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(4)“ 祈使句 +or+結(jié)果句 ” 相當(dāng)于 “If you don39。t…, you39。ll…”, 其中 ,or意為 “ 否則 ” 。 Hurry up, or you39。ll be late.=If you don39。t hurry up, you39。ll be late. 快點(diǎn)兒 ,否則你會(huì)遲到。 (5)but意為 “ 但是 ”, 表示轉(zhuǎn)折關(guān)系 ,丌能不 though戒 although連用。有類似用法的還有 so丌能不because, since, as連用。 He tried to catch up with others, but he failed. 他試圖趕上別人 ,但失敗了。 He got up late, so he didn39。t catch the early bus. 因?yàn)樗鸫餐砹?,所以沒有趕上早班車。 考點(diǎn)二 從屬連詞 。 常見詞 (組 )有 when, as, while, before, after, since, till, until, not…until…, as soon as。 I39。ll go to the cinema after I finish the homework. 做完作業(yè)后 ,我將去看電影。 I haven39。t heard from Tom since May. 自從五月份以來 ,我還沒有收到湯姆的信。 。 常見詞有 because, since, as。 Jane wore a raincoat because it was raining. 因?yàn)檎谙掠?,所以簡穿著雨衣。 We had better hurry as it39。s getting dark. 因?yàn)樘炜旌诹?,我們最好快點(diǎn)。 。 常見詞有 if, unless。 I39。ll help you with your English if I am free tomorrow. 如果明天我有空 ,我會(huì)幫你學(xué)英語。 You will be late unless you leave immediately. 除非你立即走 ,否則你會(huì)遲到。 。 常見詞組有 so…that, such…that。 He spoke for such a long time that people began to feel sleepy. 他講了那么長時(shí)間 ,以至于人們開始打起瞌睡來。 。 常見詞 (組 )有 though, even though/if, although, “no matter+ 疑問詞 ” 。 Although he is considered a great writer, his works ar