【正文】
mers in the church appeared in significant quantities around the painting, despite the fact that visitors getting access to the artwork are strictly regulated. Only a few visitors are allowed inside the church at a time, and they enter the building and can stay for only 15 minutes each. However, fatty lipids from visitors’skin can bine with dust in the air and pollute the painting if they e in contact with it, said study researcher Nancy Daher of the University of Southern California. Even previous restorations of the painting may pollute its surface, Daher said. Tiny particulates of the wax applied during early repair efforts can be emitted from the painting, get into the air and tarnish(使失去光澤)the painting in the same manner as the fatty lipids. The researchers noted that their airsample analysis could be used as a point of reference for future studies aimed at protecting valuable artwork and artifacts. 9. What does the underlined word “particulates” in Paragraph 2 probably mean? A. The smallest parts of a chemical substance. B. Things dirtier than usual. C. Certain types of gas. D. Extremely small pieces of dirt, which cause serious pollution. 10. According to the text, the following factors pollute the painting EXCEPT . A. fatty lipids from the skinB. tiny particles of the waxC. breath of the visitorsD. dust in the air11. According to the researchers, which of the following is NOT true of their airsample analysis? A. The airsample analysis was got by gathering air in the church for a year. B. The airsample analysis showed that the painting is pletely away from air pollution. C. The airsample analysis can be helpful for future studies protecting valuable artwork. D. The airsample analysis showed that the particulates around the da Vinci painting were decreased successfully. 12. What can be the best title of the text? A. How to decrease levels of particulates effectivelyB. The famous painting—da Vinci’s The Last SupperC. Keeping air pollution from damaging da Vinci’s The Last SupperD. How to protect artwork in households【拓展訓(xùn)練】1. 閱讀B篇文章, 寫出下列單詞的含義。 專業(yè)資料分享 閱讀理解(建議用時(shí): 25分鐘)A體裁議論文題材禽流感的防治詞數(shù)373Tiredness, coughing, a ru