Welcome Unit【能力提升】-2020-2021学年高一英语单元巩固提升双测卷（人教版2019）

新人教英语必修一Welcome Unit 能力提升达标卷 一、阅读下列短文，从每题所给的四个选项（A、B、C和D)中选出最佳选项。 A 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, remdesitir(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 vitro(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 rem