There doesn't seem to be much chance for his research group to make breakthrough in the field_____ to be much chance for his research group to make breakthrough in the field.A.This doesn't seem B.There hasn't seemed C.There doesn't seem D.It doesn't

There doesn't seem to be much chance for his research group to make breakthrough in the field_____ to be much chance for his research group to make breakthrough in the field.A.This doesn't seem B.There hasn't seemed C.There doesn't seem D.It doesn't
There doesn't seem to be much chance for his research group to make breakthrough in the field
_____ to be much chance for his research group to make breakthrough in the field.
A.This doesn't seem B.There hasn't seemed C.There doesn't seem D.It doesn't seem
为什么呢?

There doesn't seem to be much chance for his research group to make breakthrough in the field_____ to be much chance for his research group to make breakthrough in the field.A.This doesn't seem B.There hasn't seemed C.There doesn't seem D.It doesn't
C 本题考察的是形式主语的用法
首先可以排除A、B,A的this不正确,形式主语一般的只能用it ,B在时态上产生了错误
之所以在C和D中选C,是因为句末用的是“in the field”,这是个地点状语,而原句显然是讲：在那个平原上已没有任何机会能让他的考察团有所突破了.
PS：我下面说的there作形式主语只是为了便于你的理解,其实there不能说它就是形式主语
there doesn't seem to be .和 it doesn't seem to be.,there和it都可以作“形式主语”,（注意,我只是说可以,因为原题正是采用了形式主语的用法.真正用了没还得看句子本身,我下面有句例句可以供你参考）真正的主语是后面there或it所指代的内容,it通常指代具体的事物,而there则指代地点状语
这句话真正的主语是“in the field”,原句去掉there这个“形式主语”,实际上====In the field doesn't seem to be much chance for his research group to make breakthrough.
再给你看it doesn't seem to be 的例句：It doesn't seem to be a good day for him to go jogging today.真正的主语是today===Today doesn't seem to be a good day for him to go jogging.
当然了,如果把例句中today去掉,it 就可以变成真正的主语,可以自己体会一下

(There) doesn't seem to( be) much chance for his research group to make breakthrough in the field.
请注意括号内，这是一个 there be 句型，想必您已知道。

俺英文不好，嘿嘿，先声明不知道俺分析的对不对
首先排除A和D，this and it 语法上明显说不通，一读就会感觉到要用there，这种句型很多，不用赘述。习惯用法这样。
为什么不选b呢，句意是，对于他们的研究队伍来说，好像并没多大机会在这领域中有所突破。B是现在完成时态，但他们队伍的机会不管是现在还是未来都没有了，所以时态不对。...

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俺英文不好，嘿嘿，先声明不知道俺分析的对不对
首先排除A和D，this and it 语法上明显说不通，一读就会感觉到要用there，这种句型很多，不用赘述。习惯用法这样。
为什么不选b呢，句意是，对于他们的研究队伍来说，好像并没多大机会在这领域中有所突破。B是现在完成时态，但他们队伍的机会不管是现在还是未来都没有了，所以时态不对。

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首先排除A、B两个选项，通常我们见到的seem的句型都是it seems 。。。。其中的it 指代seem后面的to do 或者是that 从句，但这如果用it 的话，那么it指代的就是to be much chance....
但我们看这个句子，可以发现它真正的主语是指”在这个领域作出突破性的进展”即to make breakthrough in the field,所以用it来引导句子...

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首先排除A、B两个选项，通常我们见到的seem的句型都是it seems 。。。。其中的it 指代seem后面的to do 或者是that 从句，但这如果用it 的话，那么it指代的就是to be much chance....
但我们看这个句子，可以发现它真正的主语是指”在这个领域作出突破性的进展”即to make breakthrough in the field,所以用it来引导句子就会主语不明确，而there 来引导句子的话，主语就明确了

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因为原始句是：it seems that there isn't much chance- - - - -
再用seem 变成简单句，这时seem to be就成了复合谓语： (seem 后面加原来动词的原形be)
There doesn't seem to be much chance - -- - 。