四级作文议论文开头【一】
1。 It is considered /thought that人们（有人，大家）认为
2。 It is generally /usually accepted /agreed/recognized that普遍（一般，通常）认为
3。 It is believed that有人（人们，大家）相信
4。 It is well—known that大家知道（众所周知）
5。 It is said that据说（有人说）
6。 It is learned that据闻（悉）
7。 It is supposed that据推测
8。 It is estimated/predicted/calculated that据估计（预计）
9。 It must be pointed that必须指出
10。 It is reported that据报道
11。 It must be admitted that必须承认
12。 It will be seen that可见（可以看出）
13。 It will be seen from this that由此可见
14。 It is understood that不用说（都知道）
15。 It can not be denied that无可否认
16。 It has been proved/demonstrated that已经证明
17。 It may be confirmed that可以肯定
18。 It may be safely said that可以有把握地说
19。 It is sometimes asked that人们有时会问
20。 It is expected that/hoped that人们希望
21。 When it comes to要说到，要谈及
四级作文议论文开头【二】
1 No one can deny the fact that ...
2 The idea is hardly supported by facts.
3 Unfortunately, none of the available data shows ...
四级作文议论文开头【三】
People hold different views about X. Some people are of the opinion that 观点1, while others point out that 观点2. As far as I am concerned, the former/latter opinion holds more weight. For one thing, 论据1. For another, 论据2.
Last but not the least, 论据3.
To conclude, 总结观点. As a college student, I am supposed to 表决心. 或 From above, we can predict that 预测.
