1.我正在看书,这时灯突然灭了。Iwasreading__________________________________________________.2.如果我没说让你停,你就得继续干。Iwantyoutokeepworking__________Itellyoutostop.=IwantyoutokeepworkingifIdonttellyoutostop.[答案]1.whenthelightwentout2.unless1考点1Johnwasstudyinginhisroomwhenheheardscreaming.约翰正在房间里学习,突然听到一声尖叫。when意为“这时;突然”,常用于以下结构中:bedoing...wh...