cheer的形容詞用英語怎麼說?

例句:

We all cheered as the team came on to the field.

球隊入場時我們都爲之歡呼。

A great cheer went up from the crowd.

羣衆爆發出一陣熱烈的歡呼聲。

The results of the test were very cheering.

化驗結果令人歡欣鼓舞。

You need something to cheer you up ─ I know just the thing!

你需要點什麼使你高興起來,我知道什麼正合你的需要。