北师大版高中英语模块7--Unit 22 lesson1-2

[00:00.80]When the atmospheric¹ concertrations
[00:03.16]of these gases increase, however,
[00:05.84]more heat is trapped and the Earth's
[00:07.92]temperature rises.
[00:10.37]Over the last 100 years,
[00:13.01]the global average temperature
[00:15.10]has increased by 1°F and many experts
[00:19.48]insist that this global warming
[00:21.70]is mostly due to human activities.
[00:24.98]As a result of increased industry,
[00:27.89]agriculture, transportation, deforestation
[00:31.12]and the burning of fuels,
[00:33.20]nearly 6 tonnes of carbon dioxide
[00:36.16]is released into the atmosphere annually²
[00:39.23]for every one of the Earth's
[00:40.95]6 billion people today.
[00:43.58]The atmospheric concentration of carbon dioxide
[00:46.85]has risen by more than 30%
[00:49.63]in the last 250 years with half
[00:52.68]of this increase occurring since 1960.
[00:56.53]Given this date,it seems that the link
[00:59.23]between human activities nad rising global
[01:02.58]temperatures cannot be denied.
[01:05.75]A temperature increase of 1°F
[01:09.12]sounds insignificant³,
[01:11.36]but if we continue toproduce greenhouse gases
[01:14.77]in such huge quantities,
[01:17.13]we should expect severe consepuences.
[01:20.36]Recent repots from the Intergovernmental Panel
[01:23.09]on Climate Change(IPCC) warned
[01:27.44]that golbal warming will cause dramatic climate
[01:31.06]changes including more frequent floods,
[01:34.13]heat waves,and droughts.
[01:35.53]

1 atmospheric   

adj.大气的，空气的；大气层的；大气所引起的

参考例句：

• Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
• Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。

2 annually   

adv.一年一次，每年

参考例句：

• Many migratory birds visit this lake annually.许多候鸟每年到这个湖上作短期逗留。
• They celebrate their wedding anniversary annually.他们每年庆祝一番结婚纪念日。

3 insignificant   

adj.无关紧要的，可忽略的，无意义的

参考例句：

• In winter the effect was found to be insignificant.在冬季，这种作用是不明显的。
• This problem was insignificant compared to others she faced.这一问题与她面临的其他问题比较起来算不得什么。