作业帮英语语法wich,that what my brother drove his car down the street at_ i thought was a dangerous speed.空里填what,为什么不能用what 和that
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英语语法wich,that what my brother drove his car down the street at_ i thought was a dangerous speed.空里填what,为什么不能用what 和that
英语语法wich,that what
my brother drove his car down the street at_ i thought was a dangerous speed.
空里填what,为什么不能用what 和that
英语语法wich,that what my brother drove his car down the street at_ i thought was a dangerous speed.空里填what,为什么不能用what 和that
指speed,修饰a dangerous speed,作为at的宾语,相当于i thought which was a dangerous speed,其中i thought 是插入语,可以省略不看,补充完整的句子是my brother drove his car down the street at a speed .【which (i thought ) was a dangerous speed】.后面这个从句整个指的就是speed的,作为at的宾语同时又作为后面句子的主语.
which可以引导从句，作为从句的先行词。what不行。
that也可以引导从句，但是句中有个at，不能是at that，只能是at which。后面再加从句。
填which
是定语从句，现行词是car
因为是at speed的搭配
at which
定语从句不能用what
有了介词，不用at that
i thought是插入语，不去看他
应该填what，不能用which和that。
1、at后面需要填名词性成分，如果有先行词后面可用which，但本题没有。
2、at后面需要填名词性成分，即便有先行词，在介词at后面也不能用that。
3、at what = at the speed which/that。
My brother drove his car down the street at wh...
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应该填what，不能用which和that。
1、at后面需要填名词性成分，如果有先行词后面可用which，但本题没有。
2、at后面需要填名词性成分，即便有先行词，在介词at后面也不能用that。
3、at what = at the speed which/that。
My brother drove his car down the street at what I thought was a dangerous speed.
My brother drove his car down the street at a speed which I thought was a dangerous speed.
【04上海春38，标准答案是what】
The other day，my brother drove his car down the street at ______ I thought was a dangerous
speed. A.as B.which C.what D.that
答案 C
解析 at后接宾语从句，当宾语从句中缺少主语、宾语或表语时，要用what引导。此句中what作宾语从句的主语。
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