数轴上的点M对应的数是－2，那么将点M向右移动4个单位长度，此时点M表示的数是（  ）

    Humans like to live and work in groups. Language is the “cement(胶合剂)”____holds these groups together. Language is part of culture. Culture, in this sense,____ (mean) all those customs, skills, and attitudes that are part of the behavior of a ____ (particularly) group. What you think ____ what you want in life are all affected by the culture of the group in which you ____( raise). Groups of people live in different ways. They may have different skills, organizations, and art forms. Their family life may be completely different from yours.

    Human beings are inventive animals. They can decide to change their cultures in order to meet various ____(situation). Of all living things, human beings are the ____(clever). They can choose ____(live) in many environments and in a wide variety of ways. Only human beings can choose where and how they want to live and then improve the physical environment to help ____(they)realize these choices.

    Acquiring the wisdom to make wise choices ____ (be)the lasting challenge of being human.

这首宋词，然后回答问题。

                                  贺新郎

                                宋  辛弃疾

邑中园亭，仆皆为赋此词。一日，独坐停云，水声山色竞来相娱。意溪山欲援例者，遂作数语，庶几仿佛渊明思亲友之意云。

甚矣吾衰矣。怅平生、交游零落，只今馀几！白发空垂三千丈，一笑人间万事。问何物、能令公喜？我见青山多妩媚，料青山见我应如是。情与貌，略相似。

一尊搔首东窗里。想渊明《停云》诗就，此时风味。江左沉酣求名者，岂识浊醪妙理？回首叫、云飞风起。不恨古人吾不见，恨古人不见吾狂耳。知我者，二三子。                              

注1：宋宁宗庆元四年（1198），被罢，59岁，此词仿陶氏《停云》“思亲怀友”之意，闲居铅山县自造“停云堂”感怀而作。

康有为、梁启超倡导变法的首要目的是（    ）