1. be anxious about为……担心
2.be anxious for为……担心；渴望得到某物
3. be anxious to do 渴望做某事；非常希望（可以改写为that从句）
4.A be anxious that B (should) do sth 急于、殷切希望、希望让别人做某事（虚拟语气）
下面通过经典例句来学习，融会贯通：
He seemed anxious about the meeting.
他似乎对这次会议忧心忡忡。
The foreign minister admitted he was still anxious about the situation in the country.
外交部长承认对于该国的局势他仍然颇感忧虑。
Many West Germans are anxious about the potential cost of unification.
许多西德人都很担忧国家统一的潜在代价。
potential [pəˈtenʃl]
adj.潜在的;可能的
n.可能性;潜在性;潜力;潜质;电位;电势;电压
unification [ˌjuːnɪfɪˈkeɪʃn]
n.合一;联合;统一
Parents are naturally anxious for their children.
父母自然为儿女担心。
The firm is anxious to gain a toehold in Europe.
这家公司急于在欧洲找个立脚点。
toehold [ˈtoʊhoʊld]
n.初步的地位;立足点;(攀登时可放进脚去的)小立足点，小支撑点
I‘m anxious for her to do as little as possible.
我盼她尽量少干。
She was anxious that he should meet her father.
她盼望他见她父亲。（可以改写为that从句）
I was anxious to get him here, away from family and friends.
我急于把他带到这儿，远离家人和朋友。
The police are anxious to hear from anyone who may know her.
警方急切地希望任何可能认识她的人打电话来。
They are anxious that the new course should not be seen as a soft option.
他们盼望新办法不会被视为捷径。
option [ˈɑːpʃn]
n.选项;选择;选择权;可选择的事物;选择的自由;选修课;(未来的)买卖选择权
vt.得到或获准进行选择;调动球员
George was sincerely anxious that his son should find happiness and security .
乔治真诚地希望他儿子可以找到幸福和安全感。
security [sɪˈkjʊrəti]
n.安全;担保;保护措施;安全工作;保卫部门;保安部门;保证;抵押品;证券
【用法说明】表示为某事担心，其后可接介词 about / for；表示渴望得到某物，其后通常接for，而不用about，当然也可接不定式：
He’s anxious for [to know] the result. 他急于想知道结果。
Both the Americans and the Russians are anxious to avoid conflict in South Asia.
美国人和俄罗斯人都迫切希望避免在南亚发生冲突。
conflict [ˈkɒnflɪkt , kənˈflɪkt] n.冲突;争执;争论;(军事)冲突;战斗;抵触;矛盾;不一致
vi.(两种思想、信仰、说法等)冲突，抵触
They are anxious to ensure the continuation of the economic reform programme.
他们渴望经济改革计划一定持续下去。
continuation [kənˌtɪnjuˈeɪʃn]
n.继续;连续;持续;延续部分;续篇;附加物;延续物
They are anxious to demonstrate to the voters that they have practical policies
他们急于向选民证明自己有切实可行的政策。
demonstrate [ˈdemənstreɪt]
v.证明;证实;论证;说明;表达;表露;表现;显露;示范;演示;集会示威
practical [ˈpræktɪkl]
adj.实际的;真实的;客观存在的;切实可行的;有用的;适用的;明智的;心灵手巧的;几乎完全的
n.实习课;实践课;实验考核
policy [ˈpɑːləsi]
n.政策;方针;原则;为人之道;保险单
They are each anxious to maintain the momentum of the search for a solution.
他们每个人都迫切希望能一直劲头十足地去寻求解决方案。
maintain [meɪnˈteɪn]
v.维持;保持;维修;保养;坚持(意见);固执己见;供养
momentum [moʊˈmentəm]
n.推进力;动力;势头;冲力;动量
People all over the world were anxious to have peace. 全世界人民都渴望和平。
She was anxious to finish school and get a job.
她渴望毕业找一份工作。
He was anxious not to be misunderstood.
他希望不被人误解。
She was very anxious to get away from cities and back to nature.
她特别渴望离开城市，回归自然。
I‘m anxious that we should allow plenty of time.
我殷切希望我们能留出充裕的时间。
She was anxious that he should meet her father.
她盼望他见她父亲。
They are anxious that the new course should not be seen as a soft option.
他们盼望新办法不会被视为捷径。
He is anxious that there should be no delay
他非常希望不会出现延误。
Having spent 25 years righting his own mistakes, he is anxious that children should not waste opportunities.
他花了25年的时间弥补自己的过失，因此他非常渴望孩子们不要错失良机。
The Prime Minister said: ‘I am anxious that the law should protect decent law-abiding citizens and their property‘
首相说：“我非常希望法律能保护正派的守法公民和他们的财产。”
We are anxious that he (should) do his bit.
我们渴望他尽到自己本分。
We are anxious that he (should) listen to our advice.
我们希望他听从我们的劝告。