问介词AT的多种用法

AT
1.动词+ at
at表示“指向某一目标，到达某地”：arrive at抵达, call at访问某地, catch at(it)当场抓住, come at攻击, fire at向…开火, glance at瞟一眼, glare at怒目而视, grieve at忧伤，knock at敲, laugh at嘲笑, look at看一眼, pull at拉扯, rejoice at对…高兴，smile at向某人微笑, shoot at朝…射击, stare at怒目而视, thrust at刺向, tear at撕, tremble at颤抖，wonder at吃惊，work at工作。例如：
Don’t let me catch you again at it.不要再让我当场逮住你。
We must “shoot the arrow at the target”. 我们必须有的放矢。
They trembled at the sight of the peasant’s spears. 看到农民的梭标，他们阵阵发抖。

2. be +形容词/过去分词+ at
其中at表示“情绪、情感的原因，或对某物具有某种感情”：be angry at恼怒于, be alarmed at对…保持警觉, be astonished at对…吃惊, be bad at不擅长, be clever at对某事很灵巧, be delighted at高兴，be disgusted at厌恶, be disappointed at对…失望，be good at擅长, be impatient at对…不够耐心, be mad at狂热于, be pleased at对…感到高兴, be
present at出席, be satisfied at满意, be surprised at吃惊, be shocked at 对…非常震惊，be terrified at受到…的恐吓, be quick at对…很机敏。例如：
They were overjoyed at his return to work. 他们对他重返工作感到欣喜。
They are alar