lumps of 一块块(通常指形状不固定的坚硬物质)
iron-rich 含铁量高的
conduct 传导(热)
undersides 底部
out of sight 在视野之外,看不见
detection 探测
测验 请听报道并回答下列问题。
1. According to the text, what is the mystery that has puzzled scientists for a long time?
2. What technology does the Manchester team plan to use to find and dig up the missing meteorites?
3. True or false? The metal rocks are able to conduct the heat of the sun, which enables them to melt and sink downwards.
4. Which word in the text means 'in equal numbers or amounts'?
答案 1. According to the text, what is the mystery that has puzzled scientists for a long time?
The mystery that has long puzzled scientists is why so few iron meteorites are picked up off the ice of Antarctica.
2. What technology does the Manchester team plan to use to find and dig up the missing meteorites?
The Manchester team plans to find the missing meteorites and dig them up with the aid of landmine detection technology.
3. True or false? The metal rocks are able to conduct the heat of the sun, which enables them to melt and sink downwards.
False. The metal rocks are able to efficiently transfer heat to their undersides where they can melt the surrounding ice, and this allows them to sink downwards.
【Hunt for Antarctica's 'missing meteorites' 英国科学家将赴南极寻找“失踪的陨石”】相关文章:
★ Why do cities make us rude? 为什么城市会让人变得无礼?
★ Metonymy and synecdoche 修辞法:转喻和提喻
★ Samsung smartphone problem, zoo chimps feeling wild 三星智能手机问题,动物园的黑猩猩野性十足
★ Cat got your tongue? 不吭声,无言以对
★ Japan PM Abe sends ritual offering to Yasukuni shrine for war dead
★ Machu Picchu and David Bowie's collection 马丘比丘垃圾泛滥,大卫·鲍伊的艺术收藏
★ 大学生活的小测验
★ 球员抑郁和焦虑
最新
2019-11-15
2019-11-15
2019-11-15
2019-11-15
2019-11-15
2019-11-15