1．(2020·天津卷7月)I cannot make my decision immediately(立即), but you will hear from me soon.
2．(2018·浙江卷6月) The cars that drove the American Dream have helped to create a global ecological disaster(灾难)．
3．(全国卷Ⅰ)Once fire and emergency(紧急情况) people arrived，Larry and the other man backed off and let them go to work.
4．I glanced at my watch and was very surprised to see that it was nearly midnight(半夜)．
Ⅲ.拓展词汇·用活
1．erupt v．(指火山)爆发；突然发生→eruption n．火山爆发；(战争等)爆发
2．occur vi.发生；出现→occurrence n．出现；发生
3．announcement n．宣布，宣告，通告→announce vt.宣布，宣称→announcer n．播音员，节目主持人
4．reliable adj.可依靠的，可信赖的→rely vi.依靠，依赖；信任，信赖
5．threat n．威胁，恐吓；可能会带来危险的人(事)→threaten vt.威胁，恐吓，危及→threatening adj.威胁的，恐吓的→threatened adj. 受到威胁的，感到危险的
