1 . 阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

According to American news, a new study has found that the risk of     1     (die), hospitalization and serious health issues from COVID-19 increases with reinfection regardless     2     vaccination (接种疫苗).

The study examined U.S. Department of Veterans Affairs data     3     (collect) from March 1, 2020 through April 6, 2022. It     4     (include) information on 443,588 patients with one SARS-CoV-2 infection, 40,947 with two or more infections, and 5.3 million     5     were not infected. Most of the study subjects     6     (be) male.

“Reinfection with COVID-19 increases the risk of     7     acute (急性的) outcomes and long COVID,” said Dr. Ziyad Al-Aly of Washington University School of Medicine in St. Louis. He added that this was clear “in unvaccinated, vaccinated and boosted people.”

Reinfected patients had a     8     (high) risk of hospitalization and life safety compared with individuals infected only once. The patients also had increased risks for     9     number of other health problems, the study, reported in Nature Medicine, found. The problems affected the lungs, heart, blood, kidneys,     10     (bone) and muscles. Reinfection also increased the risk of mental health, brain and nerve disorders.

2 . It was bad enough when COVID- 19 closed schools in Philadelphia, US, in March. Like a lot of students, Makyla Linder, 16, found herself getting bored. So she started watching baking videos and shows on TV and online. Soon, she started baking on her own.

Cupcakes and chocolate-covered strawberries were her first creations.

“I tried them on my friends when they came to my house,” Linder sad. “I also tried them on my family. They said my creations were good.”

For most children, that would have been enough. But Linder had bigger ideas. She asked her mom - what if she started selling her baked goods?

With the help of her mother, Linder got more baking supplies and equipment. She started taking orders online. More people started hearing about her business. Linder also started giving out business cards to make her company more well-know.

She also improved her baking as time went on. She researched new recipes (食谱) and learned good baking skills. She now sells chocolate-covered cookies, chocolate apples and banana pudding. She has some customers who have returned to her several times. They say her prices are good. She charges $15 for a dozen cupcakes or cake pops.

When school reopened in September, Linder had to focus more on her studies. “I wanted to do both, but I understand that school is much more important right now,” she said. However, she still watches cooking shows to get new ideas for her business.

1. What special thing did Linder do after COVID-19 broke out?

A．She started a baking business.	B．She made her own cooking show.
C．She invited friends over for parties.	D．She gave online baking lessons.

2. What do people think about Linder’s creation?

A．They are creative.

B．They are delicious.

C．They are well-known.

D．They are not big enough.

3. What opinion do her returning customers have?

A．Linder is good at making money.	B．Linder spends a lot of money.
C．Linder’s baked goods aren’t expensive.	D．Linder’s baked goods are too cheap.

4. What do we know from the story?

A．Linder didn’t return to school this year.	B．Linder is proud of her studies.
C．Linder will open a new bakery soon.	D．Linder will keep studying baking.