by far可以修飾比較級和最高級。如果比較級或最高級前有定冠詞the，by far置于前后均可，但通常要置于不帶定冠詞the 的比較級后面，也可前置。一般作表示程度或一種語氣。

It was by far the worst team he had ever joined.

這是他迄今參加過的最差的團隊。

I agree with you that the open system is by far the best.

我同意你的觀點，開放的系統顯然是最佳的。

The last of these reasons is by far the most important.

這些理由中最后一條比其他的重要得多。

He is by far the best player on the team. 他是這個隊最優秀的隊員。

I agree with you that the experience of online shopping is by far the best.

我同意你的觀點,網上購物的體驗迄今為止是最佳的。

It was by far the worst speech he had ever made.

這是他迄今發表過的最差的演講。

By far the most important issue for them is unemployment

對他們來說最重要的無疑就是失業問題。

His third album is by far his most interesting.

他的第三張專輯是迄今最有味道的。

&39;Dottie&39; is by far his best novel to date

《多蒂》是他迄今為止最好的小說。

It is by far the best choice. 這是最好的選擇。

This is the best way by far. 這是最好的方法。

That is by far the tallest building in the city.

那是這座城市里最高的建筑物。

She is by far the better actress/the better actress by far. 她是個更為優秀的女演員。

Your paper is by far the better of the two. 兩篇論文中你的要好得多。（本句中有表示范圍的of短語，by far應前置）

Her explanation is clearer by far. 她的解釋清楚得多。

She sings by far better than others. 她唱得比別人好得多。

This safety device is by far better than that.

這個安全裝置比那個要好得多。

注意：

1. 另外by far用在比較級前面時,也可以把by省去,同樣是

“ …得多”的意思。例如:

She speaks English far better than I.

她的英語講得比我好得多。

It was better by far to be clear-headed.

保持頭腦清醒要好得多。

This applicant is by far the better than that one.

這個申請者遠比那一個好。

2.so far是個副詞詞組,用于作時間狀語,意思是“到目前為止”、“迄今，至今”,所在句子常用現在完成時態。例如

How many driving lessons have you had so far?

你到目前為止上過多少節駕駛課了？

What do you think of the show so far?

到目前為止你覺得這場演出怎么樣？

So far we have built four oil fields.

到目前為止,我們已經建立了四個油田。 I haven&39;t heard from him so far.

我至今沒有收到他的信息。

How many driving lessons have you had so far?

你到目前為止上過多少節駕駛課了？

So far, the police investigation has drawn a blank.

到目前為止警方的調查毫無結果。

They have not had a win so far this season.

他們這一賽季迄今還沒有贏過一場。

So far I have had no luck with finding a job.

我找工作一直不走運。

I&39;ve saved almost ￡ 100 so far.

我至今已經攢了差不多100英鎊了。

All talks have so far been conducted through an intermediary.

到目前為止所有的談判都是通過調停人進行的。

The police have so far failed to track down the attacker.

警方至今未能追捕到攻擊者。

He has written only a skeletal plot for the book so far.

那本書他目前只寫了一個情節梗概。