6'

That there's some good in this world, Mr. Frodo. And it's worth fighting for.
—— The Lord of the Ring II
这世上一定存在着善良，值得我们奋战到底。
——《魔戒 2 ：双塔奇兵》

there和worth都有th，前者是[ð]，后者是[θ]，舌头都要伸出来，不要读[s]

That是接着前面的话来说的，单独这一句的话，可以去掉that，只留下There's some good in this world, Mr. Frodo. 这种用法往往是为了强调，把一句拆成两句，强调的部分另起一句。
比如：I need to believe. That you are going to be fine.

worth的误用率很高，正确用法：Something be/be not worth doing.
比如： The food tastes so bad. It's not worth eating at all!