D【解析】spreads蔓延,流传,一般现在时;is spreading蔓延,流传,现在进行时;was spread蔓延,流传,一般过去时;has spread 蔓延,流传,现在完成时。根据句中for nearly three years可知用动词的现在完成时,即have / has done。主语是COVID 19,助动词用has。故选:D。【思路点拨】新型冠状病毒已经在中国蔓延了近三年。
COVID-19 is still spreading around the world. To fight the disease, scientists have developed different vaccines (疫苗). By now, many people have gotten COVID-19 vaccines. 1 Vaccines help teach the immune system (免疫系统) about what challenges might look like. They prepare the body to...
COVID-19 is still spreading around the world.To fight the disease,scientists have developed different vaccines (疫苗) .By now,many people have gotten COVID-19 vaccines. (1) C Vaccines help teach the immune system (免疫系统) about what challenges might look like.They prepare the body to fig...
—We'd better not go abroad, when COVID-19 is still spreading around the world. —You're right.( ) A. especially B. certainly C. properly D. differently 相关知识点: 试题来源: 解析 A [解析]especially尤其;certainly当然;properly正确地;differently不同地。根据"我们最好不要出国,...当新冠...
【题文】As COVID-19 is still spreading in many countries, quickly finding people who have the virus is very important. But COVID-19 is not easy to detect. Many people who catch the virus clearly show signs of being ill, like having a fever or coughing. But many others show no signs...
—The year 2022 is ___ unusual one. Covid-19 is still spreading around the world. —The fight against the virus is like ___ race (竞赛) against time. A. a; an B. an; a C. a; a D. an; an 相关知识点: 试题来源: 解析 B 【...
COVID-19(新冠肺炎) ___ in many parts of the world rapidly, and the situation is still serious.A.would spreadB.Had spreadC.spreadD.is spreading 相关知识点: 试题来源: 解析 【答案】 D 【解析】 考查时态。句意:新冠肺炎正在世界的许多地方迅速蔓延,形势依然严峻。根据语境可知,此处想要表达新冠...
根据COVID- 19(新冠肺炎)is breaking out around the world now"新冠肺炎现在在世界各地爆发"可知,它"扼杀"了我们重返学校的机会。用kills。故选:A.--新冠肺炎现在在世界各地爆发。--太可怕了!它扼杀了我们重返学校的机会。动词是表示动作或者是状态的词,要结合语境,辨析选项动词意思,选择合适答案完成试题。
解析 B 句意:由于新型冠状病毒仍在快速传播,接种疫苗是非常必要的。before在……之前;since由于;although尽管;unless除非。根据“ the COVID-19 is still spreading rapidly, getting a vaccine(疫苗) is quite necessary”可知,“新型冠状病毒仍在快速传播”是接种疫苗的原因,用since引导原因状语从句,故选B。
COVID-19 is still spreading around the planet. This year’s Earth Day focuses on climate (气候) change. Scientists agree that climate change is causing harm to the world in the form of bad weather and natural disasters. Will climate change lead to more disease outbreaks in the future? The...