therefor thereof thereby 三者用法和意义是一样的吗?

Therefore,don't be afraid to be different,and be confident that your individuality may be（可能是） a magic weapon to succeed.
远亲不如近邻：A far-off relative is not as helpful as a near neighbor.
或者是：Better good neighbours near than relations far away.

总觉得句子太长了,读起来很累,断个句吧
therefore,we will stictly carry out the quality-control project,which will enable our customers to buy with confidence and use with satisfaction.

高级词汇和句型替换
So-therefore,thus,asaresult,thus,this is the reason why…
But-how ever
And-meanwhile
In my opinion-To my mind-As far as I am concerned
in other words-to put it differently
Should-be supposed to
For example-For instance
in fact-As a matter of fact
adj-what makes me feel adj is that
V and V-V,Ving
万能句型
I am greatly convinced(that)…
It can be easily proved(that)…
According to my personal experience,…=Based on my personal experience,…
Nothing in the world can delight me so much as having hamburgers in fast food restaurants.
With the rapid development of our economy,a lot of social problems have surfaced.
We can,therefore,come to the conclusion(that)…
Only with combined efforts,can we expect our hometown take on a new look in due course.If we can do as mentioned above,there can be no doubt that we can master English.
不管有多少的应试技巧,希望您牢牢记住,要稳扎稳打,学习的道路上没有捷径,踏踏实实才是王道.
++++++++
希望对楼主有所帮助 被你采纳 也增加我的分数 哈哈

therefore 就是因此的意思 后面要紧跟一个句子 后面没有逗号
so 可以说是所以的意思 后面可以加逗号 再加句子
另外,不能because...so 也不能because...therefore
在含义上,因此/所以,基本无区别
但是考试的时候 最好用therefore 别用so
因为so比较简单,显得文章水平低 而用therefore会显得你的作文更好,更容易引起阅卷人的注意,给阅卷人好的印象.

两个词的意思都是“因此”,就是拼发不同.
像"color"和“colour”

therefor 和therefore 两种拼写都对.
个人感觉,so更口语化,而therefore更书面化.另外,therefore的语气要比so强.

被留在家里 所以就是被动咯 ：）
因为我们说 I left my key at home.那么 key 做主语的时候 就应该是我的钥匙被落在家里 了 ：）

生活并不是美好的,但这就是生活

Thus不一定要加逗号,后面不一定跟句子.
I was helping my sister with her study.Therefore,I failed to pass the exam.
Air carry the virus to everywhere,thus causing the explosion of the disease.（无逗号,thus 后面不是句子）
Air carry the virus to everywhere.Thus,it causes the explosion of the disease.（逗号,thus 后面是句子） 追问：Thus与therefor可以互换吗?回答：不行thus和 therefore词性不一样 一个介词 一个连词

大体意思上都差不多 词性也差不多 我觉得选择题的话应该不会出这四个选项吧...
..就是
"thus" 比较强调原因 可以理解成"既然这样"的意思 着重"因"
"hence" 比较强调由因而出结果 着重"果" 此外hence后有时候会省略动词
"therefor" 使这四个里最常用 也是最正式的 表示"所以"
"thereby" 一般有承接关系 可以理解为"从而"
差别还是有的 不过我觉得要靠意会 这么说不知道能不能理解

都要加
what is more
besides
moreover
也要加
yet 不加

therefore [ 'ðεəfɔ:] adv.因此；所以 Therefore we are always living in conflict.所以我们总是生活在冲突中.thereby [ ,ðεə'bai,'ðεəbai ] adv.从而,因此；在那附近；在那方...

意思,用法都一样.therefor 是个古词汇,仅见于正式文体中.
therefore adv.
因此,为此,所以
They therefore can do nothing good of themselves.
所以他们靠自己是什么好事也做不成的.
故…; 由此得出
I think,therefore I am.
我思故我在.
therefor adv.
[古]因此; 由于这样
He will be paid therefor.
他将为此而得到报酬
请及时采纳,不懂继续问( 天天在线 ）

moreover ,besides,nevertheless,

他已经在这六个月了