導讀1.Thereareprobablythree/many/several/varietiesofreasons/causesforthisdramatic/....

1. There are probably three/many/several/varieties of reasons/causes for this dramatic/significant increase/decline in… 引起……顯著增長（下降）的原因有三個（許多、幾個、很多），我來為大家科普一下關(guān)于英語三級作文萬能句子?下面希望有你要的答案，我們一起來看看吧!

英語三級作文萬能句子

1. There are probably three/many/several/varieties of reasons/causes for this dramatic/significant increase/decline in… 引起……顯著增長（下降）的原因有三個（許多、幾個、很多）。

2. Some reasons can explain this trend. First of all,… Secondly,… Furthermore,… 一些原因可以解釋這一趨勢。首先，……；其次，……；另外，……

3. Why…? For one thing,… for another,… 為什么……？第一，……;第二，……。

4. The causes for…are varied. They include…Perhaps the main cause is… 造成……的原因有很多，包括……。主要的原因可能是……

5. Perhaps the main/primary/fundamental/most important reason is… 也許，最主要（根本、重要）的原因是……

6. The reason for this is not far to seek. The first reason is that…The second one is…The third is… For all this, the main cause of…is due to… 這一問題的原因不難發(fā)現(xiàn)。第一個原因是……。第二個是……。第三個是……。綜上所述，……最主要的原因應(yīng)該是……

7. It is no easy task to identify the reasons for this phenomenon which involves several complicated factors.要找出這一現(xiàn)象的原因并非易事，因為它涉及若干復雜的因素。

8. Certainly,…is not the sole reason for…；…is also responsible for the change/problem.當然，……并不是唯一的原因。還有……也導致了這一變化（問題）的產(chǎn)生。

9. You dont have to look very far to find out/identify the reason why… 你不必花費很大的力氣就會找到……的原因。

10. There are numerous reasons why…,and I would explore only a few of the most important ones here.……的原因有很多，在此我只想探討其中幾個最重要的原因。