(高考模拟+名校真题)
专题51 新冠变异病毒奥密克戎毒株
（2022·江西·南昌二中一模）In their letters to Santa Claus, most kids ask for toys, dolls or maybe a new Xbox. All Jonah Simons wanted was a coronavirus cure to save the world. That was last year. This holiday season, the 10-year-old Florida boy is back with a different request for Santa.
“Dear Santa, it’s Jonah. Do you remember me? I was the one who asked for a covid cure,” he wrote in a letter addressed to the North Pole and shared with CNN. “Thank you so much for the vaccine! You helped save lives. This year, can I please have a Santa costume to spread your joy around the world?”
billie jean伴奏With a relentless virus and threats of the Omicron variant still plaguing a weary nation, Jona
h has big plans for the Santa suit. “I want to wear it and go around the neighborhood and spread Santa’s joy, asking people what they want for Christmas,” the fifth-grader said.
Jonah turned 10 in July, and instead of gifts he asked his family and friends to donate to St. Jude Children’s Research Hospital. His birthday effort raised $1,000 in donations from family and friends all over—even his favorite employees at the local Publix store, his mother says.
He also marked his birthday by donating his hair to Locks of Love, the charity that makes wigs for kids with cancer or other medical conditions. During a year of lockdown, he teamed up with some friends and grew out his hair to nine inches.
Jonah’s good deeds are not limited to birthdays. He works to help his community all year, including donating and sorting food for the homeless with the organization Feeding South Florida, and packing holiday gifts for children.
1．What does Jonah want as a Christmas gift this year?
A．A covid cure. B．Toys and dolls.
C．Anew Xbox. D．A Santa suit.
2．Which one of the following doesn’t belong to the good behaviour of Jonah?
谭松韵刘昊然再次合作A．Donating his hair to a charity.
B．Sending his birthday gifts to St. Jude Children’s Research Hospital.
C．Wrapping holiday gifts for kids.
D．Contributing food to the homeless.
3．Which of the following best describes Jonah?
A．Kind and courageous. B．Generous and brave.
C．Caring and helpful. D．Friendly and innocent.
4．What can we infer from the passage?
A．Jonah didn’t realize his wish last year.
不要离开 t-araB．The coronavirus is still not under complete control.mp4mv下载
C．Jonah raised $1,000 from his family and friends all over.
D．Jonah wants to wear a Santa suit and go around the neighborhood and spread Santa’s joy.
（2022·江苏·高三开学考试）The Omicron Covid variant has been found to multiply about 70 times quicker than the original and Delta versions of coronavirus in tissue samples taken from the bronchus(支气管), the main tubes from the windpipe to the lungs, in laboratory experiments that could help explain its rapid transmission.
The study, by a team from the University of Hong Kong, also found that the new variant grew 10 times slower in lung tissue, which the authors said could be an indicator of lower disease severity.
Michael Chan, who led the work, said the result needed to be interpreted with caution because severe disease is determined not only by how quickly the virus replicates(复制) but also by a person’s immune response. “It is also noted that by infecting many more people, a very infectious virus may cause more severe disease and death even though the virus itself may be less pathogenic(致病的),” he said. “Therefore, taken together with our recent studies showing that the Omicron variant can partially escape immunity from vaccines and past infection, the overall threat from the Omicron variant is likely to be very significant.”
Jeremy Kamil, an associate professor of microbiology and immunology at Louisiana State University Health Shreveport, pointed out that Delta, which turned out to be more pathogenic, showed a similar pattern of replicating more slowly in the lungs. “These authors found Omicron replicates fantastically well--even far better than either Delta or the original virus--in bronchial tissue,” Kamil said. “This could in some ways contribute to an advantage in transmission between people.”
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