此类作文主要是针对某个问题或现象做出解释并说明原因，最后提出相应的解决方案。

　　模板1

　　The whole society shouldpay close attention to the problem of ______________. Its results may be______________________. It will also bring the changes to our society such as____________________。

　　When we think about it, wefind three constructive solutions. First, ____________________. Second,______________________________. And finally, __________________________. Thenwe will find ______________________________。

　　模板2

　　It is reported that we arefacing__________________________。

　　There are two basicsources of these problems. One is man-made, for example, ____________________.The other is a natural catastrophe.______________________________。

　　Then how should we_____________________________? One method is ____________________. Or perhaps_____________________is a better way to ________________. In addition,__________________________________________. Only in these ways can we embrace abrighter future。

　　模板3

　　No doubt, everyone wishes to__________________________. When we discuss this, some fundamental principlesshould be brought in mind。

　　The first key factor tosolve this problem is _________________________. __________is another keyfactor __________________________. But the two methods may bring us some sideeffects, for example, _____________________. Of course, the most effective wayto solve the problem is that ____________________________. But the conditionsare not yet met。

　　All in all, the solutionsmay not bring the perfect result, but as long as we do it with our brains andhands, we will one day solve it。

　　模板4

　　More and more attentionhas been focused on the problem of ____________________________。

　　It brings not only____________________, but also _______________________. But the most seriousresult of the problem is _____________________. If the problem is not settleddown, _________________________________。

　　The suggestion we can maketo the problem is _____________________________. In that case,__________________________________。