Our earth has been threatened by all kinds of pollutions.
Acid rain is a kind of air pollution which is hanging
over our heads and coming down from many different 【S1】__
ways such as rain and snow. It damages forests, lake and 【S2】__
rivers, buildings and even human health. Several
chemicals, including of sulfur dioxide, nitrogen 【S3】__
oxides and ozone, are involved in causing acid rain.
These chemicals either come directly from power
station chimneys and cars, and are formed from a 【S4】__
combination of pollutant gases. Sulfur dioxide is the
one chemical what is often associated with acid rain. 【S5】__
It is mainly emitted by large coal burning power
stations. It affect places thousands of miles away as 【S6】__
well as areas around the power stations. To prevent
more or worse environmental effects from acid rain, 【S7】__
we have short-term and long-term solutions. We should 【S8】__
just clean up our power station chimneys and car exhausts.
We should also change the way society thinks and reacts.
We need to conserve energy by decreasing efficiency. 【S9】__
We also need to change our way of transport, that is,
create a more efficient transport system which
depends less on private cars and more a good public 【S10】__
transport network. Everybody should work together
to save the world.
【S1】
Business major as he is, he has ____ (从未考虑过从事推销员的工作).
The example of Rembrandt&39;s painting suggests that a distinction should be made between______.
____(这是我们梦想的完美的房子).Letstakeit.
According to the passage, what do the human beings depend on to structure the world in important ways？
森林里住着三只蜥蜴1，觉得身体和周围的环境大不相同，没有安全感。其中一只说：“这里实在不安全，得想办法改变环境。”说完，这只蜥蜴便开始大干起来。森林之大，要使之改变谈何容易。不久这只蜥蜴便活活累死了。
另一只蜥蜴说：“看来想要改变这个地方非我辈能力所及，不如另寻安全的地方。”说完，便爬出了这片森林。只是它还没有找到梦中的乐土，就饿死了。
第三只蜥蜴看了看四周，说：“为什么一定要改变环境，而不改变自己来适应环境？”说完，它便借着阳光和阴影，慢慢地改变自己的肤色。于是它渐渐地在树干上隐没了。这只蜥蜴就成了变色龙2，从此在森林里安居繁衍。
蜥蜴：lizard
变色龙：chameleon