stick with the traditional approach(方式) the same basic writing principles apply. Your letter, no longer than one page, should be specific about the job you seek and your main selling points. The resume--one page or two at most--should simply, specifically, and neatly highlight(强调) your background.

(____) 1.A successful letter and resume will help you _________.

A. gain tools

B. get an interview

C. make decision

D. become attractive

(____) 2.The underlined word "land" in the first paragraph means “_________”.

A. obtain

B. reach

C. plan

D. place

(____) 3.According to the passage the purpose of writing a job letter and resume is to _________.

A. show you interpersonal skills

B. get a chance of being interviewed

C. attract the attention of busy readers

D. let companies know about abilities

(____) 4.Most people still send their letters and resumes through ________.

A. e-mail

B. the Internet

C. the on-line service

D. traditional mail

(____) 5.Which of the following is TRUE according to the basic writing principles mentioned in this passage?

A. The job letter should be longer than one page.

B. The resume should be longer than two pages.

C. The resume should be simple, specific and neat.


D. The job letter should include the details of all the background.
问答题

Unit 9 Reading 2 (把答案对应的字母填入相应的框内)

The workers who brought the girl to the orphanage knew little about her. The streets where they found her had been her home for many years. Her parents were unknown. They left her long ago. At the orphanage, the girl, like all the children there, was taught to read and write. While she was studying at the orphanage, she learned something else—to be independent. At twenty - one, she left the orphanage and began work as a secretary. And then, in 1975, while she was still working as an ordinary secretary, something special happened. She entered the Miss Hong Kong competition and won it. This was the turning point in her life. Now her name, Mary Cheung, was known to everybody. Mary entered the competition because she wanted to show that orphanage girls could be something.

Winning the competition gave her the chance to start a new life. This led her first into television and then into business as a manager. When she was working as a manager, she had trouble with her reports. “My English just wasn’t good enough.” she says. Luckily, she had a boyfriend (who later became her husband) to help her. Mary studied management at Hong Kong Polytechnic and graduated in 1980. She started her own business in 1985. But she did not stop developing herself. She then studied at the University of Hong Kong. Since 1987, she had spent a lot of time on photography. She has held several exhibitions of her work in many places ——China, New Zealand and Paris. She still found time, however, to work on TV, write for newspapers and bring up her family. The girl from the street has come a long way, but her journey is not finished yet.

(____) 1.Before Mary Cheung was brought to the orphanage, ____________.

A. She had lived with her parents whose names were not known

B. She had lived in the streets for many years.  

C. The workers knew her well.  

D. She had learned to write and read by herself.   

(____) 2.The sentence "Orphanage girls could be something." means that Orphanage girls could be:

A. popular and successful

B. understood by others

C. Miss Hong Kong

D. known to everybody 

(____) 3.When did her life change completely?

A. In 1987.                                        

B. In 1985.   

C. In 1980.

D. In 1975. 

(____) 4.This passage is probably taken from__________

A. a newspaper

B. a science magazine

C. a history textbook               

D. a novel 

(____) 5.According to the passage, which of the following is true?

A. All the children at the orphanage liked Mary.                

B. Mary was not happy working as a secretary.

C. Mary's boyfriend was good at English.


D. Mary's life in the orphanage was difficult.
问答题

Unit 2 Reading 1(把答案对应的字母填入相应的框内)


While radio broadcasting was still in its early stage the wonder of television was already being developed. The first step towards its invention was taken in 1873, but the person responsible for developing it was John Logie Baird. In 1926 he gave the first demonstration of a television picture.

As a home entertainment, television rapidly became more popular than any other form. A news broadcast became more immediate when people could actually see the scene in question and the movements of the figures. Films could also be available. One of the advantages of travel programs was the glimpse of faraway places which many viewers would not otherwise have seen. Though much of the entertainment was of a popular kind like quiz competitions, some remarkable cultural programs were also broadcast. Just as with radio in earlier days, a group of actors and actresses became familiar in every household. One of the most popular programs on television was sport and an interesting result of the television broadcast was the increased attendance at the actual events. How far this was due to a growth interest in the game and how far out of the people’s desire to appear on the screen is not clear.

(____) 1.Why is John Logie Baird famous in the history of television?

A. It was he who discovered the wonder of television.

B. He made the very first step towards the invention of television.

C. He developed television and was the first person to demonstrate it.

D. He was the first person to appear on television.

(____) 2.Why did the television news attract more viewers than that broadcast on radio?

A. People could actually see the people and places talked about.

B. People could be well informed staying at home.

C. People could choose to watch what they want.

D. It will make them more attractive.

(____) 3.Why were travel programs so popular?

A. The programs provided people with a lot of entertainments.

B. The programs advised people what to see and where to go.

C. People had chances to see the places where they’d like to go.

D. People were able to see other parts of the world they would never themselves be able to visit.

(____) 4.In what way did actors benefit from television?

A. They became well-known throughout the country.

B. They had more chances to appear on television.

C. They were better understood by people.

D. They were admired by their people.

(____) 5.What effect did sports programs on television have?

A. More and more people were interested in sports. 

B. More people went to watch sports events when sport was shown on television.

C. More people watch sports programs on television when there was an actual sports event.


D. More people wanted to appear on television.
问答题
12. The average ______ of beer and alcohol in the United States is very high.
A、occasion
B、assignment
C、consumption
D、consumer
问答题

Unit 6 Reading 2 (把你所选答案的对应字母填入对应题号框内) In a time of low academic achievement by children in the United States, many Americans are turning to Japan, a country of high academic achievement and economic success, for possible answers. However, the answers provided by Japanese preschools are not the ones Americans expected to find. In most Japanese preschools, surprisingly little emphasis is put on academic instruction. In one investigation, 300 Japanese and 210 American preschool teachers, child development specialists, and parents were asked about various aspects of early childhood education. Only 2 percent of the Japanese respondents (答问卷者) listed “to give children a good start academically” as one of their top three reasons for a society to have preschools. In contrast, over half the American respondents chose this as one of their top three choices. To prepare children for successful careers in first grade and beyond, Japanese schools do not teach reading, writing, and mathematics, but rather skills such as persistence, concentration, and the ability to function as a member of a group. The vast majority of young Japanese children are taught to read at home by their parents. In the recent comparison of Japanese and American preschool education, 91 percent of Japanese respondents chose providing children with a group experience as one of their top three reasons for a society to have preschools. Sixty-two percent of the more individually oriented (强调个性发展的) Americans listed group experience as one of their top three choices. An emphasis on the importance of the group seen in Japanese early childhood education continues into elementary school education. Like in America, there is diversity in Japanese early childhood education. Some Japanese kindergartens have specific aims, such as early musical training or potential development. In large cities, some kindergartens are attached to universities that have elementary and secondary schools. Some Japanese parents believe that if their young children attend a university-based program, it will increase the children’s chances of eventually being admitted to top-rated schools and universities. Several more progressive programs have introduced free play as a way out for the heavy intellectualizing in some Japanese kindergartens.  


1. We learn from the first paragraph that many Americans believe (____) .
A) Japanese parents are more involved in preschool education than American parents
B) Japan’s economic success is a result of its scientific achievements
C) Japanese preschool education emphasizes academic instruction
D) Japan’s higher education is superior to theirs
2. Most Americans surveyed believe that preschools should also attach importance to (____) .
A) problem solving
B) group experience
C) parental guidance
D) individually-oriented development
3. In Japan’s preschool education, the focus is on (____) .
A) preparing children academically
B) developing children’s artistic interests
C) tapping children’s potential
D) shaping children’s character
4. Free play has been introduced in some Japanese kindergartens in order to (____) .
A) broaden children’s horizon
B) cultivate children’s creativity
C) lighten children’s study load
D) enrich children’s knowledge
5. Why do some Japanese parents send their children to university-based kindergartens?(____)
A) They can do better in their future studies.
B) They can accumulate more group experience there.
C) They can be individually oriented when they grow up.
D) They can have better chances of getting a first-rate education.
问答题
The investigation covers an extremely broad ______ of topics.
A、number
B、gap
C、range
D、selections
问答题
7.The debaters __________ each other on their good performance.
A、convince
B、compliment
C、confirm
D、comprehend
问答题
3. The boy walking in the street was knocked down by a minibus and received ________ injuries.
A、fatal
B、excessive
C、extreme
D、disastrous
问答题

Unit 5 Reading 2 (把答案对应的字母填入相应的框内)

A jobless graduate has sued her former college for the more than £40,000 she paid in tuition fees after she failed to find work. Trina Thompson, 27, claims Monroe College in New York did not do enough to help her find employment. She is seeking to recover the £42,000 she spent on getting her degree from the college in the Bronx.

Court papers showed that Miss Thompson claimed the college's career centre did not provide her with the right advice or tips on available jobs. "They have not tried hard enough to help me," she wrote about the college in her lawsuit filed at the Bronx Supreme Court. Her mother, Carol, said her daughter was "very angry at her situation" having "put all her faith" in her college.

Miss Thompson graduated with a bachelor's degree in information technology in April but has been unable to find work. She claims she was sent three emails from the college with little job advice. "I need a full-time job placement and that's what they said they were going to help me with and they didn't," said Miss Thompson. "The IT career counselor sent me about three emails saying 'oh I have this job you should apply.' That's it."

A spokesman for the university rejected the claim. Gary Axelbank, a spokesman for Monroe College, said the lawsuit was completely without merit because the college does assist its graduates in finding employment.

(____) 1.Why did Miss Thompson sue her former college?

A.Because she couldn’t find a job after graduation.

B. Because she couldn’t pay for the tuition fee.

C. Because she couldn’t get her degree from the college.

D. Because she couldn’t pass the exams required for graduation.

(____) 2.How much did Miss Thompson ask the college to compensate for her loss?

A. £82,000.

B. £40,000.

C. Less than £40,000.

D. £42,000.

(____) 3.According to Miss Thompson, the college's career centre __________.

A. only offered the wrong advice on available jobs                                       

B. didn’t do its best to assist her in job hunting

C. didn’t do anything to help her

D. didn’t show any concern about her situation

(____) 4.Which of the following statements about Miss Thompson is true?

A. She didn’t believe in her college from the very beginning.

B. She sent three emails to her college for job advice.

C. She majored in IT in Monroe College in New York.                  

D. She had obtained a full-time job placement with the assistance of the college.

(____) 5.A spokesman for the university claimed that __________.

A. the college did make its efforts in helping Miss Thompson               

B.the college should reflect on Miss Thompson’s claim

C.finding employment for its graduates is none of the college’s business


D.the lawsuit was completely out of a revenge from the graduate
问答题
{Unit 10 阅读填空(将答案对应的字母填入相应的题号后的框内)

A. wonder B. acquired C. consistently D. regained E. nightmare F. native G. acceptance H. effective I. hid J. prominent K. decent L. countless M. recalled N. breakthrough O. automatically


When Roberto Feliz came to the USA from the Dominican Republic, he knew only a few words of English. Education soon became a 1) (____) . "I couldn't understand anything," he said. He 2) (____) from his teachers, came home in tears, and thought about dropping out.
Then Mrs. Malave, a bilingual educator, began to work with him while teaching him math and science in his 3) (____) Spanish." She helped me stay smart while teaching me English," he said. Given the chance to demonstrate his ability, he 4) (____) confidence and began to succeed in school.
Today, he is a 5) (____) doctor, runs his own clinic ,and works with several hospitals .Every day, he uses the language and academic skills he 6) (____) through bilingual education to treat his patients.

Roberto's story is just one of 7) (____) success stories. Research has shown that bilingual education is the most 8) (____) way both to teach children English and ensure that they succeed academically. In Arizona and Texas, bilingual students 9) (____) outperform their peers in monolingual programs. Calexico, Calif. , implemented bilingual education, and now has dropout rates that are less than half the state average and college 10) (____) rates of more than 90%. In E1 Paso, bilingual education programs have helped raise student scores from the lowest in Texas to among the highest in the nation.}

问答题

关于脱氧核糖核苷酸生成的叙述,正确的是(   )
 
A、脱氧核糖形成后再与碱基的连接
B、反应需要能量
C、直接发生在核苷二磷酸水平上的还原作用
D、NADH作为供氢体
E、需要脱氧核苷酸还原酶催化
问答题

肝脏进行生物转化时葡萄糖醛酸的活性供体是(   )
 
A、GA  
B、UDPG
C、ADPGA
D、CDPGA
E、UDPGA
问答题

成熟红细胞内磷酸戊糖途径所生成的 NADPH+H+的主要功能是
A、合成膜上胆固醇
B、促进脂肪合成
C、提供能量
D、维持还原型谷胱甘肽(GSH)的正常水平
E、MHb(Fe3+)还原
问答题

tRNA的转录后加工包括(   )
 
A、切除部分肽链
B、3′末端加-CCA
C、3′末端加polyA
D、5′末端糖基化
E、30S经RNaseⅢ催化切开
问答题

食物中含长链脂肪酸的甘油三酯(TG)被小肠粘膜吸收后,进入血液的方式是(   )
 
A、脂肪酸及甘油 
B、甘油二酯(DG)及脂肪酸 
C、甘油一酯(MG)及脂肪酸
D、乳糜微粒(CM)
E、微团 
问答题
在真核生物中,经RNA聚合酶I催化的转录产物是 (         )
 
A、mRNA
B、18S rRNA
C、28S rRNA
D、tRNA 
E、45S rRNA
问答题
原核生物含有的3种rRNA是
A、5S  16S   18S
B、5S   18S    28S
C、5.8S   18S   28S
D、18S    23S    28S
E、5S    16S    23S
问答题
在原核生物中以下哪种酶可以去除 RNA 引物并填补空缺?(   )
A、DNA 聚合酶Ⅱ
B、DNA 聚合酶Ⅰ
C、DNA 聚合酶Ⅲ
D、引物酶
E、DNA连接酶
问答题
小肠粘膜细胞合成甘油三酯的原料主要来源于(   )
A、食物中脂类消化吸收的产物
B、脂肪组织中甘油三酯分解的产物
C、肝细胞合成的甘油三酯再分解的产物
D、脂肪动员产生的游离脂肪酸和甘油
E、以上都是
问答题
列关于维生素的叙述正确的是
A、维生素都参与了辅酶或辅基的组成
B、维生素在体内不能合成或合成量很少,必须由食物供给
C、维生素是人类必需的营养素,需要量大
D、维生素是一组高分子有机化合物
E、引起维生素缺乏的唯一原因是摄入量不足
问答题
动物体内CO2来自(   )
A、碳原子的氧化
B、呼吸链对氢的氧化 
C、有机酸的脱羧
D、糖原的分解   
E、脂肪的分解
问答题
下列不属于Km值意义的是(      )
A、Km值是酶的特征性物理常数,可用于鉴定不同的酶
B、Km值可近似表示酶与底物之间的亲和力,Km值越小、亲和力越大
C、Km值可以预见系列反应中哪一步是限速反应
D、用Km值可以选择酶的最适底物
E、比较Km值可以估计不同酶促反应速度
问答题
关于ATP合酶的叙述,错误的是(   )
 
A、头部F1具有催化ATP合成的酶活性  
B、柄部含寡霉素敏感蛋白  
C、FO中存在H+通道
D、b亚基与a亚基结合才有催化活性  
E、F1大部分镶嵌在线粒体内膜中
问答题
氨基酸是通过下列哪种化学键与tRNA结合?(   )
 
A、糖苷键
B、酯键
C、酰胺键
D、磷酸酯键
E、氢键
问答题
在原核生物的翻译过程中,SD序列决定
A、翻译的起始速度
B、mRNA识别大亚基 
C、多肽链的合成方向
D、翻译的终止速度  
E、mRNA识别小亚基
问答题
脱羧后能产生舒血管活性物质的氨基酸是(   )
 
A、精氨酸
B、谷氨酸
C、鸟氨酸 
D、色氨酸  
E、组氨酸
问答题
在心肌细胞中,1分子葡萄糖有氧氧化和无氧氧化产ATP之比是(   )
A、5:1
B、5或6:1 
C、15:1
D、16:1
E、15或16:1
问答题

280nm波长处有较大吸收峰的氨基酸是( )   


A、丝氨酸和苏氨酸 
B、谷氨酸和天冬氨酸 
C、甲硫氨酸和苯丙氨酸 
D、色氨酸和酪氨酸 
E、精氨酸和组氨酸
问答题
1分子葡萄糖酵解时可净生成几分子ATP    A.1    B.2    C.3    D.4    E.5
问答题
两个DNA片段都已合成,要把它们连接在一起,可按下面哪种次序进行酶促反应?(   )
 
A、DNA聚合酶Ⅰ(5′→3′核酸外切酶)、DNA聚合酶I(聚合酶)和连接酶
B、DNA聚合酶Ⅰ(5′→3′核酸外切酶)、DNA聚合酶Ⅲ和连接酶
C、核糖核酸酶、DNA聚合酶Ⅲ和连接酶
D、引物酶、DNA聚合酶I和连接酶
E、解旋酶、DNA聚合酶Ⅲ和连接酶

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