摘要: A. could B. might C. should D. had to

网址:http://m.1010jiajiao.com/timu3_id_2958814[举报]

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.

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

 A. serious illness    B. heart disease     C. heavy bleeding   D. lack of drug

What can we learn about TXA from the passage?

 A. It can only be made in England     B. It was only used in operations before

 C. It is a patented drug              D. It is mainly used in poor countries

Doctors were worried about using TXA because ________

 A. a lot of patients died unexpectedly after using it

 B. it has no treatment effect on patients

 C. it can cause blood clots or stroke

 D. they hadn’t used it on accident victims before

What do we know from the last paragraph?

 A. It is a pity that TXA wasn’t widely used on injured patients before

 B. Tests have proved that TXA can be used on children

 C. People between 5 and 45 should be injected with TXA every year

 D. Accidents are the first leading cause of death worldwide.

查看习题详情和答案>>

A man was exploring caves by the seashore when he found a bag with a bunch of hardened clay balls.It was like someone had   36   the balls and left them out in the sun to bake.

       They didn’t look like much, but they   37   the man, so he took the bag out of the cave with him.As he walked along the beach, he   38   the clay balls one at a time out into the ocean as far as he could.He thought little about it   39   he dropped one of the clay balls and it cracked open(裂开)on a rock.Inside was a beautiful, precious stone!   40  , the man started breaking open the   41   balls.Each contained a similar treasure.He found thousands of dollars’   42   of jewels in the 20 or so leftover ones.

       Then it   43   him.He’d been on the beach a long time, throwing maybe 50 or 60 of the balls, with their hidden treasure, into the   44  .Instead of thousands of dollars in treasure, he  45   have taken home tens of thousands but he had just thrown it away!

       It’s like that   46   people.We look at someone, maybe even ourselves, but we   47   see the clay shell.It doesn’t look like much from the   48  .It isn’t always beautiful or shining, so we   49   it.We see that person as less important than someone more   50   or stylish or well known or wealthy.But we haven’t taken the time to find the treasure   51   inside that person.

       There is a treasure in each and every one of us.If we take the time to get to know that person and ask God to show us that person the   52   he sees them, then the clay begins to   53   and the brilliant jewel begins to shine forth.May we not come to the   54   of our lives and find out that we’ve thrown away a   55   in friendships because the gems (宝石) were hidden in balls of clay! May we see the people in our world as God sees them.

A.invented     B.rolled          C.handled    D.bounced

A.confused       B.encouraged      C.interested  D.relaxed

A.dipped         B.pushed          C.kicked      D.threw

A.until          B.when           C.since     D.though

A.Frightened    B.Determined      C.Excited     D.Disappointed

A.shining        B.floating        C.surviving  D.remaining

A.worth         B.value         C.cost       D.wealth

A.shocked        B.rejected        C.struck       D.delighted

A.caves         B.waves           C.seashore    D.storms

A.might         B.must          C.could       D.should

A.with          B.towards        C.about     D.between

A.hardly         B.actually        C.simply      D.luckily

A.distance       B.outside         C.weight      D.pattern

A.removed           B.suspected      C.ignored     D.reserved

A.beautiful       B.cautious         C.positive    D.grateful

A.lost           B.hidden          C.divided     D.mixed

A.moment       B.point         C.degree      D.way

A.come off       B.break away      C.take over  D.fall down

A.sight          B.best           C.middle      D.end

A.relation        B.position         C.fortune     D.memory

查看习题详情和答案>>


B
Memories of highly charged events, like the London bombings of the 7th July 2005, can be inaccurate and should not be relied on in court, according to a study in Britain. People can create false memories, bringing problems for police investigations.
The simultaneous (同时) bombings of three underground trains and a double-decker bus in London some years ago are imprinted on the minds of many people in Britain.
But our memories of the attacks are unreliable, according to a study from Portsmouth University. Forty percent of British students questioned about the events remembered seeing a film recorded by a CCTV(闭路监控) camera that shows a particular event of the bus bomb——footage(片段) which never existed. A further 28% claimed to have seen a non-existent computerized reconstruction.
Some even recalled specific details of the attack, which none of them witnessed. "The bus had just stopped to let people off when two women and a man got on," said one. "He placed a hag by his side, the woman sat down and as the bus left, there was an explosion. There was a leg on the floor." Another described how the bus had stepped at a traffic light when there was a bright light, an explosion and the roof of the bus was blown off by the power of the explosion.
"Memories are not like videotape you can return to the beginning and replay for perfect recall," said lead researcher James Ost. "Because of this, they are not reliable enough to form the basis of legal decisions." He believes people who are more creative might be more inclined to make these kinds of errors.
60.According to the passage, when people are strongly affected by an event______.
A.all they say about the event is not true
B.they couldn't remember anything
C.they couldn't go on the court to be witnesses
D.they couldn't make any errors on what they see about the event
61.The third paragraph______.
A.tells us what some people saw about the attack
B.shows that some people did create some false memories
C.shows that the London bombing was indeed a terrorist attack
D.shows that some people could remember details of an event
62.The underlined word "inclined" in the last paragraph is closest to the meaning of______.
A.careful                          B.likely                              C.serious                          D.curious
63.What is mainly discussed in the passage?
A.How our memories work.                                      B.False memories.
C.How to avoid false memories.                              D.What can be done to memories.

查看习题详情和答案>>

A few months ago as I wandered through my parents’ house, the same house I grew up in, I had a sudden, scary realization. When my parents bought the house, in 1982, they were only two years older than I am now. I tried to imagine myself in two years, ready to settle down and buy the house I’d still be living in almost 30 years later.
It seemed ridiculous. On a practical level, there’s no way I could afford to buy a house anytime soon. More importantly, I wouldn’t want to. I’m not sure where I’ll be living in two years, or what kind of job I’ll have. And I don’t think I’ll be ready to settle down and stay in one place.
So this is probably the generation gap that divides my friends and me from our parents. When our parents were our age, they’d gotten their education, chosen a career, and were starting to settle into responsible adult lives.
My friends and I – “Generation Y” – still aren’t sure what we want to do with our lives. Whatever we end up doing, we want to make sure we’re happy doing it. We’d rather take risks first, try out different jobs, and move from one city to another until we find our favorite place. We’d rather spend our money on travel than put it in a savings account.
This casual attitude toward responsibility has caused some critics to call my generation “arrogant”, “impatient”, and “overprotected”. Some of these complaints have a point. As children we were encouraged to succeed in school, but also to have fun. We grew up in a world full of technological innovation: cellphones, the Internet, instant messaging, and video games.
Our parents looked to rise vertically(垂直的)--starting at the bottom of the ladder and slowly making their way to the top, on the same track, often for the same company. That doesn’t apply to my generation.
Because of that, it may take us longer than our parents to arrive at responsible, stable adulthood. But that’s not necessarily a bad thing. In our desire to find satisfaction, we will work harder, strive for ways to keep life interesting, and gain a broader set of experiences and knowledge than our parents’ generation did.
【小题1】When the author walked through her parents’ house, she _______.

A.was frightened that she had no idea what she wanted from life
B.started to think about her own life
C.realized I should buy a house.
D.wondered why her parents had settled down early
【小题2】What is the main “generation gap” between the author and her friends and their                      parents according to the article?
A.Their attitude toward high technology.
B.Their ways of making their way to the top.
C.Their attitude towards responsibility.
D.Their ways of gaining experience.
【小题3】Which of the following might the author agree with?
A.It’s all right to try more before settling down.
B.It’s better to take adult responsibility earlier.
C.It involves too much effort to rise vertically.
D.It’s ridiculous to call her generation “arrogant”.
【小题4】What can we conclude from the article?
A.The author is envious of her parents enjoying a big house at her age.
B.Growing up in a hi-tech world makes “Generation Y” feel insecure about relationships.
C.“Generation Y” people don’t want to grow up and love to be taken care of by their parents.
D.The author wrote this article so that others would be able to understand her generation better.
【小题5】What is the main theme of the article?
A.The sudden realization of growing up.
B.A comparison between lifestyles of generations.
C.Criticisms of the young generation.
D.The factors that have changed the young generation.

查看习题详情和答案>>


B
Bicycles are a great way to get around. They’re fun to ride, especially down hills. And, as you speed along the road, you might also think of ways in which you could improve your bike— make it safer, more efficient, or more comfortable. In fact, the two-wheeled machines make for some cool science projects.
This year's Intel International Science and Engineering Fair (ISEF), held last May in Cleveland, featured(had)three bicycle projects from three countries. Like many of the other experiments presented at ISEF, the bike projects showed that some of the most interesting scientific research often begins by taking a closer look at things you care about.
Renato Angulo Chu had even grander ambitions. The 12th-grader from Lima, Peru, wanted to address some of his country's economic troubles.
"I see a problem in my country," Renato said. "If you go to the forests in Peru, in some places you cannot find electricity. If you go with my bicycle, you can turn on the lights."
Renato, 16, spent 3 years designing his special Multibike. The device looks like a fixed exercise bike. It has wires fixed along the frame and a blender strapped(fastened) to the back. Turning the pedals operates the blender. The same principle can be used to sharpen knives or sweep city streets.
The Multibike can work either as a fixed bike or as a bicycle able to travel city streets and country roads. It's made from inexpensive materials, and the user gets exercise while pedaling to operate a machine.
"You pedal the bike, and you can mix any drink you want," Renato said. More importantly, he added, the same concept could be used to bring light to houses in remote regions of the rainforest.
60. What can we learn from the first paragraph?
A. Bicycles are the best way to go about
B. Bikes should be made more comfortable to ride.
C. You can improve your bicycle for science research.
D. Many inventions are connected with the bicycle.
61. Which of the following is true according to the passage?
A. ISEF is an exhibiton displaying bicycle experiments designed by students.
B. Looking closely at things you are concerned about can lead to scientific research.
C. Renato’s improvement of the bicycle has solved the country’s great problem.
D. Renato’s special bicycle will soon be put into use in remote areas.’
62. The underlined word “address” in the third paragraph probably has the same meaning as _______.
A. make address written        B. give up             C. work at             D. speak at
63. It can be inferred that Renato’s special bicycle is mainly designed for ________.
A. distant areas in the rainforest without electricity.
B. the use of his own family to make life easier.
C. the competition of ISEF to win money to support remote rainforests
D. enough exercise by pedaling it

查看习题详情和答案>>

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网