【Native Speaker每日综合训练—43系列】【43-09】科技 Migration

peggychianglove

1) 1:30
The author first introduce why and how the migratory birds migrate. The author says that both global climate changing and habitat destruction caused by human impact the immigration cycle and breed cycle of migratory birds.
2) 1:10
Governments use treaties to protect migratory birds, while non-profits work hard on habitats protection and environmental researches.
3)3:10
In the first paragraph, the main debate is proposed. The author introduces two arguments in the second paragraph, and take some evidences from fossil to show that the second theory may be true in the third paragraph. How those ancient birds flied is introduced in the forth paragraph.
4)1:34
The author gives positive attitude toward the inference which states that the forelimbs was used as controller for ancient birds. However, other scholar claims that this argument is not convincing because the flapping bird is not related to gliding bird at all while in this argument the evidence mix two types.
5)2:33

obstacle: 6:35

Chadesiel

T2 262 1'27
climate change and hunting have negative effect on the migratory birds.

T3 244 1'21
a large number of international treaties and domestic laws provide protection for migratory birds
and those private non-profits are working hard

T4 409 2'48
scientists are confused by how the birds evolve the ability to fly and now they have resolved a key aspect of the problem

T5 255 1'44
scientists had little idea how the earliest flying dinosaurs avoided crashing
and not everyone is convinces by the argument

T6 387 2'20
global warming may change the population and distribution of some ocean species

OB 911 7'02
birds timed their wing flaps and position themselves relative to other birds to maximum the efficiency
and scientists have figured out the magic number of the group by using an engineering program

taohui2014

掌管 6        00:09:17.63        00:23:37.98
掌管 5        00:03:10.16        00:14:20.34
掌管 4        00:01:59.71        00:11:10.18
掌管 3        00:04:19.78        00:09:10.46
掌管 2        00:02:06.15        00:04:50.67
掌管 1        00:02:44.52        00:02:44.52

松鼠奇奇大尾巴

掌管 6        00:06:19.46        00:13:41.14
Obstacle: From the long time ago, the migration of the birds has been fascinated and mystified. The experiment using GPS of Dr. Steven shows the thing that has been previously believed but not definitely proven. The birds usually positioned themselves relative to other birds to maximize the efficiency. Another problem that why would one bird relate to other seven birds is studied through engineering. The research shows that the number is optimal and evolution can change the magic number.  
掌管 5        00:01:56.52        00:07:21.68
With the temperature of the water rising, many fish choose to migrate to cooler ocean, but their food microorganisms’ tolerance to warm water are better than fish. Therefore, they face many stress after migrating.
掌管 4        00:00:50.81        00:05:25.16
Although the hindlimbs which control dinosaurs while they were flying, it still cannot provide evidence to the evolution. Besides the gilding and the flapping are two unrelated system.
掌管 3        00:02:15.34        00:04:34.34
There are two theories about how the dinosaurs evolved to airborne creatures. The first is demonstrated with evidence, but a new idea is show which is different.  
掌管 2        00:01:05.67        00:02:19.00
The government and the private none-profits all pay many efforts to protect the migrating birds.
掌管 1        00:01:13.33        00:01:13.33
Unlike other animals, which stay in one place, birds usually survive depending on a long distance migrates. The threatens to the birds migration are destruction of the environment and hunting activities.

Speaker: Every year when comes to the season change, millions of birds migrant from one feeding place to another. Scientists hypothesize that seeing the magnetic field leads them to migrate such far distance. There is an experiment suggesting that a kind of molecules in birds’ eyes can sense when they get into the magnetic field. Then the scientists trace the way the molecules connecting the front brains and find the molecules activating when getting into the magnetic fields. Although it is not definitive proof, this may strongly suggest the birds can somehow see the magnetism field around the world while they are migrating.

NativeStudy菌

风随心动01 发表于 2014-10-21 09:05
占座~沙发~

hey, man
haven't seen you for a long time~ don't let me find out any signs of laziness, or your seat will be replaced by others~
have a nice day!

NativeStudy菌

MAGGIEHE1993 发表于 2014-10-21 09:59
占座~地板~

humm, it seems that someone has left many works undone~ hope you can get through this hard part and finally catch up with others.
wish u a good day!

MAGGIEHE1993

主页菌 发表于 2014-10-22 15:04
humm, it seems that someone has left many works undone~ hope you can get through this hard part an ...

I will finish the articles after tomorrow's GMAT~~~

cyndichiang

Speaker
Scientists find that birds can literally see the way of magnetic field during their migration.
Neuron in specific part of brain has something to do with vision.

Obstacle: 5'44''
Mystery of bird's fly: why they migrate in V-formation?
Tech helps to anwer: 1. Built-in Gps? not proven:They try to catch upwash in order to maximize efficiency
2. engineering: the number of birds in a flock is linked with birds' special programming languages

dkjam

Birds are guided by the magnitude field,and the new research from the German finds that the birds can see the earth magnetic field.
Migratory birds of definition and their main threaten should eduare in the migration, hunting,pollution,and habitat lost.
US government and non-profit group have done considerable work to protect the migratory birds.The government published treaty which protected more than 10000 species of birds,and the private group take millions of dollars to help sustain the habitat of migratory line annually.
The new evidence illustrated that 4 wings help dinosaurs keep balance and prevent rolling.
Some scientists agree with that,but some not think it is convincing。
As global warming,many species of fish migrate to cooler places,but their food would not migrate with them.So these fish have to meet the challenge with local fish for food.Also the changing acid of water and other things is big problems for fish survival..
掌管 5        00:02:42.99        00:12:00.09
掌管 4        00:02:14.05        00:09:17.10
掌管 3        00:03:55.41        00:07:03.04
掌管 2        00:01:41.30        00:03:07.63
掌管 1        00:01:26.32        00:01:26.32

samantha12

Speaking  
When birds migrate from their place to the destination, how they see? The scientists have done a experiment to find relative result.
Reading 1 1:43.90
A phenomenon about bird's migration, together with a brief introduction about this behavior, has been stated. At last, the author stated that 2 kinds of threaten birds face in their way to migration destination.
Reading 2 1:41.89
2 kinds of protection for the habitat along the birds flying have been told--the first is about the GOV treaties; the other focus on non-government organization.
Reading 3 3:38.75
Having known that birds evolved form dinasours, scientists want to make sure what's the origin of birds' flying ability. Two theories have been stated. With a new fossil found, the scientists reconstruct the animal this fossil represents. Then these scientists have demonstrate how this animal maneuvers its wings to fly.
Reading 4 1:46.49
Along with the results, the scientists also illustrated that a catastrophe, flying animal crashing on an obstacle, could happen and how flying animals conquer this problem. A hypothesis has been stated.  Even though the results seem promising, some scientists disagree with them for birds use their wings to flap rather than to glider.
结构：现象--原有理论--新研究--反对意见。
Reading 6 2:27.79
Because of a temperature change, marine organisms find their own ways to adjust this situation. How fish and plankton adjust to this have been stated by scientists and what's the following outcomes to their adjustments. Another effect has been put forward but still remains to research.
结构：现象--现象引起的变化--新现象。
Obstacle  8:00.61
Technology unlock the mysteries of bird flight.
Why and how the birds migrates in a v-formation? The bird timed the wing flaps and  positioned .
Two kinds of methods to explain the questions birds bring about.