1.believe sb 含义是相信某人的话；相信某人所为
I don't believe you!
我不相信你的话！
I believe in you,but I don’t believe you this time.
我对你是信任的，但这件事上面，我不信你说的。
He did not sound as if he believed her.
他听起来似乎并不相信她。
believe sth含义是相信这事是真的，相信这话是真的
Don’t believe a word of it.
不要相信关于那件事的每一个字。
I believe what he said ,but I don’t believe in him.
我相信他的话，但是我不信任他这个人。
I believe in what he said.
我愿意接受他的话。（我愿意支持他的话。但是，他的话不一定是对的，或是假的，但我支持。）
另外believe为被动语态时，习惯后接不定式：
You are believed to be honest.
你的忠诚是值得信任的。
She is believed to have banked £ 10 million in two years.
据信她两年内在银行存了1000万英镑。
The vases are believed to be worth over$ 20 000 each.
那些花瓶据估计每个价值都超过2万元。
The new policy is believed to be the first scheme to offer protection against an illness.
这份新的保险单被认为是首个承保疾病风险的保险方案。
The attack is believed to have been carried out during the early morning hours
据信进攻是在清晨时发起的。
Washington and Moscow are believed to have similar views on Kashmir
据信华盛顿和莫斯科在克什米尔问题上的看法相似。
The Queen is believed to earn somewhere between seven million and one hundred million pounds
据说女王的收入大约在700万至1亿英镑之间。
The newspaper is believed to have been unprofitable for at least the past decade.
据信这家报纸至少在过去10年中都没有盈利。
The Prime Minister is believed to have ruled out cuts in child benefit or pensions
据信首相已经排除了削减儿童救济金或养老金的可能。
At least 150 people are believed to have died after two days of torrential rain deluged the capital. 连续两天的滂沱大雨致使首都积水成灾，据信至少已有150人死亡。
300 civilians are believed to have been massacred by the rebels
据信有300位平民被叛乱分子残杀。
She is believed to be the youngest winner in the country.
她被认为是该国最年轻的冠军。
He is believed to have worked unrecognised as a doorman at East End clubs
据信他在伦敦东区的夜总会当过看门人而没被认出来。
Her text is believed to be the oldest surviving manuscript by a female physician.
她的文献据信是现存最古老的、由女性内科医生留下的手稿。
The Amazons were believed to have been the first to tame horses.
据说亚马孙人最先驯化了马。
Humans are believed to be tied to nature.
人们认为人类与自然息息相关。
2. believe后接that从句，含义为相信……；把（某事）当真；认为有可能；认定；看作；对某事吃惊或恼怒；原以为
I do believe you're right.
我的确相信你是对的。
He refused to believe (that) his son was involved in drugs.
他不愿相信他的儿子沾染毒品。
Police believe (that) the man may be armed.
警方认为那个人可能携有武器。
Experts believe that the coming drought will be extensive...
专家们认为即将发生的旱灾将侵袭大片地区。
She believed she would die in the snake-infested sand dunes. She said: 'It was hell on earth'.
她觉得自己会死在遍地毒蛇的沙丘中。她说：“这简直是人间地狱。”
The party believes (that) education is the most important issue facing the government.
该党把教育视为政府面临的最重要的问题。
She couldn't believe (that) it was all happening again.
她简直无法相信整件事又在重演。
It is believed that it began in England in the early nineteenth century ．
据说，它始于19世纪初的英国。
It is believed that the couple have left the country.
据信那对夫妇已经离开了这个国家。
I believed that in civilized countries, torture had ended long ago.
我原以为在文明国家，严刑拷打早已销声匿迹。
3. believe in sb\单位，党派，集团
信赖；信任；相信某人会成功
I believe in you,but I don’t believe you this time.
我对你是信任的，但这件事上面，我不信你说的。
They need a leader they can believe in.
他们需要一个可以信赖的领导。
We believe in our government.
我们信任我们的政府。
From start to finish he believed in me, often more than I did myself.
他自始至终都相信我，而且时常超过我对自己的信任。
If you believe in yourself you can succeed.
只要自信，就能成功。
4. believe in sth
认为某事好（或对、可接受）；支持，赞成，崇尚
I don't believe in hitting children.
我不赞成打孩子。
She did not believe in indulging the children with presents.
她认为不能惯着孩子们要什么就给什么。
Don't you believe in equality between men and women?
难道你不相信男女平等吗？
He believes in doing plenty of exercise.
他相信多做运动有好处。
We believe in the power of prayer.
我们相信祈祷的力量。
They don't believe in marriage.
他们不相信婚姻。
He believes deeply in the need for a tax reform.
他深信有必要进行税收改革。
He believed in giving his staff scope for initiative
他认为应给员工提供发挥主动性的机会。
He believed in political activism to achieve justice.
他相信通过政治激进主义可以赢得正义。
I still believe in the notion of an egalitarian society.
我仍然相信构建人人平等的社会的理念。
I believe in the institution of marriage.
我相信婚姻制度。
I believe in progression, in taking risks, in never getting stale.
我崇尚进取、冒险和永不倦怠。
He himself believed in freedom, so much so that he would rather die than live without it.
他非常崇尚自由，不自由，毋宁死。
Jack believed in finding happiness wherever possible
杰克认为应该及时行乐。
He believed in marital fidelity.
他认为婚内应该忠诚。
He believed in peace.
他相信和平。
I've always believed in living life to the full.
我总是相信生活要尽量充实。
5. believe in sb/sth
相信某人（或事物）的存在
Do you believe in God?
你相信有上帝吗？
Do you believe in ghosts?
你相信有鬼吗？
Do you believe in a life hereafter?
你相信有来世吗？
Do you believe in a cosmic plan?
你相信冥冥中的安排吗？
It would be hypocritical of me to have a church wedding when I don't believe in God.
我不信上帝却到教堂举行婚礼，那就是我的虚伪了。
I believe in life after death.
我相信人死后生命会以某种形式存在。
Do you believe in magic?
你相信魔法真的存在吗？
They believe in magic
他们相信巫术。
Love songs trick us into believing in knights in shining armor.
情歌哄骗我们去相信有勇救美人的英雄。