这几句英文句子哪里不对啊?The research that Prof Kristoph conducted it in the early 70's constituted a major breakthrough in the area of the thermodynamics.The scientist was delighted to receive a prize which it is given to the most renown

这几句英文句子哪里不对啊?The research that Prof Kristoph conducted it in the early 70's constituted a major breakthrough in the area of the thermodynamics.The scientist was delighted to receive a prize which it is given to the most renown
这几句英文句子哪里不对啊?
The research that Prof Kristoph conducted it in the early 70's constituted a major breakthrough in the area of the thermodynamics.
The scientist was delighted to receive a prize which it is given to the most renowned researchers for contributing substantially to the science.
A fellow researcher experienced the same difficulty while conducting a similar experiment contacted Professor Schmitt to discuss possible solutions
There are other scientists consider formulating a hypothesis is untestable to be a waste of time and resources.

这几句英文句子哪里不对啊?The research that Prof Kristoph conducted it in the early 70's constituted a major breakthrough in the area of the thermodynamics.The scientist was delighted to receive a prize which it is given to the most renown

It 多余,要去掉.这是个定语从句,research为先行词,是 conduct的宾语,不需再用it作宾语了.

it 多余,要去掉.which引导的定语从句,做主语了,It重复了.

Contacted 前要加个and 吧.因为前个句子的谓语是experienced,后面又有contactedw作谓语,用and表示是两个句子,主语相同.

scientists后面加一个who,整个句子为there be结构,然后有一个个Who引导的壮语修饰科学家.

The research that Prof Kristoph conducted （it） in the early 70's *has* constituted a major breakthrough in the area of the thermodynamics.
The scientist was delighted to receive a prize which （it）...

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The research that Prof Kristoph conducted （it） in the early 70's *has* constituted a major breakthrough in the area of the thermodynamics.
The scientist was delighted to receive a prize which （it） is given to the most renowned researchers for contributing substantially to the science.
　　A fellow researcher experienced the same difficulty while conducting a similar experiment #which Professor Schmitt was contacted to discuss possible solutions.#
There are other scientists consider *to* #formulate# a hypothesis *which* is untestable to be a waste of time and resources.
是考你定语从句的用法吧。希望对你有用
（）中是应删除的，* *中是应添加的，# #中是应修改的

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1. 去掉conducted后的it (前面已有research)

2. 去掉which后的it (which为从句主语)

3. 主句动词是contacted，须将experienced改为experiecing, 使experienced the same difficulty while conducting a similar ...

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   1. 去掉conducted后的it (前面已有research)

   2. 去掉which后的it (which为从句主语)

   3. 主句动词是contacted，须将experienced改为experiecing, 使experienced the same difficulty while conducting a similar experiment变为定语

   4. 动词太多，关系不清。主句是there are scientists，其他则为从句，要把关系和用词理清楚。scientists后加who, hypothesis后加which
      

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