以下是英语作文开头的万能句型整理，结合了不同场景和写作需求，供高考备考及日常写作参考：
一、引出观点类
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There are different opinions among people as to...
关于……人们存在不同观点。 例：There are different opinions among people as to whether college education is necessary.
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It can be said with certainty that...
可以肯定地说……
例：It can be said with certainty that good manners are essential in any society.
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As the proverb says,
正如谚语所说……
例：As the proverb says, "Practice makes perfect," hard work is key to success.
二、现象描述类
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From the cartoon we can see that...
从漫画中我们可以看出……
例：From the cartoon we can see that pollution is severely affecting people's health.
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What is illustrated is a common phenomenon in today's society...
所描绘的是当今社会的普遍现象……
例：What is illustrated is a common phenomenon in today's society: the increasing use of smartphones.
三、建议与措施类
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We should take some effective measures that...
我们应该采取有效措施……
例：We should take some effective measures to protect the environment.
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It is high time that...
该做某事了
例：It is high time that we started saving water more consciously.
四、原因分析类
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The main reason for this problem is...
这个问题的主要原因是……
例：The main reason for this problem is the lack of awareness among people.
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To begin with,...
首先……
例：To begin with, poor planning is often the root cause of project failure.
这些句型可根据作文主题灵活选用，建议结合具体内容调整。写作时注意使用自然过渡词（如however, furthermore）使文章更连贯。