Question

17．不要獨自外出，否則你可能會迷路．
Don't go out alone，or you will lose your way．

Answer 1

分析 Don't go out alone，or you will lose your way．

解答 答案：Don't go out alone，or you will lose your way．用or表示否則，故用祈使句+or+陳述句來表達，否定祈使句don't+動詞原形，go out alone獨自外出，陳述句部分表達的是將來的事情用一般將來時will+動詞原形，lose one‘s way迷路，主語you，故答案是Don't go out alone，or you will lose your way．

點評 祈使句，+and+陳述句：在這里祈使句相當(dāng)于if 引導(dǎo)的條件狀語從句（但此時去掉and）．
Give blood （ if you can ）and many lives will be saved．
還可以用簡短的形式表示，即省略動詞．
Give me one more hour，and I'll get the work finished．（祈使句）
═One more hour，and I'll get the work finished．（名詞短語）
═If you give me one more hour，I'll get the work finished．（if條件句）
═If I am given one more hour，I'll get the work finished．
═Given one more hour，I'll get the work finished．
祈使句，+or+陳述句
Listen to the teacher carefully in class，or you can't catch what he is saying．