2014考研英语作文经典句子：中间段(4)

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　　考研英语作文经典句子之中间段，背诵后会使你的写作水平突飞猛进，记住一定要烂熟于心，减少遗忘。
        　　考研英语作文中间段：
        　　22.There are, I think, two main reasons for ________. In the first place, ________. In the second place, ________. Therefore, ________.
        　　23.Why ________? For one thing, ________. For another, ________. Perhaps the main reason is ________.
        　　24.It is no easy job to find the reasons for this tendency which involves several complicated factors. For some ________. For others ________.
        　　25.Why ________? The first reason is that ________. The second reason is ________. The third is ________. For all this, the main cause of ________ is due to ________.
        　　26.It is reasonable to maintain that ________, but it would be foolish to persist that ________. There are three reasons ________.
        　　27.The explanation for this problem involves many factors. For one thins, ________. For another, ________. Still ________.
        　　28.The causes for ________ are varied. They include ________. Perhaps the main cause is ________.