選C,Having suffered from heart trouble for years,Professor White has to take some medicine with him wherever he goes.
句意是：由于身患心臟病多年,懷特教授無論到哪都必須隨身攜帶著藥品.
這題考的知識(shí)點(diǎn)是非謂語的搭配選擇,由于后面的句子Professor White has to take some medicine with him wherever he goes.主謂賓已經(jīng)齊全,且前面沒有關(guān)聯(lián)詞,所以前面不能再是一個(gè)句子,只能是非謂語充當(dāng)狀語.
選C的原因是suffer from的主語是主動(dòng)者,即不必要再需要被動(dòng)語態(tài),固定搭配是sb.suffer from sth.所以排除A和D.又因?yàn)楹竺嬗衒or years,for的出現(xiàn)是完成時(shí)的標(biāo)志,所以要用到完成時(shí)的助動(dòng)詞have.