1-1:30-173 Work bee use a substance to help them remember the plant for them to return the next day.And the C* N* can be more helpful than sugar.
2-2:00-247 New report found that the channel on Mars is much deeper than previous findings.
3-2:37-358 A new study found that the fences in Lion conservation help to relieve the number falling but it is difficult and expensive.
4-2:20-346 Fences reserve are more effective to reduce the lion populations sink conpared to unfenced one.Some scientist suggested to set up a buffer zone between human and lion region.
5-2:52-376 Tropical forest are predicted to die as a result of climate change such as greenhouse gases.
obtacle: 6-5:59-967 Women proportion in science and engineering major is much less compared to those of other field.There are two main reasons: 1.Family values: some school already plan to afford some family-friendly policy 2: Unfair payment: women usually get less than man after they gruduate from university.
Passage 1 2' This article talks about the bees distinguish the nectar which should continue to work. Caffeinated nectar has addiction effect on the neurons process system of bees. as a result, caffeinated nectar is always on the top agenda on bees. passage 2 2’ A carve on the mars is twice deep as we thought. The new finding reveals that the deepest channel is 1000km long and 100 km wide
passage 3 2' Fencing is a good way to protect lions. Lion conservation is difficult and expensive. The habitat has been taken by the human being.Lions attacked the cow. Fencing can minimize the conflicts between the human being and lions.
passage 4. 2' The reservation is too expensive and the only feasible method is to separate the lions with humans by a buffer area. But there is not enough money to protect the core reserves and buffer area. And fenced reserves can increase the population density of lions.
passage 5. 2' The tropical forests cannot die off even the climate change. Rainforests retain their carbon stock even as atmospheric carbon dioxide concentration increased through the century. Some models are used to support the resilience of rainforests.
obstacle. 5' Women suffered high discrimination in the past, but today small bias still exist in today's society. Less female students are engaged in engineering and science job, particularly after they become parents. There are two reasons, families value, and pay problem. Female students viewed research as a time consuming job and they do not have time to care their children and families. In addition, The pay of female scientists earn less than the male counterparts
1 - 01:02 Honey bees will remember the flower that they want to return to the next day by distinguishing the scent. The scent has something to do with the caffeine. Researchers have carried out a study on this topic. And the result of study may shed light on the cause of addiction.
2 - 01:24 Recently study shows that one of the largest channel on Mars turns out to be twice as deep as previously thought. Using radar equipment, scientists also discovered that there was a large flow of water near the channel.
3 - 02:01 A professor in Harvard proposed to protect the lions in South Africa with fences. This idea sounds strange; and the electrical fences as well as maintaining the diversification will cost a lot. Lions need a large area to live, but humans(in Africa) have taken up to 75% of the animals habitat. And because the lions attack the humans often, they are sometimes killed. To balance the need of lions and that of human, the professor has talked to several local governers to decide how large the protection area should be.
4 - 01:52 Statistics have shown that fenced reserves have higher density of lions than the opening ones. And somtimes, opening reserves can cost more, because people have to spend money on anti-poaching activities. The study shows that fencing lions is good for the lion population, and that the tend is towards fencing. But another professor suggests that fencing is not always a good choice. He says that people can also establish some buffer zones between human and lions, as some parks in Kenya have already done. However, he also adds that buffer zones are effective only for places where the lions are scarce. Finally, Packer says that people should not care only about financial problems in the protecting issue, and that they should care about the overall benefit of the earth.
5 - 02:12 A new study finds that tropical forestes are unlikely to die off due to green gases. An experiment done in rainforests across three different continents has shown that the forests have large capacity to absorb green gases.
obstacle - 04:45 This passage focus on the gender bias in academic field. Women are discriminated in the field of science, and many of them leave early due to various reasons. One of the reasons is that they lack of role models in the top of the field. Women also face problems in fighting their way toward their career in doing science researches. One is that they have more responsibily to raise the family than men do, especially to raise children. So some people suggest that universities and institutes should set up family-friendly policies to encourage women to stay. Another problem is that women are generally paid less than men.
obstacle 06.10.5 why there are fewer women than man in science are. first people think this may be the sexism issue but the answer is more complicated than that. first fewer women in research area make the women who want to enter this area feel uncomfortable. people like to have some one similar around them in their area. second the family sense and payment different all these factor make there are fewer women than men in scenic area.
1'21 the effects of caffeine to bees' behavior. 1'43 the new finding about whether there is water on Mars. 2'25 The wild lions are facing extinct and scientist find that fence can help to protect lions. 2'41 Unfence protection is more expensive than fence conservation. 2'28 Rainforest is not likely to be destroyed by greenhouse gas. 6'08 Women are more unlikely to take scientific job than men. In scientific careers, women earn less money than men do on average. Women tend to give up thier professional career for children.
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2013-3-13 10:18:33
楼主
上次我放老鼠，也被吐槽了……