NASA's methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid planet.
and whether, presuming such life forms having left fossil traces to begin with, those traces can
and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces
and whether, presuming such life forms left fossil traces to begin with, those traces
and, presuming such life forms did leave some fossil traces to begin with, if they can
and, presuming such life forms to have left fossil traces to begin with, if they
whether...and whether平行,且presuming(that), 表示假设、如果……,用法类似if,后面跟从句,无需逻辑主语,排除DE;B中can those与前面句式不平行,排除;题目在乎的是those traces是否存在,而不是是否"能"存在,因此弃用can
presuming的主语不是traces吗?遗迹可以假设吗?
presuming that 可以当if用,所以 such life forms having left fossil traces to begin with 不是一个完整的句子
A. having用法不好,而且NASA是想发现这些痕迹是否”还“存在,而不是想发现这些痕迹是否“可以”存在
B. whether ......can those traces语序错误
C. 正确
1.pesuming(that), 表示假设某事发生,如果……,用法类似if,后面跟从句。同样用法的还包括providing (that),provided (that), assuming (that)
2.是those traces是否存在,而不是是否"能"存在,不需要用can
a错在having,presume和assume这类词只能接从句,c省了that
whether A and whether B平行结构,时态平行emerged vs left。whether和if连用错误,另外if有歧义,表是否应当用whether
1.pesuming(that), 表示假设某事发生,如果……,用法类似if,后面跟从句。同样用法的还包括providing (that),provided (that), assuming (that)
2.是those traces是否存在,而不是是否"能"存在,不需要用can
C:approach has not answered questions of 【whether biological life forms ever emerged on Mars】 and 【whether, presuming such life forms left fossil traces to begin with, those traces still exist in some moist recesses of the cold and arid planet.】✔
#whether those traces still exist in some moist recesses of the cold and arid planet.#
A:approach has not answered questions of 【whether biological life forms ever emerged on Mars】 and 【whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid plane.】
having left❌
can 重复
考点:
1.平行
2.主谓
A:多了一个动词can
B:多了一个动词can,redundant
D:and前后句式不平行
E:and前后句式不平行
whether...and whether平行,
且presuming(that), 表示假设、如果……,【用法类似if,后面跟从句,无需逻辑主语】,排除DE;
B中can those与前面句式不平行,排除;题目在乎的是those traces是否存在,而不是是否"能"存在,因此弃用can
C,answer the question of whether those traces still exist , presuming such life forms left fossil traces to begin with.
presuming(that), 表示假设某事发生,如果……,用法类似if,后面跟从句。它不是伴随状语,是个从属连词,跟的是句子,presuming本身没有逻辑主语。
同样用法的还包括providing (that),provided (that), assuming (that)
请毕老师帮忙看下对不对~
A错在having:
presuming(that), 表示假设某事发生,如果……,用法类似if,后面跟从句。它不是伴随状语,是个从属连词,跟的是句子,presuming本身没有逻辑主语。
同样用法的还包括providing (that),provided (that), assuming (that)
这个b选项就算是对的,can也必须放在traces后面而不是提前
C,answer the question of whether those traces still exist , presuming such life forms left fossil traces to begin with.
presuming(that), 表示假设某事发生,如果……,用法类似if,后面跟从句。它不是伴随状语,是个从属连词,跟的是句子,presuming本身没有逻辑主语。
同样用法的还包括providing (that),provided (that), assuming (that)
presuming相当于if的用法,无需逻辑主语也无需that,后面直接加句子即可
can有歧义,因为大家在乎的是这些trace是否还exist而不是can exist
原句中whether biological life forms ever emerged on Mars作为定语修饰question,and后面连接了另一个question的定语,应该用whether而不是if
根据语意,应该是这些traces是否依然存在着,而不是依然有能力存在着。因此can是赘余的
AC对比,can(实意成分的缺失)
Whether的存在就已经在表示这些痕迹能否存在
这里的can并没有缩小范围,所以赘余
不是伴随状语,而是条件状语,类似的还有 provided (that),assuming (that),词性是conj,引导条件状语从句。
whether可以用于引导宾语从句,但是if不可以