共用题干 Cerms（细菌） on BanknotesPeople in different countries use different types of money:yuan in China,pesos in Mexico,pounds in the United Kingdom,dollars in the United States,Australia and New Zealand.They may use different cur-rencies,but these countries,
题目
Cerms（细菌） on Banknotes
People in different countries use different types of money:yuan in China,pesos in Mexico,pounds in
the United Kingdom,dollars in the United States,Australia and New Zealand.They may use different cur-
rencies,but these countries,and probably all countries,still have one thing in ________(51):germs on
the banknotes.
Scientists have been studying the germs on money for well over 100 years.At the turn of the 20th
______(52),some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency
_________(53)one country.
In a new study,Frank Vriesekoop and other researchers compared the germ populations found on bills of dif-
ferent ________(54）
Vriesekoop is a microbiologist at the University of Ballarat in Australia.He led the study,which corn-
pared the germ populations found on money _______（55)from 10 nations.The scientists studied 1,280
banknotes in total;all came from places where people buy food,like supermarkets,street vendors and
cafes,
________ (56)those businesses often rely on cash.
Overall,the Australian dollars hosted the fewest live bacteria一no more than 10 per square centimeter.
Chinese yuan had the________(57）一about 100 per square centimeter. Most of the germs on money
probably would not cause harm.
What we call "paper money"________(58)isn'tmade from paper. The U.S.dollar,for example,
is printed on fabric that is mostly cotton.Different countries may use different
________(59)to print their
money. Some of the currencies studied by Vriesekoop and his team,such as the American dollar,were made
from cotton.Others were made from polymers.
The three_______(60)with the lowest numbers of bacteria were all printed on polymers.They
included the Australian dollar,the New Zealand dollar and some Mexican pesos.
The_________(61)currencies were printed on fabric made mostly of cotton.Fewer germs lived on
the polymer notes.This_______(62)suggests that germs have a harder time staying alive on polymer
surfaces.Scientists need to do more studies to understand _________(63)germs live on money一and
whether or not we need to be concerned.Vriesekoop is now starting a study that will______(64)the
amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds,the fact remains:Paper money_________(65)germs.We should wash
our hands after touching it.After all,you never know where your money's been.Or what's living on it.
A:similarly
B:hardly
C:slightly
D:usually
相似考题
更多“共用题干 Cerms（细菌） on BanknotesPeople in different countries use different types of money:yuan in China,pesos in Mexico,pounds in the United Kingdom,dollars in the United States,Australia and New Zealand.They may use different cur-rencies,but these countries,”相关问题
-
第1题：
The ( )_ of invitation vary in different parts of the United States.A.consume
B.consult
C.customs
D.cultural
答案：C
-
第2题：
The children are taught to respect different ________ of different countries.A. culture
B. custom
C. cultures
D. customes
参考答案：C
-
第3题：
Different sizes in different countries (size chart) should be listed。()此题为判断题(对，错)。
参考答案：√
-
第4题：
The discussion should reach beyond scientific societies because_______
A． scientists have fails to predict the outcomes
B． the ties between different areas need strengthening
C． united efforts are necessary for the development of science
D． people need to work together to prevent the bad use of science
正确答案：D -
第5题：
共用题干
Germs（细菌）on Banknotes
People in different countries use different types of money:yuan in China,pesos in Mexico,pounds in the United Kingdom,dollars in the United States,Australia and New Zeal-and. They may use different currencies,but these countries,and probably all countries,still have one thing in______(1):germs on the banknotes.
Scientists have been studying the germs on money for well over 100 years. At the turn of the 20th______(2),some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency______(3)one country. In a new study,Frank Vriesekoop and other researchers compared the germ populations found on bills of different______(4).
Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the stud-y,which compared the germ populations found on money______(5)from 10 nations. The scientists studied 1,280 banknotes in total;all came from places where people buy food,like supermarkets,street vendors and cafes,______(6)those businesses often rely on cash.
Overall,the Australian dollars hosted the fewest live bacteria一no more than 10 per square centimeter. Chinese yuan had the______(7）about 100 per square centimeter. Most of the germs on money probably would not cause harm.
What we call“paper money”_________(8)isn't made from paper. The U. S. dollar,for ex- ample,is printed on fabric that is mostly cotton. Different countries may use different______(9)to print their money. Some of the currencies studied by Vriesekoop and his team,such as the American dollar,were made from cotton. Others were made from polymers.
The three______(10)with the lowest numbers of bacteria were all printed on poly-mers. They included the Australian dollar,the New Zealand dollar and some Mexican pesos.
The______(11)currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This______(12)suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand______(13)germs live on, mon-ey—and whether or not we need to be concerned. Vriesekoop is now starting a study that will______(14)the amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds,the fact remains:Paper money______(15)germs. We should wash our hands after touching it;After all,you never know where your money's been. Or what's living on it.4._________
A: countries
B: areas
C: regions
D: provinces答案：A解析：前文说了很多不同国家钞票的不同，最后一个转折，肯定是要说相同的地方。in common是固定搭配，意思是相同，共同。故选C项common。
选century最合理，意为20世纪之交。period(A项）, year(B项）或decade (D项）都不合逻辑。故选C项century。
本段第二句提供了解答本题的线索。Frank Vriesekoop的研究与以前的科学家的研究不同，他比较了各国钱币上的病菌数量，在他之前的科学家的研究范围局限于一个国家的纸币。四个选项中只有within表达“在（一个国家）里”的意思。故选B项within。
经过第四题选词的思索过程，本题很自然在different之后用countries，指不同的国家。故选A项countries。
上一句说Vriesekoop比较不同国家纸币携带病菌的数量。本题的句子明确指出他对比的纸币涉及十个国家。四个选项中只有gathered（收集）与上下文的意思相匹配。故选D项gathered。
填词所在的句子与前面的主句存在因果关系。为什么要从食品店和食品摊收集纸币呢？ 因为这些地方常要用现金支付。所以本题答案是A项because。
上一句中说澳元携带最少的细菌，本句与上一句是相对的，肯定是最多的，选A项most。
本句的句意是我们所说的纸币其实并不是由纸做的。所选的副词来修饰所说，给的四个选项分别是A项“相似地”；B项“简直不”；C项“轻微地”；D项“通常地”。所以选 D项usually合适。
本段说纸币的材料一般不是纸，通常是用棉花织物或高分子聚合物制作的。所以C项materials（材料、原料）是正确的。
前文说了不同国家的纸币携带的细菌数量不同，此处选B项货币最为合适。填入后全句意思就是：含细菌最少的三个国家的纸币……。故选B项c盯rencies。
the other＋名词表示“其他的……”。其他选项从语法上无法与the搭配。此句意为：其他纸币大部分是印在棉织物上的。所以选D项other。
本句前面两句讲述了细菌在什么样的介质上更容易存活。承接下来的应该是对之前的总结。本句四个选项的含义分别为A项“连接”；B项“参与”；C项“表述”；D项 “估计”。C选项比较合适，填入后句意为：前面的表述说明细菌在聚合物表面不易存活。故选 C项expression。
科学家要研究细菌如何在纸币上存活。所以本句选how。 if(A项）, where(B项）, when(D项）都与文意不符。故选C项how。
on different types of bills（在不同的纸币上）说明是比较关系，所以本句要选compare“比较”。故选B项compare。
纸币和细菌的关系肯定是纸币携带细菌。“避免”(A项）、“杀死”(B项）和 “选择”(D项）细菌都不正确。所以选C项carries。 -
第6题：
______,this simple gesture means five different things in five different Mediterranean countries.A.Because it seems astonishing that
B.Astonishing though it may seem
C.You will be astonished by
D.Astonished is what it was答案：B解析：本题考察状语从句，题目意为“_____,这个简单的手势在五个不同的地中海国家的意思各不相同。”A选项意为“因为这似乎令人惊讶”，B选项意为“虽然看起来令人惊讶”，C选项意为“你会被惊讶的”，D选项意为“惊讶的是它是”。选项A中，that之后引导的从句不能加逗号；选项C中，by为介词，后面接短语，不可接逗号；选项D与文意不符。
考点
状语从句 -
第7题：
共用题干
Cerms（细菌） on Banknotes
People in different countries use different types of money:yuan in China,pesos in Mexico,pounds in
the United Kingdom,dollars in the United States,Australia and New Zealand.They may use different cur-
rencies,but these countries,and probably all countries,still have one thing in ________(51):germs on
the banknotes.
Scientists have been studying the germs on money for well over 100 years.At the turn of the 20th
______(52),some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency
_________(53)one country.
In a new study,Frank Vriesekoop and other researchers compared the germ populations found on bills of dif-
ferent ________(54）
Vriesekoop is a microbiologist at the University of Ballarat in Australia.He led the study,which corn-
pared the germ populations found on money _______（55)from 10 nations.The scientists studied 1,280
banknotes in total;all came from places where people buy food,like supermarkets,street vendors and
cafes,
________ (56)those businesses often rely on cash.
Overall,the Australian dollars hosted the fewest live bacteria一no more than 10 per square centimeter.
Chinese yuan had the________(57）一about 100 per square centimeter. Most of the germs on money
probably would not cause harm.
What we call "paper money"________(58)isn'tmade from paper. The U.S.dollar,for example,
is printed on fabric that is mostly cotton.Different countries may use different
________(59)to print their
money. Some of the currencies studied by Vriesekoop and his team,such as the American dollar,were made
from cotton.Others were made from polymers.
The three_______(60)with the lowest numbers of bacteria were all printed on polymers.They
included the Australian dollar,the New Zealand dollar and some Mexican pesos.
The_________(61)currencies were printed on fabric made mostly of cotton.Fewer germs lived on
the polymer notes.This_______(62)suggests that germs have a harder time staying alive on polymer
surfaces.Scientists need to do more studies to understand _________(63)germs live on money一and
whether or not we need to be concerned.Vriesekoop is now starting a study that will______(64)the
amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds,the fact remains:Paper money_________(65)germs.We should wash
our hands after touching it.After all,you never know where your money's been.Or what's living on it._________(54)
A:countries
B:areas
C:regions
D:provinces答案：A解析：第一段在列举了各国使用不同货币的情况之后，点明了这些不同的货币上有一个相同 的地方，即上面都有细菌，故选C。
词组at the turn of the 20th century表示“在二十世纪之交”，其他各项都不能用于这个结构，故选C。
第三段主要对比讲述了两个范围的钞票细菌的研究，前面是局限在一国的研究，而后 者是研究不同国家的货币细菌的情况，故选B。
此空上文讲述了多数针对一国货币细菌的研究，这里则是对比讲述了不同国家的货币 细菌研究的情况，故选A。
单词borrow的意思为“借人”;deliver的意思为“递送”;design的意思为“设计”;gather的意思为“收集，集中”。此处指的是把10个国家的钞票收集起来进行集中研究，故选D。
四个选项中只有becaus。接表示原因的从句，其他选项都不适用于本题语境，故选A。
此空上文提到澳元上每平方厘米里只有不超过10个细菌，是最少的，而人民币在相同 范围内有大约100个，应是最多的，故选A。
单词similarly的意思为“相似地”;hardly的意思为“几乎不”;slightly的意思为“稍微 地”;usually的意思为“通常地”。由下文内容可知，所谓的纸币通常并非用纸制成，故选D。
由下文列举的几种制造钞票的材料可知，此处指的应是不同的国家所用的制作钞票的 材料不同，故选C。
本文所探讨的是对各种货币上细菌的研究，故应选B。
指一组中其余的人或事物用the other，其后接名词复数。故选D。
由上文的内容可知，Vriesekoop及其研究小组所收集的几个国家的钞票中，用聚合物制 成的钞票和由棉花制成的钞票相比，以聚合物为材料的钞票所含细菌更少，这个联系说明细菌难以在聚合物上存活，故选A。
此空的上一句提到细菌很难在聚合物上存活，因此接下来的研究应该研究细菌是如何在钞票上生活的，故选C。
由下文“on different types of bills”的提示可知，这里是比较不同钞票上的细菌的存活时间，故选B。
不同钞票上所含细菌不同，无论细菌数目和存活时间如何不同，不可否认的一个事实是它们都不可避免地会携带细菌，故选C。 -
第8题：
Questions 21 to 25 are based on the following passage. Lead deposits, which accumulated in soil and snow during the 1960’s and 70’s, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly. A study published recently in the journal Nature shows that air-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北极的) snow were declining. In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate (区分) the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States. In a study published in the journal Ambio, scientists found that lead levels in soil in the Northeastern United States had decreased markedly since the introduction of unleaded gasoline. Many scientists had believed that the lead would stay in soil and snow for a longer period. The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990. The forest environment processed and redistributed the lead faster than the scientists had expected. Scientists say both studies demonstrate that certain parts of the ecosystem (生态系统) respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute. Lead accumulation worldwide decreased significantly after the use of unleaded gas in the US （）
- A、was discouraged
- B、was enforced by law
- C、was prohibited by law
- D、was introduced
正确答案:B -
第9题：
Which description about asymmetric encryption algorithms is correct？（）
- A、They use the same key for encryption and decryption of data.
- B、They use different keys for decryption but the same key for encryption of data.
- C、They use different keys for encryption and decryption of data.
- D、They use the same key for decryption but different keys for encryption of data.
正确答案:C -
第10题：
单选题According to the author, the United States claims to be a nation _____.Acomposed of people having different values
Bencouraging individual pursuits
Csharing common interests
Dfounded on shared ideals
正确答案： C解析：
细节题。根据文章首句，在一个以理想而非血缘为基础的国家里应该允许什么样的人来这个国家工作并居住呢，可知美国以共同理想为基础，故选D。 -
第11题：
单选题According to the passage, a major difference between the colonization policy of the United States and that of Mexico in Texas in the 1800’s was the _____.Adegree to which policies were based on tradition
Bform of economic interdependency between different cultural groups
Ctreatment of the native inhabitants
Drelationship between the military and the settlers
正确答案： C解析：
根据第二段可知，美国和墨西哥对德克萨斯的殖民化的主要不同在于，墨西哥人和土著印第安人通婚，并吸收他们的文化。而美国却征服当地人。因此，主要区别是对待当地居民的态度不同。 -
第12题：
单选题Which do you choose as the best title for this passage?AMoney and Its Use
BDifferent Things Used as Money
CDifferent Countries, Different Money
DThe History of Money
正确答案： D解析：
主旨题。本文的主旨句在最后，由“Money has had an interesting history from the days of shell money until today”可知，本文的最佳标题应为D项。 -
第13题：
People in different places use different body language, for example, in China, people usually()their heads to show their disagreement.
A、nod
B、shave
C、wave
D、shake
参考答案：D
-
第14题：
Tea drinking is very popular in China.It is frequently discussed in poems and novels and appears in paintings.Tea also plays an important role in Chinese daily life.It is a custom to make tea for guests.People like to drink tea when they get together.Young people show respect to their elders by offering a cup of tea.In the traditional Chinese marriage ceremony, both the bride and groom kneel in front of their parents and serve them tea as an expression of gratitude.
Tea drinking habits vary in different parts of China.People from different regions favour different types of tea.Tea drinking methods are also different.In the north of China, people like to drink tea with a bowl or a glass.Those in the south of China enjoy tasting tea with cultural tea sets.
Tea culture in China is very different from that of other countries.In the West, tea with sugar and milk may be served with desserts.An example of western tea culture is afternoon tea.Tea ceremonies also differ among eastern countries, such as the Japanese or Korean tea ceremony.
Decide each statement is T (true) or F (false) based on Passage A.
1.Making tea for guests is a western custom.
2.The bride and bridegroom kneel to serve tea to their parents in the modern Chinese marriage ceremony.
3.People in the north of China enjoy drinking tea with a bowl.
4.The westerners may drink tea served with sugar and milk.
5.Tea ceremonies among eastern countries are the same.
答案：FFTTF
-
第15题：
Of the following countries, which one can clearly be seen as collectivism?()A.United States
B.France
C.Italy
D.China
正确答案：D
解析：本句参考译文：下列国家中哪一个是明确的集体主义国家?【知识点来源：Unit 7】本题考查对集体主义价值观的理解。相对于西方国家，中国更加强调集体主义价值观。
-
第16题：
共用题干
Germs（细菌）on Banknotes
People in different countries use different types of money:yuan in China,pesos in Mexico,pounds in the United Kingdom,dollars in the United States,Australia and New Zeal-and. They may use different currencies,but these countries,and probably all countries,still have one thing in______(1):germs on the banknotes.
Scientists have been studying the germs on money for well over 100 years. At the turn of the 20th______(2),some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency______(3)one country. In a new study,Frank Vriesekoop and other researchers compared the germ populations found on bills of different______(4).
Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the stud-y,which compared the germ populations found on money______(5)from 10 nations. The scientists studied 1,280 banknotes in total;all came from places where people buy food,like supermarkets,street vendors and cafes,______(6)those businesses often rely on cash.
Overall,the Australian dollars hosted the fewest live bacteria一no more than 10 per square centimeter. Chinese yuan had the______(7）about 100 per square centimeter. Most of the germs on money probably would not cause harm.
What we call“paper money”_________(8)isn't made from paper. The U. S. dollar,for ex- ample,is printed on fabric that is mostly cotton. Different countries may use different______(9)to print their money. Some of the currencies studied by Vriesekoop and his team,such as the American dollar,were made from cotton. Others were made from polymers.
The three______(10)with the lowest numbers of bacteria were all printed on poly-mers. They included the Australian dollar,the New Zealand dollar and some Mexican pesos.
The______(11)currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This______(12)suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand______(13)germs live on, mon-ey—and whether or not we need to be concerned. Vriesekoop is now starting a study that will______(14)the amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds,the fact remains:Paper money______(15)germs. We should wash our hands after touching it;After all,you never know where your money's been. Or what's living on it.12._________
A: connection
B: participation
C: expression
D: estimation答案：C解析：前文说了很多不同国家钞票的不同，最后一个转折，肯定是要说相同的地方。in common是固定搭配，意思是相同，共同。故选C项common。
选century最合理，意为20世纪之交。period(A项）, year(B项）或decade (D项）都不合逻辑。故选C项century。
本段第二句提供了解答本题的线索。Frank Vriesekoop的研究与以前的科学家的研究不同，他比较了各国钱币上的病菌数量，在他之前的科学家的研究范围局限于一个国家的纸币。四个选项中只有within表达“在（一个国家）里”的意思。故选B项within。
经过第四题选词的思索过程，本题很自然在different之后用countries，指不同的国家。故选A项countries。
上一句说Vriesekoop比较不同国家纸币携带病菌的数量。本题的句子明确指出他对比的纸币涉及十个国家。四个选项中只有gathered（收集）与上下文的意思相匹配。故选D项gathered。
填词所在的句子与前面的主句存在因果关系。为什么要从食品店和食品摊收集纸币呢？ 因为这些地方常要用现金支付。所以本题答案是A项because。
上一句中说澳元携带最少的细菌，本句与上一句是相对的，肯定是最多的，选A项most。
本句的句意是我们所说的纸币其实并不是由纸做的。所选的副词来修饰所说，给的四个选项分别是A项“相似地”；B项“简直不”；C项“轻微地”；D项“通常地”。所以选 D项usually合适。
本段说纸币的材料一般不是纸，通常是用棉花织物或高分子聚合物制作的。所以C项materials（材料、原料）是正确的。
前文说了不同国家的纸币携带的细菌数量不同，此处选B项货币最为合适。填入后全句意思就是：含细菌最少的三个国家的纸币……。故选B项c盯rencies。
the other＋名词表示“其他的……”。其他选项从语法上无法与the搭配。此句意为：其他纸币大部分是印在棉织物上的。所以选D项other。
本句前面两句讲述了细菌在什么样的介质上更容易存活。承接下来的应该是对之前的总结。本句四个选项的含义分别为A项“连接”；B项“参与”；C项“表述”；D项 “估计”。C选项比较合适，填入后句意为：前面的表述说明细菌在聚合物表面不易存活。故选 C项expression。
科学家要研究细菌如何在纸币上存活。所以本句选how。 if(A项）, where(B项）, when(D项）都与文意不符。故选C项how。
on different types of bills（在不同的纸币上）说明是比较关系，所以本句要选compare“比较”。故选B项compare。
纸币和细菌的关系肯定是纸币携带细菌。“避免”(A项）、“杀死”(B项）和 “选择”(D项）细菌都不正确。所以选C项carries。 -
第17题：
There are many stereotypes about the character of people in various parts of the United States．In the Northeast and Midwest,people are said to be closed and private．In the South and West,however,they are often thought of as being more open and hospitable．Ask someone from St．Louis where the nearest sandwich shop is,and he or she will politely give you directions．A New Yorker might eye you at first and after deciding it is safe to talk to you,might give you a rather unexpected explanation．A person from Georgia might be very kind about directing you and even suggest some different places to eat．A Texan just might take you to the place and treat you to lunch.
American stereotypes are abundant．New Englanders are often thought of as being friendly and helpful．Southerners are known for their hospitality and warmth．People from the western part of the United States are often considered very outgoing．These differences in character can be traced to different factors such as climate,living conditions,and historical development.
When travelling from place to place,Americans themselves are often surprised at the differing degrees of friendliness in the United States.
Which of the following is true according to the passage?A.New Yorkers are usually open with stranger
B.People from the South are usually considered good host
C.The friendliest Americans travel from place to plac
D.Different parts have different customs and habit答案：B解析：第一段中是美国不同地区人物性格的对比，不难看出，本题中只有B项是真实的。 -
第18题：
共用题干
U.S.Signs Global Tobacco Treaty 1 The United States has taken the first step toward approving a global tobacco treaty that promises to help control the deadly effects of tobacco use throughout the world.Health and Human Services Secretary, Tommy Thompson, signed the Framework Convention on Tobacco Control(FCTC)this week at the United Nations.The Senate must still approve the treaty before the U.S.can implement its provisions.
2 The FCTC was developed by the World Health Organization and approved by members of the World Health Assembly,including the United States,last year.Countries that ratify it would be required to enact strict tobacco control policies.
3 For instance,cigarettes sold in those countries would have to have health warnings on at least 30% of the front and back of every pack.The treaty calls for higher tobacco taxes,restrictions on smoking in public places,and more promotion of tobacco prevention and cessation programs.It also requires bans on tobacco advertising,though there are some exceptions for countries like the United States,where the Constitution prohibits such an outright ban.
4 The impact of the treaty could be huge.The World Health Organization estimates that tobacco use kills nearly 5 million people worldwide every year.In the U.S.alone,about 440,000 people die each year from tobacco-related illnesses;about one-third of all cancers in the U.S.are caused by tobacco use.If current trends continue,WHO estimates,by 2025 tobacco will kill 10 million people each year.
5 The treaty must be ratified by at least 40 countries before it can take effect.So far,109 countries have signed it,and 1 2 have ratified it.Countries that ratify the FCTC will have to,among other things,______.
A:have ratified it
B:approving it
C:implement its provisions
D:restrict smoking in public places
E:caused by tobacco use
F:including higher tobacco taxes答案：D解析：文章第一段主要讲美国朝着批准一项全球性烟草协议迈出了第一步，这一步指的是美国本周在联合国签署了烟草控制框架性协议。故选B。
文章第二段讲烟草控制框架性协议是由世界卫生组织制定的，并且是在去年由世界卫生大会的成员国批准的。因此该段主要讲的是它的形成过程。故选D。
文章第三段列举了烟草控制框架性协钱时已通过此协议的国家的一些具体要求。故选A。
文章第四段通过列举吸烟所造成的危害来说明实施烟草控制框架性协议将产生的影响。故选E。
由文章第一段第一句话“The United States has taken the first step toward approving a global tobacco treaty…”可知，签署烟草控制框架性协议只是朝着批准该协议迈出的第一步。故选B。
文章第二段最后一句话讲到通过烟草控制框架性协议的国家必须实施严格的烟草控制措施，而文章第三段列举了一些具体应实施的措施，其中包括限制在公共场所吸烟。故选D。
文章第四段讲到，实施烟草控制框架性协议将产生巨大的影响，并列举了吸烟所造成的巨大危害。由此可见人们希望该协议的实施可以大大减少吸烟所造成的危害，尤其是大量的死亡。故选E。
由文章第五段可知，已经签署烟草控制框架性协议的国家的数量大大超过了批准该协议的国家的数量。故选A。 -
第19题：
Questions 21 to 25 are based on the following passage. Lead deposits, which accumulated in soil and snow during the 1960’s and 70’s, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly. A study published recently in the journal Nature shows that air-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北极的) snow were declining. In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate (区分) the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States. In a study published in the journal Ambio, scientists found that lead levels in soil in the Northeastern United States had decreased markedly since the introduction of unleaded gasoline. Many scientists had believed that the lead would stay in soil and snow for a longer period. The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990. The forest environment processed and redistributed the lead faster than the scientists had expected. Scientists say both studies demonstrate that certain parts of the ecosystem (生态系统) respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute. How did scientists discover the source of lead pollution in Greenland? （）
- A、By analyzing the data published in journals like Nature and Ambio.
- B、By observing the lead accumulations in different parts of the arctic area.
- C、By studying the chemical elements of soil and snow in Northeastern America.
- D、By comparing the chemical compositions of leaded gasoline used in various countries.
正确答案:D -
第20题：
If you make different trade in different countries, you must take different transport modes? （）
- A、Yes
- B、Not
- C、It must be based on cost
- D、Not mention in the paragraph
正确答案:C -
第21题：
单选题According to the passage, the scientists carried out their researches on ______.Asmokers from different parts of the world
Bsmokers from different states in the United States
Cactors and actresses who smoke a lot
Dwait staff and bartenders
正确答案： D解析：
推断题。答案来自第一段最后：…nonsmokers working in bars and restaurants in the state.由此可知其实验对象为酒吧与餐厅的侍者，答案为D。 -
第22题：
单选题The passage warns of which of the following dangers?ACompanies in the United States may receive no protection from imports unless they actively seek protection from import competition.
BCompanies that seek legal protection from import competition may incur legal costs that far exceed any possible gain.
CCompanies that are United States owned but operate internationally may not be eligible for protection from import competition under the laws of the countries in which their plants operate.
DCompanies that are not United States owned may seek legal protection from import competition under United States import relief laws.
正确答案： C解析：
从第二段第一句话以及“Internationalization increases the danger that foreign companies will use import relief laws against the very companies the laws were designed to protect.”可知，D为正确选项。 -
第23题：
单选题Which description about asymmetric encryption algorithms is correct？（）AThey use the same key for encryption and decryption of data.
BThey use different keys for decryption but the same key for encryption of data.
CThey use different keys for encryption and decryption of data.
DThey use the same key for decryption but different keys for encryption of data.
正确答案： B解析： 暂无解析 -
第24题：
单选题If you make different trade in different countries, you must take different transport modes? （）AYes
BNot
CIt must be based on cost
DNot mention in the paragraph
正确答案： C解析： 暂无解析