话题：新冠病毒源头与介绍
距离高考还有一段时间，不少有经验的老师都会提醒考生，愈是临近高考，能否咬紧牙关、学会自我调节，态度是否主动积极，安排是否科学合理，能不能保持良好的心态、以饱满的情绪迎接挑战，其效果往往大不一样。以下是本人从事10多年教学经验总结出的以下学习资料，希望可以帮助大家提高答题的正确率，希望对你有所帮助，有志者事竟成！
养成良好的答题习惯，是决定高考英语成败的决定性因素之一。做题前，要认真阅读题目要求、题干和选项，并对答案内容作出合理预测;答题时，切忌跟着感觉走，最好按照题目序号来做，不会的或存在疑问的，要做好标记，要善于发现，到题目的题眼所在，规范答题，书写工整;答题完毕时，要认真检查，查漏补缺，纠正错误。总之，在最后的复习阶段，学生们不要加大练习量。在这个时候，学生要尽快到适合自己的答题方式，最重要的是以平常心去面对考试。英语最后的复习要树立信心，考试的时候遇到难题要想“别人也难”，遇到容易的则要想“细心审题”。越到最后，考生越要回归基础，单词最好再梳理一遍，这样有利于提高阅读理解的效率。另附靠前30天复习方法。
【01】
Where did novel corona-virus come from?西安疫情源头在哪
As COVID-19 is spreading throughout the world, an important question has yet to be answered: where did the virus come from?
The latest study indicated that pangolins (穿山甲) may be an intermediate host of the virus, according to Xinhua. However, bats are suspected to be the original cause.
We don’t know the source yet, but there’s pretty strong evidence that this is a bat origin corona-virus,” said Peter Dazsak, president of EcoHealth Alliance, an environmental nonprofit, according to The New York Times. “When you look at the genetic sequence (基因序列) of the virus, and you match it up with every known corona-virus, the closest relatives are from bats,” Dazsak also told CNN.
So why are bats the source of so many deadly kinds of viruses but they don’t suffer from any symptoms? As the only flying mammal (哺乳动物) with long lifespan, bats’ body temperature is high, similar to a fever. It’s this fact that may contribute to bats’ unique immune system (免疫系统) in protecting them from the ill effects of viruses.
But are bats truly to blame for the virus or should we be blaming ourselves? Whether we destroy the forests where bats live or they end up on our plate, it’s the fault of humans for decreasing the distance between us and virus-carrying bats. Bats are an important animal in our ecosystem when it comes to pollinating (授粉) many fruits such as mangoes and bananas. We need to allow them to continue pollination and keep them away from our markets and mouths.
1．Which of the following statements is true about the origin of COVID-19?
A．Genetically, the virus was found to be similar to those tested in bats.
B．Scientifically, it is confirmed that bats are the very original cause.
C．Pangolins are agreed to be the intermediate host of the virus.
D．Bats not human beings are truly to blame for the virus.
2．The reason why bats don’t bats suffer from the corona-virus is that ________.
A．bats’ low body temperature fight against the viruses.
B．the corona-virus is not deadly to bats at all.
C．bats are the closest relatives of the virus.
D．bats’ unique immune system protect them from the bad effects of virus .
3．What does the author intends to tell us in the last paragraph?
A．Humans are supposed to protect bats well.
B．Human should keep a proper distance away from bats.
C．Bats contribute to our ecosystem a lot.
D．Bats are to blame for deadly virus-carrying.
4．Where does the passage most probably come from?
A．A biography. B．A book review. C．A magazine. D．A realistic novel.
【02】
The COVID-19 and flu are both respiratory infectious diseases, with similar symptoms including fever and cough, but they are not the same.
Both the COVID-19 and flu are diseases caused by a virus. In the case of flu, the pathogens(病原体) are flu viruses, and for COVID-19, it is a novel coronavirus(新型冠状病毒).
Common symptoms for flu and novel coronavirus are nearly identical fever, cough and tiredness, sometimes sore throat and diarrhea. In severe cases, they result in pneumonia(肺炎), and even deaths in the worst cases. Flu has seasonal ups and downs. Although it can exist all year round, the virus infects more people in winter and spring. As for the novel coronavirus, there is not yet enough evidence showing how it would respond to changing weather.
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