1、be closely related to 与...息息相关；Taking exercise is closely related to health 运动与健康息息相关。
2、It pays to 是值得的；It pays to help others 帮助别人是值得的。
3、be based on 以...为基础；The progress of thee society is based on harmony 社会进步是以和谐为基础的。
3、Adj + as + Subject（主词）+ be， S + V~~~ （虽然……）
例句：Rich as our country is,the qualities of our living are by nomeans satisfactory.
{by no means = in no way = on no account 一点也不}
虽然我们的国家富有，我们的生活品质绝对令人不满意。
4、By +Ving， ~~ can ~~ （借着……，……能够……）
例句：By taking exercise， we can always stay healthy.
借着做运动，我们能够始终保持健康。
关键词： 英语 四级 作文 万能