分享一些四級高頻詞組，供大家學習使用：

as a result結果，因此

as far as 到……程度;就……而言

as for/to 至于，關于

as good as 幾乎，差不多

as if/though 好像，仿佛

as it is/was 實際上，照現狀

as it were 可以說,在某種程度上

as soon as盡快

be about to do sth.即將、正要做某事

be addicted to沉溺于

be based on根據，以……為基礎

be better off有較多錢，比較寬裕

be made up of由……組成，由……構成

be/keep/get in touch with和……保持聯系

be critical of對……挑剔,對……吹毛求疵

be destructive of對……有破壞作用

be doomed to注定

be economical of節儉;節省

be in doubt 不肯定，不確定

be involved in牽涉到，涉及;參與

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