3、提纲式作文说明原因型模块之三
For most of us today, ( 1 ).
From above, we can find that the reasons why ( 2 ) are as follows. The primary reason, I think, is ( 3 ). Secondly, ( 4 ). The third reason, actually, is ( 5 ).
The significance for ( 6 ) . Therefore, ( 7 ).
注释：
(1) 人们针对…的态度和举措;(2) 归纳现状;(3) 第一个原因;(4) 第二个原因;
(5) 第三个原因;(6) 重申最重要原因;(7) 你的建议。
参考范文：Pollution
It is recognized that environmental pollution has been a greatly serious problem. Many plants, animals and people have died of polluted environment. Therefore, environmental pollution should be responsible for these diseases disabling, or bringing death to human beings and wild life.
From above, we can find the reasons why environment are polluted more and more seriously are as follows. The primary reason is harmful substances entering environment. For example, to prevent insects, farmers make use of great amounts of insecticides, so as to have bumper harvests. However, they pollute air, water and land. Secondly, the gas coming from the car engines and factories also make environment polluted badly. The third reason is the result of a growing population in the world. Everyday, so much litter and waste are poured out from houses, also pollute the environment.
The significance for controlling pollution noted that it’s high time that more effective measures should be taken. Therefore, new laws should be passed to limit the amount of pollutants from factories. Moreover, in the households, there is an obvious need to reduce litter and waste. Let’s make our good efforts, and the world will be a safer place to live for us.
4、提纲式作文说明原因型模块之四
These days we often hear that ( 1 ). It is common that ( 2 ).
Why does such circumstance occur in spite of social protects? For one thing, ( 3 ).
For another, ( 4 ). What is more, since ( 5 ), it is natural that ( 6 ).
To solve the problem is not easy at all, but is worth trying. We should do something such as ( 7 )to improve he present situation, and I do believe everything will be better in the future .
注释：
(1) 提出论题;(2) 说明现状;(3) 理由一;(4) 理由二;(5) 理由三;(6) 导致的后果;(7) 解决方法。
