because和because of because是连词，其后接原因状语从句或回答以why开头的问句； 而because of是复合介词，其后接名词、代词或动名词，或者what引导的名词性从句。 如 (1)___he is ill,he is absent today. (2)He is not at school___his illness. (3)He can”t come___the heavy rain. (4)We like physics___we can learn a lot of ideas. 答案：1.Because 2-3.because of 4.because 本文来源：https://www.wddqw.com/doc/615f8c5b996648d7c1c708a1284ac850ad02049e.html