英语听力：探索发现 2012-07-04 恐龙是怎样的炼成的—20
时间：2019-01-23 作者：英语课 分类：探索与发现2012年
英语课
So how realistic do you think it is to show 3 tyrannosaurs coming together like this?
We have evidence suggesting that these animals lived in groups. It’s very reasonable to imagine a scene like this in which you have a juvenile 1 eating a carcass of a duck-billed dinosaur 2, and other individuals coming and being attracted by the carcass.
If this is going to be a skeleton here representing an edmontosaurus, a duck-billed dinosaur being eaten by the T-Rexes. Is there actually evidence that they ate this type of dinosaur?
You have evidence in the shape of bones of duck-billed like edmontosaurus that have tooth marks essentially 3 and those marks, those scratches on the bone coincide well with the shape of the crowns of the teeth of tyrannosaurus Rex.
It’s quite forensic 4. You’ve actually got gnaw 5 marks on a duck-billed dinosaur. (Yes. Yes.) Fantastic.
But the exhibition isn’t only about T-Rex. And amongst the 20 major mounts will be fruitadens, the smallest dinosaur ever to be found in North America. Working from his own illustration, Doyle has created 5 fruitadens. It’s the first time that this dinosaur has ever been reconstructed.
This is full-grown to scale. It’s a very small dinosaur and one of the smallest in the world. Because its specimen 6 is so fragile and sparse 7, the information that we can gather, a lot of it is inferred or we’re guessing that it fits with the group of animals based on what information we do have. We don’t have a full skeleton.
By comparing the size of a full limb to a thigh 8 bone, it was clear that fruitadens was bipedal, and by studying close relatives, it’s possible to get a good idea of what a complete skeleton would have looked like. The real challenge was to turn that skeleton into a flesh ate animal.
Musculature can be inferred from the bones. You can see muscle attachments 9. Every animal has some sort of muscle that pulls the leg back and also something that supports the leg in front, a calf 10 muscle, gastrocnemius or any sort of tendon that will go down to the feet. That’s something that exists on every animal that walks on land.
n.青少年，少年读物；adj.青少年的，幼稚的
- For a grown man he acted in a very juvenile manner.身为成年人，他的行为举止显得十分幼稚。
- Juvenile crime is increasing at a terrifying rate.青少年犯罪正在以惊人的速度增长。
n.恐龙
- Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击？
- He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。
adv.本质上，实质上，基本上
- Really great men are essentially modest.真正的伟人大都很谦虚。
- She is an essentially selfish person.她本质上是个自私自利的人。
adj.法庭的，雄辩的
- The report included his interpretation of the forensic evidence.该报告包括他对法庭证据的诠释。
- The judge concluded the proceeding on 10:30 Am after one hour of forensic debate.经过近一个小时的法庭辩论后，法官于10时30分宣布休庭。
v.不断地啃、咬；使苦恼，折磨
- Dogs like to gnaw on a bone.狗爱啃骨头。
- A rat can gnaw a hole through wood.老鼠能啃穿木头。
n.样本，标本
- You'll need tweezers to hold up the specimen.你要用镊子来夹这标本。
- This specimen is richly variegated in colour.这件标本上有很多颜色。
adj.稀疏的，稀稀落落的，薄的
- The teacher's house is in the suburb where the houses are sparse.老师的家在郊区，那里稀稀拉拉有几处房子。
- The sparse vegetation will only feed a small population of animals.稀疏的植物只够喂养少量的动物。
n.大腿；股骨
- He is suffering from a strained thigh muscle.他的大腿肌肉拉伤了，疼得很。
- The thigh bone is connected to the hip bone.股骨连着髋骨。
n.（用电子邮件发送的）附件( attachment的名词复数 )；附着；连接；附属物
- The vacuum cleaner has four different attachments. 吸尘器有四个不同的附件。
- It's an electric drill with a range of different attachments. 这是一个带有各种配件的电钻。