作业帮几道高中英语语法选择-We're late.The play has started.-I wonder how long ago _____.A did it begin B was it beginning C it began D it has begunAccording to the periodic table ,----still some elements undiscovered.A there seem to be B it seems
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几道高中英语语法选择-We're late.The play has started.-I wonder how long ago _____.A did it begin B was it beginning C it began D it has begunAccording to the periodic table ,----still some elements undiscovered.A there seem to be B it seems
几道高中英语语法选择
-We're late.The play has started.
-I wonder how long ago _____.
A did it begin B was it beginning C it began D it has begun
According to the periodic table ,----still some elements undiscovered.
A there seem to be B it seems to be C it seems that D here seem
You're saying that everone should take equal responsibility,and that is____ I disagree.
A why B where C what D how
为什么不能用C?了解表语从句的说下语法
When they first arrived at ____is now called New District twenty years ago,it was still covered with grass.
A what B which C where D that
与上面一题对比 为何不能用where?
几道高中英语语法选择-We're late.The play has started.-I wonder how long ago _____.A did it begin B was it beginning C it began D it has begunAccording to the periodic table ,----still some elements undiscovered.A there seem to be B it seems
1题.首要要清楚,begin作“开始”讲,是“瞬时动词”,即“非延续性动词”,因此,不能用进行时、现在完成时,不选BD.此时的how long ago引导宾语从句,从句中要用陈述句语序,举个例子,I wonder when it began而不是I wonder when did it began/did it began/was it beginning.因此,在AC选项中,排除A选项,选C.错题原因：不知道how long可以引导从句,对从句的引导词不熟.
2题.如果用it seems that 的话,后面是一个从句,从句中没有主语.如果加上个there is,即it seems that there is still some elements undiscovered就对了.
3题.全句是两个表语从句,即you're saying that...,and that....
disagree 与agree 搭配相同,为不及物动词,跟人是用介词with sb.,跟物用to sth.如果选what,就是disagree what,显然不对,却了个介词,如果说成to what的话,至少语法上是正确的.
4题.与3题相比,此处多了个介词at,介词＋关系代词＝关系副词.when/where/why/how为关系副词,相当于介词＋关系代词(what,which等）.请比较：
This is the place where I lived.
= This is the place at which I lived.