The Temperature Is Dropping The Temperature Is Dropping

Temperature Dropping / Dropping Temperature / Plummeting Temperature Temperature Dropping / Dropping Temperature / Plummeting Temperature

In English, for a two-word title, an adjective+noun combination feels more natural than noun+verb.

TA drop in temperature Dropping A drop in temperature

Today it is really cold in Shanghai. Today it is really cold in Shanghai.

Today it is really cold in Shanghai. Today it is really cold in Shanghai.

Adding “it” is idiomatic, although there’s nothing wrong with your original grammatically.

TodayIt is really cold in Shanghai today. It is really cold in Shanghai today.

Today it is really cold in Shanghai. Today it is really cold in Shanghai.

Today, it is really cold in Shanghai. Today, it is really cold in Shanghai.

The temperature has been dropping since last night. The temperature has been dropping since last night.

The sudden change in weather always catches themy body off guard. The sudden change in weather always catches my body off guard.

The sudden change in weather always catches themy body off guard. The sudden change in weather always catches my body off guard.

I changed it from "the" to "my" because it seemed like you were talking about your own body in particular, rather than the human body in general as "the" implied.

TheA sudden change in weather always catches the body off guard. A sudden change in weather always catches the body off guard.

Since you’re making a statement about sudden changes in general, “a sudden change” feels more natural to me than “the.” “The body” is fine, referring to everyone’s bodies as well as your own.

The sudden change in weather always catches themy body off guard. The sudden change in weather always catches my body off guard.

Now, my throat is a bit sore. Now, my throat is a bit sore.