1．—Do you think the weather will be all right this summer?
—No, _____ we are lucky. The newspaper says it'll be very hot anyway.
A. if B. though C. unless D. as
【答案】C
【解析】连词辨析。Unless=if…not除非，如不；no代替一个否定句。结合句意可知C正确。句意：—你认为今年夏天的天气会好吗？—如果我们运气不好，今年夏天的天气会很不好。报纸上说将会很热。
