Wear a jacket outside, or you’ll catch a cold! It’s freezing out there.

到外面去時要穿夾克，否則你會感冒。外面那裏很冷。

freezing [ˋfrizɪŋ] adj. 極冷的

To avoid catching the flu, wash your hands and don’t touch your face.

為避免得到流感，要洗手，不要碰你的臉。

If you don’t wear a mask, you are more likely to catch the virus. Avoid touching your face, too.

如果你沒有戴口罩，你更有可能會感染病毒。也要避免碰你的臉。

be likely to + V (很有可能) 接原形動詞，加強語氣可以用 more likely，更有可能。

He cut his leg while hiking. It got infected and he had to go to the hospital.

流感傳播每年在秋天開始。很多人感染生病。

講解：get infected 傷口發炎，或是人感染到~ (with)

The virus is infecting a lot of people in my city. We need to be careful.

病毒正感染城市裡很多的人。我們需要小心。

講解：infect 這裡的用法是主動，主詞要用病毒，病毒正在感染到很多人。

Those people who were infected with the virus are now immune. They don’t have to get the vaccine.

冠狀病毒已經變成大流行病。全世界的每個國家都受到侵襲。

immune [ɪˋmjun] adj.免疫的；免除的

Alice contracted coronavirus while studying abroad. She was in the hospital for three weeks.

愛麗絲在國外讀書時感染了冠狀病毒。她在醫院裡住了三個星期。

contract [kənˋtrækt] v. 感染；收縮 / n. 合同；契約

講解：口說得到新冠病毒可以用 to get coronavirus 或是 to get the coronavirus

He got sick after contracting the virus. It was a mild case, so he recovered quickly and was able to go home.

他在感染病毒後生病了。它是一個輕症個案，所以他很快就復原能夠回家。

mild [maɪld] adj. 溫和的；輕微的；味淡的