Living things can also do many other things that non-living things cannot do. Living things take【C1】______ food, and grow by con

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问题     Living things can also do many other things that non-living things cannot do. Living things take【C1】______ food, and grow by converting the food into their own【C2】______ . Living things can move. They can get energy they need for movement by breaking down food during the【C3】______ of respiration. They excrete the waste products of respiration. Living things respond【C4】______ stimuli such as heat, light, and touch. A bird and a tree are【C5】______ because they do all these things. Living things are made up of tiny units called cells. Some simple plants and animals, and all bacteria,【C6】______ of only one cell. Many biologists consider bacteria as plants, but some【C7】______ them as neither plants nor animals. The vast majority of living things are made up of countless【C8】______ of cells. All the living parts of cells are made up of large molecules【C9】______ proteins. There are thousands of【C10】______ of proteins in each cell.
【C2】

选项 A、belongings
B、property
C、substance
D、possessions

答案C

解析 belongings指的是个人"财物",常用复数;property一般不包括房屋、土地和金钱,一般指的是房地产;substance常指具体的"物质,东西"。这一段谈的是生物方面的问题,这句是说生物摄取食物,再将食物转化为自己(所需的)物质而生长,因此选C合适。possessions常用复数,拥有的东西包括wealth,property等,范围较广。
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