Unlikechemistsandphysicists,whousuallydotheirexperiment...

问题详情：

Unlike chemists and physicists,who usually do their experiments using machines,biologists and medical researchers have to use living things like there are three Nobel prize-winning scientists who actually chose to experiment on themselves—all in the name of science,reported TheTelegraph.

er Forssmann (Nobel prize winner in 1956)

Forssmann was a German studied how to put a pipe inside the heart to measure the pressure inside and decide whether a patient needs surgery.

Experiments had been done on horses before,so he wanted to try with human it was not permitted because the experiment was considered too dangerous.

Not giving up,Forssmann decided to experiment on anaesthetized (*) his own arm and made a cut,putting the pipe 30 centimeters into his vein (静脉) then climbed two floors to the X-ray room before pushing the pipe all the way into his heart.

y Marshall (Nobel prize winner in 2005)

Most doctors in the mid-20th century believed that gastritis was down to stress,spicy food or an unusually large amount of stomach in 1979 an Australian scientist named Robin Warren found that the disease might be related to a bacteria (细菌) called Helicobacter pylori.

So he teamed up with his colleague,Barry Marshall,to continue the their request to experiment on patients was denied,Marshall bravely drank some of the days later,he lost his appetite and soon was vomiting each morning—he indeed had gastritis.

h Steinman (Nobel prize winner in 2011)

This Canadian scientist discovered a new type of immune system cell(免疫细胞) called the dendritic believed that it had the ability to fight against cancer.

Steinman knew he couldn’t yet use his method to treat in 2007,when doctors told him that he had cancer and that it was unlikely for him to live longer than a year,he saw an opportunity.

With the help of his colleagues,he gave himself three different vaccines(疫苗) based on his research and a total of eight experimental therapies (疗法) though Steinman eventually died from his cancer,he lived four and a half years,much longer than doctors had said he would.

passage is mainly about 　　　. 

dangerous experiments that Nobel prize winners did on themselves

iculties that scientists went through in order to make important discoveries

reasons why some scientists chose to experiment on themselves

e Nobel prize winners who did experiments on themselves

h of the following is TRUE according to the article?

smann’s experiment ended in failure.

smann managed to do his experiment on different kinds of animals.

y Marshall succeeded by drinking some Helicobacter pylori.

y Marshall’s experiment on himself confirmed that most doctors’ belief about gastritis was correct.

the text,we can conclude that Ralph Steinman 　　　. 

overed a new type of cancer cell called the dendritic cell

d different therapies containing the dendritic cell on himself

that he himself would have cancer and die from it

eved that he was better than doctors at treating cancer

【回答】

DCB

知识点：广告布告类阅读

题型：阅读理解