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孩子是美国护照，在高中就进入美国学习，这种情况下，申本时应该是以美国本地生考虑。居住地址选香港较为好。

Duke 大学对学生身份的认定：We categorize all applications from students attending schools outside the United States as international, even those from students who are US citizens. We categorize all applications from students who are not US citizens or US Lawful Permanent Residents as international, even those from students who are attending schools in the US.

Harvard 的定义： We have no quotas of any kind for admission, all applications are evaluated by the same criteria, and financial aid is equally available to all students regardless of citizenship.

Johns Hopkins的认定：At Johns Hopkins University an international student is, regardless of where you live or go to school, based on your citizenship. You must either hold a U.S. Passport or Green Card to be considered domestic.

Princeton，Yale，Columbia 等虽然未对国际生有明文规定，根据综合大学前30的官方解释，基本上都认定非美国公民或者非美国绿卡持有者均为国际生。

美国护照在美国读寄宿高中算是美国本地生

关系不是很大，如果非选我会选香港。

地址选香港或大陆没有影响。孩子有美国护照，高中又在美国完成，申美本的时候会被视为美国本地生。

以美国生考虑，至于地址没有太大影响

美国护照，又在美高读书，会被视为美国本地生源了。