请输入或粘贴题目内容
搜题
拍照、语音搜题，请扫码下载APP
题目内容
（请给出正确答案）
Before 1990, no giant tube worms were found in Phoenix.
A．Y
B．N
C．NG
答案
更多“Before 1990, no giant tube worms were found in Phoenix.A．YB．NC．NG”相关的问题
第1题
Before 1990, the US strategic focus is on Europe and the Middle East.
A．Y
B．N
C．NG
第2题
第3题
第4题
第5题
Immigrants are quickly fitting into this common culture, which may not be altogether elevating but is hardly poisonous. Writing for the National Immigration Forum, Gregory Rodriguez reports that today's immigration is neither at unprecedented level nor resistant to assimilation. In 1998 immigrants were 9.8 percent of population; in 1900, 13.6 percent. In the 10 years prior to 1990, 3.1 hnmigrants arrived for every 1,000 residents; in the 10 years prior to 1890, 9.2 for every 1,000. Now, consider three indices of assimilation—language, home ownership and intermarriage.
The 1990 Census revealed that a majority of immigrants from each of the fifteen most common countries of origin spoke English "well" or "very well" after ten years of residence. The children of immigrants tend to be bilingual and proficient in English. "By the third generation, the original language is lost in the majority of immigrant families". Hence the description of America as a graveyard "for language". By 1996 foreign-born immigrants who had arrive before 1970 had a home ownership rate of 75.6 percent, higher than the 69.8 percent rate among native-born Americans.
Foreign-born Asians and Hispanics "have higher rates of intermarriage than do U.S. born whites and blacks". By the third generation, one third of Hispanic women are married to non-Hispanics, and 41 percent of Asian-American women are married to non-Asians.
Rodriguez not that children in remote villages around world are fans of superstars like Arnold Schwarzenegger and Garth Brooks, yet "some Americans fear that immigrant living within the United States remain somehow immune to the nation's assimilative power".
Are there divisive issues and pockets of seething in America？ Indeed. It is big enough to have a bit of everything. But particularly when viewed against America's turbulent past, today's social induces suggest a dark and deteriorating social environment.
The word "homogenizing"(Line 1, Paragraph 1) most probably means______.
A．identifying
B．associating
C．assimilating
D．monopolizing
第6题
阅读材料，回答题。
The Public Health System
One of the biggest changes since 1990 is the degree to which bioterrorism has become a public health priority.Although there had long been concern about vulnerability to biowarfare and bioterrorism the anthrax episode in the fall of 2001 made it clear that the concern is no longer theoretical.Until very recently, the important role of public health at the frontlines of bioterrorism preparedness was unrecognized.Although concern about emerging infections has helped stimulate funding for the chronically under-appreciated public health system, the threat of bioterrorism motivated the first real infusion of new money into public health in
decades.
Many of the capabilities needed to defend against bioterrorism are the same: as those needed to combat natural emerging infections.In both instance, the problem is an unexpected outbreak of infectious disease, of which the first indication is likely to be sick people in emergency rooms or clinics.Indeed, as with the anthrax attacks, the public health and medical responses may be under way before the true nature of the outbreak is recognized. Public health and the interface with the health care system are therefore key elements in any effective response to bioterrorism.
Whether the biggest threat is natural or engineered much remains to be done.Efforts to strengthen surveillance and response worldwide and to improve communication must be accelerated and sustained.Further,we have only scratched the surface in terms of understanding the ecology of infectious diseases and developing strategies for regulating microbial traffic.We need tools for better predictive epidemiologic modeling when a new infection first appears and for better analysis of the factors that transfer pathogens across species.One encouraging development is the program in the ecology of infections diseases that was started a few years ago be the National Science Foundation in cooperation with NIH.
SARS is a good yardstick of our progress during the past 13 years.The syndrome was unusual because novel infections that spread from person to person are relatively rare.Once cases were finally reported, the public health response was vigorous.WHO warned health care providers, researchers rapidly identified a candidate virus, and prototype diagnostic tests quickly became available.The vast reach of the Internet was instrumental in sharing formation and coordinating activities worldwide.Despite these advances, SARS had already spread to many countries.In fact had the disease been as transmissible as influenza, it would have invaded virtually every country in the world by the time the public health response had begun.So what SARS tells us is that although we have come long way since 1990, we still have a long way to go.
The main idea expressed in the first paragraph is that__________. 查看材料
A.the threat of bioterrorism is real rather than theoretical
B.the concern about bio-warfare and bioterrorism has been justified
C.the public health system plays an important role in fighting against bioterrorism
D.bioterrorism has to a considerable degree become a public health priority
第7题
Internet
Almost everyone with or without a computer is aware of the latest technological revolution destined to change forever the way in which humans communicate, namely, the Information Superhighway, best exemplified by the ubiquitous Internet. Already, millions of people around the world are linked by computer simply by having a modem and an address on the "Net", in much the same way that owning a telephone links us to almost anyone who pays a phone bill. In fact, since the computer connections are made via the phone line, the Internet can be envisaged as a network of visual telephone links.
The World Wide Web, an enormous collection of Internet addresses or sites, all of which can be accessed for information, has been mainly responsible for the increase in interest in the Internet in the 1990s. Before the World Wide Web, the "Net" was comparable to an integrated collection of computerized typewriters, but the introduction of the "Web" in 1990 allowed not only text links to be made but also graphs, images and even video.
A Web site consists of a "home page", the first screen of a particular site on the computer to which you are connected, from where access can be headed to other subject related "pages" (or screens)at the site and on thousands of other computers all over the world. This is achieved by a process called "hypertext". By clicking with a mouse device on various parts of the screen, a person connected to the "Net" can go traveling, or "surfing" through a web of pages to locate whatever information required.
Anyone can set up a site, promoting your club, your institution, your company's products or simply yourself. And what is more, information on the Internet is not owned or controlled by any organization. It is, perhaps, true to say that no one and therefore everyone owns the "Net". Because of the relative freedom of access to information, the Internet has often been criticized by the media as a potentially hazardous tool in the hands of young computer users. This perception has proved to be largely false however, and the vast majority of users both young and old get connected with the Internet for the dual purposes for which it was intended--discovery and delight.
Everyone is aware of the Information Superhighway.
A．Y
B．N
C．NG
第8题
Tim Berners-Lee is the man who wrote the software(软件)programme that led to the foundation of the World Wide Web. Britain played an important part in developing the first generation of computers. The parents of Tim Berners-Lee both worked on one of the earliest commercial(商业的)computers and talked about their work at home. As a child he would build models of computers from packaging material. After graduating from Oxford University he went on to the real thing. In the 1980s scientists were already communicating using a primitive version(原始版本)of e-mail. While working at a laboratory in Switzerland, Tim Berners-Lee wrote a programme, which let him store these messages. This gave him another idea: write a programme that will let academics(学术界人士)from across the world share information on a single place. In 1990 he wrote the HTTP(服务程序所用的协议)and HTML(超文本链接标示语言)programmes which form. the basis of the World Wide Web.
The next year his programmes were placed on to the Internet. Everyone was welcome to use them and improve them if they could. Programmers used his codes(编码)to work with different operating systems. New things like web browsers(浏览器)and search engines were developed. Between 1991 and 1994 the number of web pages rose from 10 to 100,000.
In 1994 Tim Berners-Lee formed the newly formed World Wide Web Consortium(协会)，or W3C. More than 200 leading companies and laboratories are represented(代表)by W3C. Together they make sure that everyone can share equally on the web. "The Web can help people understand the way that others live and love and are human. It helps us understand the humanity of people, "he says.
1. From the lines we can infer that Tim Berners-Lee is _____.
A. British
B. American
C. Swiss
D. French
2. The main idea of this passage is _____.
A. when the Internet came into being
B. how Tim Berners-Lee formed W3C
C. why computers develop so rapidly
D. how the World Wide Web started
3. Scientists began to communicate using e-mail _____.
A. in 1980
B. after the 1980s
C. before 1990
D. in the 1960s
4. He made up his mind to write a programme that would let people from across the world share information on a single place when _____.
A. he was a child
B. he studied in Oxford University
C. he formed W3C
D. he worked at a lab in Switzerland
5. Which of the following is NOT true？ _____
A. The number of web pages rose very rapidly in the 1990s.
B. Tim's programmes were placed on to the Internet in 1990.
C. The World Wide Web will have an effect on the social development.
D. Tim Berners-Lee made a great contribution to the computer science.
第9题
根据材料，完成题。
Air Transportation
1. Airplanes are used to carry passengers， cargo and mail. Air transport companies operate scheduled airlines and non-scheduled services over local， regional， national， and international routes. The aircraft operated by these companies range from small single-engine planes to large multiengine jet transports.
2. The first air passenger services began in 1910， when dirigibles began operation between several German cities. The first scheduled airplane service to carry passengers began in the U. S in 1914. Several experimental airmail flights took place in India， Europe， and the United States before World War I， but air transport service did not become a true business until after the war.
3. During World War Two， intercontinental air transport became firmly established. After the war the new long-distance transports with advanced facilities were increasingly able to avoid storms and strong wind and make flights more economical and consistent. A new generation of "jumbo-jet" transports began operations in 1970， and the supersonic transport entered passenger service in 1976.
4. During the 1970s the number of domestic passengers on U. S airlines increased about 78%， and during the 1980s the figure was up about 58%. In 1990 there were 41.8 million international passengers， the figure was a 75% increase over 1980. The total cargo flown by U. S airlines almost doubled during the 1980s， from 5.7 billion to 10.6 billion ton-miles in 1990.
5. Major airports provide a wide range of facilities for the convenience of millions of travelers. These range from such basic services as ticket-sales counters and restaurants to luxury hotels， shopping centers and play areas for children. International airports must also have customs areas and currency exchange counters and so on.
Paragraph 2__________. 查看材料
A.Airport services
B.Training of pilots
C.Beginning period
D.Rapid growth in the U.S.
E.Development
F.Competition
第10题
Thierry Daniel Henry (born on 17 August 1977) is a French football striker currently playing for Spanish La Liga club FC Barcelona and the French national team.
Henry was born and brought up in the tough neighborhood of Les Ulis, Essonne—a suburb of Paris—where he played for an array of local sides as a youngster and showed great promise as a goal-scorer. He was spotted by AS Monaco in 1990 and signed instantly, making his professional debut in 1994. Good form. led to an international call-up in 1998, after which he signed for the Italian defending champions Juventus. He had a disappointing season playing on the wing, before joining Arsenal (兵工厂) for 10.5 million in 1999.
It was at Arsenal that Henry made his name as a world-class footballer. Despite initially struggling in the Premiership, he emerged as Arsenal's top goal-scorer for almost every season of his tenure there. Under long-time mentor and coach Arsène Wenger, Henry became a prolific striker and Arsenal's all-time leading scorer with 226 goals in all competitions. The Frenchman won two league titles and three FA Cups with the gunners shoulder to shoulder; he was twice nominated for the FIFA World Player of the Year, was named the PFA Players' Player of the Year twice, and the Football Writers' Association Footballer of the Year three times. Henry spent his final two seasons with Arsenal as club captain, leading them to the UEFA Champions League final in 2006. In June 2007, after eight years with Arsenal, he transferred to FC Barcelona for a fee of 24 million.
Henry has enjoyed similar success with the French national squad, having won the 1998 FIFA World Cup and Euro 2000 (the Delaunay Cup). In October 2007, he surpassed Michel Platini's record to become France's top goal-scorer of all time. Off the pitch, as a result of his own experience, Henry is an active spokesperson against racism in football. His footballing style. and personality have ensured that he is one of the most commercially marketable footballers in the world; he has been featured in advertisements for Nike, Reebok, Renault, Pepsi and Gillette.
When did Thierry Henry first appear in a professional football game？
A．1990.
B．1994.
C．1998.
D．1999
