She can't help _____ the house because she's busy making a cake.
A．to cleanB．cleaningC．cleanedD．being cleaned
A
此題容易誤選B，簡單地套用can't help doing sth這一結(jié)構(gòu)。其實此題應選A，注意以下兩個結(jié)構(gòu)均可用，但是含義不同：can't help doing sth =禁不住做某事，情不自禁地做某事；can't help to do sth =不能幫助做某事。前者為引申用法，一般辭書均將其作為固定搭配列出來，許多老師對此也比較強調(diào)，從而就使同學們形成了思維定勢；而后者為help表示“幫助”時的本義用法，因同學們平時對此不大注意，一看到上面的試題馬上就聯(lián)想到can't help doing sth這一結(jié)構(gòu)，從而誤選了B。
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