英語翻譯Skeptics are strange a lot.some of them refuse to admit

題目：

英語翻譯
Skeptics are strange a lot.some of them refuse to admit the serious threat of human activities to the environment ,and they are tired of people disagree with them.Those people,say skeptics,spread nothing but bad news about the environment.在這裡我不清楚的是.some of them 的指代和Those people 的指代.

解答：

some of them,指部份Skeptics
Those people,指擔心環境被人們的行爲破壞的人
這樣表示一下就容易理解了：
「Those people」,say skeptics（倒裝,即skeptics say）,「spread nothing but bad news about the environment.」
引號中是skeptics說的.