VOA慢速英语:Another World, Underground: Carlsbad Caverns National Park in New Mexico

1. Inspiring. Words like these come to mind as visitors enter a world of silence, darkness and cold, almost two hundred thirty meters under the ground.

come to mind出现在脑海中,想起

例句：All the old and recent hatreds come to his mind.
      旧恨新仇一起涌上他的心头。

2.Guides explain that it did not result from the action of water and streams like other limestone caves.

result from产生于…, 由…引起

例句：Nothing had resulted from our efforts.
       我们的努力没有产生什么结果。

      His failure resulted from not working hard enough.
      他的失败是工作不够努力造成的。

3.While the adults go out at night for food, the young bats hang out in the cave for four or five weeks.

hang out呆在某处，或与某人呆在一起

例句：why do you just hang out in bars?Do you want to hang out with me instead
      你只呆在酒吧玩吗？何不跟我一起去玩？

      Girls just love hanging out in the bathroom.
      女孩子喜欢在洗手间里磨蹭。

4.It is easy to imagine that it was the bats that led ancient people to discover the cave.

it强调句型

it 引导的强调句型，通常形式为：It + be +被强调部分+ that/who +句子其他成分。这种强调句由普通陈述句转换而来，用来强调句子的主语、宾语或状语。例如：

It was Tom's mother that / who bought Tom a bicycle on his birthday.

是汤姆的妈妈在汤姆生日那天给他买了辆自行车。

It was yesterday that I met him. 我是昨天见到他的。

在此类强调句中需要注意的是：

1)不管被强调部分是单数还是复数，其前一律用it is / was 而不能用 they are /were

It is the teachers who teach me very well. 这就是教我教得很好的老师。

2)被强调部分指人时，被强调部分可用that /who来指代；被强调部分指物时，被强调部分后只能用that 指代

It is this house that has a beautiful garden. 就是这个房子有一个美丽的花园。

3)强调部分指时间和地点时，被强调部分只能用that 指代，而不能用when, where 等指代

It was yesterday that I entered the school. 我是昨天进的学校。