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  3. 共用题干 Promising Results From Cancer StudyA new experimental vaccine（疫苗）has sh...

共用题干 Promising Results From Cancer StudyA new experimental vaccine（疫苗）has sh...

admin2020-12-24  17
问题 共用题干
Promising Results From Cancer Study

A new experimental vaccine（疫苗）has shown promising results in the fight against lung cancer. In a
small Texas-based study,a vaccine developed by scientists at Baylor University Medical Centre in Dallas,
USA,cured lung cancer in some patients and slowed the progress of the disease in others.
Researchers have reported encouraging findings from this small study.Forty-three patients suffering
from lung cancer were involved in these trials.Ten of these patients were in the early stages and thirty-three
in the advanced stages of the disease.They were injected with the vaccine every two weeks for three months,
and were carefully monitored for three years.In three of the patients in the advanced stages of cancer,the
disease disappeared and in the others,it did not spread for five to twenty-four months.However,no great
difference was seen in the patients in the early stages of the illness.
This new vaccine uses the patient's own immune system. It is made specifically for each patient and is
injected into the arm or leg. It stimulates the body's immune system,which then recognizes that the cancer
cells are harmful,and attacks and destroys them.
The vaccine could be effective against other forms of cancer. It offers great hope for the treatment of
cancer.in general,although further studies are needed before such treatment can be widely used.
选项 The vaccine activates the immune system.
A:Right
B:Wrong
C:Not mentioned
答案A
解析由文章第一段最后一句话中“cured lung cancer in some patients"，可知选B。
由文章第二段第二句话可知选A.
由文章第二段最后一句话可知，在实验中早期病人的病情没有大的变化，故选B。
文章中说科学家做实验的地点在Dallas，没有提及病人来自哪里，故选C。
由文章第三段前两句话“This new vaccine uses the patient' s own immune system.It ismade specifically for each patient and is injected into the arm or leg.”可知，这种新疫苗利用病人自身的免疫系统。为每个病人做专门的疫苗，注射到胳膊或大腿上。故选B。
由文章第三段最后一句话中“It stimulates the body' s immune system, which then recogni-zes that the cancer cells are harmful, and attacks and destroys them.”可知，这种疫苗会刺激身体 的免疫系统，使免疫系统辨认出身体里的癌细胞，攻击并摧毁它们。题干中activate的意思是“激活”，与此句意思相符。
文章最后一段第一句话说这种疫苗可能对治疗其他癌症有效，故选A。第3部分：概括大意与完成句子
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