She won’t lose weight______ she keeps a diet and takes exercise every day.

A.unless B.if C.because D.since

A

解析試題分析:句意:除非她每天節(jié)食,并且做運(yùn)動(dòng),否則她不會(huì)減肥。本題考查連詞,unless 除非,如果不,引導(dǎo)條件狀語(yǔ)從句;if 如果,引導(dǎo)條件狀語(yǔ)從句;because 因?yàn),引?dǎo)原因狀語(yǔ)從句;since 自從,表示時(shí)間;或既然,表示原因。根據(jù)句意可知選A。
考點(diǎn):考查連詞。

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