be sure to(do)一定，必定
be taken aback吃惊
be terrified at被…吓一跳
be through with结束
be tired of厌烦；对……厌倦
be torn open被撕开
be unconscious 0f不知道…
be unfit for不适合，不胜任
be surprised at对…感到惊奇
be taken by surprise被突袭
be lost in thought沉思
be tired from因……而疲乏
be tired out疲倦极了
be true of适用于
be unequal to无法胜任……的
be united as one团结一致
be used as被…用作
get used to习惯于
be well up in精通，熟悉
be willing to(do)乐意…
be worse off处境较坏，情况恶化
be wrong with有点毛病，有些不舒服
be used to习惯于
be useful to对…有用
be wild with joy欣喜
be worried about为…而担心
be worth(doing)值得(做)
above all首先，毕竟