题干

根据以下材料,回答下列问题。
沧海桑田——西之新岛的诞生
在日本伊豆诸岛之南,小笠原群岛以西的海域中,有一座小岛,名叫西之岛。这座小岛以前的面积并没有这么大。你知道这是为什么吗?   
1973年4月的一天,这里的海底火山大爆发,海面上腾起了烟柱和水柱,海水大面积变色。两个月后,变色海域露出了1米多高的岩礁,可在几天以后,岩礁又消失了。同年9月,海底火山再次爆发。不久,火山口露出水面,在海面上形成了100多米长的小岛,因为这座小岛在西之岛附近,所以人们把它命名为西之新岛。新岛诞生之后,一直在移动,4个月后,这座新岛和原有的西之群岛连在一起,成为今天地图上的西之岛(或新岛)。
(1)日本是一个多火山、地震的国家。火山喷发留给人们的是恐惧,那么,我们应该如何看待火山喷发对人们生活和生产所产生的影响?
(2)西之岛的诞生,说明了地形是不断变化的吗?你还能举出一个或几个例子吗?
(3)西之岛的诞生,主要是由地球内部力量还是外部力量引起的?它们各自还有哪些表现形式?

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答案(点此获取答案解析)

(1)火山、地震会造成房屋、道路等设施的损毁甚至危及人的生命安全。火山喷发出的火山灰会形成肥沃的土壤,在非火山活动期可被人类利用。火山活动还可能形成矿石。
(2)是,如喜马拉雅山在原来是一片汪洋。
(3)内部力量。内部力量可表现为地壳运动、火山、地震。外部力量表现为流水、风、海浪等作用

同类题2

任务型阅读

    We all wish we had just a bit more time. Just think what you could do with an extra hour or two each day: you could finally stick to an exercise routine, or spring-clean the house, or write your novel, or learn the guitar and so on. ____ But I can help you find more hours in your day for the things that really matter.

1). Get Out of Bed Earlier

If you normally get up at 7: 30 a. m. , try getting up at 7: 00 a. m. That half-hour might not sound like much, but it could be time that you use to exercise, to read that book you've been meaning to finish. ____

2). Do the Important Tasks First

    Once you get to work, get the important ones done first (not the easy ones, or even the urgent ones). You can afford to spend at least an hour working on big, important tasks rather than on all those little urgent ones. ____The urgent tasks will still get done, and you won't miss the important ones.

3). Reduce Interruptions

    If colleagues have a habit of hanging around your desk to chat, or if the phone is constantly ringing, you might find that it takes you half the day to finish a simple task like writing a letter. Constant interruptions don't just eat up time, they also break your concentration.

    When you've got a big task to focus on, let your calls go to voicemail. ____Wearing headphones makes it less likely that people will try to strike up a conversation.

4). ____

    A few minutes chatting, browsing the web, and so on, can easily turn into hours of wasted time over the course of a day. When you're working, work. If your concentration is slipping, take a proper break: go and get a glass of water, or stretch your legs a bit. And if you're facing a difficult task, try breaking it into small steps or stages so that it's easier to deal with.

A. Or simply to get your day off to a calm and organized start.

B. I can't magically make all your days 25 hours long.

C. Would you want me to make your day longer?

D. Take Breaks When Necessary

E. If you have an office door, close it.

F. If you work like this, you'll usually save time.

G. Stay Focused on Your Work