病毒的英文介紹課前演講

1、病毒的英文介紹課前演講 Why am I at home? Why dont I go to school? Why do I use a computer and a microphone for my presentation? This story begins with 病毒的英文介紹課前演講 A bat! 病毒的英文介紹課前演講 The novel coronavirus has affected human life. We all hope they disappear soon. But viruses have never disappeared from human his

2、tory. 病毒的英文介紹課前演講 病毒的英文介紹課前演講 PS 病毒的英文介紹課前演講 PS 病毒的英文介紹課前演講 Speaking of Ebola, many people think he is scary and associate it with zombieszombies 病毒的英文介紹課前演講 It is indeed very dangerous, its biosafety level is 4. And AIDS is Level 2 and SARS is Level 3. biosafety level(BSL)生物安全等級 Level 2Level 3病毒的英文

3、介紹課前演講 Ebola virus first emerged in 1976 in outbreaks of Ebola hemorrhagic fever in Zaire and Sudan. 埃博拉病毒最早于1976年在扎 伊爾和蘇丹地區(qū)爆發(fā)埃博拉出血 熱時被發(fā)現(xiàn)。 病毒的英文介紹課前演講 病毒的英文介紹課前演講 病毒的英文介紹課前演講 Finally, many organs turn into blood. 病毒的英文介紹課前演講 If you want to know more about him, You can watch The Hot Zone.（血疫） 病毒的英文介紹

4、課前演講 And dont forget 病毒的英文介紹課前演講 Black Death 病毒的英文介紹課前演講 Plague 病毒的英文介紹課前演講 黑死病的名字來源于患者由于 皮膚和組織的損壞全身遍布黑 色斑. This name comes from patients with black spots all over the body due to skin and tissue damage. 病毒的英文介紹課前演講 If Ebola is the sickle(鐮刀) of the death, then the Black Death is the death itself. 病

5、毒的英文介紹課前演講 病毒的英文介紹課前演講 病毒的英文介紹課前演講 在20世紀(jì)，這堪稱人類史上最為慘 烈的第二次世界大戰(zhàn)，歐洲因戰(zhàn)爭 而死去的總?cè)藬?shù)僅為其人口的5%。 In the twentieth century, it was called the worst World War II in human history, the total number of people who died in Europe due to war was only 5% of its population. 病毒的英文介紹課前演講 病毒的英文介紹課前演講 病毒的英文介紹課前演講 病毒的英文介紹課前演

6、講 病毒的英文介紹課前演講 Have you ever had chickenpox? 病毒的英文介紹課前演講 病毒的英文介紹課前演講 Smallpox is one of the oldest infectious diseases recorded by human beings. We can infer that smallpox has been raging for at least 3,000 years in human history. 天花是人類有記載的最古老的傳染 病之一?？梢酝茢?，天花至少在人 類歷史上肆虐了3000多年。 病毒的英文介紹課前演講 However, su

7、ch a terrible disease was completely extinct in May 1980, becoming the only infectious disease to be completely eradicated by humans so fat. 然而，這么一個可怕的病魔，卻 在1980年5月被宣告徹底消滅， 成為迄今為止人類唯一徹底消滅 的傳染病。 病毒的英文介紹課前演講 病毒的英文介紹課前演講 病毒的英文介紹課前演講 The virus is an unsolved mystery. We dont know where it came from or how to deal with it. It is lik e a vine(藤蔓) on the tree of evolution, keeping breeding. But our human struggle will not stop. 病毒的英文介紹課前演講 Wear a mask, wash your hands frequently and gather less. 病毒的英文介紹課前演講 Most importantly, refuse to eat wil