举例表示法：举例表示法：1. For example, the peoples economic status has been greatly improved. 2. For instance, the economic status of the people has been improved. 3. Lets have an example. TV sets, refrigerators and recorders have become household necessities. 说明原因的句型：说明原因的句型： 1. There are good reasons Example: There are two reasons for the changes in peoples living conditions. First, we have been carrying out an opening and reform policy. Second, our national economy is developing rapidly and the birth rate has been put under control.2. We have two good reasons for 译：我们有许多理由反对工业不受控制的发展。3. The reasons for is that + 从句译：我们支持“希望工程”的原因时，许多贫困地区的儿童付不起继 续学业的各种费用。说明原因型模块（一）Nowadays ,there are more and more XX in some big cities . It is estimated that ( 1 ). Why have there been so many XX ? Maybe the reasons can be listed as follows.The first one is that ( 2 ) .Besides,( 3 ) . The third reason is ( 4 ).To sum up ,the main cause of XX is due to ( 5 ) .It is high time that something were done upon it. For one thing ,( 6 ).On the other hand ,( 7 ). All these measures will certainly reduce .