用方框内单词的适当形式填空。(请将答案写在答题卡对应题号的横线上。)
possible cycle expect measure contribute recycle influence fortunate invent home
【小题1】These changes became possible because of inventions such as the steam engine.
【小题2】The Human Development index measures a country’s achievements in three ways.
【小题3】When a sandstorm es, the air is full of small dust and people have difficulty in walking or cycling .
【小题4】The garbage is then taken away and if possible, recycled .
【小题5】There is no possibility that she will marry a doctor.
【小题6】When the People’s Republic of China was founded in 1949, the life expectancy was only 35 years.
【小题7】I had wanted to go to the concert, but unfortunately , I had something else to do that day.
【小题8】The flood have killed over 2,000 people, affected 20 million and made some 4 million homeless .
【小题9】She is a most influential figure in local politics.
【小题10】He was remembered because of the contributions he made to the Chinese economic development.
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解析：
【小题1】 inventions 根据下文的steam engine蒸汽机，说明这是一些发明，创造。故使用invention。
【小题2】measures 动词衡量measure，注意该词还可以作为名词“措施”，构成take measures to do sth.
【小题3】cycling 动词cycle骑自行车，因为和walking形成并列关系，所以都使用—ing形式。
【小题4】recycled 动词recycle回收，连用，与前面的主语garbage构成逻辑上的被动关系，故使用被动语态，也就是使用过去分词的形式。
【小题5】possibility 名词possibility可能性；构成固定句式There is no possibility that….不可能….
【小题6】expectancy名词expectancy期待，这里的the life expectancy就是指寿命的预期。
【小题7】unfortunately 副词unfortunately注意构词法，该词是由形容词fortunate转换而来。
【小题8】 homeless 本句中的homeless是一个形容词作宾语补足语，洪水让4百万人无家可归。
【小题9】 influential 形容词influential有影响力的；句意：他是当地政客里最有影响力的一个。
【小题10】.contributions 固定搭配make contributions to…对…做出贡献。然后把名词contributions提前，形成被动语态的形式。