In order to prevent the disease ___________ t...

In order to prevent the disease ___________ to other districts, the authorized organization killed thousands and thousands of cows.

A. extending          B. spreading        C. expanding     D. stretching

高三英语单项填空中等难度题查看答案及解析

In order to prevent people spreading rumours through the Internet, the government decided to place ______ on the freedom of spreading news on line.

A. orders     B. reservations     C. restrictions     D. scales

高三英语单项填空简单题查看答案及解析

The stomach is an extremely strong organ, full of acid to break down each meal. In order to prevent this acid from burning a hole in our stomachs and damaging other organs, our stomach lining is specially adapted to contain the acid safely.

H. pylori are able to live in the stomach by living in the lining, safe from harsh stomach acid. These bacteria are actually pretty common in people, approximately a third of Australians have H. pylori in their bodies, but not all have symptoms.

The bacteria can eventually create infection in stomach lining, a condition known as gastritis (胃炎）, by wearing away the lining and allowing stomach acid to burn away stomach tissue, causing painful ulcers (溃疡）。

Up until the 1980s, it was thought that bacteria could not survive in stomach acid. The cause of stomach ulcers was due to lifestyle choices: stress, smoking, spicy foods; the stomach acid was breaking through the lining on its own.

This belief was first questioned in 1979 by Robin Warren, an Australian pathologist, who found bacteria on a microscope slide containing the stomach lining of a patient with gastritis. In the years that followed Warren continued his research.

Warren then teamed up with Barry Marshall in 1981 and the two continued with the research, trying to separate the mystery bacteria and find a cure. Over the next three years, they tested their theories with some positive results, however the idea that bacteria could be the cause of gastritis was not widely accepted or even acknowledged.

Finally, fed up with being ignored and confident in his findings, Barry Marshall decided to test on himself. He infected himself with H. pylori and soon developed gastritis and terrible stomach ulcers. Marshall then began to cure himself by taking a dose of antibiotics (抗生素）. This once and for all proved not only that bacteria could grow in stomach acid, but it could also cause gastritis and stomach ulcers.

Eventually, the world fully acknowledged Warren and Marshall's huge contribution to science and medicine and the two were awarded the Nobel prize in Medicine in 2005. Twenty-six years after Robin Warren first began his research.

1.Why did the academics initially refuse to accept that H. pylori caused gastritis?

A.Lifestyle choices caused stomach ulcers.

B.Stomach acid could break through the lining on its own.

C.They thought that bacteria couldn't survive in the stomach.

D.The Australian pathologist Robin Warren provided no evidence.

2.How did Barry Marshall prove that H. pylori caused gastritis?

A.Choosing unhealthy lifestyles. B.Introducing H. pylori to his own stomach.

C.Finding the bacteria on stomach lining. D.Growing H. pylori in the lab.

3.What can we infer from the text?

A.Scientific progress takes time. B.Science guides medical practices.

C.Warren is not a productive scientist. D.Only Marshall deserves the prize.

4.The text is most likely written to 　　　　　　 .

A.Chemists B.Patients C.Researchers D.The general public

高三英语阅读理解中等难度题查看答案及解析

In order to prevent the fire spreading, some of the houses nearby had been ________ before firemen arrived.

A. burned down    B. pulled down      C. put down        D. turned down

高三英语单项填空中等难度题查看答案及解析

Lucy cut down her daily spending in order to 　　　　 the financial storm．

A. prevent　　　　 B. survive　　　　 C. keep　　 D. stop

高三英语单项填空中等难度题查看答案及解析

．In order to ______the financial storm, many families cut their daily expenses.

A．prevent      B．survive       C．quit    D．miss

高三英语单项填空简单题查看答案及解析

In the past few months, the central bank governor and others ______ measures to prevent prices from rising too fast．

A．called for       　B．are calling for

C．have called for         D．will call for

高三英语单项填空中等难度题查看答案及解析

It is the prevention of disease_____ its successful treatment that has led to the rapid increase of the world’s population.

高三英语单项填空中等难度题查看答案及解析

请认真阅读下面短文，并根据所读内容在文章后图表中的空格里填入最恰当的单词。

When it comes to the prevention of heart disease, women need to pay attention to their own special risks. And so do men. Surprisingly, even children and teens need to be aware- or at least the parents who want to keep them safe do. Thankfully, scientists have also made great leaps in figuring out the specific prevention strategies that work best for all. So now, knowledge is your best protection.

What Men Need to Know

According to the American Heart Association (AHA), at least half of the people who die suddenly from heart disease each year had no clue they were sick. Some think that half of all heart attacks strike out of the blue. Not true, insists Jennifer Mieres, a spokeswoman for the AHA. A 2004 study found that at least 90 percent of first heart attacks are caused by well-known problems like high cholesterol(胆固醇) or diabetes. “If you look closely,” says she, “you’ll almost always find a risk factor that was undiscovered, ignored, or not adequately treated.”

Lifestyle changes like adopting a healthy diet, getting out for regular exercise, avoiding tobacco, losing weight are the first line of defense.

What Women Need to Know

There are some special considerations for the women who are  healthy and want to make sure they stay that way. First, they shouldn't smoke-no one should, but the habit is even harder on women's heart than it is on men's.

Women who find that they are at risk should talk to their doctor about taking a statin(他汀,药物名). Indeed, statins reduce the risk of heart disease, but there has been not enough evidence that they help high-risk women and it can't guarantee the long-term safety. So it's worth noting that a healthy diet and exercise also reduce cholesterol.

What Parents Need to Know

Last year, a study showed that overweight children and teens have arteries(动脉)that look like those of an average 45-year-old. New guidelines say these children should get a cholesterol test by age ten -- and even urge doctors to consider statins for those most at risk if nothing else works. The recommendations caused oppositions. Lifestyle changes such as diet and exercise are the best strategy, says Dr. Greer, a professor at the University of Wisconsin School of Medicine. Statins should be considered only for kids in danger.

高三英语填空题中等难度题查看答案及解析

The disease is so terrible that it made Jack’s life difficult, one problem leading to 　　 .

A. the other　　　　 B. others 　　　　 C. another 　　　　 D. the others

高三英语单项填空简单题查看答案及解析