1. 俄罗斯是一个自然资源丰富的国家。
没问题
2. 所有的发展需要开发新的技能。
所有的发展都需要先有新技能的开发。
(I agree the other teacher’s translation, but my translation is based on not using new words that might beyond the student’s current level.)
3. 我希望一天能搬家一个气候温暖的国家。
我希望(有)一天能搬到一个气候温暖的国家(去)
如果你很想用"搬家"两个字,那就得说"搬家搬到….."
4. 这次开会我围绕着有名的科学家
这句话的意思不清楚。I suppose you meant “I was surrounded by famous scientists”
If so, then it should be“这次会议有很多科学家参加”.”
“To be surrounded”cannot be translated, unless you were their focus and everyone were trying to approach you.
如果我翻译的不是你想说的意思,请再告诉我。