cheer (for sb/sth)
The crowd cheered for the home team.
人群为主队欢呼。
使高兴；使振奋；安慰
cheered — past of cheer
为…欢呼；喝彩；呐喊助威；对…感到高兴；支持；欢迎；使高兴；使振作；常与 up 连用。；注入活力、勇气、生气或希望；鼓舞；安慰或抚慰。；用欢呼或喊叫来喝彩或鼓励。
To make someone feel happier or more hopeful; to comfort or encourage.
常与 up 连用：cheer somebody up
使高兴；使振作；常与 up 连用。
To gladden; to make cheerful; often with up.
注入活力、勇气、生气或希望；鼓舞；安慰或抚慰。
To infuse life, courage, animation, or hope, into; to inspirit; to solace or comfort.
用欢呼或喊叫来喝彩或鼓励。
To applaud or encourage with cheers or shouts.
对(某事物)感到或表现出热情。
To feel or express enthusiasm for (something).
一般现在时
She cheers for her favorite team every game.
她每场比赛都为最喜欢的队伍加油。
一般过去时
The crowd cheered loudly when the goal was scored.
进球时人群大声欢呼。
现在完成时
He has cheered up after hearing the good news.
听到好消息后，他高兴起来了。
规则动词：原形加-ed构成过去式和过去分词。
She cheered up after hearing the good news.
听到好消息后，她高兴起来。
用法提示：cheer up 为动词短语，表示‘变得高兴’，过去式cheered体现动词用法。
The crowd cheered loudly when the team scored.
当球队得分时，人群大声欢呼。
用法提示：cheer 作为不及物动词，表示‘欢呼’，过去式cheered。
His friends were cheering him on during the race.
他的朋友们在比赛中为他加油。
用法提示：cheer on 为动词短语，表示‘给…加油’，过去进行时were cheering体现动词用法。
The crowd cheered for the home team.
人群为主队欢呼。
“up”不可省略。
She sent flowers to cheer her friend up.
她送花让朋友振作起来。
We cheered the runners on from the sidelines.
我们在场边为跑步者加油。
更通用，不一定通过呼喊，可用于各种场合
通常指鼓掌，也可指叫好，常用于团队或公开活动
语气最强，常指公众的盛大欢迎或赞誉，较少用于个人互动
侧重于提升情绪和信心，常用于支持困境中的人
grammar · medium
易错句子The fans cheered to the team.
正确表达The fans cheered the team.
中文学习者受中文结构影响，用介词“to”表示动作的对象，但英文中“cheer”作为及物动词或与"for"搭配表示对…欢呼。
grammar · medium
易错句子I tried to cheer him, but he was still sad.
正确表达I tried to cheer him up, but he was still sad.
“cheer”单独使用时通常表示“欢呼”，而“cheer up”才是“使…振作”的固定短语，需要加上副词“up”才能表达让某人开心起来的意思。
与cheer（欢呼）相对，表达不赞成或嘲笑
与cheer（鼓励）相对，打击积极性
与cheer（喝彩）相对，表达轻蔑或嘲弄
与cheer（使振奋）相对，情绪低落
cheer 侧重通过欢呼、喝彩给予支持，encourage 侧重通过言语或行动给以信心或支持
cheer 是动词或名词，表示振奋或欢呼；cheerful 是形容词，描述人心情愉快
使振作起来
A hot meal will cheer you up after a long day.
漫长的一天后，一顿热饭会让你振作起来。
为...加油
The crowd cheered for the home team.
人群为主队加油。
为...鼓劲
His friends cheered him on during the race.
他的朋友们在比赛中为他鼓劲。
大声欢呼
The fans cheered loudly when the goal was scored.
进球时球迷们大声欢呼。
疯狂欢呼
The crowd cheered wildly as the band took the stage.
乐队登台时人群疯狂欢呼。
由衷地欢呼
Everyone cheered heartily at the end of the performance.
演出结束时每个人都由衷地欢呼。
振作起来
Cheer up! Everything will be fine.
振作起来！一切都会好起来的。
为...加油
The crowd cheered on the runners.
人群为跑步者加油。
为...喝彩
We all cheer for our team.
我们都为我们的队伍喝彩。
振作起来，睡眼惺忪的简。
When my friend was feeling down, I sang 'Cheer up, sleepy Jean' to cheer him up.
当我朋友情绪低落时，我唱了‘振作起来，睡眼惺忪的简’来鼓励他。
振作起来，查理。
Willy Wonka said 'Cheer up, Charlie' to cheer the boy up.
威利·旺卡说‘振作起来，查理’来鼓励那个男孩。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.