A drug used to treat severe bleeding could sa...

A drug used to treat severe bleeding could save thousands of lives for mothers giving birth. A global trial of the drug found it reduced the risk of bleeding deaths during childbirth by nearly one-third. The study involved 20,000 women in 21 countries, mainly in Africa and Asia. The trial was carried out by London’s School of Hygiene and Tropical Medicine. The drug is called tranexamic acid(氨甲环酸）. It is low-cost and researchers said it does not cause serious side effects for mothers or babies.

The drug is used to treat mothers for severe bleeding during childbirth, also known as postpartum hemorrhage (产后出血).It is the leading cause of mother’s death worldwide, according to the World Health Organization.

Haleema Shakur is the project director of the trial. She says despite medical advances in many countries, severe bleeding after childbirth remains a big problem in some parts of the world. “It's one of the biggest killers of mothers. In Africa and Asia. about 10 percent of women will end up with severe bleeding. " The drug works by stopping blood clots（血凝块） from breaking down after a mother gives birth. The treatment can prevent the need for doctors to perform surgery to find the source of bleeding.

Shakur said the best results were reported when the drug was given to women as soon as possible after childbirth, “The earlier you give it- so within the first three hours of giving birth—the better the effect is. ”

The next step will be to get the drug where it is needed provide training for doctors and nurses on how to use it. During the trial, women were given the drug in a hospital. But researchers are looking for easier ways to administer the drug so it can be more widely used in small clinics and rural areas.

1.What is the reachers’ next plan?

A.To know how much the drug is.

B.To get permission to use the drug.

C.To let more people know the drug.

D.To make medical staff know how to use the drug.

2.What can we learn from the text?

A.The more mothers use the drug, the better its effect is.

B.African and Asian countries made great progress in medicine.

C.Postpartum hemorrhage is the leading cause of women’s death.

D.There is a long way to go before the drug can be used more widely.

3.What may be the best title for the text?

A.Care for the Health of Mothers

B.How Can We Use Tranexamic Acid Well?

C.Childbirth Drug Greatly Reduces Bleeding Deaths

D.What's the Biggest Killer of Mothers?

高二英语阅读理解困难题查看答案及解析

A cheap drug that can stop bleeding in people recently injured in an accident could potentially save the lives of tens of thousands worldwide, a new study says.

Researchers studied the effects of tranexamic acid （凝血酸）, or TXA, in more than 10,000 injured people in 40 countries who received the drug within 8 hours of being injured. The study was published in the medical journal Lancet. Doctors found that patients who got TXA had a 15percent lower chance of dying from hemorrhage than those who didn’t get it . They also had a 10 percent lower chance of dying from any other cause, including organ failure and a head injury. The study was paid for by the British government.

The drug is commonly used in wealthy countries during elective surgeries(外科手术) to stop bleeding , but isn’t used for accident victims. TXA is off-patent and made by many companies. It costs about $4.5 per gram, and a typical dose is two grams. It is usually given via an injection（注射） and would be relatively easy to introduce, even in poor countries, experts said.

Previous tests of the drug regarded its use in elective surgeries, such as heart operations, but this was the first study to test the drug on accident victims. Doctors were worried it might increase side effects such as blood clots （凝块）in the heart and lungs, strokes, or heart attacks. There was no evidence of that in the Lancet study, though the authors said it was possible they might have missed some of these incidents.

For people between 5 and 45, accidents are the second leading cause of death worldwide after AIDS, and about 600,000 injured patients bleed to death every year. Experts estimated that if TXA were readily available, between 70,000 and 100,000 lives a year could be saved. Though the drug wasn’t tested on children , experts said it would almost certainly work with them as well.

1.The underlined word” hemorrhage” in Paragraph 2 probably means ________

2.What can we learn about TXA from the passage?

3.Doctors were worried about using TXA because ________

4. What do we know from the last paragraph?

高二英语阅读理解简单题查看答案及解析

Some people have used acupuncture to treat smokers,alcoholics and people who________drugs.

高二英语完成句子困难题查看答案及解析

These traditional medicines had the____of either causing people to bleed or have a severe stomach upset.

A.trial B.professional C.survival D.potential

高二英语单项填空中等难度题查看答案及解析

Nowadays，scientists are working hard to find a best way of treating addictions ________ drugs.

A．of               B．in                C．on               D．to

高二英语单项填空中等难度题查看答案及解析

The Medical Research Council said it could not _____ use of the new drug without further tests.

A．assist             B．acquire           C．accuse            D．approve

高二英语单项填空中等难度题查看答案及解析

Always the _____ , Franklin believed the practice of moving the time could save on the use of candlelight, as candles were expensive at the time.

A.journalist B.physicist C.chemist D.economist

高二英语单项填空简单题查看答案及解析

Switching telephone providers used to be the only way homeowners could save money on telephone bills. Now thanks to new technology, comsumers have another choice-making phone calls over the internet. And this can be completely free if you call another person with an internet phone set-up.

The technology is called voice over internet protocol (协议), or VoIP. In 2005, consumer demand for VoIP dramatically grew. In the US, where popularity has grown faster than here in the UK, 8.4 million are predicted to subscribe this year. For the past couple years, VoIP pioneers such as Skype have accounted for the majority of internet phone subscribers.

VoIP is attractive to consumers because it’s cheaper than traditional phone services. With the basic equipment of PC, microphone and headset, and VoIP software and broadband internet for optimum (最适宜的) voice quality, consumers can save a fortune chatting for free to other internet phone owners and save money calling regular landlines (通讯电缆). But, as the saying goes, you get what you pay for. Many of these services suffer from uncontinuous lapses (失效) in quality. While some users may tolerate echoes or a dropped call, improved quality is needed to attract more customers.

Computing has examined the benefits of using a PC as a telephone with VoIP in how easy they were to set up, how effective they were and the range of their features.

Skype(www. skype.com) came top for its bother-free approach, easy set-up and exceptional voice clarity. Sipgate (www. sipgate. co. uk), MSN(www. messenger. msn. co. uk) and Yahoo! Messenger (uk. messenger. yahoo. com) provide an audio “wizard” that improves sound levels. Google Talk (www. google. com/ talk) was less helpful and Babble. net (www. babble. net) was let down by its poor help files. Yahoo! Messenger provides some of the best features, including the option of landline calls, webcam chats, instant messaging, voice-mail and conference calls.

1.Which one of the following if you call others?

2.The underlined sentence in Paragraph 3 implies that ______.

3.Which of the following statement is true according to the passage?

高二英语阅读理解极难题查看答案及解析

To the west and off the European Continent, there are several thousands of islands on the Continental shelf (大陆架). They are generally called the British Isles. Of all these isles, the largest one is called Great Britain. For the convenience’s sake, it is often shortened to Britain. Still to the west of Great Britain is the second largest island known as Ireland. The United Kingdom of Great Britain and Northern Ireland(UK) is made up of Great Britain, Northern Ireland, and a number of smaller islands around them. The total area of the country is some 240,000 square kilometers with a population of about 57 million.

Great Britain runs nearly 1,000 kilometers from south to north and extends, at the widest part, about 500 kilometers from west to east. Its area is some 230,000 square kilometers. Great Britain is traditionally divided into three parts, or countries: England in the south, Scotland in the north, and Wales in the southwest. There are discernible (可辨别的) differences between them even now.

England is the largest and most developed of all the three. Its area, about 130,000 square kilometers, takes up nearly 60% of the whole island. Its population is more than 46million which makes up 85% of the country’s whole population. The importance of England is so great in Britain that some foreigners just say “England” when they mean Britain. The same is true of the custom of speaking of the British people as the English who are the majority in the United Kingdom. Scotland is the second largest both in area and population. It has an area of about 78,760 square kilometers, less than 30% of the whole island, with a population of 5million, less than one-tenth of the whole population.

Wales is the smallest of the three both in area and population. In area, 20,700 square kilometers, it makes up less than 9% of the total area while its population, 2.7 million, does not exceed (超过) 5% of the whole.

1.The British Isles is made up of ________.

A. the European Continent and Great Britain

B. the UK and the Republic of Ireland

C. England, Scotland and Wales

D. several thousands of islands to the west and off the European Continent

2.Which of the following figures shows the correct position of Great Britain？

A. 　　 B. 　　 C. 　　 D.

3.From the third paragraph we can infer that Great Britain has a population of about ________ million.

A. 46　　 B. 54　　 C. 60　　 D. 57

4.Which of the following statements is TRUE？

A. Great Britain is six times larger than Wales in area.

B. England is six times larger than Scotland in area.

C. Scotland is six times larger than Wales in area.

D. England is six times larger than Wales in area.

高二英语阅读理解简单题查看答案及解析

A bright idea suddenly struck me _____ I could use the money I saved to help a poor student in the countryside.

A. whether　　　　 B. which　　　　　　 C. that　　　　　 D. what

高二英语单项填空困难题查看答案及解析