Influenza is an infection caused by flu virus...

Influenza is an infection caused by flu viruses travelling through the air and entering the body through the nose or mouth. From October 2018 to early May 2019, up to 61,200 people died due to flu complications, while up to 647,000 people were hospitalized, according to the Centers for Disease Control and Prevention. Despite similar symptoms, a cold is milder than the flu while flu symptoms develop more suddenly and severely and can impact your body above and below the neck. 1.

Several factors can lead to Influenza. 2. You can catch the flu, breathing in these droplets, or touching objects such as doorknobs or keyboards that are contaminated with the virus and then touching your nose, or mouth. People under 4, or above 65 or with a weakened immune system are at greater risk of catching the flu.

Treatment without delay plays a dominant role. If you promptly see your doctor upon noticing symptoms, he or she may give you an antiviral drug, oseltamivir. 3.“The best way to treat the flu is to rest, drink fluids and use any other remedies that best relieve your symptoms such as pain reliever for headaches and achy muscles.” says a professor of infectious diseases at Northwestern Memorial Hospital.

Prevention is better than defense.4. Experts widely agree that the single best way is to get the vaccine (疫苗) each year, which is appropriate for anyone 6 months and older. 5. Moreover, practicing good hygiene can prevent flu germs from spreading. Highly recommended are washing your hands, coughing or sneezing into a tissue, avoiding touching your nose and mouth, cleaning surfaces and objects like keyboards and telephones and avoiding crowded areas.

A.Approaches to flu vary from expert to expert.

B.You can escape catching influenza with some common-sense health practices.

C.When someone with the flu coughs or sneezes, droplets carrying the virus enter the air.

D.These can include fever, achy muscles, sore throat, cough, headache, chills, fatigue or vomiting.

E.The flu shot protects against the most common three or four flu viruses research indicates that year.

F.If taken within two days, the medicine can lessen symptoms and shorten the length of time you are sick by about a day.

G.To determine if you have the flu or a cold, your doctor will do a physical exam, ask about your symptoms, and possibly do a lab test.

高三英语七选五中等难度题查看答案及解析

The 2009 outbreak of HINI is a new kind of influenza virus, commonly referred to as “swine flu”. It is thought to be a break of four known kinds of influenza. A virus subtype H1N1: one endedmic(流行病) in humans, one endemic in birds, and two endemic in pigs (swine). The source of the outbreak in humans is still unknown, but cases were first discovered in the U.S. and soon after in Mexico.

According to the U.S. Centers for Disease Control and Prevention(CDC)，it is not yet clear how serious this new virus actually is compared with other influenza viruses, although on May 26 they stated that new cases in the U.S. have probably reached the hightest point, and most cases have so far been mild relative to “seasonal flus”. But because this is a new virus, most people will not have immunity(免疫性) to it, and illness may eventually become more severe and widspread. The H1N1 flu mainly spreads in the same way that regular “seasonal influenza” spreads through the air from coughs and sneezes or touching those infected. It cannot be transmitted from eating cooked pork or by being in close contact with pigs.

As yet there is no vaccine(疫苗) available to prevent infection although companies are in the planning stages for having one available later this year. But there is concern that the virus could vary again over the coming months, leading to a new and potentially more dangerous flu outbreak later in the year, and a vaccine that will be less effective in preventing its spread.

As of May 27, the virus had spread to more than 50 countries; however, over 80% of reported deaths have taken place in Mexico. According to the CDC, the fact that the flu’s infection activity is now monitored more closely may help explain why more flu cases than normal are being recorded in Mexico, the United States and other countries.

1.The 2009 outbreak of H1N1 is thought to ________.

A.be concerned with four endmics

B.have come from the virus from pigs

C.occur because of unknown virus in Mexico

D.be caused because of people without immunity

2.According to the U.S. Centers for Disease Control and Prevention, ______.

3.To make people worried more is that ________.

4.From the passage we can learn that ________.

A.every country is watching closely the spreading of the H1N1

B.more than one-fourth of the deaths from the H1N1 are in Mexico

C.only the United States and Mexico recorded the cased of influenza

D.effective medicine has been produced to cure the H1N1

高三英语阅读理解中等难度题查看答案及解析

. —What are you worrying about?

—It is ________ there is any chance of being infected by AH1N1 virus.

A．why           B．that            C．if            D．whether

高三英语单项填空简单题查看答案及解析

Washing hands thoroughly is one of the effective ways to avoid ________ by virus.

A．being infected　 B．infecting

C．to be infected　 D．to infect

高三英语单项填空中等难度题查看答案及解析

More strict measures should be taken____more people are infected with the virus of H1N1 flu.

高三英语单项填空简单题查看答案及解析

A human case of H7N9 was reported in 2014 when a woman______ to be infected with the bird flu virus.

A. confirmed　　　　 　　　　　 B. had been confirmed

C. was confirmed　　　 　　　 D. have confirmed

高三英语单项填空中等难度题查看答案及解析

The largest outbreak of the deadly disease Ebola(埃博拉) was caused by an infected bat biting a toddler, say a group of international researchers.

The 17-strong team of European and African tropical disease researchers, ecologists and anthropologists have spent three weeks investigating the outbreak of the disease in Guinea, Liberia, Ivory Coast and Nigeria. The researchers captured the bats and other creatures near the village of Meliandoua in remote eastern Guinea, where the disease began in December 2013. The boy was bitten and passed the infection on to his mother and both died within a week. The disease was then spread far and wide by the people who came to the funeral.

Most of the previous outbreaks have been caused by meat from dead infected animals collected by hunters who then sell it on. Fruit bats, however, are widely eaten in rural West Africa.

The team, led by epidemiologist(流行病学家) Herr Leendertz, a disease ecologist at the Robert Koch Institute in Berlin, are expected to publish their results in a major journal soon.

Herr Leendertz’s team believe that an infected straw-colored fruit bat brought the disease to Guinea. The mammals are known to travel long distances and usually settle in forests near cities. Herr Leendertz said, “ The evidence is not 100 percent and we can only say that it is possible. They can travel far in one night. I don't think an individual bat or colony(群体) migrated all the way from Congo or Gabon to West Africa. These big colonies are connected. There is a possibility for the virus to mix between colonies. The bats share the same fruit. It is likely not to have even been one species of bat. The virus may jump from one species to another."

If the bat theory is confirmed, the locals would try to destroy the colonies, which, Herr Leendertz says, would be an ecological disaster, because bats pollinate(传授花粉) plants and kill insects. And bat hunts would also only increase human contact with potentially infected animals.

1.What’s the purpose of the 17-strong team?

A. To look into the outbreak of Ebola.

B. To help the people who suffer from Ebola.

C. To help cure the infected boy of Ebola.

D. To make a study of the bats including fruit bats.

2.In Herr Leendertz’s opinion, ______.

A. people can do nothing to prevent the disease

B. the disease Ebola may jump from one species to another

C. the result of the research should be published immediately

D. the straw-colored fruit bats usually settle in forests in the rural areas

3.If the bat theory is confirmed, ______.

A. the disease Ebola will be controlled

B. all the fruit bats in Africa would be killed

C. plants would not be pollinated in the future

D. the ecosystem in Africa might lose its balance

4.What’s the main idea of this passage?

A. A toddler was bitten by a bat and died.

B. The disease Ebola is incurable at present.

C. An infected bat caused the outbreak of Ebola.

D. The deadly disease Ebola broke out in Guinea.

5.This passage can probably be classified as ______.

A. a science fiction　　　　 B. a news report

C. a lecture essay　　　 　 D. an auto-biography

高三英语阅读理解中等难度题查看答案及解析

The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.

A. to be caused                   B. to have caused               C. being caused                   D. causing

高三英语单项填空中等难度题查看答案及解析

The flu is believed ________ by viruses that like to reproduce in the cell inside the human nose and throat.

A．causing　　 B．being caused

C．to be caused　　 D．to have caused

高三英语单项填空中等难度题查看答案及解析

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式填空。将答案填写在答题卡的相应位置。

Aids is caused by a 1. (dead) virus called HIV, which attacks the body s immune system and there’s no cure for it When someone has Aids, the person loses the ability to fight other illnesses. The virus 2. (spread) in three ways. It can be passed on through 3. (protect) sex, through blood and from a mother to her child. Contrary to 4. many people think, HIV cannot be transmitted through mosquitoes, a cough or sneeze.

Since the disease 5. (burst) on the scene in the 1980s, it has become a serious problem around the world. According to WHO, more than 15 million children have lost their parents 6. Aids. Ajani, whose father died of Aids two years ago, lost his mother for the same reason.

China has also been affected by Aids. By the end of 2009, there were about 740,000 HTV 7. (carry) in China. Dr David Ho, a Chinese-American Aids expert, has devoted himself to 8. (bring) up-to-date technology to China’s Aids problem. UNAIDS also teaches young people how to prevent Aids, and set up treatment centers 9. mothers with HIV can receive medicine to help keep them from passing HIV on to their children.

Ajani and his sister are 10. (fortune). Because their mother had access to prescription Aids medicines when she was pregnant, they did not get HIV from her. Now their grandfather is caring for them.

高三英语语法填空中等难度题查看答案及解析