诺贝尔经济学奖获得者约瑟夫•E•斯蒂格利茨认为：全球化并没有为世界上大多数穷人服务，也没有为环境服务，更没有为全球稳定服务。约瑟夫•E•斯蒂格利茨得出这一结论的依据应该是

①全球化拉大了世界贫富差距②全球化导致全球环境进一步恶化

③全球化增加了发展中国家经济风险④全球化促进了国际资源的优化配置

    Why can't some people even get an inch of what they dream of becoming? Blame it on pure dreaming and lack of surrounding goals for achieving their dreams.

    Setting goals is very significant part of accomplishing and positive actions. It is like scaling（攀爬）a 200 feet construction and marking in the early hours on what feet you would like to reach at this specific period.

    People who set goals literally generate a map of their goal settings in life, marking where they should start, where to study a bit, and where and when to end. Once this map coms into being, it allows the map drawer to check where he is in the scheme（安排）of things and whether or not he is making some planning that will take him closer to his goals.

    By surrounding goals, people will know how they are doing and what they should be doing to get their goals or dreams in life. They will know if they can relax or if they have to double their efforts when they are falling short of what is expected of them.

    Goal surroundings means a person's proactive in dealing with challenges that may affect his plans. Being proactive means one is able to outline possible difficulties that may occur as well as the solutions to these difficulties. By doing this, a person is not easily scared or defeated when challenges occur because he has already prepared for them. He knows they can happen and he has prepared a solution or strategy when that time comes.

    Setting goals will enable people to track their progress in whatever hard work they set out to do. It will help people become more confident in themselves and more motivated to get their plans.

    Nowadays, studying abroad is becoming more and more popular in China. Many parents send their children abroad instead of letting them receive e____ at home.

    There are many advantages for people to attend school abroad. Firstly, he can use  the  foreign  language  in  his  everyday life  so  that  his  ability in  the  second language may be greatly i____. While studying in a foreign country, he will meet many students from abroad and it is much easier to make f____ with them. Also, he can get familiar with the latest knowledge in different fields. In this w____there is every chance that he is a____to widen his horizon (眼界) and broaden his mind.

    Of course, attending schools abroad may b____a lot of problems. The most serious one is language barrier(障碍). Most of the students who go abroad don't have e____  skills in the language spoken there. As a result, on arriving there, they will find it difficult to u____what the teachers say. Moreover, they don't know the customs(风俗) of local people very w____and they may have trouble dealing with some situations.

    Therefore, one must think of both sides carefully before m____ a decision. The place where you study is not very important, but the desire(渴望) to learn matters the most.

如图甲所示设想有一个高为h、上下底面积为S的长方体浸没在密度为ρ的液体中，该长方体上表面在液体中的深度为h₁，下表面在液体中的深度为h₂．请你从浮力产生的原因证明：F_浮=ρ_液gV_物．