Task 1(重复NA110424)
综合写作
【主题】prescribed burning，就是定期在森林里面放点小火烧一烧，然后就可以降低森林自然起火的情况了
Reading：(1)it is a threat to animals, especially nesting animals.;(2)increasing pollution level. CO2 traps heat in the atmosphere and other chemicals can cause acid rain. if the wind blows the dusts elsewhere it will further increase the pollution level;(3)it might cause natural fires, so that people will have to spend more time, money and resource.
Listening：(1)在动物的非繁殖季节进行，所以只有成年动物，并且prescribed burning比较慢，他们想跑随时可以，所以对野生动物是没有影响的;(2)烧得慢，the vegetations will absorb co2, 所以保证新的植物长出来，就不会产生什么对大气有害的气体了;(3)这个事实证明是有用的，本来就可以烧掉可能导致森林大火的枯树枝，之后即使发生什么由雷电引起的自然火灾，危害也变小了很多。
Task 2(重复NA091219)
独立写作
Do you agree or disagree with the following statement: today people will be more happier if they have fewer possessions.