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The liver(肝臟) cleans the blood and helps remove poison from the body.But liver cancer is the sixth most common cancer in the world,and now researchers are developing a new form of treatment.They say it reduces the chances of harming the patient.
   This treatment involves the use of natural,non-poisonous chemicals from plants.That is why the researchers call it a "green" method for fighting cancer.
   Kattesh Katti is a professor of radiology and physics at the University of Missouri's School of Medicine.For more than 10 years,he has studied the use of nanotechnology(納米技術(shù)) to fight cancer.
   Nanotechnology is the science of making things unimaginably small.For this study,Katti used extremely small objects to target and destroy cancer cells in the livers of mice and human cells in the laboratory.
   Kattesh Katti used very small particles (顆粒) of gold.The gold was covered in a protective material.He says the particles attract cancer cells.Those cells are far more affected by lower levels of heat than healthy cells.
   Once the particles travel to and connect with the cells,they are heated with a laser.That destroys the cancer cells,but the healthy ones around them live."The patient will be administered with these nano particles.Within a couple of hours,the patient will be treated with lasers,and then the patient can go home.So,there is no radioactivity.There is no harmful waste.There is no bad effect on the patient."
   What that means is that the patient would not have the same side effects that one can have from radiation and chemotherapy(化療).Chemotherapy drugs often are poisonous.While they kill off the cancer cells,they are also poisonous to the healthy cells and the patient can get very sick.

(1)Why is the new form of treatment called a "green" method?
B
B

A.It avoids the opportunities of hurting the patient.
B.Chemicals used in treatment are natural and harmless.
C.It helps clean the blood and remove poison from the body.
D.Plants are directly used to treat the patient without other medicine.
(2)What can we know about Katti according to the text?
A
A

A.He has been a professor in cancer research for over a decade.
B.He used nanotechnology to make small particles into gold.
C.He used nanotechnology to kill cancer cells in the hospital.
D.He thinks nano particles can treat cancer patients more effectively
(3)What's Katti's attitude toward the new method of treatment?
C
C

A.Doubtful.
B.Uncaring.
C.Positive.
D.Worried.
(4)What's the best title for the text?
A
A

A.Can fighting cancer be green?
B.Researchers can deal with liver cancer.
C.Liver cancer is not a big problem.
D.Which is better,radiation or chemotherapy?

【考點(diǎn)】說明文科技
【答案】B;A;C;A
【解答】
【點(diǎn)評】
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發(fā)布:2024/4/20 14:35:0組卷:1引用:1難度:0.3
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    發(fā)布:2025/1/1 17:30:2組卷:1引用:2難度:0.6
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    發(fā)布:2025/1/1 17:30:2組卷:0引用:4難度:0.3
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    發(fā)布:2025/1/1 17:30:2組卷:2引用:3難度:0.5
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