题目内容
Vaccination(接种疫苗) against A H1/N1 flu will begin across Britain next week, _____a sharp increase in the death cases.
A．to follow B．followed C．following D．follows
C
【解析】
试题分析：分词的逻辑主语和分词是主动关系，所以这里需要用现在分词作原因状语。
考点：非谓语动词的考查
点评：非谓语动词是英语中的重点语法项目之一，它涉及词法、句法、时态、语态和各种习惯用法，易混点比较多，在句中的位置灵活，且句法功能较多。所以学习非谓语动词时应理清非谓语动词在句中所作的成分及它们之间的区别。
For well over a thousand years, smallpox was a disease that everyone feared. The disease killed much of the native population in South America when the Spanish arrived there in the early sixteenth century. By the end of the eighteenth century, smallpox was responsible for about one in ten deaths around the world. Those who survived the disease were left with ugly scars on their skin.
It had long been well known among farmers that people who worked with cows seldom caught smallpox; instead, they often caught a similar but much milder disease called cowpox (牛痘) . A British doctor called Jenner was extremely interested in this, and so he studied cowpox. He believed that, by vaccinating (给接种疫苗) people with the disease, he could protect them against the much worse disease smallpox. In 1796, he vaccinated a boy with cowpox and, two months later, with smallpox. The boy did not get smallpox. In the next two years, Jenner vaccinated several children in the same way, and none of them got the disease．
News of the success of Jenner’s work soon spread. Vaccination soon became a common method to protect people against other diseases caused by virus, such as rabies (狂犬病), and vaccines were sent across the world to the United States and India.
It took nearly two centuries to achieve Jenner’s dream of getting free of smallpox from the whole world. In 1967, the world Health Organization (WHO) started a great vaccination program, and the last known case of smallpox was recorded in Somalia in 1977. The story of vaccinations does not end there, however. There are many other diseases that kill more and more people every year. Besides, many new diseases are being discovered. The challenge for medical researchers will, therefore, probably continue for several more centuries
【小题1】Smallpox was so serious that _________________ by the end of l8th century
| A．its death rate was up to ten percent |
| B．those who caught it were certain to die |
| C．one in ten people in the world died of smallpox |
| D．one in ten deaths in the world was caused by smallpox |
| A．make smallpox much milder |
| B．stop people from getting smallpox |
| C．protect people against any disease |
| D．prevent people’s scars after smallpox |
| A．The first experiment with cowpox was made by a British doctor. |
| B．After 1977 smallpox disappeared around the world according to WHO. |
| C．Vaccination had existed among ordinary farmers before being discovered. |
| D．Vaccination can be used to protect people in the world against not only smallpox. |
| A．vaccinations bring many new problems |
| B．vaccinations end the spread of diseases |
| C．there is a long way to go to fight against diseases |
| D．there is a long way to go to discover new diseases |
For well over a thousand years，smallpox was a disease that everyone feared．The disease killed much of the native population in South America when the Spanish arrived there in the early sixteenth century．By the end of the eighteenth century，smallpox was responsible for about one in
ten deaths around the world．Those who survived the disease were left with ugly scars on their sjun．
It had long been well known among farmers that people who worked with cows seldom caught smallpox；instead，they often caught a similar but much milder disease called cowpox (牛痘) ．A Bridsh doctor called Jenner was extremely interested in this，and so he studied cowpox He believed that，by vaccinating (给接种疫苗) people with the disease，he could protect them against the much worse disease smallpox．In 1796，he vaccinated a boy with cowpox and，two months later，with smallpox．The boy did not get smallpox．In the next two years，Jenner vaccinated several children in the same way，and none of them got the disease．
News of the success of Jenner’s work soon spread．Vaccination soon became a common method to protect people against other diseases caused by virus，such as rable (狂犬病)，and vaccines (疫苗) were sent across the world to the United States and India．
It took nearly two centuries to achieve Jenner’s dream of getting free of smallpox from the whole world．In 1967，the world Health Organization (WHO) started a great vaccination program，and the last known case of smallpox was recorded in Somalia in 1977．The story of vaccinations does not end there，however．There are many other diseases that kill more and more people every year．Besides，many new diseases are being discovered．The challenge for medical researchers will，therefore，probably continue for several more centuries
【小题1】Smallpox was so serious that by the end of l8th century
| A．its death rate was up to ten percent |
| B．those who caught it were certain to die |
| C．one in ten people in the world died of smallpox |
| D．one in ten deaths in the world was caused by smallpox |
| A．make smallpox much milder |
| B．stop people from getting smallpox |
| C．protect people against any disease |
| D．prevent people’s scars after smallpox |
| A．The first experiment with cowpox was made by a British doctor |
| B．After 1977 smallpox disappeared around the world according to WHO． |
| C．Vaccination had existed among ordinary farmers before being discovered |
| D．Vaccination can be used to protect people in the world against not only smallpox |
| A．vaccinations bring many new problems |
| B．vaccinations end the spread of diseases |
| C．there is a long way to go to fight against diseases |
| D．there is along way to go to discover new diseases |