【文章內(nèi)容簡介】
e infer from the third paragraph? A. Du Fu didn’t like to be an official. B. Du Fu was not loyal to the emperor. C. Du Fu became an official in his 30s. D. Du Fu was concerned about government affairs. 【解析】選D。推理判斷題。對于唐玄宗和楊貴妃的事情, 杜甫在詩歌中加以猛烈抨擊, 說明他關(guān)心政務(wù)。3. What happened in the late years of Du Fu’s life? A. He changed his writing style. B. He wandered around the country. C. He was called back by the emperor. D. He enjoyed his minor provincial post. 【解析】選B。細(xì)節(jié)理解題。從文章最后一段最后一句可知, 杜甫的余生在全國飄零。4. What is the text mainly about? A. Du Fu’s life. B. Du Fu’s poetry. C. The rule of Emperor Xuanzong. D. Du Fu’s political career. 【解析】選A。主旨大意題。綜合全文可知, 文章前面對杜甫的詩歌略做介紹, 后面重點介紹了他的生平。B(2020濰坊高二檢測)Technology has bee so advanced that the previously impossible seems to occur on a daily basis. And yet we still have no cure for the mon cold. According to Peter Barlow, a scientist at Edinburgh Napier University in the UK, the main challenge lies in the many different types of cold viruses. There are at least 160 types. They changed so easily that they quickly bee resistant to drugs, or learn to hide from our immune systems. In other words, a single cure isn’t likely to work on every type of cold. However, researchers from Stanford University have found a possible answer. They discovered a protein that the viruses need. Without it, they can’t spread inside your body. To identify the gene(基因) which produces the specific protein needed by the viruses, researchers used a geneediting technique to test all genes. These modified (改變的) cells were then exposed to a range of viruses, including ones causing the mon cold. All the viruses were unable to replicate (復(fù)制) inside cells without a gene that produces that specific protein. Then, they tested genetically modified mice, which were pletely unable to produce the protein. The mice were able to live normal lives without the protein. “Lacking that gene protected the mice pletely from viral infection, ” associate professor Jan Carette, from Stanford, told the BBC. “These mice would always die, but they lived through and we saw a very strong reduction in copying viruses and v