Unit 3 The Million Pound Bank Note
⑤find it hard to imagine⑥found the lights on
14. the next morning i’d just about given myself up for lost when i was spotted by a ship.
第二天早上，我正感到絕望的時候，一艘船發現了我。
句中的when表示“這時，就在這個(那個)時候(=and then；and just then；and at that time)”，當when作此意講時，通常和正在發生的或即將發生的動作連用，構成：be doing ...when .../be about to do ...when ...的句型。其中when引導的從句要用一般過去時。
i was wandering through the streets when i caught sight of a tailor’s shop.
我正在街上閑逛，(這時)忽然看見了一家服裝店。
we were having a meeting when someone broke in.
我們在開會的時候，有人突然闖入。
we were about to set off on our way when it suddenly began to rain. 我們快要動身離開的時候，天突然下起了雨。
高手過招
單項填空
jasmine was holidaying with her family in a wildlife park
she was bitten on the leg by a lion.
(•12•河南開封檢測)
a. when b. while c. since d. before
解析:選a。when在本句中為連詞，相當于and just then, and just at that time, 意為“就在那時”。引導一個忽然出現的動作。
句意為：jasmine 正在和她的家人在野生動物園度假時，她被獅子咬傷了腿。