11．There is nothing wrong with surfing the Internet _____ it doesn't keep you from doing
something important．（　�。�
A．untilB．unlessC．thoughD．if

分析 上網(wǎng)沒(méi)有錯(cuò)，只要不耽誤你做重要的事．

解答 答案：D 題干中前面There is nothing wrong with surfing the Internet表達(dá)肯定的意思，后面it doesn't keep you from doing something important表達(dá)也是肯定，可以知道是條件關(guān)系．故選D．

點(diǎn)評(píng) 連詞用來(lái)連接從句．按照類(lèi)型可分為：從屬連詞，連接代詞，連接副詞．學(xué)習(xí)時(shí)，要注意區(qū)分和掌握．本題考查的是條件狀語(yǔ)從句．

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