北师大版(2019)必修第一册《Unit 3 Celebrations Lesson 3》2021年同步练习卷(帮课堂)
发布:2024/4/20 14:35:0
题组A 基础过关练单词拼写
-
1.When the doctors and nurses who helped Wuhan to fight against COVID-19 returned to Beijing,they were
组卷:0引用:1难度:0.8 -
2.Most fathers can't hold tears on their daughters'
组卷:0引用:2难度:0.7 -
3.She's much happier to perform live than in a recording
组卷:1引用:5难度:0.7 -
4.She didn't think we were
组卷:0引用:2难度:0.7 -
5.Could you be more
组卷:0引用:3难度:0.7 -
6.Your house is always so
组卷:2引用:3难度:0.7
题组B 能力提升练
-
19.Experts hope an experimental drug can be as effective against the novel coronavirus in people as it has been on cells in a controlled lab environment .
The US drug,remdesivir(瑞德西韦),began clinical trials on patients in Wuhan,Hubei province,on Wednesday.Other medications,including chloroquine,arbidol and darunavir have also recently been found capable of arresting viral growth in lab cells,but like remdesivir they require more clinical trials to confirm their safety and potency on humans.
The Phase Ⅲ trials for remdesivir have been approved by China's National Medical Products Administration and will be conducted by the China-Japan Friendship Hospital in Beijing and the Chinese Academy of Medical Sciences on patients at the Wuhan Jinyintan Hospital.
A total of 761 patients will participate in two trials-one trial to assess the drug's potency on 308 cases with mild or moderate infection,and the other on 453 severely infected patients,Cao Bin,head of the clinical trial and vice-president of the friendship hospital ,said on Wednesday .
Cao said studies have shown remdesivir is effective in inhibiting the growth of the novel coronavirus in titro(在生物体外),meaning the procedure was done on cells in a controlled environment outside of a living organism,typically in a petri dish or test tube.
But the drug has yet to show convincing clinical evidence that it can translate its positive in vitro results into actual human patients.Hence,it will require rigorous clinical testing,Cao said.
A 35-year-old patient from the United States infected with the virus was reported seeing noticeable improvement with no obvious side effects after taking the drug,according to the New England Journal of Medicine Gilead Sciences,the maker of remdesivir,said in a recent statement that it has been working with government agencies on the novel coronavirus response efforts.
However,the company stressed that remdesivir is an experimental medicine that has only been used in a handful of patients on compassionate grounds,"so we do not have an appropriately robust understanding of the effect of this drug to warrant broad use at this time".
(1)Why does the US drug,remdesivir,began clinical trials?
A.To replace the traditional medicine.
B.To confirm their safety and potency on humans.
C.To show whether remdesivir is effective in inhibiting the growth of the novel coronavirus in vitro.
D.To see how it takes effect.
(2)Which statement is true according to the passage?
A.After taking the drug,a 35-year-old patient was infected with the virus.
B.Doctors had seen apparent success treating a 35-year-old patient infected with the virus
C.Remdesivir can cure those who are infected with the novel coronavirus
D.Chinese Hospital does The Phase Ⅲ trials independently.
(3)What's the author's attitude towards the clinical trial of remdesivir?
A.Negative.
B.Critical.
C.Positive.
D.Gloomy.组卷:8引用:1难度:0.6
题组C 培优拔尖练第三节 书面表达第一节(满分0分)
-
20.假设你叫李华,是某中学的一名高三学生,你们班同学就英语学习现状进行了讨论,发现有很多问题。请你根据下面的提示给你在英国的网友Bob写一封信向他咨询,以希望得到他的帮助。同学们发现的问题有:
1.学习没兴趣;
2.单词难记;
3.张口怕出错;
4.阅读生词多;
5.写作难下笔。
要求:1.参考以上提示,提出至少三个自己在英语学习中遇到的问题;
2.可以适当增加细节,以使行文连贯;
3.词数不少于100。开头和结尾已给出,但不计入总
词数。
Dear Bob,
I'm writing to ask you for advice on some difficulties that we have met in our English studies.________
Yours,
Li Hua组卷:3引用:1难度:0.3