题目

The huge explosion at Krakatau was the result of two different factors. One was that the volcano had not broken out for some time and so at the very center of the volcano there was a huge plug of lava, which acted like a cork(塞子) in a bottle, stopping the pressure below from being released(释放). The second factor was that ocean water entered the very centre of the volcano as the explosions became more violent. This caused superheated steam to build up enormous pressure and this was finally released in the largest explosion of all on August 27, 1883. The sudden release of the pressure se三、习作。我们在充满爱的环境中成长，爷爷奶奶的爱，爸爸妈妈的爱，老师同学的爱……在 你的记忆中，哪一件与“爱心”有关的事给你留下了深刻的印象？请你写下来。注意要 叙述清楚，重点突出，以情感人。