内容正文:
导学第一步——填一填·夯实基础知识
Ⅰ.重点单词
1.graph n.图;图表;曲线图
2.seal n.海豹
3.release vt.& n.排放;释放;发布
4.methane n.甲烷;沼气
5.carbon n.碳
6.dioxide n.二氧化物
7.fossil n.化石
8.fuel n.燃料;刺激性言行
9.worldwide adv.遍及全球地
adj.世界各地的;影响全世界的
10.trend n.趋势;趋向;动向
11.policy n.政策;方针;原则
12.footprint n.足迹;(某物所占的)空间量;面积
13.seize vt.抓住;夺取;控制
Ⅱ.派生单词
1.emission n.排放物;散发物;排放;→emit vt.发出;放出(热/光/气等)
2.melt vi.& vt.(使)融化;熔化;软化→melting adj.融化的;熔化的
3.starve vi.& vt.(使)挨饿;饿死→starvation n.挨饿;饥饿;饿死→starving adj.饥饿的
4.ecology n.生态;生态学→ecological adj.生态的;生态学的→ecologically adv.从生态 学的观点看;生态上→ecologist n.生态学家
5.habitable adj.适合居住的→habitation n.居住;住所→habitant n.居民,居住者
6.sustain vt.维持;遭受;承受住→sustainable adj.可持续的;合理利用的
7.comprehensive adj.全部的;所有的;详尽的→comprehend v.理解;领悟→comprehension n.理解力;领悟能力
8.frequently adv.频繁地;经常→frequent adj.频繁的;经常发生的→frequency n.发生率; 出现率;重复率;频繁
9.broadcast vt.& vi.播送;广播;传播n.广播节目;电视节目→broadcaster n.播音员; 广播电台
10.restrict vt.限制;限定;束缚→restricted adj.受限制的;保密的→restriction n.限制规 定;限制法规;约束→restrictive adj.限制性的,约束的
Ⅲ.核心短语
1.carbon dioxide 二氧化碳
2.fossil fuel 化石燃料(如煤或石油)
3.along with 和……一起
4.have an impact on... 对……有影响
5.refer to 参考;查阅;指的是
6.be trapped in 陷入……;被困在……
7.not only...but also... 不仅……而且……
8.result in 导致
9.take action/measures 采取行动/措施
10.seize an opportunity 抓住机会
11.take responsibility for 为……负责
导学第二步——读一读·理解课文内容
Fastreading
Skim the text and fill in the blanks
Carefulreading
Choose the best answer according to the text.
1.Why was the dead polar bear found on Norway's Arctic island?
A.Because it had to travel greater distances to find food.
B.Because it starved to death.
C.Because there was sea ice.
D.Because it has adapted to the ecology.
2.What is the function of “ natural ” greenhouse effect?
A.To trap longwave radiation.
B.To release heat from the sun.
C.To sustain life on Earth.
D.To release shortwave radiation.
3.Which is NOT the result of global warming?
A.Extreme rainstorms.
B.Heatwaves.
C.N