8．________ it is so hot，I guess we can't do anything until after dark．（　�。�
A．In caseB．Now thatC．Even ifD．As though

分析 由于天氣太熱，我想我們只有在天黑后才能干活了．

解答 答案：B 題干中it is so hot是I guess we can't do anything until after dark的原因；in case萬(wàn)一，now that既然，由于，even if即使，as though好像；句意表達(dá)的是因果，是一個(gè)原因狀語(yǔ)從句．故選B．

點(diǎn)評(píng) 從屬連詞是連詞的一種，用來(lái)引導(dǎo)名詞性從句和狀語(yǔ)從句．大致可分為三大類：that （無(wú)詞義，不做成分）if，whether （表達(dá)是否的意義，但不做句子成分）； 連接代詞：who，whom，whose，what，which，whatever，whoever，whichever（有詞義，在句子中可作主語(yǔ)、表語(yǔ)、賓語(yǔ)）；連接副詞：when，where，why，how，how many，how long，how far，however，whenever，wherever （有詞義，作從句的狀語(yǔ)）．

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